35 lines
806 B
C
35 lines
806 B
C
#include "ast.h"
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#include <stdbool.h>
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void ast_free(struct ast **node)
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{
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if (*node == NULL)
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return;
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// ast void does not need to be freed.
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if (ast_is_if(*node))
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ast_free_if(ast_get_if(*node));
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else if (ast_is_command(*node))
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ast_free_command(ast_get_command(*node));
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else if (ast_is_list(*node))
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ast_free_list(ast_get_list(*node));
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else if (ast_is_and_or(*node))
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ast_free_and_or(ast_get_and_or(*node));
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else if (ast_is_redir(*node))
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ast_free_redir(ast_get_redir(*node));
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free(*node);
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*node = NULL;
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}
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struct ast *ast_create(enum ast_type type, void *data)
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{
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struct ast *node = malloc(sizeof(struct ast));
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if (node == NULL)
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return NULL;
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node->type = type;
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node->data = data;
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return node;
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}
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