hammer/examples/glue.h

55 lines
1.8 KiB
C

#ifndef HAMMER_EXAMPLES_GLUE__H
#define HAMMER_EXAMPLES_GLUE__H
#include <assert.h>
#include "../src/hammer.h"
///
// API Additions
///
#define H_RULE(rule, def) const HParser *rule = def
#define H_ARULE(rule, def) const HParser *rule = h_action(def, act_ ## rule)
#define H_VRULE(rule, def) const HParser *rule = \
h_attr_bool(def, validate_ ## rule)
#define H_VARULE(rule, def) const HParser *rule = \
h_attr_bool(h_action(def, act_ ## rule), validate_ ## rule)
#define H_AVRULE(rule, def) const HParser *rule = \
h_action(h_attr_bool(def, validate_ ## rule), act_ ## rule)
const HParsedToken *h_act_ignore(const HParseResult *p);
const HParsedToken *h_act_index(int i, const HParseResult *p);
const HParsedToken *h_act_flatten(const HParseResult *p);
// Define 'myaction' as a specialization of 'paction' by supplying the leading
// parameters.
#define H_ACT_APPLY(myaction, paction, ...) \
const HParsedToken *myaction(const HParseResult *p) { \
return paction(__VA_ARGS__, p); \
}
const HParsedToken *h_token_flatten(HArena *arena, const HParsedToken *p);
void h_seq_snoc(HParsedToken *xs, const HParsedToken *x);
void h_seq_append(HParsedToken *xs, const HParsedToken *ys);
HParsedToken *h_make_token(HArena *arena, HTokenType type, void *value);
HParsedToken *h_make_token_seq(HArena *arena);
#define H_MAKE(TYP) \
((TYP *) h_arena_malloc(p->arena, sizeof(TYP)))
#define H_MAKE_TOKEN(TYP, VAL) \
h_make_token(p->arena, TT_ ## TYP, VAL)
HParsedToken *h_carray_index(const HCountedArray *a, size_t i);
HParsedToken *h_seq_index(const HParsedToken *p, size_t i);
void *h_seq_index_user(HTokenType type, const HParsedToken *p, size_t i);
#define H_SEQ_INDEX(TYP, SEQ, IDX) \
((TYP *) h_seq_index_user(TT_ ## TYP, SEQ, IDX))
#define H_FIELD(TYP, IDX) \
H_SEQ_INDEX(TYP, p->ast, IDX)
#endif