ladybird/Libraries/LibJS/Console.cpp

/*
 * Copyright (c) 2020, Emanuele Torre <torreemanuele6@gmail.com>
 * Copyright (c) 2020, Linus Groh <mail@linusgroh.de>
 * 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 <AK/StringBuilder.h>
#include <LibJS/Console.h>
#include <LibJS/Interpreter.h>

namespace JS {

Console::Console(Interpreter& interpreter)
    : m_interpreter(interpreter)
{
}

void Console::add_message(ConsoleMessageKind kind, String text)
{
    ConsoleMessage message = { kind, text };
    m_messages.append(message);

    if (on_new_message)
        on_new_message(message);
}

void Console::debug(String text)
{
    add_message(ConsoleMessageKind::Debug, text);
}

void Console::error(String text)
{
    add_message(ConsoleMessageKind::Error, text);
}

void Console::info(String text)
{
    add_message(ConsoleMessageKind::Info, text);
}

void Console::log(String text)
{
    add_message(ConsoleMessageKind::Log, text);
}

void Console::warn(String text)
{
    add_message(ConsoleMessageKind::Warn, text);
}

void Console::clear()
{
    m_messages.clear();
    add_message(ConsoleMessageKind::Clear, {});
}

void Console::trace(String title)
{
    StringBuilder message_text;
    message_text.append(title);

    auto call_stack = m_interpreter.call_stack();
    // -2 to skip the console.trace() call frame
    for (ssize_t i = call_stack.size() - 2; i >= 0; --i) {
        auto function_name = call_stack[i].function_name;
        message_text.append("\n\t");
        if (String(function_name).is_empty())
            function_name = "<anonymous>";
        message_text.append(function_name);
    }

    add_message(ConsoleMessageKind::Trace, message_text.build());
}

unsigned Console::count(String label)
{
    auto counter_value = m_counters.get(label);
    if (!counter_value.has_value()) {
        add_message(ConsoleMessageKind::Count, String::format("%s: 1", label.characters()));
        m_counters.set(label, 1);
        return 1;
    }

    auto new_counter_value = counter_value.value() + 1;
    add_message(ConsoleMessageKind::Count, String::format("%s: %u", label.characters(), new_counter_value));
    m_counters.set(label, new_counter_value);
    return new_counter_value;
}

bool Console::count_reset(String label)
{
    if (!m_counters.contains(label))
        return false;

    m_counters.remove(label);
    add_message(ConsoleMessageKind::Count, String::format("%s: 0", label.characters()));
    return true;
}

}