diff options
Diffstat (limited to 'js/xpconnect/tests/chrome/test_envChain_event_handler.html')
| -rw-r--r-- | js/xpconnect/tests/chrome/test_envChain_event_handler.html | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/js/xpconnect/tests/chrome/test_envChain_event_handler.html b/js/xpconnect/tests/chrome/test_envChain_event_handler.html new file mode 100644 index 0000000000..f492e11512 --- /dev/null +++ b/js/xpconnect/tests/chrome/test_envChain_event_handler.html @@ -0,0 +1,137 @@ +<!DOCTYPE HTML> +<html> +<!-- +https://bugzilla.mozilla.org/show_bug.cgi?id=1782450 +--> +<head> + <meta charset="utf-8"> + <title>Test for Bug 1782450</title> + <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="chrome://global/skin"/> + <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/> + <script type="application/javascript"> +"use strict"; + +SimpleTest.waitForExplicitFinish(); + +// Verify the environment chain for DOM event handlers described in +// js/src/vm/EnvironmentObject.h. + +let count = 0; +function check(envs, hasEval) { + is(envs.length, hasEval ? 8 : 6); + + let i = 0, env; + + if (hasEval) { + env = envs[i]; i++; + is(env.type, "BlockLexicalEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, true, "lexical must live in the function lexical env"); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, false); + + env = envs[i]; i++; + is(env.type, "CallObject"); + is(env.qualified, true, "qualified var live in the function call object"); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, false); + } else { + // qualified var and lexical live in function's frame. + } + + env = envs[i]; i++; + is(env.type, "NonSyntacticLexicalEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, false); + + env = envs[i]; i++; + is(env.type, "WithEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, true, "this property must live in the with env for button"); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, true, "button property must live in the with env for button"); + + env = envs[i]; i++; + is(env.type, "WithEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, true, "form property must live in the with env for form"); + is(env.document_prop, false); + is(env.button_prop, false); + + env = envs[i]; i++; + is(env.type, "WithEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, true, "document property must live in the with env for document"); + is(env.button_prop, false); + + env = envs[i]; i++; + is(env.type, "GlobalLexicalEnvironmentObject"); + is(env.qualified, false); + is(env.unqualified, false); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, false); + + env = envs[i]; i++; + is(env.type, "*global*"); + is(env.qualified, false); + is(env.unqualified, true, "unqualified name must live in the global"); + is(env.lexical, false); + is(env.prop, false); + is(env.form_prop, false); + is(env.document_prop, false); + is(env.button_prop, false); + + count++; + if (count == 2) { + SimpleTest.finish(); + } +} + </script> +</head> +<body> +<form id="form"> +<button id="button_optimized" onclick="event.preventDefault(); var qualified = 10; unqualified = 20; let lexical = 30; this.prop = 40; const funcs = Cu.getJSTestingFunctions(); const envs = []; let env = funcs.getInnerMostEnvironmentObject(); while (env) { envs.push({ type: funcs.getEnvironmentObjectType(env) || '*global*', qualified: !!Object.getOwnPropertyDescriptor(env, 'qualified'), unqualified: !!Object.getOwnPropertyDescriptor(env, 'unqualified'), lexical: !!Object.getOwnPropertyDescriptor(env, 'lexical'), prop: !!Object.getOwnPropertyDescriptor(env, 'prop'), document_prop: !!Object.getOwnPropertyDescriptor(env, 'document_prop'), form_prop: !!Object.getOwnPropertyDescriptor(env, 'form_prop'), button_prop: !!Object.getOwnPropertyDescriptor(env, 'button_prop'), }); env = funcs.getEnclosingEnvironmentObject(env); } check(envs, false); return false;">Click Me!</button> +<!-- Put direct eval to de-optimize function scope --> +<button id="button_unoptimized" onclick="event.preventDefault(); eval(''); var qualified = 10; unqualified = 20; let lexical = 30; this.prop = 40; const funcs = Cu.getJSTestingFunctions(); const envs = []; let env = funcs.getInnerMostEnvironmentObject(); while (env) { envs.push({ type: funcs.getEnvironmentObjectType(env) || '*global*', qualified: !!Object.getOwnPropertyDescriptor(env, 'qualified'), unqualified: !!Object.getOwnPropertyDescriptor(env, 'unqualified'), lexical: !!Object.getOwnPropertyDescriptor(env, 'lexical'), prop: !!Object.getOwnPropertyDescriptor(env, 'prop'), document_prop: !!Object.getOwnPropertyDescriptor(env, 'document_prop'), form_prop: !!Object.getOwnPropertyDescriptor(env, 'form_prop'), button_prop: !!Object.getOwnPropertyDescriptor(env, 'button_prop'), }); env = funcs.getEnclosingEnvironmentObject(env); } check(envs, true);">Click Me!</button> +</form> +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1782450">Mozilla Bug 1782450</a> +<script type="application/javascript"> +"use strict"; +document.document_prop = 50; +const form = document.getElementById("form"); +form.form_prop = 50; +const button_unoptimized = document.getElementById("button_unoptimized"); +button_unoptimized.button_prop = 60; +button_unoptimized.click(); +const button_optimized = document.getElementById("button_optimized"); +button_optimized.button_prop = 60; +button_optimized.click(); +</script> +</body> +</html> |