Add regression test
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3 changed files with 70 additions and 4 deletions
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@ -45,9 +45,11 @@ tests/cases/conformance/types/mapped/mappedTypeErrors.ts(130,5): error TS2322: T
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tests/cases/conformance/types/mapped/mappedTypeErrors.ts(131,5): error TS2322: Type '{ a: string; }' is not assignable to type '{ [x: string]: any; a?: number | undefined; }'.
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Types of property 'a' are incompatible.
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Type 'string' is not assignable to type 'number | undefined'.
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tests/cases/conformance/types/mapped/mappedTypeErrors.ts(137,16): error TS2322: Type '{}' is not assignable to type 'string'.
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tests/cases/conformance/types/mapped/mappedTypeErrors.ts(137,21): error TS2536: Type 'P' cannot be used to index type 'T'.
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==== tests/cases/conformance/types/mapped/mappedTypeErrors.ts (24 errors) ====
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==== tests/cases/conformance/types/mapped/mappedTypeErrors.ts (26 errors) ====
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interface Shape {
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name: string;
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@ -249,4 +251,22 @@ tests/cases/conformance/types/mapped/mappedTypeErrors.ts(131,5): error TS2322: T
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~~
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!!! error TS2322: Type '{ a: string; }' is not assignable to type '{ [x: string]: any; a?: number | undefined; }'.
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!!! error TS2322: Types of property 'a' are incompatible.
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!!! error TS2322: Type 'string' is not assignable to type 'number | undefined'.
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!!! error TS2322: Type 'string' is not assignable to type 'number | undefined'.
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// Repro from #13044
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type Foo2<T, F extends keyof T> = {
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pf: {[P in F]?: T[P]},
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pt: {[P in T]?: T[P]}, // note: should be in keyof T
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~
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!!! error TS2322: Type '{}' is not assignable to type 'string'.
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~~~~
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!!! error TS2536: Type 'P' cannot be used to index type 'T'.
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};
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type O = {x: number, y: boolean};
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let o: O = {x: 5, y: false};
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let f: Foo2<O, 'x'> = {
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pf: {x: 7},
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pt: {x: 7, y: false},
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};
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@ -129,7 +129,21 @@ type T2 = { a?: number, [key: string]: any };
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let x1: T2 = { a: 'no' }; // Error
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let x2: Partial<T2> = { a: 'no' }; // Error
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let x3: { [P in keyof T2]: T2[P]} = { a: 'no' }; // Error
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let x3: { [P in keyof T2]: T2[P]} = { a: 'no' }; // Error
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// Repro from #13044
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type Foo2<T, F extends keyof T> = {
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pf: {[P in F]?: T[P]},
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pt: {[P in T]?: T[P]}, // note: should be in keyof T
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};
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type O = {x: number, y: boolean};
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let o: O = {x: 5, y: false};
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let f: Foo2<O, 'x'> = {
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pf: {x: 7},
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pt: {x: 7, y: false},
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};
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//// [mappedTypeErrors.js]
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function f1(x) {
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@ -204,6 +218,11 @@ c.setState({ c: true }); // Error
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var x1 = { a: 'no' }; // Error
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var x2 = { a: 'no' }; // Error
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var x3 = { a: 'no' }; // Error
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var o = { x: 5, y: false };
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var f = {
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pf: { x: 7 },
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pt: { x: 7, y: false }
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};
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//// [mappedTypeErrors.d.ts]
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@ -268,3 +287,17 @@ declare let x2: Partial<T2>;
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declare let x3: {
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[P in keyof T2]: T2[P];
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};
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declare type Foo2<T, F extends keyof T> = {
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pf: {
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[P in F]?: T[P];
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};
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pt: {
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[P in T]?: T[P];
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};
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};
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declare type O = {
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x: number;
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y: boolean;
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};
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declare let o: O;
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declare let f: Foo2<O, 'x'>;
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@ -130,4 +130,17 @@ type T2 = { a?: number, [key: string]: any };
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let x1: T2 = { a: 'no' }; // Error
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let x2: Partial<T2> = { a: 'no' }; // Error
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let x3: { [P in keyof T2]: T2[P]} = { a: 'no' }; // Error
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let x3: { [P in keyof T2]: T2[P]} = { a: 'no' }; // Error
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// Repro from #13044
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type Foo2<T, F extends keyof T> = {
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pf: {[P in F]?: T[P]},
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pt: {[P in T]?: T[P]}, // note: should be in keyof T
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};
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type O = {x: number, y: boolean};
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let o: O = {x: 5, y: false};
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let f: Foo2<O, 'x'> = {
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pf: {x: 7},
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pt: {x: 7, y: false},
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};
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