HandmadeHero/project/codegen/platform_gen.cpp

#if GEN_TIME
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_IMPLEMENTATION
#define GEN_BENCHMARK
#define GEN_ENFORCE_STRONG_CODE_TYPES
#include "dependencies/gen.hpp"
#undef min
#undef max
#undef cast

#define path_gen "./gen/"

using namespace gen;
using GStr = gen::Str;

int gen_main()
{
	gen::Context ctx {};
	gen::init( & ctx);
	log_fmt("Generating code for Handmade Hero: Platform Module\n");

	CodeComment generation_notice = def_comment( txt("This was generated by project/codegen/platform_gen.cpp") );

	Builder builder = Builder::open( path_gen "context.gen.hpp");
	builder.print( generation_notice );
	builder.print( fmt_newline );

	FileContents h_context    = file_read_contents(ctx.Allocator_Temp, true, "context.hpp");
	CodeBody     code_context = parse_global_body( { rcast( char const*, h_context.data ), h_context.size } );

	CodeStruct context_struct = {};
	for ( Code code : code_context )
	{
		if ( code->Type == CT_Struct )
		{
			if ( code->Name.is_equal(txt("Context")) )
			{
				context_struct = code;
				break;
			}
			break;
		}
	}

	Array<Code> context_data_members = Array<Code>::init_reserve( ctx.Allocator_Temp, kilobytes( 1 ) );
	for ( Code code : context_struct->Body )
	{
		if ( code->Type == CT_Variable )
		{
			context_data_members.append( code );
		}
	}

	CodeDefine using_context;
	{
		StrBuilder using_context_content = StrBuilder::make_reserve( ctx.Allocator_Temp, kilobytes( 1 ) );
		{
			StrBuilder
			content = using_context_content;
			content.append( "\\\n" );

			for ( s32 id = 0; id < context_data_members.num() - 1; ++id )
			{
				Code code = context_data_members[ id ];
				content.append( code.to_strbuilder() );

				// Default serializer inserts a newline at the end of the string, we need to insert a line continuation
				content[ content.length() - 1 ] = '\\';
				content.append( "\n" );
			}
			content.append( context_data_members[ context_data_members.num() - 1 ].to_strbuilder() );
		}

		using_context = def_define( txt("using_context()"), MT_Statement, { {}, using_context_content } );
	}

	builder.print( using_context );
	builder.write();

	log_fmt("Generaton finished for Handmade Hero: Platform Module\n\n");
	// gen::deinit();
	return 0;
}
#endif