The Tor Browser: js/src/jsapi-tests/testEnclosingFunction.cpp@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * vim: set ts=8 sts=4 et sw=4 tw=99:

     3  *

     4  * Test script cloning.

     5  */

     6 /* This Source Code Form is subject to the terms of the Mozilla Public

     7  * License, v. 2.0. If a copy of the MPL was not distributed with this

     8  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

    10 #include "jsfriendapi.h"

    12 #include "js/OldDebugAPI.h"

    13 #include "jsapi-tests/tests.h"

    15 using namespace js;

    17 static JSScript *foundScript = nullptr;

    19 static bool

    20 CheckEnclosing(JSContext *cx, unsigned argc, Value *vp)

    21 {

    22     CallArgs args = CallArgsFromVp(argc, vp);

    24     foundScript = js::GetOutermostEnclosingFunctionOfScriptedCaller(cx);

    26     args.rval().set(UndefinedValue());

    27     return true;

    28 }

    30 BEGIN_TEST(test_enclosingFunction)

    31 {

    32     CHECK(JS_DefineFunction(cx, global, "checkEnclosing", CheckEnclosing, 0, 0));

    34     EXEC("checkEnclosing()");

    35     CHECK(foundScript == nullptr);

    37     RootedFunction fun(cx);

    39     JS::CompileOptions options(cx);

    40     options.setFileAndLine(__FILE__, __LINE__);

    42     const char s1chars[] = "checkEnclosing()";

    43     fun = JS_CompileFunction(cx, global, "s1", 0, nullptr, s1chars,

    44                              strlen(s1chars), options);

    45     CHECK(fun);

    46     EXEC("s1()");

    47     CHECK(foundScript == JS_GetFunctionScript(cx, fun));

    49     const char s2chars[] = "return function() { checkEnclosing() }";

    50     fun = JS_CompileFunction(cx, global, "s2", 0, nullptr, s2chars,

    51                              strlen(s2chars), options);

    52     CHECK(fun);

    53     EXEC("s2()()");

    54     CHECK(foundScript == JS_GetFunctionScript(cx, fun));

    56     const char s3chars[] = "return function() { let (x) { function g() { checkEnclosing() } return g() } }";

    57     fun = JS_CompileFunction(cx, global, "s3", 0, nullptr, s3chars,

    58                              strlen(s3chars), options);

    59     CHECK(fun);

    60     EXEC("s3()()");

    61     CHECK(foundScript == JS_GetFunctionScript(cx, fun));

    63     return true;

    64 }

    65 END_TEST(test_enclosingFunction)

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