Show exact error position in arrays & arrow functions · Issue #27030 · microsoft/TypeScript (original) (raw)

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Description

If it is not assignable error and infered expression type origin comes from inside of ast error boundaries we can show exact position of an error source

interface Foo { a: number; }

function foo1(): () => Foo { return () => ({a: ''}); }

function foo2(): Promise { return Promise.resolve({a: ''}); }

function foo3(): Foo[] { return [{a: ''}]; } var y: Foo[] = [{a: ''}] var z: Foo[] = [].map(() => ({a: ''}))

@DanielRosenwasser what do you think?