sra@google.com
f627889577
Fixes issue 2835. dart:html now partakes in the logic that wraps functions that smell like call-backs in the isolate-management code. Support 2-arg callbacks. Delete special (and buggy) handling of global variables in 'native' libraries. We don't have any real 'native' global variables. Review URL: https://chromiumcodereview.appspot.com//10264021 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@7174 260f80e4-7a28-3924-810f-c04153c831b5
79 lines
2.7 KiB
JavaScript
79 lines
2.7 KiB
JavaScript
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Top-level native code needed by the frog compiler
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var $globalThis = this;
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var $globals = null;
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var $globalState = null;
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var $thisScriptUrl = null;
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var $isWorker = typeof ($globalThis['importScripts']) != 'undefined';
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var $supportsWorkers =
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$isWorker || ((typeof $globalThis['Worker']) != 'undefined');
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function $initGlobals(context) { context.isolateStatics = {}; }
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function $setGlobals(context) { $globals = context.isolateStatics; }
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// Wrap a 0-arg dom-callback to bind it with the current isolate:
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function $wrap_call$0(fn) { return fn && fn.wrap$call$0(); }
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Function.prototype.wrap$call$0 = function() {
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var isolateContext = $globalState.currentContext;
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var self = this;
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this.wrap$0 = function() {
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var res = isolateContext.eval(self);
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$globalState.topEventLoop.run();
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return res;
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};
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this.wrap$call$0 = function() { return this.wrap$0; };
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return this.wrap$0;
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};
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// Wrap a 1-arg dom-callback to bind it with the current isolate:
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function $wrap_call$1(fn) { return fn && fn.wrap$call$1(); }
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Function.prototype.wrap$call$1 = function() {
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var isolateContext = $globalState.currentContext;
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var self = this;
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this.wrap$1 = function(arg) {
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var res = isolateContext.eval(function() { return self(arg); });
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$globalState.topEventLoop.run();
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return res;
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};
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this.wrap$call$1 = function() { return this.wrap$1; };
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return this.wrap$1;
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};
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// Wrap a 2-arg dom-callback to bind it with the current isolate:
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function $wrap_call$2(fn) { return fn && fn.wrap$call$2(); }
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Function.prototype.wrap$call$2 = function() {
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var isolateContext = $globalState.currentContext;
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var self = this;
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this.wrap$2 = function(arg1, arg2) {
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var res = isolateContext.eval(function() { return self(arg1, arg2); });
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$globalState.topEventLoop.run();
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return res;
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};
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this.wrap$call$2 = function() { return this.wrap$2; };
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return this.wrap$2;
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};
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$thisScriptUrl = (function () {
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if (!$supportsWorkers || $isWorker) return (void 0);
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// TODO(5334778): Find a cross-platform non-brittle way of getting the
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// currently running script.
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var scripts = document.getElementsByTagName('script');
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// The scripts variable only contains the scripts that have already been
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// executed. The last one is the currently running script.
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var script = scripts[scripts.length - 1];
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var src = script && script.src;
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if (!src) {
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// TODO()
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src = "FIXME:5407062" + "_" + Math.random().toString();
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if (script) script.src = src;
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}
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return src;
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})();
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