FUNCTIONS

   1 #if !defined _EXPRESS_H_
   2 #define _EXPRESS_H_
   3 
   4 #include "lang_dep.h"
   5 #include "name.h"
   6 
   7 typedef struct exp_node_ exp_node;
   8 
   9 typedef enum exp_type_ {
  10   EXP_ISEQ,
  11   EXP_ISNOTEQ,
  12   EXP_ISLT,
  13   EXP_ISGT,
  14   EXP_ISLTEQ,
  15   EXP_ISGTEQ,
  16   EXP_ADD,
  17   EXP_SUB,
  18   EXP_OR,
  19   EXP_MUL,
  20   EXP_DIV,
  21   EXP_MOD,
  22   EXP_LSL,
  23   EXP_ASR,
  24   EXP_LSR,
  25   EXP_AND,
  26   EXP_NOT,
  27   EXP_PLUS,
  28   EXP_MINUS,
  29   EXP_CONST,
  30   EXP_VAR
  31 } exp_type;
  32 
  33 struct exp_node_ {
  34   exp_type type;
  35   union {
  36     struct {
  37       exp_node *_0;
  38       exp_node *_1;
  39     } _2;
  40     struct {
  41       exp_node *_0;
  42     } _1;
  43     zinc_word constval;
  44     name_info *var;
  45   } val;
  46 };
  47 
  48 #endif /* _EXPRESS_H_ */