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//// [arrayLiteralExpressionContextualTyping.ts]
// 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
// 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
//// [arrayLiteralExpressionContextualTyping.js]
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
// 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 = [1, 2, 3, 4];
var tup1 = [1, 2, 3, "string"];
var tup2 = [1, 2, 3, "string"]; // Error
// 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 = __spreadArray([1, 2, 3], array, true);
var spr1 = __spreadArray([1, 2, 3], tup, true);
var spr2 = __spreadArray([1, 2, 3], tup, true); // Error
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