TypeScript/tests/baselines/reference/iteratorSpreadInArray2.types
Wesley Wigham 87d10eb055
Eliminate well known symbols as a concept in the checker and rely on unique symbols (#42543)
* Eliminate well-known symbols in the checker: 2021 edition

* Actually update the lib text to say unique symbol, too (this is unneeded with compat code in place, but this makes goto-def make more sense)

* Add test showing mismatched symbol constructor type interop

* Add more test cases for some other related issues this fixes

* Revert computed name change

* Style comments
2021-02-22 14:43:28 -08:00

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=== tests/cases/conformance/es6/spread/iteratorSpreadInArray2.ts ===
class SymbolIterator {
>SymbolIterator : SymbolIterator
next() {
>next : () => { value: symbol; done: boolean; }
return {
>{ value: Symbol(), done: false } : { value: symbol; done: boolean; }
value: Symbol(),
>value : symbol
>Symbol() : symbol
>Symbol : SymbolConstructor
done: false
>done : boolean
>false : false
};
}
[Symbol.iterator]() {
>[Symbol.iterator] : () => this
>Symbol.iterator : unique symbol
>Symbol : SymbolConstructor
>iterator : unique symbol
return this;
>this : this
}
}
class NumberIterator {
>NumberIterator : NumberIterator
next() {
>next : () => { value: number; done: boolean; }
return {
>{ value: 0, done: false } : { value: number; done: boolean; }
value: 0,
>value : number
>0 : 0
done: false
>done : boolean
>false : false
};
}
[Symbol.iterator]() {
>[Symbol.iterator] : () => this
>Symbol.iterator : unique symbol
>Symbol : SymbolConstructor
>iterator : unique symbol
return this;
>this : this
}
}
var array = [...new NumberIterator, ...new SymbolIterator];
>array : (number | symbol)[]
>[...new NumberIterator, ...new SymbolIterator] : (number | symbol)[]
>...new NumberIterator : number
>new NumberIterator : NumberIterator
>NumberIterator : typeof NumberIterator
>...new SymbolIterator : symbol
>new SymbolIterator : SymbolIterator
>SymbolIterator : typeof SymbolIterator