Christopher Chedeau
cf45afba61
- This brings in the flow test suite that contains a ton of JavaScript parsing edge cases - This creates snapshot tests using the pretty printer for all of them - If uncomment `RUN_AST_TESTS` line in `tests/run_specs.js`, it checks ast(pretty_print(x)) == ast(x). Right now, "178 failed, 197 passed, 375 of 377 total". So half of the tests are not passing, most of them are crashes and many of the rest are subtle issues.
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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