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no more repeat ... end.

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This commit is contained in:
Roberto Ierusalimschy 2000-04-11 15:37:18 -03:00
parent 0810bc707f
commit 0433e42023
1 changed files with 17 additions and 17 deletions
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34
lparser.c
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@ -1,5 +1,5 @@
/*
** $Id: lparser.c,v 1.79 2000/04/07 19:35:20 roberto Exp roberto $
** $Id: lparser.c,v 1.80 2000/04/10 19:21:14 roberto Exp roberto $
** LL(1) Parser and code generator for Lua
** See Copyright Notice in lua.h
*/
@ -214,8 +214,15 @@ static void adjustlocalvars (LexState *ls, int nvars, int line) {
}
static void add_localvar (LexState *ls, TString *name) {
store_localvar(ls, name, 0);
static void removelocalvars (LexState *ls, int nvars, int line) {
ls->fs->nlocalvar -= nvars;
while (nvars--)
luaI_unregisterlocalvar(ls, line);
}
static void add_localvar (LexState *ls, const char *name) {
store_localvar(ls, luaS_newfixed(ls->L, name), 0);
adjustlocalvars(ls, 1, 0);
}
@ -305,7 +312,7 @@ static void code_args (LexState *ls, int nparams, int dots) {
luaK_deltastack(fs, nparams);
else {
luaK_deltastack(fs, nparams+1);
add_localvar(ls, luaS_newfixed(ls->L, "arg"));
add_localvar(ls, "arg");
}
}
@ -830,8 +837,7 @@ static void block (LexState *ls) {
int nlocalvar = fs->nlocalvar;
chunk(ls);
luaK_adjuststack(fs, fs->nlocalvar - nlocalvar); /* remove local variables */
for (; fs->nlocalvar > nlocalvar; fs->nlocalvar--)
luaI_unregisterlocalvar(ls, fs->lastsetline);
removelocalvars(ls, fs->nlocalvar - nlocalvar, fs->lastsetline);
}
@ -892,16 +898,10 @@ static void repeatstat (LexState *ls, int line) {
enterbreak(fs, &bl);
setline_and_next(ls); /* trace REPEAT when looping */
block(ls);
if (ls->token == TK_END) {
luaK_patchlist(fs, luaK_jump(fs), repeat_init);
next(ls);
}
else {
check_match(ls, TK_UNTIL, TK_REPEAT, line);
expr(ls, &v);
luaK_goiftrue(fs, &v, 0);
luaK_patchlist(fs, v.u.l.f, repeat_init);
}
check_match(ls, TK_UNTIL, TK_REPEAT, line);
expr(ls, &v);
luaK_goiftrue(fs, &v, 0);
luaK_patchlist(fs, v.u.l.f, repeat_init);
leavebreak(fs, &bl);
}
@ -1135,7 +1135,7 @@ static void body (LexState *ls, int needself, int line) {
new_fs.f->lineDefined = line;
check(ls, '(');
if (needself)
add_localvar(ls, luaS_newfixed(ls->L, "self"));
add_localvar(ls, "self");
parlist(ls);
check(ls, ')');
chunk(ls);