TypeScript/tests/cases/conformance/types/union/unionTypeReduction.ts
Anders Hejlsberg c91e2855ca Adding test
2015-04-12 10:52:20 -07:00

16 lines
297 B
TypeScript

interface I2 {
(): number;
(q): boolean;
}
interface I3 {
(): number;
}
var i2: I2, i3: I3;
var e1: I2 | I3;
var e2 = i2 || i3; // Type of e2 immediately reduced to I3
var r1 = e1(); // Type of e1 reduced to I3 upon accessing property or signature
var r2 = e2();