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

Implemented a bunch more desugaring

Browse source
This commit is contained in:
Dan Hirsch 2013-02-20 18:58:15 -05:00
parent 5ae267f3ed
commit 101e90ad9b
11 changed files with 51 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/parsers/butnot.c
View file

@ -35,20 +35,15 @@ static HParseResult* parse_butnot(void *env, HParseState *state) {
}
}
static bool bn_isValidCF(void *env) {
HTwoParsers *tp = (HTwoParsers*)env;
return (tp->p1->vtable->isValidCF(tp->p1->env) &&
tp->p2->vtable->isValidCF(tp->p2->env));
}
static HCFChoice* desugar_butnot(HAllocator *mm__, void *env) {
assert_message(0, "'h_butnot' is not context-free, can't be desugared");
return NULL;
}
static const HParserVtable butnot_vt = {
.parse = parse_butnot,
.isValidRegular = h_false,
.isValidCF = bn_isValidCF,
.isValidCF = h_false,
.desugar = desugar_butnot,
};