diff options
Diffstat (limited to 'js/src/tests/non262/Iterator/from/proxy-wrap-next.js')
-rw-r--r-- | js/src/tests/non262/Iterator/from/proxy-wrap-next.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/from/proxy-wrap-next.js b/js/src/tests/non262/Iterator/from/proxy-wrap-next.js new file mode 100644 index 0000000000..6be4e4b27b --- /dev/null +++ b/js/src/tests/non262/Iterator/from/proxy-wrap-next.js @@ -0,0 +1,30 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) -- Iterator is not enabled unconditionally +const log = []; +const handlerProxy = new Proxy({}, { + get: (target, key, receiver) => (...args) => { + log.push(`${key}: ${args[1]?.toString()}`); + + const item = Reflect[key](...args); + if (typeof item === 'function') + return item.bind(receiver); + return item; + }, +}); +const iter = new Proxy({ + next: () => ({ done: false, value: 0 }), +}, handlerProxy); + +const wrap = Iterator.from(iter); +// Call next multiple times. Should not call `get` on proxy. +wrap.next(); +wrap.next(); +wrap.next(); + +assertEqArray(log, [ + "get: Symbol(Symbol.iterator)", + "get: next", + "getPrototypeOf: undefined", +]); + +if (typeof reportCompare === 'function') + reportCompare(0, 0); |