34 lines
2.4 KiB
Plaintext
34 lines
2.4 KiB
Plaintext
tests/cases/conformance/expressions/contextualTyping/arrayLiteralExpressionContextualTyping.ts(8,5): error TS2322: Type '[number, number, number, string]' is not assignable to type '[number, number, number]'.
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Types of property 'pop' are incompatible.
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Type '() => string | number' is not assignable to type '() => number'.
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Type 'string | number' is not assignable to type 'number'.
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Type 'string' is not assignable to type 'number'.
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tests/cases/conformance/expressions/contextualTyping/arrayLiteralExpressionContextualTyping.ts(14,5): error TS2322: Type 'number[]' is not assignable to type '[number, number, number]'.
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Property '0' is missing in type 'number[]'.
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==== tests/cases/conformance/expressions/contextualTyping/arrayLiteralExpressionContextualTyping.ts (2 errors) ====
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// In a contextually typed array literal expression containing no spread elements, an element expression at index N is contextually typed by
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// the type of the property with the numeric name N in the contextual type, if any, or otherwise
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// the numeric index type of the contextual type, if any.
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var array = [1, 2, 3];
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var array1 = [true, 2, 3]; // Contextual type by the numeric index type of the contextual type
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var tup: [number, number, number] = [1, 2, 3, 4];
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var tup1: [number|string, number|string, number|string] = [1, 2, 3, "string"];
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var tup2: [number, number, number] = [1, 2, 3, "string"]; // Error
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~~~~
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!!! error TS2322: Type '[number, number, number, string]' is not assignable to type '[number, number, number]'.
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!!! error TS2322: Types of property 'pop' are incompatible.
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!!! error TS2322: Type '() => string | number' is not assignable to type '() => number'.
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!!! error TS2322: Type 'string | number' is not assignable to type 'number'.
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!!! error TS2322: Type 'string' is not assignable to type 'number'.
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// In a contextually typed array literal expression containing one or more spread elements,
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// an element expression at index N is contextually typed by the numeric index type of the contextual type, if any.
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var spr = [1, 2, 3, ...array];
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var spr1 = [1, 2, 3, ...tup];
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var spr2:[number, number, number] = [1, 2, 3, ...tup]; // Error
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~~~~
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!!! error TS2322: Type 'number[]' is not assignable to type '[number, number, number]'.
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!!! error TS2322: Property '0' is missing in type 'number[]'.
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