src/tree.h

   1 /*
   2 ** tree.h
   3 ** TecCGraf - PUC-Rio
   4 ** $Id: tree.h,v 1.10 1995/10/17 11:53:53 roberto Exp $
   5 */
   6
   7 #ifndef tree_h
   8 #define tree_h
   9
  10 #include "types.h"
  11
  12 #define NOT_USED  0xFFFE
  13
  14
  15 typedef struct TaggedString
  16 {
  17   unsigned long hash;  /* 0 if not initialized */
  18   char marked;   /* for garbage collection */
  19   char str[1];   /* \0 byte already reserved */
  20 } TaggedString;
  21
  22 typedef struct TreeNode
  23 {
  24  struct TreeNode *right;
  25  struct TreeNode *left;
  26  unsigned short varindex;  /* != NOT_USED  if this is a symbol */
  27  unsigned short constindex;  /* != NOT_USED  if this is a constant */
  28  TaggedString ts;
  29 } TreeNode;
  30
  31
  32 TaggedString *lua_createstring (char *str);
  33 TreeNode *lua_constcreate  (char *str);
  34 Long lua_strcollector (void);
  35 TreeNode *luaI_nodebysymbol (Word symbol);
  36
  37 #endif