File: arrayLiteralExpressionContextualTyping.errors.txt

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tests/cases/conformance/expressions/contextualTyping/arrayLiteralExpressionContextualTyping.ts(8,5): error TS2322: Type '[number, number, number, string]' is not assignable to type '[number, number, number]'.
  Types of property 'pop' are incompatible.
    Type '() => string | number' is not assignable to type '() => number'.
      Type 'string | number' is not assignable to type 'number'.
        Type 'string' is not assignable to type 'number'.
tests/cases/conformance/expressions/contextualTyping/arrayLiteralExpressionContextualTyping.ts(14,5): error TS2322: Type 'number[]' is not assignable to type '[number, number, number]'.
  Property '0' is missing in type 'number[]'.


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