js/src/jsapi-tests/testNewObject.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Thu, 22 Jan 2015 13:21:57 +0100
branch
TOR_BUG_9701
changeset 15
b8a032363ba2
permissions
-rw-r--r--

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

michael@0 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0 2 * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0 3 */
michael@0 4 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 5 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 7
michael@0 8 #include "jsapi-tests/tests.h"
michael@0 9
michael@0 10 static bool
michael@0 11 constructHook(JSContext *cx, unsigned argc, jsval *vp)
michael@0 12 {
michael@0 13 JS::CallArgs args = CallArgsFromVp(argc, vp);
michael@0 14
michael@0 15 // Check that arguments were passed properly from JS_New.
michael@0 16
michael@0 17 JS::RootedObject obj(cx, JS_NewObject(cx, js::Jsvalify(&JSObject::class_), JS::NullPtr(), JS::NullPtr()));
michael@0 18 if (!obj) {
michael@0 19 JS_ReportError(cx, "test failed, could not construct object");
michael@0 20 return false;
michael@0 21 }
michael@0 22 if (strcmp(JS_GetClass(obj)->name, "Object") != 0) {
michael@0 23 JS_ReportError(cx, "test failed, wrong class for 'this'");
michael@0 24 return false;
michael@0 25 }
michael@0 26 if (args.length() != 3) {
michael@0 27 JS_ReportError(cx, "test failed, argc == %d", args.length());
michael@0 28 return false;
michael@0 29 }
michael@0 30 if (!args[0].isInt32() || args[2].toInt32() != 2) {
michael@0 31 JS_ReportError(cx, "test failed, wrong value in args[2]");
michael@0 32 return false;
michael@0 33 }
michael@0 34 if (!args.isConstructing()) {
michael@0 35 JS_ReportError(cx, "test failed, not constructing");
michael@0 36 return false;
michael@0 37 }
michael@0 38
michael@0 39 // Perform a side-effect to indicate that this hook was actually called.
michael@0 40 JS::RootedValue value(cx, args[0]);
michael@0 41 JS::RootedObject callee(cx, &args.callee());
michael@0 42 if (!JS_SetElement(cx, callee, 0, value))
michael@0 43 return false;
michael@0 44
michael@0 45 args.rval().setObject(*obj);
michael@0 46
michael@0 47 // trash the argv, perversely
michael@0 48 args[0].setUndefined();
michael@0 49 args[1].setUndefined();
michael@0 50 args[2].setUndefined();
michael@0 51
michael@0 52 return true;
michael@0 53 }
michael@0 54
michael@0 55 BEGIN_TEST(testNewObject_1)
michael@0 56 {
michael@0 57 static const size_t N = 1000;
michael@0 58 JS::AutoValueVector argv(cx);
michael@0 59 CHECK(argv.resize(N));
michael@0 60
michael@0 61 JS::RootedValue v(cx);
michael@0 62 EVAL("Array", &v);
michael@0 63 JS::RootedObject Array(cx, JSVAL_TO_OBJECT(v));
michael@0 64
michael@0 65 // With no arguments.
michael@0 66 JS::RootedObject obj(cx, JS_New(cx, Array, JS::HandleValueArray::empty()));
michael@0 67 CHECK(obj);
michael@0 68 JS::RootedValue rt(cx, JS::ObjectValue(*obj));
michael@0 69 CHECK(JS_IsArrayObject(cx, obj));
michael@0 70 uint32_t len;
michael@0 71 CHECK(JS_GetArrayLength(cx, obj, &len));
michael@0 72 CHECK_EQUAL(len, 0);
michael@0 73
michael@0 74 // With one argument.
michael@0 75 argv[0].setInt32(4);
michael@0 76 obj = JS_New(cx, Array, JS::HandleValueArray::subarray(argv, 0, 1));
michael@0 77 CHECK(obj);
michael@0 78 rt = OBJECT_TO_JSVAL(obj);
michael@0 79 CHECK(JS_IsArrayObject(cx, obj));
michael@0 80 CHECK(JS_GetArrayLength(cx, obj, &len));
michael@0 81 CHECK_EQUAL(len, 4);
michael@0 82
michael@0 83 // With N arguments.
michael@0 84 for (size_t i = 0; i < N; i++)
michael@0 85 argv[i].setInt32(i);
michael@0 86 obj = JS_New(cx, Array, JS::HandleValueArray::subarray(argv, 0, N));
michael@0 87 CHECK(obj);
michael@0 88 rt = OBJECT_TO_JSVAL(obj);
michael@0 89 CHECK(JS_IsArrayObject(cx, obj));
michael@0 90 CHECK(JS_GetArrayLength(cx, obj, &len));
michael@0 91 CHECK_EQUAL(len, N);
michael@0 92 CHECK(JS_GetElement(cx, obj, N - 1, &v));
michael@0 93 CHECK_SAME(v, INT_TO_JSVAL(N - 1));
michael@0 94
michael@0 95 // With JSClass.construct.
michael@0 96 static const JSClass cls = {
michael@0 97 "testNewObject_1",
michael@0 98 0,
michael@0 99 JS_PropertyStub, JS_DeletePropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
michael@0 100 JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, nullptr,
michael@0 101 nullptr, nullptr, constructHook
michael@0 102 };
michael@0 103 JS::RootedObject ctor(cx, JS_NewObject(cx, &cls, JS::NullPtr(), JS::NullPtr()));
michael@0 104 CHECK(ctor);
michael@0 105 JS::RootedValue rt2(cx, OBJECT_TO_JSVAL(ctor));
michael@0 106 obj = JS_New(cx, ctor, JS::HandleValueArray::subarray(argv, 0, 3));
michael@0 107 CHECK(obj);
michael@0 108 CHECK(JS_GetElement(cx, ctor, 0, &v));
michael@0 109 CHECK_SAME(v, JSVAL_ZERO);
michael@0 110
michael@0 111 return true;
michael@0 112 }
michael@0 113 END_TEST(testNewObject_1)

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