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#ifndef AST_HEADER
#define AST_HEADER
#include <stdbool.h>
#include <stdint.h>
#define CEQ 0x10
#define CNEQ CEQ ^ 0x80
#define CGT 0x20
#define CLT 0x30
#define CLEQ CGT ^ 0x80
#define CGEQ CLT ^ 0x80
enum ntype { TSTM_LIST, TIF, TFOR, TIDENT, TWHILE };
typedef struct cond {
uint8_t cmp;
char *a;
char *b;
} cond_t;
typedef struct ast_node {
enum ntype t;
// Dependent on type
union {
struct {
cond_t *condition;
struct ast_node *iftrue;
struct ast_node *iffalse;
} flowctrl;
struct {
cond_t *condition;
char *pre;
char *inc;
struct ast_node *stuff;
} forloop;
char *ident;
struct {
struct ast_node *children[2];
} list;
};
} ast_node_t;
ast_node_t *insert_ctrl(enum ntype t, cond_t *c, ast_node_t *iftrue,
ast_node_t *iffalse);
ast_node_t *insert_stm(ast_node_t *stm, ast_node_t *stm_list);
ast_node_t *insert_ident(char *ident);
ast_node_t *insert_for(char *pre, cond_t *c, char *inc, ast_node_t *stuff);
cond_t *insert_cond(uint8_t cmp, char *a, char *b);
void node_print(ast_node_t *node);
#endif
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