test_envChain_subscript_in_frameScript.js

mozilla-central/js/xpconnect/tests/unit/test_envChain_subscript_in_frameScript.js (file symbol)

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Test Info:

Manifest: js/xpconnect/tests/unit/xpcshell.toml

/* 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 subscripts in frame script 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_with_target() {

  const page = await XPCShellContentUtils.loadContentPage("about:blank", {

    remote: true,

});

  const envsPromise = new Promise(resolve => {

    Services.mm.addMessageListener("unique-with-target-envs-result", msg => {

      resolve(msg.data);

});

});

  const runInUniqueScope = true;

  const runInGlobalScope = !runInUniqueScope;

  Services.mm.loadFrameScript(`data:,

const target = {};

Services.scriptloader.loadSubScript(\`data:,

var unique_target_qualified = 10;

unique_target_unqualified = 20;

let unique_target_lexical = 30;

this.unique_target_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_target_qualified"),

    unqualified: !!Object.getOwnPropertyDescriptor(env, "unique_target_unqualified"),

    lexical: !!Object.getOwnPropertyDescriptor(env, "unique_target_lexical"),

    prop: !!Object.getOwnPropertyDescriptor(env, "unique_target_prop"),

});

  env = funcs.getEnclosingEnvironmentObject(env);

this.ENVS = envs;

\`, target);

const envs = target.ENVS;

sendSyncMessage("unique-with-target-envs-result", envs);

`, false, runInGlobalScope);

  const envs = await envsPromise;

  Assert.equal(envs.length, 7);

  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, "NonSyntacticLexicalEnvironmentObject");

  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, "WithEnvironmentObject");

  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, "NonSyntacticVariablesObject");

  Assert.equal(env.qualified, false);

  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);

  await page.close();

});

add_task(async function non_unique_scope_with_target() {

  const page = await XPCShellContentUtils.loadContentPage("about:blank", {

    remote: true,

});

  const envsPromise = new Promise(resolve => {

    Services.mm.addMessageListener("non-unique-with-target-envs-result", msg => {

      resolve(msg.data);

});

});

  const runInUniqueScope = false;

  const runInGlobalScope = !runInUniqueScope;

  Services.mm.loadFrameScript(`data:,

const target = {};

Services.scriptloader.loadSubScript(\`data:,

var non_unique_target_qualified = 10;

non_unique_target_unqualified = 20;

let non_unique_target_lexical = 30;

this.non_unique_target_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_target_qualified"),

    unqualified: !!Object.getOwnPropertyDescriptor(env, "non_unique_target_unqualified"),

    lexical: !!Object.getOwnPropertyDescriptor(env, "non_unique_target_lexical"),

    prop: !!Object.getOwnPropertyDescriptor(env, "non_unique_target_prop"),

});

  env = funcs.getEnclosingEnvironmentObject(env);

this.ENVS = envs;

\`, target);

const envs = target.ENVS;

sendSyncMessage("non-unique-with-target-envs-result", envs);

`, false, runInGlobalScope);

  const envs = await envsPromise;

  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 var must live in the system global");

  Assert.equal(env.lexical, false);

  Assert.equal(env.prop, false);

  await page.close();

});

add_task(async function unique_scope_no_target() {

  const page = await XPCShellContentUtils.loadContentPage("about:blank", {

    remote: true,

});

  const envsPromise = new Promise(resolve => {

    Services.mm.addMessageListener("unique-no-target-envs-result", msg => {

      resolve(msg.data);

});

});

  const runInUniqueScope = true;

  const runInGlobalScope = !runInUniqueScope;

  Services.mm.loadFrameScript(`data:,

Services.scriptloader.loadSubScript(\`data:,

var unique_no_target_qualified = 10;

unique_no_target_unqualified = 20;

let unique_no_target_lexical = 30;

this.unique_no_target_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_no_target_qualified"),

    unqualified: !!Object.getOwnPropertyDescriptor(env, "unique_no_target_unqualified"),

    lexical: !!Object.getOwnPropertyDescriptor(env, "unique_no_target_lexical"),

    prop: !!Object.getOwnPropertyDescriptor(env, "unique_no_target_prop"),

});

  env = funcs.getEnclosingEnvironmentObject(env);

globalThis.ENVS = envs;

\`);

const outerEnvs = globalThis.ENVS;

sendSyncMessage("unique-no-target-envs-result", outerEnvs);

`, false, runInGlobalScope);

  const envs = await envsPromise;

  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);

  await page.close();

});

add_task(async function non_unique_scope_no_target() {

  const page = await XPCShellContentUtils.loadContentPage("about:blank", {

    remote: true,

});

  const envsPromise = new Promise(resolve => {

    Services.mm.addMessageListener("non-unique-no-target-envs-result", msg => {

      resolve(msg.data);

});

});

  const runInUniqueScope = false;

  const runInGlobalScope = !runInUniqueScope;

  Services.mm.loadFrameScript(`data:,

Services.scriptloader.loadSubScript(\`data:,

var non_unique_no_target_qualified = 10;

non_unique_no_target_unqualified = 20;

let non_unique_no_target_lexical = 30;

this.non_unique_no_target_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_no_target_qualified"),

    unqualified: !!Object.getOwnPropertyDescriptor(env, "non_unique_no_target_unqualified"),

    lexical: !!Object.getOwnPropertyDescriptor(env, "non_unique_no_target_lexical"),

    prop: !!Object.getOwnPropertyDescriptor(env, "non_unique_no_target_prop"),

});

  env = funcs.getEnclosingEnvironmentObject(env);

globalThis.ENVS = envs;

\`);

const outerEnvs = globalThis.ENVS;

sendSyncMessage("non-unique-no-target-envs-result", outerEnvs);

`, false, runInGlobalScope);

  const envs = await envsPromise;

  Assert.equal(envs.length, 2);

  let i = 0, env;

  env = envs[i]; i++;

  Assert.equal(env.type, "GlobalLexicalEnvironmentObject");

  Assert.equal(env.qualified, false);

  Assert.equal(env.unqualified, false);

  Assert.equal(env.lexical, true, "lexical must live in the global lexical");

  Assert.equal(env.prop, false);

  env = envs[i]; i++;

  Assert.equal(env.type, "*SystemGlobal*");

  Assert.equal(env.qualified, true, "qualified var must live in the with system global");

  Assert.equal(env.unqualified, true, "unqualified name must live in the system global");

  Assert.equal(env.lexical, false);

  Assert.equal(env.prop, true, "this property must live in the with system global");

  await page.close();

});