1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* 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 described in
// js/src/vm/EnvironmentObject.h.
add_task(async function() {
const target = {};
Services.scriptloader.loadSubScript(`data:,
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"),
});
env = funcs.getEnclosingEnvironmentObject(env);
}
this.ENVS = envs;
`, target);
const envs = target.ENVS;
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, "*global*");
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);
Assert.equal(target.qualified, 10, "qualified var must be reflected to the target object");
Assert.equal(target.prop, 40, "this property must be reflected to the target object");
});
|
