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https://github.com/microsoft/TypeScript.git
synced 2026-06-30 04:16:48 -05:00
Improve error messages when indexing into a type (#31379)
* Improved error messages when indexing an object type with a literal string, a literal string union or a string. * Added more specific message when using the indexing operator with an incompatible index argument. * Fixed spelling and error message.
This commit is contained in:
Titian Cernicova-Dragomir
committed by
Wesley Wigham
Wesley Wigham
parent
a2b40292fe
commit
8ab0a25211
@@ -10067,7 +10067,7 @@ namespace ts {
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return false;
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}
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function getPropertyTypeForIndexType(originalObjectType: Type, objectType: Type, indexType: Type, accessNode: ElementAccessExpression | IndexedAccessTypeNode | PropertyName | BindingName | SyntheticExpression | undefined, accessFlags: AccessFlags) {
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function getPropertyTypeForIndexType(originalObjectType: Type, objectType: Type, indexType: Type, fullIndexType: Type, suppressNoImplicitAnyError: boolean, accessNode: ElementAccessExpression | IndexedAccessTypeNode | PropertyName | BindingName | SyntheticExpression | undefined, accessFlags: AccessFlags) {
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const accessExpression = accessNode && accessNode.kind === SyntaxKind.ElementAccessExpression ? accessNode : undefined;
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const propName = isTypeUsableAsPropertyName(indexType) ?
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getPropertyNameFromType(indexType) :
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@@ -10141,7 +10141,7 @@ namespace ts {
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if (objectType.symbol === globalThisSymbol && propName !== undefined && globalThisSymbol.exports!.has(propName) && (globalThisSymbol.exports!.get(propName)!.flags & SymbolFlags.BlockScoped)) {
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error(accessExpression, Diagnostics.Property_0_does_not_exist_on_type_1, unescapeLeadingUnderscores(propName), typeToString(objectType));
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}
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else if (noImplicitAny && !compilerOptions.suppressImplicitAnyIndexErrors) {
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else if (noImplicitAny && !compilerOptions.suppressImplicitAnyIndexErrors && !suppressNoImplicitAnyError) {
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if (propName !== undefined && typeHasStaticProperty(propName, objectType)) {
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error(accessExpression, Diagnostics.Property_0_is_a_static_member_of_type_1, propName as string, typeToString(objectType));
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}
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@@ -10161,7 +10161,29 @@ namespace ts {
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error(accessExpression, Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature_Did_you_mean_to_call_1, typeToString(objectType), suggestion);
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}
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else {
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error(accessExpression, Diagnostics.Element_implicitly_has_an_any_type_because_type_0_has_no_index_signature, typeToString(objectType));
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let errorInfo: DiagnosticMessageChain | undefined;
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if (indexType.flags & TypeFlags.EnumLiteral) {
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errorInfo = chainDiagnosticMessages(/* details */ undefined, Diagnostics.Property_0_does_not_exist_on_type_1, "[" + typeToString(indexType) + "]", typeToString(objectType));
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}
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else if (indexType.flags & TypeFlags.UniqueESSymbol) {
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const symbolName = getFullyQualifiedName((indexType as UniqueESSymbolType).symbol, accessExpression);
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errorInfo = chainDiagnosticMessages(/* details */ undefined, Diagnostics.Property_0_does_not_exist_on_type_1, "[" + symbolName + "]", typeToString(objectType));
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}
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else if (indexType.flags & TypeFlags.StringLiteral) {
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errorInfo = chainDiagnosticMessages(/* details */ undefined, Diagnostics.Property_0_does_not_exist_on_type_1, (indexType as StringLiteralType).value, typeToString(objectType));
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}
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else if (indexType.flags & TypeFlags.NumberLiteral) {
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errorInfo = chainDiagnosticMessages(/* details */ undefined, Diagnostics.Property_0_does_not_exist_on_type_1, (indexType as NumberLiteralType).value, typeToString(objectType));
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}
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else if (indexType.flags & (TypeFlags.Number | TypeFlags.String)) {
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errorInfo = chainDiagnosticMessages(/* details */ undefined, Diagnostics.No_index_signature_with_a_parameter_of_type_0_was_found_on_type_1, typeToString(indexType), typeToString(objectType));
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}
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errorInfo = chainDiagnosticMessages(
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errorInfo,
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Diagnostics.Element_implicitly_has_an_any_type_because_expression_of_type_0_can_t_be_used_to_index_type_1, typeToString(fullIndexType), typeToString(objectType)
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);
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diagnostics.add(createDiagnosticForNodeFromMessageChain(accessExpression, errorInfo));
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}
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}
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}
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@@ -10360,7 +10382,7 @@ namespace ts {
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const propTypes: Type[] = [];
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let wasMissingProp = false;
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for (const t of (<UnionType>indexType).types) {
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const propType = getPropertyTypeForIndexType(objectType, apparentObjectType, t, accessNode, accessFlags);
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const propType = getPropertyTypeForIndexType(objectType, apparentObjectType, t, indexType, wasMissingProp, accessNode, accessFlags);
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if (propType) {
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propTypes.push(propType);
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}
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@@ -10378,7 +10400,7 @@ namespace ts {
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}
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return accessFlags & AccessFlags.Writing ? getIntersectionType(propTypes) : getUnionType(propTypes);
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}
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return getPropertyTypeForIndexType(objectType, apparentObjectType, indexType, accessNode, accessFlags | AccessFlags.CacheSymbol);
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return getPropertyTypeForIndexType(objectType, apparentObjectType, indexType, indexType, /* supressNoImplicitAnyError */ false, accessNode, accessFlags | AccessFlags.CacheSymbol);
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}
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function getTypeFromIndexedAccessTypeNode(node: IndexedAccessTypeNode) {
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@@ -4288,6 +4288,14 @@
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"category": "Error",
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"code": 7052
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},
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"Element implicitly has an 'any' type because expression of type '{0}' can't be used to index type '{1}'.": {
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"category": "Error",
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"code": 7053
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},
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"No index signature with a parameter of type '{0}' was found on type '{1}'.": {
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"category": "Error",
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"code": 7054
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},
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"You cannot rename this element.": {
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"category": "Error",
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"code": 8000
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@@ -2,8 +2,10 @@ tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(4,5): error TS2
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(5,6): error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(6,12): error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(8,5): error TS7015: Element implicitly has an 'any' type because index expression is not of type 'number'.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(9,1): error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(10,1): error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(9,1): error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type 'typeof globalThis'.
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Property 'hi' does not exist on type 'typeof globalThis'.
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tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(10,1): error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type 'typeof globalThis'.
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Property 'hi' does not exist on type 'typeof globalThis'.
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==== tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts (6 errors) ====
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@@ -25,8 +27,10 @@ tests/cases/conformance/es2019/globalThisUnknownNoImplicitAny.ts(10,1): error TS
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!!! error TS7015: Element implicitly has an 'any' type because index expression is not of type 'number'.
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this['hi']
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~~~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type 'typeof globalThis'.
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!!! error TS7053: Property 'hi' does not exist on type 'typeof globalThis'.
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globalThis['hi']
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~~~~~~~~~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type 'typeof globalThis' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type 'typeof globalThis'.
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!!! error TS7053: Property 'hi' does not exist on type 'typeof globalThis'.
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@@ -15,7 +15,8 @@ tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(26,7): error TS233
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(27,5): error TS2322: Type '1' is not assignable to type 'T[keyof T]'.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(31,5): error TS2322: Type '{ [key: string]: number; }' is not assignable to type '{ [P in K]: number; }'.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(38,5): error TS2322: Type '{ [x: string]: number; }' is not assignable to type '{ [P in K]: number; }'.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(50,3): error TS7017: Element implicitly has an 'any' type because type 'Item' has no index signature.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(50,3): error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type 'Item'.
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No index signature with a parameter of type 'string' was found on type 'Item'.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(51,3): error TS2322: Type '123' is not assignable to type 'string & number'.
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Type '123' is not assignable to type 'string'.
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tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(52,3): error TS2322: Type '123' is not assignable to type 'T[keyof T]'.
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@@ -112,7 +113,8 @@ tests/cases/conformance/types/keyof/keyofAndIndexedAccess2.ts(108,5): error TS23
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function f10<T extends Item, K extends keyof T>(obj: T, k1: string, k2: keyof Item, k3: keyof T, k4: K) {
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obj[k1] = 123; // Error
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~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type 'Item' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type 'Item'.
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!!! error TS7053: No index signature with a parameter of type 'string' was found on type 'Item'.
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obj[k2] = 123; // Error
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~~~~~~~
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!!! error TS2322: Type '123' is not assignable to type 'string & number'.
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@@ -1,5 +1,7 @@
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tests/cases/compiler/noImplicitAnyForIn.ts(7,18): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyForIn.ts(14,18): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyForIn.ts(7,18): error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
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No index signature with a parameter of type 'string' was found on type '{}'.
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tests/cases/compiler/noImplicitAnyForIn.ts(14,18): error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
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No index signature with a parameter of type 'string' was found on type '{}'.
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tests/cases/compiler/noImplicitAnyForIn.ts(28,5): error TS7005: Variable 'n' implicitly has an 'any[][]' type.
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tests/cases/compiler/noImplicitAnyForIn.ts(30,6): error TS2405: The left-hand side of a 'for...in' statement must be of type 'string' or 'any'.
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@@ -13,7 +15,8 @@ tests/cases/compiler/noImplicitAnyForIn.ts(30,6): error TS2405: The left-hand si
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//Should yield an implicit 'any' error
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var _j = x[i][j];
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~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
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!!! error TS7053: No index signature with a parameter of type 'string' was found on type '{}'.
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}
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for (var k in x[0]) {
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@@ -22,7 +25,8 @@ tests/cases/compiler/noImplicitAnyForIn.ts(30,6): error TS2405: The left-hand si
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//Should yield an implicit 'any' error
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var k2 = k1[k];
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~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
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!!! error TS7053: No index signature with a parameter of type 'string' was found on type '{}'.
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}
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}
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@@ -1,7 +1,9 @@
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tests/cases/compiler/noImplicitAnyIndexing.ts(12,37): error TS7015: Element implicitly has an 'any' type because index expression is not of type 'number'.
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tests/cases/compiler/noImplicitAnyIndexing.ts(19,9): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyIndexing.ts(22,9): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyIndexing.ts(30,10): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyIndexing.ts(19,9): error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type '{}'.
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Property 'hi' does not exist on type '{}'.
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tests/cases/compiler/noImplicitAnyIndexing.ts(22,9): error TS7053: Element implicitly has an 'any' type because expression of type '10' can't be used to index type '{}'.
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Property '10' does not exist on type '{}'.
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tests/cases/compiler/noImplicitAnyIndexing.ts(30,10): error TS7053: Element implicitly has an 'any' type because expression of type 'any' can't be used to index type '{}'.
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==== tests/cases/compiler/noImplicitAnyIndexing.ts (4 errors) ====
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@@ -27,12 +29,14 @@ tests/cases/compiler/noImplicitAnyIndexing.ts(30,10): error TS7017: Element impl
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// Should report an implicit 'any'.
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var x = {}["hi"];
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~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hi"' can't be used to index type '{}'.
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!!! error TS7053: Property 'hi' does not exist on type '{}'.
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// Should report an implicit 'any'.
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var y = {}[10];
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~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '10' can't be used to index type '{}'.
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!!! error TS7053: Property '10' does not exist on type '{}'.
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var hi: any = "hi";
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@@ -42,7 +46,7 @@ tests/cases/compiler/noImplicitAnyIndexing.ts(30,10): error TS7017: Element impl
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// Should report an implicit 'any'.
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var z1 = emptyObj[hi];
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~~~~~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type 'any' can't be used to index type '{}'.
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var z2 = (<any>emptyObj)[hi];
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interface MyMap<T> {
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@@ -1,16 +1,29 @@
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(1,9): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(1,9): error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{}'.
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Property 'hello' does not exist on type '{}'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(7,1): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'get' ?
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(8,13): error TS7052: Element implicitly has an 'any' type because type '{ get: (key: string) => string; }' has no index signature. Did you mean to call 'get' ?
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(13,13): error TS7017: Element implicitly has an 'any' type because type '{ set: (key: string) => string; }' has no index signature.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(13,13): error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{ set: (key: string) => string; }'.
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Property 'hello' does not exist on type '{ set: (key: string) => string; }'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(19,1): error TS7052: Element implicitly has an 'any' type because type '{ set: (key: string) => string; get: (key: string) => string; }' has no index signature. Did you mean to call 'set' ?
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(20,1): error TS7052: Element implicitly has an 'any' type because type '{ set: (key: string) => string; get: (key: string) => string; }' has no index signature. Did you mean to call 'set' ?
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(21,1): error TS7052: Element implicitly has an 'any' type because type '{ set: (key: string) => string; get: (key: string) => string; }' has no index signature. Did you mean to call 'set' ?
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(26,1): error TS7053: Element implicitly has an 'any' type because expression of type '"a" | "b" | "c"' can't be used to index type '{ a: number; }'.
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Property 'b' does not exist on type '{ a: number; }'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(30,1): error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{ a: number; }'.
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Property 'c' does not exist on type '{ a: number; }'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(33,1): error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type '{ a: number; }'.
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Property '[sym]' does not exist on type '{ a: number; }'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(37,1): error TS7053: Element implicitly has an 'any' type because expression of type 'NumEnum' can't be used to index type '{ a: number; }'.
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Property '[NumEnum.a]' does not exist on type '{ a: number; }'.
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tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(42,1): error TS7053: Element implicitly has an 'any' type because expression of type 'StrEnum' can't be used to index type '{ a: number; }'.
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Property '[StrEnum.b]' does not exist on type '{ a: number; }'.
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==== tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts (7 errors) ====
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==== tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts (12 errors) ====
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var a = {}["hello"];
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~~~~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{}'.
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!!! error TS7053: Property 'hello' does not exist on type '{}'.
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var b: string = { '': 'foo' }[''];
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var c = {
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@@ -28,7 +41,8 @@ tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(21,1): error TS7052:
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};
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const bar = d['hello'];
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~~~~~~~~~~
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!!! error TS7017: Element implicitly has an 'any' type because type '{ set: (key: string) => string; }' has no index signature.
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"hello"' can't be used to index type '{ set: (key: string) => string; }'.
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!!! error TS7053: Property 'hello' does not exist on type '{ set: (key: string) => string; }'.
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var e = {
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set: (key: string) => 'foobar',
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@@ -44,4 +58,39 @@ tests/cases/compiler/noImplicitAnyStringIndexerOnObject.ts(21,1): error TS7052:
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~~~~~~~~~~
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!!! error TS7052: Element implicitly has an 'any' type because type '{ set: (key: string) => string; get: (key: string) => string; }' has no index signature. Did you mean to call 'set' ?
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const o = { a: 0 };
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declare const k: "a" | "b" | "c";
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o[k];
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~~~~
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"a" | "b" | "c"' can't be used to index type '{ a: number; }'.
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!!! error TS7053: Property 'b' does not exist on type '{ a: number; }'.
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declare const k2: "c";
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o[k2];
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~~~~~
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!!! error TS7053: Element implicitly has an 'any' type because expression of type '"c"' can't be used to index type '{ a: number; }'.
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!!! error TS7053: Property 'c' does not exist on type '{ a: number; }'.
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declare const sym : unique symbol;
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o[sym];
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~~~~~~
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!!! error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type '{ a: number; }'.
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!!! error TS7053: Property '[sym]' does not exist on type '{ a: number; }'.
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enum NumEnum { a, b }
|
||||
let numEnumKey: NumEnum;
|
||||
o[numEnumKey];
|
||||
~~~~~~~~~~~~~
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'NumEnum' can't be used to index type '{ a: number; }'.
|
||||
!!! error TS7053: Property '[NumEnum.a]' does not exist on type '{ a: number; }'.
|
||||
|
||||
|
||||
enum StrEnum { a = "a", b = "b" }
|
||||
let strEnumKey: StrEnum;
|
||||
o[strEnumKey];
|
||||
~~~~~~~~~~~~~
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'StrEnum' can't be used to index type '{ a: number; }'.
|
||||
!!! error TS7053: Property '[StrEnum.b]' does not exist on type '{ a: number; }'.
|
||||
|
||||
@@ -21,6 +21,26 @@ e['hello'] = 'modified';
|
||||
e['hello'] += 1;
|
||||
e['hello'] ++;
|
||||
|
||||
const o = { a: 0 };
|
||||
|
||||
declare const k: "a" | "b" | "c";
|
||||
o[k];
|
||||
|
||||
|
||||
declare const k2: "c";
|
||||
o[k2];
|
||||
|
||||
declare const sym : unique symbol;
|
||||
o[sym];
|
||||
|
||||
enum NumEnum { a, b }
|
||||
let numEnumKey: NumEnum;
|
||||
o[numEnumKey];
|
||||
|
||||
|
||||
enum StrEnum { a = "a", b = "b" }
|
||||
let strEnumKey: StrEnum;
|
||||
o[strEnumKey];
|
||||
|
||||
|
||||
//// [noImplicitAnyStringIndexerOnObject.js]
|
||||
@@ -42,3 +62,21 @@ var e = {
|
||||
e['hello'] = 'modified';
|
||||
e['hello'] += 1;
|
||||
e['hello']++;
|
||||
var o = { a: 0 };
|
||||
o[k];
|
||||
o[k2];
|
||||
o[sym];
|
||||
var NumEnum;
|
||||
(function (NumEnum) {
|
||||
NumEnum[NumEnum["a"] = 0] = "a";
|
||||
NumEnum[NumEnum["b"] = 1] = "b";
|
||||
})(NumEnum || (NumEnum = {}));
|
||||
var numEnumKey;
|
||||
o[numEnumKey];
|
||||
var StrEnum;
|
||||
(function (StrEnum) {
|
||||
StrEnum["a"] = "a";
|
||||
StrEnum["b"] = "b";
|
||||
})(StrEnum || (StrEnum = {}));
|
||||
var strEnumKey;
|
||||
o[strEnumKey];
|
||||
|
||||
@@ -55,4 +55,56 @@ e['hello'] += 1;
|
||||
e['hello'] ++;
|
||||
>e : Symbol(e, Decl(noImplicitAnyStringIndexerOnObject.ts, 14, 3))
|
||||
|
||||
const o = { a: 0 };
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>a : Symbol(a, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 11))
|
||||
|
||||
declare const k: "a" | "b" | "c";
|
||||
>k : Symbol(k, Decl(noImplicitAnyStringIndexerOnObject.ts, 24, 13))
|
||||
|
||||
o[k];
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>k : Symbol(k, Decl(noImplicitAnyStringIndexerOnObject.ts, 24, 13))
|
||||
|
||||
|
||||
declare const k2: "c";
|
||||
>k2 : Symbol(k2, Decl(noImplicitAnyStringIndexerOnObject.ts, 28, 13))
|
||||
|
||||
o[k2];
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>k2 : Symbol(k2, Decl(noImplicitAnyStringIndexerOnObject.ts, 28, 13))
|
||||
|
||||
declare const sym : unique symbol;
|
||||
>sym : Symbol(sym, Decl(noImplicitAnyStringIndexerOnObject.ts, 31, 13))
|
||||
|
||||
o[sym];
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>sym : Symbol(sym, Decl(noImplicitAnyStringIndexerOnObject.ts, 31, 13))
|
||||
|
||||
enum NumEnum { a, b }
|
||||
>NumEnum : Symbol(NumEnum, Decl(noImplicitAnyStringIndexerOnObject.ts, 32, 7))
|
||||
>a : Symbol(NumEnum.a, Decl(noImplicitAnyStringIndexerOnObject.ts, 34, 14))
|
||||
>b : Symbol(NumEnum.b, Decl(noImplicitAnyStringIndexerOnObject.ts, 34, 17))
|
||||
|
||||
let numEnumKey: NumEnum;
|
||||
>numEnumKey : Symbol(numEnumKey, Decl(noImplicitAnyStringIndexerOnObject.ts, 35, 3))
|
||||
>NumEnum : Symbol(NumEnum, Decl(noImplicitAnyStringIndexerOnObject.ts, 32, 7))
|
||||
|
||||
o[numEnumKey];
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>numEnumKey : Symbol(numEnumKey, Decl(noImplicitAnyStringIndexerOnObject.ts, 35, 3))
|
||||
|
||||
|
||||
enum StrEnum { a = "a", b = "b" }
|
||||
>StrEnum : Symbol(StrEnum, Decl(noImplicitAnyStringIndexerOnObject.ts, 36, 14))
|
||||
>a : Symbol(StrEnum.a, Decl(noImplicitAnyStringIndexerOnObject.ts, 39, 14))
|
||||
>b : Symbol(StrEnum.b, Decl(noImplicitAnyStringIndexerOnObject.ts, 39, 23))
|
||||
|
||||
let strEnumKey: StrEnum;
|
||||
>strEnumKey : Symbol(strEnumKey, Decl(noImplicitAnyStringIndexerOnObject.ts, 40, 3))
|
||||
>StrEnum : Symbol(StrEnum, Decl(noImplicitAnyStringIndexerOnObject.ts, 36, 14))
|
||||
|
||||
o[strEnumKey];
|
||||
>o : Symbol(o, Decl(noImplicitAnyStringIndexerOnObject.ts, 22, 5))
|
||||
>strEnumKey : Symbol(strEnumKey, Decl(noImplicitAnyStringIndexerOnObject.ts, 40, 3))
|
||||
|
||||
|
||||
@@ -89,4 +89,63 @@ e['hello'] ++;
|
||||
>e : { set: (key: string) => string; get: (key: string) => string; }
|
||||
>'hello' : "hello"
|
||||
|
||||
const o = { a: 0 };
|
||||
>o : { a: number; }
|
||||
>{ a: 0 } : { a: number; }
|
||||
>a : number
|
||||
>0 : 0
|
||||
|
||||
declare const k: "a" | "b" | "c";
|
||||
>k : "a" | "b" | "c"
|
||||
|
||||
o[k];
|
||||
>o[k] : any
|
||||
>o : { a: number; }
|
||||
>k : "a" | "b" | "c"
|
||||
|
||||
|
||||
declare const k2: "c";
|
||||
>k2 : "c"
|
||||
|
||||
o[k2];
|
||||
>o[k2] : any
|
||||
>o : { a: number; }
|
||||
>k2 : "c"
|
||||
|
||||
declare const sym : unique symbol;
|
||||
>sym : unique symbol
|
||||
|
||||
o[sym];
|
||||
>o[sym] : any
|
||||
>o : { a: number; }
|
||||
>sym : unique symbol
|
||||
|
||||
enum NumEnum { a, b }
|
||||
>NumEnum : NumEnum
|
||||
>a : NumEnum.a
|
||||
>b : NumEnum.b
|
||||
|
||||
let numEnumKey: NumEnum;
|
||||
>numEnumKey : NumEnum
|
||||
|
||||
o[numEnumKey];
|
||||
>o[numEnumKey] : any
|
||||
>o : { a: number; }
|
||||
>numEnumKey : NumEnum
|
||||
|
||||
|
||||
enum StrEnum { a = "a", b = "b" }
|
||||
>StrEnum : StrEnum
|
||||
>a : StrEnum.a
|
||||
>"a" : "a"
|
||||
>b : StrEnum.b
|
||||
>"b" : "b"
|
||||
|
||||
let strEnumKey: StrEnum;
|
||||
>strEnumKey : StrEnum
|
||||
|
||||
o[strEnumKey];
|
||||
>o[strEnumKey] : any
|
||||
>o : { a: number; }
|
||||
>strEnumKey : StrEnum
|
||||
|
||||
|
||||
@@ -1,4 +1,5 @@
|
||||
tests/cases/conformance/types/nonPrimitive/nonPrimitiveIndexingWithForInNoImplicitAny.ts(4,17): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
|
||||
tests/cases/conformance/types/nonPrimitive/nonPrimitiveIndexingWithForInNoImplicitAny.ts(4,17): error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
|
||||
No index signature with a parameter of type 'string' was found on type '{}'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/types/nonPrimitive/nonPrimitiveIndexingWithForInNoImplicitAny.ts (1 errors) ====
|
||||
@@ -7,6 +8,7 @@ tests/cases/conformance/types/nonPrimitive/nonPrimitiveIndexingWithForInNoImplic
|
||||
for (var key in a) {
|
||||
var value = a[key]; // error
|
||||
~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
|
||||
!!! error TS7053: No index signature with a parameter of type 'string' was found on type '{}'.
|
||||
}
|
||||
|
||||
@@ -1,4 +1,5 @@
|
||||
tests/cases/conformance/types/spread/objectSpreadIndexSignature.ts(6,1): error TS7017: Element implicitly has an 'any' type because type '{ b: number; a: number; }' has no index signature.
|
||||
tests/cases/conformance/types/spread/objectSpreadIndexSignature.ts(6,1): error TS7053: Element implicitly has an 'any' type because expression of type '101' can't be used to index type '{ b: number; a: number; }'.
|
||||
Property '101' does not exist on type '{ b: number; a: number; }'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/types/spread/objectSpreadIndexSignature.ts (1 errors) ====
|
||||
@@ -9,7 +10,8 @@ tests/cases/conformance/types/spread/objectSpreadIndexSignature.ts(6,1): error T
|
||||
// only indexed has indexer, so i[101]: any
|
||||
i[101];
|
||||
~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type '{ b: number; a: number; }' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type '101' can't be used to index type '{ b: number; a: number; }'.
|
||||
!!! error TS7053: Property '101' does not exist on type '{ b: number; a: number; }'.
|
||||
let ii = { ...indexed1, ...indexed2 };
|
||||
// both have indexer, so i[1001]: number | boolean
|
||||
ii[1001];
|
||||
|
||||
@@ -1,5 +1,6 @@
|
||||
tests/cases/conformance/expressions/propertyAccess/propertyAccessStringIndexSignatureNoImplicitAny.ts(10,7): error TS2339: Property 'nope' does not exist on type 'Empty'.
|
||||
tests/cases/conformance/expressions/propertyAccess/propertyAccessStringIndexSignatureNoImplicitAny.ts(11,1): error TS7017: Element implicitly has an 'any' type because type 'Empty' has no index signature.
|
||||
tests/cases/conformance/expressions/propertyAccess/propertyAccessStringIndexSignatureNoImplicitAny.ts(11,1): error TS7053: Element implicitly has an 'any' type because expression of type '"not allowed either"' can't be used to index type 'Empty'.
|
||||
Property 'not allowed either' does not exist on type 'Empty'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/expressions/propertyAccess/propertyAccessStringIndexSignatureNoImplicitAny.ts (2 errors) ====
|
||||
@@ -17,5 +18,6 @@ tests/cases/conformance/expressions/propertyAccess/propertyAccessStringIndexSign
|
||||
!!! error TS2339: Property 'nope' does not exist on type 'Empty'.
|
||||
empty["not allowed either"];
|
||||
~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type 'Empty' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type '"not allowed either"' can't be used to index type 'Empty'.
|
||||
!!! error TS7053: Property 'not allowed either' does not exist on type 'Empty'.
|
||||
|
||||
@@ -1,5 +1,6 @@
|
||||
tests/cases/conformance/salsa/bug26885.js(2,5): error TS2683: 'this' implicitly has type 'any' because it does not have a type annotation.
|
||||
tests/cases/conformance/salsa/bug26885.js(11,16): error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
|
||||
tests/cases/conformance/salsa/bug26885.js(11,16): error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
|
||||
No index signature with a parameter of type 'string' was found on type '{}'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/salsa/bug26885.js (2 errors) ====
|
||||
@@ -17,7 +18,8 @@ tests/cases/conformance/salsa/bug26885.js(11,16): error TS7017: Element implicit
|
||||
get(key) {
|
||||
return this._map[key + ''];
|
||||
~~~~~~~~~~~~~~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type '{}' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'string' can't be used to index type '{}'.
|
||||
!!! error TS7053: No index signature with a parameter of type 'string' was found on type '{}'.
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -1,9 +1,11 @@
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(11,3): error TS2339: Property 'bar' does not exist on type 'Missing'.
|
||||
Property 'bar' does not exist on type '{ [s: string]: string; }'.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(14,4): error TS2540: Cannot assign to 'foo' because it is a read-only property.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(24,1): error TS7017: Element implicitly has an 'any' type because type 'Both' has no index signature.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(24,1): error TS7053: Element implicitly has an 'any' type because expression of type '1' can't be used to index type 'Both'.
|
||||
Property '1' does not exist on type 'Both'.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(25,1): error TS2322: Type '"not ok"' is not assignable to type 'number'.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(26,1): error TS7017: Element implicitly has an 'any' type because type 'Both' has no index signature.
|
||||
tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(26,1): error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type 'Both'.
|
||||
Property '[sym]' does not exist on type 'Both'.
|
||||
|
||||
|
||||
==== tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts (5 errors) ====
|
||||
@@ -37,11 +39,13 @@ tests/cases/conformance/types/union/unionTypeWithIndexSignature.ts(26,1): error
|
||||
both[0] = 1
|
||||
both[1] = 0 // not ok
|
||||
~~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type 'Both' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type '1' can't be used to index type 'Both'.
|
||||
!!! error TS7053: Property '1' does not exist on type 'Both'.
|
||||
both[0] = 'not ok'
|
||||
~~~~~~~
|
||||
!!! error TS2322: Type '"not ok"' is not assignable to type 'number'.
|
||||
both[sym] = 'not ok'
|
||||
~~~~~~~~~
|
||||
!!! error TS7017: Element implicitly has an 'any' type because type 'Both' has no index signature.
|
||||
!!! error TS7053: Element implicitly has an 'any' type because expression of type 'unique symbol' can't be used to index type 'Both'.
|
||||
!!! error TS7053: Property '[sym]' does not exist on type 'Both'.
|
||||
|
||||
@@ -22,3 +22,23 @@ e['hello'] = 'modified';
|
||||
e['hello'] += 1;
|
||||
e['hello'] ++;
|
||||
|
||||
const o = { a: 0 };
|
||||
|
||||
declare const k: "a" | "b" | "c";
|
||||
o[k];
|
||||
|
||||
|
||||
declare const k2: "c";
|
||||
o[k2];
|
||||
|
||||
declare const sym : unique symbol;
|
||||
o[sym];
|
||||
|
||||
enum NumEnum { a, b }
|
||||
let numEnumKey: NumEnum;
|
||||
o[numEnumKey];
|
||||
|
||||
|
||||
enum StrEnum { a = "a", b = "b" }
|
||||
let strEnumKey: StrEnum;
|
||||
o[strEnumKey];
|
||||
|
||||
Reference in New Issue
Block a user