1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jsapi-tests/testTrap.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,86 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "js/OldDebugAPI.h"
1.12 +#include "jsapi-tests/tests.h"
1.13 +
1.14 +static int emptyTrapCallCount = 0;
1.15 +
1.16 +static JSTrapStatus
1.17 +EmptyTrapHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,
1.18 + jsval closureArg)
1.19 +{
1.20 + JS::RootedValue closure(cx, closureArg);
1.21 + JS_GC(JS_GetRuntime(cx));
1.22 + if (JSVAL_IS_STRING(closure))
1.23 + ++emptyTrapCallCount;
1.24 + return JSTRAP_CONTINUE;
1.25 +}
1.26 +
1.27 +BEGIN_TEST(testTrap_gc)
1.28 +{
1.29 + static const char source[] =
1.30 +"var i = 0;\n"
1.31 +"var sum = 0;\n"
1.32 +"while (i < 10) {\n"
1.33 +" sum += i;\n"
1.34 +" ++i;\n"
1.35 +"}\n"
1.36 +"({ result: sum });\n"
1.37 + ;
1.38 +
1.39 + // compile
1.40 + JS::CompileOptions options(cx);
1.41 + options.setFileAndLine(__FILE__, 1);
1.42 + JS::RootedScript script(cx, JS_CompileScript(cx, global, source,
1.43 + strlen(source), options));
1.44 + CHECK(script);
1.45 +
1.46 + // execute
1.47 + JS::RootedValue v2(cx);
1.48 + CHECK(JS_ExecuteScript(cx, global, script, &v2));
1.49 + CHECK(v2.isObject());
1.50 + CHECK_EQUAL(emptyTrapCallCount, 0);
1.51 +
1.52 + // Enable debug mode
1.53 + CHECK(JS_SetDebugMode(cx, true));
1.54 +
1.55 + static const char trapClosureText[] = "some trap closure";
1.56 +
1.57 + // scope JSScript usage to make sure that it is not used after
1.58 + // JS_ExecuteScript. This way we avoid using Anchor.
1.59 + JS::RootedString trapClosure(cx);
1.60 + {
1.61 + jsbytecode *line2 = JS_LineNumberToPC(cx, script, 1);
1.62 + CHECK(line2);
1.63 +
1.64 + jsbytecode *line6 = JS_LineNumberToPC(cx, script, 5);
1.65 + CHECK(line2);
1.66 +
1.67 + trapClosure = JS_NewStringCopyZ(cx, trapClosureText);
1.68 + CHECK(trapClosure);
1.69 + JS::RootedValue closureValue(cx, JS::StringValue(trapClosure));
1.70 + JS_SetTrap(cx, script, line2, EmptyTrapHandler, closureValue);
1.71 + JS_SetTrap(cx, script, line6, EmptyTrapHandler, closureValue);
1.72 +
1.73 + JS_GC(rt);
1.74 +
1.75 + CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));
1.76 + }
1.77 +
1.78 + // execute
1.79 + CHECK(JS_ExecuteScript(cx, global, script, &v2));
1.80 + CHECK_EQUAL(emptyTrapCallCount, 11);
1.81 +
1.82 + JS_GC(rt);
1.83 +
1.84 + CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));
1.85 +
1.86 + return true;
1.87 +}
1.88 +END_TEST(testTrap_gc)
1.89 +
