blob: 19194e1ae592e4f0087b8acfe7d3544c502e859e [file] [log] [blame]
/*
* Copyright (C) 2014-2018 Apple Inc. All rights reserved.
* Copyright (c) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ScriptArguments.h"
#include "CatchScope.h"
#include "JSCInlines.h"
#include "ProxyObject.h"
#include "StrongInlines.h"
namespace Inspector {
Ref<ScriptArguments> ScriptArguments::create(JSC::ExecState& state, Vector<JSC::Strong<JSC::Unknown>>&& arguments)
{
return adoptRef(*new ScriptArguments(state, WTFMove(arguments)));
}
ScriptArguments::ScriptArguments(JSC::ExecState& state, Vector<JSC::Strong<JSC::Unknown>>&& arguments)
: m_globalObject(state.vm(), state.lexicalGlobalObject())
, m_arguments(WTFMove(arguments))
{
}
ScriptArguments::~ScriptArguments() = default;
JSC::JSValue ScriptArguments::argumentAt(size_t index) const
{
ASSERT(m_arguments.size() > index);
return m_arguments[index].get();
}
JSC::ExecState* ScriptArguments::globalState() const
{
if (m_globalObject)
return const_cast<JSC::JSGlobalObject*>(m_globalObject.get())->globalExec();
return nullptr;
}
bool ScriptArguments::getFirstArgumentAsString(String& result)
{
if (!argumentCount())
return false;
auto* state = globalState();
if (!state) {
ASSERT_NOT_REACHED();
return false;
}
auto value = argumentAt(0);
if (JSC::jsDynamicCast<JSC::ProxyObject*>(state->vm(), value)) {
result = "[object Proxy]"_s;
return true;
}
auto scope = DECLARE_CATCH_SCOPE(state->vm());
result = value.toWTFString(state);
scope.clearException();
return true;
}
bool ScriptArguments::isEqual(const ScriptArguments& other) const
{
auto size = m_arguments.size();
if (size != other.m_arguments.size())
return false;
if (!size)
return true;
auto* state = globalState();
if (!state)
return false;
for (size_t i = 0; i < size; ++i) {
auto a = m_arguments[i].get();
auto b = other.m_arguments[i].get();
if (!a || !b) {
if (a != b)
return false;
} else {
auto scope = DECLARE_CATCH_SCOPE(state->vm());
bool result = JSC::JSValue::strictEqual(state, a, b);
scope.clearException();
if (!result)
return false;
}
}
return true;
}
} // namespace Inspector