/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
// Verify the environment chain for frame scripts described in
// js/src/vm/EnvironmentObject.h.
const { XPCShellContentUtils } = ChromeUtils.importESModule(
"resource://testing-common/XPCShellContentUtils.sys.mjs"
);
XPCShellContentUtils.init(
this);
add_task(async
function unique_scope() {
const page = await XPCShellContentUtils.loadContentPage(
"about:blank", {
remote:
true,
});
const envsPromise =
new Promise(resolve => {
Services.mm.addMessageListener(
"unique-envs-result", msg => {
resolve(msg.data);
});
});
const sharePromise =
new Promise(resolve => {
Services.mm.addMessageListener(
"unique-share-result", msg => {
resolve(msg.data);
});
});
const runInUniqueScope =
true;
const runInGlobalScope = !runInUniqueScope;
Services.mm.loadFrameScript(`data:,
var unique_qualified = 10;
unique_unqualified = 20;
let unique_lexical = 30;
this.unique_prop = 40;
const funcs = Cu.getJSTestingFunctions();
const envs = [];
let env = funcs.getInnerMostEnvironmentObject();
while (env) {
envs.push({
type: funcs.getEnvironmentObjectType(env) ||
"*SystemGlobal*",
qualified: !!Object.getOwnPropertyDescriptor(env,
"unique_qualified"),
unqualified: !!Object.getOwnPropertyDescriptor(env,
"unique_unqualified"),
lexical: !!Object.getOwnPropertyDescriptor(env,
"unique_lexical"),
prop: !!Object.getOwnPropertyDescriptor(env,
"unique_prop"),
});
env = funcs.getEnclosingEnvironmentObject(env);
}
sendSyncMessage(
"unique-envs-result", envs);
`,
false, runInGlobalScope);
Services.mm.loadFrameScript(`data:,
sendSyncMessage(
"unique-share-result", {
unique_qualified:
typeof unique_qualified,
unique_unqualified:
typeof unique_unqualified,
unique_lexical:
typeof unique_lexical,
unique_prop:
this.unique_prop,
});
`,
false, runInGlobalScope);
const envs = await envsPromise;
const share = await sharePromise;
Assert.equal(envs.length, 5);
let i = 0, env;
env = envs[i]; i++;
Assert.equal(env.type,
"NonSyntacticLexicalEnvironmentObject");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
true,
"lexical must live in the NSLEO");
Assert.equal(env.prop,
false);
env = envs[i]; i++;
Assert.equal(env.type,
"WithEnvironmentObject");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
true,
"this property must live in the with env");
env = envs[i]; i++;
Assert.equal(env.type,
"NonSyntacticVariablesObject");
Assert.equal(env.qualified,
true,
"qualified var must live in the NSVO");
Assert.equal(env.unqualified,
true,
"unqualified var must live in the NSVO");
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
false);
env = envs[i]; i++;
Assert.equal(env.type,
"GlobalLexicalEnvironmentObject");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
false);
env = envs[i]; i++;
Assert.equal(env.type,
"*SystemGlobal*");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
false);
Assert.equal(share.unique_qualified,
"undefined",
"qualified var must not be shared");
Assert.equal(share.unique_unqualified,
"undefined",
"unqualified name must not be shared");
Assert.equal(share.unique_lexical,
"undefined",
"lexical must not be shared");
Assert.equal(share.unique_prop, 40,
"this property must be shared");
await page.close();
});
add_task(async
function non_unique_scope() {
const page = await XPCShellContentUtils.loadContentPage(
"about:blank", {
remote:
true,
});
const envsPromise =
new Promise(resolve => {
Services.mm.addMessageListener(
"non-unique-envs-result", msg => {
resolve(msg.data);
});
});
const sharePromise =
new Promise(resolve => {
Services.mm.addMessageListener(
"non-unique-share-result", msg => {
resolve(msg.data);
});
});
const runInUniqueScope =
false;
const runInGlobalScope = !runInUniqueScope;
Services.mm.loadFrameScript(`data:,
var non_unique_qualified = 10;
non_unique_unqualified = 20;
let non_unique_lexical = 30;
this.non_unique_prop = 40;
const funcs = Cu.getJSTestingFunctions();
const envs = [];
let env = funcs.getInnerMostEnvironmentObject();
while (env) {
envs.push({
type: funcs.getEnvironmentObjectType(env) ||
"*SystemGlobal*",
qualified: !!Object.getOwnPropertyDescriptor(env,
"non_unique_qualified"),
unqualified: !!Object.getOwnPropertyDescriptor(env,
"non_unique_unqualified"),
lexical: !!Object.getOwnPropertyDescriptor(env,
"non_unique_lexical"),
prop: !!Object.getOwnPropertyDescriptor(env,
"non_unique_prop"),
});
env = funcs.getEnclosingEnvironmentObject(env);
}
sendSyncMessage(
"non-unique-envs-result", envs);
`,
false, runInGlobalScope);
Services.mm.loadFrameScript(`data:,
sendSyncMessage(
"non-unique-share-result", {
non_unique_qualified,
non_unique_unqualified,
non_unique_lexical,
non_unique_prop,
});
`,
false, runInGlobalScope);
const envs = await envsPromise;
const share = await sharePromise;
Assert.equal(envs.length, 4);
let i = 0, env;
env = envs[i]; i++;
Assert.equal(env.type,
"NonSyntacticLexicalEnvironmentObject");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
true,
"lexical must live in the NSLEO");
Assert.equal(env.prop,
false);
env = envs[i]; i++;
Assert.equal(env.type,
"WithEnvironmentObject");
Assert.equal(env.qualified,
true,
"qualified var must live in the with env");
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
true,
"this property must live in the with env");
env = envs[i]; i++;
Assert.equal(env.type,
"GlobalLexicalEnvironmentObject");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
false);
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
false);
env = envs[i]; i++;
Assert.equal(env.type,
"*SystemGlobal*");
Assert.equal(env.qualified,
false);
Assert.equal(env.unqualified,
true,
"unqualified name must live in the system global");
Assert.equal(env.lexical,
false);
Assert.equal(env.prop,
false);
Assert.equal(share.non_unique_qualified, 10,
"qualified var must be shared");
Assert.equal(share.non_unique_unqualified, 20,
"unqualified name must be shared");
Assert.equal(share.non_unique_lexical, 30,
"lexical must be shared");
Assert.equal(share.non_unique_prop, 40,
"this property must be shared");
await page.close();
});