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bug: parser overwrites semantic information when looking ahead

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This commit is contained in:
Roberto Ierusalimschy
2000-09-27 14:41:58 -03:00
parent 444d6a106b
commit 282ab366f4
4 changed files with 33 additions and 23 deletions
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16
llex.h
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@@ -1,5 +1,5 @@
/*
** $Id: llex.h,v 1.29 2000/06/19 18:05:14 roberto Exp roberto $
** $Id: llex.h,v 1.30 2000/06/21 18:13:56 roberto Exp roberto $
** Lexical Analyzer
** See Copyright Notice in lua.h
*/
@@ -35,14 +35,18 @@ enum RESERVED {
#define NUM_RESERVED ((int)(TK_WHILE-FIRST_RESERVED+1))
typedef union {
Number r;
TString *ts;
} SemInfo; /* semantics information */
typedef struct Token {
int token;
union {
Number r;
TString *ts;
} seminfo; /* semantics information */
SemInfo seminfo;
} Token;
typedef struct LexState {
int current; /* current character */
Token t; /* current token */
@@ -58,7 +62,7 @@ typedef struct LexState {
void luaX_init (lua_State *L);
void luaX_setinput (lua_State *L, LexState *LS, ZIO *z, TString *source);
int luaX_lex (LexState *LS);
int luaX_lex (LexState *LS, SemInfo *seminfo);
void luaX_checklimit (LexState *ls, int val, int limit, const char *msg);
void luaX_syntaxerror (LexState *ls, const char *s, const char *token);
void luaX_error (LexState *ls, const char *s, int token);