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// Copyright (c) 2024, Marvin Borner <dev@marvinborner.de>
// SPDX-License-Identifier: MIT
#ifndef BLOCADE_TERM_H
#define BLOCADE_TERM_H
#include <stddef.h>
typedef enum { INV, ABS, APP, VAR, REF } term_type;
struct term {
term_type type;
union {
struct {
struct term *term;
} abs;
struct {
struct term *lhs;
struct term *rhs;
} app;
struct {
int index;
} var;
struct {
size_t index;
} ref;
} u;
unsigned int meta; // arbitrary field for targets
};
struct term *new_term(term_type type);
void free_term(struct term *term);
#endif
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