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.
22 lines
661 B
JavaScript
22 lines
661 B
JavaScript
function test1(gen: Generator<void, string, void>) {
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// You can pass whatever you like to return, it doesn't need to be related to
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// the Generator's return type
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var ret = gen.return(0);
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(ret.value: void); // error: string | number ~> void
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}
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// However, a generator can "refuse" the return by catching an exception and
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// yielding or returning internally.
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function *refuse_return() {
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try {
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yield 1;
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} finally {
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return 0;
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}
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}
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var refuse_return_gen = refuse_return();
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var refuse_return_result = refuse_return_gen.return("string");
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if (refuse_return_result.done) {
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(refuse_return_result.value: string); // error: number | void ~> string
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}
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