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WIP: Design is almost done, impl this weekend.

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This commit is contained in:
Edward R. Gonzalez 2023-04-05 03:03:56 -04:00
parent d93fd462e1
commit a4cb0c12ef
18 changed files with 1414 additions and 474 deletions
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3
.vscode/settings.json vendored
View File

@ -7,6 +7,7 @@
"utility": "cpp",
"xtr1common": "cpp",
"xutility": "cpp",
"initializer_list": "cpp"
"initializer_list": "cpp",
"table.h": "c"
}
}

44
Readme.md
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@ -2,7 +2,7 @@
An attempt at simple staged metaprogramming for c/c++.
This library is intended for small-to midsize projects.
This library is intended for small-to midsized projects.
### TOC
@ -174,20 +174,27 @@ The construction will fail and return InvalidCode otherwise.
Interface :
* def_forward_decl
* def_class
* def_class_body
* def_class_fwd
* def_enum
* def_enum_class
* def_enum_body
* def_global_body
* def_proc
* def_proc_body
* def_namespace
* def_namespace_body
* def_operator
* def_operator_fwd
* def_param
* def_params
* def_operator
* def_proc
* def_proc_body
* def_proc_fwd
* def_specifier
* def_specifiers
* def_struct
* def_struct_body
* def_struct_fwd
* def_variable
* def_type
* def_using
@ -206,19 +213,20 @@ Code ASTs may be explictly validated at anytime using Code's check() member func
Interface :
* make_forward_decl
* make_class
* make_enum
* make_enum_class
* make_fwd
* make_global_body
* make_proc
* make_namespace
* make_params
* make_operator
* make_params
* make_proc
* make_specifiers
* make_struct
* make_variable
* make_type
* make_using
* make_using_namespace
### Parse construction
@ -226,19 +234,29 @@ A string provided to the API is parsed for the intended language construct.
Interface :
* parse_forward_decl
* parse_class
* parse_glboal_body
* parse_proc
* parse_classes
* parse_class_fwd
* parse_classes_fwd
* parse_enum
* parse_enums
* parse_global_body
* parse_namespace
* parse_namespaces
* parse_params
* parse_proc
* parse_procs
* parse_operator
* parse_operators
* parse_specifiers
* parse_struct
* parse_strucs
* parse_variable
* parse_variables
* parse_type
* parse_types
* parse_using
* parse_using
* parse_usings
The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs.
This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing.

2
project/Bloat.cpp
View File

@ -124,5 +124,7 @@ sw token_fmt_va( char* buf, uw buf_size, char const* fmt, s32 num_tokens, va_lis
}
}
tokmap_clear( & tok_map );
return result;
}

11
project/Bloat.hpp
View File

@ -73,17 +73,17 @@
#endif
#define bit( Value_ ) ( 1 << Value_ )
#define bitfield_is_equal( Field_, Mask_ ) ( ( Mask_ & Field_ ) == Mask_ )
#define bitfield_is_equal( Field_, Mask_ ) ( ( (Mask_) & (Field_) ) == (Mask_) )
#define ct constexpr
#define forceinline ZPL_ALWAYS_INLINE
#define print_nl( _) zpl_printf("\n")
#define ccast( Type_, Value_ ) * const_cast< Type_* >( & Value_ )
#define ccast( Type_, Value_ ) * const_cast< Type_* >( & (Value_) )
#define scast( Type_, Value_ ) static_cast< Type_ >( Value_ )
#define rcast( Type_, Value_ ) reinterpret_cast< Type_ >( Value_ )
#define pcast( Type_, Value_ ) ( * (Type_*)( & Value_ ) )
#define pcast( Type_, Value_ ) ( * (Type_*)( & (Value_) ) )
#define txt_impl( Value_ ) #Value_
#define txt( Value_ ) txt_impl( Value_ )
#define txt_with_length( Value_ ) txt_impl( Value_ ), sizeof( txt_impl( Value_) )
#define txt_with_length( Value_ ) txt_impl( Value_ ), sizeof( txt_impl( Value_ ) )
#define do_once() \
do \
@ -131,6 +131,8 @@ namespace Memory
void cleanup();
}
sw token_fmt_va( char* buf, uw buf_size, char const* fmt, s32 num_tokens, va_list va );
inline
char const* token_fmt( char const* fmt, sw num_tokens, ... )
{
@ -185,3 +187,4 @@ sw fatal(char const *fmt, ...)
return -1;
#endif
}

411
project/gen.cpp
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@ -4,40 +4,57 @@
#ifdef gen_time
namespace gen
{
ZPL_TABLE_DEFINE( StringTable, str_tbl_, string );
ZPL_TABLE_DEFINE( TypeTable, type_tbl_ , Code );
namespace StaticData
{
static array(CodePOD) CodePool = nullptr;
static array(arena) StringArenas = nullptr;
static StringTable StringMap;
static TypeTable TypeMap;
static sw InitSize_CodePool = megabytes(64);
static sw InitSize_StringArena = megabytes(32);
static sw InitSize_StringTable = megabytes(4);
static sw InitSize_TypeTable = megabytes(4);
static allocator Allocator_CodePool = zpl_heap();
static allocator Allocator_StringArena = zpl_heap();
static allocator Allocator_StringTable = zpl_heap();
static allocator Allocator_TypeTable = zpl_heap();
}
#pragma region CONSTANTS
# ifdef GEN_DEFINE_LIBRARY_CODE_CONSTANTS
const Code t_void;
Code t_void;
const Code t_bool;
const Code t_char;
const Code t_char_wide;
Code t_bool;
Code t_char;
Code t_char_wide;
const Code t_s8;
const Code t_s16;
const Code t_s32;
const Code t_s64;
Code t_s8;
Code t_s16;
Code t_s32;
Code t_s64;
const Code t_u8;
const Code t_u16;
const Code t_u32;
const Code t_u64;
Code t_u8;
Code t_u16;
Code t_u32;
Code t_u64;
const Code t_sw;
const Code t_uw;
Code t_sw;
Code t_uw;
const Code t_f32;
const Code t_f64;
const Code spec_constexpr;
const Code spec_inline;
Code t_f32;
Code t_f64;
# endif
#pragma endregion CONSTANTS
Code spec_constexpr;
Code spec_inline;
#pragma endregion CONSTANTS
/*
Used internally to retireve a Code object form the CodePool.
@ -66,10 +83,9 @@ namespace gen
t_bool_write = ccast( Code, t_void );
t_bool_write = def_type( txt(void) );
# define def_constant_code_type( Type_ ) \
Code& \
t_##Type_##_write = ccast( Code, t_##Type_ ); \
t_##Type_##_write = def_type( txt(Type_) ) \
# define def_constant_code_type( Type_ ) \
Code& \
t_##Type_ = def_type( txt(Type_) )
def_constant_code_type( bool );
def_constant_code_type( char );
@ -109,80 +125,92 @@ namespace gen
#endif
}
Code decl_type( Code type, char const* name, Code specifiers )
void clear_code_pool()
{
using namespace ECode;
array_clear( StaticData::CodePool );
if ( type->Type != Specifiers )
{
log_failure( "gen::decl_type: type is not a Typename");
return InvalidCode;
}
sw size = array_capacity( StaticData::CodePool );
if ( type->Type != Typename )
{
log_failure( "gen::decl_type: specifiers is not a 'Specfiers' type");
return InvalidCode;
}
Code
result = make_code();
result->Type = Decl_Type;
result->Name = string_make( g_allocator, name );
array_init( result->Entries, g_allocator );
result->add( specifiers );
result->add( type );
result.lock();
return result;
zpl_memset( StaticData::CodePool, 0, size );
}
Code decl_proc( char const* name
, Code specifiers
, Code params
, Code ret_type
)
allocator get_string_allocator( s32 str_length )
{
using namespace ECode;
using namespace StaticData;
if ( specifiers->Type != Specifiers )
if ( StringArenas->total_allocated + str_length > StringArenas->total_size )
{
log_failure( "gen::decl_fn: specifiers was not a `Specifiers` type" );
return InvalidCode;
arena new_arena;
arena_init_from_allocator( & new_arena, Allocator_StringArena, InitSize_StringArena );
array_append( StringArenas, new_arena );
return arena_allocator( StringArenas );
}
if ( params->Type != Parameters )
{
log_failure( "gen::decl_fn: params was not a `Parameters` type" );
return InvalidCode;
}
if ( ret_type->Type != Typename )
{
log_failure( "gen::decl_fn: ret_type was not a Typename" );
return InvalidCode;
}
Code
result = make_code();
result->Type = Decl_Function;
result->Name = string_make( g_allocator, name );
array_init( result->Entries, g_allocator );
if ( specifiers )
result->add( specifiers );
result->add( ret_type );
if ( params )
result->add( params );
result.lock();
return result;
return arena_allocator( StringArenas );
}
// Will either make or retrive a code string.
string code_string( char const* cstr, s32 length )
{
s32 hash_length = length > kilobytes(1) ? kilobytes(1) : length;
u32 key = crc32( cstr, hash_length );
string* result = str_tbl_get( & StaticData::StringMap, key );
if ( result )
{
return * result;
}
str_tbl_set( & StaticData::StringMap, key, * result );
return * result;
}
void set_init_reserve_code_pool( sw size )
{
StaticData::InitSize_CodePool = size;
}
void set_init_reserve_string_arena( sw size )
{
StaticData::InitSize_StringArena = size;
}
void set_init_reserve_string_table( sw size )
{
StaticData::InitSize_StringTable = size;
}
void set_init_reserve_type_table( sw size )
{
StaticData::InitSize_TypeTable = size;
}
void set_allocator_code_pool( allocator pool_allocator )
{
StaticData::Allocator_CodePool = pool_allocator;
}
void set_allocator_string_arena( allocator string_allocator )
{
StaticData::Allocator_StringArena = string_allocator;
}
void set_allocator_string_table( allocator string_allocator )
{
StaticData::Allocator_StringArena = string_allocator;
}
void set_allocator_type_table( allocator type_reg_allocator )
{
StaticData::Allocator_TypeTable = type_reg_allocator;
}
# pragma region Upfront Constructors
Code def_params( s32 num, ... )
{
using namespace ECode;
@ -271,7 +299,7 @@ namespace gen
switch ( body->Type )
{
case Function_Body:
case Proc_Body:
case Untyped:
break;
@ -285,7 +313,7 @@ namespace gen
Code
result = make_code();
result->Name = string_make( g_allocator, name );
result->Type = Function;
result->Type = Proc;
array_init( result->Entries, g_allocator );
@ -331,8 +359,7 @@ namespace gen
switch ( entry->Type )
{
case Decl_Function:
case Decl_Type:
case Proc_Forward:
case Namespace:
case Namespace_Body:
case Parameters:
@ -387,8 +414,7 @@ namespace gen
switch ( entry->Type )
{
case Decl_Function:
case Decl_Type:
case Proc_Forward:
case Namespace:
case Namespace_Body:
case Parameters:
@ -630,7 +656,7 @@ namespace gen
return result;
}
Code def_type( char const* name )
Code def_type( char const* name, Code specifiers )
{
Code
result = make_code();
@ -654,57 +680,9 @@ namespace gen
return result;
}
# pragma endregion Upfront Constructors
Code untyped_str(char const* fmt)
{
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
return result;
}
Code untyped_fmt(char const* fmt, ...)
{
local_persist thread_local
char buf[ZPL_PRINTF_MAXLEN] = { 0 };
va_list va;
va_start(va, fmt);
zpl_snprintf_va(buf, ZPL_PRINTF_MAXLEN, fmt, va);
va_end(va);
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
result->Content = string_make( g_allocator, buf );
return result;
}
Code untyped_token_fmt( char const* fmt, s32 num_tokens, ... )
{
local_persist thread_local
char buf[ZPL_PRINTF_MAXLEN] = { 0 };
va_list va;
va_start(va, fmt);
token_fmt_va(buf, ZPL_PRINTF_MAXLEN, fmt, num_tokens, va);
va_end(va);
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
result->Content = string_make( g_allocator, buf );
result.lock();
return result;
}
# pragma region Incremetnal Constructors
Code make_proc( char const* name
, Code specifiers
, Code params
@ -734,7 +712,7 @@ namespace gen
Code
result = make_code();
result->Name = string_make( g_allocator, name );
result->Type = Function;
result->Type = Proc;
array_init( result->Entries, g_allocator );
@ -788,12 +766,12 @@ namespace gen
return result;
}
Code make_unit( char const* name )
Code make_global_body( char const* name = "", s32 num = 0, ... )
{
Code
result = make_code();
result->Type = ECode::Unit;
result->Name = string_make( g_allocator, name );
result->Type = ECode::Global_Body;
result->Name = string_make( g_allocator, "");
array_init( result->Entries, g_allocator );
@ -802,7 +780,9 @@ namespace gen
return result;
}
# pragma endregion Incremetnal Constructions
# pragma region Parsing Constructors
Code parse_proc( char const* def, s32 length )
{
if ( def == nullptr )
@ -856,7 +836,7 @@ namespace gen
while ( left && char_is_space( * scanner ) ) \
{ \
left--; \
scanner++ ;
scanner++ ; \
}
#define Get
@ -947,7 +927,7 @@ namespace gen
Code
result = make_code();
result->Name = string_make( g_allocator, name );
result->Type = ECode::Function;
result->Type = ECode::Proc;
array_init( result->Entries, g_allocator );
@ -985,8 +965,124 @@ namespace gen
}
# pragma endregion Parsing Constructors
# pragma region Untyped Constructors
Code untyped_str(char const* fmt)
{
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
result->Content = result->Name;
return result;
}
Code untyped_fmt(char const* fmt, ...)
{
local_persist thread_local
char buf[ZPL_PRINTF_MAXLEN] = { 0 };
va_list va;
va_start(va, fmt);
zpl_snprintf_va(buf, ZPL_PRINTF_MAXLEN, fmt, va);
va_end(va);
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
result->Content = string_make( g_allocator, buf );
return result;
}
Code untyped_token_fmt( char const* fmt, s32 num_tokens, ... )
{
local_persist thread_local
char buf[ZPL_PRINTF_MAXLEN] = { 0 };
va_list va;
va_start(va, fmt);
token_fmt_va(buf, ZPL_PRINTF_MAXLEN, fmt, num_tokens, va);
va_end(va);
Code
result = make_code();
result->Name = string_make( g_allocator, fmt );
result->Type = ECode::Untyped;
result->Content = string_make( g_allocator, buf );
result.lock();
return result;
}
# pragma endregion Untyped Constructors
# pragma region AST
bool AST::add( AST* other )
{
switch ( Type )
{
using namespace ECode;
case Untyped:
break;
case Global_Body:
break;
case Proc:
break;
case Proc_Body:
break;
case Proc_Forward:
break;
case Namespace:
break;
case Namespace_Body:
break;
case Parameters:
break;
case Specifiers:
break;
case Struct:
break;
case Struct_Body:
break;
case Variable:
break;
case Typedef:
break;
case Typename:
break;
case Using:
break;
}
array_append( Entries, other );
other->Parent = this;
return true;
}
bool AST::check()
{
}
string AST::to_string() const
{
@ -1007,7 +1103,7 @@ namespace gen
result = string_append_length( result, Content, string_length(Content) );
break;
case Decl_Function:
case Proc_Forward:
{
u32 index = 0;
u32 left = array_count( Entries );
@ -1040,14 +1136,7 @@ namespace gen
}
break;
case Decl_Type:
if ( Entries[0]->Type == Specifiers )
result = string_append_fmt( result, "%s\n", Entries[0]->to_string());
result = string_append_fmt( result, "%s %s;\n", Entries[1]->to_string(), Name );
break;
case Function:
case Proc:
{
u32 index = 0;
u32 left = array_count( Entries );
@ -1080,7 +1169,7 @@ namespace gen
}
break;
case Function_Body:
case Proc_Body:
fatal("NOT SUPPORTED YET");
break;
@ -1138,9 +1227,10 @@ namespace gen
return result;
}
# pragma endregion AST
# pragma region Builder
void Builder::print( Code code )
{
Buffer = string_append_fmt( Buffer, "%s\n\n", code->to_string() );
@ -1171,5 +1261,6 @@ namespace gen
// file_seek( & File, 0 );
file_close( & File );
}
# pragma endregion Builder
}
#endif

570
project/gen.hpp
View File

@ -13,17 +13,14 @@
* Expression validation : Execution expressions are defined using the untyped string API.
There is no parse API for validating expression (possibly will add in the future)
* Complete file parser DSL : This isn't like the unreal header tool.
Code injection to file or based off a file contents is not supported by the api.
However nothing is stopping you using the library for that purpose.
Code injection to file or based off a file contents is not supported by the api. However nothing is stopping you using the library for that purpose.
* Modern c++ (STL library) features
As mentioned in [Usage](#Usage), the user is provided Code objects by calling the interface procedures to generate them or find existing matches.
The AST is managed by the library and provided the user via its interface prodedures.
Notes:
* The allocator definitions used are exposed to the user incase they want to dictate memory usage*
* The allocator definitions used are exposed to the user incase they want to dictate memory usage
* ASTs are wrapped for the user in a Code struct which essentially a warpper for a AST* type.
* Both AST and Code have member symbols but their data layout is enforced to be POD types.
@ -58,22 +55,30 @@
Interface :
* def_forward_decl
* def_class
* def_class_body
* def_class_fwd
* def_enum
* def_enum_class
* def_enum_body
* def_global_body
* def_proc
* def_proc_body
* def_namespace
* def_namespace_body
* def_operator
* def_operator_fwd
* def_param
* def_params
* def_operator
* def_proc
* def_proc_body
* def_proc_fwd
* def_specifier
* def_specifiers
* def_struct
* def_struct_body
* def_struct_fwd
* def_variable
* def_type
* def_typedef
* def_using
* def_using_namespace
@ -82,27 +87,27 @@
A Code ast is provided but only completed upfront if all components are provided.
Components are then added using the AST API for adding ASTs:
* code.add( AST* ) // Adds AST with validation.
* code.add_entry( AST* ) // Adds AST entry without validation.
* code.add_content( AST* ) // Adds AST string content without validation.
* code.add( AST* ) // Adds AST with validation.
* code.add_entry( AST* ) // Adds AST entry without validation.
Code ASTs may be explictly validated at anytime using Code's check() member function.
Interface :
* make_forward_decl
* make_class
* make_enum
* make_enum_class
* make_global_body
* make_proc
* make_namespace
* make_params
* make_operator
* make_params
* make_proc
* make_specifiers
* make_struct
* make_variable
* make_type
* make_typedef
* make_using
* make_using_namespace
### Parse construction
@ -110,23 +115,33 @@
Interface :
* parse_forward_decl
* parse_class
* parse_glboal_body
* parse_proc
* parse_classes
* parse_enum
* parse_enums
* parse_global_body
* parse_namespace
* parse_params
* parse_namespaces
* parse_operator
* parse_specifiers
* parse_operators
* parse_proc
* parse_procs
* parse_struct
* parse_strucs
* parse_variable
* parse_variables
* parse_type
* parse_typedef
* parse_typedefs
* parse_using
* parse_using
* parse_usings
The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs.
This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing.
The plural variants provide an array of codes, its up to the user to add them to a body AST
(they are not auto-added to a body)
### Untyped constructions
Code ASTs are constructed using unvalidated strings.
@ -158,7 +173,7 @@
// #define GEN_DEFINE_DSL
#define GEN_DEFINE_LIBRARY_CODE_CONSTANTS
// #define GEN_BAN_CPP_TEMPLATES
// #define GEN_USE_FATAL
#define GEN_USE_FATAL
#ifdef gen_time
namespace gen
@ -179,41 +194,52 @@ namespace gen
{
enum Type : u8
{
Invalid, // Used only with improperly created Code nodes
Untyped, // User provided raw string
Decl_Function, // <specifier> <type> <name> ( <params> )
Decl_Type, // <type> <name>;
Function, // <type> <name>( <parameters> )
Function_Body, // { <body> }
Namespace, // Define a namespace
Namespace_Body, // { <body> }
Parameters, // <type> <param> ...
Specifiers, // Used with functions, structs, variables
Struct, // struct <specifier> <name> <parent>
Struct_Body, // {<body> }
Variable, // <type> <name>
Typedef, // typedef <type> <alias>
Typename, // Typename, used with other types
Using, // using <name> = <type>
Unit, // Represents a file.
Invalid,
Untyped,
Access_Public,
Access_Private,
Access_Protected,
Class,
Enum,
Enum_Body,
Global_Body,
Namespace,
Namespace_Body,
Parameters,
Proc,
Proc_Body,
Proc_Forward,
Specifiers,
Struct,
Struct_Body,
Variable,
Typedef,
Typename,
Using,
Num_Types
};
inline
local_persist
char const* str( Type type )
{
static
char const* lookup[Num_Types] = {
"Invalid",
"Untyped",
"Decl_Function",
"Decl_Type",
"Function",
"Function_Body",
"Access_Public",
"Access_Private",
"Access_Protected",
"Class",
"Enum",
"Enum_Body",
"Global_Body",
"Namespace",
"Namespace_Body",
"Parameters",
"Proc",
"Proc_Body",
"Proc_Forward",
"Specifiers",
"Struct",
"Struct_Body",
@ -221,7 +247,6 @@ namespace gen
"Typedef",
"Typename",
"Using",
"Unit",
};
return lookup[ type ];
@ -245,7 +270,7 @@ namespace gen
inline
char const* str( Type op )
{
static
local_persist
char const* lookup[ Num_Ops ] = {
"+",
"-",
@ -262,43 +287,48 @@ namespace gen
{
enum Type : u8
{
Attribute, // [ <attributes ]
Alignas, // alignas(#)
Constexpr, // constexpr
Const, // const
Inline, // inline
RValue, //
Attribute,
Alignas,
Constexpr,
Const,
Inline,
Pointer,
Reference,
RValue,
C_Linkage, // extern "C"
API_Import, // Vendor specific way dynamic import symbol
API_Export, // Vendor specific way to dynamic export
External_Linkage, // extern
Internal_Linkage, // static (within unit file)
Static_Member, // static (within sturct/class)
Local_Persist, // static (within function)
Thread_Local, // thread_local
C_Linkage,
API_Import,
API_Export,
External_Linkage,
Internal_Linkage,
Static_Member,
Local_Persist,
Thread_Local,
Invalid,
Num_Specifiers,
Invalid
};
// Specifier to string
inline
char const* to_str( Type specifier )
{
static
local_persist
char const* lookup[ Num_Specifiers ] = {
"alignas",
"constexpr",
"const",
"inline",
"*",
"&",
"&&",
"extern \"C\"",
#if defined(ZPL_SYSTEM_WINDOWS) && 0// API_Import and API_Export strings
#if defined(ZPL_SYSTEM_WINDOWS)
"__declspec(dllexport)",
"__declspec(dllimport)",
#elif defined(ZPL_SYSTEM_MACOS) || 1
#elif defined(ZPL_SYSTEM_MACOS)
"__attribute__ ((visibility (\"default\")))",
"__attribute__ ((visibility (\"default\")))",
#endif
@ -315,14 +345,14 @@ namespace gen
Type to_type( char const* str, s32 length )
{
static
local_persist
u32 keymap[ Num_Specifiers ];
do_once_start
for ( u32 index = 0; index < Num_Specifiers; index++ )
{
char const* enum_str = to_str( (Type)index );
keymap[index] = crc32( enum_str, strnlen(enum_str, 42) );
keymap[index] = crc32( enum_str, zpl_strnlen(enum_str, 42) );
}
do_once_end
@ -339,6 +369,7 @@ namespace gen
}
using SpecifierT = ESpecifier::Type;
#pragma region Data Structures
// TODO: If perf needs it, convert layout an SOA format.
/*
Simple AST POD with functionality to seralize into C++ syntax.
@ -349,32 +380,46 @@ namespace gen
*/
struct AST
{
#pragma region Member API
#pragma region Member Procedures
bool add( AST* other );
forceinline
void add( AST* other )
void add_entry( AST* other )
{
array_append( Entries, other );
other->Parent = this;
}
forceinline
AST* body()
{
return Entries[0];
}
forceinline
bool check();
forceinline
bool has_entries() const
{
static bool lookup[ ECode::Num_Types] = {
false, // Invalid
false, // Untyped
true, // Decl_Function
true, // Decl_Type
true, // Function
false,
false,
false,
true, // Global_Body
true, // Parameters
true, // Proc
true, // Proc_Body
true, // Proc_Forward
false, // Specifies
true, // Struct
true, // Struct_Body
true, // Variable
true, // Typedef
true, // Typename
true, // Using
};
return lookup[Type];
@ -394,7 +439,7 @@ namespace gen
string to_string() const;
#pragma endregion Member API
#pragma endregion Member Procedures
#define Using_Code_POD \
CodeT Type; \
@ -434,20 +479,32 @@ namespace gen
Code body()
{
if ( ast->Type == ECode::Invalid )
fatal("Code::body: Type is invalid, cannot get");
{
log_failure("Code::body: Type is invalid, cannot get");
return InvalidCode;
}
if ( ast->Entries == nullptr || array_count(ast->Entries) == 0 )
fatal("Code::body: Entries of ast not properly setup.");
{
log_failure("Code::body: Entries of ast not properly setup.");
return InvalidCode;
}
return pcast( Code, ast->Entries[0]);
#ifdef GEN_ENFORCE_READONLY_AST
if ( ast->Readonly )
{
log_failure("Attempted to a body AST from a readonly AST!");
return InvalidCode;
}
#endif
return * (Code*)( ast->body() );
}
forceinline
void lock()
{
#ifdef GEN_ENFORCE_READONLY_AST
ast->Readonly = true;
#endif
}
forceinline
@ -468,6 +525,20 @@ namespace gen
Code& operator =( Code other )
{
if ( ast == nullptr )
{
log_failure("Attempt to set with a null AST!");
return *this;
}
#ifdef GEN_ENFORCE_READONLY_AST
if ( ast->Readonly )
{
log_failure("Attempted to set a readonly AST!");
return *this;
}
#endif
ast = other.ast;
return *this;
@ -476,12 +547,18 @@ namespace gen
forceinline
AST* operator ->()
{
#ifdef GEN_ENFORCE_READONLY_AST
if ( ast == nullptr )
fatal("Attempt to dereference a nullptr!");
{
log_failure("Attempt to dereference a nullptr!");
return nullptr;
}
#ifdef GEN_ENFORCE_READONLY_AST
if ( ast->Readonly )
fatal("Attempted to access a member from a readonly ast!");
{
log_failure("Attempted to access a member from a readonly AST!");
return nullptr;
}
#endif
return ast;
@ -495,6 +572,10 @@ namespace gen
// Used internally for the most part to identify invaidly generated code.
extern const Code InvalidCode;
/*
*/
ZPL_TABLE_DECLARE( ZPL_EXTERN, StringTable, str_tbl_, string );
/*
Type registy: Used to store Typename ASTs. Types are registered by their string literal value.
@ -502,47 +583,56 @@ namespace gen
Strings made with the Typename ASTs are stored in thier own arena allocator.
TODO: Implement and replace usage of def_type.
*/
ZPL_TABLE_DECLARE( ZPL_EXTERN, TypeRegistry, type_reg_, Code );
ZPL_TABLE_DECLARE( ZPL_EXTERN, TypeTable, type_tbl_, Code );
#pragma endregion Data Structures
#pragma region gen API
#pragma region Gen Interface
/*
Initialize the library.
This currently just initializes the CodePool.
*/
void init();
#pragma region Upfront
/*
Foward Declare a type:
<specifiers> <type> <name>;
*/
Code def_fwd_type( Code type, char const* name, Code specifiers = UnusedCode );
// Use this only if you know you generated the code you needed to a file
// And rather get rid of current code asts instead of growing the pool memory.
void clear_code_pool();
/*
Foward Declare a function:
<specifiers> <name> ( <params> );
*/
Code def_fwd_proc( char const* name
// Set these before calling gen's init() procedure.
void set_init_reserve_code_pool ( sw size );
void set_init_reserve_string_arena( sw size );
void set_init_reserve_string_table( sw size );
void set_init_reserve_type_table ( sw size );
void set_allocator_code_pool ( allocator pool_allocator );
void set_allocator_string_arena( allocator string_allocator );
void set_allocator_string_table( allocator string_allocator );
void set_allocator_type_table ( allocator type_reg_allocator );
# pragma region Upfront
Code def_class ( char const* name, Code body, Code parent = UnusedCode, Code specifiers = UnusedCode );
Code def_class_body( s32 num, ... );
Code def_class_fwd ( char const* name );
Code def_enum( char const* name, Code type, Code body );
Code def_global_body( s32 num, ... );
Code def_namespace ( char const* name, Code body );
Code def_namespace_body( s32 num, ... );
Code def_operator( OperatorT op
, Code specifiers
, Code params
, Code ret_type
, Code body
);
Code def_operator_fwd( OperatorT op, Code specifiers, Code params, Code ret_type );
/*
Define an expression:
< c/c++ expression >
Code def_param( Code type, char const* name );
Code def_params( s32 num, ... );
Code def_params( s32 num, Code* params );
TODO: Evalute if you want to validiate at the execution layer during gen_time (dosen't seem necessary)
*/
// Code def_expression( Code value );
/*
Define a function:
<specifiers> <name> ( <params> )
{
<body>
}
*/
Code def_proc( char const* name
, Code specifiers
, Code params
@ -550,197 +640,101 @@ namespace gen
, Code body
);
/*
Define a fucntion body:
{
<entry>
...
}
There will be an empty line separation between entires
*/
Code def_proc_body( s32 num, ... );
Code def_proc_body( s32 num, Code* codes );
/*
Define a namespace;
namespace <name>
{
<body>
}
*/
Code def_namespace( char const* name, Code body );
Code def_proc_fwd( char const* name
, Code specifiers
, Code params
, Code ret_type
);
/*
Define a namespace body:
{
<entry>
...
}
There will be an empty line separation between entires
*/
Code def_namespace_body( s32 num, ... );
/*
Define a set of parameters for a function:
<name> <type>, ...
*/
Code def_params( s32 num, ... );
Code def_params( s32 num, char const** params );
/*
Define an operator definition.
*/
Code def_operator( OperatorT op, Code specifiers, Code params, Code ret_type, Code body );
/*
Define a set of specifiers for a function, struct, type, or varaible
Note:
If alignas is specified the procedure expects the next argument to be the alignment value.
If attribute is specified the procedure expects the next argument to be its content as a string.
*/
Code def_specifier( SpecifierT* specifier );
Code def_specifiers( s32 num , ... );
Code def_specifiers( s32 num, SpecifierT* specs );
/*
Define a struct:
struct <specifiers> <name> : <parent>
{
<body>
}
*/
Code def_struct( char const* name, Code body, Code parent = UnusedCode, Code specifiers = UnusedCode );
/*
Define a struct's body:
{
<entry>
...
}
There will be an empty line separation between entires
*/
Code def_struct_body( s32 num, ... );
Code def_struct_body( s32 num, Code* codes );
/*
Define a variable:
<specifiers> <type> <name> = <value>;
*/
Code def_sturct_fwd();
Code def_variable( Code type, char const* name, Code value = UnusedCode, Code specifiers = UnusedCode );
/*
Define a typename AST value.
Useless by itself, its intended to be used in conjunction with other Code.
Code def_type( char const* name, Code specifiers = UnusedCode );
Planned - Not yet Implemented:
Typename Codes are not held in the CodePool, instead they are stored in a
type registry (hastable where the key is a crc hash of the name string).
If a key exists the existing code value will be provided.
*/
Code def_type( char const* name );
/*
Define a using typedef:
using <name> = <type>;
*/
Code def_using( char const* name, Code type );
/*
Define a using namespace:
using namespace <name>;
Can only be used in either a
*/
Code def_using ( char const* name, Code type );
Code def_using_namespace( char const* name );
#pragma endregion Upfront
# pragma endregion Upfront
#pragma region Incremental
/*
Provides an incomplete procedure AST but sets the intended type.
Any adds will be type checked.
# pragma region Incremental
Code make_class( char const* name, Code parent = UnusedCode, Code specifiers = UnusedCode );
Code make_enum ( char const* name, Code type = UnusedCode, Code body = UnusedCode );
Code make_enum_class( char const* name, Code type = UnusedCode, Code body = UnusedCode );
Code make_global_body( char const* name = "", s32 num = 0, ... );
Code make_namespace( char const* name );
Code make_operator( OperatorT op
, Code specifiers = UnusedCode
, Code params = UnusedCode
, Code ret_type = UnusedCode
, Code body = UnusedCode
);
Code make_params( s32 num, ... );
Body is automatically made. Use body() to retrieve.
*/
Code make_proc( char const* name
, Code specifiers = UnusedCode
, Code params = UnusedCode
, Code ret_type = UnusedCode
);
/*
Provides an incomplete struct AST but sets the intended type.
Any adds will be type checked.
Code make_specifiers( s32 num , ... );
Code make_specifiers( s32 num, SpecifierT* specs );
Body is automatically made. Use body() to retrieve.
*/
Code make_struct( char const* name, Code parent = UnusedCode, Code specifiers = UnusedCode );
/*
Creates a unit file.
Code make_variable( char const* name, Code type = UnusedCode, Code value = UnusedCode, Code specifiers = UnusedCode );
These represent an encapsulation of a generated file
Used this if you need to pass around a group of Code entires at file scope level.
Code make_type( char const* name, Code specifiers = UnusedCode );
The name provided is the name of the file.
*/
Code make_file_body( char const* name );
#pragma endregion Incremental
Code make_using( char const* name, Code type = UnusedCode, Code specifiers = UnusedCode );
# pragma endregion Incremental
/*
*/
Code parse_variable( char const* var_def, s32 length );
# pragma region Parsing
Code parse_class( char const* class_def, s32 length );
s32 parse_classes( char const* class_defs, s32 length, Code* out_classes );
/*
*/
Code parse_using( char const* using_def, s32 length );
Code parse_enum( char const* enum_def, s32 length);
s32 parse_enums( char const* enum_defs, s32 length, Code* out_enums );
/*
Code parse_global_body( char const* body_def, s32 length );
*/
Code parse_operator( char const* operator_def, s32 length );
/*
Define a procedure by parsing a string.
Note: This parser only supports the language features the library supports
Any other features used and the lex or parse operation will fail.
This is not a full-on c/c++ parser, it literally only grabs
what it needs to reconstruct the Code AST for seralization in the
builder, nothing else.
*/
Code parse_proc( char const* proc_def, s32 length );
s32 parse_procs( char const* proc_defs, s32 length, Code* out_procs );
/*
Define a struct by parsing a string.
Note: This parser only supports the language features the library supports
Any other features used and the lex or parse operation will fail.
This is not a full-on c/c++ parser, it literally only grabs
what it needs to reconstruct the Code AST for seralization in the
builder, nothing else.
*/
Code parse_struct( char const* struct_def, s32 length );
s32 parse_structs( char const* struct_defs, s32 length, Code* out_struct_codes );
/*
Code parse_variable( char const* var_def, s32 length );
s32 parse_variables( char const* vars_def, s32 length, Code* out_var_codes );
*/
s32 parse_vars( char const* vars_def, s32 length, Code* out_vars_codes );
Code parse_type( char const* type_def, s32 length );
/*
Code parse_typedef( char const* typedef_def, s32 length );
s32 parse_typedef( char const* typedef_def, s32 length, Code* out_typedef_codes );
*/
s32 parse_usings( char const* usings_def, s32 length, Code* out_usings_codes );
Code parse_using ( char const* using_def, s32 length );
s32 parse_usings( char const* usings_def, s32 length, Code* out_using_codes );
# pragma endregion Parsing
#pragma region Untyped text
# pragma region Untyped text
/*
Define an untyped code string.
@ -779,7 +773,7 @@ Code make_file_body( char const* name );
Consider this an a preprocessor define.
*/
Code untyped_token_fmt( char const* fmt, s32 num_tokens, ... );
#pragma endregion Untyped text
# pragma endregion Untyped text
/*
Used to generate the files.
@ -806,7 +800,7 @@ Code make_file_body( char const* name );
bool open( char const* path );
void write();
};
#pragma endregion gen API
#pragma endregion Gen Interface
}
#pragma region MACROS
@ -839,7 +833,7 @@ Code make_file_body( char const* name );
# define using_type( Name_, Type_ ) Code Name_ = gen::def_using( #Name_, t_##Type_ )
# define variable( Type_, Name_, ... ) Code Name_ = gen::def_variable( t_##Type_, #Name_, __VA_ARGS__ )
# define untyped( Value_ ) gen::untyped_str( txt(Value_) )
# define untyped( Value_ ) gen::untyped_str( txt_with_length(Value_) )
# define code_token( Fmt_, ... ) gen::untyped_token_fmt( Fmt_, VA_NARGS( __VA_ARGS__), __VA_ARGS__ )
# define code_fmt( Fmt_, ... ) gen::untyped_fmt( Fmt_, __VA_ARGS__ )
# define specifiers( ... ) gen::def_specifiers( VA_NARGS( __VA_ARGS__ ), __VA_ARGS__ )
@ -849,19 +843,24 @@ Code make_file_body( char const* name );
# define var( Type_, Name_, ... ) gen::def_variable( Type_, #Name_, __VA_ARGS__ )
# define make( Type_, Name_, ... ) Code Name_ = make_##Type_( #Name_, __VA_ARGS__ );
# define enum( Name_, Type_, Body_ ) gen::def_enum( #Name_, t_##Type_, Body_ )
# define proc( Name_, Specifiers_, RetType_, Parameters_, Body_ ) Name_ = gen::def_proc( #Name_, Specifiers_, Parameters_, RetType_, Body_ )
# define proc_body( ... ) gen::def_proc_body( VA_NARGS( __VA_ARS__ ), __VA_ARGS__ )
# define params( ... ) gen::def_params( VA_NARGS( __VA_ARGS__ ) / 2, __VA_ARGS__ )
# define struct( Name_, Parent_, Specifiers_, Body_ ) Name_ = gen::def_struct( #Name_, Body_, Parent_, Specifiers_ )
# define struct_body( ... ) gen::def_struct_body( VA_NARGS( __VA_ARGS__ ), __VA_ARGS__ )
# define add_var( Type_, Name_, ... ) add( gen::def_variable( t_##Type_, #Name_, __VA_ARGS__ ) )
# define add_untyped( Value_ ) add( gen::untyped_str( txt( Value ) ) )
# define add_ret_type( ... )
# define add_params( ... )
# define add_var( Value_ ) add( gen::parse_variable( txt_with_length(Value_)) )
# define add_untyped( Value_ ) add( gen::untyped_str( txt_with_length( Value_ ) ) )
# define add_type( Value_ ) add( gen::parse_type( txt_with_length(Value_)) )
# define add_params( Value_ ) add( gen::parse_params( txt_with_length(Value_) ))
# define enum_code( Def_ ) gen::parse_enum( txt( Def_ ), sizeof( txt( Def_ )) )
# define global_code( Def_ ) gen::parse_global_body( txt_with_length( Def_ ))
# define namespace_code( Def_ ) gen::parse_namespace( txt(Def_), sizeof( txt(Def_)) )
# define proc_code( Def_ ) gen::parse_proc( txt( Def_ ), sizeof( txt( Def_ )) )
# define struct_code( Def_ ) gen::parse_struct( txt( Def_ ), sizeof( txt( Def_ )) )
# define variable_code( Def_ ) gen::parse_variable( txt_with_length( Def_ ) )
#endif
#pragma endregion MACROS
@ -873,31 +872,38 @@ namespace gen
// These are not set until gen::init is called.
// This just preloads a bunch of Code types into the code pool.
extern const Code t_void;
extern Code t_void;
extern const Code t_bool;
extern const Code t_char;
extern const Code t_wchar_t;
extern Code t_bool;
extern Code t_char;
extern Code t_wchar_t;
extern const Code t_s8;
extern const Code t_s16;
extern const Code t_s32;
extern const Code t_s64;
extern Code t_s8;
extern Code t_s16;
extern Code t_s32;
extern Code t_s64;
extern const Code t_u8;
extern const Code t_u16;
extern const Code t_u32;
extern const Code t_u64;
extern Code t_u8;
extern Code t_u16;
extern Code t_u32;
extern Code t_u64;
extern const Code t_sw;
extern const Code t_uw;
extern Code t_sw;
extern Code t_uw;
extern const Code t_f32;
extern const Code t_f64;
extern Code t_f32;
extern Code t_f64;
extern const Code spec_constexpr;
extern const Code spec_inline;
extern Code spec_constexpr;
extern Code spec_inline;
}
#endif
namespace gen
{
extern Code access_public;
extern Code access_protected;
extern Code access_private;
}
#pragma endregion CONSTANTS
#endif

543
project/gen.singleheader.c99.cpp Normal file
View File

@ -0,0 +1,543 @@
/*
Will generate a c99 compliant version of the gen library
Note: This is done this way to test usage of library.
*/
#define GEN_DEFINE_DSL
#include "gen.cpp"
using namespace gen;
ct char const* Header_Comment =
R"(/*
genc: A simple staged metaprogramming library for C99.
This library is intended for small-to midsize projects.
AST type checking supports only a small subset of c++.
See the 'ECode' namespace and 'gen API' region to see what is supported.
### *WHAT IS NOT PROVIDED*
* Macro or template generation : This library is to avoid those, adding support for them adds unnecessary complexity.
If you desire define them outside the gen_time scopes.
* Expression validation : Execution expressions are defined using the untyped string API.
There is no parse API for validating expression (possibly will add in the future)
* Complete file parser DSL : This isn't like the unreal header tool.
Code injection to file or based off a file contents is not supported by the api. However nothing is stopping you using the library for that purpose.
* Modern c++ (STL library) features
The AST is managed by the library and provided the user via its interface prodedures.
Notes:
* The allocator definitions used are exposed to the user incase they want to dictate memory usage
* ASTs are wrapped for the user in a Code struct which essentially a warpper for a AST* type.
* Both AST and Code have member symbols but their data layout is enforced to be POD types.
Data layout of AST struct:
genc_CodeT Type;
bool Readonly;
genc_AST* Parent;
genc_string Name ;
genc_string Comment;
union {
array(genc_AST*) Entries;
genc_string Content;
};
*`CodeT` is a typedef for `ECode::Type` which is the type of the enum.*
ASTs can be set to readonly by calling Code's lock() member function.
Adding comments is always available even if the AST is set to readonly.
### There are four sets of interfaces for Code AST generation the library provides
* Upfront
* Incremental
* Parsing
* Untyped
### Upfront Construction
All component ASTs must be previously constructed, and provided on creation of the code AST.
The construction will fail and return InvalidCode otherwise.
Interface :
* genc_def_class
* genc_def_class_body
* genc_def_class_fwd
* genc_def_enum
* genc_def_enum_class
* genc_def_enum_body
* genc_def_global_body
* genc_def_namespace
* genc_def_namespace_body
* genc_def_operator
* genc_def_param
* genc_def_params
* genc_def_proc
* genc_def_proc_body
* genc_def_proc_fwd
* genc_def_operator_fwd
* genc_def_specifier
* genc_def_specifiers
* genc_def_struct
* genc_def_struct_body
* genc_def_struct_fwd
* genc_def_variable
* genc_def_type
* genc_def_using
* genc_def_using_namespace
### Incremental construction
A Code ast is provided but only completed upfront if all components are provided.
Components are then added using the AST API for adding ASTs:
* genc_code_add( AST*, AST* other ) // Adds AST with validation.
* genc_code_add_entry( AST*, AST* other ) // Adds AST entry without validation.
Code ASTs may be explictly validated at anytime using Code's check() member function.
Interface :
* genc_make_class
* genc_make_enum
* genc_make_enum_class
* genc_make_fwd
* genc_make_global_body
* genc_make_namespace
* genc_make_operator
* genc_make_params
* genc_make_proc
* genc_make_specifiers
* genc_make_struct
* genc_make_variable
* genc_make_type
* genc_make_using
### Parse construction
A string provided to the API is parsed for the intended language construct.
Interface :
* genc_parse_class
* genc_parse_classes
* genc_parse_class_fwd
* genc_parse_classes_fwd
* genc_parse_enum
* genc_parse_enums
* genc_parse_global_body
* genc_parse_namespace
* genc_parse_namespaces
* genc_parse_params
* genc_parse_proc
* genc_parse_procs
* genc_parse_operator
* genc_parse_operators
* genc_parse_specifiers
* genc_parse_struct
* genc_parse_strucs
* genc_parse_variable
* genc_parse_variables
* genc_parse_type
* genc_parse_types
* genc_parse_using
* genc_parse_usings
The parse API treats any execution scope definitions with no validation and are turned into untyped Code ASTs.
This includes the assignmetn of variables; due to the library not yet supporting c/c++ expression parsing.
The plural variants provide an array of codes, its up to the user to add them to a body AST
(they are not auto-added to a body)
### Untyped constructions
Code ASTs are constructed using unvalidated strings.
Interface :
* genc_untyped_str
* genc_untyped_fmt
* genc_untyped_token_fmt
During serialization any untyped Code AST is has its string value directly injected inline of
whatever context the content existed as an entry within.
Even though thse are not validated from somewhat correct c/c++ syntax or components, it doesn't mean that
Untyped code can be added as any component of a Code AST:
* Untyped code cannot have children, thus there cannot be recursive injection this way.
* Untyped code can only be a child of a parent of body AST, or for values of an assignment.
These restrictions help prevent abuse of untyped code to some extent.
*/
)";
Code IfDef_GENC_IMPLEMENTATION;
Code EndIf_GENC_IMPLEMENTATION;
Code make_log_failure()
{
Code result = make_global_body();
{
result->add( untyped_str(
R"(#ifdef GEN_USE_FATAL)"
));
result->add( proc_code(
inline
sw genc_log_failure(char const *fmt, ...)
{
if ( genc_global_ShouldShowDebug == false )
return 0;
sw res;
va_list va;
va_start(va, fmt);
res = zpl_printf_va(fmt, va);
va_end(va);
return res;
}
));
result->add( untyped_str(
R"(#else)"
));
result->add( parse_proc(
R"(inline
sw genc_log_failure(char const *fmt, ...)
{
local_persist thread_local
char buf[ZPL_PRINTF_MAXLEN] = { 0 };
va_list va;
#if Build_Debug
va_start(va, fmt);
zpl_snprintf_va(buf, ZPL_PRINTF_MAXLEN, fmt, va);
va_end(va);
assert_crash(buf);
return -1;
#else
va_start(va, fmt);
zpl_printf_err_va( fmt, va);
va_end(va);
zpl_exit(1);
return -1;
#endif
})"
, 372
));
result->add( untyped_str(
R"(#endif)"
));
result->check();
}
return result;
}
Code make_ECode()
{
Code ECode = make_global_body();
{
ECode->add( parse_enum(
R"(enum genc_ECode
{
Invalid,
Untyped,
Enum,
Enum_Body,
Global_Body,
Parameters,
Proc,
Proc_Body,
Proc_Forward,
Specifiers,
Struct,
Struct_Body,
Variable,
Typedef,
Typename,
Num_Types
};
typedef u32 genc_CodeT;)" + 1
, 280
));
ECode->add( proc_code(
inline
char const* genc_ecode_to_str( Type type )
{
genc_local_persist
char const* lookup[Num_Types] = {
"Invalid",
"Untyped",
"Access_Public",
"Access_Private",
"Access_Protected",
"Class",
"Enum",
"Enum_Body",
"Global_Body",
"Namespace",
"Namespace_Body",
"Parameters",
"Proc",
"Proc_Body",
"Proc_Forward",
"Specifiers",
"Struct",
"Struct_Body",
"Variable",
"Typedef",
"Typename",
"Using",
};
return lookup[ type ];
}
));
ECode->check();
}
return ECode;
}
Code make_EOperator()
{
Code eoperator = make_global_body();
return eoperator;
}
Code make_ESpecifier()
{
Code especifier = make_global_body();
return especifier;
}
Code make_Code()
{
Code code = make_global_body();
code->add( struct_code(
struct genc_AST
{
genc_CodeT Type;
bool Readonly;
genc_AST* Parent;
genc_string Name;
genc_string Comment;
union {
array(genc_AST*) Entries;
genc_string Content;
};
};
typedef struct genc_AST genc_AST;
typedef genc_AST* Code;
));
code->add( proc_code(
bool genc_ast_add( genc_Code other );
));
code->add( proc_code(
genc_forceinline
void genc_ast_add_entry( genc_Code self, genc_Code other )
{
genc_array_append( self->Entries, other );
other->Parent = self;
}
));
code->add( untyped_str(
R"(#define genc_code_body( AST_ ) AST->Entries[0])", 47
));
code->add( proc_code(
genc_forceinline
bool genc_code_has_entries( Code self ) const
{
genc_local_persist
bool lookup[ genc_ECode::Num_Types] = {
false, // Invalid
false, // Untyped
true, // Global_Body
true, // Parameters
true, // Proc
true, // Proc_Body
true, // Proc_Foward
false, // Specifies
true, // Struct
true, // Struct_Body
true, // Variable
true, // Typedef
true, // Typename
};
return lookup[self->Type];
}
));
code->check();
return code;
}
Code make_static_Data()
{
Code
data = make_global_body();
data->add( IfDef_GENC_IMPLEMENTATION );
data->add( global_code(
static genc_array(genc_AST) genc_CodePool = nullptr;
static genc_array(genc_arena) genc_StringArenas = nullptr;
static genc_StringTable genc_StringMap;
static genc_TypeTable genc_TypeMap;
static sw genc_InitSize_CodePool = genc_megabytes(64);
static sw genc_InitSize_StringArena = genc_megabytes(32);
static sw genc_InitSize_StringTable = genc_megabytes(4);
static sw genc_InitSize_TypeTable = genc_megabytes(4);
static allocator genc_Allocator_CodePool = zpl_heap();
static allocator genc_Allocator_StringArena = zpl_heap();
static allocator genc_Allocator_StringTable = zpl_heap();
static allocator genc_Allocator_TypeTable = zpl_heap();
));
data->add( untyped_str( R"(#ifdef GENC_DEFINE_LIBRARY_CODE_CONSTANTS)"));
data->add( global_code(
Code t_void;
Code t_bool;
Code t_char;
Code t_char_wide;
Code t_s8;
Code t_s16;
Code t_s32;
Code t_s64;
Code t_u8;
Code t_u16;
Code t_u32;
Code t_u64;
Code t_sw;
Code t_uw;
Code t_f32;
Code t_f64;
));
data->add( untyped_str( R"(#endif)"));
data->add( global_code(
Code spec_inline;
Code spec_const;
));
data->add( EndIf_GENC_IMPLEMENTATION );
return data;
}
Code make_make_code()
{
}
Code make_init()
{
}
Code make_mem_config_interface()
{
}
Code make_internal_funcs()
{
}
Code make_upfront()
{
}
Code make_incremental()
{
}
Code make_parsing()
{
}
Code make_untyped()
{
}
Code make_interface()
{
}
int gen_main()
{
Memory::setup();
gen::init();
IfDef_GENC_IMPLEMENTATION = untyped(
R"(#ifdef GENC_IMPLEMENTATION)"
);
EndIf_GENC_IMPLEMENTATION = untyped(
R"(#endif // GENC_IMPLEMENTATION)"
);
Code header_comment = untyped_str( Header_Comment, sizeof( Header_Comment ) );
Code log_failure = make_log_failure();
Code ecode = make_ECode();
Code eoperator = make_EOperator();
Code especifier = make_ESpecifier();
Code code = make_Code();
Builder
builder;
builder.open( "genc.h" );
builder.print( header_comment );
builder.print( log_failure );
builder.print( ecode );
builder.print( eoperator );
builder.print( especifier );
builder.print( code );
builder.write();
Memory::cleanup();
return 0;
}

55
project/gen.singleheader.c99.data Normal file
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@ -0,0 +1,55 @@
# HEADER COMMENT
1, 166
# CODE TYPES
Invalid
Untyped
Enum
Enum_Body
Global_Body
Parameters
Proc
Proc_Body
Proc_Forward
Specifiers
Struct
Struct_Body
Variable
Typedef
Typename
Using
# CODE_HAS_ENTRIES
# SPECIFIER_TYPES
Attribute
Alignas
Constexpr
Const
Inline
Pointer
API_Import
API_Export
External_Linkage
Internal_Linkage
Local_Persist
Thread_Local
Invalid
# SPECIFIER_STRINGS
"alignas",
"const",
"inline",
"*",
#if defined(ZPL_SYSTEM_WINDOWS)
"__declspec(dllexport)",
"__declspec(dllimport)",
#elif defined(ZPL_SYSTEM_MACOS)
"__attribute__ ((visibility (\"default\")))",
"__attribute__ ((visibility (\"default\")))",
#endif
"extern",
"static",
"static",
"thread_local"

34
project/gen.singleheader.c99.refactor Normal file
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@ -0,0 +1,34 @@
__VERSION 1
word AST, genc_AST
word Code, genc_Code
word ECode, genc_ECode
word EOperator, genc_EOperator
word ESpecifier, genc_ESpecifier
word CodeT, genc_CodeT
word string, genc_string
word init, genc_init
namespace def_, genc_def_
namespace make_, genc_make_
namespace parse_, genc_parse_
namespace untyped_, genc_untyped_
namespace set_init_, genc_set_init_
namespace set_allocator_, genc_set_allocator_
word clean_code_pool, genc_clean_code_pool
word Builder, genc_Builder
word CodePool, genc_CodePool
word StringArenas, genc_StringArenas
word CodePOD, genc_AST
word StringMap, genc_StringMap
word TypeMap, genc_TypeMap
namespace InitSize_, genc_InitSize_
namespace Allocator_, genc_Allocator_
namespace spec_, genc_spec

0
project/gen.singleheader.cpp Normal file
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4
singleheader/genc.refactor Normal file
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@ -0,0 +1,4 @@
// Removes the genc_ namespace if desired
namespace genc_

58
test/Array.hpp
View File

@ -16,7 +16,7 @@
#ifndef GEN_DEFINE_DSL
using namespace gen;
Code t_allocator = def_type( txt(allocator) );
Code t_allocator = def_type( txt(allocator) );
Code header;
{
@ -64,7 +64,6 @@
return ArrayBase;
}
#define gen_array( Type_ ) gen__array( #Type_, sizeof(Type_), a_base )
Code gen__array( char const* type_str, s32 type_size, Code parent )
{
#ifndef GEN_DEFINE_DSL
@ -155,6 +154,7 @@
Code append = make_proc( "append" );
{
append->add( def_params( 1, type, "value") );
append->add( t_bool );
Code
body = append.body();
@ -172,6 +172,8 @@
return true;
)));
append->check();
}
Code back;
@ -295,7 +297,7 @@
}
Code set_capacity = parse_proc( txt_with_length(
bool set_capacity( new_capacity )
bool set_capacity( sw new_capacity )
{
Header& header = get_header();
@ -305,7 +307,7 @@
if ( capacity < header.Num )
header.Num = capacity;
uw size = sizeof(Header) + sizeof(Type) * capacity;
sw size = sizeof(Header) + sizeof(Type) * capacity;
Header* new_header = rcast( Header* alloc( header.Allocator, size ));
if ( new_header == nullptr )
@ -591,18 +593,58 @@
return array_def;
}
struct ArrayRequest
{
char const* Name;
sw Size;
};
array(ArrayRequest) UserArrayGenQueue;
#define gen_array( Type_ ) add_gen_array_request( #Type_, sizeof(Type_) )
void add_gen_array_request( const char* type_str, sw type_size )
{
ArrayRequest request = { type_str, type_size };
array_append( UserArrayGenQueue, request );
}
u32 gen_array_file()
{
Code a_base = gen__array_base();
Code a_u32 = gen_array( u32 );
Code a_cstr = gen_array( char const* );
add_gen_array_request( "u32", sizeof(u32) );
gen_array( char const* );
array(Code) array_asts;
array_init( array_asts, g_allocator );
sw left = array_count( UserArrayGenQueue );
sw index = 0;
while( left -- )
{
ArrayRequest request = UserArrayGenQueue[index];
Code result = gen__array( request.Name, request.Size, a_base );
array_append( array_asts, result );
}
Builder
arraygen;
arraygen.open( "Array.gen.hpp" );
arraygen.print( a_u32 );
arraygen.print( a_cstr );
left = array_count( array_asts );
index = 0;
while( left-- )
{
Code code = array_asts[index];
arraygen.print( code );
}
arraygen.write();
return 0;
}

22
test/c99/meson.build Normal file
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@ -0,0 +1,22 @@
project( 'test', 'c', default_options : ['buildtype=debug'] )
# add_global_arguments('-E', language : 'cpp')
includes = include_directories(
[
'../gen',
'../../singleheader'
])
# get_sources = files('./get_sources.ps1')
# sources = files(run_command('powershell', get_sources, check: true).stdout().strip().split('\n'))
sources = [ 'test.c99.c' ]
if get_option('buildtype').startswith('debug')
add_project_arguments('-DBuild_Debug', language : ['c' ])
endif
executable( 'test_c99', sources, include_directories : includes )

79
test/c99/table.h Normal file
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@ -0,0 +1,79 @@
#include "gen.h"
#define Table( Type_ ) Table_##Type_
typedef u64(*)(void*) HashingFn;
#if gen_time
# define gen_table( Type_, HashingFn_ ) gen_request_table( #Type_, sizeof(Type_), HashingFn_ )
u64 table_default_hash_fn( void* address )
{
return crc32( address, 4 );
}
Code gen_table_code( char const* type_str, sw type_size, HashingFn hash_fn )
{
Code table;
return table;
}
struct TableRequest
{
char const* Type;
sw Size;
HashingFn HashFn;
};
array(TableRequest) TableRequests;
void gen_request_table( const char* type_str, sw type_size, HashingFn hash_fn )
{
TableRequest request = { type_str, type_size, hash_fn };
array_append( TableRequests, request );
}
u32 gen_table_file()
{
gen_table( u32 );
gen_table( char const* );
array(Code) array_asts;
array_init( array_asts, g_allocator );
sw left = array_count( TableRequests );
sw index = 0;
while( left -- )
{
ArrayRequest request = TableRequests[index];
Code result = gen_table_code( request.Name, request.Size, request.HashFn );
array_append( array_asts, result );
}
Builder
arraygen;
arraygen.open( "table.gen.h" );
left = array_count( array_asts );
index = 0;
while( left-- )
{
Code code = array_asts[index];
arraygen.print( code );
}
arraygen.write();
return 0;
}
#endif
#ifndef gen_time
# include "table.gen.h"
#endif

40
test/c99/test.c99.c Normal file
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@ -0,0 +1,40 @@
#define GENC_IMPLEMENTATION
#include "genc.h"
#include "table.h"
struct Test
{
u64 A;
u64 B;
};
#if gen_time
u64 hash_struct( void* test )
{
return crc32( ((Test)test).A, sizeof(u64) );
}
int gen_main()
{
gen_table( Test, & hash_struct )
gen_table_file();
}
#endif
#if runtime
int main()
{
Table(Test) test_table;
}
#endif

6
test/math.hpp
View File

@ -25,7 +25,7 @@
#ifndef GEN_DEFINE_DSL
string name = string_sprintf( g_allocator, (char*)sprintf_buf, ZPL_PRINTF_MAXLEN, "square", type );
#if 1
#if 0
Code square;
{
Code params = def_params( 1, integral_type, "value" );
@ -43,9 +43,9 @@
return value * value;
}
);
char const* gen_code = token_fmt( tmpl, 1, type );
char const* gen_code = token_fmt( tmpl, 1, "type", type );
Code square = parse_proc(gen_code);
Code square = parse_proc(gen_code, strlen(gen_code));
#endif
#else

0
test/test.singleheader.cpp Normal file
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2
thirdparty/zpl.h vendored
View File

@ -5095,8 +5095,8 @@ License:
typedef struct string_header {
allocator allocator;
sw length;
sw capacity;
sw length;
} string_header;
#define ZPL_STRING_HEADER(str) (zpl_cast(ZPL_NS string_header *)(str) - 1)