path: root/ast.c

#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include "ast.h"
#include "cibic.tab.h"
#define NEW_CNODE ((CNode *)malloc(sizeof(CNode)))

CNode *ast_root;

void cnode_reverse_chd(CNode *node) {
    static CNode *chdn[MAX_CHDN];
    CNode *p;
    int n = 0;
    for (p = node->chd; p; p = p->next)
        cnode_reverse_chd(p);
    for (p = node->chd; p; p = p->next)
        chdn[n++] = p;
    if (n)
    {
        node->chd = chdn[--n];
        for (; n; n--)
            chdn[n]->next = chdn[n - 1];
        chdn[0]->next = NULL;
    }
}

CNode *cnode_create_ast(CNode *wrapped) {
    cnode_reverse_chd(wrapped);
    return wrapped;
}

CNode *cnode_create_nop()