test_envChain_subscript_in_JSM.js

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/* 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 JSM described in

// js/src/vm/EnvironmentObject.h.

add_task(async function() {

  const { envs } = ChromeUtils.import("resource://test/envChain_subscript.jsm");

  Assert.equal(envs.length, 6);

  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, "NonSyntacticVariablesObject");

  Assert.equal(env.qualified, false);

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

  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, "*BackstagePass*");

  Assert.equal(env.qualified, false);

  Assert.equal(env.unqualified, false);

  Assert.equal(env.lexical, false);

  Assert.equal(env.prop, false);

});