hammer/src/parsers/indirect.c

32 lines
838 B
C

#include "parser_internal.h"
static HParseResult* parse_indirect(void* env, HParseState* state) {
return h_do_parse(env, state);
}
static bool indirect_isValidCF(void *env) {
HParser *p = (HParser*)env;
HParser *inner = (HParser*)p->env;
return inner->vtable->isValidCF(inner->env);
}
static const HParserVtable indirect_vt = {
.parse = parse_indirect,
.isValidRegular = h_false,
.isValidCF = indirect_isValidCF,
};
void h_bind_indirect(HParser* indirect, const HParser* inner) {
assert_message(indirect->vtable == &indirect_vt, "You can only bind an indirect parser");
indirect->env = (void*)inner;
}
HParser* h_indirect() {
return h_indirect__m(&system_allocator);
}
HParser* h_indirect__m(HAllocator* mm__) {
HParser *res = h_new(HParser, 1);
res->vtable = &indirect_vt;
res->env = NULL;
return res;
}