#ifndef __TREE_H
#define __TREE_H

#define TREENULL (struct treenode *)NULL
#define TREESIZE (sizeof(struct treenode))
#define TREECAST struct treenode *

#ifndef BFEHAX
typedef struct burm_state *STATEPTR_TYPE;
#endif

enum {
	O_RET=1,
	O_NOT,
	O_SUB,
	O_MUL,
	O_OR,
	O_LESS,
	O_EQ,
	O_ID
};

static char *o_names[] = {
	"",
	"O_RET",
	"O_NOT",
	"O_SUB",
	"O_MUL",
	"O_OR",
	"O_LESS",
	"O_EQ",
	"O_ID"
};

struct treenode {
	int op;
	struct treenode *kids[2];
	STATEPTR_TYPE label;
	char *name;
	long val;
	char *reg;
	struct treenode *parent;
	int skip;
	int param_index;
};

typedef struct treenode *treenodep;

#define NODEPTR_TYPE treenodep
#define OP_LABEL(p) ((p)->op)
#define LEFT_CHILD(p) ((p)->kids[0])
#define RIGHT_CHILD(p) ((p)->kids[1])
#define STATE_LABEL(p) ((p)->label)
#define PANIC printf

struct treenode *new_node(int op, struct treenode *l, struct treenode *r);

#endif