ladybird/Libraries/LibJS/Runtime/Exception.cpp

/*
 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 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 HOLDER 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 <AK/String.h>
#include <LibJS/AST.h>
#include <LibJS/Runtime/Exception.h>
#include <LibJS/Runtime/VM.h>

namespace JS {

Exception::Exception(Value value)
    : m_value(value)
{
    auto& call_stack = vm().call_stack();
    for (ssize_t i = call_stack.size() - 1; i >= 0; --i) {
        String function_name = call_stack[i]->function_name;
        if (function_name.is_empty())
            function_name = "<anonymous>";
        m_trace.append(function_name);
    }

    auto& node_stack = vm().node_stack();
    for (ssize_t i = node_stack.size() - 1; i >= 0; --i) {
        auto* node = node_stack[i];
        ASSERT(node);
        m_source_ranges.append(node->source_range());
    }
}

Exception::~Exception()
{
}

void Exception::visit_edges(Visitor& visitor)
{
    Cell::visit_edges(visitor);
    visitor.visit(m_value);
}

}