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js/src/jsapi-tests/testTrap.cpp@b8a032363ba2 (annotated)

js/src/jsapi-tests/testTrap.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 "js/OldDebugAPI.h"
michael@0	9	#include "jsapi-tests/tests.h"
michael@0	10
michael@0	11	static int emptyTrapCallCount = 0;
michael@0	12
michael@0	13	static JSTrapStatus
michael@0	14	EmptyTrapHandler(JSContext *cx, JSScript *script, jsbytecode *pc, jsval *rval,
michael@0	15	jsval closureArg)
michael@0	16	{
michael@0	17	JS::RootedValue closure(cx, closureArg);
michael@0	18	JS_GC(JS_GetRuntime(cx));
michael@0	19	if (JSVAL_IS_STRING(closure))
michael@0	20	++emptyTrapCallCount;
michael@0	21	return JSTRAP_CONTINUE;
michael@0	22	}
michael@0	23
michael@0	24	BEGIN_TEST(testTrap_gc)
michael@0	25	{
michael@0	26	static const char source[] =
michael@0	27	"var i = 0;\n"
michael@0	28	"var sum = 0;\n"
michael@0	29	"while (i < 10) {\n"
michael@0	30	" sum += i;\n"
michael@0	31	" ++i;\n"
michael@0	32	"}\n"
michael@0	33	"({ result: sum });\n"
michael@0	34	;
michael@0	35
michael@0	36	// compile
michael@0	37	JS::CompileOptions options(cx);
michael@0	38	options.setFileAndLine(__FILE__, 1);
michael@0	39	JS::RootedScript script(cx, JS_CompileScript(cx, global, source,
michael@0	40	strlen(source), options));
michael@0	41	CHECK(script);
michael@0	42
michael@0	43	// execute
michael@0	44	JS::RootedValue v2(cx);
michael@0	45	CHECK(JS_ExecuteScript(cx, global, script, &v2));
michael@0	46	CHECK(v2.isObject());
michael@0	47	CHECK_EQUAL(emptyTrapCallCount, 0);
michael@0	48
michael@0	49	// Enable debug mode
michael@0	50	CHECK(JS_SetDebugMode(cx, true));
michael@0	51
michael@0	52	static const char trapClosureText[] = "some trap closure";
michael@0	53
michael@0	54	// scope JSScript usage to make sure that it is not used after
michael@0	55	// JS_ExecuteScript. This way we avoid using Anchor.
michael@0	56	JS::RootedString trapClosure(cx);
michael@0	57	{
michael@0	58	jsbytecode *line2 = JS_LineNumberToPC(cx, script, 1);
michael@0	59	CHECK(line2);
michael@0	60
michael@0	61	jsbytecode *line6 = JS_LineNumberToPC(cx, script, 5);
michael@0	62	CHECK(line2);
michael@0	63
michael@0	64	trapClosure = JS_NewStringCopyZ(cx, trapClosureText);
michael@0	65	CHECK(trapClosure);
michael@0	66	JS::RootedValue closureValue(cx, JS::StringValue(trapClosure));
michael@0	67	JS_SetTrap(cx, script, line2, EmptyTrapHandler, closureValue);
michael@0	68	JS_SetTrap(cx, script, line6, EmptyTrapHandler, closureValue);
michael@0	69
michael@0	70	JS_GC(rt);
michael@0	71
michael@0	72	CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));
michael@0	73	}
michael@0	74
michael@0	75	// execute
michael@0	76	CHECK(JS_ExecuteScript(cx, global, script, &v2));
michael@0	77	CHECK_EQUAL(emptyTrapCallCount, 11);
michael@0	78
michael@0	79	JS_GC(rt);
michael@0	80
michael@0	81	CHECK(JS_FlatStringEqualsAscii(JS_ASSERT_STRING_IS_FLAT(trapClosure), trapClosureText));
michael@0	82
michael@0	83	return true;
michael@0	84	}
michael@0	85	END_TEST(testTrap_gc)
michael@0	86