| function assert(b) { | |
| if (!b) | |
| throw new Error("Bad assertion") | |
| } | |
| function foo() { | |
| class Foo { | |
| ensureX() { | |
| if (!this.x) | |
| this.x = 22; | |
| return this; | |
| } | |
| }; | |
| return Foo; | |
| } | |
| function access(o) { | |
| return assert(o.ensureX().x === 22); | |
| } | |
| noInline(access); | |
| let ctors = []; | |
| for (let i = 0; i < 50; ++i) { | |
| let ctor = foo(); | |
| new ctor; // warm things up | |
| ctors.push(ctor); | |
| } | |
| let start = Date.now(); | |
| for (let i = 0; i < 5000; ++i) { | |
| for (let i = 0; i < ctors.length; ++i) | |
| access(new ctors[i]); | |
| } | |
| if (false) | |
| print(Date.now() - start); |