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.
25 lines
739 B
JavaScript
25 lines
739 B
JavaScript
type Key1 = 'foo' | 'bar'; // make an enum type with known key set
|
|
var o1: {[key: Key1]: number} = {
|
|
foo: 0,
|
|
bar: "", // error: string ~/~ number
|
|
};
|
|
o1.foo; // OK
|
|
o1.qux; // error: qux not found
|
|
o1.toString(); // ok
|
|
|
|
type R = {foo: any, bar: any};
|
|
type Key2 = $Keys<R>; // another way to make an enum type, with unknown key set
|
|
var o2: {[key: Key2]: number} = { foo: 0 }; // OK to leave out bar
|
|
o2.bar; // OK to access bar
|
|
o2.qux; // error: qux not found
|
|
|
|
class C<X> {
|
|
x: $Subtype<{[key: $Keys<X>]: any}>; // object with larger key set than X's
|
|
}
|
|
class D extends C<{foo: number, bar: string}> {
|
|
x: { foo: number, qux: boolean }; // error: qux not found
|
|
}
|
|
|
|
type AnyKey = $Keys<Object>;
|
|
var o3: {[key: AnyKey]: number} = { foo: 0 };
|