ladybird/Meta/Lagom/Tools/CodeGenerators/JSSpecCompiler/main.cpp
Dan Klishch 4c4e1e1aed JSSpecCompiler: Add if branch merging pass
It merges standalone IfBranch/ElseIfBranch nodes into IfElseIfChain
nodes. This will ease CFG generation later.
2023-09-09 11:20:43 -06:00

47 lines
1.3 KiB
C++

/*
* Copyright (c) 2023, Dan Klishch <danilklishch@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <LibCore/File.h>
#include <LibMain/Main.h>
#include <LibXML/Parser/Parser.h>
#include "Compiler/FunctionCallCanonicalizationPass.h"
#include "Compiler/IfBranchMergingPass.h"
#include "Function.h"
#include "Parser/SpecParser.h"
ErrorOr<int> serenity_main(Main::Arguments)
{
using namespace JSSpecCompiler;
ExecutionContext context;
auto input = TRY(TRY(Core::File::standard_input())->read_until_eof());
XML::Parser parser { StringView(input.bytes()) };
auto maybe_document = parser.parse();
if (maybe_document.is_error()) {
outln("{}", maybe_document.error());
return 1;
}
auto document = maybe_document.release_value();
auto maybe_function = JSSpecCompiler::SpecFunction::create(&document.root());
if (maybe_function.is_error()) {
outln("{}", maybe_function.error()->to_string());
return 1;
}
auto spec_function = maybe_function.value();
auto function = make_ref_counted<JSSpecCompiler::Function>(&context, spec_function.m_name, spec_function.m_algorithm.m_tree);
FunctionCallCanonicalizationPass(function).run();
IfBranchMergingPass(function).run();
out("{}", function->m_ast);
return 0;
}