Function and constructor types in the syntax tree.
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bdfb5697af
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d948510425
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@ -93,7 +93,9 @@ module ts {
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return (<Identifier>node.name).text;
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}
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switch (node.kind) {
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case SyntaxKind.ConstructorType:
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case SyntaxKind.Constructor: return "__constructor";
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case SyntaxKind.FunctionType:
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case SyntaxKind.CallSignature: return "__call";
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case SyntaxKind.ConstructSignature: return "__new";
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case SyntaxKind.IndexSignature: return "__index";
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@ -114,8 +116,11 @@ module ts {
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}
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// Report errors every position with duplicate declaration
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// Report errors on previous encountered declarations
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var message = symbol.flags & SymbolFlags.BlockScopedVariable ? Diagnostics.Cannot_redeclare_block_scoped_variable_0 : Diagnostics.Duplicate_identifier_0;
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forEach(symbol.declarations, (declaration) => {
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var message = symbol.flags & SymbolFlags.BlockScopedVariable
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? Diagnostics.Cannot_redeclare_block_scoped_variable_0
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: Diagnostics.Duplicate_identifier_0;
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forEach(symbol.declarations, declaration => {
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file.semanticErrors.push(createDiagnosticForNode(declaration.name, message, getDisplayName(declaration)));
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});
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file.semanticErrors.push(createDiagnosticForNode(node.name, message, getDisplayName(node)));
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@ -233,6 +238,8 @@ module ts {
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declareModuleMember(node, symbolKind, symbolExcludes);
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break;
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}
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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case SyntaxKind.CallSignature:
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case SyntaxKind.ConstructSignature:
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case SyntaxKind.IndexSignature:
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@ -294,6 +301,13 @@ module ts {
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}
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}
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function bindFunctionOrConstructorType(node: SignatureDeclaration) {
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var symbolKind = node.kind === SyntaxKind.FunctionType ? SymbolFlags.CallSignature : SymbolFlags.ConstructSignature;
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var symbol = createSymbol(symbolKind, getDeclarationName(node));
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addDeclarationToSymbol(symbol, node, symbolKind);
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bindChildren(node, symbolKind, /*isBlockScopeContainer:*/ false);
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}
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function bindAnonymousDeclaration(node: Node, symbolKind: SymbolFlags, name: string, isBlockScopeContainer: boolean) {
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var symbol = createSymbol(symbolKind, name);
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addDeclarationToSymbol(symbol, node, symbolKind);
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@ -358,12 +372,12 @@ module ts {
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case SyntaxKind.CallSignature:
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bindDeclaration(<Declaration>node, SymbolFlags.CallSignature, 0, /*isBlockScopeContainer*/ false);
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break;
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case SyntaxKind.Method:
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bindDeclaration(<Declaration>node, SymbolFlags.Method, SymbolFlags.MethodExcludes, /*isBlockScopeContainer*/ true);
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break;
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case SyntaxKind.ConstructSignature:
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bindDeclaration(<Declaration>node, SymbolFlags.ConstructSignature, 0, /*isBlockScopeContainer*/ true);
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break;
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case SyntaxKind.Method:
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bindDeclaration(<Declaration>node, SymbolFlags.Method, SymbolFlags.MethodExcludes, /*isBlockScopeContainer*/ true);
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break;
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case SyntaxKind.IndexSignature:
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bindDeclaration(<Declaration>node, SymbolFlags.IndexSignature, 0, /*isBlockScopeContainer*/ false);
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break;
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@ -379,6 +393,12 @@ module ts {
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case SyntaxKind.SetAccessor:
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bindDeclaration(<Declaration>node, SymbolFlags.SetAccessor, SymbolFlags.SetAccessorExcludes, /*isBlockScopeContainer*/ true);
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break;
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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bindFunctionOrConstructorType(<SignatureDeclaration>node);
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break;
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case SyntaxKind.TypeLiteral:
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bindAnonymousDeclaration(node, SymbolFlags.TypeLiteral, "__type", /*isBlockScopeContainer*/ false);
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break;
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@ -2523,6 +2523,8 @@ module ts {
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for (var i = 0, len = symbol.declarations.length; i < len; i++) {
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var node = symbol.declarations[i];
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switch (node.kind) {
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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case SyntaxKind.FunctionDeclaration:
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case SyntaxKind.Method:
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case SyntaxKind.Constructor:
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@ -2961,6 +2963,21 @@ module ts {
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return links.resolvedType;
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}
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function getTypefromFunctionOrConstructorTypeNode(node: SignatureDeclaration): Type {
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var links = getNodeLinks(node);
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if (!links.resolvedType) {
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var symbol = new Symbol(SymbolFlags.TypeLiteral, "__type");
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symbol.members = {};
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symbol.members[node.kind === SyntaxKind.FunctionType ? "__call" : "__new"] = node.symbol;
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symbol.declarations = [node.symbol.declarations[0]];
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node.symbol.parent = symbol;
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links.resolvedType = createObjectType(TypeFlags.Anonymous, symbol);
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}
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return links.resolvedType;
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}
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function getTypeFromTypeLiteralNode(node: TypeLiteralNode): Type {
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var links = getNodeLinks(node);
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if (!links.resolvedType) {
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@ -3011,6 +3028,9 @@ module ts {
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return getTypeFromUnionTypeNode(<UnionTypeNode>node);
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case SyntaxKind.ParenType:
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return getTypeFromTypeNode((<ParenTypeNode>node).type);
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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return getTypefromFunctionOrConstructorTypeNode(<SignatureDeclaration>node);
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case SyntaxKind.TypeLiteral:
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return getTypeFromTypeLiteralNode(<TypeLiteralNode>node);
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// This function assumes that an identifier or qualified name is a type expression
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@ -5858,7 +5878,7 @@ module ts {
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}
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if (node.kind === SyntaxKind.NewExpression) {
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var declaration = signature.declaration;
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if (declaration && (declaration.kind !== SyntaxKind.Constructor && declaration.kind !== SyntaxKind.ConstructSignature)) {
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if (declaration && (declaration.kind !== SyntaxKind.Constructor && declaration.kind !== SyntaxKind.ConstructSignature && declaration.kind !== SyntaxKind.ConstructorType)) {
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// When resolved signature is a call signature (and not a construct signature) the result type is any
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if (compilerOptions.noImplicitAny) {
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error(node, Diagnostics.new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type);
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@ -8275,6 +8295,8 @@ module ts {
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return checkParameter(<ParameterDeclaration>node);
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case SyntaxKind.Property:
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return checkPropertyDeclaration(<PropertyDeclaration>node);
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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case SyntaxKind.CallSignature:
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case SyntaxKind.ConstructSignature:
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case SyntaxKind.IndexSignature:
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@ -9047,7 +9069,9 @@ module ts {
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function writeTypeAtLocation(location: Node, enclosingDeclaration: Node, flags: TypeFormatFlags, writer: SymbolWriter) {
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// Get type of the symbol if this is the valid symbol otherwise get type at location
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var symbol = getSymbolOfNode(location);
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var type = symbol && !(symbol.flags & SymbolFlags.TypeLiteral) ? getTypeOfSymbol(symbol) : getTypeFromTypeNode(location);
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var type = symbol && !(symbol.flags & (SymbolFlags.TypeLiteral | SymbolFlags.CallSignature | SymbolFlags.ConstructSignature))
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? getTypeOfSymbol(symbol)
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: getTypeFromTypeNode(location);
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getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
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}
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@ -205,6 +205,8 @@ module ts {
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return child((<PropertyDeclaration>node).name) ||
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child((<PropertyDeclaration>node).type) ||
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child((<PropertyDeclaration>node).initializer);
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case SyntaxKind.FunctionType:
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case SyntaxKind.ConstructorType:
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case SyntaxKind.CallSignature:
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case SyntaxKind.ConstructSignature:
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case SyntaxKind.IndexSignature:
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@ -1882,16 +1884,16 @@ module ts {
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return finishNode(node);
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}
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function parseFunctionType(signatureKind: SyntaxKind): TypeLiteralNode {
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var node = <TypeLiteralNode>createNode(SyntaxKind.TypeLiteral);
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var member = <SignatureDeclaration>createNode(signatureKind);
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var sig = parseSignature(signatureKind, SyntaxKind.EqualsGreaterThanToken, /* returnTokenRequired */ true);
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function parseFunctionType(typeKind: SyntaxKind): SignatureDeclaration {
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var member = <SignatureDeclaration>createNode(typeKind);
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var sig = parseSignature(typeKind === SyntaxKind.FunctionType ? SyntaxKind.CallSignature : SyntaxKind.ConstructSignature,
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SyntaxKind.EqualsGreaterThanToken, /* returnTokenRequired */ true);
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member.typeParameters = sig.typeParameters;
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member.parameters = sig.parameters;
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member.type = sig.type;
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finishNode(member);
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node.members = createNodeArray(member);
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return finishNode(node);
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return member;
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}
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function parseKeywordAndNoDot(): Node {
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@ -2011,10 +2013,10 @@ module ts {
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function parseType(): TypeNode {
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if (isStartOfFunctionType()) {
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return parseFunctionType(SyntaxKind.CallSignature);
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return parseFunctionType(SyntaxKind.FunctionType);
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}
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if (token === SyntaxKind.NewKeyword) {
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return parseFunctionType(SyntaxKind.ConstructSignature);
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return parseFunctionType(SyntaxKind.ConstructorType);
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}
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return parseUnionType();
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}
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@ -155,6 +155,8 @@ module ts {
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IndexSignature,
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// Type
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TypeReference,
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FunctionType,
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ConstructorType,
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TypeQuery,
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TypeLiteral,
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ArrayType,
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@ -1357,4 +1359,4 @@ module ts {
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useCaseSensitiveFileNames(): boolean;
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getNewLine(): string;
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}
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}
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}
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