156 lines
5.4 KiB
Plaintext
156 lines
5.4 KiB
Plaintext
==== tests/cases/conformance/types/objectTypeLiteral/indexSignatures/stringIndexerConstrainsPropertyDeclarations.ts (27 errors) ====
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// String indexer types constrain the types of named properties in their containing type
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interface MyString extends String {
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foo: number;
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}
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class C {
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[x: string]: string;
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constructor() { } // ok
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a: string; // ok
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b: number; // error
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~~~~~~~~~~
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!!! Property 'b' of type 'number' is not assignable to string index type 'string'.
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c: () => {} // error
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~~~~~~~~~~~
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!!! Property 'c' of type '() => {}' is not assignable to string index type 'string'.
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"d": string; // ok
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"e": number; // error
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~~~~~~~~~~~~
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!!! Property '"e"' of type 'number' is not assignable to string index type 'string'.
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1.0: string; // ok
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2.0: number; // error
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~~~~~~~~~~~~
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!!! Property '2.0' of type 'number' is not assignable to string index type 'string'.
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"3.0": string; // ok
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"4.0": number; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'number' is not assignable to string index type 'string'.
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f: MyString; // error
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~~~~~~~~~~~~
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!!! Property 'f' of type 'MyString' is not assignable to string index type 'string'.
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get X() { // ok
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~
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!!! Accessors are only available when targeting ECMAScript 5 and higher.
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return '';
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}
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set X(v) { } // ok
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~
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!!! Accessors are only available when targeting ECMAScript 5 and higher.
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foo() { // error
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~~~~~~~~~~~~~~~~
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return '';
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~~~~~~~~~~~~~~~~~~
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}
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~~~~~
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!!! Property 'foo' of type '() => string' is not assignable to string index type 'string'.
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static sa: number; // ok
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static sb: string; // ok
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static foo() { } // ok
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static get X() { // ok
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~
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!!! Accessors are only available when targeting ECMAScript 5 and higher.
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return 1;
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}
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}
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interface I {
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[x: string]: string;
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a: string; // ok
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b: number; // error
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~~~~~~~~~~
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!!! Property 'b' of type 'number' is not assignable to string index type 'string'.
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c: () => {} // error
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~~~~~~~~~~~
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!!! Property 'c' of type '() => {}' is not assignable to string index type 'string'.
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"d": string; // ok
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"e": number; // error
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~~~~~~~~~~~~
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!!! Property '"e"' of type 'number' is not assignable to string index type 'string'.
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1.0: string; // ok
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2.0: number; // error
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~~~~~~~~~~~~
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!!! Property '2.0' of type 'number' is not assignable to string index type 'string'.
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(): string; // ok
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(x): number // ok
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foo(): string; // error
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~~~~~~~~~~~~~~
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!!! Property 'foo' of type '() => string' is not assignable to string index type 'string'.
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"3.0": string; // ok
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"4.0": number; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'number' is not assignable to string index type 'string'.
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f: MyString; // error
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~~~~~~~~~~~~
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!!! Property 'f' of type 'MyString' is not assignable to string index type 'string'.
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}
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var a: {
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[x: string]: string;
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a: string; // ok
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b: number; // error
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~~~~~~~~~~
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!!! Property 'b' of type 'number' is not assignable to string index type 'string'.
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c: () => {} // error
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~~~~~~~~~~~
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!!! Property 'c' of type '() => {}' is not assignable to string index type 'string'.
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"d": string; // ok
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"e": number; // error
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~~~~~~~~~~~~
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!!! Property '"e"' of type 'number' is not assignable to string index type 'string'.
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1.0: string; // ok
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2.0: number; // error
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~~~~~~~~~~~~
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!!! Property '2.0' of type 'number' is not assignable to string index type 'string'.
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(): string; // ok
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(x): number // ok
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foo(): string; // error
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~~~~~~~~~~~~~~
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!!! Property 'foo' of type '() => string' is not assignable to string index type 'string'.
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"3.0": string; // ok
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"4.0": number; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'number' is not assignable to string index type 'string'.
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f: MyString; // error
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~~~~~~~~~~~~
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!!! Property 'f' of type 'MyString' is not assignable to string index type 'string'.
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}
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// error
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var b: { [x: string]: string; } = {
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~
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!!! Type '{ [x: string]: {}; 1.0: string; 2.0: number; a: string; b: number; c: () => void; "d": string; "e": number; "3.0": string; "4.0": number; f: MyString; X: string; foo: () => string; }' is not assignable to type '{ [x: string]: string; }':
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!!! Index signatures are incompatible:
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!!! Type '{}' is not assignable to type 'string'.
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a: '',
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b: 1,
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c: () => { },
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"d": '',
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"e": 1,
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1.0: '',
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2.0: 1,
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"3.0": '',
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"4.0": 1,
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f: <MyString>null,
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get X() {
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~
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!!! Accessors are only available when targeting ECMAScript 5 and higher.
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return '';
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},
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set X(v) { },
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~
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!!! Accessors are only available when targeting ECMAScript 5 and higher.
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foo() {
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return '';
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}
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} |