blob: 1f96b8e36249ec2ff7fe503410043a3ab65059ad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ast.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/04/01 17:05:42 by charles #+# #+# */
/* Updated: 2020/06/14 20:22:26 by charles ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file ast.c
** \brief AST functions
*/
#include "ast.h"
/*
** \brief Create a new AST node according to `tag`
** \param tag Tag of node
** \return Created node or NULL on error
*/
t_ast *ast_new(enum e_ast_tag tag)
{
t_ast *ast;
if ((ast = (t_ast*)malloc(sizeof(t_ast))) == NULL)
return (NULL);
ast->tag = tag;
ast->redirs = NULL;
ast->line.left = NULL;
ast->line.right = NULL;
ast->cmd_argv = NULL;
return (ast);
}
/*
** \brief Destroy an AST node and all his child nodes
** \param ast AST to destroy
*/
void ast_destroy(t_ast *ast)
{
if (ast == NULL)
return ;
ft_lstdestroy(&ast->cmd_argv, (void (*)(void*))token_destroy);
if (ast->tag == AST_CMD)
ft_lstdestroy(&ast->redirs, (void (*)(void*))token_destroy);
else if (ast->tag == AST_LINE)
{
ast_destroy(ast->line.left);
ast_destroy(ast->line.right);
}
free(ast);
}
|
