diff options
author | Alexander Lantsev <aunsane@gmail.com> | 2016-06-13 14:18:51 +0000 |
---|---|---|
committer | Alexander Lantsev <aunsane@gmail.com> | 2016-06-13 14:18:51 +0000 |
commit | 8cf571c5ea48be2d281d2c83ed0f2dba6f2c32f4 (patch) | |
tree | 0345c47dc55eee01884f535fb26e0a2d44732213 /libs/liblua/src/lparser.c | |
parent | 4386b8b61c08045c5d416b546517e1c71c7dcae6 (diff) |
lublua:
- updated to 5.3.3
- renamed to lua53.dll
git-svn-id: http://svn.miranda-ng.org/main/trunk@16965 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'libs/liblua/src/lparser.c')
-rw-r--r-- | libs/liblua/src/lparser.c | 49 |
1 files changed, 27 insertions, 22 deletions
diff --git a/libs/liblua/src/lparser.c b/libs/liblua/src/lparser.c index 9a54dfc98d..22530a57b2 100644 --- a/libs/liblua/src/lparser.c +++ b/libs/liblua/src/lparser.c @@ -1,5 +1,5 @@ /* -** $Id: lparser.c,v 2.147 2014/12/27 20:31:43 roberto Exp $ +** $Id: lparser.c,v 2.153 2016/05/13 19:10:16 roberto Exp $ ** Lua Parser ** See Copyright Notice in lua.h */ @@ -164,7 +164,8 @@ static int registerlocalvar (LexState *ls, TString *varname) { int oldsize = f->sizelocvars; luaM_growvector(ls->L, f->locvars, fs->nlocvars, f->sizelocvars, LocVar, SHRT_MAX, "local variables"); - while (oldsize < f->sizelocvars) f->locvars[oldsize++].varname = NULL; + while (oldsize < f->sizelocvars) + f->locvars[oldsize++].varname = NULL; f->locvars[fs->nlocvars].varname = varname; luaC_objbarrier(ls->L, f, varname); return fs->nlocvars++; @@ -230,7 +231,8 @@ static int newupvalue (FuncState *fs, TString *name, expdesc *v) { checklimit(fs, fs->nups + 1, MAXUPVAL, "upvalues"); luaM_growvector(fs->ls->L, f->upvalues, fs->nups, f->sizeupvalues, Upvaldesc, MAXUPVAL, "upvalues"); - while (oldsize < f->sizeupvalues) f->upvalues[oldsize++].name = NULL; + while (oldsize < f->sizeupvalues) + f->upvalues[oldsize++].name = NULL; f->upvalues[fs->nups].instack = (v->k == VLOCAL); f->upvalues[fs->nups].idx = cast_byte(v->u.info); f->upvalues[fs->nups].name = name; @@ -255,7 +257,8 @@ static int searchvar (FuncState *fs, TString *n) { */ static void markupval (FuncState *fs, int level) { BlockCnt *bl = fs->bl; - while (bl->nactvar > level) bl = bl->previous; + while (bl->nactvar > level) + bl = bl->previous; bl->upval = 1; } @@ -264,27 +267,26 @@ static void markupval (FuncState *fs, int level) { Find variable with given name 'n'. If it is an upvalue, add this upvalue into all intermediate functions. */ -static int singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) { +static void singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) { if (fs == NULL) /* no more levels? */ - return VVOID; /* default is global */ + init_exp(var, VVOID, 0); /* default is global */ else { int v = searchvar(fs, n); /* look up locals at current level */ if (v >= 0) { /* found? */ init_exp(var, VLOCAL, v); /* variable is local */ if (!base) markupval(fs, v); /* local will be used as an upval */ - return VLOCAL; } else { /* not found as local at current level; try upvalues */ int idx = searchupvalue(fs, n); /* try existing upvalues */ if (idx < 0) { /* not found? */ - if (singlevaraux(fs->prev, n, var, 0) == VVOID) /* try upper levels */ - return VVOID; /* not found; is a global */ + singlevaraux(fs->prev, n, var, 0); /* try upper levels */ + if (var->k == VVOID) /* not found? */ + return; /* it is a global */ /* else was LOCAL or UPVAL */ idx = newupvalue(fs, n, var); /* will be a new upvalue */ } - init_exp(var, VUPVAL, idx); - return VUPVAL; + init_exp(var, VUPVAL, idx); /* new or old upvalue */ } } } @@ -293,10 +295,11 @@ static int singlevaraux (FuncState *fs, TString *n, expdesc *var, int base) { static void singlevar (LexState *ls, expdesc *var) { TString *varname = str_checkname(ls); FuncState *fs = ls->fs; - if (singlevaraux(fs, varname, var, 1) == VVOID) { /* global name? */ + singlevaraux(fs, varname, var, 1); + if (var->k == VVOID) { /* global name? */ expdesc key; singlevaraux(fs, ls->envn, var, 1); /* get environment variable */ - lua_assert(var->k == VLOCAL || var->k == VUPVAL); + lua_assert(var->k != VVOID); /* this one must exist */ codestring(ls, &key, varname); /* key is variable name */ luaK_indexed(fs, var, &key); /* env[varname] */ } @@ -499,7 +502,8 @@ static Proto *addprototype (LexState *ls) { if (fs->np >= f->sizep) { int oldsize = f->sizep; luaM_growvector(L, f->p, fs->np, f->sizep, Proto *, MAXARG_Bx, "functions"); - while (oldsize < f->sizep) f->p[oldsize++] = NULL; + while (oldsize < f->sizep) + f->p[oldsize++] = NULL; } f->p[fs->np++] = clp = luaF_newproto(L); luaC_objbarrier(L, f, clp); @@ -760,7 +764,7 @@ static void parlist (LexState *ls) { } case TK_DOTS: { /* param -> '...' */ luaX_next(ls); - f->is_vararg = 1; + f->is_vararg = 2; /* declared vararg */ break; } default: luaX_syntaxerror(ls, "<name> or '...' expected"); @@ -956,6 +960,7 @@ static void simpleexp (LexState *ls, expdesc *v) { FuncState *fs = ls->fs; check_condition(ls, fs->f->is_vararg, "cannot use '...' outside a vararg function"); + fs->f->is_vararg = 1; /* function actually uses vararg */ init_exp(v, VVARARG, luaK_codeABC(fs, OP_VARARG, 0, 1, 0)); break; } @@ -1225,7 +1230,7 @@ static void labelstat (LexState *ls, TString *label, int line) { checkrepeated(fs, ll, label); /* check for repeated labels */ checknext(ls, TK_DBCOLON); /* skip double colon */ /* create new entry for this label */ - l = newlabelentry(ls, ll, label, line, fs->pc); + l = newlabelentry(ls, ll, label, line, luaK_getlabel(fs)); skipnoopstat(ls); /* skip other no-op statements */ if (block_follow(ls, 0)) { /* label is last no-op statement in the block? */ /* assume that locals are already out of scope */ @@ -1493,7 +1498,7 @@ static void exprstat (LexState *ls) { } else { /* stat -> func */ check_condition(ls, v.v.k == VCALL, "syntax error"); - SETARG_C(getcode(fs, &v.v), 1); /* call statement uses no results */ + SETARG_C(getinstruction(fs, &v.v), 1); /* call statement uses no results */ } } @@ -1510,8 +1515,8 @@ static void retstat (LexState *ls) { if (hasmultret(e.k)) { luaK_setmultret(fs, &e); if (e.k == VCALL && nret == 1) { /* tail call? */ - SET_OPCODE(getcode(fs,&e), OP_TAILCALL); - lua_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar); + SET_OPCODE(getinstruction(fs,&e), OP_TAILCALL); + lua_assert(GETARG_A(getinstruction(fs,&e)) == fs->nactvar); } first = fs->nactvar; nret = LUA_MULTRET; /* return all values */ @@ -1610,7 +1615,7 @@ static void mainfunc (LexState *ls, FuncState *fs) { BlockCnt bl; expdesc v; open_func(ls, fs, &bl); - fs->f->is_vararg = 1; /* main function is always vararg */ + fs->f->is_vararg = 2; /* main function is always declared vararg */ init_exp(&v, VLOCAL, 0); /* create and... */ newupvalue(fs, ls->envn, &v); /* ...set environment upvalue */ luaX_next(ls); /* read first token */ @@ -1626,10 +1631,10 @@ LClosure *luaY_parser (lua_State *L, ZIO *z, Mbuffer *buff, FuncState funcstate; LClosure *cl = luaF_newLclosure(L, 1); /* create main closure */ setclLvalue(L, L->top, cl); /* anchor it (to avoid being collected) */ - incr_top(L); + luaD_inctop(L); lexstate.h = luaH_new(L); /* create table for scanner */ sethvalue(L, L->top, lexstate.h); /* anchor it */ - incr_top(L); + luaD_inctop(L); funcstate.f = cl->p = luaF_newproto(L); funcstate.f->source = luaS_new(L, name); /* create and anchor TString */ lua_assert(iswhite(funcstate.f)); /* do not need barrier here */ |