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#ifndef CERC_EXPR_H
#define CERC_EXPR_H
#include <stdbool.h>
#include "lex.h"
#include "literal.h"
#include "type.h"
enum valuekind {
V_LITERAL,
V_NAME,
};
struct value_e {
enum valuekind kind;
union {
struct literal lit;
const char *name;
} v;
};
struct grp_e {
int isgrouped;
union {
struct expr *grouped;
struct value_e value;
} inner;
};
struct call_e {
struct expr *args;
int argsz, arglen;
};
enum access {
AC_NONE,
AC_FIELD,
AC_INDEX,
AC_CALL,
};
struct access_e {
struct grp_e grp;
enum access kind;
union {
const char *field;
struct expr *index;
struct call_e call;
} ac;
struct access_e *next;
};
struct tag_e {
int dotagof;
struct access_e access;
};
enum signop {
SIGN_NONE,
SIGN_POS,
SIGN_NEG,
};
struct sign_e {
enum signop op;
struct tag_e tag;
};
enum invop {
INV_NONE,
INV_BITS,
INV_BOOL,
};
struct inv_e {
enum invop op;
union {
struct inv_e *inv;
struct sign_e sign;
} oper;
};
struct deref_e {
int doderef;
union {
struct deref_e *deref;
struct inv_e inv;
} inner;
};
struct ref_e {
int doref;
struct deref_e inner;
};
struct as_e {
struct ref_e lhs;
struct type *cast;
};
struct bitand_e {
struct as_e lhs;
struct bitand_e *rhs;
};
struct bitxor_e {
struct bitand_e lhs;
struct bitxor_e *rhs;
};
struct bitor_e {
struct bitxor_e lhs;
struct bitor_e *rhs;
};
enum productop {
PRODUCT_NONE,
PRODUCT_MUL,
PRODUCT_DIV,
PRODUCT_REM,
};
struct product_e {
struct bitor_e lhs;
enum productop op;
struct product_e *rhs;
};
enum sumop {
SUM_NONE,
SUM_ADD,
SUM_SUB,
};
struct sum_e {
struct product_e lhs;
enum sumop op;
struct sum_e *rhs;
};
enum shiftop {
SHIFT_NONE,
SHIFT_LEFT,
SHIFT_RIGHT,
};
struct shift_e {
struct sum_e lhs;
enum shiftop op;
struct shift_e *rhs;
};
enum cmpop {
CMP_NONE,
CMP_LESS,
CMP_LESS_EQ,
CMP_EQ,
CMP_NEQ,
CMP_GREATER_EQ,
CMP_GREATER,
};
struct cmp_e {
struct shift_e lhs;
enum cmpop op;
struct shift_e *rhs;
};
struct conjunction_e {
struct cmp_e lhs;
struct conjunction_e *rhs;
};
struct expr {
struct conjunction_e lhs;
struct expr *rhs;
};
#endif
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