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Finished first pass reviewing memory.hpp for C lib generation

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This commit is contained in:
Edward R. Gonzalez
2024-11-30 23:38:27 -05:00
parent 6d04165b96
commit fbdb870986
15 changed files with 350 additions and 30 deletions
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104
gen_c_library/c_library.cpp
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@ -1,7 +1,7 @@
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
#define GEN_ENFORCE_STRONG_CODE_TYPES
#define GEN_EXPOSE_BACKEND
#include "gen.cpp"
#include "../project/gen.cpp"
#include "helpers/push_ignores.inline.hpp"
#include "helpers/helper.hpp"
@ -16,6 +16,9 @@ GEN_NS_END
#include <cstdlib> // for system()
#include "components/fixed_arena.hpp"
#include "components/misc.hpp"
using namespace gen;
constexpr char const* generation_notice =
@ -80,26 +83,117 @@ Code dump_to_scratch_and_retireve( Code code )
return result;
}
CodeBody parse_file( const char* path )
{
FileContents file = file_read_contents( GlobalAllocator, true, path );
CodeBody code = parse_global_body( { file.size, (char const*)file.data } );
return code;
}
int gen_main()
{
#define project_dir "../project/"
gen::init();
Code push_ignores = scan_file( project_dir "helpers/push_ignores.inline.hpp" );
Code pop_ignores = scan_file( project_dir "helpers/pop_ignores.inline.hpp" );
Code single_header_start = scan_file( "components/header_start.hpp" );
Code push_ignores = scan_file( project_dir "helpers/push_ignores.inline.hpp" );
Code pop_ignores = scan_file( project_dir "helpers/pop_ignores.inline.hpp" );
Code c_library_header_start = scan_file( "components/header_start.hpp" );
Builder
header = Builder::open( "gen/gen.hpp" );
header = Builder::open( "gen/gen.h" );
header.print_fmt( generation_notice );
header.print_fmt("#pragma once\n\n");
header.print( push_ignores );
// Headers
{
header.print( c_library_header_start );
Code platform = scan_file( project_dir "dependencies/platform.hpp" );
Code macros = scan_file( project_dir "dependencies/macros.hpp" );
Code basic_types = scan_file( project_dir "dependencies/basic_types.hpp" );
Code debug = scan_file( project_dir "dependencies/debug.hpp" );
CodeBody parsed_memory = parse_file( project_dir "dependencies/memory.hpp" );
CodeBody memory = def_body(ECode::Struct_Body);
for ( Code entry = parsed_memory.begin(); entry != parsed_memory.end(); ++ entry )
{
switch (entry->Type)
{
case ECode::Using:
{
log_fmt("REPLACE THIS MANUALLY: %S\n", entry->Name);
CodeUsing using_ver = entry.cast<CodeUsing>();
CodeTypedef typedef_ver = def_typedef(using_ver->Name, using_ver->UnderlyingType);
memory.append(typedef_ver);
}
break;
case ECode::Function:
{
CodeFn fn = entry.cast<CodeFn>();
s32 constexpr_found = fn->Specs.remove( ESpecifier::Constexpr );
if (constexpr_found > -1) {
log_fmt("Found constexpr proc\n");
fn->Specs.append(ESpecifier::Inline);
}
memory.append(entry);
}
break;
case ECode::Class:
case ECode::Struct:
{
CodeBody body = entry->Body->operator CodeBody();
CodeBody new_body = def_body( entry->Body->Type );
for ( Code body_entry = body.begin(); body_entry != body.end(); ++ body_entry ) switch
(body_entry->Type) {
case ECode::Preprocess_If:
{
ignore_preprocess_cond_block(txt("GEN_SUPPORT_CPP_MEMBER_FEATURES"), body_entry, body );
}
break;
default:
new_body.append(body_entry);
break;
}
entry->Body = rcast(AST*, new_body.ast);
memory.append(entry);
}
break;
case ECode::Preprocess_If:
{
ignore_preprocess_cond_block(txt("GEN_SUPPORT_CPP_MEMBER_FEATURES"), entry, memory );
}
break;
case ECode::Preprocess_Pragma:
{
swap_pragma_region_implementation( txt("FixedArena"), gen_fixed_arenas, entry, memory);
}
break;
default: {
memory.append(entry);
}
break;
}
}
header.print_fmt( roll_own_dependencies_guard_start );
header.print( platform );
header.print_fmt( "\nGEN_NS_BEGIN\n" );
header.print( macros );
header.print( basic_types );
header.print( debug );
header.print( memory );
}
header.print( pop_ignores );
header.write();
format_file( "gen/gen.h" );
gen::deinit();
return 0;
#undef project_dir

119
gen_c_library/components/fixed_arena.hpp Normal file
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@ -0,0 +1,119 @@
// #pragma once
// #include "../project/gen.hpp"
// using namespace gen;
CodeBody gen_fixed_arenas()
{
CodeBody result = def_body(ECode::Global_Body);
char const* template_struct = stringize(
struct FixedArena_<Name>
{
char memory[<Size>];
Arena arena;
};
);
char const* template_interface = stringize(
inline
void fixed_arena_init_<Name>(FixedArena_<Name>* result) {
zero_size(& result.memory[0], <Size>);
result.arena = arena_init_from_memory(& result.memory[0], <Size>);
}
inline
ssize fixed_arena_size_remaining_<Name>(FixedArena_<Name>* fixed_arena, ssize alignment) {
return size_remaining(fixed_arena.arena, alignment);
}
);
CodeStruct arena_struct_1kb = parse_struct( token_fmt_impl( 3, "Name", txt("1KB"), "Size", txt("kilobytes(1)"), template_struct ));
CodeStruct arena_struct_4kb = parse_struct( token_fmt_impl( 3, "Name", txt("4KB"), "Size", txt("kilobytes(4)"), template_struct ));
CodeStruct arena_struct_8kb = parse_struct( token_fmt_impl( 3, "Name", txt("8KB"), "Size", txt("kilobytes(8)"), template_struct ));
CodeStruct arena_struct_16kb = parse_struct( token_fmt_impl( 3, "Name", txt("16KB"), "Size", txt("kilobytes(16)"), template_struct ));
CodeStruct arena_struct_32kb = parse_struct( token_fmt_impl( 3, "Name", txt("32KB"), "Size", txt("kilobytes(32)"), template_struct ));
CodeStruct arena_struct_64kb = parse_struct( token_fmt_impl( 3, "Name", txt("64KB"), "Size", txt("kilobytes(64)"), template_struct ));
CodeStruct arena_struct_128kb = parse_struct( token_fmt_impl( 3, "Name", txt("128KB"), "Size", txt("kilobytes(128)"), template_struct ));
CodeStruct arena_struct_256kb = parse_struct( token_fmt_impl( 3, "Name", txt("256KB"), "Size", txt("kilobytes(256)"), template_struct ));
CodeStruct arena_struct_512kb = parse_struct( token_fmt_impl( 3, "Name", txt("512KB"), "Size", txt("kilobytes(512)"), template_struct ));
CodeStruct arena_struct_1mb = parse_struct( token_fmt_impl( 3, "Name", txt("1MB"), "Size", txt("megabytes(1)"), template_struct ));
CodeStruct arena_struct_2mb = parse_struct( token_fmt_impl( 3, "Name", txt("2MB"), "Size", txt("megabytes(2)"), template_struct ));
CodeStruct arena_struct_4mb = parse_struct( token_fmt_impl( 3, "Name", txt("4MB"), "Size", txt("megabytes(4)"), template_struct ));
CodeBody arena_interface_1kb = parse_global_body( token_fmt_impl( 3, "Name", txt("1KB"), "Size", txt("kilobytes(1)"), template_interface ));
CodeBody arena_interface_4kb = parse_global_body( token_fmt_impl( 3, "Name", txt("4KB"), "Size", txt("kilobytes(4)"), template_interface ));
CodeBody arena_interface_8kb = parse_global_body( token_fmt_impl( 3, "Name", txt("8KB"), "Size", txt("kilobytes(8)"), template_interface ));
CodeBody arena_interface_16kb = parse_global_body( token_fmt_impl( 3, "Name", txt("16KB"), "Size", txt("kilobytes(16)"), template_interface ));
CodeBody arena_interface_32kb = parse_global_body( token_fmt_impl( 3, "Name", txt("32KB"), "Size", txt("kilobytes(32)"), template_interface ));
CodeBody arena_interface_64kb = parse_global_body( token_fmt_impl( 3, "Name", txt("64KB"), "Size", txt("kilobytes(64)"), template_interface ));
CodeBody arena_interface_128kb = parse_global_body( token_fmt_impl( 3, "Name", txt("128KB"), "Size", txt("kilobytes(128)"), template_interface ));
CodeBody arena_interface_256kb = parse_global_body( token_fmt_impl( 3, "Name", txt("256KB"), "Size", txt("kilobytes(256)"), template_interface ));
CodeBody arena_interface_512kb = parse_global_body( token_fmt_impl( 3, "Name", txt("512KB"), "Size", txt("kilobytes(512)"), template_interface ));
CodeBody arena_interface_1mb = parse_global_body( token_fmt_impl( 3, "Name", txt("1MB"), "Size", txt("megabytes(1)"), template_interface ));
CodeBody arena_interface_2mb = parse_global_body( token_fmt_impl( 3, "Name", txt("2MB"), "Size", txt("megabytes(2)"), template_interface ));
CodeBody arena_interface_4mb = parse_global_body( token_fmt_impl( 3, "Name", txt("4MB"), "Size", txt("megabytes(4)"), template_interface ));
result.append(arena_struct_1kb);
result.append(arena_struct_4kb);
result.append(arena_struct_8kb);
result.append(arena_struct_16kb);
result.append(arena_struct_32kb);
result.append(arena_struct_128kb);
result.append(arena_struct_256kb);
result.append(arena_struct_512kb);
result.append(arena_struct_1mb);
result.append(arena_struct_2mb);
result.append(arena_struct_4mb);
result.append(arena_interface_1kb);
result.append(arena_interface_4kb);
result.append(arena_interface_8kb);
result.append(arena_interface_16kb);
result.append(arena_interface_32kb);
result.append(arena_interface_128kb);
result.append(arena_interface_256kb);
result.append(arena_interface_512kb);
result.append(arena_interface_1mb);
result.append(arena_interface_2mb);
result.append(arena_interface_4mb);
CodeDefine def = def_define(txt("fixed_arena_allocator_info(fixed_arena)"), code({ arena_allocator_proc, & fixed_arena.arena }) );
result.append(def);
result.append(parse_global_body(txt(R"(
#define fixed_arena_init(expr) _Generic((expr), \
FixedArena_1KB* : fixed_arena_init_1KB, \
FixedArena_4KB* : fixed_arena_init_4KB, \
FixedArena_8KB* : fixed_arena_init_8KB, \
FixedArena_16KB* : fixed_arena_init_16KB, \
FixedArena_32KB* : fixed_arena_init_32KB, \
FixedArena_64KB* : fixed_arena_init_64KB, \
FixedArena_128KB* : fixed_arena_init_128KB, \
FixedArena_256KB* : fixed_arena_init_256KB, \
FixedArena_512KB* : fixed_arena_init_512KB, \
FixedArena_1MB* : fixed_arena_init_1MB, \
FixedArena_2MB* : fixed_arena_init_2MB, \
FixedArena_4MB* : fixed_arena_init_4MB \
)(expr)
#define fixed_arena_size_remaining(expr, alignment) _Generic((expr), \
FixedArena_1KB* : fixed_arena_size_remaining_1KB, \
FixedArena_4KB* : fixed_arena_size_remaining_4KB, \
FixedArena_8KB* : fixed_arena_size_remaining_8KB, \
FixedArena_16KB* : fixed_arena_size_remaining_16KB, \
FixedArena_32KB* : fixed_arena_size_remaining_32KB, \
FixedArena_64KB* : fixed_arena_size_remaining_64KB, \
FixedArena_128KB* : fixed_arena_size_remaining_128KB, \
FixedArena_256KB* : fixed_arena_size_remaining_256KB, \
FixedArena_512KB* : fixed_arena_size_remaining_512KB, \
FixedArena_1MB* : fixed_arena_size_remaining_1MB, \
FixedArena_2MB* : fixed_arena_size_remaining_2MB, \
FixedArena_4MB* : fixed_arena_size_remaining_4MB \
)(expr, alignment)
)"
)));
return result;
}

14
gen_c_library/components/header_start.hpp Normal file
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@ -0,0 +1,14 @@
/*
gencpp: An attempt at "simple" staged metaprogramming for c/c++.
See Readme.md for more information from the project repository.
Public Address:
https://github.com/Ed94/gencpp
This is a single header C-Library variant.
Define GEN_IMPLEMENTATION before including this file in a single compilation unit.
*/
#if ! defined(GEN_DONT_ENFORCE_GEN_TIME_GUARD) && ! defined(GEN_TIME)
# error Gen.hpp : GEN_TIME not defined
#endif

61
gen_c_library/components/misc.hpp Normal file
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@ -0,0 +1,61 @@
// #pragma once
// #include "../project/gen.hpp"
// using namespace gen;
using SwapContentProc = CodeBody(void);
b32 ignore_preprocess_cond_block( StrC cond_sig, Code& entry_iter, CodeBody& body )
{
CodePreprocessCond cond = entry_iter.cast<CodePreprocessCond>();
if ( cond->Content.contains(cond_sig) )
{
s32 depth = 1;
++ entry_iter; for(b32 continue_for = true; continue_for && entry_iter != body.end(); ++ entry_iter) switch
(entry_iter->Type) {
case ECode::Preprocess_If:
case ECode::Preprocess_IfDef:
case ECode::Preprocess_IfNotDef:
depth ++;
break;
case ECode::Preprocess_EndIf:
{
depth --;
if (depth == 0) {
continue_for = false;
}
}
break;
}
}
return entry_iter != body.end();
}
void swap_pragma_region_implementation( StrC region_name, SwapContentProc* swap_content, Code& entry_iter, CodeBody& body )
{
CodePragma possible_region = entry_iter.cast<CodePragma>();
String region_sig = string_fmt_buf(GlobalAllocator, "region %s", region_name.Ptr);
String endregion_sig = string_fmt_buf(GlobalAllocator, "endregion %s", region_name.Ptr);
if ( possible_region->Content.contains(region_sig))
{
body.append(possible_region);
body.append(swap_content());
++ entry_iter; for(b32 continue_for = true; continue_for; ++entry_iter) switch
(entry_iter->Type) {
case ECode::Preprocess_Pragma:
{
CodePragma possible_end_region = entry_iter.cast<CodePragma>();
if ( possible_end_region->Content.contains(endregion_sig) ) {
body.append(possible_end_region);
continue_for = false;
}
}
break;
}
}
body.append(entry_iter);
}