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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/Iterator/prototype/map/proxy-abrupt-completion.js | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/non262/Iterator/prototype/map/proxy-abrupt-completion.js b/js/src/tests/non262/Iterator/prototype/map/proxy-abrupt-completion.js new file mode 100644 index 0000000000..ea0e10bdb4 --- /dev/null +++ b/js/src/tests/non262/Iterator/prototype/map/proxy-abrupt-completion.js @@ -0,0 +1,54 @@ +// |reftest| skip-if(!this.hasOwnProperty('Iterator')) +// + +/*--- +esid: pending +description: %Iterator.prototype%.map accesses specified properties only. +info: > +features: [iterator-helpers] +---*/ + +const handlerProxy = log => new Proxy({}, { + get: (target, key, receiver) => (...args) => { + const target = args[0]; + const item = Reflect[key](...args); + + log.push(`${key}: ${args.filter(x => typeof x != 'object').map(x => x.toString())}`); + + switch (typeof item) { + case 'function': return item.bind(new Proxy(target, handlerProxy(log))); + case 'object': return new Proxy(item, handlerProxy(log)); + default: return item; + } + }, +}); + +const log = []; +const iterator = Object.setPrototypeOf({ + next: function() { + return { done: false, value: 0 }; + }, + return: function(value) { + log.push('close iterator'); + return { done: true, value }; + }, +}, Iterator.prototype); +const iteratorProxy = new Proxy(iterator, handlerProxy(log)); +const mappedProxy = iteratorProxy.map(x => { throw 'error'; }); + +try { + mappedProxy.next(); +} catch (exc) { + assertEq(exc, 'error'); +} + +assertEq( + log.join('\n'), +`get: map +get: next +get: return +close iterator` +); + +if (typeof reportCompare == 'function') + reportCompare(0, 0); |