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a97944e483
Alias values are represented by "alias-name=real-name". We have a lot of repetitive code for converting between ValueID and property-specific enums. Let's see if we can generate it. :^) This first step just produces the enums, from a JSON file. The values in there are a duplication of what's in Properties.json, but eventually those will go away.
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "GeneratorUtil.h"
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#include <AK/SourceGenerator.h>
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#include <AK/StringBuilder.h>
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#include <LibCore/ArgsParser.h>
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#include <LibMain/Main.h>
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ErrorOr<void> generate_header_file(JsonObject& enums_data, Core::Stream::File& file);
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ErrorOr<void> generate_implementation_file(JsonObject& enums_data, Core::Stream::File& file);
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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StringView generated_header_path;
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StringView generated_implementation_path;
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StringView identifiers_json_path;
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Core::ArgsParser args_parser;
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args_parser.add_option(generated_header_path, "Path to the Enums header file to generate", "generated-header-path", 'h', "generated-header-path");
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args_parser.add_option(generated_implementation_path, "Path to the Enums implementation file to generate", "generated-implementation-path", 'c', "generated-implementation-path");
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args_parser.add_option(identifiers_json_path, "Path to the JSON file to read from", "json-path", 'j', "json-path");
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args_parser.parse(arguments);
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auto json = TRY(read_entire_file_as_json(identifiers_json_path));
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VERIFY(json.is_object());
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auto enums_data = json.as_object();
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auto generated_header_file = TRY(Core::Stream::File::open(generated_header_path, Core::Stream::OpenMode::Write));
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auto generated_implementation_file = TRY(Core::Stream::File::open(generated_implementation_path, Core::Stream::OpenMode::Write));
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TRY(generate_header_file(enums_data, *generated_header_file));
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TRY(generate_implementation_file(enums_data, *generated_implementation_file));
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return 0;
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}
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ErrorOr<void> generate_header_file(JsonObject& enums_data, Core::Stream::File& file)
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{
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StringBuilder builder;
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SourceGenerator generator { builder };
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generator.append(R"~~~(
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#pragma once
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namespace Web::CSS {
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enum class ValueID;
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)~~~");
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enums_data.for_each_member([&](auto& name, auto& value) {
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VERIFY(value.is_array());
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auto& members = value.as_array();
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auto enum_generator = generator.fork();
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enum_generator.set("name:titlecase", title_casify(name));
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enum_generator.appendln("enum class @name:titlecase@ {");
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for (auto& member : members.values()) {
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auto member_name = member.to_string();
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// Don't include aliases in the enum.
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if (member_name.contains('='))
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continue;
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auto member_generator = enum_generator.fork();
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member_generator.set("member:titlecase", title_casify(member_name));
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member_generator.appendln(" @member:titlecase@,");
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}
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enum_generator.appendln("};\n");
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});
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generator.appendln("}");
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TRY(file.write(generator.as_string_view().bytes()));
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return {};
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}
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ErrorOr<void> generate_implementation_file(JsonObject& enums_data, Core::Stream::File& file)
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{
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StringBuilder builder;
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SourceGenerator generator { builder };
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generator.append(R"~~~(
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#include <LibWeb/CSS/Enums.h>
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namespace Web::CSS {
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)~~~");
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// TODO: Generate some things!
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(void)enums_data;
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generator.appendln("}");
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TRY(file.write(generator.as_string_view().bytes()));
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return {};
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}
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