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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/AsyncIterator/prototype/toArray/proxy.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/AsyncIterator/prototype/toArray/proxy.js b/js/src/tests/non262/AsyncIterator/prototype/toArray/proxy.js new file mode 100644 index 0000000000..b82af6628e --- /dev/null +++ b/js/src/tests/non262/AsyncIterator/prototype/toArray/proxy.js @@ -0,0 +1,44 @@ +// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator')) +// +// This test checks that %Iterator.prototype%.toArray only gets the `next` method off of the +// iterator once, and never accesses the @@iterator property. +const log = []; +const handlerProxy = new Proxy({}, { + get: (target, key, receiver) => (...args) => { + log.push(`${key}: ${args[1]?.toString()}`); + return Reflect[key](...args); + }, +}); + +class Counter extends AsyncIterator { + value = 0; + next() { + const value = this.value; + if (value < 2) { + this.value = value + 1; + return Promise.resolve({done: false, value}); + } + return Promise.resolve({done: true}); + } +} + +const iter = new Proxy(new Counter(), handlerProxy); +iter.toArray().then(() => { + assertEq( + log.join('\n'), + `get: toArray +get: next +get: value +set: value +getOwnPropertyDescriptor: value +defineProperty: value +get: value +set: value +getOwnPropertyDescriptor: value +defineProperty: value +get: value` + ); +}); + +if (typeof reportCompare === 'function') + reportCompare(0, 0); |