mirror of
https://github.com/RGBCube/serenity
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0806ccaeec
I got fed up with looking at error messages that tell me "VERIFICATION FAILED: !is_error()". So this commit introduces DiagnosticEngine class whose purpose is to accumulate and print more user-friendly errors.
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/*
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* Copyright (c) 2024, Dan Klishch <danilklishch@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 "DiagnosticEngine.h"
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namespace JSSpecCompiler {
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bool DiagnosticEngine::has_fatal_errors() const
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{
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return m_has_fatal_errors;
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}
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void DiagnosticEngine::print_diagnostics()
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{
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auto use_color = isatty(STDERR_FILENO) ? UseColor::Yes : UseColor::No;
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StringBuilder builder;
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for (auto const& diagnostic : m_diagnostics)
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diagnostic.format_into(builder, use_color);
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out(stderr, "{}", builder.string_view());
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}
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void DiagnosticEngine::Diagnostic::format_into(StringBuilder& builder, UseColor use_color) const
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{
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if (!location.filename.is_empty())
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builder.appendff("{}:{}:{}: ", location.filename, location.line + 1, location.column + 1);
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static constexpr Array<StringView, 4> colored_diagnostic_levels = { {
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"\e[1mnote\e[0m"sv,
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"\e[1;33mwarning\e[0m"sv,
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"\e[1;31merror\e[0m"sv,
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"\e[1;31mfatal error\e[0m"sv,
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} };
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static constexpr Array<StringView, 4> diagnostic_levels = { {
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"note"sv,
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"warning"sv,
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"error"sv,
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"fatal error"sv,
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} };
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auto diagnostic_level_text = (use_color == UseColor::Yes ? colored_diagnostic_levels : diagnostic_levels);
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builder.appendff("{}: ", diagnostic_level_text[to_underlying(level)]);
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if (auto logical_location = location.logical_location) {
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if (!logical_location->section.is_empty()) {
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builder.appendff("in {}", logical_location->section);
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if (!logical_location->step.is_empty())
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builder.appendff(" step {}", logical_location->step);
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builder.appendff(": ");
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}
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}
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builder.append(message);
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builder.append('\n');
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for (auto const& note : notes)
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note.format_into(builder, use_color);
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}
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void DiagnosticEngine::add_diagnostic(Diagnostic&& diagnostic)
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{
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if (diagnostic.level == DiagnosticLevel::FatalError)
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m_has_fatal_errors = true;
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if (diagnostic.level != DiagnosticLevel::Note)
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m_diagnostics.append(move(diagnostic));
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else
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m_diagnostics.last().notes.append(move(diagnostic));
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}
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}
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