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brought over the generators of array and hashtable for c-lib gen

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From the old genc repo. Still need to fully check that its code is up to date
This commit is contained in:
Edward R. Gonzalez
2024-12-01 01:40:14 -05:00
parent 0b4ccac8f9
commit a96d03eaed
2 changed files with 649 additions and 0 deletions
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295
gen_c_library/components/containers.array.hpp Normal file
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#pragma once
#include "../project/gen.hpp"
using namespace gen;
CodeBody gen_array_base()
{
CodeTypedef td_header = parse_typedef( code( typedef struct ArrayHeader ArrayHeader; ));
CodeStruct header = parse_struct( code(
struct ArrayHeader
{
AllocatorInfo Allocator;
usize Capacity;
usize Num;
};
));
// Code grow_formula = untyped_str( txt( "#define gen_array_grow_formula( value ) ( 2 * value + 8 )\n" ));
Code get_header = untyped_str( txt( "#define array_get_header( Type, self ) ( (ArrayHeader*)( self ) - 1)\n" ));
return def_global_body( args( td_header, header, get_header ) );
};
CodeBody gen_array( StrC type, StrC array_name )
{
String array_type = String::fmt_buf( GlobalAllocator, "%.*s", array_name.Len, array_name.Ptr );
String fn = String::fmt_buf( GlobalAllocator, "%.*s", array_name.Len, array_name.Ptr );
str_to_lower(fn.Data);
#pragma push_macro( "GEN_ASSERT" )
#undef GEN_ASSERT
CodeBody result = parse_global_body( token_fmt( "array_type", (StrC)array_type, "fn", (StrC)fn, "type", (StrC)type
, stringize(
typedef <type>* <array_type>;
<array_type> <fn>_init ( AllocatorInfo allocator );
<array_type> <fn>_init_reserve ( AllocatorInfo allocator, usize capacity );
bool <fn>_append ( <array_type>* self, <type> value );
bool <fn>_append_items ( <array_type>* self, <type>* items, usize item_num );
bool <fn>_append_at ( <array_type>* self, <type> item, usize idx );
bool <fn>_append_items_at( <array_type>* self, <type>* items, usize item_num, usize idx );
<type>* <fn>_back ( <array_type> self );
void <fn>_clear ( <array_type> self );
bool <fn>_fill ( <array_type> self, usize begin, usize end, <type> value );
void <fn>_free ( <array_type> self );
bool <fn>_grow ( <array_type>* self, usize min_capacity );
usize <fn>_num ( <array_type> self );
<type> <fn>_pop ( <array_type> self );
bool <fn>_reserve ( <array_type>* self, usize new_capacity );
bool <fn>_resize ( <array_type>* self, usize num );
bool <fn>_set_capacity ( <array_type>* self, usize new_capacity );
<array_type> <fn>_init( AllocatorInfo allocator )
{
return <fn>_init_reserve( allocator, array_grow_formula( 0 ) );
}
<array_type> <fn>_init_reserve( AllocatorInfo allocator, usize capacity )
{
ArrayHeader* header = cast(ArrayHeader*, alloc( allocator, sizeof(ArrayHeader) + sizeof(<type>) * capacity ) );
if ( header == NULL )
return NULL;
header->Allocator = allocator;
header->Capacity = capacity;
header->Num = 0;
return cast( <type>*, header + 1 );
}
bool <fn>_append( <array_type>* self, <type> value )
{
ArrayHeader* header = get_header( * self );
if ( header->Num == header->Capacity )
{
if ( ! <fn>_grow( self, header->Capacity))
return false;
header = get_header( * self );
}
(* self)[ header->Num ] = value;
header->Num++;
return true;
}
bool <fn>_append_items( <array_type>* self, <type>* items, usize item_num )
{
ArrayHeader* header = get_header( * self );
if ( header->Num + item_num > header->Capacity )
{
if ( ! <fn>_grow( self, header->Capacity + item_num ))
return false;
header = get_header( * self );
}
mem_copy( (* self) + header->Num, items, sizeof(<type>) * item_num );
header->Num += item_num;
return true;
}
bool <fn>_append_at( <array_type>* self, <type> item, usize idx )
{
ArrayHeader* header = get_header( * self );
if ( idx >= header->Num )
idx = header->Num - 1;
if ( idx < 0 )
idx = 0;
if ( header->Capacity < header->Num + 1 )
{
if ( ! <fn>_grow( self, header->Capacity + 1 ) )
return false;
header = get_header( * self );
}
<array_type> target = (* self) + idx;
mem_move( target + 1, target, (header->Num - idx) * sizeof(<type>) );
header->Num++;
return true;
}
bool <fn>_append_items_at( <array_type>* self, <type>* items, usize item_num, usize idx )
{
ArrayHeader* header = get_header( * self );
if ( idx >= header->Num )
{
return <fn>_append_items( self, items, item_num );
}
if ( item_num > header->Capacity )
{
if ( ! <fn>_grow( self, item_num + header->Capacity ) )
return false;
header = get_header( * self );
}
<type>* target = (* self) + idx + item_num;
<type>* src = (* self) + idx;
mem_move( target, src, (header->Num - idx) * sizeof(<type>) );
mem_copy( src, items, item_num * sizeof(<type>) );
header->Num += item_num;
return true;
}
<type>* <fn>_back( <array_type> self )
{
ArrayHeader* header = get_header( self );
if ( header->Num == 0 )
return NULL;
return self + header->Num - 1;
}
void <fn>_clear( <array_type> self )
{
ArrayHeader* header = get_header( self );
header->Num = 0;
}
bool <fn>_fill( <array_type> self, usize begin, usize end, <type> value )
{
ArrayHeader* header = get_header( self );
if ( begin < 0 || end >= header->Num )
return false;
for ( ssize idx = begin; idx < end; idx ++ )
self[ idx ] = value;
return true;
}
void <fn>_free( <array_type> self )
{
ArrayHeader* header = get_header( self );
free( header->Allocator, header );
self = NULL;
}
bool <fn>_grow( <array_type>* self, usize min_capacity )
{
ArrayHeader* header = get_header( *self );
usize new_capacity = array_grow_formula( header->Capacity );
if ( new_capacity < min_capacity )
new_capacity = min_capacity;
return <fn>_set_capacity( self, new_capacity );
}
usize <fn>_num( <array_type> self )
{
return get_header(self)->Num;
}
<type> <fn>_pop( <array_type> self )
{
ArrayHeader* header = get_header( self );
GEN_ASSERT( header->Num > 0 );
<type> result = self[ header->Num - 1 ];
header->Num--;
return result;
}
void <fn>_remove_at( <array_type> self, usize idx )
{
ArrayHeader* header = get_header( self );
GEN_ASSERT( idx < header->Num );
mem_move( self + idx, self + idx + 1, sizeof( <type> ) * ( header->Num - idx - 1 ) );
header->Num--;
}
bool <fn>_reserve( <array_type>* self, usize new_capacity )
{
ArrayHeader* header = get_header( * self );
if ( header->Capacity < new_capacity )
return <fn>_set_capacity( self, new_capacity );
return true;
}
bool <fn>_resize( <array_type>* self, usize num )
{
ArrayHeader* header = get_header( * self );
if ( header->Capacity < num )
{
if ( ! <fn>_grow( self, num ) )
return false;
header = get_header( * self );
}
header->Num = num;
return true;
}
bool <fn>_set_capacity( <array_type>* self, usize new_capacity )
{
ArrayHeader* header = get_header( * self );
if ( new_capacity == header->Capacity )
return true;
if ( new_capacity < header->Num )
header->Num = new_capacity;
usize size = sizeof( ArrayHeader ) + sizeof( <type> ) * new_capacity;
ArrayHeader* new_header = cast( ArrayHeader*, alloc( header->Allocator, size ));
if ( new_header == NULL )
return false;
mem_move( new_header, header, sizeof( ArrayHeader ) + sizeof( <type> ) * header->Num );
free( header->Allocator, & header );
new_header->Capacity = new_capacity;
* self = cast( <type>*, new_header + 1 );
return true;
}
)));
#pragma pop_macro( "GEN_ASSERT" )
return def_global_body( args(
def_pragma( to_str( str_fmt_buf( "region %S", array_type ))),
fmt_newline,
result,
fmt_newline,
def_pragma( to_str( str_fmt_buf( "endregion %S", array_type ))),
fmt_newline
));
};
// CodeBody gen_