git.m6w6.name Git - m6w6/ext-psi/blob - src/token.h

   1 #ifndef _PSI_TOKEN_H
   2 #define _PSI_TOKEN_H
   3
   4 #include <stddef.h>
   5 #include <stdarg.h>
   6 #include <stdint.h>
   7 #include <assert.h>
   8
   9 #include "parser_proc.h"
  10
  11 #define PSI_T_POINTER PSI_T_ASTERISK
  12 #define PSI_T_LONG_DOUBLE (PSI_T_DOUBLE << 16)
  13
  14 typedef int token_t;
  15
  16 static inline size_t psi_t_alignment(token_t t)
  17 {
  18 #define PSI_ALIGNOF(T) case PSI_T_## T: return ALIGNOF_## T ##_T;
  19         switch (t) {
  20         PSI_ALIGNOF(INT8);
  21         PSI_ALIGNOF(UINT8);
  22         PSI_ALIGNOF(INT16);
  23         PSI_ALIGNOF(UINT16);
  24         PSI_ALIGNOF(INT32);
  25         PSI_ALIGNOF(UINT32);
  26         PSI_ALIGNOF(INT64);
  27         PSI_ALIGNOF(UINT64);
  28         case PSI_T_FLOAT:
  29                 return ALIGNOF_FLOAT;
  30         case PSI_T_DOUBLE:
  31                 return ALIGNOF_DOUBLE;
  32         case PSI_T_POINTER:
  33         case PSI_T_FUNCTION:
  34                 return ALIGNOF_VOID_P;
  35         case PSI_T_ENUM:
  36                 return ALIGNOF_INT;
  37         default:
  38                 assert(0);
  39         }
  40         return 0;
  41 }
  42
  43 static inline size_t psi_t_size(token_t t)
  44 {
  45 #define PSI_SIZEOF(T) case PSI_T_## T : return SIZEOF_## T ##_T;
  46         switch (t) {
  47         PSI_SIZEOF(INT8);
  48         PSI_SIZEOF(UINT8);
  49         PSI_SIZEOF(INT16);
  50         PSI_SIZEOF(UINT16);
  51         PSI_SIZEOF(INT32);
  52         PSI_SIZEOF(UINT32);
  53         PSI_SIZEOF(INT64);
  54         PSI_SIZEOF(UINT64);
  55         case PSI_T_FLOAT:
  56                 return SIZEOF_FLOAT;
  57         case PSI_T_DOUBLE:
  58                 return SIZEOF_DOUBLE;
  59         case PSI_T_POINTER:
  60         case PSI_T_FUNCTION:
  61                 return SIZEOF_VOID_P;
  62         case PSI_T_ENUM:
  63                 return SIZEOF_INT;
  64         default:
  65                 assert(0);
  66         }
  67         return 0;
  68 }
  69
  70 struct psi_token {
  71         token_t type;
  72         unsigned size, line, col;
  73         char *text, *file;
  74         char buf[1];
  75 };
  76
  77 struct psi_parser;
  78
  79 struct psi_token *psi_token_alloc(struct psi_parser *P);
  80 size_t psi_token_alloc_size(size_t token_len, size_t fname_len);
  81 struct psi_token *psi_token_copy(struct psi_token *src);
  82 struct psi_token *psi_token_cat(unsigned argc, ...);
  83 struct psi_token *psi_token_append(struct psi_token *T, unsigned argc, ...);
  84 struct psi_token *psi_token_translit(struct psi_token *T, char *from, char *to);
  85 uint64_t psi_token_hash(struct psi_token *t, char *digest_buf);
  86
  87 #endif