Merge branch 'master' into APISamples

Conflicts:
	tests/baselines/reference/APISample_compile.js
	tests/baselines/reference/APISample_compile.types
	tests/baselines/reference/APISample_linter.js
	tests/baselines/reference/APISample_linter.types
	tests/baselines/reference/APISample_transform.js
	tests/baselines/reference/APISample_transform.types
	tests/baselines/reference/APISample_watcher.js
	tests/baselines/reference/APISample_watcher.types

src/compiler/checker.ts

@@ -126,6 +126,7 @@ module ts {
         let stringLiteralTypes: Map<StringLiteralType> = {};
         let emitExtends = false;
         let emitDecorate = false;
+        let emitParam = false;
 
         let mergedSymbols: Symbol[] = [];
         let symbolLinks: SymbolLinks[] = [];
@@ -3000,6 +3001,16 @@ module ts {
             return getSignaturesOfObjectOrUnionType(getApparentType(type), kind);
         }
 
+        function typeHasCallOrConstructSignatures(type: Type): boolean {
+            let apparentType = getApparentType(type);
+            if (apparentType.flags & (TypeFlags.ObjectType | TypeFlags.Union)) {
+                let resolved = resolveObjectOrUnionTypeMembers(<ObjectType>type);
+                return resolved.callSignatures.length > 0
+                    || resolved.constructSignatures.length > 0;
+            }
+            return false;
+        }
+
         function getIndexTypeOfObjectOrUnionType(type: Type, kind: IndexKind): Type {
             if (type.flags & (TypeFlags.ObjectType | TypeFlags.Union)) {
                 let resolved = resolveObjectOrUnionTypeMembers(<ObjectType>type);
@@ -8727,24 +8738,92 @@ module ts {
             }
         }
 
+        /** Checks a type reference node as an expression. */
+        function checkTypeNodeAsExpression(node: TypeNode | LiteralExpression) {
+            // When we are emitting type metadata for decorators, we need to try to check the type
+            // as if it were an expression so that we can emit the type in a value position when we 
+            // serialize the type metadata.
+            if (node && node.kind === SyntaxKind.TypeReference) {
+                let type = getTypeFromTypeNodeOrHeritageClauseElement(node);
+                let shouldCheckIfUnknownType = type === unknownType && compilerOptions.separateCompilation;
+                if (!type || (!shouldCheckIfUnknownType && type.flags & (TypeFlags.Intrinsic | TypeFlags.NumberLike | TypeFlags.StringLike))) {
+                    return;
+                }
+                if (shouldCheckIfUnknownType || type.symbol.valueDeclaration) {
+                    checkExpressionOrQualifiedName((<TypeReferenceNode>node).typeName);
+                }
+            }
+        }
+
+        /**
+          * Checks the type annotation of an accessor declaration or property declaration as 
+          * an expression if it is a type reference to a type with a value declaration.
+          */
+        function checkTypeAnnotationAsExpression(node: AccessorDeclaration | PropertyDeclaration | ParameterDeclaration | MethodDeclaration) {
+            switch (node.kind) {
+                case SyntaxKind.PropertyDeclaration:
+                    checkTypeNodeAsExpression((<PropertyDeclaration>node).type);
+                    break;
+                case SyntaxKind.Parameter: checkTypeNodeAsExpression((<ParameterDeclaration>node).type);
+                    break;
+                case SyntaxKind.MethodDeclaration:
+                    checkTypeNodeAsExpression((<MethodDeclaration>node).type);
+                    break;
+                case SyntaxKind.GetAccessor:
+                    checkTypeNodeAsExpression((<AccessorDeclaration>node).type);
+                    break;
+                case SyntaxKind.SetAccessor:
+                    checkTypeNodeAsExpression(getSetAccessorTypeAnnotationNode(<AccessorDeclaration>node));
+                    break;
+            }
+        }
+        
+        /** Checks the type annotation of the parameters of a function/method or the constructor of a class as expressions */
+        function checkParameterTypeAnnotationsAsExpressions(node: FunctionLikeDeclaration) {
+            // ensure all type annotations with a value declaration are checked as an expression
+            for (let parameter of node.parameters) {
+                checkTypeAnnotationAsExpression(parameter);
+            }
+        }
+
         /** Check the decorators of a node */
         function checkDecorators(node: Node): void {
             if (!node.decorators) {
                 return;
-            }            
+            }
 
-            switch (node.kind) {
-                case SyntaxKind.ClassDeclaration:
-                case SyntaxKind.MethodDeclaration:
-                case SyntaxKind.GetAccessor:
-                case SyntaxKind.SetAccessor:
-                case SyntaxKind.PropertyDeclaration:
-                case SyntaxKind.Parameter:
-                    emitDecorate = true;
-                    break;
+            // skip this check for nodes that cannot have decorators. These should have already had an error reported by
+            // checkGrammarDecorators.
+            if (!nodeCanBeDecorated(node)) {
+                return;
+            }
 
-                default:
-                    return;
+            if (compilerOptions.emitDecoratorMetadata) {
+                // we only need to perform these checks if we are emitting serialized type metadata for the target of a decorator.
+                switch (node.kind) {
+                    case SyntaxKind.ClassDeclaration:
+                        var constructor = getFirstConstructorWithBody(<ClassDeclaration>node);
+                        if (constructor) {
+                            checkParameterTypeAnnotationsAsExpressions(constructor);
+                        }
+                        break;
+
+                    case SyntaxKind.MethodDeclaration:
+                        checkParameterTypeAnnotationsAsExpressions(<FunctionLikeDeclaration>node);
+                        // fall-through
+
+                    case SyntaxKind.SetAccessor:
+                    case SyntaxKind.GetAccessor:
+                    case SyntaxKind.PropertyDeclaration:
+                    case SyntaxKind.Parameter:
+                        checkTypeAnnotationAsExpression(<PropertyDeclaration | ParameterDeclaration>node);
+                        break;
+                }
+            }
+
+            emitDecorate = true;
+            if (node.kind === SyntaxKind.Parameter) {
+                emitParam = true;
             }
 
             forEach(node.decorators, checkDecorator);
@@ -10764,6 +10843,10 @@ module ts {
                     links.flags |= NodeCheckFlags.EmitDecorate;
                 }
 
+                if (emitParam) {
+                    links.flags |= NodeCheckFlags.EmitParam;
+                }
+
                 links.flags |= NodeCheckFlags.TypeChecked;
             }
         }
@@ -11442,6 +11525,201 @@ module ts {
             return undefined;
         }
 
+        /** Serializes an EntityName (with substitutions) to an appropriate JS constructor value. Used by the __metadata decorator. */
+        function serializeEntityName(node: EntityName, getGeneratedNameForNode: (Node: Node) => string, fallbackPath?: string[]): string {
+            if (node.kind === SyntaxKind.Identifier) {
+                var substitution = getExpressionNameSubstitution(<Identifier>node, getGeneratedNameForNode);
+                var text = substitution || (<Identifier>node).text;
+                if (fallbackPath) {
+                    fallbackPath.push(text);
+                }
+                else {
+                    return text;
+                }
+            }
+            else {
+                var left = serializeEntityName((<QualifiedName>node).left, getGeneratedNameForNode, fallbackPath);
+                var right = serializeEntityName((<QualifiedName>node).right, getGeneratedNameForNode, fallbackPath);
+                if (!fallbackPath) {
+                    return left + "." + right;
+                }
+            }
+        }
+
+        /** Serializes a TypeReferenceNode to an appropriate JS constructor value. Used by the __metadata decorator. */
+        function serializeTypeReferenceNode(node: TypeReferenceNode, getGeneratedNameForNode: (Node: Node) => string): string | string[] {
+            // serialization of a TypeReferenceNode uses the following rules:
+            //
+            // * The serialized type of a TypeReference that is `void` is "void 0".
+            // * The serialized type of a TypeReference that is a `boolean` is "Boolean".
+            // * The serialized type of a TypeReference that is an enum or `number` is "Number".
+            // * The serialized type of a TypeReference that is a string literal or `string` is "String".
+            // * The serialized type of a TypeReference that is a tuple is "Array".
+            // * The serialized type of a TypeReference that is a `symbol` is "Symbol".
+            // * The serialized type of a TypeReference with a value declaration is its entity name.
+            // * The serialized type of a TypeReference with a call or construct signature is "Function".
+            // * The serialized type of any other type is "Object".
+            let type = getTypeFromTypeReference(node);
+            if (type.flags & TypeFlags.Void) {
+                return "void 0";
+            }
+            else if (type.flags & TypeFlags.Boolean) {
+                return "Boolean";
+            }
+            else if (type.flags & TypeFlags.NumberLike) {
+                return "Number";
+            }
+            else if (type.flags & TypeFlags.StringLike) {
+                return "String";
+            }
+            else if (type.flags & TypeFlags.Tuple) {
+                return "Array";
+            }
+            else if (type.flags & TypeFlags.ESSymbol) {
+                return "Symbol";
+            }
+            else if (type === unknownType) {
+                var fallbackPath: string[] = [];
+                serializeEntityName(node.typeName, getGeneratedNameForNode, fallbackPath);
+                return fallbackPath;
+            }
+            else if (type.symbol && type.symbol.valueDeclaration) {
+                return serializeEntityName(node.typeName, getGeneratedNameForNode);
+            }
+            else if (typeHasCallOrConstructSignatures(type)) {
+                return "Function";
+            }
+
+            return "Object";
+        }
+
+        /** Serializes a TypeNode to an appropriate JS constructor value. Used by the __metadata decorator. */
+        function serializeTypeNode(node: TypeNode | LiteralExpression, getGeneratedNameForNode: (Node: Node) => string): string | string[] {
+            // serialization of a TypeNode uses the following rules:
+            //
+            // * The serialized type of `void` is "void 0" (undefined).
+            // * The serialized type of a parenthesized type is the serialized type of its nested type.
+            // * The serialized type of a Function or Constructor type is "Function".
+            // * The serialized type of an Array or Tuple type is "Array".
+            // * The serialized type of `boolean` is "Boolean".
+            // * The serialized type of `string` or a string-literal type is "String".
+            // * The serialized type of a type reference is handled by `serializeTypeReferenceNode`.
+            // * The serialized type of any other type node is "Object".
+            if (node) {
+                switch (node.kind) {
+                    case SyntaxKind.VoidKeyword:
+                        return "void 0";
+                    case SyntaxKind.ParenthesizedType:
+                        return serializeTypeNode((<ParenthesizedTypeNode>node).type, getGeneratedNameForNode);
+                    case SyntaxKind.FunctionType:
+                    case SyntaxKind.ConstructorType:
+                        return "Function";
+                    case SyntaxKind.ArrayType:
+                    case SyntaxKind.TupleType:
+                        return "Array";
+                    case SyntaxKind.BooleanKeyword:
+                        return "Boolean";
+                    case SyntaxKind.StringKeyword:
+                    case SyntaxKind.StringLiteral:
+                        return "String";
+                    case SyntaxKind.NumberKeyword:
+                        return "Number";
+                    case SyntaxKind.TypeReference:
+                        return serializeTypeReferenceNode(<TypeReferenceNode>node, getGeneratedNameForNode);
+                    case SyntaxKind.TypeQuery:
+                    case SyntaxKind.TypeLiteral:
+                    case SyntaxKind.UnionType:
+                    case SyntaxKind.AnyKeyword:
+                        break;
+                    default:
+                        Debug.fail("Cannot serialize unexpected type node.");
+                        break;
+                }
+            }
+             
+            return "Object";
+        }
+
+        /** Serializes the type of a declaration to an appropriate JS constructor value. Used by the __metadata decorator for a class member. */
+        function serializeTypeOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): string | string[] {
+            // serialization of the type of a declaration uses the following rules:
+            //
+            // * The serialized type of a ClassDeclaration is "Function"
+            // * The serialized type of a ParameterDeclaration is the serialized type of its type annotation.
+            // * The serialized type of a PropertyDeclaration is the serialized type of its type annotation.
+            // * The serialized type of an AccessorDeclaration is the serialized type of the return type annotation of its getter or parameter type annotation of its setter.
+            // * The serialized type of any other FunctionLikeDeclaration is "Function".
+            // * The serialized type of any other node is "void 0".
+            // 
+            // For rules on serializing type annotations, see `serializeTypeNode`.
+            switch (node.kind) {
+                case SyntaxKind.ClassDeclaration:       return "Function";
+                case SyntaxKind.PropertyDeclaration:    return serializeTypeNode((<PropertyDeclaration>node).type, getGeneratedNameForNode);
+                case SyntaxKind.Parameter:              return serializeTypeNode((<ParameterDeclaration>node).type, getGeneratedNameForNode);
+                case SyntaxKind.GetAccessor:            return serializeTypeNode((<AccessorDeclaration>node).type, getGeneratedNameForNode);
+                case SyntaxKind.SetAccessor:            return serializeTypeNode(getSetAccessorTypeAnnotationNode(<AccessorDeclaration>node), getGeneratedNameForNode);
+            }
+            if (isFunctionLike(node)) {
+                return "Function";
+            }
+            return "void 0";
+        }
+        
+        /** Serializes the parameter types of a function or the constructor of a class. Used by the __metadata decorator for a method or set accessor. */
+        function serializeParameterTypesOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): (string | string[])[] {
+            // serialization of parameter types uses the following rules:
+            //
+            // * If the declaration is a class, the parameters of the first constructor with a body are used.
+            // * If the declaration is function-like and has a body, the parameters of the function are used.
+            // 
+            // For the rules on serializing the type of each parameter declaration, see `serializeTypeOfDeclaration`.
+            if (node) {
+                var valueDeclaration: FunctionLikeDeclaration;
+                if (node.kind === SyntaxKind.ClassDeclaration) {
+                    valueDeclaration = getFirstConstructorWithBody(<ClassDeclaration>node);
+                }
+                else if (isFunctionLike(node) && nodeIsPresent((<FunctionLikeDeclaration>node).body)) {
+                    valueDeclaration = <FunctionLikeDeclaration>node;
+                }
+                if (valueDeclaration) {
+                    var result: (string | string[])[];
+                    var parameters = valueDeclaration.parameters;
+                    var parameterCount = parameters.length;
+                    if (parameterCount > 0) {
+                        result = new Array<string>(parameterCount);
+                        for (var i = 0; i < parameterCount; i++) {
+                            if (parameters[i].dotDotDotToken) {
+                                var parameterType = parameters[i].type;
+                                if (parameterType.kind === SyntaxKind.ArrayType) {
+                                    parameterType = (<ArrayTypeNode>parameterType).elementType;
+                                }
+                                else if (parameterType.kind === SyntaxKind.TypeReference && (<TypeReferenceNode>parameterType).typeArguments && (<TypeReferenceNode>parameterType).typeArguments.length === 1) {
+                                    parameterType = (<TypeReferenceNode>parameterType).typeArguments[0];
+                                }
+                                else {
+                                    parameterType = undefined;
+                                }
+                                result[i] = serializeTypeNode(parameterType, getGeneratedNameForNode);
+                            }
+                            else {
+                                result[i] = serializeTypeOfNode(parameters[i], getGeneratedNameForNode);
+                            }
+                        }
+                        return result;
+                    }
+                }
+            }
+            return emptyArray;
+        }
+
+        /** Serializes the return type of function. Used by the __metadata decorator for a method. */
+        function serializeReturnTypeOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): string | string[] {
+            if (node && isFunctionLike(node)) {
+                return serializeTypeNode((<FunctionLikeDeclaration>node).type, getGeneratedNameForNode);
+            }
+            return "void 0";
+        }
+
         function writeTypeOfDeclaration(declaration: AccessorDeclaration | VariableLikeDeclaration, enclosingDeclaration: Node, flags: TypeFormatFlags, writer: SymbolWriter) {
             // Get type of the symbol if this is the valid symbol otherwise get type at location
             let symbol = getSymbolOfNode(declaration);
@@ -11529,6 +11807,9 @@ module ts {
                 resolvesToSomeValue,
                 collectLinkedAliases,
                 getBlockScopedVariableId,
+                serializeTypeOfNode,
+                serializeParameterTypesOfNode,
+                serializeReturnTypeOfNode,
             };
         }
 
@@ -11593,15 +11874,15 @@ module ts {
                 return false;
             }
             if (!nodeCanBeDecorated(node)) {
-                return grammarErrorOnNode(node, Diagnostics.Decorators_are_not_valid_here);
+                return grammarErrorOnFirstToken(node, Diagnostics.Decorators_are_not_valid_here);
             }
             else if (languageVersion < ScriptTarget.ES5) {
-                return grammarErrorOnNode(node, Diagnostics.Decorators_are_only_available_when_targeting_ECMAScript_5_and_higher);
+                return grammarErrorOnFirstToken(node, Diagnostics.Decorators_are_only_available_when_targeting_ECMAScript_5_and_higher);
             }
             else if (node.kind === SyntaxKind.GetAccessor || node.kind === SyntaxKind.SetAccessor) {
                 let accessors = getAllAccessorDeclarations((<ClassDeclaration>node.parent).members, <AccessorDeclaration>node);
                 if (accessors.firstAccessor.decorators && node === accessors.secondAccessor) {
-                    return grammarErrorOnNode(node, Diagnostics.Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name);
+                    return grammarErrorOnFirstToken(node, Diagnostics.Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name);
                 }
             }
             return false;
@@ -12445,7 +12726,16 @@ module ts {
                 let identifier = <Identifier>name;
                 if (contextNode && (contextNode.parserContextFlags & ParserContextFlags.StrictMode) && isEvalOrArgumentsIdentifier(identifier)) {
                     let nameText = declarationNameToString(identifier);
-                    return grammarErrorOnNode(identifier, Diagnostics.Invalid_use_of_0_in_strict_mode, nameText);
+
+                    // We are checking if this name is inside class declaration or class expression (which are under class definitions inside ES6 spec.)
+                    // if so, we would like to give more explicit invalid usage error.
+                    // This will be particularly helpful in the case of "arguments" as such case is very common mistake.
+                    if (getAncestor(name, SyntaxKind.ClassDeclaration) || getAncestor(name, SyntaxKind.ClassExpression)) {
+                        return grammarErrorOnNode(identifier, Diagnostics.Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode, nameText);
+                    }
+                    else {
+                        return grammarErrorOnNode(identifier, Diagnostics.Invalid_use_of_0_in_strict_mode, nameText);
+                    }
                 }
             }
         }

src/compiler/commandLineParser.ts

@@ -156,6 +156,11 @@ module ts {
             shortName: "w",
             type: "boolean",
             description: Diagnostics.Watch_input_files,
+        },
+        {
+            name: "emitDecoratorMetadata",
+            type: "boolean",
+            experimental: true
         }
     ];
 

src/compiler/diagnosticInformationMap.generated.ts

@@ -167,7 +167,8 @@ module ts {
         Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name: { code: 1207, category: DiagnosticCategory.Error, key: "Decorators cannot be applied to multiple get/set accessors of the same name." },
         Cannot_compile_non_external_modules_when_the_separateCompilation_flag_is_provided: { code: 1208, category: DiagnosticCategory.Error, key: "Cannot compile non-external modules when the '--separateCompilation' flag is provided." },
         Ambient_const_enums_are_not_allowed_when_the_separateCompilation_flag_is_provided: { code: 1209, category: DiagnosticCategory.Error, key: "Ambient const enums are not allowed when the '--separateCompilation' flag is provided." },
-        A_class_declaration_without_the_default_modifier_must_have_a_name: { code: 1210, category: DiagnosticCategory.Error, key: "A class declaration without the 'default' modifier must have a name" },
+        Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode: { code: 1210, category: DiagnosticCategory.Error, key: "Invalid use of '{0}'. Class definitions are automatically in strict mode." },
+        A_class_declaration_without_the_default_modifier_must_have_a_name: { code: 1211, category: DiagnosticCategory.Error, key: "A class declaration without the 'default' modifier must have a name" },
         Duplicate_identifier_0: { code: 2300, category: DiagnosticCategory.Error, key: "Duplicate identifier '{0}'." },
         Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: { code: 2301, category: DiagnosticCategory.Error, key: "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor." },
         Static_members_cannot_reference_class_type_parameters: { code: 2302, category: DiagnosticCategory.Error, key: "Static members cannot reference class type parameters." },

src/compiler/diagnosticMessages.json

@@ -659,9 +659,13 @@
         "category": "Error",
         "code": 1209
     },
+    "Invalid use of '{0}'. Class definitions are automatically in strict mode.": {
+        "category": "Error",
+        "code":  1210
+    },
     "A class declaration without the 'default' modifier must have a name": {
         "category": "Error",
-        "code": 1210
+        "code": 1211
     },
     "Duplicate identifier '{0}'.": {
         "category": "Error",

src/compiler/emitter.ts

@@ -23,6 +23,33 @@ module ts {
     // @internal
     // targetSourceFile is when users only want one file in entire project to be emitted. This is used in compileOnSave feature
     export function emitFiles(resolver: EmitResolver, host: EmitHost, targetSourceFile: SourceFile): EmitResult {
+        // emit output for the __extends helper function
+        const extendsHelper = `
+var __extends = this.__extends || function (d, b) {
+    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
+    function __() { this.constructor = d; }
+    __.prototype = b.prototype;
+    d.prototype = new __();
+};`;
+
+        // emit output for the __decorate helper function
+        const decorateHelper = `
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};`;
+
+        // emit output for the __metadata helper function
+        const metadataHelper = `
+var __metadata = this.__metadata || (typeof Reflect === "object" && Reflect.metadata) || function () { };`;
+
+        // emit output for the __param helper function
+        const paramHelper = `
+var __param = this.__param || function(index, decorator) { return function (target, key) { decorator(target, key, index); } };`;
+
         let compilerOptions = host.getCompilerOptions();
         let languageVersion = compilerOptions.target || ScriptTarget.ES3;
         let sourceMapDataList: SourceMapData[] = compilerOptions.sourceMap ? [] : undefined;
@@ -98,6 +125,7 @@ module ts {
 
             let extendsEmitted = false;
             let decorateEmitted = false;
+            let paramEmitted = false;
             let tempFlags = 0;
             let tempVariables: Identifier[];
             let tempParameters: Identifier[];
@@ -769,27 +797,34 @@ module ts {
                 }
             }
 
-            function emitList(nodes: Node[], start: number, count: number, multiLine: boolean, trailingComma: boolean) {
+            function emitList<TNode extends Node>(nodes: TNode[], start: number, count: number, multiLine: boolean, trailingComma: boolean, leadingComma?: boolean, noTrailingNewLine?: boolean, emitNode?: (node: TNode) => void): number {
+                if (!emitNode) {
+                    emitNode = emit;
+                }
+
                 for (let i = 0; i < count; i++) {
                     if (multiLine) {
-                        if (i) {
+                        if (i || leadingComma) {
                             write(",");
                         }
                         writeLine();
                     }
                     else {
-                        if (i) {
+                        if (i || leadingComma) {
                             write(", ");
                         }
                     }
-                    emit(nodes[start + i]);
+                    emitNode(nodes[start + i]);
+                    leadingComma = true;
                 }
                 if (trailingComma) {
                     write(",");
                 }
-                if (multiLine) {
+                if (multiLine && !noTrailingNewLine) {
                     writeLine();
                 }
+
+                return count;
             }
 
             function emitCommaList(nodes: Node[]) {
@@ -1109,9 +1144,7 @@ module ts {
                             return;
                         }
 
-                        let generatedVariable = createTempVariable(TempFlags.Auto);
-                        generatedName = generatedVariable.text;
-                        recordTempDeclaration(generatedVariable);
+                        generatedName = createAndRecordTempVariable(TempFlags.Auto).text;
                         computedPropertyNamesToGeneratedNames[node.id] = generatedName;
                         write(generatedName);
                         write(" = ");
@@ -3199,28 +3232,49 @@ module ts {
                 }
             }
 
-            function emitMemberAssignments(node: ClassLikeDeclaration, staticFlag: NodeFlags) {
-                forEach(node.members, member => {
-                    if (member.kind === SyntaxKind.PropertyDeclaration && (member.flags & NodeFlags.Static) === staticFlag && (<PropertyDeclaration>member).initializer) {
-                        writeLine();
-                        emitLeadingComments(member);
-                        emitStart(member);
-                        emitStart((<PropertyDeclaration>member).name);
-                        if (staticFlag) {
-                            emitDeclarationName(node);
-                        }
-                        else {
-                            write("this");
-                        }
-                        emitMemberAccessForPropertyName((<PropertyDeclaration>member).name);
-                        emitEnd((<PropertyDeclaration>member).name);
-                        write(" = ");
-                        emit((<PropertyDeclaration>member).initializer);
-                        write(";");
-                        emitEnd(member);
-                        emitTrailingComments(member);
+            function getInitializedProperties(node: ClassLikeDeclaration, static: boolean) {
+                let properties: PropertyDeclaration[] = [];
+                for (let member of node.members) {
+                    if (member.kind === SyntaxKind.PropertyDeclaration && static === ((member.flags & NodeFlags.Static) !== 0) && (<PropertyDeclaration>member).initializer) {
+                        properties.push(<PropertyDeclaration>member);
                     }
-                });
+                }
+
+                return properties;
+            }
+
+            function emitPropertyDeclarations(node: ClassLikeDeclaration, properties: PropertyDeclaration[]) {
+                for (let property of properties) {
+                    emitPropertyDeclaration(node, property);
+                }
+            }
+
+            function emitPropertyDeclaration(node: ClassLikeDeclaration, property: PropertyDeclaration, receiver?: Identifier, isExpression?: boolean) {
+                writeLine();
+                emitLeadingComments(property);
+                emitStart(property);
+                emitStart(property.name);
+                if (receiver) {
+                    emit(receiver);
+                }
+                else {
+                    if (property.flags & NodeFlags.Static) {
+                        emitDeclarationName(node);
+                    }
+                    else {
+                        write("this");
+                    }
+                }
+                emitMemberAccessForPropertyName(property.name);
+                emitEnd(property.name);
+                write(" = ");
+                emit(property.initializer);
+                if (!isExpression) {
+                    write(";");
+                }
+
+                emitEnd(property);
+                emitTrailingComments(property);
             }
 
             function emitMemberFunctionsForES5AndLower(node: ClassLikeDeclaration) {
@@ -3338,6 +3392,14 @@ module ts {
                 tempVariables = undefined;
                 tempParameters = undefined;
 
+                emitConstructorWorker(node, baseTypeElement);
+
+                tempFlags = saveTempFlags;
+                tempVariables = saveTempVariables;
+                tempParameters = saveTempParameters;
+            }
+
+            function emitConstructorWorker(node: ClassLikeDeclaration, baseTypeElement: HeritageClauseElement) {
                 // Check if we have property assignment inside class declaration.
                 // If there is property assignment, we need to emit constructor whether users define it or not
                 // If there is no property assignment, we can omit constructor if users do not define it
@@ -3425,7 +3487,7 @@ module ts {
                         emitEnd(baseTypeElement);
                     }
                 }
-                emitMemberAssignments(node, /*staticFlag*/0);
+                emitPropertyDeclarations(node, getInitializedProperties(node, /*static:*/ false));
                 if (ctor) {
                     var statements: Node[] = (<Block>ctor.body).statements;
                     if (superCall) {
@@ -3445,10 +3507,6 @@ module ts {
                 if (ctor) {
                     emitTrailingComments(ctor);
                 }
-
-                tempFlags = saveTempFlags;
-                tempVariables = saveTempVariables;
-                tempParameters = saveTempParameters;
             }
 
             function emitClassExpression(node: ClassExpression) {
@@ -3540,6 +3598,29 @@ module ts {
                     }
                 }
 
+                // If the class has static properties, and it's a class expression, then we'll need
+                // to specialize the emit a bit.  for a class expression of the form: 
+                //
+                //      class C { static a = 1; static b = 2; ... } 
+                //
+                // We'll emit:
+                //
+                //      (_temp = class C { ... }, _temp.a = 1, _temp.b = 2, _temp)
+                //
+                // This keeps the expression as an expression, while ensuring that the static parts
+                // of it have been initialized by the time it is used.
+                let staticProperties = getInitializedProperties(node, /*static:*/ true);
+                let isClassExpressionWithStaticProperties = staticProperties.length > 0 && node.kind === SyntaxKind.ClassExpression;
+                let tempVariable: Identifier;
+
+                if (isClassExpressionWithStaticProperties) {
+                    tempVariable = createAndRecordTempVariable(TempFlags.Auto);
+                    write("(");
+                    increaseIndent();
+                    emit(tempVariable);
+                    write(" = ")
+                }
+
                 write("class");
 
                 // check if this is an "export default class" as it may not have a name. Do not emit the name if the class is decorated.
@@ -3590,9 +3671,24 @@ module ts {
                 // From ES6 specification:
                 //      HasLexicalDeclaration (N) : Determines if the argument identifier has a binding in this environment record that was created using
                 //                                  a lexical declaration such as a LexicalDeclaration or a ClassDeclaration.
-                writeLine();
-                emitMemberAssignments(node, NodeFlags.Static);
-                emitDecoratorsOfClass(node);
+
+                if (isClassExpressionWithStaticProperties) {
+                    for (var property of staticProperties) {
+                        write(",");
+                        writeLine();
+                        emitPropertyDeclaration(node, property, /*receiver:*/ tempVariable, /*isExpression:*/ true);
+                    }
+                    write(",");
+                    writeLine();
+                    emit(tempVariable);
+                    decreaseIndent();
+                    write(")");
+                }
+                else {
+                    writeLine();
+                    emitPropertyDeclarations(node, staticProperties);
+                    emitDecoratorsOfClass(node);
+                }
 
                 // If this is an exported class, but not on the top level (i.e. on an internal
                 // module), export it
@@ -3648,7 +3744,7 @@ module ts {
                 writeLine();
                 emitConstructor(node, baseTypeNode);
                 emitMemberFunctionsForES5AndLower(node);
-                emitMemberAssignments(node, NodeFlags.Static);
+                emitPropertyDeclarations(node, getInitializedProperties(node, /*static:*/ true));
                 writeLine();
                 emitDecoratorsOfClass(node);
                 writeLine();
@@ -3700,12 +3796,12 @@ module ts {
             }
 
             function emitDecoratorsOfConstructor(node: ClassLikeDeclaration) {
+                let decorators = node.decorators;
                 let constructor = getFirstConstructorWithBody(node);
-                if (constructor) {
-                    emitDecoratorsOfParameters(node, constructor);
-                }
+                let hasDecoratedParameters = constructor && forEach(constructor.parameters, nodeIsDecorated);
 
-                if (!nodeIsDecorated(node)) {
+                // skip decoration of the constructor if neither it nor its parameters are decorated
+                if (!decorators && !hasDecoratedParameters) {
                     return;
                 }
 
@@ -3723,8 +3819,23 @@ module ts {
                 writeLine();
                 emitStart(node);
                 emitDeclarationName(node);
-                write(" = ");
-                emitDecorateStart(node.decorators);
+                write(" = __decorate([");
+                increaseIndent();
+                writeLine();
+
+                let decoratorCount = decorators ? decorators.length : 0;
+                let argumentsWritten = emitList(decorators, 0, decoratorCount, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ false, /*noTrailingNewLine*/ true, decorator => {
+                    emitStart(decorator);
+                    emit(decorator.expression);
+                    emitEnd(decorator);
+                });
+
+                argumentsWritten += emitDecoratorsOfParameters(constructor, /*leadingComma*/ argumentsWritten > 0);
+                emitSerializedTypeMetadata(node, /*leadingComma*/ argumentsWritten >= 0);
+
+                decreaseIndent();
+                writeLine();
+                write("], ");
                 emitDeclarationName(node);
                 write(");");
                 emitEnd(node);
@@ -3732,72 +3843,80 @@ module ts {
             }
 
             function emitDecoratorsOfMembers(node: ClassLikeDeclaration, staticFlag: NodeFlags) {
-                forEach(node.members, member => {
+                for (let member of node.members) {
+                    // only emit members in the correct group
                     if ((member.flags & NodeFlags.Static) !== staticFlag) {
-                        return;
+                        continue;
                     }
 
+                    // skip members that cannot be decorated (such as the constructor)
+                    if (!nodeCanBeDecorated(member)) {
+                        continue;
+                    }
+
+                    // skip a member if it or any of its parameters are not decorated
+                    if (!nodeOrChildIsDecorated(member)) {
+                        continue;
+                    }
+
+                    // skip an accessor declaration if it is not the first accessor
                     let decorators: NodeArray<Decorator>;
-                    switch (member.kind) {
-                        case SyntaxKind.MethodDeclaration:
-                            // emit decorators of the method's parameters
-                            emitDecoratorsOfParameters(node, <MethodDeclaration>member);
-                            decorators = member.decorators;
-                            break;
+                    let functionLikeMember: FunctionLikeDeclaration;
+                    if (isAccessor(member)) {
+                        let accessors = getAllAccessorDeclarations(node.members, <AccessorDeclaration>member);
+                        if (member !== accessors.firstAccessor) {
+                            continue;
+                        }
 
-                        case SyntaxKind.GetAccessor:
-                        case SyntaxKind.SetAccessor:
-                            let accessors = getAllAccessorDeclarations(node.members, <AccessorDeclaration>member);
-                            if (member !== accessors.firstAccessor) {
-                                // skip the second accessor as we processed it with the first.
-                                return;
-                            }
+                        // get the decorators from the first accessor with decorators
+                        decorators = accessors.firstAccessor.decorators;
+                        if (!decorators && accessors.secondAccessor) {
+                            decorators = accessors.secondAccessor.decorators;
+                        }
 
-                            if (accessors.setAccessor) {
-                                // emit decorators of the set accessor parameter
-                                emitDecoratorsOfParameters(node, <AccessorDeclaration>accessors.setAccessor);
-                            }
-
-                            // get the decorators from the first decorated accessor.
-                            decorators = accessors.firstAccessor.decorators;
-                            if (!decorators && accessors.secondAccessor) {
-                                decorators = accessors.secondAccessor.decorators;
-                            }
-                            break;
-
-                        case SyntaxKind.PropertyDeclaration:
-                            decorators = member.decorators;
-                            break;
-
-                        default:
-                            // Constructor cannot be decorated, and its parameters are handled in emitDecoratorsOfConstructor
-                            // Other members (i.e. IndexSignature) cannot be decorated.
-                            return;
+                        // we only decorate parameters of the set accessor
+                        functionLikeMember = accessors.setAccessor;
                     }
+                    else {
+                        decorators = member.decorators;
 
-                    if (!decorators) {
-                        return;
+                        // we only decorate the parameters here if this is a method
+                        if (member.kind === SyntaxKind.MethodDeclaration) {
+                            functionLikeMember = <MethodDeclaration>member;
+                        }
                     }
 
                     // Emit the call to __decorate. Given the following:
                     //
                     //   class C {
-                    //     @dec method() {}
+                    //     @dec method(@dec2 x) {}
                     //     @dec get accessor() {}
                     //     @dec prop;
                     //   }
                     //
                     // The emit for a method is:
                     //
-                    //   Object.defineProperty(C.prototype, "method", __decorate([dec], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
+                    //   Object.defineProperty(C.prototype, "method", 
+                    //       __decorate([
+                    //           dec,
+                    //           __param(0, dec2),
+                    //           __metadata("design:type", Function),
+                    //           __metadata("design:paramtypes", [Object]),
+                    //           __metadata("design:returntype", void 0)
+                    //       ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
                     // 
                     // The emit for an accessor is:
                     //
-                    //   Object.defineProperty(C.prototype, "accessor", __decorate([dec], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
+                    //   Object.defineProperty(C.prototype, "accessor", 
+                    //       __decorate([
+                    //           dec
+                    //       ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
                     //
                     // The emit for a property is:
                     //
-                    //   __decorate([dec], C.prototype, "prop");
+                    //   __decorate([
+                    //       dec
+                    //   ], C.prototype, "prop");
                     //
 
                     writeLine();
@@ -3809,10 +3928,28 @@ module ts {
                         write(", ");
                         emitExpressionForPropertyName(member.name);
                         emitEnd(member.name);
-                        write(", ");
+                        write(",");
+                        increaseIndent();
+                        writeLine();
                     }
 
-                    emitDecorateStart(decorators);
+                    write("__decorate([");
+                    increaseIndent();
+                    writeLine();
+
+                    let decoratorCount = decorators ? decorators.length : 0;
+                    let argumentsWritten = emitList(decorators, 0, decoratorCount, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ false, /*noTrailingNewLine*/ true, decorator => {
+                        emitStart(decorator);
+                        emit(decorator.expression);
+                        emitEnd(decorator);
+                    });
+
+                    argumentsWritten += emitDecoratorsOfParameters(functionLikeMember, argumentsWritten > 0);
+                    emitSerializedTypeMetadata(member, argumentsWritten > 0);
+
+                    decreaseIndent();
+                    writeLine();
+                    write("], ");
                     emitStart(member.name);
                     emitClassMemberPrefix(node, member);
                     write(", ");
@@ -3827,78 +3964,150 @@ module ts {
                         emitExpressionForPropertyName(member.name);
                         emitEnd(member.name);
                         write("))");
+                        decreaseIndent();
                     }
 
                     write(");");
                     emitEnd(member);
                     writeLine();
-                });
-            }
-            
-            function emitDecoratorsOfParameters(node: ClassLikeDeclaration, member: FunctionLikeDeclaration) {
-                forEach(member.parameters, (parameter, parameterIndex) => {
-                    if (!nodeIsDecorated(parameter)) {
-                        return;
-                    }
-
-                    // Emit the decorators for a parameter. Given the following:
-                    //
-                    //   class C {
-                    //     constructor(@dec p) { }
-                    //     method(@dec p) { }
-                    //     set accessor(@dec value) { }
-                    //   }
-                    //
-                    // The emit for a constructor is:
-                    //
-                    //   __decorate([dec], C, void 0, 0);
-                    //
-                    // The emit for a parameter is:
-                    //
-                    //   __decorate([dec], C.prototype, "method", 0);
-                    //
-                    // The emit for an accessor is:
-                    //
-                    //   __decorate([dec], C.prototype, "accessor", 0);
-                    //
-
-                    writeLine();
-                    emitStart(parameter);
-                    emitDecorateStart(parameter.decorators);
-                    emitStart(parameter.name);
-
-                    if (member.kind === SyntaxKind.Constructor) {
-                        emitDeclarationName(node);
-                        write(", void 0");
-                    }
-                    else {
-                        emitClassMemberPrefix(node, member);
-                        write(", ");
-                        emitExpressionForPropertyName(member.name);
-                    }
-
-                    write(", ");
-                    write(String(parameterIndex));
-                    emitEnd(parameter.name);
-                    write(");");
-                    emitEnd(parameter);
-                    writeLine();
-                });
-            }
-
-            function emitDecorateStart(decorators: Decorator[]): void {
-                write("__decorate([");
-                let decoratorCount = decorators.length;
-                for (let i = 0; i < decoratorCount; i++) {
-                    if (i > 0) {
-                        write(", ");
-                    }
-                    let decorator = decorators[i];
-                    emitStart(decorator);
-                    emit(decorator.expression);
-                    emitEnd(decorator);
                 }
-                write("], ");
+            }
+
+            function emitDecoratorsOfParameters(node: FunctionLikeDeclaration, leadingComma: boolean): number {
+                let argumentsWritten = 0;
+                if (node) {
+                    let parameterIndex = 0;
+                    for (let parameter of node.parameters) {
+                        if (nodeIsDecorated(parameter)) {
+                            let decorators = parameter.decorators;
+                            argumentsWritten += emitList(decorators, 0, decorators.length, /*multiLine*/ true, /*trailingComma*/ false, /*leadingComma*/ leadingComma, /*noTrailingNewLine*/ true, decorator => {
+                                emitStart(decorator);
+                                write(`__param(${parameterIndex}, `);
+                                emit(decorator.expression);
+                                write(")");
+                                emitEnd(decorator);
+                            });
+                            leadingComma = true;
+                        }
+                        ++parameterIndex;
+                    }
+                }
+                return argumentsWritten;
+            }
+
+            function shouldEmitTypeMetadata(node: Declaration): boolean {
+                // This method determines whether to emit the "design:type" metadata based on the node's kind.
+                // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata 
+                // compiler option is set.
+                switch (node.kind) {
+                    case SyntaxKind.MethodDeclaration:
+                    case SyntaxKind.GetAccessor:
+                    case SyntaxKind.SetAccessor:
+                    case SyntaxKind.PropertyDeclaration:
+                        return true;
+                }
+
+                return false;
+            }
+
+            function shouldEmitReturnTypeMetadata(node: Declaration): boolean {
+                // This method determines whether to emit the "design:returntype" metadata based on the node's kind.
+                // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata 
+                // compiler option is set.
+                switch (node.kind) {
+                    case SyntaxKind.MethodDeclaration:
+                        return true;
+                }
+                return false;
+            }
+
+            function shouldEmitParamTypesMetadata(node: Declaration): boolean {
+                // This method determines whether to emit the "design:paramtypes" metadata based on the node's kind.
+                // The caller should have already tested whether the node has decorators and whether the emitDecoratorMetadata 
+                // compiler option is set.
+                switch (node.kind) {
+                    case SyntaxKind.ClassDeclaration:
+                    case SyntaxKind.MethodDeclaration:
+                    case SyntaxKind.SetAccessor:
+                        return true;
+                }
+                return false;
+            }
+
+            function emitSerializedTypeMetadata(node: Declaration, writeComma: boolean): number {
+                // This method emits the serialized type metadata for a decorator target.
+                // The caller should have already tested whether the node has decorators.
+                let argumentsWritten = 0;
+                if (compilerOptions.emitDecoratorMetadata) {
+                    if (shouldEmitTypeMetadata(node)) {
+                        var serializedType = resolver.serializeTypeOfNode(node, getGeneratedNameForNode);
+                        if (serializedType) {
+                            if (writeComma) {
+                                write(", ");
+                            }
+                            writeLine();
+                            write("__metadata('design:type', ");
+                            emitSerializedType(node, serializedType);
+                            write(")");
+                            argumentsWritten++;
+                        }
+                    }
+                    if (shouldEmitParamTypesMetadata(node)) {
+                        var serializedTypes = resolver.serializeParameterTypesOfNode(node, getGeneratedNameForNode);
+                        if (serializedTypes) {
+                            if (writeComma || argumentsWritten) {
+                                write(", ");
+                            }
+                            writeLine();
+                            write("__metadata('design:paramtypes', [");
+                            for (var i = 0; i < serializedTypes.length; ++i) {
+                                if (i > 0) {
+                                    write(", ");
+                                }
+                                emitSerializedType(node, serializedTypes[i]);
+                            }
+                            write("])");
+                            argumentsWritten++;
+                        }
+                    }
+                    if (shouldEmitReturnTypeMetadata(node)) {
+                        var serializedType = resolver.serializeReturnTypeOfNode(node, getGeneratedNameForNode);
+                        if (serializedType) {
+                            if (writeComma || argumentsWritten) {
+                                write(", ");
+                            }
+                            writeLine();
+                            write("__metadata('design:returntype', ");
+                            emitSerializedType(node, serializedType);
+                            write(")");
+                            argumentsWritten++;
+                        }
+                    }
+                }
+                return argumentsWritten;
+            }
+
+            function serializeTypeNameSegment(location: Node, path: string[], index: number): string {
+                switch (index) {
+                    case 0:
+                        return `typeof ${path[index]} !== 'undefined' && ${path[index]}`;
+                    case 1:
+                        return `${serializeTypeNameSegment(location, path, index - 1) }.${path[index]}`;
+                    default:
+                        let temp = createAndRecordTempVariable(TempFlags.Auto).text;
+                        return `(${temp} = ${serializeTypeNameSegment(location, path, index - 1) }) && ${temp}.${path[index]}`;
+                }
+            }
+
+            function emitSerializedType(location: Node, name: string | string[]): void {
+                if (typeof name === "string") {
+                    write(name);
+                    return;
+                }
+                else {
+                    Debug.assert(name.length > 0, "Invalid serialized type name");
+                    write(`(${serializeTypeNameSegment(location, name, name.length - 1) }) || Object`);
+                }
             }
 
             function emitInterfaceDeclaration(node: InterfaceDeclaration) {
@@ -4531,7 +4740,7 @@ module ts {
                 return statements.length;
             }
 
-            function writeHelper(text: string): void {
+            function writeLines(text: string): void {
                 let lines = text.split(/\r\n|\r|\n/g);
                 for (let i = 0; i < lines.length; ++i) {
                     let line = lines[i];
@@ -4550,41 +4759,25 @@ module ts {
                 // emit prologue directives prior to __extends
                 var startIndex = emitDirectivePrologues(node.statements, /*startWithNewLine*/ false);
                 // Only Emit __extends function when target ES5.
-                // For target ES6 and above, we can emit classDeclaration as if.
+                // For target ES6 and above, we can emit classDeclaration as is.
                 if ((languageVersion < ScriptTarget.ES6) && (!extendsEmitted && resolver.getNodeCheckFlags(node) & NodeCheckFlags.EmitExtends)) {
-                    writeLine();
-                    write("var __extends = this.__extends || function (d, b) {");
-                    increaseIndent();
-                    writeLine();
-                    write("for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];");
-                    writeLine();
-                    write("function __() { this.constructor = d; }");
-                    writeLine();
-                    write("__.prototype = b.prototype;");
-                    writeLine();
-                    write("d.prototype = new __();");
-                    decreaseIndent();
-                    writeLine();
-                    write("};");
+                    writeLines(extendsHelper);
                     extendsEmitted = true;
                 }
+
                 if (!decorateEmitted && resolver.getNodeCheckFlags(node) & NodeCheckFlags.EmitDecorate) {
-                    writeHelper(`
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
-    }
-    return value;
-};`);
+                    writeLines(decorateHelper);
+                    if (compilerOptions.emitDecoratorMetadata) {
+                        writeLines(metadataHelper);
+                    }
                     decorateEmitted = true;
                 }
+
+                if (!paramEmitted && resolver.getNodeCheckFlags(node) & NodeCheckFlags.EmitParam) {
+                    writeLines(paramHelper);
+                    paramEmitted = true;
+                }
+
                 if (isExternalModule(node)) {
                     if (languageVersion >= ScriptTarget.ES6) {
                         emitES6Module(node, startIndex);

src/compiler/parser.ts

@@ -4756,9 +4756,7 @@ module ts {
         function parseClassDeclarationOrExpression(fullStart: number, decorators: NodeArray<Decorator>, modifiers: ModifiersArray, kind: SyntaxKind): ClassLikeDeclaration {
             // In ES6 specification, All parts of a ClassDeclaration or a ClassExpression are strict mode code
             let savedStrictModeContext = inStrictModeContext();
-            if (languageVersion >= ScriptTarget.ES6) {
-                setStrictModeContext(true);
-            }
+            setStrictModeContext(true);
 
             var node = <ClassLikeDeclaration>createNode(kind, fullStart);
             node.decorators = decorators;

src/compiler/types.ts

@@ -1255,6 +1255,9 @@ module ts {
         getConstantValue(node: EnumMember | PropertyAccessExpression | ElementAccessExpression): number;
         resolvesToSomeValue(location: Node, name: string): boolean;
         getBlockScopedVariableId(node: Identifier): number;
+        serializeTypeOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): string | string[];
+        serializeParameterTypesOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): (string | string[])[];
+        serializeReturnTypeOfNode(node: Node, getGeneratedNameForNode: (Node: Node) => string): string | string[];
     }
 
     export const enum SymbolFlags {
@@ -1380,6 +1383,7 @@ module ts {
         EnumValuesComputed          = 0x00000080,
         BlockScopedBindingInLoop    = 0x00000100,
         EmitDecorate                = 0x00000200,  // Emit __decorate
+        EmitParam                   = 0x00000400,  // Emit __param helper for decorators
     }
 
     export interface NodeLinks {
@@ -1605,6 +1609,7 @@ module ts {
         version?: boolean;
         watch?: boolean;
         separateCompilation?: boolean;
+        emitDecoratorMetadata?: boolean;
         /* @internal */ stripInternal?: boolean;
         [option: string]: string | number | boolean;
     }

src/compiler/utilities.ts

@@ -449,6 +449,18 @@ module ts {
         return false;
     }
 
+    export function isAccessor(node: Node): boolean {
+        if (node) {
+            switch (node.kind) {
+                case SyntaxKind.GetAccessor:
+                case SyntaxKind.SetAccessor:
+                    return true;
+            }
+        }
+
+        return false;
+    }
+
     export function isFunctionLike(node: Node): boolean {
         if (node) {
             switch (node.kind) {

src/lib/core.d.ts

@@ -1168,4 +1168,4 @@ interface TypedPropertyDescriptor<T> {
 declare type ClassDecorator = <TFunction extends Function>(target: TFunction) => TFunction | void;
 declare type PropertyDecorator = (target: Object, propertyKey: string | symbol) => void;
 declare type MethodDecorator = <T>(target: Object, propertyKey: string | symbol, descriptor: TypedPropertyDescriptor<T>) => TypedPropertyDescriptor<T> | void;
-declare type ParameterDecorator = (target: Function, propertyKey: string | symbol, parameterIndex: number) => void;
+declare type ParameterDecorator = (target: Object, propertyKey: string | symbol, parameterIndex: number) => void;

src/lib/es6.d.ts

@@ -3513,27 +3513,27 @@ interface ProxyHandler<T> {
 
 interface ProxyConstructor {
     revocable<T>(target: T, handler: ProxyHandler<T>): { proxy: T; revoke: () => void; };
-    new <T>(target: T, handeler: ProxyHandler<T>): T
+    new <T>(target: T, handler: ProxyHandler<T>): T
 }
 declare var Proxy: ProxyConstructor;
 
-declare var Reflect: {
-    apply(target: Function, thisArgument: any, argumentsList: ArrayLike<any>): any;
-    construct(target: Function, argumentsList: ArrayLike<any>): any;
-    defineProperty(target: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): boolean;
-    deleteProperty(target: any, propertyKey: PropertyKey): boolean;
-    enumerate(target: any): IterableIterator<any>;
-    get(target: any, propertyKey: PropertyKey, receiver?: any): any;
-    getOwnPropertyDescriptor(target: any, propertyKey: PropertyKey): PropertyDescriptor;
-    getPrototypeOf(target: any): any;
-    has(target: any, propertyKey: string): boolean;
-    has(target: any, propertyKey: symbol): boolean;
-    isExtensible(target: any): boolean;
-    ownKeys(target: any): Array<PropertyKey>;
-    preventExtensions(target: any): boolean;
-    set(target: any, propertyKey: PropertyKey, value: any, receiver? :any): boolean;
-    setPrototypeOf(target: any, proto: any): boolean;
-};
+declare module Reflect {
+    function apply(target: Function, thisArgument: any, argumentsList: ArrayLike<any>): any;
+    function construct(target: Function, argumentsList: ArrayLike<any>): any;
+    function defineProperty(target: any, propertyKey: PropertyKey, attributes: PropertyDescriptor): boolean;
+    function deleteProperty(target: any, propertyKey: PropertyKey): boolean;
+    function enumerate(target: any): IterableIterator<any>;
+    function get(target: any, propertyKey: PropertyKey, receiver?: any): any;
+    function getOwnPropertyDescriptor(target: any, propertyKey: PropertyKey): PropertyDescriptor;
+    function getPrototypeOf(target: any): any;
+    function has(target: any, propertyKey: string): boolean;
+    function has(target: any, propertyKey: symbol): boolean;
+    function isExtensible(target: any): boolean;
+    function ownKeys(target: any): Array<PropertyKey>;
+    function preventExtensions(target: any): boolean;
+    function set(target: any, propertyKey: PropertyKey, value: any, receiver? :any): boolean;
+    function setPrototypeOf(target: any, proto: any): boolean;
+}
 
 /**
  * Represents the completion of an asynchronous operation

src/server/client.ts

@@ -68,12 +68,12 @@ module ts.server {
             };
         }
 
-        private processRequest<T extends protocol.Request>(command: string, arguments?: any): T {
+        private processRequest<T extends protocol.Request>(command: string, args?: any): T {
             var request: protocol.Request = {
                 seq: this.sequence++,
                 type: "request",
-                command: command,
-                arguments: arguments
+                arguments: args,
+                command
             };
 
             this.writeMessage(JSON.stringify(request));

tests/baselines/reference/classExpressionWithDecorator1.errors.txt

@@ -0,0 +1,10 @@
+tests/cases/compiler/classExpressionWithDecorator1.ts(1,9): error TS1109: Expression expected.
+tests/cases/compiler/classExpressionWithDecorator1.ts(1,10): error TS2304: Cannot find name 'decorate'.
+
+
+==== tests/cases/compiler/classExpressionWithDecorator1.ts (2 errors) ====
+    var v = @decorate class C { static p = 1 };
+            ~
+!!! error TS1109: Expression expected.
+             ~~~~~~~~
+!!! error TS2304: Cannot find name 'decorate'.

tests/baselines/reference/classExpressionWithDecorator1.js

@@ -0,0 +1,22 @@
+//// [classExpressionWithDecorator1.ts]
+var v = @decorate class C { static p = 1 };
+
+//// [classExpressionWithDecorator1.js]
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};
+var v = ;
+var C = (function () {
+    function C() {
+    }
+    C.p = 1;
+    C = __decorate([
+        decorate
+    ], C);
+    return C;
+})();
+;

tests/baselines/reference/classExpressionWithStaticProperties1.errors.txt

@@ -0,0 +1,7 @@
+tests/cases/compiler/classExpressionWithStaticProperties1.ts(1,15): error TS9003: 'class' expressions are not currently supported.
+
+
+==== tests/cases/compiler/classExpressionWithStaticProperties1.ts (1 errors) ====
+    var v = class C { static a = 1; static b = 2 };
+                  ~
+!!! error TS9003: 'class' expressions are not currently supported.

tests/baselines/reference/classExpressionWithStaticProperties1.js

@@ -0,0 +1,11 @@
+//// [classExpressionWithStaticProperties1.ts]
+var v = class C { static a = 1; static b = 2 };
+
+//// [classExpressionWithStaticProperties1.js]
+var v = (function () {
+    function C() {
+    }
+    C.a = 1;
+    C.b = 2;
+    return C;
+})();

tests/baselines/reference/classExpressionWithStaticProperties2.errors.txt

@@ -0,0 +1,7 @@
+tests/cases/compiler/classExpressionWithStaticProperties2.ts(1,15): error TS9003: 'class' expressions are not currently supported.
+
+
+==== tests/cases/compiler/classExpressionWithStaticProperties2.ts (1 errors) ====
+    var v = class C { static a = 1; static b };
+                  ~
+!!! error TS9003: 'class' expressions are not currently supported.

tests/baselines/reference/classExpressionWithStaticProperties2.js

@@ -0,0 +1,10 @@
+//// [classExpressionWithStaticProperties2.ts]
+var v = class C { static a = 1; static b };
+
+//// [classExpressionWithStaticProperties2.js]
+var v = (function () {
+    function C() {
+    }
+    C.a = 1;
+    return C;
+})();

tests/baselines/reference/classExpressionWithStaticPropertiesES61.errors.txt

@@ -0,0 +1,7 @@
+tests/cases/compiler/classExpressionWithStaticPropertiesES61.ts(1,15): error TS9003: 'class' expressions are not currently supported.
+
+
+==== tests/cases/compiler/classExpressionWithStaticPropertiesES61.ts (1 errors) ====
+    var v = class C { static a = 1; static b = 2 };
+                  ~
+!!! error TS9003: 'class' expressions are not currently supported.

tests/baselines/reference/classExpressionWithStaticPropertiesES61.js

@@ -0,0 +1,10 @@
+//// [classExpressionWithStaticPropertiesES61.ts]
+var v = class C { static a = 1; static b = 2 };
+
+//// [classExpressionWithStaticPropertiesES61.js]
+var v = (_a = class C {
+    },
+    _a.a = 1,
+    _a.b = 2,
+    _a);
+var _a;

tests/baselines/reference/classExpressionWithStaticPropertiesES62.errors.txt

@@ -0,0 +1,7 @@
+tests/cases/compiler/classExpressionWithStaticPropertiesES62.ts(1,15): error TS9003: 'class' expressions are not currently supported.
+
+
+==== tests/cases/compiler/classExpressionWithStaticPropertiesES62.ts (1 errors) ====
+    var v = class C { static a = 1; static b };
+                  ~
+!!! error TS9003: 'class' expressions are not currently supported.

tests/baselines/reference/classExpressionWithStaticPropertiesES62.js

@@ -0,0 +1,9 @@
+//// [classExpressionWithStaticPropertiesES62.ts]
+var v = class C { static a = 1; static b };
+
+//// [classExpressionWithStaticPropertiesES62.js]
+var v = (_a = class C {
+    },
+    _a.a = 1,
+    _a);
+var _a;

tests/baselines/reference/collisionArgumentsClassConstructor.errors.txt

@@ -1,40 +1,89 @@
 tests/cases/compiler/collisionArgumentsClassConstructor.ts(3,28): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(3,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(4,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(8,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassConstructor.ts(8,17): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(9,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(13,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(14,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(20,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(25,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassConstructor.ts(30,17): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(30,24): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(31,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(35,24): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(36,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(41,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(44,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(47,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(51,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(52,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassConstructor.ts(53,25): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(53,28): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(54,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(59,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(60,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(61,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassConstructor.ts(61,17): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(62,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(67,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(68,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(69,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(70,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(75,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(76,31): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(79,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(80,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(84,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassConstructor.ts(85,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 
 
-==== tests/cases/compiler/collisionArgumentsClassConstructor.ts (5 errors) ====
+==== tests/cases/compiler/collisionArgumentsClassConstructor.ts (38 errors) ====
     // Constructors
     class c1 {
         constructor(i: number, ...arguments) { // error
                                ~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any[]; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     class c12 {
         constructor(arguments: number, ...rest) { // error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                     ~~~~~~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     class c1NoError {
         constructor(arguments: number) { // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     class c2 {
         constructor(...restParameters) {
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     class c2NoError {
         constructor() {
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
@@ -42,63 +91,113 @@ tests/cases/compiler/collisionArgumentsClassConstructor.ts(61,17): error TS2396:
         constructor(public arguments: number, ...restParameters) { //arguments is error
                     ~~~~~~~~~~~~~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+                           ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     class c3NoError {
         constructor(public arguments: number) { // no error
+                           ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     declare class c4 {
         constructor(i: number, ...arguments); // No error - no code gen
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     declare class c42 {
         constructor(arguments: number, ...rest); // No error - no code gen
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     declare class c4NoError {
         constructor(arguments: number);  // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     
     class c5 {
         constructor(i: number, ...arguments); // no codegen no error
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(i: string, ...arguments); // no codegen no error
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(i: any, ...arguments) { // error
                             ~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+                               ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any[]; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     class c52 {
         constructor(arguments: number, ...rest); // no codegen no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: string, ...rest); // no codegen no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: any, ...rest) { // error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                     ~~~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
             var arguments: any; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     class c5NoError {
         constructor(arguments: number); // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: string); // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: any) { // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     declare class c6 {
         constructor(i: number, ...arguments); // no codegen no error
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(i: string, ...arguments); // no codegen no error
+                                  ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     declare class c62 {
         constructor(arguments: number, ...rest); // no codegen no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: string, ...rest); // no codegen no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     
     declare class c6NoError {
         constructor(arguments: number); // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         constructor(arguments: string); // no error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }

tests/baselines/reference/collisionArgumentsClassMethod.errors.txt

@@ -1,63 +1,150 @@
 tests/cases/compiler/collisionArgumentsClassMethod.ts(2,27): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(2,30): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(3,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(5,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassMethod.ts(5,17): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(6,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(8,23): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(9,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(11,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(12,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassMethod.ts(13,23): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(13,26): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(14,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(16,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(17,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(18,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/compiler/collisionArgumentsClassMethod.ts(18,16): error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(19,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(21,22): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(22,22): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(23,22): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(24,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(29,30): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(30,17): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(31,23): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(33,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(34,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(35,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(36,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(37,22): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(38,22): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(43,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/compiler/collisionArgumentsClassMethod.ts(46,13): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 
 
-==== tests/cases/compiler/collisionArgumentsClassMethod.ts (4 errors) ====
+==== tests/cases/compiler/collisionArgumentsClassMethod.ts (33 errors) ====
     class c1 {
         public foo(i: number, ...arguments) { //arguments is error
                               ~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+                                 ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any[]; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public foo1(arguments: number, ...rest) { //arguments is error
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                     ~~~~~~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public fooNoError(arguments: number) { // no error
+                          ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public f4(i: number, ...arguments); // no codegen no error
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4(i: string, ...arguments); // no codegen no error
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4(i: any, ...arguments) { // error
                           ~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
+                             ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any[]; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public f41(arguments: number, ...rest); // no codegen no error
+                   ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f41(arguments: string, ...rest); // no codegen no error
+                   ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f41(arguments: any, ...rest) { // error
+                   ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                    ~~~~~~~~~~~~~~
 !!! error TS2396: Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters.
             var arguments: any; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public f4NoError(arguments: number); // no error
+                         ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4NoError(arguments: string); // no error
+                         ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4NoError(arguments: any) { // no error
+                         ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             var arguments: any; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }
     
     declare class c2 {
         public foo(i: number, ...arguments); // No error - no code gen
+                                 ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public foo1(arguments: number, ...rest); // No error - no code gen
+                    ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public fooNoError(arguments: number); // No error - no code gen
+                          ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     
         public f4(i: number, ...arguments); // no codegen no error
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4(i: string, ...arguments); // no codegen no error
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f41(arguments: number, ...rest); // no codegen no error
+                   ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f41(arguments: string, ...rest); // no codegen no error
+                   ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4NoError(arguments: number); // no error
+                         ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         public f4NoError(arguments: string); // no error
+                         ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
     }
     
     class c3 {
         public foo(...restParameters) {
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
         public fooNoError() {
             var arguments = 10; // no error
+                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         }
     }

tests/baselines/reference/computedPropertyNames3_ES5.errors.txt

@@ -1,12 +1,13 @@
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(4,12): error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(5,9): error TS2378: A 'get' accessor must return a value or consist of a single 'throw' statement.
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(5,9): error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
+tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(5,17): error TS1102: 'delete' cannot be called on an identifier in strict mode.
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(6,9): error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(7,16): error TS2378: A 'get' accessor must return a value or consist of a single 'throw' statement.
 tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(7,16): error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
 
 
-==== tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts (6 errors) ====
+==== tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts (7 errors) ====
     var id;
     class C {
         [0 + 1]() { }
@@ -18,6 +19,8 @@ tests/cases/conformance/es6/computedProperties/computedPropertyNames3_ES5.ts(7,1
 !!! error TS2378: A 'get' accessor must return a value or consist of a single 'throw' statement.
             ~~~~~~~~~~~
 !!! error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
+                    ~~
+!!! error TS1102: 'delete' cannot be called on an identifier in strict mode.
         set [[0, 1]](v) { }
             ~~~~~~~~
 !!! error TS2464: A computed property name must be of type 'string', 'number', 'symbol', or 'any'.

tests/baselines/reference/constructorStaticParamName.errors.txt

@@ -0,0 +1,12 @@
+tests/cases/compiler/constructorStaticParamName.ts(4,18): error TS1003: Identifier expected.
+
+
+==== tests/cases/compiler/constructorStaticParamName.ts (1 errors) ====
+    // static as constructor parameter name should only give error if 'use strict'
+    
+    class test {
+        constructor (static) { }
+                     ~~~~~~
+!!! error TS1003: Identifier expected.
+    }
+    

tests/baselines/reference/constructorStaticParamName.js

@@ -9,7 +9,7 @@ class test {
 //// [constructorStaticParamName.js]
 // static as constructor parameter name should only give error if 'use strict'
 var test = (function () {
-    function test(static) {
+    function test() {
     }
     return test;
 })();

tests/baselines/reference/constructorStaticParamName.types

@@ -1,10 +0,0 @@
-=== tests/cases/compiler/constructorStaticParamName.ts ===
-// static as constructor parameter name should only give error if 'use strict'
-
-class test {
->test : test
-
-    constructor (static) { }
->static : any
-}
-

tests/baselines/reference/constructorWithIncompleteTypeAnnotation.errors.txt

@@ -21,27 +21,47 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(47,17): error TS
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(49,13): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(53,13): error TS2304: Cannot find name 'console'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(58,5): error TS1128: Declaration or statement expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(65,29): error TS2355: A function whose declared type is neither 'void' nor 'any' must return a value or consist of a single 'throw' statement.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(69,13): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(72,37): error TS1127: Invalid character.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(81,13): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(89,23): error TS2364: Invalid left-hand side of assignment expression.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(90,13): error TS1109: Expression expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(94,17): error TS1134: Variable declaration expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(95,13): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(105,29): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(106,13): error TS1109: Expression expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,24): error TS2365: Operator '+' cannot be applied to types 'number' and 'boolean'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,24): error TS2304: Cannot find name 'any'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,30): error TS2304: Cannot find name 'bool'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,37): error TS2304: Cannot find name 'declare'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,47): error TS2304: Cannot find name 'constructor'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,61): error TS2304: Cannot find name 'get'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(108,67): error TS2304: Cannot find name 'implements'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(111,9): error TS1128: Declaration or statement expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(118,9): error TS2304: Cannot find name 'STATEMENTS'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(118,21): error TS1005: ',' expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(118,30): error TS1005: ';' expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(118,39): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(138,13): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(141,32): error TS1005: '{' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(143,13): error TS1005: 'try' expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(155,9): error TS1128: Declaration or statement expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(155,16): error TS2304: Cannot find name 'TYPES'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(155,23): error TS1005: ';' expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(155,32): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(159,24): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(159,30): error TS1005: '(' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(159,31): error TS2304: Cannot find name 'Property'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(166,13): error TS2365: Operator '+=' cannot be applied to types 'number' and 'void'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(176,9): error TS1128: Declaration or statement expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(176,16): error TS2304: Cannot find name 'OPERATOR'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(176,26): error TS1005: ';' expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(176,35): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(180,40): error TS2447: The '^' operator is not allowed for boolean types. Consider using '!==' instead.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(205,28): error TS1109: Expression expected.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(210,5): error TS1128: Declaration or statement expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(213,16): error TS2304: Cannot find name 'bool'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(218,10): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(218,29): error TS2304: Cannot find name 'yield'.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(218,36): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(223,23): error TS2304: Cannot find name 'bool'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(227,13): error TS1109: Expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(234,14): error TS1005: '{' expected.
@@ -49,7 +69,6 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,9): error TS
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,16): error TS2304: Cannot find name 'method1'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,24): error TS2304: Cannot find name 'val'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,27): error TS1005: ',' expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,28): error TS2304: Cannot find name 'number'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(235,36): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(238,9): error TS1128: Declaration or statement expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(238,16): error TS2304: Cannot find name 'method2'.
@@ -64,27 +83,23 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(256,9): error TS
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(256,16): error TS2304: Cannot find name 'Overloads'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(256,26): error TS2304: Cannot find name 'value'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(256,31): error TS1005: ',' expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(256,33): error TS2304: Cannot find name 'string'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,9): error TS1128: Declaration or statement expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,16): error TS2304: Cannot find name 'Overloads'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,27): error TS1135: Argument expression expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,33): error TS1005: '(' expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,35): error TS2304: Cannot find name 'string'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,43): error TS1109: Expression expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,52): error TS2304: Cannot find name 'string'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,60): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(257,65): error TS1109: Expression expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,9): error TS2304: Cannot find name 'public'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,16): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,16): error TS2304: Cannot find name 'DefaultValue'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,29): error TS2304: Cannot find name 'value'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,35): error TS1109: Expression expected.
-tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,37): error TS2304: Cannot find name 'string'.
+tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,37): error TS2322: Type 'string' is not assignable to type 'boolean'.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(259,55): error TS1005: ';' expected.
 tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS1128: Declaration or statement expected.
 
 
-==== tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts (84 errors) ====
+==== tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts (99 errors) ====
     declare module "fs" {
         export class File {
             constructor(filename: string);
@@ -199,6 +214,8 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
             /// </summary>
             /// <returns></returns>
             public VARIABLES(): number {
+                                ~~~~~~
+!!! error TS2355: A function whose declared type is neither 'void' nor 'any' must return a value or consist of a single 'throw' statement.
                 var local = Number.MAX_VALUE;
                 var min = Number.MIN_VALUE;
                 var inf = Number.NEGATIVE_INFINITY - 
@@ -238,7 +255,11 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
                 var constructor = 0;
                 var get = 0;
                 var implements = 0;
+                    ~~~~~~~~~~
+!!! error TS1134: Variable declaration expected.
                 var interface = 0;
+                ~~~
+!!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
                 var let = 0;
                 var module = 0;
                 var number = 0;
@@ -256,11 +277,23 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
 !!! error TS1109: Expression expected.
     
                 var sum3 = any + bool + declare + constructor + get + implements + interface + let + module + number + package + private + protected + public + set + static + string + yield;
-                           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-!!! error TS2365: Operator '+' cannot be applied to types 'number' and 'boolean'.
+                           ~~~
+!!! error TS2304: Cannot find name 'any'.
+                                 ~~~~
+!!! error TS2304: Cannot find name 'bool'.
+                                        ~~~~~~~
+!!! error TS2304: Cannot find name 'declare'.
+                                                  ~~~~~~~~~~~
+!!! error TS2304: Cannot find name 'constructor'.
+                                                                ~~~
+!!! error TS2304: Cannot find name 'get'.
+                                                                      ~~~~~~~~~~
+!!! error TS2304: Cannot find name 'implements'.
     
                 return 0;
             }
+            ~
+!!! error TS1128: Declaration or statement expected.
     
             /// <summary>
             /// Test different statements. Including if-else,swith,foreach,(un)checked,lock,using,try-catch-finally
@@ -268,6 +301,14 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
             /// <param name="i"></param>
             /// <returns></returns>
             STATEMENTS(i: number): number {
+            ~~~~~~~~~~
+!!! error TS2304: Cannot find name 'STATEMENTS'.
+                        ~
+!!! error TS1005: ',' expected.
+                                 ~
+!!! error TS1005: ';' expected.
+                                          ~
+!!! error TS1005: ';' expected.
                 var retVal = 0;
                 if (i == 1)
                     retVal = 1;
@@ -311,6 +352,14 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
             /// </summary>
             /// <returns></returns>
             public TYPES(): number {
+            ~~~~~~
+!!! error TS1128: Declaration or statement expected.
+                   ~~~~~
+!!! error TS2304: Cannot find name 'TYPES'.
+                          ~
+!!! error TS1005: ';' expected.
+                                   ~
+!!! error TS1005: ';' expected.
                 var retVal = 0;
                 var c = new CLASS();
                 var xx: IF = c;
@@ -340,6 +389,14 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
             ///// </summary>
             ///// <returns></returns>
             public OPERATOR(): number {
+            ~~~~~~
+!!! error TS1128: Declaration or statement expected.
+                   ~~~~~~~~
+!!! error TS2304: Cannot find name 'OPERATOR'.
+                             ~
+!!! error TS1005: ';' expected.
+                                      ~
+!!! error TS1005: ';' expected.
                 var a: number[] = [1, 2, 3, 4, 5, ];/*[] bug*/ // YES []
                 var i = a[1];/*[]*/
                 i = i + i - i * i / i % i & i | i ^ i;/*+ - * / % & | ^*/
@@ -378,6 +435,8 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
             }
     
         }
+        ~
+!!! error TS1128: Declaration or statement expected.
     
         interface IF {
             Foo(): bool;
@@ -390,10 +449,6 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
              case  d = () => {  yield  0; };
              ~~~~
 !!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-                                ~~~~~
-!!! error TS2304: Cannot find name 'yield'.
-                                       ~
-!!! error TS1005: ';' expected.
             public get Property() { return 0; }
             public Member() {
                 return 0;
@@ -425,8 +480,6 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
 !!! error TS2304: Cannot find name 'val'.
                               ~
 !!! error TS1005: ',' expected.
-                               ~~~~~~
-!!! error TS2304: Cannot find name 'number'.
                                        ~
 !!! error TS1005: ';' expected.
                 return val;
@@ -476,8 +529,6 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
 !!! error TS2304: Cannot find name 'value'.
                                   ~
 !!! error TS1005: ',' expected.
-                                    ~~~~~~
-!!! error TS2304: Cannot find name 'string'.
             public Overloads( while : string, ...rest: string[]) {  & 
             ~~~~~~
 !!! error TS1128: Declaration or statement expected.
@@ -487,20 +538,14 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
 !!! error TS1135: Argument expression expected.
                                     ~
 !!! error TS1005: '(' expected.
-                                      ~~~~~~
-!!! error TS2304: Cannot find name 'string'.
                                               ~~~
 !!! error TS1109: Expression expected.
-                                                       ~~~~~~
-!!! error TS2304: Cannot find name 'string'.
                                                                ~
 !!! error TS1005: ';' expected.
                                                                     ~
 !!! error TS1109: Expression expected.
     
             public DefaultValue(value?: string = "Hello") { }
-            ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
                    ~~~~~~~~~~~~
 !!! error TS1005: ';' expected.
                    ~~~~~~~~~~~~
@@ -510,7 +555,7 @@ tests/cases/compiler/constructorWithIncompleteTypeAnnotation.ts(261,1): error TS
                                       ~
 !!! error TS1109: Expression expected.
                                         ~~~~~~
-!!! error TS2304: Cannot find name 'string'.
+!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
                                                           ~
 !!! error TS1005: ';' expected.
         }

tests/baselines/reference/constructorWithIncompleteTypeAnnotation.js

@@ -342,6 +342,7 @@ var TypeScriptAllInOne;
 })(TypeScriptAllInOne || (TypeScriptAllInOne = {}));
 var BasicFeatures = (function () {
     function BasicFeatures() {
+        this.implements = 0;
     }
     /// <summary>
     /// Test various of variables. Including nullable,key world as variable,special format
@@ -374,120 +375,118 @@ var BasicFeatures = (function () {
         var declare = 0;
         var constructor = 0;
         var get = 0;
-        var implements = 0;
-        var interface = 0;
-        var let = 0;
-        var module = 0;
-        var number = 0;
-        var package = 0;
-        var private = 0;
-        var protected = 0;
-        var public = 0;
-        var set = 0;
-        var static = 0;
-        var string = 0 /  >
-        ;
-        var yield = 0;
-        var sum3 = any + bool + declare + constructor + get + implements + interface + let + module + number + package + private + protected + public + set + static + string + yield;
-        return 0;
-    };
-    /// <summary>
-    /// Test different statements. Including if-else,swith,foreach,(un)checked,lock,using,try-catch-finally
-    /// </summary>
-    /// <param name="i"></param>
-    /// <returns></returns>
-    BasicFeatures.prototype.STATEMENTS = function (i) {
-        var retVal = 0;
-        if (i == 1)
-            retVal = 1;
-        else
-            retVal = 0;
-        switch (i) {
-            case 2:
-                retVal = 1;
-                break;
-            case 3:
-                retVal = 1;
-                break;
-            default:
-                break;
-        }
-        for (var x in { x: 0, y: 1 }) {
-            !;
-            try {
-                throw null;
-            }
-            catch (Exception) { }
-        }
-        try {
-        }
-        finally {
-            try { }
-            catch (Exception) { }
-        }
-        return retVal;
-    };
-    /// <summary>
-    /// Test types in ts language. Including class,struct,interface,delegate,anonymous type
-    /// </summary>
-    /// <returns></returns>
-    BasicFeatures.prototype.TYPES = function () {
-        var retVal = 0;
-        var c = new CLASS();
-        var xx = c;
-        retVal += ;
-        try { }
-        catch () { }
-        Property;
-        retVal += c.Member();
-        retVal += xx.Foo() ? 0 : 1;
-        //anonymous type
-        var anony = { a: new CLASS() };
-        retVal += anony.a.d();
-        return retVal;
-    };
-    ///// <summary>
-    ///// Test different operators
-    ///// </summary>
-    ///// <returns></returns>
-    BasicFeatures.prototype.OPERATOR = function () {
-        var a = [1, 2, 3, 4, 5,]; /*[] bug*/ // YES []
-        var i = a[1]; /*[]*/
-        i = i + i - i * i / i % i & i | i ^ i; /*+ - * / % & | ^*/
-        var b = true && false || true ^ false; /*& | ^*/
-        b = !b; /*!*/
-        i = ~i; /*~i*/
-        b = i < (i - 1) && (i + 1) > i; /*< && >*/
-        var f = true ? 1 : 0; /*? :*/ // YES :
-        i++; /*++*/
-        i--; /*--*/
-        b = true && false || true; /*&& ||*/
-        i = i << 5; /*<<*/
-        i = i >> 5; /*>>*/
-        var j = i;
-        b = i == j && i != j && i <= j && i >= j; /*= == && != <= >=*/
-        i += 5.0; /*+=*/
-        i -= i; /*-=*/
-        i *= i; /**=*/
-        if (i == 0)
-            i++;
-        i /= i; /*/=*/
-        i %= i; /*%=*/
-        i &= i; /*&=*/
-        i |= i; /*|=*/
-        i ^= i; /*^=*/
-        i <<= i; /*<<=*/
-        i >>= i; /*>>=*/
-        if (i == 0 &&  != b && f == 1)
-            return 0;
-        else
-            return 1;
+        var ;
     };
     return BasicFeatures;
 })();
+var interface = 0;
+var let = 0;
+var module = 0;
+var number = 0;
+var package = 0;
+var private = 0;
+var protected = 0;
+var public = 0;
+var set = 0;
+var static = 0;
+var string = 0 /  >
+;
+var yield = 0;
+var sum3 = any + bool + declare + constructor + get + implements + interface + let + module + number + package + private + protected + public + set + static + string + yield;
+return 0;
+/// <summary>
+/// Test different statements. Including if-else,swith,foreach,(un)checked,lock,using,try-catch-finally
+/// </summary>
+/// <param name="i"></param>
+/// <returns></returns>
+STATEMENTS(i, number);
+number;
+{
+    var retVal = 0;
+    if (i == 1)
+        retVal = 1;
+    else
+        retVal = 0;
+    switch (i) {
+        case 2:
+            retVal = 1;
+            break;
+        case 3:
+            retVal = 1;
+            break;
+        default:
+            break;
+    }
+    for (var x in { x: 0, y: 1 }) {
+        !;
+        try {
+            throw null;
+        }
+        catch (Exception) { }
+    }
+    try {
+    }
+    finally {
+        try { }
+        catch (Exception) { }
+    }
+    return retVal;
+}
+TYPES();
+number;
+{
+    var retVal = 0;
+    var c = new CLASS();
+    var xx = c;
+    retVal += ;
+    try { }
+    catch () { }
+    Property;
+    retVal += c.Member();
+    retVal += xx.Foo() ? 0 : 1;
+    //anonymous type
+    var anony = { a: new CLASS() };
+    retVal += anony.a.d();
+    return retVal;
+}
+OPERATOR();
+number;
+{
+    var a = [1, 2, 3, 4, 5,]; /*[] bug*/ // YES []
+    var i = a[1]; /*[]*/
+    i = i + i - i * i / i % i & i | i ^ i; /*+ - * / % & | ^*/
+    var b = true && false || true ^ false; /*& | ^*/
+    b = !b; /*!*/
+    i = ~i; /*~i*/
+    b = i < (i - 1) && (i + 1) > i; /*< && >*/
+    var f = true ? 1 : 0; /*? :*/ // YES :
+    i++; /*++*/
+    i--; /*--*/
+    b = true && false || true; /*&& ||*/
+    i = i << 5; /*<<*/
+    i = i >> 5; /*>>*/
+    var j = i;
+    b = i == j && i != j && i <= j && i >= j; /*= == && != <= >=*/
+    i += 5.0; /*+=*/
+    i -= i; /*-=*/
+    i *= i; /**=*/
+    if (i == 0)
+        i++;
+    i /= i; /*/=*/
+    i %= i; /*%=*/
+    i &= i; /*&=*/
+    i |= i; /*|=*/
+    i ^= i; /*^=*/
+    i <<= i; /*<<=*/
+    i >>= i; /*>>=*/
+    if (i == 0 &&  != b && f == 1)
+        return 0;
+    else
+        return 1;
+}
 var CLASS = (function () {
     function CLASS() {
-        this.d = function () { yield; 0; };
+        this.d = function () { ; };
     }
     Object.defineProperty(CLASS.prototype, "Property", {
         get: function () { return 0; },

tests/baselines/reference/convertKeywordsYes.errors.txt

@@ -0,0 +1,353 @@
+tests/cases/compiler/convertKeywordsYes.ts(293,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(293,21): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(294,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(296,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(296,19): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(297,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(297,19): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(298,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(298,21): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(299,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(299,18): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(301,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(301,18): error TS1005: ';' expected.
+tests/cases/compiler/convertKeywordsYes.ts(303,11): error TS1005: '{' expected.
+tests/cases/compiler/convertKeywordsYes.ts(303,17): error TS1005: ';' expected.
+
+
+==== tests/cases/compiler/convertKeywordsYes.ts (15 errors) ====
+    // reserved ES5 future in strict mode
+    
+    var constructor = 0;
+    var any = 0;
+    var boolean = 0;
+    var implements = 0;
+    var interface = 0;
+    var let = 0;
+    var module = 0;
+    var number = 0;
+    var package = 0;
+    var private = 0;
+    var protected = 0;
+    var public = 0;
+    var set = 0;
+    var static = 0;
+    var string = 0;
+    var get = 0;
+    var yield = 0;
+    var declare = 0;
+    
+    function bigGeneric<
+        constructor,
+        implements ,
+        interface ,
+        let,
+        module ,
+        package,
+        private ,
+        protected,
+        public ,
+        set ,
+        static ,
+        get ,
+        yield,
+        declare
+        >(c: constructor,
+        a: any,
+        b2: boolean,
+        i: implements ,
+        i2: interface ,
+        l: let,
+        m: module ,
+        n: number,
+        p: package,
+        p2: private ,
+        p3: protected,
+        p4: public ,
+        s: set ,
+        s2: static ,
+        s3: string,
+        g: get ,
+        y: yield,
+        d: declare ) { }
+    
+    var bigObject = {
+        constructor: 0,
+        any: 0,
+        boolean: 0,
+        implements: 0,
+        interface: 0,
+        let: 0,
+        module: 0,
+        number: 0,
+        package: 0,
+        private: 0,
+        protected: 0,
+        public: 0,
+        set: 0,
+        static: 0,
+        string: 0,
+        get: 0,
+        yield: 0,
+        break: 0,
+        case: 0,
+        catch: 0,
+        class: 0,
+        continue: 0,
+        const: 0,
+    
+        debugger: 0,
+        declare: 0,
+        default: 0,
+        delete: 0,
+        do: 0,
+        else: 0,
+        enum: 0,
+        export: 0,
+        extends: 0,
+        false: 0,
+        finally: 0,
+        for: 0,
+        function: 0,
+        if: 0,
+    
+        import: 0,
+        in: 0,
+        instanceof: 0,
+        new: 0,
+        null: 0,
+        return: 0,
+        super: 0,
+        switch: 0,
+        this: 0,
+        throw: 0,
+        true: 0,
+        try: 0,
+        typeof: 0,
+        var: 0,
+        void: 0,
+        while: 0,
+        with: 0,
+    };
+    
+    interface bigInterface {
+        constructor;
+        any;
+        boolean;
+        implements;
+        interface;
+        let;
+        module;
+        number;
+        package;
+        private;
+        protected;
+        public;
+        set;
+        static;
+        string;
+        get;
+        yield;
+        break;
+        case;
+        catch;
+        class;
+        continue;
+        const;
+    
+        debugger;
+        declare;
+        default;
+        delete;
+        do;
+        else;
+        enum;
+        export;
+        extends;
+        false;
+        finally;
+        for;
+        function;
+        if;
+    
+        import;
+        in;
+        instanceof;
+        new;
+        null;
+        return;
+        super;
+        switch;
+        this;
+        throw;
+        true;
+        try;
+        typeof;
+        var;
+        void;
+        while;
+        with;
+    }
+    
+    class bigClass {
+        public "constructor" = 0;
+        public any = 0;
+        public boolean = 0;
+        public implements = 0;
+        public interface = 0;
+        public let = 0;
+        public module = 0;
+        public number = 0;
+        public package = 0;
+        public private = 0;
+        public protected = 0;
+        public public = 0;
+        public set = 0;
+        public static = 0;
+        public string = 0;
+        public get = 0;
+        public yield = 0;
+        public break = 0;
+        public case = 0;
+        public catch = 0;
+        public class = 0;
+        public continue = 0;
+        public const = 0;
+        public debugger = 0;
+        public declare = 0;
+        public default = 0;
+        public delete = 0;
+        public do = 0;
+        public else = 0;
+        public enum = 0;
+        public export = 0;
+        public extends = 0;
+        public false = 0;
+        public finally = 0;
+        public for = 0;
+        public function = 0;
+        public if = 0;
+        public import = 0;
+        public in = 0;
+        public instanceof = 0;
+        public new = 0;
+        public null = 0;
+        public return = 0;
+        public super = 0;
+        public switch = 0;
+        public this = 0;
+        public throw = 0;
+        public true = 0;
+        public try = 0;
+        public typeof = 0;
+        public var = 0;
+        public void = 0;
+        public while = 0;
+        public with = 0;
+    }
+    
+    enum bigEnum {
+        constructor,
+        any,
+        boolean,
+        implements,
+        interface,
+        let,
+        module,
+        number,
+        package,
+        private,
+        protected,
+        public,
+        set,
+        static,
+        string,
+        get,
+        yield,
+        break,
+        case,
+        catch,
+        class,
+        continue,
+        const,
+    
+        debugger,
+        declare,
+        default,
+        delete,
+        do,
+        else,
+        enum,
+        export,
+        extends,
+        false,
+        finally,
+        for,
+        function,
+        if,
+    
+        import,
+        in,
+        instanceof,
+        new,
+        null,
+        return,
+        super,
+        switch,
+        this,
+        throw,
+        true,
+        try,
+        typeof,
+        var,
+        void,
+        while,
+        with,
+    }
+    
+    module bigModule {
+        class constructor { }
+        class implements { }
+        class interface { }
+              ~~~~~~~~~
+!!! error TS1005: '{' expected.
+                        ~
+!!! error TS1005: ';' expected.
+        class let { }
+              ~~~
+!!! error TS1005: '{' expected.
+        class module { }
+        class package { }
+              ~~~~~~~
+!!! error TS1005: '{' expected.
+                      ~
+!!! error TS1005: ';' expected.
+        class private { }
+              ~~~~~~~
+!!! error TS1005: '{' expected.
+                      ~
+!!! error TS1005: ';' expected.
+        class protected { }
+              ~~~~~~~~~
+!!! error TS1005: '{' expected.
+                        ~
+!!! error TS1005: ';' expected.
+        class public { }
+              ~~~~~~
+!!! error TS1005: '{' expected.
+                     ~
+!!! error TS1005: ';' expected.
+        class set { }
+        class static { }
+              ~~~~~~
+!!! error TS1005: '{' expected.
+                     ~
+!!! error TS1005: ';' expected.
+        class get { }
+        class yield { }
+              ~~~~~
+!!! error TS1005: '{' expected.
+                    ~
+!!! error TS1005: ';' expected.
+        class declare { }
+    }

tests/baselines/reference/convertKeywordsYes.js

@@ -505,66 +505,81 @@ var bigModule;
         }
         return constructor;
     })();
-    var implements = (function () {
-        function implements() {
+    var default_1 = (function () {
+        function default_1() {
         }
-        return implements;
+        return default_1;
     })();
-    var interface = (function () {
-        function interface() {
+    var default_2 = (function () {
+        function default_2() {
         }
-        return interface;
+        return default_2;
     })();
-    var let = (function () {
-        function let() {
+    interface;
+    { }
+    var default_3 = (function () {
+        function default_3() {
         }
-        return let;
+        return default_3;
     })();
+    var _a = void 0;
     var module = (function () {
         function module() {
         }
         return module;
     })();
-    var package = (function () {
-        function package() {
+    var default_4 = (function () {
+        function default_4() {
         }
-        return package;
+        return default_4;
     })();
-    var private = (function () {
-        function private() {
+    package;
+    { }
+    var default_5 = (function () {
+        function default_5() {
         }
-        return private;
+        return default_5;
     })();
-    var protected = (function () {
-        function protected() {
+    private;
+    { }
+    var default_6 = (function () {
+        function default_6() {
         }
-        return protected;
+        return default_6;
     })();
-    var public = (function () {
-        function public() {
+    protected;
+    { }
+    var default_7 = (function () {
+        function default_7() {
         }
-        return public;
+        return default_7;
     })();
+    public;
+    { }
     var set = (function () {
         function set() {
         }
         return set;
     })();
-    var static = (function () {
-        function static() {
+    var default_8 = (function () {
+        function default_8() {
         }
-        return static;
+        return default_8;
     })();
+    static;
+    { }
     var get = (function () {
         function get() {
         }
         return get;
     })();
-    var yield = (function () {
-        function yield() {
+    var default_9 = (function () {
+        function default_9() {
         }
-        return yield;
+        return default_9;
     })();
+    yield;
+    { }
     var declare = (function () {
         function declare() {
         }

tests/baselines/reference/convertKeywordsYes.types

@@ -1,879 +0,0 @@
-=== tests/cases/compiler/convertKeywordsYes.ts ===
-// reserved ES5 future in strict mode
-
-var constructor = 0;
->constructor : number
-
-var any = 0;
->any : number
-
-var boolean = 0;
->boolean : number
-
-var implements = 0;
->implements : number
-
-var interface = 0;
->interface : number
-
-var let = 0;
->let : number
-
-var module = 0;
->module : number
-
-var number = 0;
->number : number
-
-var package = 0;
->package : number
-
-var private = 0;
->private : number
-
-var protected = 0;
->protected : number
-
-var public = 0;
->public : number
-
-var set = 0;
->set : number
-
-var static = 0;
->static : number
-
-var string = 0;
->string : number
-
-var get = 0;
->get : number
-
-var yield = 0;
->yield : number
-
-var declare = 0;
->declare : number
-
-function bigGeneric<
->bigGeneric : <constructor, implements, interface, let, module, package, private, protected, public, set, static, get, yield, declare>(c: constructor, a: any, b2: boolean, i: implements, i2: interface, l: let, m: module, n: number, p: package, p2: private, p3: protected, p4: public, s: set, s2: static, s3: string, g: get, y: yield, d: declare) => void
-
-    constructor,
->constructor : constructor
-
-    implements ,
->implements : implements
-
-    interface ,
->interface : interface
-
-    let,
->let : let
-
-    module ,
->module : module
-
-    package,
->package : package
-
-    private ,
->private : private
-
-    protected,
->protected : protected
-
-    public ,
->public : public
-
-    set ,
->set : set
-
-    static ,
->static : static
-
-    get ,
->get : get
-
-    yield,
->yield : yield
-
-    declare
->declare : declare
-
-    >(c: constructor,
->c : constructor
->constructor : constructor
-
-    a: any,
->a : any
-
-    b2: boolean,
->b2 : boolean
-
-    i: implements ,
->i : implements
->implements : implements
-
-    i2: interface ,
->i2 : interface
->interface : interface
-
-    l: let,
->l : let
->let : let
-
-    m: module ,
->m : module
->module : module
-
-    n: number,
->n : number
-
-    p: package,
->p : package
->package : package
-
-    p2: private ,
->p2 : private
->private : private
-
-    p3: protected,
->p3 : protected
->protected : protected
-
-    p4: public ,
->p4 : public
->public : public
-
-    s: set ,
->s : set
->set : set
-
-    s2: static ,
->s2 : static
->static : static
-
-    s3: string,
->s3 : string
-
-    g: get ,
->g : get
->get : get
-
-    y: yield,
->y : yield
->yield : yield
-
-    d: declare ) { }
->d : declare
->declare : declare
-
-var bigObject = {
->bigObject : { constructor: number; any: number; boolean: number; implements: number; interface: number; let: number; module: number; number: number; package: number; private: number; protected: number; public: number; set: number; static: number; string: number; get: number; yield: number; break: number; case: number; catch: number; class: number; continue: number; const: number; debugger: number; declare: number; default: number; delete: number; do: number; else: number; enum: number; export: number; extends: number; false: number; finally: number; for: number; function: number; if: number; import: number; in: number; instanceof: number; new: number; null: number; return: number; super: number; switch: number; this: number; throw: number; true: number; try: number; typeof: number; var: number; void: number; while: number; with: number; }
->{    constructor: 0,    any: 0,    boolean: 0,    implements: 0,    interface: 0,    let: 0,    module: 0,    number: 0,    package: 0,    private: 0,    protected: 0,    public: 0,    set: 0,    static: 0,    string: 0,    get: 0,    yield: 0,    break: 0,    case: 0,    catch: 0,    class: 0,    continue: 0,    const: 0,    debugger: 0,    declare: 0,    default: 0,    delete: 0,    do: 0,    else: 0,    enum: 0,    export: 0,    extends: 0,    false: 0,    finally: 0,    for: 0,    function: 0,    if: 0,    import: 0,    in: 0,    instanceof: 0,    new: 0,    null: 0,    return: 0,    super: 0,    switch: 0,    this: 0,    throw: 0,    true: 0,    try: 0,    typeof: 0,    var: 0,    void: 0,    while: 0,    with: 0,} : { constructor: number; any: number; boolean: number; implements: number; interface: number; let: number; module: number; number: number; package: number; private: number; protected: number; public: number; set: number; static: number; string: number; get: number; yield: number; break: number; case: number; catch: number; class: number; continue: number; const: number; debugger: number; declare: number; default: number; delete: number; do: number; else: number; enum: number; export: number; extends: number; false: number; finally: number; for: number; function: number; if: number; import: number; in: number; instanceof: number; new: number; null: number; return: number; super: number; switch: number; this: number; throw: number; true: number; try: number; typeof: number; var: number; void: number; while: number; with: number; }
-
-    constructor: 0,
->constructor : number
-
-    any: 0,
->any : number
-
-    boolean: 0,
->boolean : number
-
-    implements: 0,
->implements : number
-
-    interface: 0,
->interface : number
-
-    let: 0,
->let : number
-
-    module: 0,
->module : number
-
-    number: 0,
->number : number
-
-    package: 0,
->package : number
-
-    private: 0,
->private : number
-
-    protected: 0,
->protected : number
-
-    public: 0,
->public : number
-
-    set: 0,
->set : number
-
-    static: 0,
->static : number
-
-    string: 0,
->string : number
-
-    get: 0,
->get : number
-
-    yield: 0,
->yield : number
-
-    break: 0,
->break : number
-
-    case: 0,
->case : number
-
-    catch: 0,
->catch : number
-
-    class: 0,
->class : number
-
-    continue: 0,
->continue : number
-
-    const: 0,
->const : number
-
-    debugger: 0,
->debugger : number
-
-    declare: 0,
->declare : number
-
-    default: 0,
->default : number
-
-    delete: 0,
->delete : number
-
-    do: 0,
->do : number
-
-    else: 0,
->else : number
-
-    enum: 0,
->enum : number
-
-    export: 0,
->export : number
-
-    extends: 0,
->extends : number
-
-    false: 0,
->false : number
-
-    finally: 0,
->finally : number
-
-    for: 0,
->for : number
-
-    function: 0,
->function : number
-
-    if: 0,
->if : number
-
-    import: 0,
->import : number
-
-    in: 0,
->in : number
-
-    instanceof: 0,
->instanceof : number
-
-    new: 0,
->new : number
-
-    null: 0,
->null : number
-
-    return: 0,
->return : number
-
-    super: 0,
->super : number
-
-    switch: 0,
->switch : number
-
-    this: 0,
->this : number
-
-    throw: 0,
->throw : number
-
-    true: 0,
->true : number
-
-    try: 0,
->try : number
-
-    typeof: 0,
->typeof : number
-
-    var: 0,
->var : number
-
-    void: 0,
->void : number
-
-    while: 0,
->while : number
-
-    with: 0,
->with : number
-
-};
-
-interface bigInterface {
->bigInterface : bigInterface
-
-    constructor;
->constructor : any
-
-    any;
->any : any
-
-    boolean;
->boolean : any
-
-    implements;
->implements : any
-
-    interface;
->interface : any
-
-    let;
->let : any
-
-    module;
->module : any
-
-    number;
->number : any
-
-    package;
->package : any
-
-    private;
->private : any
-
-    protected;
->protected : any
-
-    public;
->public : any
-
-    set;
->set : any
-
-    static;
->static : any
-
-    string;
->string : any
-
-    get;
->get : any
-
-    yield;
->yield : any
-
-    break;
->break : any
-
-    case;
->case : any
-
-    catch;
->catch : any
-
-    class;
->class : any
-
-    continue;
->continue : any
-
-    const;
->const : any
-
-    debugger;
->debugger : any
-
-    declare;
->declare : any
-
-    default;
->default : any
-
-    delete;
->delete : any
-
-    do;
->do : any
-
-    else;
->else : any
-
-    enum;
->enum : any
-
-    export;
->export : any
-
-    extends;
->extends : any
-
-    false;
->false : any
-
-    finally;
->finally : any
-
-    for;
->for : any
-
-    function;
->function : any
-
-    if;
->if : any
-
-    import;
->import : any
-
-    in;
->in : any
-
-    instanceof;
->instanceof : any
-
-    new;
->new : any
-
-    null;
->null : any
-
-    return;
->return : any
-
-    super;
->super : any
-
-    switch;
->switch : any
-
-    this;
->this : any
-
-    throw;
->throw : any
-
-    true;
->true : any
-
-    try;
->try : any
-
-    typeof;
->typeof : any
-
-    var;
->var : any
-
-    void;
->void : any
-
-    while;
->while : any
-
-    with;
->with : any
-}
-
-class bigClass {
->bigClass : bigClass
-
-    public "constructor" = 0;
-    public any = 0;
->any : number
-
-    public boolean = 0;
->boolean : number
-
-    public implements = 0;
->implements : number
-
-    public interface = 0;
->interface : number
-
-    public let = 0;
->let : number
-
-    public module = 0;
->module : number
-
-    public number = 0;
->number : number
-
-    public package = 0;
->package : number
-
-    public private = 0;
->private : number
-
-    public protected = 0;
->protected : number
-
-    public public = 0;
->public : number
-
-    public set = 0;
->set : number
-
-    public static = 0;
->static : number
-
-    public string = 0;
->string : number
-
-    public get = 0;
->get : number
-
-    public yield = 0;
->yield : number
-
-    public break = 0;
->break : number
-
-    public case = 0;
->case : number
-
-    public catch = 0;
->catch : number
-
-    public class = 0;
->class : number
-
-    public continue = 0;
->continue : number
-
-    public const = 0;
->const : number
-
-    public debugger = 0;
->debugger : number
-
-    public declare = 0;
->declare : number
-
-    public default = 0;
->default : number
-
-    public delete = 0;
->delete : number
-
-    public do = 0;
->do : number
-
-    public else = 0;
->else : number
-
-    public enum = 0;
->enum : number
-
-    public export = 0;
->export : number
-
-    public extends = 0;
->extends : number
-
-    public false = 0;
->false : number
-
-    public finally = 0;
->finally : number
-
-    public for = 0;
->for : number
-
-    public function = 0;
->function : number
-
-    public if = 0;
->if : number
-
-    public import = 0;
->import : number
-
-    public in = 0;
->in : number
-
-    public instanceof = 0;
->instanceof : number
-
-    public new = 0;
->new : number
-
-    public null = 0;
->null : number
-
-    public return = 0;
->return : number
-
-    public super = 0;
->super : number
-
-    public switch = 0;
->switch : number
-
-    public this = 0;
->this : number
-
-    public throw = 0;
->throw : number
-
-    public true = 0;
->true : number
-
-    public try = 0;
->try : number
-
-    public typeof = 0;
->typeof : number
-
-    public var = 0;
->var : number
-
-    public void = 0;
->void : number
-
-    public while = 0;
->while : number
-
-    public with = 0;
->with : number
-}
-
-enum bigEnum {
->bigEnum : bigEnum
-
-    constructor,
->constructor : bigEnum
-
-    any,
->any : bigEnum
-
-    boolean,
->boolean : bigEnum
-
-    implements,
->implements : bigEnum
-
-    interface,
->interface : bigEnum
-
-    let,
->let : bigEnum
-
-    module,
->module : bigEnum
-
-    number,
->number : bigEnum
-
-    package,
->package : bigEnum
-
-    private,
->private : bigEnum
-
-    protected,
->protected : bigEnum
-
-    public,
->public : bigEnum
-
-    set,
->set : bigEnum
-
-    static,
->static : bigEnum
-
-    string,
->string : bigEnum
-
-    get,
->get : bigEnum
-
-    yield,
->yield : bigEnum
-
-    break,
->break : bigEnum
-
-    case,
->case : bigEnum
-
-    catch,
->catch : bigEnum
-
-    class,
->class : bigEnum
-
-    continue,
->continue : bigEnum
-
-    const,
->const : bigEnum
-
-    debugger,
->debugger : bigEnum
-
-    declare,
->declare : bigEnum
-
-    default,
->default : bigEnum
-
-    delete,
->delete : bigEnum
-
-    do,
->do : bigEnum
-
-    else,
->else : bigEnum
-
-    enum,
->enum : bigEnum
-
-    export,
->export : bigEnum
-
-    extends,
->extends : bigEnum
-
-    false,
->false : bigEnum
-
-    finally,
->finally : bigEnum
-
-    for,
->for : bigEnum
-
-    function,
->function : bigEnum
-
-    if,
->if : bigEnum
-
-    import,
->import : bigEnum
-
-    in,
->in : bigEnum
-
-    instanceof,
->instanceof : bigEnum
-
-    new,
->new : bigEnum
-
-    null,
->null : bigEnum
-
-    return,
->return : bigEnum
-
-    super,
->super : bigEnum
-
-    switch,
->switch : bigEnum
-
-    this,
->this : bigEnum
-
-    throw,
->throw : bigEnum
-
-    true,
->true : bigEnum
-
-    try,
->try : bigEnum
-
-    typeof,
->typeof : bigEnum
-
-    var,
->var : bigEnum
-
-    void,
->void : bigEnum
-
-    while,
->while : bigEnum
-
-    with,
->with : bigEnum
-}
-
-module bigModule {
->bigModule : typeof bigModule
-
-    class constructor { }
->constructor : constructor
-
-    class implements { }
->implements : implements
-
-    class interface { }
->interface : interface
-
-    class let { }
->let : let
-
-    class module { }
->module : module
-
-    class package { }
->package : package
-
-    class private { }
->private : private
-
-    class protected { }
->protected : protected
-
-    class public { }
->public : public
-
-    class set { }
->set : set
-
-    class static { }
->static : static
-
-    class get { }
->get : get
-
-    class yield { }
->yield : yield
-
-    class declare { }
->declare : declare
-}

tests/baselines/reference/decoratorOnClass1.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClass1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec], C);
+    C = __decorate([
+        dec
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClass2.js

@@ -6,23 +6,19 @@ export class C {
 }
 
 //// [decoratorOnClass2.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec], C);
+    C = __decorate([
+        dec
+    ], C);
     return C;
 })();
 exports.C = C;

tests/baselines/reference/decoratorOnClass3.js

@@ -7,22 +7,18 @@ class C {
 }
 
 //// [decoratorOnClass3.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec], C);
+    C = __decorate([
+        dec
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClass4.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClass4.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec()], C);
+    C = __decorate([
+        dec()
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClass5.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClass5.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec()], C);
+    C = __decorate([
+        dec()
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClass8.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClass8.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    C = __decorate([dec()], C);
+    C = __decorate([
+        dec()
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClassAccessor1.js

@@ -6,18 +6,12 @@ class C {
 }
 
 //// [decoratorOnClassAccessor1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
@@ -27,6 +21,9 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
-    Object.defineProperty(C.prototype, "accessor", __decorate([dec], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassAccessor2.js

@@ -6,18 +6,12 @@ class C {
 }
 
 //// [decoratorOnClassAccessor2.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
@@ -27,6 +21,9 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
-    Object.defineProperty(C.prototype, "accessor", __decorate([dec], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassAccessor3.errors.txt

@@ -1,35 +1,11 @@
 tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,5): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,5): error TS2304: Cannot find name 'public'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,12): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,16): error TS1146: Declaration expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,17): error TS2304: Cannot find name 'get'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,21): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,21): error TS2304: Cannot find name 'accessor'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(4,32): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts(5,1): error TS1128: Declaration or statement expected.
 
 
-==== tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts (9 errors) ====
+==== tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor3.ts (1 errors) ====
     declare function dec<T>(target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<T>): TypedPropertyDescriptor<T>;
     
     class C {
         public @dec get accessor() { return 1; }
         ~~~~~~
 !!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-        ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
-               ~
-!!! error TS1005: ';' expected.
-                   
-!!! error TS1146: Declaration expected.
-                    ~~~
-!!! error TS2304: Cannot find name 'get'.
-                        ~~~~~~~~
-!!! error TS1005: ';' expected.
-                        ~~~~~~~~
-!!! error TS2304: Cannot find name 'accessor'.
-                                   ~
-!!! error TS1005: ';' expected.
-    }
-    ~
-!!! error TS1128: Declaration or statement expected.
+    }

tests/baselines/reference/decoratorOnClassAccessor3.js

@@ -6,14 +6,24 @@ class C {
 }
 
 //// [decoratorOnClassAccessor3.js]
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};
 var C = (function () {
     function C() {
     }
+    Object.defineProperty(C.prototype, "accessor", {
+        get: function () { return 1; },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();
-public;
-get;
-accessor();
-{
-    return 1;
-}

tests/baselines/reference/decoratorOnClassAccessor4.js

@@ -6,18 +6,12 @@ class C {
 }
 
 //// [decoratorOnClassAccessor4.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
@@ -27,6 +21,9 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
-    Object.defineProperty(C.prototype, "accessor", __decorate([dec], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassAccessor5.js

@@ -6,18 +6,12 @@ class C {
 }
 
 //// [decoratorOnClassAccessor5.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
@@ -27,6 +21,9 @@ var C = (function () {
         enumerable: true,
         configurable: true
     });
-    Object.defineProperty(C.prototype, "accessor", __decorate([dec], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassAccessor6.errors.txt

@@ -1,44 +1,11 @@
 tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,5): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,5): error TS2304: Cannot find name 'public'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,12): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,16): error TS1146: Declaration expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,17): error TS2304: Cannot find name 'set'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,21): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,21): error TS2304: Cannot find name 'accessor'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,30): error TS2304: Cannot find name 'value'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,35): error TS1005: ',' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,37): error TS2304: Cannot find name 'number'.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(4,45): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts(5,1): error TS1128: Declaration or statement expected.
 
 
-==== tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts (12 errors) ====
+==== tests/cases/conformance/decorators/class/accessor/decoratorOnClassAccessor6.ts (1 errors) ====
     declare function dec<T>(target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<T>): TypedPropertyDescriptor<T>;
     
     class C {
         public @dec set accessor(value: number) { }
         ~~~~~~
 !!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-        ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
-               ~
-!!! error TS1005: ';' expected.
-                   
-!!! error TS1146: Declaration expected.
-                    ~~~
-!!! error TS2304: Cannot find name 'set'.
-                        ~~~~~~~~
-!!! error TS1005: ';' expected.
-                        ~~~~~~~~
-!!! error TS2304: Cannot find name 'accessor'.
-                                 ~~~~~
-!!! error TS2304: Cannot find name 'value'.
-                                      ~
-!!! error TS1005: ',' expected.
-                                        ~~~~~~
-!!! error TS2304: Cannot find name 'number'.
-                                                ~
-!!! error TS1005: ';' expected.
-    }
-    ~
-!!! error TS1128: Declaration or statement expected.
+    }

tests/baselines/reference/decoratorOnClassAccessor6.js

@@ -6,12 +6,24 @@ class C {
 }
 
 //// [decoratorOnClassAccessor6.js]
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};
 var C = (function () {
     function C() {
     }
+    Object.defineProperty(C.prototype, "accessor", {
+        set: function (value) { },
+        enumerable: true,
+        configurable: true
+    });
+    Object.defineProperty(C.prototype, "accessor",
+        __decorate([
+            dec
+        ], C.prototype, "accessor", Object.getOwnPropertyDescriptor(C.prototype, "accessor")));
     return C;
 })();
-public;
-set;
-accessor(value, number);
-{ }

tests/baselines/reference/decoratorOnClassConstructor1.errors.txt

@@ -6,6 +6,6 @@ tests/cases/conformance/decorators/class/constructor/decoratorOnClassConstructor
     
     class C {
         @dec constructor() {}
-        ~~~~~~~~~~~~~~~~~~~~~
+        ~
 !!! error TS1206: Decorators are not valid here.
     }

tests/baselines/reference/decoratorOnClassConstructorParameter1.js

@@ -6,22 +6,19 @@ class C {
 }
 
 //// [decoratorOnClassConstructorParameter1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
+var __param = this.__param || function(index, decorator) { return function (target, key) { decorator(target, key, index); } };
 var C = (function () {
     function C(p) {
     }
-    __decorate([dec], C, void 0, 0);
+    C = __decorate([
+        __param(0, dec)
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClassConstructorParameter4.errors.txt

@@ -1,11 +1,14 @@
+tests/cases/conformance/decorators/class/constructor/parameter/decoratorOnClassConstructorParameter4.ts(4,17): error TS1003: Identifier expected.
 tests/cases/conformance/decorators/class/constructor/parameter/decoratorOnClassConstructorParameter4.ts(4,24): error TS1005: ',' expected.
 
 
-==== tests/cases/conformance/decorators/class/constructor/parameter/decoratorOnClassConstructorParameter4.ts (1 errors) ====
+==== tests/cases/conformance/decorators/class/constructor/parameter/decoratorOnClassConstructorParameter4.ts (2 errors) ====
     declare function dec(target: Function, propertyKey: string | symbol, parameterIndex: number): void;
     
     class C {
         constructor(public @dec p: number) {}
+                    ~~~~~~
+!!! error TS1003: Identifier expected.
                            ~
 !!! error TS1005: ',' expected.
     }

tests/baselines/reference/decoratorOnClassConstructorParameter4.js

@@ -6,22 +6,19 @@ class C {
 }
 
 //// [decoratorOnClassConstructorParameter4.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
+var __param = this.__param || function(index, decorator) { return function (target, key) { decorator(target, key, index); } };
 var C = (function () {
-    function C(public, p) {
+    function C(, p) {
     }
-    __decorate([dec], C, void 0, 1);
+    C = __decorate([
+        __param(1, dec)
+    ], C);
     return C;
 })();

tests/baselines/reference/decoratorOnClassMethod1.js

@@ -6,23 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
-    Object.defineProperty(C.prototype, "method", __decorate([dec], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            dec
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassMethod10.js

@@ -6,23 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod10.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
-    Object.defineProperty(C.prototype, "method", __decorate([dec], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            dec
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassMethod2.js

@@ -6,23 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod2.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
-    Object.defineProperty(C.prototype, "method", __decorate([dec], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            dec
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassMethod3.errors.txt

@@ -1,29 +1,11 @@
 tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,5): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,5): error TS2304: Cannot find name 'public'.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,12): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,16): error TS1146: Declaration expected.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,17): error TS2304: Cannot find name 'method'.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(4,26): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts(5,1): error TS1128: Declaration or statement expected.
 
 
-==== tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts (7 errors) ====
+==== tests/cases/conformance/decorators/class/method/decoratorOnClassMethod3.ts (1 errors) ====
     declare function dec<T>(target: any, propertyKey: string, descriptor: TypedPropertyDescriptor<T>): TypedPropertyDescriptor<T>;
     
     class C {
         public @dec method() {}
         ~~~~~~
 !!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-        ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
-               ~
-!!! error TS1005: ';' expected.
-                   
-!!! error TS1146: Declaration expected.
-                    ~~~~~~
-!!! error TS2304: Cannot find name 'method'.
-                             ~
-!!! error TS1005: ';' expected.
-    }
-    ~
-!!! error TS1128: Declaration or statement expected.
+    }

tests/baselines/reference/decoratorOnClassMethod3.js

@@ -6,11 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod3.js]
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};
 var C = (function () {
     function C() {
     }
+    C.prototype.method = function () { };
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            dec
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();
-public;
-method();
-{ }

tests/baselines/reference/decoratorOnClassMethod4.js

@@ -6,21 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassMethod4.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 class C {
     [_a = "method"]() { }
 }
-Object.defineProperty(C.prototype, _a, __decorate([dec], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
+Object.defineProperty(C.prototype, _a,
+    __decorate([
+        dec
+    ], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
 var _a;

tests/baselines/reference/decoratorOnClassMethod5.js

@@ -6,21 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassMethod5.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 class C {
     [_a = "method"]() { }
 }
-Object.defineProperty(C.prototype, _a, __decorate([dec()], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
+Object.defineProperty(C.prototype, _a,
+    __decorate([
+        dec()
+    ], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
 var _a;

tests/baselines/reference/decoratorOnClassMethod6.js

@@ -6,21 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassMethod6.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 class C {
     [_a = "method"]() { }
 }
-Object.defineProperty(C.prototype, _a, __decorate([dec], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
+Object.defineProperty(C.prototype, _a,
+    __decorate([
+        dec
+    ], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
 var _a;

tests/baselines/reference/decoratorOnClassMethod7.js

@@ -6,21 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassMethod7.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 class C {
     [_a = "method"]() { }
 }
-Object.defineProperty(C.prototype, _a, __decorate([dec], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
+Object.defineProperty(C.prototype, _a,
+    __decorate([
+        dec
+    ], C.prototype, _a, Object.getOwnPropertyDescriptor(C.prototype, _a)));
 var _a;

tests/baselines/reference/decoratorOnClassMethod8.js

@@ -6,23 +6,20 @@ class C {
 }
 
 //// [decoratorOnClassMethod8.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
     C.prototype.method = function () { };
-    Object.defineProperty(C.prototype, "method", __decorate([dec], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            dec
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassMethodParameter1.js

@@ -6,23 +6,21 @@ class C {
 }
 
 //// [decoratorOnClassMethodParameter1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
+var __param = this.__param || function(index, decorator) { return function (target, key) { decorator(target, key, index); } };
 var C = (function () {
     function C() {
     }
     C.prototype.method = function (p) { };
-    __decorate([dec], C.prototype, "method", 0);
+    Object.defineProperty(C.prototype, "method",
+        __decorate([
+            __param(0, dec)
+        ], C.prototype, "method", Object.getOwnPropertyDescriptor(C.prototype, "method")));
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty1.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty1.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec], C.prototype, "prop");
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty10.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty10.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec()], C.prototype, "prop");
+    __decorate([
+        dec()
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty11.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty11.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec], C.prototype, "prop");
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty2.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty2.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec], C.prototype, "prop");
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty3.errors.txt

@@ -1,26 +1,11 @@
 tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(4,5): error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(4,5): error TS2304: Cannot find name 'public'.
-tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(4,12): error TS1005: ';' expected.
-tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(4,16): error TS1146: Declaration expected.
-tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(4,17): error TS2304: Cannot find name 'prop'.
-tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts(5,1): error TS1128: Declaration or statement expected.
 
 
-==== tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts (6 errors) ====
+==== tests/cases/conformance/decorators/class/property/decoratorOnClassProperty3.ts (1 errors) ====
     declare function dec(target: any, propertyKey: string): void;
     
     class C {
         public @dec prop;
         ~~~~~~
 !!! error TS1068: Unexpected token. A constructor, method, accessor, or property was expected.
-        ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
-               ~
-!!! error TS1005: ';' expected.
-                   
-!!! error TS1146: Declaration expected.
-                    ~~~~
-!!! error TS2304: Cannot find name 'prop'.
-    }
-    ~
-!!! error TS1128: Declaration or statement expected.
+    }

tests/baselines/reference/decoratorOnClassProperty3.js

@@ -6,10 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty3.js]
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
+    }
+};
 var C = (function () {
     function C() {
     }
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();
-public;
-prop;

tests/baselines/reference/decoratorOnClassProperty6.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty6.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec], C.prototype, "prop");
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnClassProperty7.js

@@ -6,22 +6,18 @@ class C {
 }
 
 //// [decoratorOnClassProperty7.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
 var C = (function () {
     function C() {
     }
-    __decorate([dec], C.prototype, "prop");
+    __decorate([
+        dec
+    ], C.prototype, "prop");
     return C;
 })();

tests/baselines/reference/decoratorOnEnum.errors.txt

@@ -1,11 +1,11 @@
-tests/cases/conformance/decorators/invalid/decoratorOnEnum.ts(4,6): error TS1206: Decorators are not valid here.
+tests/cases/conformance/decorators/invalid/decoratorOnEnum.ts(3,1): error TS1206: Decorators are not valid here.
 
 
 ==== tests/cases/conformance/decorators/invalid/decoratorOnEnum.ts (1 errors) ====
     declare function dec<T>(target: T): T;
     
     @dec
-    enum E {
-         ~
+    ~
 !!! error TS1206: Decorators are not valid here.
+    enum E {
     }

tests/baselines/reference/decoratorOnFunctionDeclaration.errors.txt

@@ -1,11 +1,11 @@
-tests/cases/conformance/decorators/invalid/decoratorOnFunctionDeclaration.ts(4,10): error TS1206: Decorators are not valid here.
+tests/cases/conformance/decorators/invalid/decoratorOnFunctionDeclaration.ts(3,1): error TS1206: Decorators are not valid here.
 
 
 ==== tests/cases/conformance/decorators/invalid/decoratorOnFunctionDeclaration.ts (1 errors) ====
     declare function dec<T>(target: T): T;
     
     @dec
-    function F() {
-             ~
+    ~
 !!! error TS1206: Decorators are not valid here.
+    function F() {
     }

tests/baselines/reference/decoratorOnImportEquals1.errors.txt

@@ -10,8 +10,7 @@ tests/cases/conformance/decorators/invalid/decoratorOnImportEquals1.ts(8,5): err
     
     module M2 {
         @dec
-        ~~~~
-        import X = M1.X;
-    ~~~~~~~~~~~~~~~~~~~~
+        ~
 !!! error TS1206: Decorators are not valid here.
+        import X = M1.X;
     }

tests/baselines/reference/decoratorOnImportEquals2.errors.txt

@@ -3,10 +3,9 @@ tests/cases/conformance/decorators/invalid/decoratorOnImportEquals2_1.ts(1,1): e
 
 ==== tests/cases/conformance/decorators/invalid/decoratorOnImportEquals2_1.ts (1 errors) ====
     @dec
-    ~~~~
-    import lib = require('./decoratorOnImportEquals2_0');
-    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    ~
 !!! error TS1206: Decorators are not valid here.
+    import lib = require('./decoratorOnImportEquals2_0');
     
     declare function dec<T>(target: T): T;
 ==== tests/cases/conformance/decorators/invalid/decoratorOnImportEquals2_0.ts (0 errors) ====

tests/baselines/reference/decoratorOnInterface.errors.txt

@@ -1,11 +1,11 @@
-tests/cases/conformance/decorators/invalid/decoratorOnInterface.ts(4,11): error TS1206: Decorators are not valid here.
+tests/cases/conformance/decorators/invalid/decoratorOnInterface.ts(3,1): error TS1206: Decorators are not valid here.
 
 
 ==== tests/cases/conformance/decorators/invalid/decoratorOnInterface.ts (1 errors) ====
     declare function dec<T>(target: T): T;
     
     @dec
-    interface I {
-              ~
+    ~
 !!! error TS1206: Decorators are not valid here.
+    interface I {
     }

tests/baselines/reference/decoratorOnInternalModule.errors.txt

@@ -1,12 +1,12 @@
-tests/cases/conformance/decorators/invalid/decoratorOnInternalModule.ts(4,8): error TS1206: Decorators are not valid here.
+tests/cases/conformance/decorators/invalid/decoratorOnInternalModule.ts(3,1): error TS1206: Decorators are not valid here.
 
 
 ==== tests/cases/conformance/decorators/invalid/decoratorOnInternalModule.ts (1 errors) ====
     declare function dec<T>(target: T): T;
     
     @dec
-    module M {
-           ~
+    ~
 !!! error TS1206: Decorators are not valid here.
+    module M {
         
     }

tests/baselines/reference/decoratorOnTypeAlias.errors.txt

@@ -5,7 +5,6 @@ tests/cases/conformance/decorators/invalid/decoratorOnTypeAlias.ts(3,1): error T
     declare function dec<T>(target: T): T;
     
     @dec
-    ~~~~
-    type T = number;
-    ~~~~~~~~~~~~~~~~
-!!! error TS1206: Decorators are not valid here.
+    ~
+!!! error TS1206: Decorators are not valid here.
+    type T = number;

tests/baselines/reference/decoratorOnVar.errors.txt

@@ -5,7 +5,6 @@ tests/cases/conformance/decorators/invalid/decoratorOnVar.ts(3,1): error TS1206:
     declare function dec<T>(target: T): T;
     
     @dec
-    ~~~~
-    var x: number;
-    ~~~~~~~~~~~~~~
-!!! error TS1206: Decorators are not valid here.
+    ~
+!!! error TS1206: Decorators are not valid here.
+    var x: number;

tests/baselines/reference/parseClassDeclarationInStrictModeByDefaultInES6.errors.txt

@@ -1,6 +1,6 @@
-tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(4,16): error TS1100: Invalid use of 'arguments' in strict mode.
-tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(5,17): error TS1100: Invalid use of 'eval' in strict mode.
-tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(6,9): error TS1100: Invalid use of 'arguments' in strict mode.
+tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(4,16): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
+tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(5,17): error TS1210: Invalid use of 'eval'. Class definitions are automatically in strict mode.
+tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(6,9): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeByDefaultInES6.ts(6,9): error TS2322: Type 'string' is not assignable to type 'IArguments'.
   Property 'callee' is missing in type 'String'.
 
@@ -11,13 +11,13 @@ tests/cases/conformance/es6/classDeclaration/parseClassDeclarationInStrictModeBy
         public implements() { }
         public foo(arguments: any) { }
                    ~~~~~~~~~
-!!! error TS1100: Invalid use of 'arguments' in strict mode.
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
         private bar(eval:any) {
                     ~~~~
-!!! error TS1100: Invalid use of 'eval' in strict mode.
+!!! error TS1210: Invalid use of 'eval'. Class definitions are automatically in strict mode.
             arguments = "hello";
             ~~~~~~~~~
-!!! error TS1100: Invalid use of 'arguments' in strict mode.
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
             ~~~~~~~~~
 !!! error TS2322: Type 'string' is not assignable to type 'IArguments'.
 !!! error TS2322:   Property 'callee' is missing in type 'String'.

tests/baselines/reference/parser509668.errors.txt

@@ -1,10 +1,13 @@
+tests/cases/conformance/parser/ecmascript5/RegressionTests/parser509668.ts(3,16): error TS1003: Identifier expected.
 tests/cases/conformance/parser/ecmascript5/RegressionTests/parser509668.ts(3,23): error TS1005: ',' expected.
 
 
-==== tests/cases/conformance/parser/ecmascript5/RegressionTests/parser509668.ts (1 errors) ====
+==== tests/cases/conformance/parser/ecmascript5/RegressionTests/parser509668.ts (2 errors) ====
     class Foo3 {
       // Doesn't work, but should
       constructor (public ...args: string[]) { }
+                   ~~~~~~
+!!! error TS1003: Identifier expected.
                           ~~~
 !!! error TS1005: ',' expected.
     }

tests/baselines/reference/parser509668.js

@@ -7,7 +7,7 @@ class Foo3 {
 //// [parser509668.js]
 var Foo3 = (function () {
     // Doesn't work, but should
-    function Foo3(public) {
+    function Foo3() {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
             args[_i - 1] = arguments[_i];

tests/baselines/reference/parser553699.errors.txt

@@ -1,4 +1,4 @@
-tests/cases/conformance/parser/ecmascript5/RegressionTests/parser553699.ts(3,21): error TS2304: Cannot find name 'public'.
+tests/cases/conformance/parser/ecmascript5/RegressionTests/parser553699.ts(3,21): error TS1110: Type expected.
 
 
 ==== tests/cases/conformance/parser/ecmascript5/RegressionTests/parser553699.ts (1 errors) ====
@@ -6,7 +6,7 @@ tests/cases/conformance/parser/ecmascript5/RegressionTests/parser553699.ts(3,21)
       constructor() { }
       public banana (x: public) { }
                         ~~~~~~
-!!! error TS2304: Cannot find name 'public'.
+!!! error TS1110: Type expected.
     }
     
     class Bar {

tests/baselines/reference/parser553699.js

@@ -12,7 +12,7 @@ class Bar {
 var Foo = (function () {
     function Foo() {
     }
-    Foo.prototype.banana = function (x) { };
+    Foo.prototype.banana = function (x, ) { };
     return Foo;
 })();
 var Bar = (function () {

tests/baselines/reference/parser642331.errors.txt

@@ -0,0 +1,10 @@
+tests/cases/conformance/parser/ecmascript5/RegressionTests/parser642331.ts(2,18): error TS1003: Identifier expected.
+
+
+==== tests/cases/conformance/parser/ecmascript5/RegressionTests/parser642331.ts (1 errors) ====
+    class test {
+        constructor (static) { }
+                     ~~~~~~
+!!! error TS1003: Identifier expected.
+    }
+    

tests/baselines/reference/parser642331.js

@@ -6,7 +6,7 @@ class test {
 
 //// [parser642331.js]
 var test = (function () {
-    function test(static) {
+    function test() {
     }
     return test;
 })();

tests/baselines/reference/parser642331.types

@@ -1,8 +0,0 @@
-=== tests/cases/conformance/parser/ecmascript5/RegressionTests/parser642331.ts ===
-class test {
->test : test
-
-    constructor (static) { }
->static : any
-}
-

tests/baselines/reference/parserRealSource11.errors.txt

@@ -115,6 +115,7 @@ tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(504,58): error
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(506,22): error TS2304: Cannot find name 'NodeType'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(507,58): error TS2304: Cannot find name 'TokenID'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(518,32): error TS2304: Cannot find name 'NodeType'.
+tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(520,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(525,27): error TS2304: Cannot find name 'Signature'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(527,36): error TS2304: Cannot find name 'TypeFlow'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(528,34): error TS2304: Cannot find name 'NodeType'.
@@ -246,6 +247,7 @@ tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(963,27): error
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(969,31): error TS2304: Cannot find name 'Symbol'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(977,32): error TS2304: Cannot find name 'Symbol'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(981,27): error TS2304: Cannot find name 'Type'.
+tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(985,29): error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(1004,44): error TS2304: Cannot find name 'hasFlag'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(1004,67): error TS2304: Cannot find name 'FncFlags'.
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(1005,57): error TS2304: Cannot find name 'FncFlags'.
@@ -515,7 +517,7 @@ tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(2356,30): error
 tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(2356,48): error TS2304: Cannot find name 'TokenID'.
 
 
-==== tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts (515 errors) ====
+==== tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts (517 errors) ====
     // Copyright (c) Microsoft. All rights reserved. Licensed under the Apache License, Version 2.0. 
     // See LICENSE.txt in the project root for complete license information.
     
@@ -1270,6 +1272,8 @@ tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(2356,48): error
 !!! error TS2304: Cannot find name 'NodeType'.
                          public target: AST,
                          public arguments: ASTList) {
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                 super(nodeType);
                 this.minChar = this.target.minChar;
             }
@@ -1997,6 +2001,8 @@ tests/cases/conformance/parser/ecmascript5/parserRealSource11.ts(2356,48): error
     
             constructor (public name: Identifier, public bod: ASTList, public isConstructor: boolean,
                          public arguments: ASTList, public vars: ASTList, public scopes: ASTList, public statics: ASTList,
+                                ~~~~~~~~~
+!!! error TS1210: Invalid use of 'arguments'. Class definitions are automatically in strict mode.
                 nodeType: number) {
     
                 super(nodeType);

tests/baselines/reference/sourceMapValidationDecorators.js

@@ -55,19 +55,14 @@ class Greeter {
 }
 
 //// [sourceMapValidationDecorators.js]
-var __decorate = this.__decorate || function (decorators, target, key, value) {
-    var kind = typeof (arguments.length == 2 ? value = target : value);
-    for (var i = decorators.length - 1; i >= 0; --i) {
-        var decorator = decorators[i];
-        switch (kind) {
-            case "function": value = decorator(value) || value; break;
-            case "number": decorator(target, key, value); break;
-            case "undefined": decorator(target, key); break;
-            case "object": value = decorator(target, key, value) || value; break;
-        }
+var __decorate = this.__decorate || (typeof Reflect === "object" && Reflect.decorate) || function (decorators, target, key, desc) {
+    switch (arguments.length) {
+        case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
+        case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
+        case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
     }
-    return value;
 };
+var __param = this.__param || function(index, decorator) { return function (target, key) { decorator(target, key, index); } };
 var Greeter = (function () {
     function Greeter(greeting) {
         var b = [];
@@ -93,15 +88,39 @@ var Greeter = (function () {
         configurable: true
     });
     Greeter.x1 = 10;
-    Object.defineProperty(Greeter.prototype, "greet", __decorate([PropertyDecorator1, PropertyDecorator2(40)], Greeter.prototype, "greet", Object.getOwnPropertyDescriptor(Greeter.prototype, "greet")));
-    __decorate([PropertyDecorator1, PropertyDecorator2(50)], Greeter.prototype, "x");
-    __decorate([ParameterDecorator1, ParameterDecorator2(70)], Greeter.prototype, "fn", 0);
-    __decorate([ParameterDecorator1, ParameterDecorator2(90)], Greeter.prototype, "greetings", 0);
-    Object.defineProperty(Greeter.prototype, "greetings", __decorate([PropertyDecorator1, PropertyDecorator2(80)], Greeter.prototype, "greetings", Object.getOwnPropertyDescriptor(Greeter.prototype, "greetings")));
-    __decorate([PropertyDecorator1, PropertyDecorator2(60)], Greeter, "x1");
-    __decorate([ParameterDecorator1, ParameterDecorator2(20)], Greeter, void 0, 0);
-    __decorate([ParameterDecorator1, ParameterDecorator2(30)], Greeter, void 0, 1);
-    Greeter = __decorate([ClassDecorator1, ClassDecorator2(10)], Greeter);
+    Object.defineProperty(Greeter.prototype, "greet",
+        __decorate([
+            PropertyDecorator1,
+            PropertyDecorator2(40)
+        ], Greeter.prototype, "greet", Object.getOwnPropertyDescriptor(Greeter.prototype, "greet")));
+    __decorate([
+        PropertyDecorator1,
+        PropertyDecorator2(50)
+    ], Greeter.prototype, "x");
+    Object.defineProperty(Greeter.prototype, "fn",
+        __decorate([
+            __param(0, ParameterDecorator1),
+            __param(0, ParameterDecorator2(70))
+        ], Greeter.prototype, "fn", Object.getOwnPropertyDescriptor(Greeter.prototype, "fn")));
+    Object.defineProperty(Greeter.prototype, "greetings",
+        __decorate([
+            PropertyDecorator1,
+            PropertyDecorator2(80),
+            __param(0, ParameterDecorator1),
+            __param(0, ParameterDecorator2(90))
+        ], Greeter.prototype, "greetings", Object.getOwnPropertyDescriptor(Greeter.prototype, "greetings")));
+    __decorate([
+        PropertyDecorator1,
+        PropertyDecorator2(60)
+    ], Greeter, "x1");
+    Greeter = __decorate([
+        ClassDecorator1,
+        ClassDecorator2(10),
+        __param(0, ParameterDecorator1),
+        __param(0, ParameterDecorator2(20)),
+        __param(1, ParameterDecorator1),
+        __param(1, ParameterDecorator2(30))
+    ], Greeter);
     return Greeter;
 })();
 //# sourceMappingURL=sourceMapValidationDecorators.js.map

tests/baselines/reference/sourceMapValidationDecorators.js.map

@@ -1,2 +1,2 @@
 //// [sourceMapValidationDecorators.js.map]
-{"version":3,"file":"sourceMapValidationDecorators.js","sourceRoot":"","sources":["sourceMapValidationDecorators.ts"],"names":["Greeter","Greeter.constructor","Greeter.greet","Greeter.fn","Greeter.greetings"],"mappings":";;;;;;;;;;;;;AAOA;IAGIA,iBAGSA,QAAgBA;QAEvBC,WAEcA;aAFdA,WAEcA,CAFdA,sBAEcA,CAFdA,IAEcA;YAFdA,0BAEcA;;QAJPA,aAAQA,GAARA,QAAQA,CAAQA;IAKzBA,CAACA;IAIDD,uBAAKA,GAFLA;QAGIE,MAAMA,CAACA,MAAMA,GAAGA,IAAIA,CAACA,QAAQA,GAAGA,OAAOA,CAACA;IAC5CA,CAACA;IAUOF,oBAAEA,GAAVA,UAGEA,CAASA;QACPG,MAAMA,CAACA,IAAIA,CAACA,QAAQA,CAACA;IACzBA,CAACA;IAEDH,sBAEIA,8BAASA;aAFbA;YAGII,MAAMA,CAACA,IAAIA,CAACA,QAAQA,CAACA;QACzBA,CAACA;aAEDJ,UAGEA,SAAiBA;YACfI,IAAIA,CAACA,QAAQA,GAAGA,SAASA,CAACA;QAC9BA,CAACA;;;OAPAJ;IAbcA,UAAEA,GAAWA,EAAEA,CAACA;IAZ/BA,sBAEAA,0BAAKA,cAFJA,kBAAkBA,EAClBA,kBAAkBA,CAACA,EAAEA,CAACA,GACvBA,0BAAKA,kCAALA,0BAAKA,IAEJA;IAEDA,YAACA,kBAAkBA,EAClBA,kBAAkBA,CAACA,EAAEA,CAACA,GACfA,sBAACA,EAASA;IAOhBA,YAACA,mBAAmBA,EACnBA,mBAAmBA,CAACA,EAAEA,CAACA,GACxBA,0BAACA,EAAQA;IAWTA,YAACA,mBAAmBA,EACnBA,mBAAmBA,CAACA,EAAEA,CAACA,GACxBA,iCAASA,EAAQA;IATnBA,sBAEIA,8BAASA,cAFZA,kBAAkBA,EAClBA,kBAAkBA,CAACA,EAAEA,CAACA,GACnBA,8BAASA,kCAATA,8BAASA,IAEZA;IAfDA,YAACA,kBAAkBA,EAClBA,kBAAkBA,CAACA,EAAEA,CAACA,GACRA,aAAEA,EAAcA;IArB7BA,YAACA,mBAAmBA,EACnBA,mBAAmBA,CAACA,EAAEA,CAACA,GACjBA,kBAAQA,EAAQA;IAEvBA,YAACA,mBAAmBA,EACnBA,mBAAmBA,CAACA,EAAEA,CAACA,GACrBA,kBAACA,EAAUA;IAVpBA,sBAACA,eAAeA,EACfA,eAAeA,CAACA,EAAEA,CAACA,YA6CnBA;IAADA,cAACA;AAADA,CAACA,AA9CD,IA8CC"}
+{"version":3,"file":"sourceMapValidationDecorators.js","sourceRoot":"","sources":["sourceMapValidationDecorators.ts"],"names":["Greeter","Greeter.constructor","Greeter.greet","Greeter.fn","Greeter.greetings"],"mappings":";;;;;;;;AAOA;IAGIA,iBAGSA,QAAgBA;QAEvBC,WAEcA;aAFdA,WAEcA,CAFdA,sBAEcA,CAFdA,IAEcA;YAFdA,0BAEcA;;QAJPA,aAAQA,GAARA,QAAQA,CAAQA;IAKzBA,CAACA;IAIDD,uBAAKA,GAFLA;QAGIE,MAAMA,CAACA,MAAMA,GAAGA,IAAIA,CAACA,QAAQA,GAAGA,OAAOA,CAACA;IAC5CA,CAACA;IAUOF,oBAAEA,GAAVA,UAGEA,CAASA;QACPG,MAAMA,CAACA,IAAIA,CAACA,QAAQA,CAACA;IACzBA,CAACA;IAEDH,sBAEIA,8BAASA;aAFbA;YAGII,MAAMA,CAACA,IAAIA,CAACA,QAAQA,CAACA;QACzBA,CAACA;aAEDJ,UAGEA,SAAiBA;YACfI,IAAIA,CAACA,QAAQA,GAAGA,SAASA,CAACA;QAC9BA,CAACA;;;OAPAJ;IAbcA,UAAEA,GAAWA,EAAEA,CAACA;IAZ/BA,sBAEAA,0BAAKA;;YAFJA,kBAAkBA;YAClBA,kBAAkBA,CAACA,EAAEA,CAACA;WACvBA,0BAAKA,kCAALA,0BAAKA,IAEJA;IAEDA;QAACA,kBAAkBA;QAClBA,kBAAkBA,CAACA,EAAEA,CAACA;OACfA,sBAACA,EAASA;IAMlBA,sBAAQA,uBAAEA;;YACRA,WAACA,mBAAmBA,CAAAA;YACpBA,WAACA,mBAAmBA,CAACA,EAAEA,CAACA,CAAAA;WAFlBA,uBAAEA,kCAAFA,uBAAEA,IAKTA;IAEDA,sBAEIA,8BAASA;;YAFZA,kBAAkBA;YAClBA,kBAAkBA,CAACA,EAAEA,CAACA;YAMrBA,WAACA,mBAAmBA,CAAAA;YACpBA,WAACA,mBAAmBA,CAACA,EAAEA,CAACA,CAAAA;WANtBA,8BAASA,kCAATA,8BAASA,IAEZA;IAfDA;QAACA,kBAAkBA;QAClBA,kBAAkBA,CAACA,EAAEA,CAACA;OACRA,aAAEA,EAAcA;IAzBnCA;QAACA,eAAeA;QACfA,eAAeA,CAACA,EAAEA,CAACA;QAGdA,WAACA,mBAAmBA,CAAAA;QACpBA,WAACA,mBAAmBA,CAACA,EAAEA,CAACA,CAAAA;QAGxBA,WAACA,mBAAmBA,CAAAA;QACpBA,WAACA,mBAAmBA,CAACA,EAAEA,CAACA,CAAAA;gBAqC7BA;IAADA,cAACA;AAADA,CAACA,AA9CD,IA8CC"}

tests/baselines/reference/superCallsInConstructor.errors.txt

@@ -1,7 +1,8 @@
+tests/cases/compiler/superCallsInConstructor.ts(12,9): error TS1101: 'with' statements are not allowed in strict mode.
 tests/cases/compiler/superCallsInConstructor.ts(12,14): error TS2410: All symbols within a 'with' block will be resolved to 'any'.
 
 
-==== tests/cases/compiler/superCallsInConstructor.ts (1 errors) ====
+==== tests/cases/compiler/superCallsInConstructor.ts (2 errors) ====
     class C {
         foo() {}
         bar() {}
@@ -14,6 +15,8 @@ tests/cases/compiler/superCallsInConstructor.ts(12,14): error TS2410: All symbol
     class Derived extends Base {
         constructor() {
             with(new C()) {
+            ~~~~
+!!! error TS1101: 'with' statements are not allowed in strict mode.
                  ~~~~~~~
 !!! error TS2410: All symbols within a 'with' block will be resolved to 'any'.
                 foo();

tests/baselines/reference/varArgConstructorMemberParameter.errors.txt

@@ -1,7 +1,8 @@
+tests/cases/compiler/varArgConstructorMemberParameter.ts(10,18): error TS1003: Identifier expected.
 tests/cases/compiler/varArgConstructorMemberParameter.ts(10,25): error TS1005: ',' expected.
 
 
-==== tests/cases/compiler/varArgConstructorMemberParameter.ts (1 errors) ====
+==== tests/cases/compiler/varArgConstructorMemberParameter.ts (2 errors) ====
     class Foo1 {
         constructor (...args: string[]) { }
     }
@@ -12,6 +13,8 @@ tests/cases/compiler/varArgConstructorMemberParameter.ts(10,25): error TS1005: '
     
     class Foo3 {
         constructor (public ...args: string[]) { }
+                     ~~~~~~
+!!! error TS1003: Identifier expected.
                             ~~~
 !!! error TS1005: ',' expected.
     }

tests/baselines/reference/varArgConstructorMemberParameter.js

@@ -29,7 +29,7 @@ var Foo2 = (function () {
     return Foo2;
 })();
 var Foo3 = (function () {
-    function Foo3(public) {
+    function Foo3() {
         var args = [];
         for (var _i = 1; _i < arguments.length; _i++) {
             args[_i - 1] = arguments[_i];

tests/cases/compiler/classExpressionWithDecorator1.ts

@@ -0,0 +1 @@
+var v = @decorate class C { static p = 1 };

tests/cases/compiler/classExpressionWithStaticProperties1.ts

@@ -0,0 +1 @@
+var v = class C { static a = 1; static b = 2 };

tests/cases/compiler/classExpressionWithStaticProperties2.ts

@@ -0,0 +1 @@
+var v = class C { static a = 1; static b };

tests/cases/compiler/classExpressionWithStaticPropertiesES61.ts

@@ -0,0 +1,2 @@
+//@target: es6
+var v = class C { static a = 1; static b = 2 };

tests/cases/compiler/classExpressionWithStaticPropertiesES62.ts

@@ -0,0 +1,2 @@
+//@target: es6
+var v = class C { static a = 1; static b };

tests/cases/fourslash/getOccurrencesDeclare1.ts

@@ -44,7 +44,6 @@
 ////            protected prot1;
 ////
 ////            protected constructor(public public, protected protected, private private) {
-////                public = private = protected;
 ////            }
 ////        }
 ////    }

tests/cases/fourslash/getOccurrencesDeclare3.ts

@@ -48,7 +48,6 @@
 ////            protected prot1;
 ////
 ////            protected constructor(public public, protected protected, private private) {
-////                public = private = protected;
 ////            }
 ////        }
 ////    }