emileclarkb/hammer
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

why does this (test_llk) segfault!? driver goes into a loop.

Browse source
This commit is contained in:
Sven M. Hallberg 2013-05-24 04:33:27 +02:00
parent c6d3bc7fd5
commit bd9f9293c1
1 changed files with 10 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

15
src/backends/llk.c
View file

@ -198,9 +198,14 @@ static int fill_table_row(size_t kmax, HCFGrammar *g, HCFStringMap *row,
h_pprint_symbol(stdout, g, A);
printf(") = ");
h_pprint_stringset(stdout, row, 0);
if(h_stringmap_get(row, (uint8_t *)"a", 1, false)) {
printf(" a -> ");
h_pprint_sequence(stdout, g, h_stringmap_get(row, (uint8_t *)"a", 1, false));
printf("\n");
}
// switch to the updated workset
h_hashtable_free(workset);
h_hashset_free(workset);
workset = nextset;
// if the workset is empty, row is without conflict; we're done
@ -452,9 +457,9 @@ int test_llk(void)
*/
HParser *X = h_optional(h_ch('x'));
HParser *Y = h_sequence(h_ch('y'), NULL);
HParser *A = h_sequence(X, Y, h_ch('a'), NULL);
HParser *B = h_sequence(Y, h_ch('b'), NULL);
//HParser *Y = h_epsilon_p(); //h_sequence(h_ch('y'), NULL);
HParser *A = h_sequence(X, h_ch('a'), NULL);
HParser *B = h_sequence(h_ch('b'), NULL);
HParser *p = h_choice(A, B, NULL);
HCFGrammar *g = h_cfgrammar(&system_allocator, p);
@ -477,7 +482,7 @@ int test_llk(void)
return 2;
}
HParseResult *res = h_parse(p, (uint8_t *)"xa", 2);
HParseResult *res = h_parse(p, (uint8_t *)"ab", 2);
if(res)
h_pprint(stdout, res->ast, 0, 2);
else