63 lines
2 KiB
Plaintext
63 lines
2 KiB
Plaintext
==== tests/cases/conformance/types/objectTypeLiteral/indexSignatures/numericIndexerConstrainsPropertyDeclarations2.ts (7 errors) ====
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// String indexer providing a constraint of a user defined type
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class A {
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foo(): string { return ''; }
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}
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class B extends A {
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bar(): string { return ''; }
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}
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class Foo {
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[x: number]: A;
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1.0: A; // ok
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2.0: B; // ok
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"2.5": B // ok
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3.0: number; // error
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~~~~~~~~~~~~
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!!! Property '3.0' of type 'number' is not assignable to numeric index type 'A'.
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"4.0": string; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'string' is not assignable to numeric index type 'A'.
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}
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interface Foo2 {
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[x: number]: A;
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1.0: A; // ok
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2.0: B; // ok
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"2.5": B // ok
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3.0: number; // error
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~~~~~~~~~~~~
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!!! Property '3.0' of type 'number' is not assignable to numeric index type 'A'.
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"4.0": string; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'string' is not assignable to numeric index type 'A'.
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}
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var a: {
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[x: number]: A;
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1.0: A; // ok
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2.0: B; // ok
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"2.5": B // ok
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3.0: number; // error
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~~~~~~~~~~~~
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!!! Property '3.0' of type 'number' is not assignable to numeric index type 'A'.
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"4.0": string; // error
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~~~~~~~~~~~~~~
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!!! Property '"4.0"' of type 'string' is not assignable to numeric index type 'A'.
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};
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// error
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var b: { [x: number]: A } = {
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~
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!!! Type '{ [x: number]: {}; 1.0: A; 2.0: B; 3.0: number; "2.5": B; "4.0": string; }' is not assignable to type '{ [x: number]: A; }':
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!!! Index signatures are incompatible:
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!!! Type '{}' is not assignable to type 'A':
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!!! Property 'foo' is missing in type '{}'.
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1.0: new A(),
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2.0: new B(),
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"2.5": new B(),
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3.0: 1,
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"4.0": ''
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} |