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Still doesn't build, but desugaring is farther along

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This commit is contained in:
Meredith L. Patterson 2013-02-02 19:31:18 -05:00
parent 36e1f66de0
commit 156be7a559
16 changed files with 266 additions and 26 deletions
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16
src/parsers/choice.c
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@ -39,10 +39,26 @@ static bool choice_isValidCF(void *env) {
return true;
}
static HCFChoice* desugar_choice(HAllocator *mm__, void *env) {
HSequence *s = (HSequence*)env;
HCFChoice *ret = h_new(HCFChoice, 1);
ret->type = HCF_CHOICE;
ret->seq = h_new(HCFSequence*, 1+s->len);
for (size_t i=0; i<s->len; ++i) {
ret->seq[i] = h_new(HCFSequence, 1);
ret->seq[i]->items = h_new(HCFChoice*, 2);
ret->seq[i]->items[0] = s->p_array[i]->vtable->desugar(mm__, s->p_array[i]->env);
ret->seq[i]->items[1] = NULL;
}
ret->seq[s->len] = NULL;
return ret;
}
static const HParserVtable choice_vt = {
.parse = parse_choice,
.isValidRegular = choice_isValidRegular,
.isValidCF = choice_isValidCF,
.desugar = desugar_choice,
};
const HParser* h_choice(const HParser* p, ...) {