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Meta: Split and refactor the WrapperGenerator a bit

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The single 4000-line WrapperGenerator.cpp file was proving to be a pain
to hack, and was filled with spaghetti, split it into a bunch of files
to lessen the impact of the spaghetti.
Also refactor the whole parser to use a class instead of a giant
function with a million lambdas.
This commit is contained in:
Ali Mohammad Pur 2022-02-17 02:00:43 +03:30 • committed by Andreas Kling
parent 7685d53654
commit e9c76d339b
7 changed files with 1431 additions and 1296 deletions
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168
Meta/Lagom/Tools/CodeGenerators/LibWeb/WrapperGenerator/main.cpp Normal file
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/*
* Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
* Copyright (c) 2022, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "IDLParser.h"
#include "IDLTypes.h"
#include <AK/Debug.h>
#include <AK/LexicalPath.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/File.h>
extern Vector<StringView> s_header_search_paths;
namespace IDL {
void generate_constructor_header(IDL::Interface const&);
void generate_constructor_implementation(IDL::Interface const&);
void generate_prototype_header(IDL::Interface const&);
void generate_prototype_implementation(IDL::Interface const&);
void generate_header(IDL::Interface const&);
void generate_implementation(IDL::Interface const&);
void generate_iterator_prototype_header(IDL::Interface const&);
void generate_iterator_prototype_implementation(IDL::Interface const&);
void generate_iterator_header(IDL::Interface const&);
void generate_iterator_implementation(IDL::Interface const&);
}
int main(int argc, char** argv)
{
Core::ArgsParser args_parser;
StringView path = nullptr;
StringView import_base_path = nullptr;
bool header_mode = false;
bool implementation_mode = false;
bool constructor_header_mode = false;
bool constructor_implementation_mode = false;
bool prototype_header_mode = false;
bool prototype_implementation_mode = false;
bool iterator_header_mode = false;
bool iterator_implementation_mode = false;
bool iterator_prototype_header_mode = false;
bool iterator_prototype_implementation_mode = false;
args_parser.add_option(header_mode, "Generate the wrapper .h file", "header", 'H');
args_parser.add_option(implementation_mode, "Generate the wrapper .cpp file", "implementation", 'I');
args_parser.add_option(constructor_header_mode, "Generate the constructor .h file", "constructor-header", 'C');
args_parser.add_option(constructor_implementation_mode, "Generate the constructor .cpp file", "constructor-implementation", 'O');
args_parser.add_option(prototype_header_mode, "Generate the prototype .h file", "prototype-header", 'P');
args_parser.add_option(prototype_implementation_mode, "Generate the prototype .cpp file", "prototype-implementation", 'R');
args_parser.add_option(iterator_header_mode, "Generate the iterator wrapper .h file", "iterator-header", 0);
args_parser.add_option(iterator_implementation_mode, "Generate the iterator wrapper .cpp file", "iterator-implementation", 0);
args_parser.add_option(iterator_prototype_header_mode, "Generate the iterator prototype .h file", "iterator-prototype-header", 0);
args_parser.add_option(iterator_prototype_implementation_mode, "Generate the iterator prototype .cpp file", "iterator-prototype-implementation", 0);
args_parser.add_option(Core::ArgsParser::Option {
.requires_argument = true,
.help_string = "Add a header search path passed to the compiler",
.long_name = "header-include-path",
.short_name = 'i',
.value_name = "path",
.accept_value = [&](char const* s) {
s_header_search_paths.append(s);
return true;
},
});
args_parser.add_positional_argument(path, "IDL file", "idl-file");
args_parser.add_positional_argument(import_base_path, "Import base path", "import-base-path", Core::ArgsParser::Required::No);
args_parser.parse(argc, argv);
auto file_or_error = Core::File::open(path, Core::OpenMode::ReadOnly);
if (file_or_error.is_error()) {
warnln("Failed to open {}: {}", path, file_or_error.error());
return 1;
}
LexicalPath lexical_path(path);
auto& namespace_ = lexical_path.parts_view().at(lexical_path.parts_view().size() - 2);
auto data = file_or_error.value()->read_all();
if (import_base_path.is_null())
import_base_path = lexical_path.dirname();
auto interface = IDL::Parser(path, data, import_base_path).parse();
if (namespace_.is_one_of("Crypto", "CSS", "DOM", "Encoding", "HTML", "UIEvents", "Geometry", "HighResolutionTime", "IntersectionObserver", "NavigationTiming", "RequestIdleCallback", "ResizeObserver", "SVG", "Selection", "XHR", "URL")) {
StringBuilder builder;
builder.append(namespace_);
builder.append("::");
builder.append(interface->name);
interface->fully_qualified_name = builder.to_string();
} else {
interface->fully_qualified_name = interface->name;
}
if constexpr (WRAPPER_GENERATOR_DEBUG) {
dbgln("Attributes:");
for (auto& attribute : interface->attributes) {
dbgln(" {}{}{} {}",
attribute.readonly ? "readonly " : "",
attribute.type->name,
attribute.type->nullable ? "?" : "",
attribute.name);
}
dbgln("Functions:");
for (auto& function : interface->functions) {
dbgln(" {}{} {}",
function.return_type->name,
function.return_type->nullable ? "?" : "",
function.name);
for (auto& parameter : function.parameters) {
dbgln(" {}{} {}",
parameter.type->name,
parameter.type->nullable ? "?" : "",
parameter.name);
}
}
dbgln("Static Functions:");
for (auto& function : interface->static_functions) {
dbgln(" static {}{} {}",
function.return_type->name,
function.return_type->nullable ? "?" : "",
function.name);
for (auto& parameter : function.parameters) {
dbgln(" {}{} {}",
parameter.type->name,
parameter.type->nullable ? "?" : "",
parameter.name);
}
}
}
if (header_mode)
IDL::generate_header(*interface);
if (implementation_mode)
IDL::generate_implementation(*interface);
if (constructor_header_mode)
IDL::generate_constructor_header(*interface);
if (constructor_implementation_mode)
IDL::generate_constructor_implementation(*interface);
if (prototype_header_mode)
IDL::generate_prototype_header(*interface);
if (prototype_implementation_mode)
IDL::generate_prototype_implementation(*interface);
if (iterator_header_mode)
IDL::generate_iterator_header(*interface);
if (iterator_implementation_mode)
IDL::generate_iterator_implementation(*interface);
if (iterator_prototype_header_mode)
IDL::generate_iterator_prototype_header(*interface);
if (iterator_prototype_implementation_mode)
IDL::generate_iterator_prototype_implementation(*interface);
return 0;
}