The Tor Browser / file comparison
comparison: js/src/jsapi-tests/testConservativeGC.cpp
js/src/jsapi-tests/testConservativeGC.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:3bf526edd400 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #if !defined(JSGC_USE_EXACT_ROOTING) | |
| 6 | |
| 7 #include "jsobj.h" | |
| 8 | |
| 9 #include "jsapi-tests/tests.h" | |
| 10 #include "vm/String.h" | |
| 11 | |
| 12 BEGIN_TEST(testConservativeGC) | |
| 13 { | |
| 14 JS::RootedValue v2(cx); | |
| 15 EVAL("({foo: 'bar'});", &v2); | |
| 16 CHECK(v2.isObject()); | |
| 17 char objCopy[sizeof(JSObject)]; | |
| 18 js_memcpy(&objCopy, JSVAL_TO_OBJECT(v2), sizeof(JSObject)); | |
| 19 | |
| 20 JS::RootedValue v3(cx); | |
| 21 EVAL("String(Math.PI);", &v3); | |
| 22 CHECK(JSVAL_IS_STRING(v3)); | |
| 23 char strCopy[sizeof(JSString)]; | |
| 24 js_memcpy(&strCopy, JSVAL_TO_STRING(v3), sizeof(JSString)); | |
| 25 | |
| 26 JS::RootedValue tmp(cx); | |
| 27 EVAL("({foo2: 'bar2'});", &tmp); | |
| 28 CHECK(tmp.isObject()); | |
| 29 JS::RootedObject obj2(cx, JSVAL_TO_OBJECT(tmp)); | |
| 30 char obj2Copy[sizeof(JSObject)]; | |
| 31 js_memcpy(&obj2Copy, obj2, sizeof(JSObject)); | |
| 32 | |
| 33 EVAL("String(Math.sqrt(3));", &tmp); | |
| 34 CHECK(JSVAL_IS_STRING(tmp)); | |
| 35 JS::RootedString str2(cx, JSVAL_TO_STRING(tmp)); | |
| 36 char str2Copy[sizeof(JSString)]; | |
| 37 js_memcpy(&str2Copy, str2, sizeof(JSString)); | |
| 38 | |
| 39 tmp = JSVAL_NULL; | |
| 40 | |
| 41 JS_GC(rt); | |
| 42 | |
| 43 EVAL("var a = [];\n" | |
| 44 "for (var i = 0; i != 10000; ++i) {\n" | |
| 45 "a.push(i + 0.1, [1, 2], String(Math.sqrt(i)), {a: i});\n" | |
| 46 "}", &tmp); | |
| 47 | |
| 48 JS_GC(rt); | |
| 49 | |
| 50 checkObjectFields((JSObject *)objCopy, JSVAL_TO_OBJECT(v2)); | |
| 51 CHECK(!memcmp(strCopy, JSVAL_TO_STRING(v3), sizeof(strCopy))); | |
| 52 | |
| 53 checkObjectFields((JSObject *)obj2Copy, obj2); | |
| 54 CHECK(!memcmp(str2Copy, str2, sizeof(str2Copy))); | |
| 55 | |
| 56 return true; | |
| 57 } | |
| 58 | |
| 59 bool checkObjectFields(JSObject *savedCopy, JSObject *obj) | |
| 60 { | |
| 61 /* Ignore fields which are unstable across GCs. */ | |
| 62 CHECK(savedCopy->lastProperty() == obj->lastProperty()); | |
| 63 return true; | |
| 64 } | |
| 65 | |
| 66 END_TEST(testConservativeGC) | |
| 67 | |
| 68 BEGIN_TEST(testDerivedValues) | |
| 69 { | |
| 70 JSString *str = JS_NewStringCopyZ(cx, "once upon a midnight dreary"); | |
| 71 JS::Anchor<JSString *> str_anchor(str); | |
| 72 static const jschar expected[] = { 'o', 'n', 'c', 'e' }; | |
| 73 const jschar *ch = JS_GetStringCharsZ(cx, str); | |
| 74 str = nullptr; | |
| 75 | |
| 76 /* Do a lot of allocation and collection. */ | |
| 77 for (int i = 0; i < 3; i++) { | |
| 78 for (int j = 0; j < 1000; j++) | |
| 79 JS_NewStringCopyZ(cx, "as I pondered weak and weary"); | |
| 80 JS_GC(rt); | |
| 81 } | |
| 82 | |
| 83 CHECK(!memcmp(ch, expected, sizeof(expected))); | |
| 84 return true; | |
| 85 } | |
| 86 END_TEST(testDerivedValues) | |
| 87 | |
| 88 #endif /* !defined(JSGC_USE_EXACT_ROOTING) */ |
