minishell/output/src/vec/ast/ast_functions4.c
2024-10-12 17:54:07 +02:00

74 lines
2.5 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ast_functions4.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/12/30 17:59:28 by maiboyer #+# #+# */
/* Updated: 2024/10/12 17:51:40 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/types.h"
#include "me/vec/vec_ast.h"
#include <stdlib.h>
t_ast_node *vec_ast_get(t_vec_ast *vec, t_usize i)
{
if (vec == NULL || vec->buffer == NULL)
return (NULL);
if (i < vec->len)
return (&vec->buffer[i]);
return (NULL);
}
t_ast_node *vec_ast_last(t_vec_ast *vec)
{
if (vec == NULL || vec->len == 0)
return (NULL);
return (&vec->buffer[vec->len - 1]);
}
void vec_ast_copy_into(t_vec_ast *vec, t_vec_ast *dest)
{
if (vec == NULL || dest == NULL)
return ;
vec_ast_reserve(dest, vec->capacity);
mem_copy(dest->buffer, vec->buffer, vec->len * sizeof(t_ast_node));
}
struct s_vec_ast_splice_arguments vec_ast_splice_args(t_usize index,
t_usize old_count, t_usize new_count, const t_ast_node *elements)
{
return ((struct s_vec_ast_splice_arguments){index, old_count, new_count,
elements});
}
void vec_ast_splice(t_vec_ast *self, struct s_vec_ast_splice_arguments args)
{
t_ast_node *contents;
t_u32 new_size;
t_u32 old_end;
t_u32 new_end;
new_size = self->len + args.new_count - args.old_count;
old_end = args.index + args.old_count;
new_end = args.index + args.new_count;
vec_ast_reserve(self, new_size);
contents = self->buffer;
if (self->len > old_end)
mem_move(contents + new_end, contents + old_end, (self->len - old_end)
* sizeof(t_ast_node));
if (args.new_count > 0)
{
if (args.elements)
mem_copy((contents + args.index * sizeof(t_ast_node)),
args.elements, args.new_count * sizeof(t_ast_node));
else
mem_set_zero((contents + args.index * sizeof(t_ast_node)),
args.new_count * sizeof(t_ast_node));
}
self->len += args.new_count - args.old_count;
}