mirror of
https://github.com/Ed94/Odin.git
synced 2026-06-13 01:21:38 -07:00
ed
bc45aa80b6
- Minor fixes to gencpp - Adjust .clang-format to be similar to the codebase's conventions
288 lines
7.5 KiB
C++
288 lines
7.5 KiB
C++
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
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#define GEN_ENFORCE_STRING_CODE_TYPES
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#define GEN_EXPOSE_BACKEND
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#include "gencpp/gen.cpp"
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#include "gencpp/gen.builder.cpp"
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using namespace gen;
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#ifdef GEN_SYSTEM_WINDOWS
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#include <process.h>
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#endif
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#pragma region Directories
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// Program assumes its working directory is the src directory
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#define path_root ""
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#define path_codegen path_root "codegen/"
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#define path_src path_root "src/"
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#pragma endregion Directories
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inline
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CodeBody parse_file( char const* path ) {
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FileContents content = file_read_contents( GlobalAllocator, true, path );
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CodeBody code = parse_global_body( StrC { content.size, (char const*)content.data });
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return code;
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}
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inline
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void format_file( char const* path )
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{
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// Need to execute clang format on the generated file to get it to match the original.
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#define clang_format "clang-format "
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#define cf_format_inplace "-i "
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#define cf_style "-style=file:" "./scripts/.clang-format "
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#define cf_verbose "-verbose "
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String command = String::make( GlobalAllocator, clang_format );
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command.append( cf_format_inplace );
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command.append( cf_style );
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command.append( cf_verbose );
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command.append( path );
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log_fmt("\tRunning clang-format on file:\n");
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system( command );
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log_fmt("\tclang-format finished reformatting.\n");
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#undef cf_cmd
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#undef cf_format_inplace
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#undef cf_style
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#undef cf_verbse
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}
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struct Odin_AstKind {
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StringCached desc;
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Code def;
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};
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Array<Odin_AstKind> get_odin_ast_kinds()
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{
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local_persist Array<Odin_AstKind> kinds = Array<Odin_AstKind>::init_reserve(GlobalAllocator, kilobytes(64));
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{
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local_persist s32 done_once = 0;
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if (done_once)
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return kinds;
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++ done_once;
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}
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CodeType t_char_const_ptr = parse_type(code(char const*));
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CodeBody ast_kinds_header = parse_file( path_codegen "ast_kinds.hpp" );
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for ( Code code = ast_kinds_header.begin(); code != ast_kinds_header.end(); ++ code )
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{
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switch (code->Type)
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{
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using namespace ECode;
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case Comment:
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case Preprocess_Pragma:
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// Ignore
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continue;
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case Variable:
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{
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Odin_AstKind entry { {nullptr}, {} };
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CodeVar var = code.cast<CodeVar>();
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if ( ! var->ValueType.is_equal( t_char_const_ptr ) )
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{
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__debugbreak();
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log_failure("Expected all globally defined variables to be char cons* type");
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return kinds;
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}
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if ( ! var->Value || ! var->Value->Content )
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{
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__debugbreak();
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log_failure("Expected all globally defined variable to have a string assigned to it");
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return kinds;
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}
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// Grab the description
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entry.desc = var->Value->Content;
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++ code;
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// Grab the definition
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if ( code->Type != Struct && code->Type != Typedef )
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{
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__debugbreak();
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log_failure("Expected a struct or typedef for the entry definition");
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return kinds;
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}
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entry.def = code;
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kinds.append(entry);
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}
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continue;
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case Struct:
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__debugbreak();
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log_failure("Expected a description definition as char const* first");
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return kinds;
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break;
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}
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}
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return kinds;
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}
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int gen_main()
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{
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gen::init();
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log_fmt("Generating code for Odin's src\n");
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// Remove TOKEN_KINDS usage in tokenizer.cpp
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if (0)
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{
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}
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// Remove AST_KINDS macro usage in parser.hpp
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if (1)
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{
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CodeBody src_parser_header = parse_file( path_src "parser.hpp" );
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CodeBody body = def_body( ECode::Global_Body );
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body.append( def_comment(txt("NOTICE(github: Ed94): This is a generated variant of parser.hpp using <repo_root>/codegen/gen_src.cpp")));
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body.append(fmt_newline);
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Array<Odin_AstKind> ast_kinds = get_odin_ast_kinds();
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for (Code code = src_parser_header.begin(); code != src_parser_header.end(); ++ code)
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{
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switch (code->Type)
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{
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case ECode::Preprocess_Define:
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if ( code->Name.starts_with( txt("AST_KINDS"))) {
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// Skip, we don't want it.
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continue;
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}
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if ( code->Name.starts_with( txt("AST_KIND"))) {
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// Skip the next 3 definitions
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++ code;
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++ code;
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continue;
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}
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body.append(code);
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continue;
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case ECode::Untyped:
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if (code->Content.starts_with(txt("AST_KINDS")))
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break;
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case ECode::Enum:
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{
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if (code->Name.starts_with( txt("AstKind")))
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{
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// Swap with generated variant
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CodeBody swap_body = def_body( ECode::Enum_Body );
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{
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swap_body.append( code_str(Ast_Invalid,));
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for (Odin_AstKind& kind : ast_kinds)
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swap_body.append( untyped_str( String::fmt_buf(GlobalAllocator, "Ast_%S,", kind.def->Name )));
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swap_body.append( code_str(Ast_COUNT));
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}
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CodeEnum swapped_enum = code.cast<CodeEnum>().duplicate();
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swapped_enum->Body = swap_body;
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body.append(swapped_enum);
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}
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else
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body.append(code);
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}
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continue;
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case ECode::Variable:
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{
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if (code->Name.starts_with(txt("ast_strings")))
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{
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// Swap with generated table
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String generated_table = String::make_reserve(GlobalAllocator, kilobytes(32));
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{
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for (Odin_AstKind& kind : ast_kinds)
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generated_table.append(token_fmt("desc", (StrC)kind.desc, stringize(
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{ cast(u8 *) <desc>, gb_size_of(<desc>) -1 },
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)));
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}
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CodeVar swapped_table = code.cast<CodeVar>().duplicate();
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swapped_table->Value = code_fmt( "kinds", (StrC)generated_table, stringize(
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{
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{cast(u8 *)"invalid node", gb_size_of("invalid node")},\n
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<kinds>
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}));
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body.append(swapped_table);
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body.append(fmt_newline);
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// Right after is where the struct definitions were defined, we'll insert them here
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body.append(def_pragma(txt("region AST_KINDS")));
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body.append(fmt_newline);
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for (Odin_AstKind& kind : ast_kinds)
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{
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Code def = kind.def.duplicate();
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def->Name = get_cached_string( String::fmt_buf(GlobalAllocator, "Ast%S", kind.def->Name));
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body.append( def );
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body.append(fmt_newline);
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}
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body.append(def_pragma(txt("endregion AST_KINDS")));
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continue;
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}
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if (code->Name.starts_with(txt("ast_variant_sizes")))
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{
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// Swap with generated table
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String generated_table = String::make_reserve(GlobalAllocator, kilobytes(32));
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{
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for (Odin_AstKind& kind : ast_kinds)
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generated_table.append(token_fmt( "name", (StrC)kind.def->Name, stringize(
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gb_size_of(Ast<name>),\n
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)));
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}
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CodeVar swapped_table = code.cast<CodeVar>().duplicate();
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swapped_table->Value = code_fmt( "kinds", (StrC)generated_table, stringize(
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{
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0,\n
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<kinds>
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}));
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body.append(swapped_table);
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continue;
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}
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body.append(code);
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}
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continue;
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case ECode::Struct:
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{
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CodeStruct code_struct = code.cast<CodeStruct>();
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if (code->Name.starts_with(txt("Ast")))
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for (Code ast_code : code_struct->Body) switch (ast_code->Type)
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{
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case ECode::Union:
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// Swap out the union's contents with the generated member definitions
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CodeBody body_swap = def_body(ECode::Union_Body);
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for (Odin_AstKind kind : ast_kinds)
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body_swap.append( parse_variable( token_fmt( "name", (StrC)kind.def->Name, stringize(
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Ast<name> <name>;
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))));
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ast_code->Body = rcast(AST*, body_swap.ast);
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break;
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default:
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continue;
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}
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body.append(code);
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}
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continue;
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default:
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body.append(code);
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continue;
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}
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}
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Builder header = Builder::open( path_src "parser.hpp" );
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header.print(body);
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header.write();
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format_file( path_src "parser.hpp" );
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}
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// Remove TYPE_KINDS usage in types.cpp
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if (0)
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{
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}
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// gen::deinit();
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return 0;
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}
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