Files
test-repo/tests/classes/class_shapes.js
T
Christopher Chedeau cf45afba61 Add testing
- 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.
2016-12-23 19:51:53 +00:00

36 lines
681 B
JavaScript

/* @flow */
type Foo = {
a: string; // exists in TestClass
b: string; // doesn't exist
c?: ?string; // exists in TestClass, optional
d?: number; // doesn't exist
}
class TestClass {
a: string;
c: ?string;
}
var x = new TestClass();
x.a; // ok
x.b; // error, TestClass has no b
x.c; // ok
x.d; // error, TestClass has no d
var y : Foo = x;
y.b; // error, doesn't exist in TestClass
y.d; // ok, it's optional
class Test2Superclass {
a: number; // conflicts with cast to Foo
c: ?number; // conflicts with cast to Foo
}
class Test2Class extends Test2Superclass {
b: number; // conflicts with cast to Foo
}
var z = new Test2Class();
var w : Foo = z;