52 lines
921 B
C
52 lines
921 B
C
static void dumpCover(NODEPTR_TYPE p, int goalnt, int indent) {
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#ifdef TRACE
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int eruleno = burm_rule(STATE_LABEL(p), goalnt);
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const short *nts = burm_nts[eruleno];
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NODEPTR_TYPE kids[10];
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int i;
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for (i = 0; i < indent; i++)
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fprintf(stderr, " ");
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fprintf(stderr, "%s\n", burm_string[eruleno]);
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burm_kids(p, eruleno, kids);
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for (i = 0; nts[i]; i++)
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{
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if (kids[i])
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dumpCover(kids[i], nts[i], indent + 1);
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else
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fprintf(stderr, "failed!\n");
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}
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#endif
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}
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static NODEPTR_TYPE tree(int op, NODEPTR_TYPE l, NODEPTR_TYPE r) {
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NODEPTR_TYPE p = malloc(sizeof *p);
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assert(p);
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p->op = op;
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p->kids[0] = l; p->kids[1] = r;
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return p;
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}
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int main(void) {
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NODEPTR_TYPE p;
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p = tree(STORE4,
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tree(ADD4,
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tree(LABEL4, 0, 0),
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tree(CONST4, 0, 0)
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),
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tree(ADD4,
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tree(LOAD4,
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tree(LABEL4, 0, 0),
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0
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),
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tree(CONST4, 0, 0)
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)
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);
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burm_label(p);
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dumpCover(p, 1, 0);
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return 0;
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}
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