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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* Test script cloning.
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "jsfriendapi.h"
#include "jsapi-tests/tests.h"
BEGIN_TEST(test_cloneScript)
{
JS::RootedObject A(cx, createGlobal());
JS::RootedObject B(cx, createGlobal());
CHECK(A);
CHECK(B);
const char* source =
"var i = 0;\n"
"var sum = 0;\n"
"while (i < 10) {\n"
" sum += i;\n"
" ++i;\n"
"}\n"
"(sum);\n";
JS::RootedObject obj(cx);
// compile for A
{
JSAutoCompartment a(cx, A);
JS::RootedFunction fun(cx);
JS::CompileOptions options(cx);
options.setFileAndLine(__FILE__, 1);
JS::AutoObjectVector emptyScopeChain(cx);
CHECK(JS::CompileFunction(cx, emptyScopeChain, options, "f", 0, nullptr,
source, strlen(source), &fun));
CHECK(obj = JS_GetFunctionObject(fun));
}
// clone into B
{
JSAutoCompartment b(cx, B);
CHECK(JS::CloneFunctionObject(cx, obj));
}
return true;
}
END_TEST(test_cloneScript)
struct Principals final : public JSPrincipals
{
public:
Principals()
{
refcount = 0;
}
bool write(JSContext* cx, JSStructuredCloneWriter* writer) override {
MOZ_ASSERT(false, "not imlemented");
return false;
}
};
class AutoDropPrincipals
{
JSContext* cx;
JSPrincipals* principals;
public:
AutoDropPrincipals(JSContext* cx, JSPrincipals* principals)
: cx(cx), principals(principals)
{
JS_HoldPrincipals(principals);
}
~AutoDropPrincipals()
{
JS_DropPrincipals(cx, principals);
}
};
static void
DestroyPrincipals(JSPrincipals* principals)
{
auto p = static_cast<Principals*>(principals);
delete p;
}
BEGIN_TEST(test_cloneScriptWithPrincipals)
{
JS_InitDestroyPrincipalsCallback(cx, DestroyPrincipals);
JSPrincipals* principalsA = new Principals();
AutoDropPrincipals dropA(cx, principalsA);
JSPrincipals* principalsB = new Principals();
AutoDropPrincipals dropB(cx, principalsB);
JS::RootedObject A(cx, createGlobal(principalsA));
JS::RootedObject B(cx, createGlobal(principalsB));
CHECK(A);
CHECK(B);
const char* argnames[] = { "arg" };
const char* source = "return function() { return arg; }";
JS::RootedObject obj(cx);
// Compile in A
{
JSAutoCompartment a(cx, A);
JS::CompileOptions options(cx);
options.setFileAndLine(__FILE__, 1);
JS::RootedFunction fun(cx);
JS::AutoObjectVector emptyScopeChain(cx);
JS::CompileFunction(cx, emptyScopeChain, options, "f",
mozilla::ArrayLength(argnames), argnames, source,
strlen(source), &fun);
CHECK(fun);
JSScript* script;
CHECK(script = JS_GetFunctionScript(cx, fun));
CHECK(JS_GetScriptPrincipals(script) == principalsA);
CHECK(obj = JS_GetFunctionObject(fun));
}
// Clone into B
{
JSAutoCompartment b(cx, B);
JS::RootedObject cloned(cx);
CHECK(cloned = JS::CloneFunctionObject(cx, obj));
JS::RootedFunction fun(cx);
JS::RootedValue clonedValue(cx, JS::ObjectValue(*cloned));
CHECK(fun = JS_ValueToFunction(cx, clonedValue));
JSScript* script;
CHECK(script = JS_GetFunctionScript(cx, fun));
CHECK(JS_GetScriptPrincipals(script) == principalsB);
JS::RootedValue v(cx);
JS::RootedValue arg(cx, JS::Int32Value(1));
CHECK(JS_CallFunctionValue(cx, B, clonedValue, JS::HandleValueArray(arg), &v));
CHECK(v.isObject());
JSObject* funobj = &v.toObject();
CHECK(JS_ObjectIsFunction(cx, funobj));
CHECK(fun = JS_ValueToFunction(cx, v));
CHECK(script = JS_GetFunctionScript(cx, fun));
CHECK(JS_GetScriptPrincipals(script) == principalsB);
}
return true;
}
END_TEST(test_cloneScriptWithPrincipals)
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