api refactoring

[m6w6/ext-psi] / src / token.h

diff --git a/src/token.h b/src/token.h
new file mode 100644 (file)
index 0000000..c7ce751
--- /dev/null
+++ b/src/token.h
@@ -0,0 +1,87 @@
+#ifndef _PSI_TOKEN_H
+#define _PSI_TOKEN_H
+
+#include <stddef.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <assert.h>
+
+#include "parser_proc.h"
+
+#define PSI_T_POINTER PSI_T_ASTERISK
+#define PSI_T_LONG_DOUBLE (PSI_T_DOUBLE << 16)
+
+typedef int token_t;
+
+static inline size_t psi_t_alignment(token_t t)
+{
+#define PSI_ALIGNOF(T) case PSI_T_## T: return ALIGNOF_## T ##_T;
+       switch (t) {
+       PSI_ALIGNOF(INT8);
+       PSI_ALIGNOF(UINT8);
+       PSI_ALIGNOF(INT16);
+       PSI_ALIGNOF(UINT16);
+       PSI_ALIGNOF(INT32);
+       PSI_ALIGNOF(UINT32);
+       PSI_ALIGNOF(INT64);
+       PSI_ALIGNOF(UINT64);
+       case PSI_T_FLOAT:
+               return ALIGNOF_FLOAT;
+       case PSI_T_DOUBLE:
+               return ALIGNOF_DOUBLE;
+       case PSI_T_POINTER:
+       case PSI_T_FUNCTION:
+               return ALIGNOF_VOID_P;
+       case PSI_T_ENUM:
+               return ALIGNOF_INT;
+       default:
+               assert(0);
+       }
+       return 0;
+}
+
+static inline size_t psi_t_size(token_t t)
+{
+#define PSI_SIZEOF(T) case PSI_T_## T : return SIZEOF_## T ##_T;
+       switch (t) {
+       PSI_SIZEOF(INT8);
+       PSI_SIZEOF(UINT8);
+       PSI_SIZEOF(INT16);
+       PSI_SIZEOF(UINT16);
+       PSI_SIZEOF(INT32);
+       PSI_SIZEOF(UINT32);
+       PSI_SIZEOF(INT64);
+       PSI_SIZEOF(UINT64);
+       case PSI_T_FLOAT:
+               return SIZEOF_FLOAT;
+       case PSI_T_DOUBLE:
+               return SIZEOF_DOUBLE;
+       case PSI_T_POINTER:
+       case PSI_T_FUNCTION:
+               return SIZEOF_VOID_P;
+       case PSI_T_ENUM:
+               return SIZEOF_INT;
+       default:
+               assert(0);
+       }
+       return 0;
+}
+
+struct psi_token {
+       token_t type;
+       unsigned size, line, col;
+       char *text, *file;
+       char buf[1];
+};
+
+struct psi_parser;
+
+struct psi_token *psi_token_alloc(struct psi_parser *P);
+size_t psi_token_alloc_size(size_t token_len, size_t fname_len);
+struct psi_token *psi_token_copy(struct psi_token *src);
+struct psi_token *psi_token_cat(unsigned argc, ...);
+struct psi_token *psi_token_append(struct psi_token *T, unsigned argc, ...);
+struct psi_token *psi_token_translit(struct psi_token *T, char *from, char *to);
+uint64_t psi_token_hash(struct psi_token *t, char *digest_buf);
+
+#endif