33 lines
764 B
JavaScript
33 lines
764 B
JavaScript
// @flow
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/**
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* test nested-promise unwrapping.
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* Note: currently we don't do this properly in the underlying
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* type of the Promise class, which causes spurious errors to
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* be raised here. Once that's fixed, the errors here will go
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* away.
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*/
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async function foo() {
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return 42;
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}
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async function bar() {
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return foo();
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}
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async function baz() {
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// a should now be typed as number, but is in fact
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// Promise<number> until nested-promise unwrap is fixed
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var a = await bar();
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// TODO this is valid code, but currently gives Promise ~> number error
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// due to lack of transitive Promise unwrap.
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var b: number = a;
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// should be number ~> string error, but currently gives
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// Promise ~> string error for the same reason
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var c: string = a;
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}
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