v8/test/mjsunit/runtime-gen/mapiteratornext.js

// Copyright 2014 the V8 project authors. All rights reserved.
// AUTO-GENERATED BY tools/generate-runtime-tests.py, DO NOT MODIFY
// Flags: --allow-natives-syntax --harmony
var _holder = new Map().entries();
var _value_array = new Array();
%MapIteratorNext(_holder, _value_array);
Add test case generator for runtime functions R=dslomov@chromium.org, machenbach@chromium.org Review URL: https://codereview.chromium.org/250923002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21199 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 2014-05-08 13:11:59 +00:00			`// Copyright 2014 the V8 project authors. All rights reserved.`
			`// AUTO-GENERATED BY tools/generate-runtime-tests.py, DO NOT MODIFY`
			`// Flags: --allow-natives-syntax --harmony`
ES6: Add support for values/keys/entries for Map and Set This allows code like this: var map = new Map(); map.set(1, 'One'); ... var iter = map.values(); var res; while (!(res = iter.next()).done) { print(res.value); } BUG=v8:1793 LOG=Y R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/259883002 Patch from Erik Arvidsson <arv@chromium.org>. git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21615 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 2014-06-03 00:34:01 +00:00			`var _holder = new Map().entries();`
Optimize Map/Set.prototype.forEach Instead of using an iterator result object and an entries array (for Map) we introduce a new runtime function that uses an array as an out param. On the Map ForEach perf test this leads to a 2.5x performance improvement. On the overall Map and Set tests this leads to a 18% and 13% improvement respectively. BUG=None LOG=Y R=danno@chromium.org Review URL: https://codereview.chromium.org/355663002 Patch from Erik Arvidsson <arv@chromium.org>. git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22027 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 2014-06-26 00:40:45 +00:00			`var _value_array = new Array();`
			`%MapIteratorNext(_holder, _value_array);`