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tests/cases/conformance/expressions/contextualTyping/argumentExpressionContextualTyping.ts(16,5): error TS2345: Argument of type '(string | number | boolean)[]' is not assignable to parameter of type '[string, number, boolean]'.
Target requires 3 element(s) but source may have fewer.
tests/cases/conformance/expressions/contextualTyping/argumentExpressionContextualTyping.ts(17,5): error TS2345: Argument of type '[string, number, true, ...(string | number | boolean)[]]' is not assignable to parameter of type '[string, number, boolean]'.
Target allows only 3 element(s) but source may have more.
tests/cases/conformance/expressions/contextualTyping/argumentExpressionContextualTyping.ts(18,5): error TS2345: Argument of type '{ x: (string | number)[]; y: { c: boolean; d: string; e: number; }; }' is not assignable to parameter of type '{ x: [any, any]; y: { c: any; d: any; e: any; }; }'.
Types of property 'x' are incompatible.
Type '(string | number)[]' is not assignable to type '[any, any]'.
Target requires 2 element(s) but source may have fewer.
==== tests/cases/conformance/expressions/contextualTyping/argumentExpressionContextualTyping.ts (3 errors) ====
// In a typed function call, argument expressions are contextually typed by their corresponding parameter types.
function foo({x: [a, b], y: {c, d, e}}) { }
function bar({x: [a, b = 10], y: {c, d, e = { f:1 }}}) { }
function baz(x: [string, number, boolean]) { }
var o = { x: ["string", 1], y: { c: true, d: "world", e: 3 } };
var o1: { x: [string, number], y: { c: boolean, d: string, e: number } } = { x: ["string", 1], y: { c: true, d: "world", e: 3 } };
foo(o1); // Not error since x has contextual type of tuple namely [string, number]
foo({ x: ["string", 1], y: { c: true, d: "world", e: 3 } }); // Not error
var array = ["string", 1, true];
var tuple: [string, number, boolean] = ["string", 1, true];
baz(tuple);
baz(["string", 1, true]);
baz(array); // Error
~~~~~
!!! error TS2345: Argument of type '(string | number | boolean)[]' is not assignable to parameter of type '[string, number, boolean]'.
!!! error TS2345: Target requires 3 element(s) but source may have fewer.
baz(["string", 1, true, ...array]); // Error
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
!!! error TS2345: Argument of type '[string, number, true, ...(string | number | boolean)[]]' is not assignable to parameter of type '[string, number, boolean]'.
!!! error TS2345: Target allows only 3 element(s) but source may have more.
foo(o); // Error because x has an array type namely (string|number)[]
~
!!! error TS2345: Argument of type '{ x: (string | number)[]; y: { c: boolean; d: string; e: number; }; }' is not assignable to parameter of type '{ x: [any, any]; y: { c: any; d: any; e: any; }; }'.
!!! error TS2345: Types of property 'x' are incompatible.
!!! error TS2345: Type '(string | number)[]' is not assignable to type '[any, any]'.
!!! error TS2345: Target requires 2 element(s) but source may have fewer.
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