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Elaborate into arrow return expressions and array types (#27040)

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* Dive into simple arrow functions when elaborating errors

* Dive into array literals as though they were tuples when elaborating, if possible

* Make parameter required

* Remove misleading errors by deeply tuplefying

* Remove lib related spans
This commit is contained in:
Wesley Wigham 2018-09-17 16:45:54 -07:00 committed by GitHub
parent 577ee49106
commit f6321bf6d5
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GPG key ID: 4AEE18F83AFDEB23
55 changed files with 517 additions and 397 deletions
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87
src/compiler/checker.ts
View file

@ -10636,6 +10636,8 @@ namespace ts {
return elaborateArrayLiteral(node as ArrayLiteralExpression, source, target, relation);
case SyntaxKind.JsxAttributes:
return elaborateJsxAttributes(node as JsxAttributes, source, target, relation);
case SyntaxKind.ArrowFunction:
return elaborateArrowFunction(node as ArrowFunction, source, target, relation);
}
return false;
}
@ -10661,6 +10663,46 @@ namespace ts {
return false;
}
function elaborateArrowFunction(node: ArrowFunction, source: Type, target: Type, relation: Map<RelationComparisonResult>): boolean {
// Don't elaborate blocks
if (isBlock(node.body)) {
return false;
}
// Or functions with annotated parameter types
if (some(node.parameters, ts.hasType)) {
return false;
}
const sourceSig = getSingleCallSignature(source);
if (!sourceSig) {
return false;
}
const targetSignatures = getSignaturesOfType(target, SignatureKind.Call);
if (!length(targetSignatures)) {
return false;
}
const returnExpression = node.body;
const sourceReturn = getReturnTypeOfSignature(sourceSig);
const targetReturn = getUnionType(map(targetSignatures, getReturnTypeOfSignature));
if (!checkTypeRelatedTo(sourceReturn, targetReturn, relation, /*errorNode*/ undefined)) {
const elaborated = returnExpression && elaborateError(returnExpression, sourceReturn, targetReturn, relation, /*headMessage*/ undefined);
if (elaborated) {
return elaborated;
}
const resultObj: { error?: Diagnostic } = {};
checkTypeRelatedTo(sourceReturn, targetReturn, relation, returnExpression, /*message*/ undefined, /*chain*/ undefined, resultObj);
if (resultObj.error) {
if (target.symbol && length(target.symbol.declarations)) {
addRelatedInfo(resultObj.error, createDiagnosticForNode(
target.symbol.declarations[0],
Diagnostics.The_expected_type_comes_from_the_return_type_of_this_signature,
));
}
return true;
}
}
return false;
}
type ElaborationIterator = IterableIterator<{ errorNode: Node, innerExpression: Expression | undefined, nameType: Type, errorMessage?: DiagnosticMessage | undefined }>;
/**
* For every element returned from the iterator, checks that element to issue an error on a property of that element's type
@ -10674,7 +10716,7 @@ namespace ts {
const { errorNode: prop, innerExpression: next, nameType, errorMessage } = status.value;
const sourcePropType = getIndexedAccessType(source, nameType, /*accessNode*/ undefined, errorType);
const targetPropType = getIndexedAccessType(target, nameType, /*accessNode*/ undefined, errorType);
if (sourcePropType !== errorType && targetPropType !== errorType && !isTypeAssignableTo(sourcePropType, targetPropType)) {
if (sourcePropType !== errorType && targetPropType !== errorType && !checkTypeRelatedTo(sourcePropType, targetPropType, relation, /*errorNode*/ undefined)) {
const elaborated = next && elaborateError(next, sourcePropType, targetPropType, relation, /*headMessage*/ undefined);
if (elaborated) {
reportedError = true;
@ -10699,19 +10741,22 @@ namespace ts {
const indexInfo = isTypeAssignableToKind(nameType, TypeFlags.NumberLike) && getIndexInfoOfType(target, IndexKind.Number) ||
getIndexInfoOfType(target, IndexKind.String) ||
undefined;
if (indexInfo && indexInfo.declaration) {
if (indexInfo && indexInfo.declaration && !getSourceFileOfNode(indexInfo.declaration).hasNoDefaultLib) {
issuedElaboration = true;
addRelatedInfo(reportedDiag, createDiagnosticForNode(indexInfo.declaration, Diagnostics.The_expected_type_comes_from_this_index_signature));
}
}
if (!issuedElaboration && (targetProp && length(targetProp.declarations) || target.symbol && length(target.symbol.declarations))) {
addRelatedInfo(reportedDiag, createDiagnosticForNode(
targetProp && length(targetProp.declarations) ? targetProp.declarations[0] : target.symbol.declarations[0],
Diagnostics.The_expected_type_comes_from_property_0_which_is_declared_here_on_type_1,
propertyName && !(nameType.flags & TypeFlags.UniqueESSymbol) ? unescapeLeadingUnderscores(propertyName) : typeToString(nameType),
typeToString(target)
));
const targetNode = targetProp && length(targetProp.declarations) ? targetProp.declarations[0] : target.symbol.declarations[0];
if (!getSourceFileOfNode(targetNode).hasNoDefaultLib) {
addRelatedInfo(reportedDiag, createDiagnosticForNode(
targetNode,
Diagnostics.The_expected_type_comes_from_property_0_which_is_declared_here_on_type_1,
propertyName && !(nameType.flags & TypeFlags.UniqueESSymbol) ? unescapeLeadingUnderscores(propertyName) : typeToString(nameType),
typeToString(target)
));
}
}
}
reportedError = true;
@ -10750,6 +10795,11 @@ namespace ts {
if (isTupleLikeType(source)) {
return elaborateElementwise(generateLimitedTupleElements(node, target), source, target, relation);
}
// recreate a tuple from the elements, if possible
const tupleizedType = checkArrayLiteral(node, CheckMode.Contextual, /*forceTuple*/ true);
if (isTupleLikeType(tupleizedType)) {
return elaborateElementwise(generateLimitedTupleElements(node, target), tupleizedType, target, relation);
}
return false;
}
@ -16981,7 +17031,7 @@ namespace ts {
(node.kind === SyntaxKind.BinaryExpression && (<BinaryExpression>node).operatorToken.kind === SyntaxKind.EqualsToken);
}
function checkArrayLiteral(node: ArrayLiteralExpression, checkMode: CheckMode | undefined): Type {
function checkArrayLiteral(node: ArrayLiteralExpression, checkMode: CheckMode | undefined, forceTuple: boolean | undefined): Type {
const elements = node.elements;
const elementCount = elements.length;
let hasNonEndingSpreadElement = false;
@ -17003,7 +17053,7 @@ namespace ts {
// get the contextual element type from it. So we do something similar to
// getContextualTypeForElementExpression, which will crucially not error
// if there is no index type / iterated type.
const restArrayType = checkExpression((<SpreadElement>e).expression, checkMode);
const restArrayType = checkExpression((<SpreadElement>e).expression, checkMode, forceTuple);
const restElementType = getIndexTypeOfType(restArrayType, IndexKind.Number) ||
getIteratedTypeOrElementType(restArrayType, /*errorNode*/ undefined, /*allowStringInput*/ false, /*allowAsyncIterables*/ false, /*checkAssignability*/ false);
if (restElementType) {
@ -17012,7 +17062,7 @@ namespace ts {
}
else {
const elementContextualType = getContextualTypeForElementExpression(contextualType, index);
const type = checkExpressionForMutableLocation(e, checkMode, elementContextualType);
const type = checkExpressionForMutableLocation(e, checkMode, elementContextualType, forceTuple);
elementTypes.push(type);
}
if (index < elementCount - 1 && e.kind === SyntaxKind.SpreadElement) {
@ -17050,6 +17100,9 @@ namespace ts {
}
return createTupleType(elementTypes, minLength, hasRestElement);
}
else if (forceTuple) {
return createTupleType(elementTypes, minLength, hasRestElement);
}
}
return getArrayLiteralType(elementTypes, UnionReduction.Subtype);
}
@ -22097,11 +22150,11 @@ namespace ts {
return false;
}
function checkExpressionForMutableLocation(node: Expression, checkMode: CheckMode | undefined, contextualType?: Type): Type {
function checkExpressionForMutableLocation(node: Expression, checkMode: CheckMode | undefined, contextualType?: Type, forceTuple?: boolean): Type {
if (arguments.length === 2) {
contextualType = getContextualType(node);
}
const type = checkExpression(node, checkMode);
const type = checkExpression(node, checkMode, forceTuple);
return isTypeAssertion(node) ? type :
getWidenedLiteralLikeTypeForContextualType(type, contextualType);
}
@ -22201,13 +22254,13 @@ namespace ts {
// object, it serves as an indicator that all contained function and arrow expressions should be considered to
// have the wildcard function type; this form of type check is used during overload resolution to exclude
// contextually typed function and arrow expressions in the initial phase.
function checkExpression(node: Expression | QualifiedName, checkMode?: CheckMode): Type {
function checkExpression(node: Expression | QualifiedName, checkMode?: CheckMode, forceTuple?: boolean): Type {
let type: Type;
if (node.kind === SyntaxKind.QualifiedName) {
type = checkQualifiedName(<QualifiedName>node);
}
else {
const uninstantiatedType = checkExpressionWorker(node, checkMode);
const uninstantiatedType = checkExpressionWorker(node, checkMode, forceTuple);
type = instantiateTypeWithSingleGenericCallSignature(node, uninstantiatedType, checkMode);
}
@ -22237,7 +22290,7 @@ namespace ts {
return checkExpression(node.expression, checkMode);
}
function checkExpressionWorker(node: Expression, checkMode: CheckMode | undefined): Type {
function checkExpressionWorker(node: Expression, checkMode: CheckMode | undefined, forceTuple?: boolean): Type {
switch (node.kind) {
case SyntaxKind.Identifier:
return checkIdentifier(<Identifier>node);
@ -22262,7 +22315,7 @@ namespace ts {
case SyntaxKind.RegularExpressionLiteral:
return globalRegExpType;
case SyntaxKind.ArrayLiteralExpression:
return checkArrayLiteral(<ArrayLiteralExpression>node, checkMode);
return checkArrayLiteral(<ArrayLiteralExpression>node, checkMode, forceTuple);
case SyntaxKind.ObjectLiteralExpression:
return checkObjectLiteral(<ObjectLiteralExpression>node, checkMode);
case SyntaxKind.PropertyAccessExpression:

4
src/compiler/diagnosticMessages.json
View file

@ -3890,6 +3890,10 @@
"category": "Message",
"code": 6501
},
"The expected type comes from the return type of this signature.": {
"category": "Message",
"code": 6502
},
"Variable '{0}' implicitly has an '{1}' type.": {
"category": "Error",

36
tests/baselines/reference/arrayLiteralTypeInference.errors.txt
View file

@ -1,14 +1,14 @@
tests/cases/compiler/arrayLiteralTypeInference.ts(14,14): error TS2322: Type '({ id: number; trueness: boolean; } | { id: number; name: string; })[]' is not assignable to type 'Action[]'.
Type '{ id: number; trueness: boolean; } | { id: number; name: string; }' is not assignable to type 'Action'.
Type '{ id: number; trueness: boolean; }' is not assignable to type 'Action'.
Object literal may only specify known properties, and 'trueness' does not exist in type 'Action'.
tests/cases/compiler/arrayLiteralTypeInference.ts(31,18): error TS2322: Type '({ id: number; trueness: boolean; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
Type '{ id: number; trueness: boolean; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
Type '{ id: number; trueness: boolean; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'trueness' does not exist in type '{ id: number; }'.
tests/cases/compiler/arrayLiteralTypeInference.ts(14,14): error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type 'Action'.
Object literal may only specify known properties, and 'trueness' does not exist in type 'Action'.
tests/cases/compiler/arrayLiteralTypeInference.ts(15,14): error TS2322: Type '{ id: number; name: string; }' is not assignable to type 'Action'.
Object literal may only specify known properties, and 'name' does not exist in type 'Action'.
tests/cases/compiler/arrayLiteralTypeInference.ts(31,18): error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'trueness' does not exist in type '{ id: number; }'.
tests/cases/compiler/arrayLiteralTypeInference.ts(32,18): error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
==== tests/cases/compiler/arrayLiteralTypeInference.ts (2 errors) ====
==== tests/cases/compiler/arrayLiteralTypeInference.ts (4 errors) ====
class Action {
id: number;
}
@ -24,11 +24,12 @@ tests/cases/compiler/arrayLiteralTypeInference.ts(31,18): error TS2322: Type '({
var x1: Action[] = [
{ id: 2, trueness: false },
~~~~~~~~~~~~~~~
!!! error TS2322: Type '({ id: number; trueness: boolean; } | { id: number; name: string; })[]' is not assignable to type 'Action[]'.
!!! error TS2322: Type '{ id: number; trueness: boolean; } | { id: number; name: string; }' is not assignable to type 'Action'.
!!! error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type 'Action'.
!!! error TS2322: Object literal may only specify known properties, and 'trueness' does not exist in type 'Action'.
!!! error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type 'Action'.
!!! error TS2322: Object literal may only specify known properties, and 'trueness' does not exist in type 'Action'.
{ id: 3, name: "three" }
~~~~~~~~~~~~~
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type 'Action'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type 'Action'.
]
var x2: Action[] = [
@ -46,11 +47,12 @@ tests/cases/compiler/arrayLiteralTypeInference.ts(31,18): error TS2322: Type '({
[
{ id: 2, trueness: false },
~~~~~~~~~~~~~~~
!!! error TS2322: Type '({ id: number; trueness: boolean; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type '{ id: number; trueness: boolean; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'trueness' does not exist in type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; trueness: boolean; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'trueness' does not exist in type '{ id: number; }'.
{ id: 3, name: "three" }
~~~~~~~~~~~~~
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
]
var z2: { id: number }[] =

23
tests/baselines/reference/arrayLiterals.errors.txt
View file

@ -1,11 +1,10 @@
tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts(24,77): error TS2322: Type '({ a: string; b: number; c: string; } | { a: string; b: number; c: number; })[]' is not assignable to type '{ [n: number]: { a: string; b: number; }; }'.
Index signatures are incompatible.
Type '{ a: string; b: number; c: string; } | { a: string; b: number; c: number; }' is not assignable to type '{ a: string; b: number; }'.
Type '{ a: string; b: number; c: string; }' is not assignable to type '{ a: string; b: number; }'.
Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts(24,77): error TS2322: Type '{ a: string; b: number; c: string; }' is not assignable to type '{ a: string; b: number; }'.
Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts(24,101): error TS2322: Type '{ a: string; b: number; c: number; }' is not assignable to type '{ a: string; b: number; }'.
Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
==== tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts (1 errors) ====
==== tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts (2 errors) ====
// Empty array literal with no contextual type has type Undefined[]
var arr1= [[], [1], ['']];
@ -31,11 +30,13 @@ tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts(24,77): error
// Contextual type C with numeric index signature makes array literal of EveryType E of type BCT(E,C)[]
var context1: { [n: number]: { a: string; b: number; }; } = [{ a: '', b: 0, c: '' }, { a: "", b: 3, c: 0 }];
~~~~~
!!! error TS2322: Type '({ a: string; b: number; c: string; } | { a: string; b: number; c: number; })[]' is not assignable to type '{ [n: number]: { a: string; b: number; }; }'.
!!! error TS2322: Index signatures are incompatible.
!!! error TS2322: Type '{ a: string; b: number; c: string; } | { a: string; b: number; c: number; }' is not assignable to type '{ a: string; b: number; }'.
!!! error TS2322: Type '{ a: string; b: number; c: string; }' is not assignable to type '{ a: string; b: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
!!! error TS2322: Type '{ a: string; b: number; c: string; }' is not assignable to type '{ a: string; b: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
!!! related TS6501 tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts:24:17: The expected type comes from this index signature.
~~~~
!!! error TS2322: Type '{ a: string; b: number; c: number; }' is not assignable to type '{ a: string; b: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'c' does not exist in type '{ a: string; b: number; }'.
!!! related TS6501 tests/cases/conformance/expressions/arrayLiterals/arrayLiterals.ts:24:17: The expected type comes from this index signature.
var context2 = [{ a: '', b: 0, c: '' }, { a: "", b: 3, c: 0 }];
// Contextual type C with numeric index signature of type Base makes array literal of Derived have type Base[]

23
tests/baselines/reference/arraySigChecking.errors.txt
View file

@ -1,12 +1,10 @@
tests/cases/compiler/arraySigChecking.ts(11,17): error TS1023: An index signature parameter type must be 'string' or 'number'.
tests/cases/compiler/arraySigChecking.ts(18,5): error TS2322: Type 'void[]' is not assignable to type 'string[]'.
Type 'void' is not assignable to type 'string'.
tests/cases/compiler/arraySigChecking.ts(22,1): error TS2322: Type 'number[][]' is not assignable to type 'number[][][]'.
Type 'number[]' is not assignable to type 'number[][]'.
Type 'number' is not assignable to type 'number[]'.
tests/cases/compiler/arraySigChecking.ts(18,27): error TS2322: Type 'void' is not assignable to type 'string'.
tests/cases/compiler/arraySigChecking.ts(22,13): error TS2322: Type 'number' is not assignable to type 'number[]'.
tests/cases/compiler/arraySigChecking.ts(22,16): error TS2322: Type 'number' is not assignable to type 'number[]'.
==== tests/cases/compiler/arraySigChecking.ts (3 errors) ====
==== tests/cases/compiler/arraySigChecking.ts (4 errors) ====
declare module M {
interface iBar { t: any; }
interface iFoo extends iBar {
@ -27,17 +25,16 @@ tests/cases/compiler/arraySigChecking.ts(22,1): error TS2322: Type 'number[][]'
}
var myVar: myInt;
var strArray: string[] = [myVar.voidFn()];
~~~~~~~~
!!! error TS2322: Type 'void[]' is not assignable to type 'string[]'.
!!! error TS2322: Type 'void' is not assignable to type 'string'.
~~~~~~~~~~~~~~
!!! error TS2322: Type 'void' is not assignable to type 'string'.
var myArray: number[][][];
myArray = [[1, 2]];
~~~~~~~
!!! error TS2322: Type 'number[][]' is not assignable to type 'number[][][]'.
!!! error TS2322: Type 'number[]' is not assignable to type 'number[][]'.
!!! error TS2322: Type 'number' is not assignable to type 'number[]'.
~
!!! error TS2322: Type 'number' is not assignable to type 'number[]'.
~
!!! error TS2322: Type 'number' is not assignable to type 'number[]'.
function isEmpty(l: { length: number }) {
return l.length === 0;

13
tests/baselines/reference/assignmentCompatBug5.errors.txt
View file

@ -1,7 +1,7 @@
tests/cases/compiler/assignmentCompatBug5.ts(2,8): error TS2345: Argument of type '{ b: number; }' is not assignable to parameter of type '{ a: number; }'.
Object literal may only specify known properties, and 'b' does not exist in type '{ a: number; }'.
tests/cases/compiler/assignmentCompatBug5.ts(5,6): error TS2345: Argument of type 'string[]' is not assignable to parameter of type 'number[]'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatBug5.ts(5,7): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatBug5.ts(5,12): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/assignmentCompatBug5.ts(8,6): error TS2345: Argument of type '(s: string) => void' is not assignable to parameter of type '(n: number) => number'.
Types of parameters 's' and 'n' are incompatible.
Type 'number' is not assignable to type 'string'.
@ -9,7 +9,7 @@ tests/cases/compiler/assignmentCompatBug5.ts(9,6): error TS2345: Argument of typ
Type 'void' is not assignable to type 'number'.
==== tests/cases/compiler/assignmentCompatBug5.ts (4 errors) ====
==== tests/cases/compiler/assignmentCompatBug5.ts (5 errors) ====
function foo1(x: { a: number; }) { }
foo1({ b: 5 });
~~~~
@ -18,9 +18,10 @@ tests/cases/compiler/assignmentCompatBug5.ts(9,6): error TS2345: Argument of typ
function foo2(x: number[]) { }
foo2(["s", "t"]);
~~~~~~~~~~
!!! error TS2345: Argument of type 'string[]' is not assignable to parameter of type 'number[]'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
function foo3(x: (n: number) =>number) { };
foo3((s:string) => { });

1
tests/baselines/reference/assignmentToObjectAndFunction.errors.txt
View file

@ -10,7 +10,6 @@ tests/cases/compiler/assignmentToObjectAndFunction.ts(29,5): error TS2322: Type
var errObj: Object = { toString: 0 }; // Error, incompatible toString
~~~~~~~~
!!! error TS2322: Type 'number' is not assignable to type '() => string'.
!!! related TS6500 /.ts/lib.es5.d.ts:125:5: The expected type comes from property 'toString' which is declared here on type 'Object'
var goodObj: Object = {
toString(x?) {
return "";

13
tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.errors.txt
View file

@ -1,6 +1,5 @@
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.ts(19,59): error TS2345: Argument of type '(c: C) => B' is not assignable to parameter of type '(x: C) => C'.
Type 'B' is not assignable to type 'C'.
Property 'z' is missing in type 'B'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.ts(19,64): error TS2322: Type 'B' is not assignable to type 'C'.
Property 'z' is missing in type 'B'.
==== tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.ts (1 errors) ====
@ -23,7 +22,7 @@ tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParamete
// Ok to go down the chain, but error to try to climb back up
(new Chain(new A)).then(a => new B).then(b => new C).then(c => new B).then(b => new A);
~~~~~~~~~~
!!! error TS2345: Argument of type '(c: C) => B' is not assignable to parameter of type '(x: C) => C'.
!!! error TS2345: Type 'B' is not assignable to type 'C'.
!!! error TS2345: Property 'z' is missing in type 'B'.
~~~~~
!!! error TS2322: Type 'B' is not assignable to type 'C'.
!!! error TS2322: Property 'z' is missing in type 'B'.
!!! related TS6502 tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter.ts:3:27: The expected type comes from the return type of this signature.

18
tests/baselines/reference/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.errors.txt
View file

@ -1,7 +1,5 @@
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(7,43): error TS2345: Argument of type '(ss: S) => T' is not assignable to parameter of type '(x: S) => S'.
Type 'T' is not assignable to type 'S'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(10,29): error TS2345: Argument of type '(ss: S) => T' is not assignable to parameter of type '(x: S) => S'.
Type 'T' is not assignable to type 'S'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(7,49): error TS2322: Type 'T' is not assignable to type 'S'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(10,35): error TS2322: Type 'T' is not assignable to type 'S'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(32,9): error TS2322: Type '""' is not assignable to type 'number'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(36,9): error TS2322: Type '""' is not assignable to type 'number'.
tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts(37,9): error TS2322: Type '""' is not assignable to type 'number'.
@ -15,15 +13,15 @@ tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParamete
var s: S;
// Ok to go down the chain, but error to climb up the chain
(new Chain(t)).then(tt => s).then(ss => t);
~~~~~~~
!!! error TS2345: Argument of type '(ss: S) => T' is not assignable to parameter of type '(x: S) => S'.
!!! error TS2345: Type 'T' is not assignable to type 'S'.
~
!!! error TS2322: Type 'T' is not assignable to type 'S'.
!!! related TS6502 tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts:3:27: The expected type comes from the return type of this signature.
// But error to try to climb up the chain
(new Chain(s)).then(ss => t);
~~~~~~~
!!! error TS2345: Argument of type '(ss: S) => T' is not assignable to parameter of type '(x: S) => S'.
!!! error TS2345: Type 'T' is not assignable to type 'S'.
~
!!! error TS2322: Type 'T' is not assignable to type 'S'.
!!! related TS6502 tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts:3:27: The expected type comes from the return type of this signature.
// Staying at T or S should be fine
(new Chain(t)).then(tt => t).then(tt => t).then(tt => t);

12
tests/baselines/reference/contextualTyping11.errors.txt
View file

@ -1,11 +1,9 @@
tests/cases/compiler/contextualTyping11.ts(1,20): error TS2322: Type 'foo[]' is not assignable to type '{ id: number; }[]'.
Type 'foo' is not assignable to type '{ id: number; }'.
Property 'id' is missing in type 'foo'.
tests/cases/compiler/contextualTyping11.ts(1,42): error TS2322: Type 'foo' is not assignable to type '{ id: number; }'.
Property 'id' is missing in type 'foo'.
==== tests/cases/compiler/contextualTyping11.ts (1 errors) ====
class foo { public bar:{id:number;}[] = [<foo>({})]; }
~~~
!!! error TS2322: Type 'foo[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type 'foo' is not assignable to type '{ id: number; }'.
!!! error TS2322: Property 'id' is missing in type 'foo'.
~~~~~~~~~
!!! error TS2322: Type 'foo' is not assignable to type '{ id: number; }'.
!!! error TS2322: Property 'id' is missing in type 'foo'.

12
tests/baselines/reference/contextualTyping12.errors.txt
View file

@ -1,13 +1,9 @@
tests/cases/compiler/contextualTyping12.ts(1,57): error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
tests/cases/compiler/contextualTyping12.ts(1,57): error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
==== tests/cases/compiler/contextualTyping12.ts (1 errors) ====
class foo { public bar:{id:number;}[] = [{id:1}, {id:2, name:"foo"}]; }
~~~~~~~~~~
!!! error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.

12
tests/baselines/reference/contextualTyping20.errors.txt
View file

@ -1,13 +1,9 @@
tests/cases/compiler/contextualTyping20.ts(1,58): error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
tests/cases/compiler/contextualTyping20.ts(1,58): error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
==== tests/cases/compiler/contextualTyping20.ts (1 errors) ====
var foo:{id:number;}[] = [{id:1}]; foo = [{id:1}, {id:2, name:"foo"}];
~~~~~~~~~~
!!! error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.

10
tests/baselines/reference/contextualTyping21.errors.txt
View file

@ -1,11 +1,7 @@
tests/cases/compiler/contextualTyping21.ts(1,36): error TS2322: Type '(number | { id: number; })[]' is not assignable to type '{ id: number; }[]'.
Type 'number | { id: number; }' is not assignable to type '{ id: number; }'.
Type 'number' is not assignable to type '{ id: number; }'.
tests/cases/compiler/contextualTyping21.ts(1,51): error TS2322: Type 'number' is not assignable to type '{ id: number; }'.
==== tests/cases/compiler/contextualTyping21.ts (1 errors) ====
var foo:{id:number;}[] = [{id:1}]; foo = [{id:1}, 1];
~~~
!!! error TS2322: Type '(number | { id: number; })[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type 'number | { id: number; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Type 'number' is not assignable to type '{ id: number; }'.
~
!!! error TS2322: Type 'number' is not assignable to type '{ id: number; }'.

10
tests/baselines/reference/contextualTyping30.errors.txt
View file

@ -1,11 +1,7 @@
tests/cases/compiler/contextualTyping30.ts(1,37): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
Type 'string | number' is not assignable to type 'number'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/contextualTyping30.ts(1,41): error TS2322: Type 'string' is not assignable to type 'number'.
==== tests/cases/compiler/contextualTyping30.ts (1 errors) ====
function foo(param:number[]){}; foo([1, "a"]);
~~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
!!! error TS2345: Type 'string | number' is not assignable to type 'number'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.

14
tests/baselines/reference/contextualTyping33.errors.txt
View file

@ -1,13 +1,9 @@
tests/cases/compiler/contextualTyping33.ts(1,66): error TS2345: Argument of type '((() => number) | (() => string))[]' is not assignable to parameter of type '{ (): number; (i: number): number; }[]'.
Type '(() => number) | (() => string)' is not assignable to type '{ (): number; (i: number): number; }'.
Type '() => string' is not assignable to type '{ (): number; (i: number): number; }'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/contextualTyping33.ts(1,90): error TS2322: Type '() => string' is not assignable to type '{ (): number; (i: number): number; }'.
Type 'string' is not assignable to type 'number'.
==== tests/cases/compiler/contextualTyping33.ts (1 errors) ====
function foo(param: {():number; (i:number):number; }[]) { }; foo([function(){return 1;}, function(){return "foo"}]);
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '((() => number) | (() => string))[]' is not assignable to parameter of type '{ (): number; (i: number): number; }[]'.
!!! error TS2345: Type '(() => number) | (() => string)' is not assignable to type '{ (): number; (i: number): number; }'.
!!! error TS2345: Type '() => string' is not assignable to type '{ (): number; (i: number): number; }'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~~~~~~~
!!! error TS2322: Type '() => string' is not assignable to type '{ (): number; (i: number): number; }'.
!!! error TS2322: Type 'string' is not assignable to type 'number'.

12
tests/baselines/reference/contextualTyping9.errors.txt
View file

@ -1,13 +1,9 @@
tests/cases/compiler/contextualTyping9.ts(1,42): error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
tests/cases/compiler/contextualTyping9.ts(1,42): error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
==== tests/cases/compiler/contextualTyping9.ts (1 errors) ====
var foo:{id:number;}[] = [{id:1}, {id:2, name:"foo"}];
~~~~~~~~~~
!!! error TS2322: Type '({ id: number; } | { id: number; name: string; })[]' is not assignable to type '{ id: number; }[]'.
!!! error TS2322: Type '{ id: number; } | { id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.
!!! error TS2322: Type '{ id: number; name: string; }' is not assignable to type '{ id: number; }'.
!!! error TS2322: Object literal may only specify known properties, and 'name' does not exist in type '{ id: number; }'.

13
tests/baselines/reference/contextualTypingOfArrayLiterals1.errors.txt
View file

@ -1,7 +1,4 @@
tests/cases/compiler/contextualTypingOfArrayLiterals1.ts(5,5): error TS2322: Type '(number | Date)[]' is not assignable to type 'I'.
Index signatures are incompatible.
Type 'number | Date' is not assignable to type 'Date'.
Type 'number' is not assignable to type 'Date'.
tests/cases/compiler/contextualTypingOfArrayLiterals1.ts(5,26): error TS2322: Type 'number' is not assignable to type 'Date'.
==== tests/cases/compiler/contextualTypingOfArrayLiterals1.ts (1 errors) ====
@ -10,11 +7,9 @@ tests/cases/compiler/contextualTypingOfArrayLiterals1.ts(5,5): error TS2322: Typ
}
var x3: I = [new Date(), 1];
~~
!!! error TS2322: Type '(number | Date)[]' is not assignable to type 'I'.
!!! error TS2322: Index signatures are incompatible.
!!! error TS2322: Type 'number | Date' is not assignable to type 'Date'.
!!! error TS2322: Type 'number' is not assignable to type 'Date'.
~
!!! error TS2322: Type 'number' is not assignable to type 'Date'.
!!! related TS6501 tests/cases/compiler/contextualTypingOfArrayLiterals1.ts:2:4: The expected type comes from this index signature.
var r2 = x3[1];
r2.getDate();

46
tests/baselines/reference/contextuallyTypedBindingInitializerNegative.errors.txt
View file

@ -1,13 +1,8 @@
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(4,20): error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(5,23): error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(6,25): error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(11,40): error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(16,23): error TS2322: Type '(arg: string) => number' is not assignable to type '(s: string) => string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(4,38): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(5,41): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(6,43): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(11,51): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(16,35): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(21,22): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts(26,14): error TS2322: Type '"baz"' is not assignable to type '"foo" | "bar"'.
@ -17,34 +12,33 @@ tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTyp
show: (x: number) => string;
}
function f({ show: showRename = v => v }: Show) {}
~~~~~~~~~~
!!! error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6502 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:2:11: The expected type comes from the return type of this signature.
function f2({ "show": showRename = v => v }: Show) {}
~~~~~~~~~~
!!! error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6502 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:2:11: The expected type comes from the return type of this signature.
function f3({ ["show"]: showRename = v => v }: Show) {}
~~~~~~~~~~
!!! error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6502 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:2:11: The expected type comes from the return type of this signature.
interface Nested {
nested: Show
}
function ff({ nested: nestedRename = { show: v => v } }: Nested) {}
~~~~
!!! error TS2322: Type '(v: number) => number' is not assignable to type '(x: number) => string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6500 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:2:5: The expected type comes from property 'show' which is declared here on type 'Show'
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6502 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:2:11: The expected type comes from the return type of this signature.
interface StringIdentity {
stringIdentity(s: string): string;
}
let { stringIdentity: id = arg => arg.length }: StringIdentity = { stringIdentity: x => x};
~~
!!! error TS2322: Type '(arg: string) => number' is not assignable to type '(s: string) => string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~~~~~~~~~~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6502 tests/cases/conformance/types/contextualTypes/methodDeclarations/contextuallyTypedBindingInitializerNegative.ts:14:5: The expected type comes from the return type of this signature.
interface Tuples {
prop: [string, number];

37
tests/baselines/reference/deepElaborationsIntoArrowExpressions.errors.txt Normal file
View file

@ -0,0 +1,37 @@
tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts(4,14): error TS2322: Type '"b"' is not assignable to type '"a"'.
tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts(12,20): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts(16,14): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts(18,18): error TS2322: Type 'string' is not assignable to type 'number'.
==== tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts (4 errors) ====
const a: {
y(): "a"
} = {
y: () => "b"
~~~
!!! error TS2322: Type '"b"' is not assignable to type '"a"'.
!!! related TS6502 tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts:2:5: The expected type comes from the return type of this signature.
};
interface Foo {
a: number;
}
function foo1(): () => Foo {
return () => ({a: ''});
~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
!!! related TS6500 tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts:8:5: The expected type comes from property 'a' which is declared here on type 'Foo'
}
function foo3(): Foo[] {
return [{a: ''}];
~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
!!! related TS6500 tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts:8:5: The expected type comes from property 'a' which is declared here on type 'Foo'
}
var y: Foo[] = [{a: ''}]
~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
!!! related TS6500 tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts:8:5: The expected type comes from property 'a' which is declared here on type 'Foo'

31
tests/baselines/reference/deepElaborationsIntoArrowExpressions.js Normal file
View file

@ -0,0 +1,31 @@
//// [deepElaborationsIntoArrowExpressions.ts]
const a: {
y(): "a"
} = {
y: () => "b"
};
interface Foo {
a: number;
}
function foo1(): () => Foo {
return () => ({a: ''});
}
function foo3(): Foo[] {
return [{a: ''}];
}
var y: Foo[] = [{a: ''}]
//// [deepElaborationsIntoArrowExpressions.js]
const a = {
y: () => "b"
};
function foo1() {
return () => ({ a: '' });
}
function foo3() {
return [{ a: '' }];
}
var y = [{ a: '' }];

40
tests/baselines/reference/deepElaborationsIntoArrowExpressions.symbols Normal file
View file

@ -0,0 +1,40 @@
=== tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts ===
const a: {
>a : Symbol(a, Decl(deepElaborationsIntoArrowExpressions.ts, 0, 5))
y(): "a"
>y : Symbol(y, Decl(deepElaborationsIntoArrowExpressions.ts, 0, 10))
} = {
y: () => "b"
>y : Symbol(y, Decl(deepElaborationsIntoArrowExpressions.ts, 2, 5))
};
interface Foo {
>Foo : Symbol(Foo, Decl(deepElaborationsIntoArrowExpressions.ts, 4, 2))
a: number;
>a : Symbol(Foo.a, Decl(deepElaborationsIntoArrowExpressions.ts, 6, 15))
}
function foo1(): () => Foo {
>foo1 : Symbol(foo1, Decl(deepElaborationsIntoArrowExpressions.ts, 8, 1))
>Foo : Symbol(Foo, Decl(deepElaborationsIntoArrowExpressions.ts, 4, 2))
return () => ({a: ''});
>a : Symbol(a, Decl(deepElaborationsIntoArrowExpressions.ts, 11, 19))
}
function foo3(): Foo[] {
>foo3 : Symbol(foo3, Decl(deepElaborationsIntoArrowExpressions.ts, 12, 1))
>Foo : Symbol(Foo, Decl(deepElaborationsIntoArrowExpressions.ts, 4, 2))
return [{a: ''}];
>a : Symbol(a, Decl(deepElaborationsIntoArrowExpressions.ts, 15, 13))
}
var y: Foo[] = [{a: ''}]
>y : Symbol(y, Decl(deepElaborationsIntoArrowExpressions.ts, 17, 3))
>Foo : Symbol(Foo, Decl(deepElaborationsIntoArrowExpressions.ts, 4, 2))
>a : Symbol(a, Decl(deepElaborationsIntoArrowExpressions.ts, 17, 17))

49
tests/baselines/reference/deepElaborationsIntoArrowExpressions.types Normal file
View file

@ -0,0 +1,49 @@
=== tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts ===
const a: {
>a : { y(): "a"; }
y(): "a"
>y : () => "a"
} = {
>{ y: () => "b"} : { y: () => "b"; }
y: () => "b"
>y : () => "b"
>() => "b" : () => "b"
>"b" : "b"
};
interface Foo {
a: number;
>a : number
}
function foo1(): () => Foo {
>foo1 : () => () => Foo
return () => ({a: ''});
>() => ({a: ''}) : () => { a: string; }
>({a: ''}) : { a: string; }
>{a: ''} : { a: string; }
>a : string
>'' : ""
}
function foo3(): Foo[] {
>foo3 : () => Foo[]
return [{a: ''}];
>[{a: ''}] : { a: string; }[]
>{a: ''} : { a: string; }
>a : string
>'' : ""
}
var y: Foo[] = [{a: ''}]
>y : Foo[]
>[{a: ''}] : { a: string; }[]
>{a: ''} : { a: string; }
>a : string
>'' : ""

10
tests/baselines/reference/destructuringParameterDeclaration4.errors.txt
View file

@ -5,9 +5,7 @@ tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(22,11): error TS2322: Type 'string' is not assignable to type '[[any]]'.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(23,4): error TS2345: Argument of type '[number, number]' is not assignable to parameter of type '[any, any, [[any]]]'.
Property '2' is missing in type '[number, number]'.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(24,4): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
Type 'string | number' is not assignable to type 'number'.
Type 'string' is not assignable to type 'number'.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(24,11): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(29,17): error TS1317: A parameter property cannot be declared using a rest parameter.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(34,22): error TS2304: Cannot find name 'E1'.
tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(34,28): error TS2304: Cannot find name 'E'.
@ -52,10 +50,8 @@ tests/cases/conformance/es6/destructuring/destructuringParameterDeclaration4.ts(
!!! error TS2345: Argument of type '[number, number]' is not assignable to parameter of type '[any, any, [[any]]]'.
!!! error TS2345: Property '2' is missing in type '[number, number]'.
a6([1, 2, "string"]); // Error, parameter type is number[]
~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
!!! error TS2345: Type 'string | number' is not assignable to type 'number'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~~~~~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
var temp = [1, 2, 3];

8
tests/baselines/reference/destructuringVariableDeclaration2.errors.txt
View file

@ -1,8 +1,7 @@
tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(3,46): error TS2322: Type 'true' is not assignable to type 'number'.
tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(3,56): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(4,61): error TS2322: Type 'false' is not assignable to type 'string'.
tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(19,10): error TS2322: Type 'string[]' is not assignable to type 'number[]'.
Type 'string' is not assignable to type 'number'.
tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(19,16): error TS2322: Type 'string' is not assignable to type 'number'.
==== tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts (4 errors) ====
@ -33,6 +32,5 @@ tests/cases/conformance/es6/destructuring/destructuringVariableDeclaration2.ts(1
// an initializer expression, the type of the initializer expression is required to be assignable
// to the widened form of the type associated with the destructuring variable declaration, binding property, or binding element.
var {d: {d1 = ["string", null]}}: { d: { d1: number[] } } = { d: { d1: [1, 2] } }; // Error
~~
!!! error TS2322: Type 'string[]' is not assignable to type 'number[]'.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
~~~~~~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.

9
tests/baselines/reference/everyTypeWithAnnotationAndInvalidInitializer.errors.txt
View file

@ -18,8 +18,7 @@ tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAnd
tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAndInvalidInitializer.ts(47,5): error TS2322: Type '(x: number) => boolean' is not assignable to type '(x: string) => number'.
Types of parameters 'x' and 'x' are incompatible.
Type 'string' is not assignable to type 'number'.
tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAndInvalidInitializer.ts(48,5): error TS2322: Type '(x: string) => string' is not assignable to type '(x: string) => number'.
Type 'string' is not assignable to type 'number'.
tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAndInvalidInitializer.ts(48,32): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAndInvalidInitializer.ts(50,5): error TS2322: Type 'typeof N' is not assignable to type 'typeof M'.
Types of property 'A' are incompatible.
Type 'typeof N.A' is not assignable to type 'typeof M.A'.
@ -111,9 +110,9 @@ tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAnd
!!! error TS2322: Types of parameters 'x' and 'x' are incompatible.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
var aLambda: typeof F = (x) => 'a string';
~~~~~~~
!!! error TS2322: Type '(x: string) => string' is not assignable to type '(x: string) => number'.
!!! error TS2322: Type 'string' is not assignable to type 'number'.
~~~~~~~~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
!!! related TS6502 tests/cases/conformance/statements/VariableStatements/everyTypeWithAnnotationAndInvalidInitializer.ts:15:10: The expected type comes from the return type of this signature.
var aModule: typeof M = N;
~~~~~~~

13
tests/baselines/reference/fixingTypeParametersRepeatedly2.errors.txt
View file

@ -1,6 +1,5 @@
tests/cases/compiler/fixingTypeParametersRepeatedly2.ts(11,27): error TS2345: Argument of type '(d: Derived) => Base' is not assignable to parameter of type '(p: Derived) => Derived'.
Type 'Base' is not assignable to type 'Derived'.
Property 'toBase' is missing in type 'Base'.
tests/cases/compiler/fixingTypeParametersRepeatedly2.ts(11,32): error TS2322: Type 'Base' is not assignable to type 'Derived'.
Property 'toBase' is missing in type 'Base'.
==== tests/cases/compiler/fixingTypeParametersRepeatedly2.ts (1 errors) ====
@ -15,10 +14,10 @@ tests/cases/compiler/fixingTypeParametersRepeatedly2.ts(11,27): error TS2345: Ar
declare function foo<T>(x: T, func: (p: T) => T): T;
var result = foo(derived, d => d.toBase());
~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(d: Derived) => Base' is not assignable to parameter of type '(p: Derived) => Derived'.
!!! error TS2345: Type 'Base' is not assignable to type 'Derived'.
!!! error TS2345: Property 'toBase' is missing in type 'Base'.
~~~~~~~~~~
!!! error TS2322: Type 'Base' is not assignable to type 'Derived'.
!!! error TS2322: Property 'toBase' is missing in type 'Base'.
!!! related TS6502 tests/cases/compiler/fixingTypeParametersRepeatedly2.ts:10:37: The expected type comes from the return type of this signature.
// bar should type check just like foo.
// The same error should be observed in both cases.

4
tests/baselines/reference/for-of10.errors.txt
View file

@ -1,8 +1,8 @@
tests/cases/conformance/es6/for-ofStatements/for-of10.ts(2,6): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/conformance/es6/for-ofStatements/for-of10.ts(2,12): error TS2322: Type 'number' is not assignable to type 'string'.
==== tests/cases/conformance/es6/for-ofStatements/for-of10.ts (1 errors) ====
var v: string;
for (v of [0]) { }
~
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.

8
tests/baselines/reference/for-of11.errors.txt
View file

@ -1,10 +1,8 @@
tests/cases/conformance/es6/for-ofStatements/for-of11.ts(2,6): error TS2322: Type 'string | number' is not assignable to type 'string'.
Type 'number' is not assignable to type 'string'.
tests/cases/conformance/es6/for-ofStatements/for-of11.ts(2,12): error TS2322: Type 'number' is not assignable to type 'string'.
==== tests/cases/conformance/es6/for-ofStatements/for-of11.ts (1 errors) ====
var v: string;
for (v of [0, ""]) { }
~
!!! error TS2322: Type 'string | number' is not assignable to type 'string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.

12
tests/baselines/reference/for-of39.errors.txt
View file

@ -1,16 +1,10 @@
tests/cases/conformance/es6/for-ofStatements/for-of39.ts(1,19): error TS2345: Argument of type '([string, number] | [string, true])[]' is not assignable to parameter of type 'ReadonlyArray<[string, boolean]>'.
Type '[string, number] | [string, true]' is not assignable to type '[string, boolean]'.
Type '[string, number]' is not assignable to type '[string, boolean]'.
Type 'number' is not assignable to type 'boolean'.
tests/cases/conformance/es6/for-ofStatements/for-of39.ts(1,37): error TS2322: Type 'number' is not assignable to type 'boolean'.
==== tests/cases/conformance/es6/for-ofStatements/for-of39.ts (1 errors) ====
var map = new Map([["", true], ["", 0]]);
~~~~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '([string, number] | [string, true])[]' is not assignable to parameter of type 'ReadonlyArray<[string, boolean]>'.
!!! error TS2345: Type '[string, number] | [string, true]' is not assignable to type '[string, boolean]'.
!!! error TS2345: Type '[string, number]' is not assignable to type '[string, boolean]'.
!!! error TS2345: Type 'number' is not assignable to type 'boolean'.
~
!!! error TS2322: Type 'number' is not assignable to type 'boolean'.
for (var [k, v] of map) {
k;
v;

13
tests/baselines/reference/functionOverloads40.errors.txt
View file

@ -1,7 +1,4 @@
tests/cases/compiler/functionOverloads40.ts(4,13): error TS2345: Argument of type '{ a: string; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
Type '{ a: string; }' is not assignable to type '{ a: boolean; }'.
Types of property 'a' are incompatible.
Type 'string' is not assignable to type 'boolean'.
tests/cases/compiler/functionOverloads40.ts(4,15): error TS2322: Type 'string' is not assignable to type 'boolean'.
==== tests/cases/compiler/functionOverloads40.ts (1 errors) ====
@ -9,9 +6,7 @@ tests/cases/compiler/functionOverloads40.ts(4,13): error TS2345: Argument of typ
function foo(bar:{a:boolean;}[]):number;
function foo(bar:{a:any;}[]):any{ return bar }
var x = foo([{a:'bar'}]);
~~~~~~~~~~~
!!! error TS2345: Argument of type '{ a: string; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
!!! error TS2345: Type '{ a: string; }' is not assignable to type '{ a: boolean; }'.
!!! error TS2345: Types of property 'a' are incompatible.
!!! error TS2345: Type 'string' is not assignable to type 'boolean'.
~
!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
!!! related TS6500 tests/cases/compiler/functionOverloads40.ts:2:19: The expected type comes from property 'a' which is declared here on type '{ a: boolean; }'

12
tests/baselines/reference/functionOverloads41.errors.txt
View file

@ -1,6 +1,5 @@
tests/cases/compiler/functionOverloads41.ts(4,13): error TS2345: Argument of type '{}[]' is not assignable to parameter of type '{ a: boolean; }[]'.
Type '{}' is not assignable to type '{ a: boolean; }'.
Property 'a' is missing in type '{}'.
tests/cases/compiler/functionOverloads41.ts(4,14): error TS2322: Type '{}' is not assignable to type '{ a: boolean; }'.
Property 'a' is missing in type '{}'.
==== tests/cases/compiler/functionOverloads41.ts (1 errors) ====
@ -8,8 +7,7 @@ tests/cases/compiler/functionOverloads41.ts(4,13): error TS2345: Argument of typ
function foo(bar:{a:boolean;}[]):number;
function foo(bar:{a:any;}[]):any{ return bar }
var x = foo([{}]);
~~~~
!!! error TS2345: Argument of type '{}[]' is not assignable to parameter of type '{ a: boolean; }[]'.
!!! error TS2345: Type '{}' is not assignable to type '{ a: boolean; }'.
!!! error TS2345: Property 'a' is missing in type '{}'.
~~
!!! error TS2322: Type '{}' is not assignable to type '{ a: boolean; }'.
!!! error TS2322: Property 'a' is missing in type '{}'.

9
tests/baselines/reference/genericCallWithGenericSignatureArguments2.errors.txt
View file

@ -6,8 +6,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGen
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(25,23): error TS2345: Argument of type '(a: T) => T' is not assignable to parameter of type '(x: Date) => Date'.
Types of parameters 'a' and 'x' are incompatible.
Type 'Date' is not assignable to type 'T'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(37,36): error TS2345: Argument of type '(x: E) => F' is not assignable to parameter of type '(x: E) => E'.
Type 'F' is not assignable to type 'E'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(37,43): error TS2322: Type 'F' is not assignable to type 'E'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(50,21): error TS2345: Argument of type 'Date' is not assignable to parameter of type 'T'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(51,22): error TS2345: Argument of type '1' is not assignable to parameter of type 'T'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(60,23): error TS2345: Argument of type '(a: T) => T' is not assignable to parameter of type '(x: Date) => Date'.
@ -67,9 +66,9 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGen
}
var r7 = foo3(E.A, (x) => E.A, (x) => F.A); // error
~~~~~~~~~~
!!! error TS2345: Argument of type '(x: E) => F' is not assignable to parameter of type '(x: E) => E'.
!!! error TS2345: Type 'F' is not assignable to type 'E'.
~~~
!!! error TS2322: Type 'F' is not assignable to type 'E'.
!!! related TS6502 tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts:32:47: The expected type comes from the return type of this signature.
}
module TU {

18
tests/baselines/reference/heterogeneousArrayAndOverloads.errors.txt
View file

@ -1,9 +1,9 @@
tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,19): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'string[]'.
Type 'string | number' is not assignable to type 'string'.
Type 'number' is not assignable to type 'string'.
tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,20): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,23): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,32): error TS2322: Type 'number' is not assignable to type 'string'.
==== tests/cases/compiler/heterogeneousArrayAndOverloads.ts (1 errors) ====
==== tests/cases/compiler/heterogeneousArrayAndOverloads.ts (3 errors) ====
class arrTest {
test(arg1: number[]);
test(arg1: string[]);
@ -13,9 +13,11 @@ tests/cases/compiler/heterogeneousArrayAndOverloads.ts(9,19): error TS2345: Argu
this.test(["hi"]);
this.test([]);
this.test([1, 2, "hi", 5]); // Error
~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'string[]'.
!!! error TS2345: Type 'string | number' is not assignable to type 'string'.
!!! error TS2345: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
}
}

12
tests/baselines/reference/iterableArrayPattern28.errors.txt
View file

@ -1,8 +1,5 @@
tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(1,33): error TS2501: A rest element cannot contain a binding pattern.
tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(2,32): error TS2345: Argument of type '([string, number] | [string, boolean])[]' is not assignable to parameter of type 'ReadonlyArray<[string, number]>'.
Type '[string, number] | [string, boolean]' is not assignable to type '[string, number]'.
Type '[string, boolean]' is not assignable to type '[string, number]'.
Type 'boolean' is not assignable to type 'number'.
tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(2,52): error TS2322: Type 'true' is not assignable to type 'number'.
==== tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts (2 errors) ====
@ -10,8 +7,5 @@ tests/cases/conformance/es6/destructuring/iterableArrayPattern28.ts(2,32): error
~~~~~~~~~~~~~~~~~~~~
!!! error TS2501: A rest element cannot contain a binding pattern.
takeFirstTwoEntries(...new Map([["", 0], ["hello", true]]));
~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '([string, number] | [string, boolean])[]' is not assignable to parameter of type 'ReadonlyArray<[string, number]>'.
!!! error TS2345: Type '[string, number] | [string, boolean]' is not assignable to type '[string, number]'.
!!! error TS2345: Type '[string, boolean]' is not assignable to type '[string, number]'.
!!! error TS2345: Type 'boolean' is not assignable to type 'number'.
~~~~
!!! error TS2322: Type 'true' is not assignable to type 'number'.

10
tests/baselines/reference/iteratorSpreadInArray5.errors.txt
View file

@ -1,6 +1,4 @@
tests/cases/conformance/es6/spread/iteratorSpreadInArray5.ts(14,5): error TS2322: Type '(number | symbol)[]' is not assignable to type 'number[]'.
Type 'number | symbol' is not assignable to type 'number'.
Type 'symbol' is not assignable to type 'number'.
tests/cases/conformance/es6/spread/iteratorSpreadInArray5.ts(14,30): error TS2322: Type 'symbol' is not assignable to type 'number'.
==== tests/cases/conformance/es6/spread/iteratorSpreadInArray5.ts (1 errors) ====
@ -18,7 +16,5 @@ tests/cases/conformance/es6/spread/iteratorSpreadInArray5.ts(14,5): error TS2322
}
var array: number[] = [0, 1, ...new SymbolIterator];
~~~~~
!!! error TS2322: Type '(number | symbol)[]' is not assignable to type 'number[]'.
!!! error TS2322: Type 'number | symbol' is not assignable to type 'number'.
!!! error TS2322: Type 'symbol' is not assignable to type 'number'.
~~~~~~~~~~~~~~~~~~~~~
!!! error TS2322: Type 'symbol' is not assignable to type 'number'.

10
tests/baselines/reference/jsxChildrenGenericContextualTypes.errors.txt
View file

@ -1,5 +1,4 @@
tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx(20,31): error TS2322: Type '(p: LitProps<"x">) => "y"' is not assignable to type '(x: IntrinsicAttributes & LitProps<"x">) => "x"'.
Type '"y"' is not assignable to type '"x"'.
tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx(20,46): error TS2322: Type '"y"' is not assignable to type '"x"'.
tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx(21,19): error TS2322: Type '{ children: (p: IntrinsicAttributes & LitProps<"x">) => "y"; prop: "x"; }' is not assignable to type 'IntrinsicAttributes & LitProps<"x" | "y">'.
Type '{ children: (p: IntrinsicAttributes & LitProps<"x">) => "y"; prop: "x"; }' is not assignable to type 'LitProps<"x" | "y">'.
Types of property 'children' are incompatible.
@ -38,10 +37,9 @@ tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx(22,21): error TS2322:
// Should error
const arg = <ElemLit prop="x" children={p => "y"} />
~~~~~~~~
!!! error TS2322: Type '(p: LitProps<"x">) => "y"' is not assignable to type '(x: IntrinsicAttributes & LitProps<"x">) => "x"'.
!!! error TS2322: Type '"y"' is not assignable to type '"x"'.
!!! related TS6500 tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx:13:34: The expected type comes from property 'children' which is declared here on type 'IntrinsicAttributes & LitProps<"x">'
~~~
!!! error TS2322: Type '"y"' is not assignable to type '"x"'.
!!! related TS6502 tests/cases/compiler/jsxChildrenGenericContextualTypes.tsx:13:44: The expected type comes from the return type of this signature.
const argchild = <ElemLit prop="x">{p => "y"}</ElemLit>
~~~~~~~
!!! error TS2322: Type '{ children: (p: IntrinsicAttributes & LitProps<"x">) => "y"; prop: "x"; }' is not assignable to type 'IntrinsicAttributes & LitProps<"x" | "y">'.

14
tests/baselines/reference/keyofIsLiteralContexualType.errors.txt
View file

@ -1,7 +1,5 @@
tests/cases/compiler/keyofIsLiteralContexualType.ts(5,9): error TS2322: Type '("a" | "b" | "c")[]' is not assignable to type '(keyof T)[]'.
Type '"a" | "b" | "c"' is not assignable to type 'keyof T'.
Type '"c"' is not assignable to type 'keyof T'.
Type '"c"' is not assignable to type '"a" | "b"'.
tests/cases/compiler/keyofIsLiteralContexualType.ts(5,37): error TS2322: Type '"c"' is not assignable to type 'keyof T'.
Type '"c"' is not assignable to type '"a" | "b"'.
tests/cases/compiler/keyofIsLiteralContexualType.ts(13,11): error TS2339: Property 'b' does not exist on type 'Pick<{ a: number; b: number; c: number; }, "a" | "c">'.
@ -11,11 +9,9 @@ tests/cases/compiler/keyofIsLiteralContexualType.ts(13,11): error TS2339: Proper
function foo<T extends { a: string, b: string }>() {
let a: (keyof T)[] = ["a", "b"];
let b: (keyof T)[] = ["a", "b", "c"];
~
!!! error TS2322: Type '("a" | "b" | "c")[]' is not assignable to type '(keyof T)[]'.
!!! error TS2322: Type '"a" | "b" | "c"' is not assignable to type 'keyof T'.
!!! error TS2322: Type '"c"' is not assignable to type 'keyof T'.
!!! error TS2322: Type '"c"' is not assignable to type '"a" | "b"'.
~~~
!!! error TS2322: Type '"c"' is not assignable to type 'keyof T'.
!!! error TS2322: Type '"c"' is not assignable to type '"a" | "b"'.
}
// Repro from #12455

10
tests/baselines/reference/mismatchedExplicitTypeParameterAndArgumentType.errors.txt
View file

@ -1,6 +1,4 @@
tests/cases/compiler/mismatchedExplicitTypeParameterAndArgumentType.ts(10,30): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
Type 'string | number' is not assignable to type 'number'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/mismatchedExplicitTypeParameterAndArgumentType.ts(10,34): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/mismatchedExplicitTypeParameterAndArgumentType.ts(11,15): error TS2558: Expected 2 type arguments, but got 1.
@ -15,10 +13,8 @@ tests/cases/compiler/mismatchedExplicitTypeParameterAndArgumentType.ts(11,15): e
var r5 = map<any, any>([1, ""], (x) => x.toString());
var r6 = map<Object, Object>([1, ""], (x) => x.toString());
var r7 = map<number, string>([1, ""], (x) => x.toString()); // error
~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
!!! error TS2345: Type 'string | number' is not assignable to type 'number'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
var r7b = map<number>([1, ""], (x) => x.toString()); // error
~~~~~~
!!! error TS2558: Expected 2 type arguments, but got 1.

5
tests/baselines/reference/objectLiteralFunctionArgContextualTyping2.errors.txt
View file

@ -32,12 +32,9 @@ tests/cases/compiler/objectLiteralFunctionArgContextualTyping2.ts(13,17): error
f2({ toString: (s) => s })
~~~~~~~~
!!! error TS2322: Type '(s: any) => any' is not assignable to type '() => string'.
!!! related TS6500 /.ts/lib.es5.d.ts:125:5: The expected type comes from property 'toString' which is declared here on type 'I2'
f2({ toString: (s: string) => s })
~~~~~~~~
!!! error TS2322: Type '(s: string) => string' is not assignable to type '() => string'.
!!! related TS6500 /.ts/lib.es5.d.ts:125:5: The expected type comes from property 'toString' which is declared here on type 'I2'
f2({ value: '', toString: (s) => s.uhhh })
~~~~~~~~
!!! error TS2322: Type '(s: any) => any' is not assignable to type '() => string'.
!!! related TS6500 /.ts/lib.es5.d.ts:125:5: The expected type comes from property 'toString' which is declared here on type 'I2'
!!! error TS2322: Type '(s: any) => any' is not assignable to type '() => string'.

25
tests/baselines/reference/objectLiteralsAgainstUnionsOfArrays01.errors.txt
View file

@ -1,10 +1,7 @@
tests/cases/compiler/objectLiteralsAgainstUnionsOfArrays01.ts(9,5): error TS2322: Type '{ bar: { prop: number; }; }[]' is not assignable to type 'Foo[]'.
Type '{ bar: { prop: number; }; }' is not assignable to type 'Foo'.
Types of property 'bar' are incompatible.
Type '{ prop: number; }' is not assignable to type 'Bar | Bar[]'.
Type '{ prop: number; }' is not assignable to type 'Bar'.
Types of property 'prop' are incompatible.
Type 'number' is not assignable to type 'string'.
tests/cases/compiler/objectLiteralsAgainstUnionsOfArrays01.ts(10,5): error TS2322: Type '{ prop: number; }' is not assignable to type 'Bar | Bar[]'.
Type '{ prop: number; }' is not assignable to type 'Bar'.
Types of property 'prop' are incompatible.
Type 'number' is not assignable to type 'string'.
==== tests/cases/compiler/objectLiteralsAgainstUnionsOfArrays01.ts (1 errors) ====
@ -17,14 +14,12 @@ tests/cases/compiler/objectLiteralsAgainstUnionsOfArrays01.ts(9,5): error TS2322
}
let x: Foo[] = [
~
!!! error TS2322: Type '{ bar: { prop: number; }; }[]' is not assignable to type 'Foo[]'.
!!! error TS2322: Type '{ bar: { prop: number; }; }' is not assignable to type 'Foo'.
!!! error TS2322: Types of property 'bar' are incompatible.
!!! error TS2322: Type '{ prop: number; }' is not assignable to type 'Bar | Bar[]'.
!!! error TS2322: Type '{ prop: number; }' is not assignable to type 'Bar'.
!!! error TS2322: Types of property 'prop' are incompatible.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
{ bar: { prop: 100 } }
~~~
!!! error TS2322: Type '{ prop: number; }' is not assignable to type 'Bar | Bar[]'.
!!! error TS2322: Type '{ prop: number; }' is not assignable to type 'Bar'.
!!! error TS2322: Types of property 'prop' are incompatible.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6500 tests/cases/compiler/objectLiteralsAgainstUnionsOfArrays01.ts:2:3: The expected type comes from property 'bar' which is declared here on type 'Foo'
]

9
tests/baselines/reference/overloadResolutionOverCTLambda.errors.txt
View file

@ -1,10 +1,9 @@
tests/cases/compiler/overloadResolutionOverCTLambda.ts(2,5): error TS2345: Argument of type '(a: number) => number' is not assignable to parameter of type '(item: number) => boolean'.
Type 'number' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionOverCTLambda.ts(2,10): error TS2322: Type 'number' is not assignable to type 'boolean'.
==== tests/cases/compiler/overloadResolutionOverCTLambda.ts (1 errors) ====
function foo(b: (item: number) => boolean) { }
foo(a => a); // can not convert (number)=>bool to (number)=>number
~~~~~~
!!! error TS2345: Argument of type '(a: number) => number' is not assignable to parameter of type '(item: number) => boolean'.
!!! error TS2345: Type 'number' is not assignable to type 'boolean'.
~
!!! error TS2322: Type 'number' is not assignable to type 'boolean'.
!!! related TS6502 tests/cases/compiler/overloadResolutionOverCTLambda.ts:1:17: The expected type comes from the return type of this signature.

13
tests/baselines/reference/overloadResolutionTest1.errors.txt
View file

@ -1,7 +1,4 @@
tests/cases/compiler/overloadResolutionTest1.ts(7,16): error TS2345: Argument of type '{ a: string; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
Type '{ a: string; }' is not assignable to type '{ a: boolean; }'.
Types of property 'a' are incompatible.
Type 'string' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionTest1.ts(7,18): error TS2322: Type 'string' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionTest1.ts(18,16): error TS2322: Type 'string' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true' is not assignable to type 'string'.
@ -14,11 +11,9 @@ tests/cases/compiler/overloadResolutionTest1.ts(24,15): error TS2322: Type 'true
var x1 = foo([{a:true}]); // works
var x11 = foo([{a:0}]); // works
var x111 = foo([{a:"s"}]); // error - does not match any signature
~~~~~~~~~
!!! error TS2345: Argument of type '{ a: string; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
!!! error TS2345: Type '{ a: string; }' is not assignable to type '{ a: boolean; }'.
!!! error TS2345: Types of property 'a' are incompatible.
!!! error TS2345: Type 'string' is not assignable to type 'boolean'.
~
!!! error TS2322: Type 'string' is not assignable to type 'boolean'.
!!! related TS6500 tests/cases/compiler/overloadResolutionTest1.ts:2:19: The expected type comes from property 'a' which is declared here on type '{ a: boolean; }'
var x1111 = foo([{a:null}]); // works - ambiguous call is resolved to be the first in the overload set so this returns a string

26
tests/baselines/reference/overloadsWithProvisionalErrors.errors.txt
View file

@ -1,10 +1,8 @@
tests/cases/compiler/overloadsWithProvisionalErrors.ts(6,6): error TS2345: Argument of type '(s: string) => {}' is not assignable to parameter of type '(s: string) => { a: number; b: number; }'.
Type '{}' is not assignable to type '{ a: number; b: number; }'.
Property 'a' is missing in type '{}'.
tests/cases/compiler/overloadsWithProvisionalErrors.ts(6,11): error TS2322: Type '{}' is not assignable to type '{ a: number; b: number; }'.
Property 'a' is missing in type '{}'.
tests/cases/compiler/overloadsWithProvisionalErrors.ts(7,17): error TS2304: Cannot find name 'blah'.
tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,6): error TS2345: Argument of type '(s: string) => { a: any; }' is not assignable to parameter of type '(s: string) => { a: number; b: number; }'.
Type '{ a: any; }' is not assignable to type '{ a: number; b: number; }'.
Property 'b' is missing in type '{ a: any; }'.
tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,11): error TS2322: Type '{ a: any; }' is not assignable to type '{ a: number; b: number; }'.
Property 'b' is missing in type '{ a: any; }'.
tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,17): error TS2304: Cannot find name 'blah'.
@ -15,17 +13,17 @@ tests/cases/compiler/overloadsWithProvisionalErrors.ts(8,17): error TS2304: Cann
};
func(s => ({})); // Error for no applicable overload (object type is missing a and b)
~~~~~~~~~
!!! error TS2345: Argument of type '(s: string) => {}' is not assignable to parameter of type '(s: string) => { a: number; b: number; }'.
!!! error TS2345: Type '{}' is not assignable to type '{ a: number; b: number; }'.
!!! error TS2345: Property 'a' is missing in type '{}'.
~~~~
!!! error TS2322: Type '{}' is not assignable to type '{ a: number; b: number; }'.
!!! error TS2322: Property 'a' is missing in type '{}'.
!!! related TS6502 tests/cases/compiler/overloadsWithProvisionalErrors.ts:3:14: The expected type comes from the return type of this signature.
func(s => ({ a: blah, b: 3 })); // Only error inside the function, but not outside (since it would be applicable if not for the provisional error)
~~~~
!!! error TS2304: Cannot find name 'blah'.
func(s => ({ a: blah })); // Two errors here, one for blah not being defined, and one for the overload since it would not be applicable anyway
~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(s: string) => { a: any; }' is not assignable to parameter of type '(s: string) => { a: number; b: number; }'.
!!! error TS2345: Type '{ a: any; }' is not assignable to type '{ a: number; b: number; }'.
!!! error TS2345: Property 'b' is missing in type '{ a: any; }'.
~~~~~~~~~~~~~
!!! error TS2322: Type '{ a: any; }' is not assignable to type '{ a: number; b: number; }'.
!!! error TS2322: Property 'b' is missing in type '{ a: any; }'.
!!! related TS6502 tests/cases/compiler/overloadsWithProvisionalErrors.ts:3:14: The expected type comes from the return type of this signature.
~~~~
!!! error TS2304: Cannot find name 'blah'.

9
tests/baselines/reference/promiseChaining1.errors.txt
View file

@ -1,5 +1,4 @@
tests/cases/compiler/promiseChaining1.ts(7,50): error TS2345: Argument of type '(x: S) => string' is not assignable to parameter of type '(x: S) => Function'.
Type 'string' is not assignable to type 'Function'.
tests/cases/compiler/promiseChaining1.ts(7,55): error TS2322: Type 'string' is not assignable to type 'Function'.
==== tests/cases/compiler/promiseChaining1.ts (1 errors) ====
@ -10,9 +9,9 @@ tests/cases/compiler/promiseChaining1.ts(7,50): error TS2345: Argument of type '
var result = cb(this.value);
// should get a fresh type parameter which each then call
var z = this.then(x => result)/*S*/.then(x => "abc")/*Function*/.then(x => x.length)/*number*/; // Should error on "abc" because it is not a Function
~~~~~~~~~~
!!! error TS2345: Argument of type '(x: S) => string' is not assignable to parameter of type '(x: S) => Function'.
!!! error TS2345: Type 'string' is not assignable to type 'Function'.
~~~~~
!!! error TS2322: Type 'string' is not assignable to type 'Function'.
!!! related TS6502 tests/cases/compiler/promiseChaining1.ts:4:34: The expected type comes from the return type of this signature.
return new Chain2(result);
}
}

9
tests/baselines/reference/promiseChaining2.errors.txt
View file

@ -1,5 +1,4 @@
tests/cases/compiler/promiseChaining2.ts(7,45): error TS2345: Argument of type '(x: S) => string' is not assignable to parameter of type '(x: S) => Function'.
Type 'string' is not assignable to type 'Function'.
tests/cases/compiler/promiseChaining2.ts(7,50): error TS2322: Type 'string' is not assignable to type 'Function'.
==== tests/cases/compiler/promiseChaining2.ts (1 errors) ====
@ -10,9 +9,9 @@ tests/cases/compiler/promiseChaining2.ts(7,45): error TS2345: Argument of type '
var result = cb(this.value);
// should get a fresh type parameter which each then call
var z = this.then(x => result).then(x => "abc").then(x => x.length);
~~~~~~~~~~
!!! error TS2345: Argument of type '(x: S) => string' is not assignable to parameter of type '(x: S) => Function'.
!!! error TS2345: Type 'string' is not assignable to type 'Function'.
~~~~~
!!! error TS2322: Type 'string' is not assignable to type 'Function'.
!!! related TS6502 tests/cases/compiler/promiseChaining2.ts:4:34: The expected type comes from the return type of this signature.
return new Chain2(result);
}
}

33
tests/baselines/reference/promiseTypeInference.errors.txt
View file

@ -1,11 +1,10 @@
tests/cases/compiler/promiseTypeInference.ts(10,34): error TS2345: Argument of type '(s: string) => IPromise<number>' is not assignable to parameter of type '(value: string) => number | PromiseLike<number>'.
Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
Types of property 'then' are incompatible.
Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
Types of parameters 'success' and 'onfulfilled' are incompatible.
Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
tests/cases/compiler/promiseTypeInference.ts(10,39): error TS2322: Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
Types of property 'then' are incompatible.
Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
Types of parameters 'success' and 'onfulfilled' are incompatible.
Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
==== tests/cases/compiler/promiseTypeInference.ts (1 errors) ====
@ -19,13 +18,13 @@ tests/cases/compiler/promiseTypeInference.ts(10,34): error TS2345: Argument of t
declare function convert(s: string): IPromise<number>;
var $$x = load("something").then(s => convert(s));
~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(s: string) => IPromise<number>' is not assignable to parameter of type '(value: string) => number | PromiseLike<number>'.
!!! error TS2345: Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
!!! error TS2345: Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
!!! error TS2345: Types of property 'then' are incompatible.
!!! error TS2345: Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
!!! error TS2345: Types of parameters 'success' and 'onfulfilled' are incompatible.
!!! error TS2345: Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
!!! error TS2345: Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
~~~~~~~~~~
!!! error TS2322: Type 'IPromise<number>' is not assignable to type 'number | PromiseLike<number>'.
!!! error TS2322: Type 'IPromise<number>' is not assignable to type 'PromiseLike<number>'.
!!! error TS2322: Types of property 'then' are incompatible.
!!! error TS2322: Type '<U>(success?: (value: number) => IPromise<U>) => IPromise<U>' is not assignable to type '<TResult1 = number, TResult2 = never>(onfulfilled?: (value: number) => TResult1 | PromiseLike<TResult1>, onrejected?: (reason: any) => TResult2 | PromiseLike<TResult2>) => PromiseLike<TResult1 | TResult2>'.
!!! error TS2322: Types of parameters 'success' and 'onfulfilled' are incompatible.
!!! error TS2322: Type 'TResult1 | PromiseLike<TResult1>' is not assignable to type 'IPromise<TResult1 | TResult2>'.
!!! error TS2322: Type 'TResult1' is not assignable to type 'IPromise<TResult1 | TResult2>'.
!!! related TS6502 /.ts/lib.es5.d.ts:1336:57: The expected type comes from the return type of this signature.

15
tests/baselines/reference/targetTypeTest3.errors.txt
View file

@ -1,17 +1,16 @@
tests/cases/compiler/targetTypeTest3.ts(4,5): error TS2322: Type '(string | number)[]' is not assignable to type 'string[]'.
Type 'string | number' is not assignable to type 'string'.
Type 'number' is not assignable to type 'string'.
tests/cases/compiler/targetTypeTest3.ts(4,21): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/compiler/targetTypeTest3.ts(4,23): error TS2322: Type 'number' is not assignable to type 'string'.
==== tests/cases/compiler/targetTypeTest3.ts (1 errors) ====
==== tests/cases/compiler/targetTypeTest3.ts (2 errors) ====
// Test target typing for array literals and call expressions
var a : string[] = [1,2,"3"]; // should produce an error
~
!!! error TS2322: Type '(string | number)[]' is not assignable to type 'string[]'.
!!! error TS2322: Type 'string | number' is not assignable to type 'string'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
function func1(stuff:any[]) { return stuff; }

16
tests/baselines/reference/trailingCommaInHeterogenousArrayLiteral1.errors.txt
View file

@ -1,7 +1,5 @@
tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts(5,19): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
Type 'string | number' is not assignable to type 'number'.
Type 'string' is not assignable to type 'number'.
tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts(6,19): error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts(5,26): error TS2322: Type 'string' is not assignable to type 'number'.
tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts(6,26): error TS2322: Type 'string' is not assignable to type 'number'.
==== tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts (2 errors) ====
@ -10,13 +8,11 @@ tests/cases/compiler/trailingCommaInHeterogenousArrayLiteral1.ts(6,19): error TS
callTest() {
// these two should give the same error
this.test([1, 2, "hi", 5, ]);
~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
!!! error TS2345: Type 'string | number' is not assignable to type 'number'.
!!! error TS2345: Type 'string' is not assignable to type 'number'.
~~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
this.test([1, 2, "hi", 5]);
~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '(string | number)[]' is not assignable to parameter of type 'number[]'.
~~~~
!!! error TS2322: Type 'string' is not assignable to type 'number'.
}
}

1
tests/baselines/reference/tsxTypeArgumentPartialDefinitionStillErrors.errors.txt
View file

@ -15,5 +15,4 @@ tests/cases/compiler/file.tsx(11,14): error TS2322: Type 'number' is not assigna
<SFC<string> prop={1}></SFC>; // should error
~~~~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
!!! related TS6500 /.ts/lib.es5.d.ts:1382:39: The expected type comes from property 'prop' which is declared here on type 'Record<string, string>'

9
tests/baselines/reference/typeArgumentInferenceWithConstraints.errors.txt
View file

@ -1,8 +1,7 @@
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(11,17): error TS2344: Type '{}' does not satisfy the constraint 'number'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(16,23): error TS2344: Type 'number' does not satisfy the constraint 'string'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(17,23): error TS2344: Type '{}' does not satisfy the constraint 'number'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(33,15): error TS2345: Argument of type '() => string' is not assignable to parameter of type '() => Window'.
Type 'string' is not assignable to type 'Window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(33,21): error TS2322: Type 'string' is not assignable to type 'Window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(35,15): error TS2344: Type 'number' does not satisfy the constraint 'Window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(41,35): error TS2345: Argument of type '(x: string) => string' is not assignable to parameter of type '(x: number) => void'.
Types of parameters 'x' and 'x' are incompatible.
@ -61,9 +60,9 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConst
// Generic call with argument of function type whose parameter is not of type parameter type but body/return type uses type parameter
function someGenerics3<T extends Window>(producer: () => T) { }
someGenerics3(() => ''); // Error
~~~~~~~~
!!! error TS2345: Argument of type '() => string' is not assignable to parameter of type '() => Window'.
!!! error TS2345: Type 'string' is not assignable to type 'Window'.
~~
!!! error TS2322: Type 'string' is not assignable to type 'Window'.
!!! related TS6502 tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts:32:52: The expected type comes from the return type of this signature.
someGenerics3<Window>(() => undefined);
someGenerics3<number>(() => 3); // Error
~~~~~~

13
tests/baselines/reference/typeParameterFixingWithContextSensitiveArguments2.errors.txt
View file

@ -1,6 +1,5 @@
tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments2.ts(7,25): error TS2345: Argument of type '(x: A) => A' is not assignable to parameter of type '(x: A) => B'.
Type 'A' is not assignable to type 'B'.
Property 'b' is missing in type 'A'.
tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments2.ts(7,30): error TS2322: Type 'A' is not assignable to type 'B'.
Property 'b' is missing in type 'A'.
==== tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments2.ts (1 errors) ====
@ -11,7 +10,7 @@ tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments2.ts(7,25):
var a: A, b: B;
var d = f(a, b, x => x, x => x); // A => A not assignable to A => B
~~~~~~
!!! error TS2345: Argument of type '(x: A) => A' is not assignable to parameter of type '(x: A) => B'.
!!! error TS2345: Type 'A' is not assignable to type 'B'.
!!! error TS2345: Property 'b' is missing in type 'A'.
~
!!! error TS2322: Type 'A' is not assignable to type 'B'.
!!! error TS2322: Property 'b' is missing in type 'A'.
!!! related TS6502 tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments2.ts:1:51: The expected type comes from the return type of this signature.

13
tests/baselines/reference/typeParameterFixingWithContextSensitiveArguments3.errors.txt
View file

@ -1,6 +1,5 @@
tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments3.ts(7,29): error TS2345: Argument of type '(t2: A) => A' is not assignable to parameter of type '(t2: A) => B'.
Type 'A' is not assignable to type 'B'.
Property 'b' is missing in type 'A'.
tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments3.ts(7,35): error TS2322: Type 'A' is not assignable to type 'B'.
Property 'b' is missing in type 'A'.
==== tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments3.ts (1 errors) ====
@ -11,7 +10,7 @@ tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments3.ts(7,29):
var a: A, b: B;
var d = f(a, b, u2 => u2.b, t2 => t2);
~~~~~~~~
!!! error TS2345: Argument of type '(t2: A) => A' is not assignable to parameter of type '(t2: A) => B'.
!!! error TS2345: Type 'A' is not assignable to type 'B'.
!!! error TS2345: Property 'b' is missing in type 'A'.
~~
!!! error TS2322: Type 'A' is not assignable to type 'B'.
!!! error TS2322: Property 'b' is missing in type 'A'.
!!! related TS6502 tests/cases/compiler/typeParameterFixingWithContextSensitiveArguments3.ts:1:56: The expected type comes from the return type of this signature.

8
tests/baselines/reference/widenedTypes.errors.txt
View file

@ -5,8 +5,7 @@ tests/cases/compiler/widenedTypes.ts(7,15): error TS2531: Object is possibly 'nu
tests/cases/compiler/widenedTypes.ts(9,14): error TS2695: Left side of comma operator is unused and has no side effects.
tests/cases/compiler/widenedTypes.ts(10,1): error TS2322: Type '""' is not assignable to type 'number'.
tests/cases/compiler/widenedTypes.ts(17,1): error TS2322: Type '""' is not assignable to type 'number'.
tests/cases/compiler/widenedTypes.ts(22,5): error TS2322: Type 'number[]' is not assignable to type 'string[]'.
Type 'number' is not assignable to type 'string'.
tests/cases/compiler/widenedTypes.ts(22,22): error TS2322: Type 'number' is not assignable to type 'string'.
tests/cases/compiler/widenedTypes.ts(23,39): error TS2322: Type 'number' is not assignable to type 'string'.
@ -47,9 +46,8 @@ tests/cases/compiler/widenedTypes.ts(23,39): error TS2322: Type 'number' is not
// Highlights the difference between array literals and object literals
var arr: string[] = [3, null]; // not assignable because null is not widened. BCT is {}
~~~
!!! error TS2322: Type 'number[]' is not assignable to type 'string[]'.
!!! error TS2322: Type 'number' is not assignable to type 'string'.
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.
var obj: { [x: string]: string; } = { x: 3, y: null }; // assignable because null is widened, and therefore BCT is any
~
!!! error TS2322: Type 'number' is not assignable to type 'string'.

3
tests/baselines/reference/wrappedAndRecursiveConstraints4.errors.txt
View file

@ -18,5 +18,4 @@ tests/cases/conformance/types/typeParameters/typeArgumentLists/wrappedAndRecursi
var r2 = r({ length: 3, charAt: (x: number) => { '' } }); // error
~~~~~~
!!! error TS2322: Type '(x: number) => void' is not assignable to type '(pos: number) => string'.
!!! error TS2322: Type 'void' is not assignable to type 'string'.
!!! related TS6500 /.ts/lib.es5.d.ts:332:5: The expected type comes from property 'charAt' which is declared here on type 'string'
!!! error TS2322: Type 'void' is not assignable to type 'string'.

19
tests/cases/compiler/deepElaborationsIntoArrowExpressions.ts Normal file
View file

@ -0,0 +1,19 @@
// @target: es6
const a: {
y(): "a"
} = {
y: () => "b"
};
interface Foo {
a: number;
}
function foo1(): () => Foo {
return () => ({a: ''});
}
function foo3(): Foo[] {
return [{a: ''}];
}
var y: Foo[] = [{a: ''}]