gencpp/test/Array.hpp

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/*
This is based of the array container implementation in the zpl.h library.
*/
#pragma once
#include "Bloat.hpp"
#include "gen.hpp"
#ifdef gen_time
using namespace gen;
Code gen__array_base()
{
// Make these global consts to be accessed anywhere...
Code t_sw = def_type( txt(sw) );
Code t_uw = def_type( txt(uw) );
Code t_allocator = def_type( txt(allocator) );
Code header;
{
Code num = def_variable( "Num", t_uw );
Code capacity = def_variable( "Capacity", t_uw );
Code allocator_var = def_variable( "Allocator", t_allocator );
Code header_body = def_struct_body( 3, num, capacity, allocator_var );
header = def_struct( "ArrayHeader", header_body );
}
Code grow_formula;
{
Code spec = def_specifiers(1, Specifier::Inline);
Code params = def_parameters(1, "value", t_uw );
Code body = untyped_fmt( "\t""return 2 * value * 8;" );
grow_formula = def_function( "grow_formula", spec, params, t_sw, body );
}
Code base_body = def_struct_body(2, header, grow_formula);
Code base = def_struct( "ArrayBase", base_body );
return base;
}
#define gen_array( Type_ ) gen__array( #Type_, sizeof(Type_), a_base )
Code gen__array( char const* type_str, s32 type_size, Code parent )
{
// Make these global consts to be accessed anywhere...
Code t_uw = def_type( txt(uw) );
Code t_sw = def_type( txt(sw) );
Code t_bool = def_type( txt(bool) );
Code t_allocator = def_type( txt(allocator) );
Code t_void = def_type( txt(void) );
Code v_nullptr = untyped_fmt( "nullptr" );
Code spec_ct = def_specifiers(1, Specifier::Constexpr );
Code spec_inline = def_specifiers(1, Specifier::Inline );
Code type = def_type( type_str );
Code ptr_type = def_type( string_sprintf_buf( g_allocator, "%s*", type_str ) );
Code ref_type = def_type( string_sprintf_buf( g_allocator, "%s&", type_str ) );
string name = string_sprintf_buf( g_allocator, "Array_%s", type_str );
// From ArrayBase
Code t_header = def_type( "Header" );
Code ptr_header = def_type( "Header*" );
Code ref_header = def_type( "Header&" );
Code array_def;
{
Code using_type = def_using( "type", type );
Code data = def_variable( "Data", ptr_type );
Code init;
{
Code params = def_parameters( 1, "mem_hanlder", t_allocator );
Code body = untyped_fmt( "\t""return init_reserve( mem_handler, grow_formula(0) );" );
init = def_function( "init", UnusedCode, params, t_bool, body );
}
Code init_reserve;
{
Code params = def_parameters( 2, "mem_handler", ref_type, "capacity", t_sw );
Code body;
{
Code header_value = untyped_fmt(
"rcast( Header*, alloc( mem_handler, sizeof( Header ) + sizeof(type) + capacity ))"
);
Code header = def_variable( "", ptr_header, header_value );
Code null_check = untyped_fmt(
"\t" "if (header == nullptr)"
"\n\t\t" "return false;"
);
Code header_init = untyped_fmt(
"\n\t" "header->Num = 0;"
"\n\t" "header->Capacity = capacity;"
"\n\t" "header->Allocator = mem_handler;"
);
Code assign_data = untyped_fmt(
"\t" "Data = rcast( %s, header + 1 );", ptr_type
);
Code ret_true = untyped_fmt( "\t""return true" );
body = def_function_body( 5
, header
, null_check
, header_init
, assign_data
, ret_true
);
}
init_reserve = def_function( "init_reserve", UnusedCode, params, t_bool, body );
}
Code free;
{
Code body = untyped_fmt(
"\t" "Header& header = get_header();"
"\n\t" "::free( header.Allocator, & get_header() );"
);
free = def_function( "free", UnusedCode, UnusedCode, t_void, body );
}
Code append;
{
Code params = def_parameters( 1, "value", type );
Code body;
{
Code header = def_variable( "", ref_header, untyped_fmt( "get_header()") );
Code check_cap = untyped_fmt(
"\t" "if ( header.Capacity < header.Num + 1 )"
"\n\t\t" "if ( ! grow(0) )"
"\n\t\t\t" "return false;"
);
Code assign = untyped_fmt(
"\t" "Data[ header.Num ] = value;"
"\t\n" "header.Num++;"
"\n"
"\n\t" "return true;"
);
body = def_function_body( 3, header, check_cap, assign );
}
append = def_function( "append", UnusedCode, params, t_void, body );
}
Code back;
{
Code body = untyped_fmt(
"\t" "Header& header = get_header();"
"\n\t" "return data[ header.Num - 1 ];"
);
back = def_function( "back", UnusedCode, UnusedCode, type, body );
}
Code clear;
{
Code body = untyped_fmt( "\t""get_header().Num = 0;" );
clear = def_function( "clear", UnusedCode, UnusedCode, t_void, body );
}
Code fill;
{
Code params = def_parameters( 3, "begin", t_uw, "end", t_uw, "value", type );
Code body;
{
Code header = def_variable( "", ref_header, untyped_fmt( "get_header()") );
Code check = untyped_fmt(
"\t" "if ( begin < 0 || end >= header.Num )"
"\n\t\t" "fatal( \"Range out of bounds\" );"
);
Code iter = untyped_fmt(
"\t" "for ( sw index = begin; index < end; index++ )"
"\n\t\t" "Data[index] = vallue;"
);
body = def_function_body( 3, header, check, iter );
}
fill = def_function( "fill", UnusedCode, params, t_void, body );
}
Code get_header;
{
Code body = untyped_fmt( "\t""return pcast( Header, Data - 1 );" );
get_header = def_function( "get_header", spec_inline, UnusedCode, ref_header, body );
}
Code grow;
{
Code param = def_parameters( 1, "min_capacity", t_uw );
Code body;
{
Code header = def_variable( "header", ref_header, untyped_fmt("get_header") );
Code new_capacity = def_variable( "new_capacity", t_uw, untyped_fmt("grow_formula( header.Capacity )") );
Code check_n_set = untyped_fmt(
"\t" "if ( new_capacity < min_capacity )"
"\n\t\t" "new_capacity = min_capacity;"
);
Code ret = untyped_fmt( "\t" "return set_capacity( new_capacity );" );
body = def_function_body( 4, header, new_capacity, check_n_set, ret );
}
grow = def_function( "grow", UnusedCode, param, t_bool, body );
}
Code pop;
{
Code body;
{
Code header = def_variable( "header", ref_header, untyped_fmt("get_header()") );
Code assertion = untyped_fmt( "\t" "assert( header.Num > 0 );" );
Code decrement = untyped_fmt( "\t" "header.Num--; " );
body = def_function_body( 3, header, assertion, decrement );
}
pop = def_function( "pop", UnusedCode, UnusedCode, t_void, body );
}
Code reserve;
{
Code params = def_parameters( 1, "new_capacity", t_uw );
Code body;
{
Code header = def_variable( "header", ref_header, untyped_fmt("get_header()") );
Code check_n_set = untyped_fmt(
"\t" "if ( header.Capacity < new_capacity )"
"\n\t\t" "return set_capacity( new_capacity );"
);
Code ret = untyped_fmt( "\t" "return true" );
body = def_function_body( 3, header, check_n_set, ret );
}
reserve = def_function( "reserve", UnusedCode, params, t_bool, body );
}
Code resize;
{
Code param = def_parameters( 1, "new_num", t_uw );
Code body;
{
Code header = def_variable( "header", ref_header, untyped_fmt("get_header()") );
Code check_n_grow = untyped_fmt(
"\t" "if ( header.Capacity < new_num )"
"\n\t\t" "if ( ! grow( new_num) )"
"\n\t\t\t" "return false;"
);
Code set_n_ret = untyped_fmt(
"\t" "header.Count = new_num;"
"\n\t" "return true;"
);
body = def_function_body( 3, header, check_n_grow, set_n_ret );
}
resize = def_function( "resize", UnusedCode, param, t_bool, body );
}
Code set_capacity;
{
Code param = def_parameters( 1, "capacity", t_uw );
Code body;
{
Code header = def_variable( "header", ref_header, untyped_fmt("get_header()") );
Code checks = untyped_fmt(
"\t" "if ( capacity == header.Capacity )"
"\n\t\t" "return true;"
"\n"
"\n\t" "if ( capacity < header.Num )"
"\n\t\t" "header.Num = capacity;"
);
Code size = def_variable( "size", t_uw, untyped_fmt("sizeof(Header) + sizeof(type) * capacity"));
Code new_header = def_variable( "new_header", ptr_header, untyped_fmt("rcast( Header*, alloc( header.Allocator, size ));"));
Code check_n_move = untyped_fmt(
"\t""if ( new_header == nullptr )"
"\n\t\t""return false;"
"\n"
"\n\t""memmove( new_header, & header, sizeof(Header) + sizeof(type) * header.Num );"
);
Code set_free_ret = untyped_fmt(
"\t" "new_header->Allocator = header.Allocator;"
"\n\t" "new_header->Num = header.Num;"
"\n\t" "new_header->Capacity = header.Capacity;"
"\n"
"\n\t" "zpl_free( header );"
"\n"
"\n\t" "*Data = new_header + 1;"
"\n"
"\n\t" "return true;"
);
body = def_function_body( 6, header, checks, size, new_header, check_n_move, set_free_ret );
}
set_capacity = def_function( "set_capacity", UnusedCode, param, t_bool, body );
}
Code body = def_struct_body( 15
, using_type
, data
, init
, init_reserve
, append
, back
, clear
, fill
, free
, get_header
, grow
, pop
, reserve
, resize
, set_capacity
);
array_def = def_struct( name, body, parent );
}
return array_def;
}
u32 gen_array_file()
{
Code a_base = gen__array_base();
Code a_u32 = gen_array( u32 );
Code a_cstr = gen_array( char const* );
Builder
arraygen;
arraygen.open( "Array.gen.hpp" );
arraygen.print( a_u32 );
arraygen.print( a_cstr );
arraygen.write();
return 0;
}
#endif
#ifndef gen_time
# include "Array.gen.hpp"
# define array( Type_ ) array_##Type_
#endif