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https://github.com/RGBCube/serenity
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05748ed607
Using a Vector<Value> is unsafe as GC cannot see the stored values. This is then vended to outside users of ConsoleClient, e.g. LibWeb and WebContent, which is then outside of LibJS's control. An example issue is if the client stores it for later use and forgets to visit the stored values, meaning they can be destroyed at any time. We can save the client from this by vending a MarkedVector<Value> to them.
84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (c) 2022, Ben Abraham <ben.d.abraham@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Heap/MarkedVector.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibWeb/HTML/WorkerDebugConsoleClient.h>
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namespace Web::HTML {
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WorkerDebugConsoleClient::WorkerDebugConsoleClient(JS::Console& console)
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: ConsoleClient(console)
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{
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}
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void WorkerDebugConsoleClient::clear()
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{
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dbgln("\033[3J\033[H\033[2J");
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m_group_stack_depth = 0;
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fflush(stdout);
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}
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void WorkerDebugConsoleClient::end_group()
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{
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if (m_group_stack_depth > 0)
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m_group_stack_depth--;
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}
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// 2.3. Printer(logLevel, args[, options]), https://console.spec.whatwg.org/#printer
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JS::ThrowCompletionOr<JS::Value> WorkerDebugConsoleClient::printer(JS::Console::LogLevel log_level, PrinterArguments arguments)
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{
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String indent = String::repeated(" ", m_group_stack_depth);
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if (log_level == JS::Console::LogLevel::Trace) {
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auto trace = arguments.get<JS::Console::Trace>();
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StringBuilder builder;
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if (!trace.label.is_empty())
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builder.appendff("{}\033[36;1m{}\033[0m\n", indent, trace.label);
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for (auto& function_name : trace.stack)
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builder.appendff("{}-> {}\n", indent, function_name);
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dbgln("{}", builder.string_view());
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return JS::js_undefined();
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}
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if (log_level == JS::Console::LogLevel::Group || log_level == JS::Console::LogLevel::GroupCollapsed) {
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auto group = arguments.get<JS::Console::Group>();
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dbgln("{}\033[36;1m{}\033[0m", indent, group.label);
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m_group_stack_depth++;
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return JS::js_undefined();
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}
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auto output = String::join(" ", arguments.get<JS::MarkedVector<JS::Value>>());
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m_console.output_debug_message(log_level, output);
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switch (log_level) {
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case JS::Console::LogLevel::Debug:
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dbgln("{}\033[36;1m{}\033[0m", indent, output);
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break;
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case JS::Console::LogLevel::Error:
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case JS::Console::LogLevel::Assert:
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dbgln("{}\033[31;1m{}\033[0m", indent, output);
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break;
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case JS::Console::LogLevel::Info:
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dbgln("{}(i) {}", indent, output);
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break;
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case JS::Console::LogLevel::Log:
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dbgln("{}{}", indent, output);
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break;
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case JS::Console::LogLevel::Warn:
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case JS::Console::LogLevel::CountReset:
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dbgln("{}\033[33;1m{}\033[0m", indent, output);
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break;
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default:
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dbgln("{}{}", indent, output);
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break;
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}
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return JS::js_undefined();
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}
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} // namespace Web::HTML
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