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.
26 lines
835 B
JavaScript
26 lines
835 B
JavaScript
function foo<T: number>(x: T): T {
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var _ = x * 1; // OK
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var y: string = x; // error
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return x; // OK
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}
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class C<T: number> {
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bar<U: number>(x: U): T {
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return x; // error, since T: number and U: number does not imply U: T
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}
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qux<U: T>(x: U): T {
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var _ = x * 1; // OK, since T: number and U: T implies U: number
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var y: string = x; // error
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return x; // OK, since U: T
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}
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}
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function example<T: {x: number}>(o: T): T { o.x = 0; return o; }
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var obj1: {x: number; y: string} = example({x: 0, y: ""});
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var obj2: {x: number} = example({x: 0});
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var c: C<string> = new C; // error, since T = string is incompatible with number
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var q: number = c.qux(0);
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/* 2 more errors, since argument U = number is incompatible with T = string, and
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* result T = string is incompatible with number */
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