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Specify error message for type argument inference failing

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This commit is contained in:
Jason Freeman 2014-10-22 14:49:23 -07:00
parent e8d5fdc286
commit 47bded060e
32 changed files with 135 additions and 125 deletions
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28
src/compiler/checker.ts
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@ -129,6 +129,7 @@ module ts {
var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
var anyFunctionType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
var noConstraintType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
var typeArgumentInferenceFailureType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
var anySignature = createSignature(undefined, undefined, emptyArray, anyType, 0, false, false);
var unknownSignature = createSignature(undefined, undefined, emptyArray, unknownType, 0, false, false);
@ -3993,23 +3994,26 @@ module ts {
}
function getInferredType(context: InferenceContext, index: number): Type {
var result = context.inferredTypes[index];
if (!result) {
var inferredType = context.inferredTypes[index];
if (!inferredType) {
var inferences = context.inferences[index];
if (inferences.length) {
// Infer widened union or supertype, or the undefined type for no common supertype
var unionOrSuperType = context.inferUnionTypes ? getUnionType(inferences) : getCommonSupertype(inferences);
var inferredType = unionOrSuperType ? getWidenedType(unionOrSuperType) : undefinedType;
inferredType = unionOrSuperType ? getWidenedType(unionOrSuperType) : typeArgumentInferenceFailureType;
}
else {
// Infer the empty object type when no inferences were made
inferredType = emptyObjectType;
}
var constraint = getConstraintOfTypeParameter(context.typeParameters[index]);
var result = constraint && !isTypeAssignableTo(inferredType, constraint) ? constraint : inferredType;
context.inferredTypes[index] = result;
if (inferredType !== typeArgumentInferenceFailureType) {
var constraint = getConstraintOfTypeParameter(context.typeParameters[index]);
inferredType = constraint && !isTypeAssignableTo(inferredType, constraint) ? constraint : inferredType;
}
context.inferredTypes[index] = inferredType;
}
return result;
return inferredType;
}
function getInferredTypes(context: InferenceContext): Type[] {
@ -5094,7 +5098,7 @@ module ts {
}
var inferredTypes = getInferredTypes(context);
// Inference has failed if the undefined type is in list of inferences
return !contains(inferredTypes, undefinedType);
return !contains(inferredTypes, typeArgumentInferenceFailureType);
}
function checkTypeArguments(signature: Signature, typeArguments: TypeNode[], typeArgumentResultTypes: Type[], reportErrors: boolean): boolean {
@ -5161,6 +5165,7 @@ module ts {
var candidateForArgumentError: Signature;
var candidateForTypeArgumentError: Signature;
var indexOfUninferredTypeParameter: number;
var result: Signature;
if (candidates.length > 1) {
result = chooseOverload(candidates, subtypeRelation, excludeArgument);
@ -5169,6 +5174,7 @@ module ts {
// Reinitialize these pointers for round two
candidateForArgumentError = undefined;
candidateForTypeArgumentError = undefined;
indexOfUninferredTypeParameter = undefined;
result = chooseOverload(candidates, assignableRelation, excludeArgument);
}
if (result) {
@ -5187,7 +5193,8 @@ module ts {
checkTypeArguments(candidateForTypeArgumentError, node.typeArguments, [], /*reportErrors*/ true)
}
else {
error(node.func, Diagnostics.The_type_arguments_cannot_be_inferred_from_the_usage_Try_specifying_the_type_arguments_explicitly);
error(node.func, Diagnostics.The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Try_specifying_the_type_arguments_explicitly,
typeToString(candidateForTypeArgumentError.typeParameters[indexOfUninferredTypeParameter]));
}
}
else {
@ -5251,6 +5258,9 @@ module ts {
}
else {
candidateForTypeArgumentError = originalCandidate;
if (!node.typeArguments) {
indexOfUninferredTypeParameter = typeArgumentTypes.indexOf(typeArgumentInferenceFailureType);
}
}
}
else {

2
src/compiler/diagnosticInformationMap.generated.ts
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@ -261,7 +261,7 @@ module ts {
Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses: { code: 2445, category: DiagnosticCategory.Error, key: "Property '{0}' is protected and only accessible within class '{1}' and its subclasses." },
Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1: { code: 2446, category: DiagnosticCategory.Error, key: "Property '{0}' is protected and only accessible through an instance of class '{1}'." },
The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead: { code: 2447, category: DiagnosticCategory.Error, key: "The '{0}' operator is not allowed for boolean types. Consider using '{1}' instead." },
The_type_arguments_cannot_be_inferred_from_the_usage_Try_specifying_the_type_arguments_explicitly: { code: 2448, category: DiagnosticCategory.Error, key: "The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly." },
The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Try_specifying_the_type_arguments_explicitly: { code: 2448, category: DiagnosticCategory.Error, key: "The type argument for type parameter '{0}' cannot be inferred from the usage. Try specifying the type arguments explicitly." },
Import_declaration_0_is_using_private_name_1: { code: 4000, category: DiagnosticCategory.Error, key: "Import declaration '{0}' is using private name '{1}'." },
Type_parameter_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4001, category: DiagnosticCategory.Error, key: "Type parameter '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: DiagnosticCategory.Error, key: "Type parameter '{0}' of exported class has or is using private name '{1}'." },

2
src/compiler/diagnosticMessages.json
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@ -1036,7 +1036,7 @@
"category": "Error",
"code": 2447
},
"The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.": {
"The type argument for type parameter '{0}' cannot be inferred from the usage. Try specifying the type arguments explicitly.": {
"category": "Error",
"code": 2448
},

4
tests/baselines/reference/contextualTypingWithFixedTypeParameters1.errors.txt
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@ -1,5 +1,5 @@
tests/cases/compiler/contextualTypingWithFixedTypeParameters1.ts(2,22): error TS2339: Property 'foo' does not exist on type 'string'.
tests/cases/compiler/contextualTypingWithFixedTypeParameters1.ts(3,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/contextualTypingWithFixedTypeParameters1.ts(3,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/contextualTypingWithFixedTypeParameters1.ts (2 errors) ====
@ -9,4 +9,4 @@ tests/cases/compiler/contextualTypingWithFixedTypeParameters1.ts(3,10): error TS
!!! error TS2339: Property 'foo' does not exist on type 'string'.
var r9 = f10('', () => (a => a.foo), 1); // error
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

4
tests/baselines/reference/defaultBestCommonTypesHaveDecls.errors.txt
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@ -1,6 +1,6 @@
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(2,6): error TS2339: Property 'length' does not exist on type '{}'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(5,6): error TS2339: Property 'length' does not exist on type 'Object'.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(8,14): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(8,14): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts (3 errors) ====
@ -17,7 +17,7 @@ tests/cases/compiler/defaultBestCommonTypesHaveDecls.ts(8,14): error TS2448: The
function concat<T>(x: T, y: T): T { return null; }
var result = concat(1, ""); // error
~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var elementCount = result.length;
function concat2<T, U>(x: T, y: U) { return null; }

4
tests/baselines/reference/fixTypeParameterInSignatureWithRestParameters.errors.txt
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@ -1,8 +1,8 @@
tests/cases/compiler/fixTypeParameterInSignatureWithRestParameters.ts(2,1): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/fixTypeParameterInSignatureWithRestParameters.ts(2,1): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/fixTypeParameterInSignatureWithRestParameters.ts (1 errors) ====
function bar<T>(item1: T, item2: T) { }
bar(1, ""); // Should be ok
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

20
tests/baselines/reference/genericCallWithFunctionTypedArguments.errors.txt
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@ -1,8 +1,8 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(26,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(30,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(33,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(34,16): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(35,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(26,10): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(30,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(33,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(34,16): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(35,15): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts (5 errors) ====
@ -33,22 +33,22 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFun
var r8 = foo3(1, function (a) { return '' }, 1); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9 = foo3<number, string>(1, (a) => '', ''); // string
function other<T, U>(t: T, u: U) {
var r10 = foo2(1, (x: T) => ''); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r10 = foo2(1, (x) => ''); // string
var r11 = foo3(1, (x: T) => '', ''); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r11b = foo3(1, (x: T) => '', 1); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r12 = foo3(1, function (a) { return '' }, 1); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
}

8
tests/baselines/reference/genericCallWithFunctionTypedArguments2.errors.txt
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@ -1,5 +1,5 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(29,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(40,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(29,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(40,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts (2 errors) ====
@ -33,7 +33,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFun
var r4 = foo2(1, i2); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r4b = foo2(1, a); // any
var r5 = foo2(1, i); // any
var r6 = foo2<string, string>('', i2); // string
@ -46,5 +46,5 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFun
var r7b = foo3(null, a, ''); // any
var r8 = foo3(1, i2, 1); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9 = foo3<string, string>('', i2, ''); // string

12
tests/baselines/reference/genericCallWithGenericSignatureArguments.errors.txt
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@ -1,5 +1,5 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts(18,10): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts(19,10): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts(18,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts(19,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments.ts (2 errors) ====
@ -21,11 +21,11 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGen
var b: { x: number; z?: number; };
var r4 = foo((x: typeof a) => a, (x: typeof b) => b); // typeof a => typeof a
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
~~~
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r5 = foo((x: typeof b) => b, (x: typeof a) => a); // typeof b => typeof b
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
~~~
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
function other<T>(x: T) {
var r6 = foo((a: T) => a, (b: T) => b); // T => T

4
tests/baselines/reference/genericCallWithGenericSignatureArguments2.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(10,29): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(10,29): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(15,21): error TS2345: Argument of type 'Date' is not assignable to parameter of type 'T'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments2.ts(16,22): error TS2345: Argument of type 'number' is not assignable to parameter of type 'T'.
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'.
@ -22,7 +22,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGen
var r1: (x: {}) => {} = foo((x: number) => 1, (x: string) => '');
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
function other2<T extends Date>(x: T) {
var r7 = foo((a: T) => a, (b: T) => b); // T => T

8
tests/baselines/reference/genericCallWithGenericSignatureArguments3.errors.txt
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@ -1,5 +1,5 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts(32,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts(33,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts(32,11): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts(33,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts (2 errors) ====
@ -36,7 +36,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGen
var x: (a: string) => boolean;
var r11 = foo2(x, (a1: (y: string) => string) => (n: Object) => 1, (a2: (z: string) => string) => 2); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r12 = foo2(x, (a1: (y: string) => boolean) => (n: Object) => 1, (a2: (z: string) => boolean) => 2); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.

12
tests/baselines/reference/genericCallWithNonSymmetricSubtypes.errors.txt
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@ -1,5 +1,5 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNonSymmetricSubtypes.ts(12,9): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNonSymmetricSubtypes.ts(13,10): error TS2346: Supplied parameters do not match any signature of call target.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNonSymmetricSubtypes.ts(12,9): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNonSymmetricSubtypes.ts(13,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNonSymmetricSubtypes.ts (2 errors) ====
@ -15,11 +15,11 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithNon
var b: { x: number; z?: number; };
var r = foo(a, b); // { x: number; y?: number; };
~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
~~~
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r2 = foo(b, a); // { x: number; z?: number; };
~~~~~~~~~
!!! error TS2346: Supplied parameters do not match any signature of call target.
~~~
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var x: { x: number; };
var y: { x?: number; };

4
tests/baselines/reference/genericCallWithObjectLiteralArgs.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectLiteralArgs.ts(5,9): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectLiteralArgs.ts(5,9): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectLiteralArgs.ts (1 errors) ====
@ -8,7 +8,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObj
var r = foo({ bar: 1, baz: '' }); // error
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r2 = foo({ bar: 1, baz: 1 }); // T = number
var r3 = foo({ bar: foo, baz: foo }); // T = typeof foo
var r4 = foo<Object>({ bar: 1, baz: '' }); // T = Object

4
tests/baselines/reference/genericCallWithObjectLiteralArguments1.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/compiler/genericCallWithObjectLiteralArguments1.ts(3,9): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericCallWithObjectLiteralArguments1.ts(3,9): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericCallWithObjectLiteralArguments1.ts(4,22): error TS2345: Argument of type '{ x: number; y: string; }' is not assignable to parameter of type '{ x: number; y: number; }'.
Types of property 'y' are incompatible:
Type 'string' is not assignable to type 'number'.
@ -18,7 +18,7 @@ tests/cases/compiler/genericCallWithObjectLiteralArguments1.ts(7,22): error TS23
// these are all errors
var x = foo({ x: 3, y: "" }, 4);
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var x2 = foo<number>({ x: 3, y: "" }, 4);
~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '{ x: number; y: string; }' is not assignable to parameter of type '{ x: number; y: number; }'.

4
tests/baselines/reference/genericCallWithObjectTypeArgs.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgs.ts(20,9): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgs.ts(20,9): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgs.ts (1 errors) ====
@ -23,5 +23,5 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObj
var d1 = new X<D>();
var r = foo(c1, d1); // error
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r2 = foo(c1, c1); // ok

8
tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints3.ts(18,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints3.ts(18,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints3.ts(20,29): error TS2313: Constraint of a type parameter cannot reference any type parameter from the same type parameter list.
@ -20,9 +20,9 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObj
return r;
}
var r1 = f({ x: new Derived(), y: new Derived2() }); // ok, both extend Base
var r1 = f({ x: new Derived(), y: new Derived2() }); // error because neither is supertype of the other
~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
function f2<T extends Base, U extends { x: T; y: T }>(a: U) {
~~~~~~~~~~~~~~~~~~~~~~~~
@ -39,7 +39,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObj
return y(null);
}
// all ok - T gets fixed too early, but then defaults to Base and everything works out
// all ok - second argument is processed before x is fixed
var r4 = f3(x => x, new Base());
var r5 = f3(x => x, new Derived());
var r6 = f3(x => x, null);

8
tests/baselines/reference/genericCallWithObjectTypeArgsAndConstraints3.js
View File

@ -16,7 +16,7 @@ function f<T extends Base>(a: { x: T; y: T }) {
return r;
}
var r1 = f({ x: new Derived(), y: new Derived2() }); // ok, both extend Base
var r1 = f({ x: new Derived(), y: new Derived2() }); // error because neither is supertype of the other
function f2<T extends Base, U extends { x: T; y: T }>(a: U) {
var r: T;
@ -31,7 +31,7 @@ function f3<T extends Base>(y: (a: T) => T, x: T) {
return y(null);
}
// all ok - T gets fixed too early, but then defaults to Base and everything works out
// all ok - second argument is processed before x is fixed
var r4 = f3(x => x, new Base());
var r5 = f3(x => x, new Derived());
var r6 = f3(x => x, null);
@ -68,7 +68,7 @@ function f(a) {
var r;
return r;
}
var r1 = f({ x: new Derived(), y: new Derived2() }); // ok, both extend Base
var r1 = f({ x: new Derived(), y: new Derived2() }); // error because neither is supertype of the other
function f2(a) {
var r;
return r;
@ -78,7 +78,7 @@ var r3 = f2({ x: new Derived(), y: new Derived2() }); // ok
function f3(y, x) {
return y(null);
}
// all ok - T gets fixed too early, but then defaults to Base and everything works out
// all ok - second argument is processed before x is fixed
var r4 = f3(function (x) { return x; }, new Base());
var r5 = f3(function (x) { return x; }, new Derived());
var r6 = f3(function (x) { return x; }, null);

4
tests/baselines/reference/genericCallWithOverloadedConstructorTypedArguments.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedConstructorTypedArguments.ts(36,14): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedConstructorTypedArguments.ts(36,14): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedConstructorTypedArguments.ts (1 errors) ====
@ -39,7 +39,7 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOve
var r8 = foo6(a); // error
~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9 = foo6(b); // new any => string; new(x:any, y?:any) => string
function foo7<T>(x:T, cb: { new(x: T): string; new(x: T, y?: T): string }) {

16
tests/baselines/reference/genericClassWithFunctionTypedMemberArguments.errors.txt
View File

@ -1,7 +1,7 @@
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(57,19): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(60,19): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(61,20): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(62,19): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(57,19): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(60,19): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(61,20): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts(62,19): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.ts (4 errors) ====
@ -63,17 +63,17 @@ tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFu
function other<T, U>(t: T, u: U) {
var r10 = c.foo2(1, (x: T) => ''); // error
~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r10 = c.foo2(1, (x) => ''); // string
var r11 = c3.foo3(1, (x: T) => '', ''); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r11b = c3.foo3(1, (x: T) => '', 1); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r12 = c3.foo3(1, function (a) { return '' }, 1); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
}
}

8
tests/baselines/reference/genericRestArgs.errors.txt
View File

@ -1,6 +1,6 @@
tests/cases/compiler/genericRestArgs.ts(2,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericRestArgs.ts(2,12): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericRestArgs.ts(5,34): error TS2345: Argument of type 'string' is not assignable to parameter of type 'number'.
tests/cases/compiler/genericRestArgs.ts(10,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericRestArgs.ts(10,12): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/genericRestArgs.ts(12,30): error TS2345: Argument of type 'number' is not assignable to parameter of type 'any[]'.
@ -8,7 +8,7 @@ tests/cases/compiler/genericRestArgs.ts(12,30): error TS2345: Argument of type '
function makeArrayG<T>(...items: T[]): T[] { return items; }
var a1Ga = makeArrayG(1, ""); // no error
~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a1Gb = makeArrayG<any>(1, "");
var a1Gc = makeArrayG<Object>(1, "");
var a1Gd = makeArrayG<number>(1, ""); // error
@ -20,7 +20,7 @@ tests/cases/compiler/genericRestArgs.ts(12,30): error TS2345: Argument of type '
}
var a2Ga = makeArrayGOpt(1, "");
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a2Gb = makeArrayG<any>(1, "");
var a2Gc = makeArrayG<any[]>(1, ""); // error
~

4
tests/baselines/reference/parser15.4.4.14-9-2.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/conformance/parser/ecmascript5/parser15.4.4.14-9-2.ts(16,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/parser/ecmascript5/parser15.4.4.14-9-2.ts(16,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/parser/ecmascript5/parser15.4.4.14-9-2.ts(25,1): error TS2304: Cannot find name 'runTestCase'.
@ -20,7 +20,7 @@ tests/cases/conformance/parser/ecmascript5/parser15.4.4.14-9-2.ts(25,1): error T
var _float = -(4/3);
var a = new Array(false,undefined,null,"0",obj,-1.3333333333333, "str",-0,true,+0, one, 1,0, false, _float, -(4/3));
~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
if (a.indexOf(-(4/3)) === 14 && // a[14]=_float===-(4/3)
a.indexOf(0) === 7 && // a[7] = +0, 0===+0
a.indexOf(-0) === 7 && // a[7] = +0, -0===+0

16
tests/baselines/reference/promisePermutations.errors.txt
View File

@ -20,13 +20,13 @@ tests/cases/compiler/promisePermutations.ts(120,19): error TS2345: Argument of t
tests/cases/compiler/promisePermutations.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations.ts(122,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations.ts(126,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations.ts(129,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(129,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations.ts(134,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations.ts(137,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(144,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(152,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(137,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(144,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(152,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations.ts(156,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations.ts(158,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations.ts(159,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
@ -208,7 +208,7 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
var r9c = r9.then(nIPromise, nIPromise, nIPromise); // ok
var r9d = r9.then(testFunction, sIPromise, nIPromise); // ok
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9e = r9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s9: Promise<number>;
var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
@ -224,7 +224,7 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
var s9e = s9.then(nPromise, nPromise, nPromise); // ok
var s9f = s9.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s9g = s9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var r10 = testFunction10(x => x);
@ -233,7 +233,7 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
var r10c = r10.then(nIPromise, nIPromise, nIPromise); // ok
var r10d = r10.then(testFunction, sIPromise, nIPromise); // ok
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r10e = r10.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s10 = testFunction10P(x => x);
var s10a = s10.then(testFunction10, testFunction10, testFunction10); // ok
@ -243,7 +243,7 @@ tests/cases/compiler/promisePermutations.ts(160,21): error TS2345: Argument of t
var s10e = s10.then(nIPromise, nPromise, nIPromise); // ok
var s10f = s10.then(testFunctionP, sIPromise, nIPromise); // error
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s10g = s10.then(testFunctionP, nIPromise, sIPromise).then(sPromise, sIPromise, sIPromise); // ok
var r11: IPromise<number>;

16
tests/baselines/reference/promisePermutations2.errors.txt
View File

@ -20,13 +20,13 @@ tests/cases/compiler/promisePermutations2.ts(119,19): error TS2345: Argument of
tests/cases/compiler/promisePermutations2.ts(120,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations2.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations2.ts(125,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations2.ts(128,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(128,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(131,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations2.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations2.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations2.ts(136,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(143,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(151,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(136,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(143,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(151,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations2.ts(155,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations2.ts(157,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations2.ts(158,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
@ -207,7 +207,7 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
var r9c = r9.then(nIPromise, nIPromise, nIPromise); // ok
var r9d = r9.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9e = r9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s9: Promise<number>;
var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
@ -223,7 +223,7 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
var s9e = s9.then(nPromise, nPromise, nPromise); // ok
var s9f = s9.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s9g = s9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var r10 = testFunction10(x => x);
@ -232,7 +232,7 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
var r10c = r10.then(nIPromise, nIPromise, nIPromise); // ok
var r10d = r10.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r10e = r10.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s10 = testFunction10P(x => x);
var s10a = s10.then(testFunction10, testFunction10, testFunction10); // ok
@ -242,7 +242,7 @@ tests/cases/compiler/promisePermutations2.ts(159,21): error TS2345: Argument of
var s10e = s10.then(nIPromise, nPromise, nIPromise); // ok
var s10f = s10.then(testFunctionP, sIPromise, nIPromise); // error
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s10g = s10.then(testFunctionP, nIPromise, sIPromise).then(sPromise, sIPromise, sIPromise); // ok
var r11: IPromise<number>;

16
tests/baselines/reference/promisePermutations3.errors.txt
View File

@ -21,13 +21,13 @@ tests/cases/compiler/promisePermutations3.ts(119,19): error TS2345: Argument of
tests/cases/compiler/promisePermutations3.ts(120,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations3.ts(121,19): error TS2345: Argument of type '<T>(x: T, cb: (a: T) => T) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations3.ts(125,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations3.ts(128,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(128,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(131,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => IPromise<T>' is not assignable to parameter of type '(value: number) => IPromise<number>'.
tests/cases/compiler/promisePermutations3.ts(132,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => Promise<number>'.
tests/cases/compiler/promisePermutations3.ts(133,19): error TS2345: Argument of type '<T>(x: T, cb: <U>(a: U) => U) => Promise<T>' is not assignable to parameter of type '(value: number) => IPromise<any>'.
tests/cases/compiler/promisePermutations3.ts(136,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(143,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(151,12): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(136,11): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(143,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(151,12): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/promisePermutations3.ts(155,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations3.ts(157,21): error TS2345: Argument of type '{ (x: number): IPromise<number>; (x: string): IPromise<string>; }' is not assignable to parameter of type '(value: number) => IPromise<string>'.
tests/cases/compiler/promisePermutations3.ts(158,21): error TS2345: Argument of type '{ (x: number): Promise<number>; (x: string): Promise<string>; }' is not assignable to parameter of type '(value: number) => Promise<string>'.
@ -211,7 +211,7 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
var r9c = r9.then(nIPromise, nIPromise, nIPromise); // ok
var r9d = r9.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r9e = r9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s9: Promise<number>;
var s9a = s9.then(testFunction9, testFunction9, testFunction9); // error
@ -227,7 +227,7 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
var s9e = s9.then(nPromise, nPromise, nPromise); // ok
var s9f = s9.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s9g = s9.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var r10 = testFunction10(x => x);
@ -236,7 +236,7 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
var r10c = r10.then(nIPromise, nIPromise, nIPromise); // ok
var r10d = r10.then(testFunction, sIPromise, nIPromise); // error
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var r10e = r10.then(testFunction, nIPromise, sIPromise).then(sIPromise, sIPromise, sIPromise); // ok
var s10 = testFunction10P(x => x);
var s10a = s10.then(testFunction10, testFunction10, testFunction10); // ok
@ -246,7 +246,7 @@ tests/cases/compiler/promisePermutations3.ts(165,21): error TS2345: Argument of
var s10e = s10.then(nIPromise, nPromise, nIPromise); // ok
var s10f = s10.then(testFunctionP, sIPromise, nIPromise); // error
~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var s10g = s10.then(testFunctionP, nIPromise, sIPromise).then(sPromise, sIPromise, sIPromise); // ok
var r11: IPromise<number>;

4
tests/baselines/reference/typeArgInference2.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/compiler/typeArgInference2.ts(12,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/typeArgInference2.ts(12,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/typeArgInference2.ts (1 errors) ====
@ -15,4 +15,4 @@ tests/cases/compiler/typeArgInference2.ts(12,10): error TS2448: The type argumen
var z5 = foo({ name: "abc", a: 5 }); // { name: string; a: number }
var z6 = foo({ name: "abc", a: 5 }, { name: "def", b: 5 }); // error
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

4
tests/baselines/reference/typeArgInference2WithError.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/compiler/typeArgInference2WithError.ts(7,10): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/typeArgInference2WithError.ts(7,10): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/typeArgInference2WithError.ts (1 errors) ====
@ -10,4 +10,4 @@ tests/cases/compiler/typeArgInference2WithError.ts(7,10): error TS2448: The type
var z7 = foo("abc", 5); // Error
~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

8
tests/baselines/reference/typeArgumentInference.errors.txt
View File

@ -1,5 +1,5 @@
tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(68,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(82,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(68,11): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(82,11): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts (2 errors) ====
@ -72,7 +72,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(82,11
}
var a9a = someGenerics9('', 0, []);
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a9a: {};
var a9b = someGenerics9<{ a?: number; b?: string; }>({ a: 0 }, { b: '' }, null);
var a9b: { a?: number; b?: string; };
@ -88,7 +88,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInference.ts(82,11
}
var a9e = someGenerics9(undefined, { x: 6, z: new Date() }, { x: 6, y: '' });
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a9e: {};
var a9f = someGenerics9<A92>(undefined, { x: 6, z: new Date() }, { x: 6, y: '' });
var a9f: A92;

8
tests/baselines/reference/typeArgumentInferenceConstructSignatures.errors.txt
View File

@ -3,9 +3,9 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstruct
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(61,39): error TS2345: Argument of type '(x: string) => string' is not assignable to parameter of type '(x: number) => void'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(71,39): error TS2345: Argument of type '(x: string) => string' is not assignable to parameter of type '(x: number) => void'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(81,45): error TS2345: Argument of type '(n: string) => string' is not assignable to parameter of type '(b: number) => number'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(106,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(106,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(118,9): error TS2304: Cannot find name 'Window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(120,15): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(120,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(120,51): error TS2304: Cannot find name 'window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstructSignatures.ts(122,56): error TS2304: Cannot find name 'window'.
@ -128,7 +128,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstruct
var someGenerics9: someGenerics9;
var a9a = new someGenerics9('', 0, []);
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a9a: {};
var a9b = new someGenerics9<{ a?: number; b?: string; }>({ a: 0 }, { b: '' }, null);
var a9b: { a?: number; b?: string; };
@ -146,7 +146,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceConstruct
}
var a9e = new someGenerics9(undefined, { x: 6, z: window }, { x: 6, y: '' });
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
~~~~~~
!!! error TS2304: Cannot find name 'window'.
var a9e: {};

4
tests/baselines/reference/typeArgumentInferenceWithConstraintAsCommonRoot.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/compiler/typeArgumentInferenceWithConstraintAsCommonRoot.ts(7,1): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/typeArgumentInferenceWithConstraintAsCommonRoot.ts(7,1): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/typeArgumentInferenceWithConstraintAsCommonRoot.ts (1 errors) ====
@ -10,4 +10,4 @@ tests/cases/compiler/typeArgumentInferenceWithConstraintAsCommonRoot.ts(7,1): er
var e: Elephant;
f(g, e); // valid because both Giraffe and Elephant satisfy the constraint. T is Animal
~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

8
tests/baselines/reference/typeArgumentInferenceWithConstraints.errors.txt
View File

@ -8,9 +8,9 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConst
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(49,15): error TS2344: Type 'string' does not satisfy the constraint 'number'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(55,41): error TS2345: Argument of type '(n: string) => string' is not assignable to parameter of type '(b: number) => number'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(66,31): error TS2345: Argument of type '<A, B extends string, C>(a: (a: A) => A, b: (b: B) => B, c: (c: C) => C) => void' is not assignable to parameter of type 'string'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(73,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(73,11): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(85,9): error TS2304: Cannot find name 'Window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(87,11): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(87,11): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(87,47): error TS2304: Cannot find name 'window'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConstraints.ts(89,52): error TS2304: Cannot find name 'window'.
@ -110,7 +110,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConst
}
var a9a = someGenerics9('', 0, []);
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
var a9a: {};
var a9b = someGenerics9<{ a?: number; b?: string; }>({ a: 0 }, { b: '' }, null);
var a9b: { a?: number; b?: string; };
@ -128,7 +128,7 @@ tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithConst
}
var a9e = someGenerics9(undefined, { x: 6, z: window }, { x: 6, y: '' });
~~~~~~~~~~~~~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
~~~~~~
!!! error TS2304: Cannot find name 'window'.
var a9e: {};

4
tests/baselines/reference/typeInferenceConflictingCandidates.errors.txt
View File

@ -1,4 +1,4 @@
tests/cases/compiler/typeInferenceConflictingCandidates.ts(3,1): error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
tests/cases/compiler/typeInferenceConflictingCandidates.ts(3,1): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
==== tests/cases/compiler/typeInferenceConflictingCandidates.ts (1 errors) ====
@ -6,4 +6,4 @@ tests/cases/compiler/typeInferenceConflictingCandidates.ts(3,1): error TS2448: T
g("", 3, a => a);
~
!!! error TS2448: The type arguments cannot be inferred from the usage. Try specifying the type arguments explicitly.
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.

4
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints3.ts
View File

@ -15,7 +15,7 @@ function f<T extends Base>(a: { x: T; y: T }) {
return r;
}
var r1 = f({ x: new Derived(), y: new Derived2() }); // ok, both extend Base
var r1 = f({ x: new Derived(), y: new Derived2() }); // error because neither is supertype of the other
function f2<T extends Base, U extends { x: T; y: T }>(a: U) {
var r: T;
@ -30,7 +30,7 @@ function f3<T extends Base>(y: (a: T) => T, x: T) {
return y(null);
}
// all ok - T gets fixed too early, but then defaults to Base and everything works out
// all ok - second argument is processed before x is fixed
var r4 = f3(x => x, new Base());
var r5 = f3(x => x, new Derived());
var r6 = f3(x => x, null);