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userdata in AST #31

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userdata in AST #31

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1cb706f
userdata in AST
mattn Jun 1, 2015
519537d
reset data/free
mattn Jun 1, 2015
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4 changes: 4 additions & 0 deletions mpc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2512,6 +2512,7 @@ void mpc_ast_delete(mpc_ast_t *a) {
mpc_ast_delete(a->children[i]);
}

if (a->free) a->free(a->data);
free(a->children);
free(a->tag);
free(a->contents);
Expand All @@ -2520,6 +2521,7 @@ void mpc_ast_delete(mpc_ast_t *a) {
}

static void mpc_ast_delete_no_children(mpc_ast_t *a) {
if (a->free) a->free(a->data);
free(a->children);
free(a->tag);
free(a->contents);
Expand All @@ -2540,6 +2542,8 @@ mpc_ast_t *mpc_ast_new(const char *tag, const char *contents) {

a->children_num = 0;
a->children = NULL;
a->data = NULL;
a->free = NULL;
return a;

}
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2 changes: 2 additions & 0 deletions mpc.h
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Expand Up @@ -258,6 +258,8 @@ mpc_parser_t *mpc_re(const char *re);
typedef struct mpc_ast_t {
char *tag;
char *contents;
void *data;
void (*free)(void*);
mpc_state_t state;
int children_num;
struct mpc_ast_t** children;
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