diff options
Diffstat (limited to 'lparser.c')
| -rw-r--r-- | lparser.c | 184 |
1 files changed, 92 insertions, 92 deletions
| @@ -1,5 +1,5 @@ | |||
| 1 | /* | 1 | /* |
| 2 | ** $Id: lparser.c,v 1.137 2001/02/22 18:59:59 roberto Exp roberto $ | 2 | ** $Id: lparser.c,v 1.138 2001/02/23 13:38:56 roberto Exp roberto $ |
| 3 | ** LL(1) Parser and code generator for Lua | 3 | ** LL(1) Parser and code generator for Lua |
| 4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
| 5 | */ | 5 | */ |
| @@ -72,9 +72,9 @@ static void lookahead (LexState *ls) { | |||
| 72 | 72 | ||
| 73 | 73 | ||
| 74 | static void error_expected (LexState *ls, int token) { | 74 | static void error_expected (LexState *ls, int token) { |
| 75 | char buff[30], t[TOKEN_LEN]; | 75 | l_char buff[30], t[TOKEN_LEN]; |
| 76 | luaX_token2str(token, t); | 76 | luaX_token2str(token, t); |
| 77 | sprintf(buff, "`%.10s' expected", t); | 77 | sprintf(buff, l_s("`%.10s' expected"), t); |
| 78 | luaK_error(ls, buff); | 78 | luaK_error(ls, buff); |
| 79 | } | 79 | } |
| 80 | 80 | ||
| @@ -86,7 +86,7 @@ static void check (LexState *ls, int c) { | |||
| 86 | } | 86 | } |
| 87 | 87 | ||
| 88 | 88 | ||
| 89 | static void check_condition (LexState *ls, int c, const char *msg) { | 89 | static void check_condition (LexState *ls, int c, const l_char *msg) { |
| 90 | if (!c) luaK_error(ls, msg); | 90 | if (!c) luaK_error(ls, msg); |
| 91 | } | 91 | } |
| 92 | 92 | ||
| @@ -105,11 +105,11 @@ static void check_match (LexState *ls, int what, int who, int where) { | |||
| 105 | if (where == ls->linenumber) | 105 | if (where == ls->linenumber) |
| 106 | error_expected(ls, what); | 106 | error_expected(ls, what); |
| 107 | else { | 107 | else { |
| 108 | char buff[70]; | 108 | l_char buff[70]; |
| 109 | char t_what[TOKEN_LEN], t_who[TOKEN_LEN]; | 109 | l_char t_what[TOKEN_LEN], t_who[TOKEN_LEN]; |
| 110 | luaX_token2str(what, t_what); | 110 | luaX_token2str(what, t_what); |
| 111 | luaX_token2str(who, t_who); | 111 | luaX_token2str(who, t_who); |
| 112 | sprintf(buff, "`%.10s' expected (to close `%.10s' at line %d)", | 112 | sprintf(buff, l_s("`%.10s' expected (to close `%.10s' at line %d)"), |
| 113 | t_what, t_who, where); | 113 | t_what, t_who, where); |
| 114 | luaK_error(ls, buff); | 114 | luaK_error(ls, buff); |
| 115 | } | 115 | } |
| @@ -123,7 +123,7 @@ static int string_constant (FuncState *fs, TString *s) { | |||
| 123 | int c = s->u.s.constindex; | 123 | int c = s->u.s.constindex; |
| 124 | if (c >= fs->nkstr || f->kstr[c] != s) { | 124 | if (c >= fs->nkstr || f->kstr[c] != s) { |
| 125 | luaM_growvector(fs->L, f->kstr, fs->nkstr, f->sizekstr, TString *, | 125 | luaM_growvector(fs->L, f->kstr, fs->nkstr, f->sizekstr, TString *, |
| 126 | MAXARG_U, "constant table overflow"); | 126 | MAXARG_U, l_s("constant table overflow")); |
| 127 | c = fs->nkstr++; | 127 | c = fs->nkstr++; |
| 128 | f->kstr[c] = s; | 128 | f->kstr[c] = s; |
| 129 | s->u.s.constindex = c; /* hint for next time */ | 129 | s->u.s.constindex = c; /* hint for next time */ |
| @@ -139,7 +139,7 @@ static void code_string (LexState *ls, TString *s) { | |||
| 139 | 139 | ||
| 140 | static TString *str_checkname (LexState *ls) { | 140 | static TString *str_checkname (LexState *ls) { |
| 141 | TString *ts; | 141 | TString *ts; |
| 142 | check_condition(ls, (ls->t.token == TK_NAME), "<name> expected"); | 142 | check_condition(ls, (ls->t.token == TK_NAME), l_s("<name> expected")); |
| 143 | ts = ls->t.seminfo.ts; | 143 | ts = ls->t.seminfo.ts; |
| 144 | next(ls); | 144 | next(ls); |
| 145 | return ts; | 145 | return ts; |
| @@ -155,7 +155,7 @@ static int luaI_registerlocalvar (LexState *ls, TString *varname) { | |||
| 155 | FuncState *fs = ls->fs; | 155 | FuncState *fs = ls->fs; |
| 156 | Proto *f = fs->f; | 156 | Proto *f = fs->f; |
| 157 | luaM_growvector(ls->L, f->locvars, fs->nlocvars, f->sizelocvars, | 157 | luaM_growvector(ls->L, f->locvars, fs->nlocvars, f->sizelocvars, |
| 158 | LocVar, MAX_INT, ""); | 158 | LocVar, MAX_INT, l_s("")); |
| 159 | f->locvars[fs->nlocvars].varname = varname; | 159 | f->locvars[fs->nlocvars].varname = varname; |
| 160 | return fs->nlocvars++; | 160 | return fs->nlocvars++; |
| 161 | } | 161 | } |
| @@ -163,7 +163,7 @@ static int luaI_registerlocalvar (LexState *ls, TString *varname) { | |||
| 163 | 163 | ||
| 164 | static void new_localvar (LexState *ls, TString *name, int n) { | 164 | static void new_localvar (LexState *ls, TString *name, int n) { |
| 165 | FuncState *fs = ls->fs; | 165 | FuncState *fs = ls->fs; |
| 166 | luaX_checklimit(ls, fs->nactloc+n+1, MAXLOCALS, "local variables"); | 166 | luaX_checklimit(ls, fs->nactloc+n+1, MAXLOCALS, l_s("local variables")); |
| 167 | fs->actloc[fs->nactloc+n] = luaI_registerlocalvar(ls, name); | 167 | fs->actloc[fs->nactloc+n] = luaI_registerlocalvar(ls, name); |
| 168 | } | 168 | } |
| 169 | 169 | ||
| @@ -182,7 +182,7 @@ static void removelocalvars (LexState *ls, int nvars) { | |||
| 182 | } | 182 | } |
| 183 | 183 | ||
| 184 | 184 | ||
| 185 | static void new_localvarstr (LexState *ls, const char *name, int n) { | 185 | static void new_localvarstr (LexState *ls, const l_char *name, int n) { |
| 186 | new_localvar(ls, luaS_new(ls->L, name), n); | 186 | new_localvar(ls, luaS_new(ls->L, name), n); |
| 187 | } | 187 | } |
| 188 | 188 | ||
| @@ -209,7 +209,7 @@ static int search_local (LexState *ls, TString *n, expdesc *var) { | |||
| 209 | static void singlevar (LexState *ls, TString *n, expdesc *var) { | 209 | static void singlevar (LexState *ls, TString *n, expdesc *var) { |
| 210 | int level = search_local(ls, n, var); | 210 | int level = search_local(ls, n, var); |
| 211 | if (level >= 1) /* neither local (0) nor global (-1)? */ | 211 | if (level >= 1) /* neither local (0) nor global (-1)? */ |
| 212 | luaX_syntaxerror(ls, "cannot access a variable in outer function", | 212 | luaX_syntaxerror(ls, l_s("cannot access a variable in outer function"), |
| 213 | getstr(n)); | 213 | getstr(n)); |
| 214 | else if (level == -1) /* global? */ | 214 | else if (level == -1) /* global? */ |
| 215 | var->u.index = string_constant(ls->fs, n); | 215 | var->u.index = string_constant(ls->fs, n); |
| @@ -224,7 +224,7 @@ static int indexupvalue (LexState *ls, expdesc *v) { | |||
| 224 | return i; | 224 | return i; |
| 225 | } | 225 | } |
| 226 | /* new one */ | 226 | /* new one */ |
| 227 | luaX_checklimit(ls, fs->f->nupvalues+1, MAXUPVALUES, "upvalues"); | 227 | luaX_checklimit(ls, fs->f->nupvalues+1, MAXUPVALUES, l_s("upvalues")); |
| 228 | fs->upvalues[fs->f->nupvalues] = *v; | 228 | fs->upvalues[fs->f->nupvalues] = *v; |
| 229 | return fs->f->nupvalues++; | 229 | return fs->f->nupvalues++; |
| 230 | } | 230 | } |
| @@ -236,12 +236,12 @@ static void pushupvalue (LexState *ls, TString *n) { | |||
| 236 | int level = search_local(ls, n, &v); | 236 | int level = search_local(ls, n, &v); |
| 237 | if (level == -1) { /* global? */ | 237 | if (level == -1) { /* global? */ |
| 238 | if (fs->prev == NULL) | 238 | if (fs->prev == NULL) |
| 239 | luaX_syntaxerror(ls, "cannot access an upvalue at top level", getstr(n)); | 239 | luaX_syntaxerror(ls, l_s("cannot access an upvalue at top level"), getstr(n)); |
| 240 | v.u.index = string_constant(fs->prev, n); | 240 | v.u.index = string_constant(fs->prev, n); |
| 241 | } | 241 | } |
| 242 | else if (level != 1) { | 242 | else if (level != 1) { |
| 243 | luaX_syntaxerror(ls, | 243 | luaX_syntaxerror(ls, |
| 244 | "upvalue must be global or local to immediately outer function", getstr(n)); | 244 | l_s("upvalue must be global or local to immediately outer function"), getstr(n)); |
| 245 | } | 245 | } |
| 246 | luaK_code1(fs, OP_PUSHUPVALUE, indexupvalue(ls, &v)); | 246 | luaK_code1(fs, OP_PUSHUPVALUE, indexupvalue(ls, &v)); |
| 247 | } | 247 | } |
| @@ -267,11 +267,11 @@ static void adjust_mult_assign (LexState *ls, int nvars, int nexps) { | |||
| 267 | static void code_params (LexState *ls, int nparams, short dots) { | 267 | static void code_params (LexState *ls, int nparams, short dots) { |
| 268 | FuncState *fs = ls->fs; | 268 | FuncState *fs = ls->fs; |
| 269 | adjustlocalvars(ls, nparams); | 269 | adjustlocalvars(ls, nparams); |
| 270 | luaX_checklimit(ls, fs->nactloc, MAXPARAMS, "parameters"); | 270 | luaX_checklimit(ls, fs->nactloc, MAXPARAMS, l_s("parameters")); |
| 271 | fs->f->numparams = (short)fs->nactloc; /* `self' could be there already */ | 271 | fs->f->numparams = (short)fs->nactloc; /* `self' could be there already */ |
| 272 | fs->f->is_vararg = dots; | 272 | fs->f->is_vararg = dots; |
| 273 | if (dots) { | 273 | if (dots) { |
| 274 | new_localvarstr(ls, "arg", 0); | 274 | new_localvarstr(ls, l_s("arg"), 0); |
| 275 | adjustlocalvars(ls, 1); | 275 | adjustlocalvars(ls, 1); |
| 276 | } | 276 | } |
| 277 | luaK_deltastack(fs, fs->nactloc); /* count parameters in the stack */ | 277 | luaK_deltastack(fs, fs->nactloc); /* count parameters in the stack */ |
| @@ -300,7 +300,7 @@ static void pushclosure (LexState *ls, FuncState *func) { | |||
| 300 | for (i=0; i<func->f->nupvalues; i++) | 300 | for (i=0; i<func->f->nupvalues; i++) |
| 301 | luaK_tostack(ls, &func->upvalues[i], 1); | 301 | luaK_tostack(ls, &func->upvalues[i], 1); |
| 302 | luaM_growvector(ls->L, f->kproto, fs->nkproto, f->sizekproto, Proto *, | 302 | luaM_growvector(ls->L, f->kproto, fs->nkproto, f->sizekproto, Proto *, |
| 303 | MAXARG_A, "constant table overflow"); | 303 | MAXARG_A, l_s("constant table overflow")); |
| 304 | f->kproto[fs->nkproto++] = func->f; | 304 | f->kproto[fs->nkproto++] = func->f; |
| 305 | luaK_code2(fs, OP_CLOSURE, fs->nkproto-1, func->f->nupvalues); | 305 | luaK_code2(fs, OP_CLOSURE, fs->nkproto-1, func->f->nupvalues); |
| 306 | } | 306 | } |
| @@ -366,7 +366,7 @@ Proto *luaY_parser (lua_State *L, ZIO *z) { | |||
| 366 | open_func(&lexstate, &funcstate); | 366 | open_func(&lexstate, &funcstate); |
| 367 | next(&lexstate); /* read first token */ | 367 | next(&lexstate); /* read first token */ |
| 368 | chunk(&lexstate); | 368 | chunk(&lexstate); |
| 369 | check_condition(&lexstate, (lexstate.t.token == TK_EOS), "<eof> expected"); | 369 | check_condition(&lexstate, (lexstate.t.token == TK_EOS), l_s("<eof> expected")); |
| 370 | close_func(&lexstate); | 370 | close_func(&lexstate); |
| 371 | lua_assert(funcstate.prev == NULL); | 371 | lua_assert(funcstate.prev == NULL); |
| 372 | lua_assert(funcstate.f->nupvalues == 0); | 372 | lua_assert(funcstate.f->nupvalues == 0); |
| @@ -385,7 +385,7 @@ static int explist1 (LexState *ls) { | |||
| 385 | int n = 1; /* at least one expression */ | 385 | int n = 1; /* at least one expression */ |
| 386 | expdesc v; | 386 | expdesc v; |
| 387 | expr(ls, &v); | 387 | expr(ls, &v); |
| 388 | while (ls->t.token == ',') { | 388 | while (ls->t.token == l_c(',')) { |
| 389 | next(ls); /* skip comma */ | 389 | next(ls); /* skip comma */ |
| 390 | luaK_tostack(ls, &v, 1); /* gets only 1 value from previous expression */ | 390 | luaK_tostack(ls, &v, 1); /* gets only 1 value from previous expression */ |
| 391 | expr(ls, &v); | 391 | expr(ls, &v); |
| @@ -400,13 +400,13 @@ static void funcargs (LexState *ls, int slf) { | |||
| 400 | FuncState *fs = ls->fs; | 400 | FuncState *fs = ls->fs; |
| 401 | int slevel = fs->stacklevel - slf - 1; /* where is func in the stack */ | 401 | int slevel = fs->stacklevel - slf - 1; /* where is func in the stack */ |
| 402 | switch (ls->t.token) { | 402 | switch (ls->t.token) { |
| 403 | case '(': { /* funcargs -> `(' [ explist1 ] `)' */ | 403 | case l_c('('): { /* funcargs -> `(' [ explist1 ] `)' */ |
| 404 | int line = ls->linenumber; | 404 | int line = ls->linenumber; |
| 405 | int nargs = 0; | 405 | int nargs = 0; |
| 406 | next(ls); | 406 | next(ls); |
| 407 | if (ls->t.token != ')') /* arg list not empty? */ | 407 | if (ls->t.token != l_c(')')) /* arg list not empty? */ |
| 408 | nargs = explist1(ls); | 408 | nargs = explist1(ls); |
| 409 | check_match(ls, ')', '(', line); | 409 | check_match(ls, l_c(')'), l_c('('), line); |
| 410 | #ifdef LUA_COMPAT_ARGRET | 410 | #ifdef LUA_COMPAT_ARGRET |
| 411 | if (nargs > 0) /* arg list is not empty? */ | 411 | if (nargs > 0) /* arg list is not empty? */ |
| 412 | luaK_setcallreturns(fs, 1); /* last call returns only 1 value */ | 412 | luaK_setcallreturns(fs, 1); /* last call returns only 1 value */ |
| @@ -415,7 +415,7 @@ static void funcargs (LexState *ls, int slf) { | |||
| 415 | #endif | 415 | #endif |
| 416 | break; | 416 | break; |
| 417 | } | 417 | } |
| 418 | case '{': { /* funcargs -> constructor */ | 418 | case l_c('{'): { /* funcargs -> constructor */ |
| 419 | constructor(ls); | 419 | constructor(ls); |
| 420 | break; | 420 | break; |
| 421 | } | 421 | } |
| @@ -425,7 +425,7 @@ static void funcargs (LexState *ls, int slf) { | |||
| 425 | break; | 425 | break; |
| 426 | } | 426 | } |
| 427 | default: { | 427 | default: { |
| 428 | luaK_error(ls, "function arguments expected"); | 428 | luaK_error(ls, l_s("function arguments expected")); |
| 429 | break; | 429 | break; |
| 430 | } | 430 | } |
| 431 | } | 431 | } |
| @@ -448,15 +448,15 @@ static void recfield (LexState *ls) { | |||
| 448 | luaK_kstr(ls, checkname(ls)); | 448 | luaK_kstr(ls, checkname(ls)); |
| 449 | break; | 449 | break; |
| 450 | } | 450 | } |
| 451 | case '[': { | 451 | case l_c('['): { |
| 452 | next(ls); | 452 | next(ls); |
| 453 | exp1(ls); | 453 | exp1(ls); |
| 454 | check(ls, ']'); | 454 | check(ls, l_c(']')); |
| 455 | break; | 455 | break; |
| 456 | } | 456 | } |
| 457 | default: luaK_error(ls, "<name> or `[' expected"); | 457 | default: luaK_error(ls, l_s("<name> or `[' expected")); |
| 458 | } | 458 | } |
| 459 | check(ls, '='); | 459 | check(ls, l_c('=')); |
| 460 | exp1(ls); | 460 | exp1(ls); |
| 461 | } | 461 | } |
| 462 | 462 | ||
| @@ -466,9 +466,9 @@ static int recfields (LexState *ls) { | |||
| 466 | FuncState *fs = ls->fs; | 466 | FuncState *fs = ls->fs; |
| 467 | int n = 1; /* at least one element */ | 467 | int n = 1; /* at least one element */ |
| 468 | recfield(ls); | 468 | recfield(ls); |
| 469 | while (ls->t.token == ',') { | 469 | while (ls->t.token == l_c(',')) { |
| 470 | next(ls); | 470 | next(ls); |
| 471 | if (ls->t.token == ';' || ls->t.token == '}') | 471 | if (ls->t.token == l_c(';') || ls->t.token == l_c('}')) |
| 472 | break; | 472 | break; |
| 473 | recfield(ls); | 473 | recfield(ls); |
| 474 | n++; | 474 | n++; |
| @@ -485,14 +485,14 @@ static int listfields (LexState *ls) { | |||
| 485 | FuncState *fs = ls->fs; | 485 | FuncState *fs = ls->fs; |
| 486 | int n = 1; /* at least one element */ | 486 | int n = 1; /* at least one element */ |
| 487 | exp1(ls); | 487 | exp1(ls); |
| 488 | while (ls->t.token == ',') { | 488 | while (ls->t.token == l_c(',')) { |
| 489 | next(ls); | 489 | next(ls); |
| 490 | if (ls->t.token == ';' || ls->t.token == '}') | 490 | if (ls->t.token == l_c(';') || ls->t.token == l_c('}')) |
| 491 | break; | 491 | break; |
| 492 | exp1(ls); | 492 | exp1(ls); |
| 493 | n++; | 493 | n++; |
| 494 | luaX_checklimit(ls, n/LFIELDS_PER_FLUSH, MAXARG_A, | 494 | luaX_checklimit(ls, n/LFIELDS_PER_FLUSH, MAXARG_A, |
| 495 | "`item groups' in a list initializer"); | 495 | l_s("`item groups' in a list initializer")); |
| 496 | if (n%LFIELDS_PER_FLUSH == 0) | 496 | if (n%LFIELDS_PER_FLUSH == 0) |
| 497 | luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH - 1, LFIELDS_PER_FLUSH); | 497 | luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH - 1, LFIELDS_PER_FLUSH); |
| 498 | } | 498 | } |
| @@ -504,18 +504,18 @@ static int listfields (LexState *ls) { | |||
| 504 | 504 | ||
| 505 | static void constructor_part (LexState *ls, Constdesc *cd) { | 505 | static void constructor_part (LexState *ls, Constdesc *cd) { |
| 506 | switch (ls->t.token) { | 506 | switch (ls->t.token) { |
| 507 | case ';': case '}': { /* constructor_part -> empty */ | 507 | case l_c(';'): case l_c('}'): { /* constructor_part -> empty */ |
| 508 | cd->n = 0; | 508 | cd->n = 0; |
| 509 | cd->k = ls->t.token; | 509 | cd->k = ls->t.token; |
| 510 | break; | 510 | break; |
| 511 | } | 511 | } |
| 512 | case TK_NAME: { /* may be listfields or recfields */ | 512 | case TK_NAME: { /* may be listfields or recfields */ |
| 513 | lookahead(ls); | 513 | lookahead(ls); |
| 514 | if (ls->lookahead.token != '=') /* expression? */ | 514 | if (ls->lookahead.token != l_c('=')) /* expression? */ |
| 515 | goto case_default; | 515 | goto case_default; |
| 516 | /* else go through to recfields */ | 516 | /* else go through to recfields */ |
| 517 | } | 517 | } |
| 518 | case '[': { /* constructor_part -> recfields */ | 518 | case l_c('['): { /* constructor_part -> recfields */ |
| 519 | cd->n = recfields(ls); | 519 | cd->n = recfields(ls); |
| 520 | cd->k = 1; /* record */ | 520 | cd->k = 1; /* record */ |
| 521 | break; | 521 | break; |
| @@ -537,17 +537,17 @@ static void constructor (LexState *ls) { | |||
| 537 | int pc = luaK_code1(fs, OP_CREATETABLE, 0); | 537 | int pc = luaK_code1(fs, OP_CREATETABLE, 0); |
| 538 | int nelems; | 538 | int nelems; |
| 539 | Constdesc cd; | 539 | Constdesc cd; |
| 540 | check(ls, '{'); | 540 | check(ls, l_c('{')); |
| 541 | constructor_part(ls, &cd); | 541 | constructor_part(ls, &cd); |
| 542 | nelems = cd.n; | 542 | nelems = cd.n; |
| 543 | if (optional(ls, ';')) { | 543 | if (optional(ls, l_c(';'))) { |
| 544 | Constdesc other_cd; | 544 | Constdesc other_cd; |
| 545 | constructor_part(ls, &other_cd); | 545 | constructor_part(ls, &other_cd); |
| 546 | check_condition(ls, (cd.k != other_cd.k), "invalid constructor syntax"); | 546 | check_condition(ls, (cd.k != other_cd.k), l_s("invalid constructor syntax")); |
| 547 | nelems += other_cd.n; | 547 | nelems += other_cd.n; |
| 548 | } | 548 | } |
| 549 | check_match(ls, '}', '{', line); | 549 | check_match(ls, l_c('}'), l_c('{'), line); |
| 550 | luaX_checklimit(ls, nelems, MAXARG_U, "elements in a table constructor"); | 550 | luaX_checklimit(ls, nelems, MAXARG_U, l_s("elements in a table constructor")); |
| 551 | SETARG_U(fs->f->code[pc], nelems); /* set initial table size */ | 551 | SETARG_U(fs->f->code[pc], nelems); /* set initial table size */ |
| 552 | } | 552 | } |
| 553 | 553 | ||
| @@ -581,7 +581,7 @@ static void primaryexp (LexState *ls, expdesc *v) { | |||
| 581 | next(ls); | 581 | next(ls); |
| 582 | break; | 582 | break; |
| 583 | } | 583 | } |
| 584 | case '{': { /* constructor */ | 584 | case l_c('{'): { /* constructor */ |
| 585 | constructor(ls); | 585 | constructor(ls); |
| 586 | break; | 586 | break; |
| 587 | } | 587 | } |
| @@ -590,23 +590,23 @@ static void primaryexp (LexState *ls, expdesc *v) { | |||
| 590 | body(ls, 0, ls->linenumber); | 590 | body(ls, 0, ls->linenumber); |
| 591 | break; | 591 | break; |
| 592 | } | 592 | } |
| 593 | case '(': { | 593 | case l_c('('): { |
| 594 | next(ls); | 594 | next(ls); |
| 595 | expr(ls, v); | 595 | expr(ls, v); |
| 596 | check(ls, ')'); | 596 | check(ls, l_c(')')); |
| 597 | return; | 597 | return; |
| 598 | } | 598 | } |
| 599 | case TK_NAME: { | 599 | case TK_NAME: { |
| 600 | singlevar(ls, str_checkname(ls), v); | 600 | singlevar(ls, str_checkname(ls), v); |
| 601 | return; | 601 | return; |
| 602 | } | 602 | } |
| 603 | case '%': { | 603 | case l_c('%'): { |
| 604 | next(ls); /* skip `%' */ | 604 | next(ls); /* skip `%' */ |
| 605 | pushupvalue(ls, str_checkname(ls)); | 605 | pushupvalue(ls, str_checkname(ls)); |
| 606 | break; | 606 | break; |
| 607 | } | 607 | } |
| 608 | default: { | 608 | default: { |
| 609 | luaK_error(ls, "unexpected symbol"); | 609 | luaK_error(ls, l_s("unexpected symbol")); |
| 610 | return; | 610 | return; |
| 611 | } | 611 | } |
| 612 | } | 612 | } |
| @@ -621,22 +621,22 @@ static void simpleexp (LexState *ls, expdesc *v) { | |||
| 621 | primaryexp(ls, v); | 621 | primaryexp(ls, v); |
| 622 | for (;;) { | 622 | for (;;) { |
| 623 | switch (ls->t.token) { | 623 | switch (ls->t.token) { |
| 624 | case '.': { /* `.' NAME */ | 624 | case l_c('.'): { /* `.' NAME */ |
| 625 | next(ls); | 625 | next(ls); |
| 626 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ | 626 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ |
| 627 | luaK_kstr(ls, checkname(ls)); | 627 | luaK_kstr(ls, checkname(ls)); |
| 628 | v->k = VINDEXED; | 628 | v->k = VINDEXED; |
| 629 | break; | 629 | break; |
| 630 | } | 630 | } |
| 631 | case '[': { /* `[' exp1 `]' */ | 631 | case l_c('['): { /* `[' exp1 `]' */ |
| 632 | next(ls); | 632 | next(ls); |
| 633 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ | 633 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ |
| 634 | v->k = VINDEXED; | 634 | v->k = VINDEXED; |
| 635 | exp1(ls); | 635 | exp1(ls); |
| 636 | check(ls, ']'); | 636 | check(ls, l_c(']')); |
| 637 | break; | 637 | break; |
| 638 | } | 638 | } |
| 639 | case ':': { /* `:' NAME funcargs */ | 639 | case l_c(':'): { /* `:' NAME funcargs */ |
| 640 | next(ls); | 640 | next(ls); |
| 641 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ | 641 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ |
| 642 | luaK_code1(ls->fs, OP_PUSHSELF, checkname(ls)); | 642 | luaK_code1(ls->fs, OP_PUSHSELF, checkname(ls)); |
| @@ -645,7 +645,7 @@ static void simpleexp (LexState *ls, expdesc *v) { | |||
| 645 | v->u.l.t = v->u.l.f = NO_JUMP; | 645 | v->u.l.t = v->u.l.f = NO_JUMP; |
| 646 | break; | 646 | break; |
| 647 | } | 647 | } |
| 648 | case '(': case TK_STRING: case '{': { /* funcargs */ | 648 | case l_c('('): case TK_STRING: case l_c('{'): { /* funcargs */ |
| 649 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ | 649 | luaK_tostack(ls, v, 1); /* `v' must be on stack */ |
| 650 | funcargs(ls, 0); | 650 | funcargs(ls, 0); |
| 651 | v->k = VEXP; | 651 | v->k = VEXP; |
| @@ -661,7 +661,7 @@ static void simpleexp (LexState *ls, expdesc *v) { | |||
| 661 | static UnOpr getunopr (int op) { | 661 | static UnOpr getunopr (int op) { |
| 662 | switch (op) { | 662 | switch (op) { |
| 663 | case TK_NOT: return OPR_NOT; | 663 | case TK_NOT: return OPR_NOT; |
| 664 | case '-': return OPR_MINUS; | 664 | case l_c('-'): return OPR_MINUS; |
| 665 | default: return OPR_NOUNOPR; | 665 | default: return OPR_NOUNOPR; |
| 666 | } | 666 | } |
| 667 | } | 667 | } |
| @@ -669,17 +669,17 @@ static UnOpr getunopr (int op) { | |||
| 669 | 669 | ||
| 670 | static BinOpr getbinopr (int op) { | 670 | static BinOpr getbinopr (int op) { |
| 671 | switch (op) { | 671 | switch (op) { |
| 672 | case '+': return OPR_ADD; | 672 | case l_c('+'): return OPR_ADD; |
| 673 | case '-': return OPR_SUB; | 673 | case l_c('-'): return OPR_SUB; |
| 674 | case '*': return OPR_MULT; | 674 | case l_c('*'): return OPR_MULT; |
| 675 | case '/': return OPR_DIV; | 675 | case l_c('/'): return OPR_DIV; |
| 676 | case '^': return OPR_POW; | 676 | case l_c('^'): return OPR_POW; |
| 677 | case TK_CONCAT: return OPR_CONCAT; | 677 | case TK_CONCAT: return OPR_CONCAT; |
| 678 | case TK_NE: return OPR_NE; | 678 | case TK_NE: return OPR_NE; |
| 679 | case TK_EQ: return OPR_EQ; | 679 | case TK_EQ: return OPR_EQ; |
| 680 | case '<': return OPR_LT; | 680 | case l_c('<'): return OPR_LT; |
| 681 | case TK_LE: return OPR_LE; | 681 | case TK_LE: return OPR_LE; |
| 682 | case '>': return OPR_GT; | 682 | case l_c('>'): return OPR_GT; |
| 683 | case TK_GE: return OPR_GE; | 683 | case TK_GE: return OPR_GE; |
| 684 | case TK_AND: return OPR_AND; | 684 | case TK_AND: return OPR_AND; |
| 685 | case TK_OR: return OPR_OR; | 685 | case TK_OR: return OPR_OR; |
| @@ -774,17 +774,17 @@ static void block (LexState *ls) { | |||
| 774 | 774 | ||
| 775 | static int assignment (LexState *ls, expdesc *v, int nvars) { | 775 | static int assignment (LexState *ls, expdesc *v, int nvars) { |
| 776 | int left = 0; /* number of values left in the stack after assignment */ | 776 | int left = 0; /* number of values left in the stack after assignment */ |
| 777 | luaX_checklimit(ls, nvars, MAXVARSLH, "variables in a multiple assignment"); | 777 | luaX_checklimit(ls, nvars, MAXVARSLH, l_s("variables in a multiple assignment")); |
| 778 | if (ls->t.token == ',') { /* assignment -> `,' simpleexp assignment */ | 778 | if (ls->t.token == l_c(',')) { /* assignment -> `,' simpleexp assignment */ |
| 779 | expdesc nv; | 779 | expdesc nv; |
| 780 | next(ls); | 780 | next(ls); |
| 781 | simpleexp(ls, &nv); | 781 | simpleexp(ls, &nv); |
| 782 | check_condition(ls, (nv.k != VEXP), "syntax error"); | 782 | check_condition(ls, (nv.k != VEXP), l_s("syntax error")); |
| 783 | left = assignment(ls, &nv, nvars+1); | 783 | left = assignment(ls, &nv, nvars+1); |
| 784 | } | 784 | } |
| 785 | else { /* assignment -> `=' explist1 */ | 785 | else { /* assignment -> `=' explist1 */ |
| 786 | int nexps; | 786 | int nexps; |
| 787 | check(ls, '='); | 787 | check(ls, l_c('=')); |
| 788 | nexps = explist1(ls); | 788 | nexps = explist1(ls); |
| 789 | adjust_mult_assign(ls, nvars, nexps); | 789 | adjust_mult_assign(ls, nvars, nexps); |
| 790 | } | 790 | } |
| @@ -856,17 +856,17 @@ static void forbody (LexState *ls, int nvar, OpCode prepfor, OpCode loopfor) { | |||
| 856 | static void fornum (LexState *ls, TString *varname) { | 856 | static void fornum (LexState *ls, TString *varname) { |
| 857 | /* fornum -> NAME = exp1,exp1[,exp1] forbody */ | 857 | /* fornum -> NAME = exp1,exp1[,exp1] forbody */ |
| 858 | FuncState *fs = ls->fs; | 858 | FuncState *fs = ls->fs; |
| 859 | check(ls, '='); | 859 | check(ls, l_c('=')); |
| 860 | exp1(ls); /* initial value */ | 860 | exp1(ls); /* initial value */ |
| 861 | check(ls, ','); | 861 | check(ls, l_c(',')); |
| 862 | exp1(ls); /* limit */ | 862 | exp1(ls); /* limit */ |
| 863 | if (optional(ls, ',')) | 863 | if (optional(ls, l_c(','))) |
| 864 | exp1(ls); /* optional step */ | 864 | exp1(ls); /* optional step */ |
| 865 | else | 865 | else |
| 866 | luaK_code1(fs, OP_PUSHINT, 1); /* default step */ | 866 | luaK_code1(fs, OP_PUSHINT, 1); /* default step */ |
| 867 | new_localvar(ls, varname, 0); | 867 | new_localvar(ls, varname, 0); |
| 868 | new_localvarstr(ls, "(limit)", 1); | 868 | new_localvarstr(ls, l_s("(limit)"), 1); |
| 869 | new_localvarstr(ls, "(step)", 2); | 869 | new_localvarstr(ls, l_s("(step)"), 2); |
| 870 | forbody(ls, 3, OP_FORPREP, OP_FORLOOP); | 870 | forbody(ls, 3, OP_FORPREP, OP_FORLOOP); |
| 871 | } | 871 | } |
| 872 | 872 | ||
| @@ -874,17 +874,17 @@ static void fornum (LexState *ls, TString *varname) { | |||
| 874 | static void forlist (LexState *ls, TString *indexname) { | 874 | static void forlist (LexState *ls, TString *indexname) { |
| 875 | /* forlist -> NAME,NAME IN exp1 forbody */ | 875 | /* forlist -> NAME,NAME IN exp1 forbody */ |
| 876 | TString *valname; | 876 | TString *valname; |
| 877 | check(ls, ','); | 877 | check(ls, l_c(',')); |
| 878 | valname = str_checkname(ls); | 878 | valname = str_checkname(ls); |
| 879 | /* next test is dirty, but avoids `in' being a reserved word */ | 879 | /* next test is dirty, but avoids `in' being a reserved word */ |
| 880 | check_condition(ls, | 880 | check_condition(ls, |
| 881 | (ls->t.token == TK_NAME && | 881 | (ls->t.token == TK_NAME && |
| 882 | ls->t.seminfo.ts == luaS_newliteral(ls->L, "in")), | 882 | ls->t.seminfo.ts == luaS_newliteral(ls->L, l_s("in"))), |
| 883 | "`in' expected"); | 883 | l_s("`in' expected")); |
| 884 | next(ls); /* skip `in' */ | 884 | next(ls); /* skip `in' */ |
| 885 | exp1(ls); /* table */ | 885 | exp1(ls); /* table */ |
| 886 | new_localvarstr(ls, "(table)", 0); | 886 | new_localvarstr(ls, l_s("(table)"), 0); |
| 887 | new_localvarstr(ls, "(index)", 1); | 887 | new_localvarstr(ls, l_s("(index)"), 1); |
| 888 | new_localvar(ls, indexname, 2); | 888 | new_localvar(ls, indexname, 2); |
| 889 | new_localvar(ls, valname, 3); | 889 | new_localvar(ls, valname, 3); |
| 890 | forbody(ls, 4, OP_LFORPREP, OP_LFORLOOP); | 890 | forbody(ls, 4, OP_LFORPREP, OP_LFORLOOP); |
| @@ -900,9 +900,9 @@ static void forstat (LexState *ls, int line) { | |||
| 900 | next(ls); /* skip `for' */ | 900 | next(ls); /* skip `for' */ |
| 901 | varname = str_checkname(ls); /* first variable name */ | 901 | varname = str_checkname(ls); /* first variable name */ |
| 902 | switch (ls->t.token) { | 902 | switch (ls->t.token) { |
| 903 | case '=': fornum(ls, varname); break; | 903 | case l_c('='): fornum(ls, varname); break; |
| 904 | case ',': forlist(ls, varname); break; | 904 | case l_c(','): forlist(ls, varname); break; |
| 905 | default: luaK_error(ls, "`=' or `,' expected"); | 905 | default: luaK_error(ls, l_s("`=' or `,' expected")); |
| 906 | } | 906 | } |
| 907 | check_match(ls, TK_END, TK_FOR, line); | 907 | check_match(ls, TK_END, TK_FOR, line); |
| 908 | leavebreak(fs, &bl); | 908 | leavebreak(fs, &bl); |
| @@ -949,8 +949,8 @@ static void localstat (LexState *ls) { | |||
| 949 | do { | 949 | do { |
| 950 | next(ls); /* skip LOCAL or `,' */ | 950 | next(ls); /* skip LOCAL or `,' */ |
| 951 | new_localvar(ls, str_checkname(ls), nvars++); | 951 | new_localvar(ls, str_checkname(ls), nvars++); |
| 952 | } while (ls->t.token == ','); | 952 | } while (ls->t.token == l_c(',')); |
| 953 | if (optional(ls, '=')) | 953 | if (optional(ls, l_c('='))) |
| 954 | nexps = explist1(ls); | 954 | nexps = explist1(ls); |
| 955 | else | 955 | else |
| 956 | nexps = 0; | 956 | nexps = 0; |
| @@ -963,13 +963,13 @@ static int funcname (LexState *ls, expdesc *v) { | |||
| 963 | /* funcname -> NAME {`.' NAME} [`:' NAME] */ | 963 | /* funcname -> NAME {`.' NAME} [`:' NAME] */ |
| 964 | int needself = 0; | 964 | int needself = 0; |
| 965 | singlevar(ls, str_checkname(ls), v); | 965 | singlevar(ls, str_checkname(ls), v); |
| 966 | while (ls->t.token == '.') { | 966 | while (ls->t.token == l_c('.')) { |
| 967 | next(ls); | 967 | next(ls); |
| 968 | luaK_tostack(ls, v, 1); | 968 | luaK_tostack(ls, v, 1); |
| 969 | luaK_kstr(ls, checkname(ls)); | 969 | luaK_kstr(ls, checkname(ls)); |
| 970 | v->k = VINDEXED; | 970 | v->k = VINDEXED; |
| 971 | } | 971 | } |
| 972 | if (ls->t.token == ':') { | 972 | if (ls->t.token == l_c(':')) { |
| 973 | needself = 1; | 973 | needself = 1; |
| 974 | next(ls); | 974 | next(ls); |
| 975 | luaK_tostack(ls, v, 1); | 975 | luaK_tostack(ls, v, 1); |
| @@ -997,7 +997,7 @@ static void namestat (LexState *ls) { | |||
| 997 | expdesc v; | 997 | expdesc v; |
| 998 | simpleexp(ls, &v); | 998 | simpleexp(ls, &v); |
| 999 | if (v.k == VEXP) { /* stat -> func */ | 999 | if (v.k == VEXP) { /* stat -> func */ |
| 1000 | check_condition(ls, luaK_lastisopen(fs), "syntax error"); /* an upvalue? */ | 1000 | check_condition(ls, luaK_lastisopen(fs), l_s("syntax error")); /* an upvalue? */ |
| 1001 | luaK_setcallreturns(fs, 0); /* call statement uses no results */ | 1001 | luaK_setcallreturns(fs, 0); /* call statement uses no results */ |
| 1002 | } | 1002 | } |
| 1003 | else { /* stat -> assignment */ | 1003 | else { /* stat -> assignment */ |
| @@ -1011,7 +1011,7 @@ static void retstat (LexState *ls) { | |||
| 1011 | /* stat -> RETURN explist */ | 1011 | /* stat -> RETURN explist */ |
| 1012 | FuncState *fs = ls->fs; | 1012 | FuncState *fs = ls->fs; |
| 1013 | next(ls); /* skip RETURN */ | 1013 | next(ls); /* skip RETURN */ |
| 1014 | if (!block_follow(ls->t.token) && ls->t.token != ';') | 1014 | if (!block_follow(ls->t.token) && ls->t.token != l_c(';')) |
| 1015 | explist1(ls); /* optional return values */ | 1015 | explist1(ls); /* optional return values */ |
| 1016 | luaK_code1(fs, OP_RETURN, ls->fs->nactloc); | 1016 | luaK_code1(fs, OP_RETURN, ls->fs->nactloc); |
| 1017 | fs->stacklevel = fs->nactloc; /* removes all temp values */ | 1017 | fs->stacklevel = fs->nactloc; /* removes all temp values */ |
| @@ -1024,7 +1024,7 @@ static void breakstat (LexState *ls) { | |||
| 1024 | int currentlevel = fs->stacklevel; | 1024 | int currentlevel = fs->stacklevel; |
| 1025 | Breaklabel *bl = fs->bl; | 1025 | Breaklabel *bl = fs->bl; |
| 1026 | if (!bl) | 1026 | if (!bl) |
| 1027 | luaK_error(ls, "no loop to break"); | 1027 | luaK_error(ls, l_s("no loop to break")); |
| 1028 | next(ls); /* skip BREAK */ | 1028 | next(ls); /* skip BREAK */ |
| 1029 | luaK_adjuststack(fs, currentlevel - bl->stacklevel); | 1029 | luaK_adjuststack(fs, currentlevel - bl->stacklevel); |
| 1030 | luaK_concat(fs, &bl->breaklist, luaK_jump(fs)); | 1030 | luaK_concat(fs, &bl->breaklist, luaK_jump(fs)); |
| @@ -1086,14 +1086,14 @@ static void parlist (LexState *ls) { | |||
| 1086 | /* parlist -> [ param { `,' param } ] */ | 1086 | /* parlist -> [ param { `,' param } ] */ |
| 1087 | int nparams = 0; | 1087 | int nparams = 0; |
| 1088 | short dots = 0; | 1088 | short dots = 0; |
| 1089 | if (ls->t.token != ')') { /* is `parlist' not empty? */ | 1089 | if (ls->t.token != l_c(')')) { /* is `parlist' not empty? */ |
| 1090 | do { | 1090 | do { |
| 1091 | switch (ls->t.token) { | 1091 | switch (ls->t.token) { |
| 1092 | case TK_DOTS: next(ls); dots = 1; break; | 1092 | case TK_DOTS: next(ls); dots = 1; break; |
| 1093 | case TK_NAME: new_localvar(ls, str_checkname(ls), nparams++); break; | 1093 | case TK_NAME: new_localvar(ls, str_checkname(ls), nparams++); break; |
| 1094 | default: luaK_error(ls, "<name> or `...' expected"); | 1094 | default: luaK_error(ls, l_s("<name> or `...' expected")); |
| 1095 | } | 1095 | } |
| 1096 | } while (!dots && optional(ls, ',')); | 1096 | } while (!dots && optional(ls, l_c(','))); |
| 1097 | } | 1097 | } |
| 1098 | code_params(ls, nparams, dots); | 1098 | code_params(ls, nparams, dots); |
| 1099 | } | 1099 | } |
| @@ -1104,13 +1104,13 @@ static void body (LexState *ls, int needself, int line) { | |||
| 1104 | FuncState new_fs; | 1104 | FuncState new_fs; |
| 1105 | open_func(ls, &new_fs); | 1105 | open_func(ls, &new_fs); |
| 1106 | new_fs.f->lineDefined = line; | 1106 | new_fs.f->lineDefined = line; |
| 1107 | check(ls, '('); | 1107 | check(ls, l_c('(')); |
| 1108 | if (needself) { | 1108 | if (needself) { |
| 1109 | new_localvarstr(ls, "self", 0); | 1109 | new_localvarstr(ls, l_s("self"), 0); |
| 1110 | adjustlocalvars(ls, 1); | 1110 | adjustlocalvars(ls, 1); |
| 1111 | } | 1111 | } |
| 1112 | parlist(ls); | 1112 | parlist(ls); |
| 1113 | check(ls, ')'); | 1113 | check(ls, l_c(')')); |
| 1114 | chunk(ls); | 1114 | chunk(ls); |
| 1115 | check_match(ls, TK_END, TK_FUNCTION, line); | 1115 | check_match(ls, TK_END, TK_FUNCTION, line); |
| 1116 | close_func(ls); | 1116 | close_func(ls); |
| @@ -1126,7 +1126,7 @@ static void chunk (LexState *ls) { | |||
| 1126 | int islast = 0; | 1126 | int islast = 0; |
| 1127 | while (!islast && !block_follow(ls->t.token)) { | 1127 | while (!islast && !block_follow(ls->t.token)) { |
| 1128 | islast = statement(ls); | 1128 | islast = statement(ls); |
| 1129 | optional(ls, ';'); | 1129 | optional(ls, l_c(';')); |
| 1130 | lua_assert(ls->fs->stacklevel == ls->fs->nactloc); | 1130 | lua_assert(ls->fs->stacklevel == ls->fs->nactloc); |
| 1131 | } | 1131 | } |
| 1132 | } | 1132 | } |
