| function assert(b) { | |
| if (!b) | |
| throw new Error; | |
| } | |
| noInline(assert); | |
| function foo(a, b) { | |
| let r1 = b[0]; | |
| let x = [...a]; | |
| let r2 = b[0]; | |
| assert(r1 + r2 === 43); | |
| } | |
| noInline(foo); | |
| let b = [42]; | |
| let a = []; | |
| a[Symbol.iterator] = function* () { | |
| b[0] = 1; | |
| }; | |
| for (let i = 0; i < 10000; ++i) { | |
| b[0] = 42; | |
| foo(a, b); | |
| } |