| 1 |
/********************************************************************** |
| 2 |
|
| 3 |
parse.y - |
| 4 |
|
| 5 |
$Author: matz $ |
| 6 |
$Date: 2001/12/25 15:09:05 $ |
| 7 |
created at: Fri May 28 18:02:42 JST 1993 |
| 8 |
|
| 9 |
Copyright (C) 1993-2001 Yukihiro Matsumoto |
| 10 |
|
| 11 |
**********************************************************************/ |
| 12 |
/* |
| 13 |
NetRuby (C# Parser for Jay) |
| 14 |
Copyright(C) 2001-2002 arton |
| 15 |
|
| 16 |
Permission is granted for use, copying, modification, distribution, |
| 17 |
and distribution of modified versions of this work as long as the |
| 18 |
above (include Yukihiro Matsumoto's) copyright notice is included. |
| 19 |
*/ |
| 20 |
%{ |
| 21 |
|
| 22 |
using System; |
| 23 |
using System.Collections; |
| 24 |
using System.IO; |
| 25 |
using System.Text; |
| 26 |
using System.Text.RegularExpressions; |
| 27 |
using System.Reflection; |
| 28 |
|
| 29 |
namespace arton.NETRuby |
| 30 |
{ |
| 31 |
public class Parser |
| 32 |
{ |
| 33 |
public interface Lexer |
| 34 |
{ |
| 35 |
EXPR State |
| 36 |
{ |
| 37 |
get; |
| 38 |
set; |
| 39 |
} |
| 40 |
void COND_PUSH(); |
| 41 |
void COND_POP(); |
| 42 |
void CMDARG_PUSH(); |
| 43 |
void CMDARG_POP(); |
| 44 |
} |
| 45 |
|
| 46 |
public Parser(NetRuby rb, RThread th, bool in_eval) |
| 47 |
{ |
| 48 |
evalTree = null; |
| 49 |
ruby = rb; |
| 50 |
thread = th; |
| 51 |
compile_for_eval = in_eval; |
| 52 |
} |
| 53 |
|
| 54 |
public Parser(NetRuby rb) |
| 55 |
{ |
| 56 |
evalTree = null; |
| 57 |
ruby = rb; |
| 58 |
thread = rb.GetCurrentContext(); |
| 59 |
compile_for_eval = false; |
| 60 |
} |
| 61 |
|
| 62 |
public object Parse(Lexer lexer) |
| 63 |
{ |
| 64 |
evalTree = null; |
| 65 |
lex = lexer; |
| 66 |
object n = yyparse((yyParser.yyInput)lex, new yydebug.yyDebugSimple()); |
| 67 |
if (n == null) |
| 68 |
return evalTree; |
| 69 |
return null; |
| 70 |
} |
| 71 |
|
| 72 |
private Lexer lex; |
| 73 |
internal RNode evalTree; |
| 74 |
|
| 75 |
internal enum ID |
| 76 |
{ |
| 77 |
SCOPE_SHIFT = 3, |
| 78 |
SCOPE_MASK = 7, |
| 79 |
LOCAL = 1, |
| 80 |
INSTANCE = 2, |
| 81 |
GLOBAL = 3, |
| 82 |
ATTRSET = 4, |
| 83 |
CONST = 5, |
| 84 |
CLASS = 6, |
| 85 |
} |
| 86 |
|
| 87 |
internal string sourcefile |
| 88 |
{ |
| 89 |
get { return thread.file; } |
| 90 |
} |
| 91 |
internal int sourceline |
| 92 |
{ |
| 93 |
get { return thread.line; } |
| 94 |
set { thread.line = value; } |
| 95 |
} |
| 96 |
|
| 97 |
public NetRuby ruby; |
| 98 |
internal RThread thread; |
| 99 |
internal bool verbose |
| 100 |
{ |
| 101 |
get { return ruby.verbose; } |
| 102 |
} |
| 103 |
internal void warn(string s) |
| 104 |
{ |
| 105 |
ruby.warn(s); |
| 106 |
} |
| 107 |
|
| 108 |
internal uint[] Locals |
| 109 |
{ |
| 110 |
get { return thread.Locals; } |
| 111 |
} |
| 112 |
|
| 113 |
private int class_nest = 0; |
| 114 |
private int in_single = 0; |
| 115 |
private int in_def = 0; |
| 116 |
private bool compile_for_eval = false; |
| 117 |
private uint cur_mid = 0; |
| 118 |
private bool in_defined = false; |
| 119 |
|
| 120 |
%} |
| 121 |
|
| 122 |
%token kCLASS |
| 123 |
kMODULE |
| 124 |
kDEF |
| 125 |
kUNDEF |
| 126 |
kBEGIN |
| 127 |
kRESCUE |
| 128 |
kENSURE |
| 129 |
kEND |
| 130 |
kIF |
| 131 |
kUNLESS |
| 132 |
kTHEN |
| 133 |
kELSIF |
| 134 |
kELSE |
| 135 |
kCASE |
| 136 |
kWHEN |
| 137 |
kWHILE |
| 138 |
kUNTIL |
| 139 |
kFOR |
| 140 |
kBREAK |
| 141 |
kNEXT |
| 142 |
kREDO |
| 143 |
kRETRY |
| 144 |
kIN |
| 145 |
kDO |
| 146 |
kDO_COND |
| 147 |
kDO_BLOCK |
| 148 |
kRETURN |
| 149 |
kYIELD |
| 150 |
kSUPER |
| 151 |
kSELF |
| 152 |
kNIL |
| 153 |
kTRUE |
| 154 |
kFALSE |
| 155 |
kAND |
| 156 |
kOR |
| 157 |
kNOT |
| 158 |
kIF_MOD |
| 159 |
kUNLESS_MOD |
| 160 |
kWHILE_MOD |
| 161 |
kUNTIL_MOD |
| 162 |
kRESCUE_MOD |
| 163 |
kALIAS |
| 164 |
kDEFINED |
| 165 |
klBEGIN |
| 166 |
klEND |
| 167 |
k__LINE__ |
| 168 |
k__FILE__ |
| 169 |
|
| 170 |
%token <uint> tIDENTIFIER tFID tGVAR tIVAR tCONSTANT tCVAR |
| 171 |
%token <object> tINTEGER tFLOAT tSTRING tXSTRING tREGEXP |
| 172 |
%token <RNode> tDSTRING tDXSTRING tDREGEXP tNTH_REF tBACK_REF tQWORDS |
| 173 |
|
| 174 |
%type <RNode> singleton string |
| 175 |
%type <object> literal numeric |
| 176 |
%type <RNode> compstmt stmts stmt expr arg primary command command_call method_call |
| 177 |
%type <RNode> if_tail opt_else case_body cases rescue exc_list exc_var ensure |
| 178 |
%type <RNode> args ret_args when_args call_args paren_args opt_paren_args |
| 179 |
%type <RNode> command_args aref_args opt_block_arg block_arg var_ref |
| 180 |
%type <RNode> mrhs mrhs_basic superclass block_call block_command |
| 181 |
%type <RNode> f_arglist f_args f_optarg f_opt f_block_arg opt_f_block_arg |
| 182 |
%type <RNode> assoc_list assocs assoc undef_list backref |
| 183 |
%type <RNode> block_var opt_block_var brace_block do_block lhs none |
| 184 |
%type <RNode> mlhs mlhs_head mlhs_basic mlhs_entry mlhs_item mlhs_node |
| 185 |
%type <uint> fitem variable sym symbol operation operation2 operation3 |
| 186 |
%type <uint> cname fname op f_rest_arg |
| 187 |
%type <int> f_norm_arg f_arg |
| 188 |
%token tUPLUS /* unary+ */ |
| 189 |
%token tUMINUS /* unary- */ |
| 190 |
%token tPOW /* ** */ |
| 191 |
%token tCMP /* <=> */ |
| 192 |
%token tEQ /* == */ |
| 193 |
%token tEQQ /* === */ |
| 194 |
%token tNEQ /* != */ |
| 195 |
%token tGEQ /* >= */ |
| 196 |
%token tLEQ /* <= */ |
| 197 |
%token tANDOP tOROP /* && and || */ |
| 198 |
%token tMATCH tNMATCH /* =~ and !~ */ |
| 199 |
%token tDOT2 tDOT3 /* .. and ... */ |
| 200 |
%token tAREF tASET /* [] and []= */ |
| 201 |
%token tLSHFT tRSHFT /* << and >> */ |
| 202 |
%token tCOLON2 /* :: */ |
| 203 |
%token tCOLON3 /* :: at EXPR.BEG */ |
| 204 |
%token <uint> tOP_ASGN /* +=, -= etc. */ |
| 205 |
%token tASSOC /* => */ |
| 206 |
%token tLPAREN /* ( */ |
| 207 |
%token tLBRACK /* [ */ |
| 208 |
%token tLBRACE /* { */ |
| 209 |
%token tSTAR /* * */ |
| 210 |
%token tAMPER /* & */ |
| 211 |
%token tSYMBEG |
| 212 |
|
| 213 |
/* |
| 214 |
* precedence table |
| 215 |
*/ |
| 216 |
|
| 217 |
%left kIF_MOD kUNLESS_MOD kWHILE_MOD kUNTIL_MOD kRESCUE_MOD |
| 218 |
%left kOR kAND |
| 219 |
%right kNOT |
| 220 |
%nonassoc kDEFINED |
| 221 |
%right '=' tOP_ASGN |
| 222 |
%right '?' ':' |
| 223 |
%nonassoc tDOT2 tDOT3 |
| 224 |
%left tOROP |
| 225 |
%left tANDOP |
| 226 |
%nonassoc tCMP tEQ tEQQ tNEQ tMATCH tNMATCH |
| 227 |
%left '>' tGEQ '<' tLEQ |
| 228 |
%left '|' '^' |
| 229 |
%left '&' |
| 230 |
%left tLSHFT tRSHFT |
| 231 |
%left '+' '-' |
| 232 |
%left '*' '/' '%' |
| 233 |
%right '!' '~' tUPLUS tUMINUS |
| 234 |
%right tPOW |
| 235 |
|
| 236 |
%token LAST_TOKEN |
| 237 |
|
| 238 |
%% |
| 239 |
program : { |
| 240 |
$$ = thread.dyna_vars; |
| 241 |
lex.State = EXPR.BEG; |
| 242 |
thread.TopLocalInit(); |
| 243 |
/* |
| 244 |
if ((VALUE)ruby_class == rb_cObject) class_nest = 0; |
| 245 |
else class_nest = 1; |
| 246 |
*/ |
| 247 |
} |
| 248 |
compstmt |
| 249 |
{ |
| 250 |
if ($2 != null && !compile_for_eval) { |
| 251 |
/* last expression should not be void */ |
| 252 |
if ($2 is RNBlock) |
| 253 |
{ |
| 254 |
RNode node = $2; |
| 255 |
while (node.next != null) { |
| 256 |
node = node.next; |
| 257 |
} |
| 258 |
void_expr(node.head); |
| 259 |
} |
| 260 |
else |
| 261 |
{ |
| 262 |
void_expr($2); |
| 263 |
} |
| 264 |
} |
| 265 |
evalTree = block_append(evalTree, $2); |
| 266 |
thread.TopLocalSetup(); |
| 267 |
class_nest = 0; |
| 268 |
thread.dyna_vars = $<RVarmap>1; |
| 269 |
} |
| 270 |
|
| 271 |
compstmt : stmts opt_terms |
| 272 |
{ |
| 273 |
void_stmts($1); |
| 274 |
$$ = $1; |
| 275 |
} |
| 276 |
|
| 277 |
stmts : none |
| 278 |
| stmt |
| 279 |
{ |
| 280 |
$$ = new RNNewLine(thread, $1); |
| 281 |
} |
| 282 |
| stmts terms stmt |
| 283 |
{ |
| 284 |
$$ = block_append($1, new RNNewLine(thread, $3)); |
| 285 |
} |
| 286 |
| error stmt |
| 287 |
{ |
| 288 |
$$ = $2; |
| 289 |
} |
| 290 |
|
| 291 |
stmt : kALIAS fitem {lex.State = EXPR.FNAME;} fitem |
| 292 |
{ |
| 293 |
if (in_def != 0 || in_single != 0) |
| 294 |
yyerror("alias within method"); |
| 295 |
$$ = new RNAlias(thread, $2, $4); |
| 296 |
} |
| 297 |
| kALIAS tGVAR tGVAR |
| 298 |
{ |
| 299 |
if (in_def != 0 || in_single != 0) |
| 300 |
yyerror("alias within method"); |
| 301 |
$$ = new RNVAlias(thread, $2, $3); |
| 302 |
} |
| 303 |
| kALIAS tGVAR tBACK_REF |
| 304 |
{ |
| 305 |
if (in_def != 0 || in_single != 0) |
| 306 |
yyerror("alias within method"); |
| 307 |
string buf = "$" + Convert.ToChar($3.nth); |
| 308 |
$$ = new RNVAlias(thread, $2, intern(buf)); |
| 309 |
} |
| 310 |
| kALIAS tGVAR tNTH_REF |
| 311 |
{ |
| 312 |
yyerror("can't make alias for the number variables"); |
| 313 |
$$ = null; |
| 314 |
} |
| 315 |
| kUNDEF undef_list |
| 316 |
{ |
| 317 |
if (in_def != 0 || in_single != 0) |
| 318 |
yyerror("undef within method"); |
| 319 |
$$ = $2; |
| 320 |
} |
| 321 |
| stmt kIF_MOD expr |
| 322 |
{ |
| 323 |
value_expr($3); |
| 324 |
$$ = new RNIf(thread, cond($3), $1); |
| 325 |
} |
| 326 |
| stmt kUNLESS_MOD expr |
| 327 |
{ |
| 328 |
value_expr($3); |
| 329 |
$$ = new RNUnless(thread, cond($3), $1); |
| 330 |
} |
| 331 |
| stmt kWHILE_MOD expr |
| 332 |
{ |
| 333 |
value_expr($3); |
| 334 |
if ($1 != null && $1 is RNBegin) { |
| 335 |
$$ = new RNWhile(thread, cond($3), $1.body, false); |
| 336 |
} |
| 337 |
else { |
| 338 |
$$ = new RNWhile(thread, cond($3), $1, true); |
| 339 |
} |
| 340 |
} |
| 341 |
| stmt kUNTIL_MOD expr |
| 342 |
{ |
| 343 |
value_expr($3); |
| 344 |
if ($1 != null && $1 is RNBegin) { |
| 345 |
$$ = new RNUntil(thread, cond($3), $1.body, false); |
| 346 |
} |
| 347 |
else { |
| 348 |
$$ = new RNUntil(thread, cond($3), $1, true); |
| 349 |
} |
| 350 |
} |
| 351 |
| stmt kRESCUE_MOD stmt |
| 352 |
{ |
| 353 |
$$ = new RNRescue(thread, $1, new RNResBody(thread, null, $3, null), null); |
| 354 |
} |
| 355 |
| klBEGIN |
| 356 |
{ |
| 357 |
if (in_def != 0 || in_single != 0) { |
| 358 |
yyerror("BEGIN in method"); |
| 359 |
} |
| 360 |
thread.LocalPush(); |
| 361 |
} |
| 362 |
'{' compstmt '}' |
| 363 |
{ |
| 364 |
thread.evalTreeBegin = block_append(thread.evalTreeBegin, |
| 365 |
new RNPreExe(thread, $4)); |
| 366 |
thread.LocalPop(); |
| 367 |
$$ = null; |
| 368 |
} |
| 369 |
| klEND '{' compstmt '}' |
| 370 |
{ |
| 371 |
if (compile_for_eval && (in_def != 0|| in_single != 0)) { |
| 372 |
yyerror("END in method; use at_exit"); |
| 373 |
} |
| 374 |
|
| 375 |
$$ = new RNIter(thread, null, new RNPostExe(thread), $3); |
| 376 |
} |
| 377 |
| lhs '=' command_call |
| 378 |
{ |
| 379 |
value_expr($3); |
| 380 |
$$ = node_assign($1, $3); |
| 381 |
} |
| 382 |
| mlhs '=' command_call |
| 383 |
{ |
| 384 |
value_expr($3); |
| 385 |
$1.val = $3; |
| 386 |
$$ = $1; |
| 387 |
} |
| 388 |
| lhs '=' mrhs_basic |
| 389 |
{ |
| 390 |
$$ = node_assign($1, $3); |
| 391 |
} |
| 392 |
| expr |
| 393 |
|
| 394 |
expr : mlhs '=' mrhs |
| 395 |
{ |
| 396 |
// value_expr($3); // nakada ruby-dev:15905 |
| 397 |
$1.val = $3; |
| 398 |
$$ = $1; |
| 399 |
} |
| 400 |
| kRETURN ret_args |
| 401 |
{ |
| 402 |
if (!compile_for_eval && in_def != 0 && in_single != 0) |
| 403 |
yyerror("return appeared outside of method"); |
| 404 |
$$ = new RNReturn(thread, $2); |
| 405 |
} |
| 406 |
| command_call |
| 407 |
| expr kAND expr |
| 408 |
{ |
| 409 |
$$ = logop(typeof(RNAnd), $1, $3); |
| 410 |
} |
| 411 |
| expr kOR expr |
| 412 |
{ |
| 413 |
$$ = logop(typeof(RNOr), $1, $3); |
| 414 |
} |
| 415 |
| kNOT expr |
| 416 |
{ |
| 417 |
value_expr($2); |
| 418 |
$$ = new RNNot(thread, cond($2)); |
| 419 |
} |
| 420 |
| '!' command_call |
| 421 |
{ |
| 422 |
$$ = new RNNot(thread, cond($2)); |
| 423 |
} |
| 424 |
| arg |
| 425 |
|
| 426 |
command_call : command |
| 427 |
| block_command |
| 428 |
|
| 429 |
block_command : block_call |
| 430 |
| block_call '.' operation2 command_args |
| 431 |
{ |
| 432 |
value_expr($1); |
| 433 |
$$ = new_call($1, $3, $4); |
| 434 |
} |
| 435 |
| block_call tCOLON2 operation2 command_args |
| 436 |
{ |
| 437 |
value_expr($1); |
| 438 |
$$ = new_call($1, $3, $4); |
| 439 |
} |
| 440 |
|
| 441 |
command : operation command_args |
| 442 |
{ |
| 443 |
$$ = new_fcall($1, $2); |
| 444 |
$<RNode>$.FixPos($2); |
| 445 |
} |
| 446 |
| primary '.' operation2 command_args |
| 447 |
{ |
| 448 |
value_expr($1); |
| 449 |
$$ = new_call($1, $3, $4); |
| 450 |
$<RNode>$.FixPos($1); |
| 451 |
} |
| 452 |
| primary tCOLON2 operation2 command_args |
| 453 |
{ |
| 454 |
value_expr($1); |
| 455 |
$$ = new_call($1, $3, $4); |
| 456 |
$<RNode>$.FixPos($1); |
| 457 |
} |
| 458 |
| kSUPER command_args |
| 459 |
{ |
| 460 |
if (!compile_for_eval && in_def == 0 && in_single == 0) |
| 461 |
yyerror("super called outside of method"); |
| 462 |
$$ = new_super($2); |
| 463 |
$<RNode>$.FixPos($2); |
| 464 |
} |
| 465 |
| kYIELD ret_args |
| 466 |
{ |
| 467 |
$$ = new RNYield(thread, $2); |
| 468 |
$<RNode>$.FixPos($2); |
| 469 |
} |
| 470 |
|
| 471 |
mlhs : mlhs_basic |
| 472 |
| tLPAREN mlhs_entry ')' |
| 473 |
{ |
| 474 |
$$ = $2; |
| 475 |
} |
| 476 |
|
| 477 |
mlhs_entry : mlhs_basic |
| 478 |
| tLPAREN mlhs_entry ')' |
| 479 |
{ |
| 480 |
$$ = new RNMAsgn(thread, new RNArray(thread, $2)); |
| 481 |
} |
| 482 |
|
| 483 |
mlhs_basic : mlhs_head |
| 484 |
{ |
| 485 |
$$ = new RNMAsgn(thread, $1); |
| 486 |
} |
| 487 |
| mlhs_head mlhs_item |
| 488 |
{ |
| 489 |
$$ = new RNMAsgn(thread, RNode.list_append(thread,$1,$2)); |
| 490 |
} |
| 491 |
| mlhs_head tSTAR mlhs_node |
| 492 |
{ |
| 493 |
$$ = new RNMAsgn(thread, $1, $3); |
| 494 |
} |
| 495 |
| mlhs_head tSTAR |
| 496 |
{ |
| 497 |
$$ = new RNMAsgn(thread, $1, -1); |
| 498 |
} |
| 499 |
| tSTAR mlhs_node |
| 500 |
{ |
| 501 |
$$ = new RNMAsgn(thread, null, $2); |
| 502 |
} |
| 503 |
| tSTAR |
| 504 |
{ |
| 505 |
$$ = new RNMAsgn(thread, null, -1); |
| 506 |
} |
| 507 |
|
| 508 |
mlhs_item : mlhs_node |
| 509 |
| tLPAREN mlhs_entry ')' |
| 510 |
{ |
| 511 |
$$ = $2; |
| 512 |
} |
| 513 |
|
| 514 |
mlhs_head : mlhs_item ',' |
| 515 |
{ |
| 516 |
$$ = new RNArray(thread, $1); |
| 517 |
} |
| 518 |
| mlhs_head mlhs_item ',' |
| 519 |
{ |
| 520 |
$$ = RNode.list_append(thread, $1, $2); |
| 521 |
} |
| 522 |
|
| 523 |
mlhs_node : variable |
| 524 |
{ |
| 525 |
$$ = assignable($1, null); |
| 526 |
} |
| 527 |
| primary '[' aref_args ']' |
| 528 |
{ |
| 529 |
$$ = aryset($1, $3); |
| 530 |
} |
| 531 |
| primary '.' tIDENTIFIER |
| 532 |
{ |
| 533 |
$$ = attrset($1, $3); |
| 534 |
} |
| 535 |
| primary tCOLON2 tIDENTIFIER |
| 536 |
{ |
| 537 |
$$ = attrset($1, $3); |
| 538 |
} |
| 539 |
| primary '.' tCONSTANT |
| 540 |
{ |
| 541 |
$$ = attrset($1, $3); |
| 542 |
} |
| 543 |
| backref |
| 544 |
{ |
| 545 |
backref_error($1); |
| 546 |
$$ = null; |
| 547 |
} |
| 548 |
|
| 549 |
lhs : variable |
| 550 |
{ |
| 551 |
$$ = assignable($1, null); |
| 552 |
} |
| 553 |
| primary '[' aref_args ']' |
| 554 |
{ |
| 555 |
$$ = aryset($1, $3); |
| 556 |
} |
| 557 |
| primary '.' tIDENTIFIER |
| 558 |
{ |
| 559 |
$$ = attrset($1, $3); |
| 560 |
} |
| 561 |
| primary tCOLON2 tIDENTIFIER |
| 562 |
{ |
| 563 |
$$ = attrset($1, $3); |
| 564 |
} |
| 565 |
| primary '.' tCONSTANT |
| 566 |
{ |
| 567 |
$$ = attrset($1, $3); |
| 568 |
} |
| 569 |
| backref |
| 570 |
{ |
| 571 |
backref_error($1); |
| 572 |
$$ = null; |
| 573 |
} |
| 574 |
|
| 575 |
cname : tIDENTIFIER |
| 576 |
{ |
| 577 |
yyerror("class/module name must be CONSTANT"); |
| 578 |
} |
| 579 |
| tCONSTANT |
| 580 |
|
| 581 |
fname : tIDENTIFIER |
| 582 |
| tCONSTANT |
| 583 |
| tFID |
| 584 |
| op |
| 585 |
{ |
| 586 |
lex.State = EXPR.END; |
| 587 |
if ($<object>1 is int) |
| 588 |
$$ = $<int>1; |
| 589 |
else |
| 590 |
$$ = $<char>1; |
| 591 |
} |
| 592 |
| reswords |
| 593 |
{ |
| 594 |
lex.State = EXPR.END; |
| 595 |
$$ = $<uint>1; |
| 596 |
} |
| 597 |
|
| 598 |
fitem : fname |
| 599 |
| symbol |
| 600 |
|
| 601 |
undef_list : fitem |
| 602 |
{ |
| 603 |
$$ = new RNUndef(thread, $1); |
| 604 |
} |
| 605 |
| undef_list ',' {lex.State = EXPR.FNAME;} fitem |
| 606 |
{ |
| 607 |
$$ = block_append($1, new RNUndef(thread, $4)); |
| 608 |
} |
| 609 |
|
| 610 |
op : '|' { $$ = '|'; } |
| 611 |
| '^' { $$ = '^'; } |
| 612 |
| '&' { $$ = '&'; } |
| 613 |
| tCMP { $$ = Token.tCMP; } |
| 614 |
| tEQ { $$ = Token.tEQ; } |
| 615 |
| tEQQ { $$ = Token.tEQQ; } |
| 616 |
| tMATCH { $$ = Token.tMATCH; } |
| 617 |
| '>' { $$ = '>'; } |
| 618 |
| tGEQ { $$ = Token.tGEQ; } |
| 619 |
| '<' { $$ = '<'; } |
| 620 |
| tLEQ { $$ = Token.tLEQ; } |
| 621 |
| tLSHFT { $$ = Token.tLSHFT; } |
| 622 |
| tRSHFT { $$ = Token.tRSHFT; } |
| 623 |
| '+' { $$ = '+'; } |
| 624 |
| '-' { $$ = '-'; } |
| 625 |
| '*' { $$ = '*'; } |
| 626 |
| tSTAR { $$ = '*'; } |
| 627 |
| '/' { $$ = '/'; } |
| 628 |
| '%' { $$ = '%'; } |
| 629 |
| tPOW { $$ = Token.tPOW; } |
| 630 |
| '~' { $$ = '~'; } |
| 631 |
| tUPLUS { $$ = Token.tUPLUS; } |
| 632 |
| tUMINUS { $$ = Token.tUMINUS; } |
| 633 |
| tAREF { $$ = Token.tAREF; } |
| 634 |
| tASET { $$ = Token.tASET; } |
| 635 |
| '`' { $$ = '`'; } |
| 636 |
|
| 637 |
reswords : k__LINE__ | k__FILE__ | klBEGIN | klEND |
| 638 |
| kALIAS | kAND | kBEGIN | kBREAK | kCASE | kCLASS | kDEF |
| 639 |
| kDEFINED | kDO | kELSE | kELSIF | kEND | kENSURE | kFALSE |
| 640 |
| kFOR | kIF_MOD | kIN | kMODULE | kNEXT | kNIL | kNOT |
| 641 |
| kOR | kREDO | kRESCUE | kRETRY | kRETURN | kSELF | kSUPER |
| 642 |
| kTHEN | kTRUE | kUNDEF | kUNLESS_MOD | kUNTIL_MOD | kWHEN |
| 643 |
| kWHILE_MOD | kYIELD | kRESCUE_MOD |
| 644 |
|
| 645 |
arg : lhs '=' arg |
| 646 |
{ |
| 647 |
value_expr($3); |
| 648 |
$$ = node_assign($1, $3); |
| 649 |
} |
| 650 |
| variable tOP_ASGN {$$ = assignable($1, null);} arg |
| 651 |
{ |
| 652 |
if ($<RNode>3 != null) { |
| 653 |
if ($<char>2 == Token.tOROP) { |
| 654 |
$<RNode>3.val = $4; |
| 655 |
$$ = new RNOpAsgnOr(thread, gettable($1), $<RNode>3); |
| 656 |
if (is_instance_id($1)) { |
| 657 |
$<RNode>$.aid = $1; |
| 658 |
} |
| 659 |
} |
| 660 |
else if ($<char>2 == Token.tANDOP) { |
| 661 |
$<RNode>3.val = $4; |
| 662 |
$$ = new RNOpAsgnAnd(thread, gettable($1), $<RNode>3); |
| 663 |
} |
| 664 |
else { |
| 665 |
$$ = $<RNode>3; |
| 666 |
$<RNode>$.val = call_op(gettable($1),$<char>2,1,$4); |
| 667 |
} |
| 668 |
$<RNode>$.FixPos($4); |
| 669 |
} |
| 670 |
else { |
| 671 |
$$ = null; |
| 672 |
} |
| 673 |
} |
| 674 |
| primary '[' aref_args ']' tOP_ASGN arg |
| 675 |
{ |
| 676 |
RNode args = new RNArray(thread, $6); |
| 677 |
|
| 678 |
RNode tail = RNode.list_append(thread, $3, new RNNil(thread)); |
| 679 |
RNode.list_concat(args, tail); |
| 680 |
uint id = $<char>5; |
| 681 |
if (id == Token.tOROP) { |
| 682 |
id = 0; |
| 683 |
} |
| 684 |
else if (id == Token.tANDOP) { |
| 685 |
id = 1; |
| 686 |
} |
| 687 |
$$ = new RNOpAsgn1(thread, $1, id, args); |
| 688 |
$<RNode>$.FixPos($1); |
| 689 |
} |
| 690 |
| primary '.' tIDENTIFIER tOP_ASGN arg |
| 691 |
{ |
| 692 |
uint id = $4; |
| 693 |
if (id == Token.tOROP) { |
| 694 |
id = 0; |
| 695 |
} |
| 696 |
else if (id == Token.tANDOP) { |
| 697 |
id = 1; |
| 698 |
} |
| 699 |
$$ = new RNOpAsgn2(thread, $1, $3, id, $5); |
| 700 |
$<RNode>$.FixPos($1); |
| 701 |
} |
| 702 |
| primary '.' tCONSTANT tOP_ASGN arg |
| 703 |
{ |
| 704 |
uint id = $4; |
| 705 |
if (id == Token.tOROP) { |
| 706 |
id = 0; |
| 707 |
} |
| 708 |
else if (id == Token.tANDOP) { |
| 709 |
id = 1; |
| 710 |
} |
| 711 |
$$ = new RNOpAsgn2(thread, $1, $3, id, $5); |
| 712 |
$<RNode>$.FixPos($1); |
| 713 |
} |
| 714 |
| primary tCOLON2 tIDENTIFIER tOP_ASGN arg |
| 715 |
{ |
| 716 |
uint id = $4; |
| 717 |
if (id == Token.tOROP) { |
| 718 |
id = 0; |
| 719 |
} |
| 720 |
else if (id == Token.tANDOP) { |
| 721 |
id = 1; |
| 722 |
} |
| 723 |
$$ = new RNOpAsgn2(thread, $1, $3, id, $5); |
| 724 |
$<RNode>$.FixPos($1); |
| 725 |
} |
| 726 |
| backref tOP_ASGN arg |
| 727 |
{ |
| 728 |
backref_error($1); |
| 729 |
$$ = null; |
| 730 |
} |
| 731 |
| arg tDOT2 arg |
| 732 |
{ |
| 733 |
$$ = new RNDot2(thread, $1, $3); |
| 734 |
} |
| 735 |
| arg tDOT3 arg |
| 736 |
{ |
| 737 |
$$ = new RNDot3(thread, $1, $3); |
| 738 |
} |
| 739 |
| arg '+' arg |
| 740 |
{ |
| 741 |
$$ = call_op($1, '+', 1, $3); |
| 742 |
} |
| 743 |
| arg '-' arg |
| 744 |
{ |
| 745 |
$$ = call_op($1, '-', 1, $3); |
| 746 |
} |
| 747 |
| arg '*' arg |
| 748 |
{ |
| 749 |
$$ = call_op($1, '*', 1, $3); |
| 750 |
} |
| 751 |
| arg '/' arg |
| 752 |
{ |
| 753 |
$$ = call_op($1, '/', 1, $3); |
| 754 |
} |
| 755 |
| arg '%' arg |
| 756 |
{ |
| 757 |
$$ = call_op($1, '%', 1, $3); |
| 758 |
} |
| 759 |
| arg tPOW arg |
| 760 |
{ |
| 761 |
bool need_negate = false; |
| 762 |
#if UMINUS |
| 763 |
if ($1 is RNLit) { |
| 764 |
if ($1.lit is long || |
| 765 |
$1.lit is double || |
| 766 |
$1.lit is int /* || |
| 767 |
$1.lit is BIGNUM */ |
| 768 |
) |
| 769 |
{ |
| 770 |
if (RTEST(rb_funcall($1.lit,'<',1,0))) { |
| 771 |
$1.lit = rb_funcall($1.lit,intern("-@"),0,0); |
| 772 |
need_negate = true; |
| 773 |
} |
| 774 |
} |
| 775 |
} |
| 776 |
#endif |
| 777 |
$$ = call_op($<RNode>1, Token.tPOW, 1, $<RNode>3); |
| 778 |
if (need_negate) { |
| 779 |
$$ = call_op($<RNode>$, Token.tUMINUS, 0, null); |
| 780 |
} |
| 781 |
} |
| 782 |
| tUPLUS arg |
| 783 |
{ |
| 784 |
if ($2 != null && $2 is RNLit) { |
| 785 |
$$ = $2; |
| 786 |
} |
| 787 |
else { |
| 788 |
$$ = call_op($2, Token.tUPLUS, 0, null); |
| 789 |
} |
| 790 |
} |
| 791 |
| tUMINUS arg |
| 792 |
{ |
| 793 |
if ($2 != null && $2 is RNLit && ($2.lit is int || |
| 794 |
$2.lit is long)) { |
| 795 |
if ($2.lit is int) |
| 796 |
{ |
| 797 |
int i = (int)$2.lit; |
| 798 |
$2.lit = -i; |
| 799 |
} |
| 800 |
else |
| 801 |
{ |
| 802 |
long i = (long)$2.lit; |
| 803 |
$2.lit = -i; |
| 804 |
} |
| 805 |
$$ = $2; |
| 806 |
} |
| 807 |
else { |
| 808 |
$$ = call_op($2, Token.tUMINUS, 0, null); |
| 809 |
} |
| 810 |
} |
| 811 |
| arg '|' arg |
| 812 |
{ |
| 813 |
$$ = call_op($1, '|', 1, $3); |
| 814 |
} |
| 815 |
| arg '^' arg |
| 816 |
{ |
| 817 |
$$ = call_op($1, '^', 1, $3); |
| 818 |
} |
| 819 |
| arg '&' arg |
| 820 |
{ |
| 821 |
$$ = call_op($1, '&', 1, $3); |
| 822 |
} |
| 823 |
| arg tCMP arg |
| 824 |
{ |
| 825 |
$$ = call_op($1, Token.tCMP, 1, $3); |
| 826 |
} |
| 827 |
| arg '>' arg |
| 828 |
{ |
| 829 |
$$ = call_op($1, '>', 1, $3); |
| 830 |
} |
| 831 |
| arg tGEQ arg |
| 832 |
{ |
| 833 |
$$ = call_op($1, Token.tGEQ, 1, $3); |
| 834 |
} |
| 835 |
| arg '<' arg |
| 836 |
{ |
| 837 |
$$ = call_op($1, '<', 1, $3); |
| 838 |
} |
| 839 |
| arg tLEQ arg |
| 840 |
{ |
| 841 |
$$ = call_op($1, Token.tLEQ, 1, $3); |
| 842 |
} |
| 843 |
| arg tEQ arg |
| 844 |
{ |
| 845 |
$$ = call_op($1, Token.tEQ, 1, $3); |
| 846 |
} |
| 847 |
| arg tEQQ arg |
| 848 |
{ |
| 849 |
$$ = call_op($1, Token.tEQQ, 1, $3); |
| 850 |
} |
| 851 |
| arg tNEQ arg |
| 852 |
{ |
| 853 |
$$ = new RNNot(thread, call_op($1, Token.tEQ, 1, $3)); |
| 854 |
} |
| 855 |
| arg tMATCH arg |
| 856 |
{ |
| 857 |
$$ = match_gen($1, $3); |
| 858 |
} |
| 859 |
| arg tNMATCH arg |
| 860 |
{ |
| 861 |
$$ = new RNNot(thread, match_gen($1, $3)); |
| 862 |
} |
| 863 |
| '!' arg |
| 864 |
{ |
| 865 |
value_expr($2); |
| 866 |
$$ = new RNNot(thread, cond($2)); |
| 867 |
} |
| 868 |
| '~' arg |
| 869 |
{ |
| 870 |
$$ = call_op($2, '~', 0, null); |
| 871 |
} |
| 872 |
| arg tLSHFT arg |
| 873 |
{ |
| 874 |
$$ = call_op($1, Token.tLSHFT, 1, $3); |
| 875 |
} |
| 876 |
| arg tRSHFT arg |
| 877 |
{ |
| 878 |
$$ = call_op($1, Token.tRSHFT, 1, $3); |
| 879 |
} |
| 880 |
| arg tANDOP arg |
| 881 |
{ |
| 882 |
$$ = logop(typeof(RNAnd), $1, $3); |
| 883 |
} |
| 884 |
| arg tOROP arg |
| 885 |
{ |
| 886 |
$$ = logop(typeof(RNOr), $1, $3); |
| 887 |
} |
| 888 |
| kDEFINED opt_nl {in_defined = true;} arg |
| 889 |
{ |
| 890 |
in_defined = false; |
| 891 |
$$ = new RNDefined(thread, $4); |
| 892 |
} |
| 893 |
| arg '?' arg ':' arg |
| 894 |
{ |
| 895 |
value_expr($1); |
| 896 |
$$ = new RNIf(thread, cond($1), $3, $5); |
| 897 |
} |
| 898 |
| primary |
| 899 |
{ |
| 900 |
$$ = $1; |
| 901 |
} |
| 902 |
|
| 903 |
aref_args : none |
| 904 |
| command_call opt_nl |
| 905 |
{ |
| 906 |
$$ = new RNArray(thread, $1); |
| 907 |
} |
| 908 |
| args ',' command_call opt_nl |
| 909 |
{ |
| 910 |
$$ = RNode.list_append(thread, $1, $3); |
| 911 |
} |
| 912 |
| args trailer |
| 913 |
{ |
| 914 |
$$ = $1; |
| 915 |
} |
| 916 |
| args ',' tSTAR arg opt_nl |
| 917 |
{ |
| 918 |
value_expr($4); |
| 919 |
$$ = arg_concat($1, $4); |
| 920 |
} |
| 921 |
| assocs trailer |
| 922 |
{ |
| 923 |
$$ = new RNArray(thread, new RNHash(thread, $1)); |
| 924 |
} |
| 925 |
| tSTAR arg opt_nl |
| 926 |
{ |
| 927 |
value_expr($2); |
| 928 |
$$ = new RNRestArgs(thread, $2); |
| 929 |
} |
| 930 |
|
| 931 |
paren_args : '(' none ')' |
| 932 |
{ |
| 933 |
$$ = $2; |
| 934 |
} |
| 935 |
| '(' call_args opt_nl ')' |
| 936 |
{ |
| 937 |
$$ = $2; |
| 938 |
} |
| 939 |
| '(' block_call opt_nl ')' |
| 940 |
{ |
| 941 |
$$ = new RNArray(thread, $2); |
| 942 |
} |
| 943 |
| '(' args ',' block_call opt_nl ')' |
| 944 |
{ |
| 945 |
$$ = RNode.list_append(thread, $2, $4); |
| 946 |
} |
| 947 |
|
| 948 |
opt_paren_args : none |
| 949 |
| paren_args |
| 950 |
|
| 951 |
call_args : command |
| 952 |
{ |
| 953 |
$$ = new RNArray(thread, $1); |
| 954 |
} |
| 955 |
| args ',' command |
| 956 |
{ |
| 957 |
$$ = RNode.list_append(thread, $1, $3); |
| 958 |
} |
| 959 |
| args opt_block_arg |
| 960 |
{ |
| 961 |
$$ = arg_blk_pass($1, $2); |
| 962 |
} |
| 963 |
| args ',' tSTAR arg opt_block_arg |
| 964 |
{ |
| 965 |
value_expr($4); |
| 966 |
$$ = arg_concat($1, $4); |
| 967 |
$$ = arg_blk_pass($<RNode>$, $5); |
| 968 |
} |
| 969 |
| assocs opt_block_arg |
| 970 |
{ |
| 971 |
$$ = new RNArray(thread, new RNHash(thread, $1)); |
| 972 |
$$ = arg_blk_pass($<RNode>$, $2); |
| 973 |
} |
| 974 |
| assocs ',' tSTAR arg opt_block_arg |
| 975 |
{ |
| 976 |
value_expr($4); |
| 977 |
$$ = arg_concat(new RNArray(thread, new RNHash(thread, $1)), $4); |
| 978 |
$$ = arg_blk_pass($<RNode>$, $5); |
| 979 |
} |
| 980 |
| args ',' assocs opt_block_arg |
| 981 |
{ |
| 982 |
$$ = RNode.list_append(thread, $1, new RNHash(thread, $3)); |
| 983 |
$$ = arg_blk_pass($<RNode>$, $4); |
| 984 |
} |
| 985 |
| args ',' assocs ',' tSTAR arg opt_block_arg |
| 986 |
{ |
| 987 |
value_expr($6); |
| 988 |
$$ = arg_concat(RNode.list_append(thread, $1, new RNHash(thread, $3)), $6); |
| 989 |
$$ = arg_blk_pass($<RNode>$, $7); |
| 990 |
} |
| 991 |
| tSTAR arg opt_block_arg |
| 992 |
{ |
| 993 |
value_expr($2); |
| 994 |
$$ = arg_blk_pass(new RNRestArgs(thread, $2), $3); |
| 995 |
} |
| 996 |
| block_arg |
| 997 |
|
| 998 |
command_args : {lex.CMDARG_PUSH();} call_args |
| 999 |
{ |
| 1000 |
lex.CMDARG_POP(); |
| 1001 |
$$ = $2; |
| 1002 |
} |
| 1003 |
|
| 1004 |
block_arg : tAMPER arg |
| 1005 |
{ |
| 1006 |
value_expr($2); |
| 1007 |
$$ = new RNBlockPass(thread, $2); |
| 1008 |
} |
| 1009 |
|
| 1010 |
opt_block_arg : ',' block_arg |
| 1011 |
{ |
| 1012 |
$$ = $2; |
| 1013 |
} |
| 1014 |
| none |
| 1015 |
|
| 1016 |
args : arg |
| 1017 |
{ |
| 1018 |
value_expr($1); |
| 1019 |
$$ = new RNArray(thread, $1); |
| 1020 |
} |
| 1021 |
| args ',' arg |
| 1022 |
{ |
| 1023 |
value_expr($3); |
| 1024 |
$$ = RNode.list_append(thread, $1, $3); |
| 1025 |
} |
| 1026 |
|
| 1027 |
mrhs : arg |
| 1028 |
{ |
| 1029 |
value_expr($1); |
| 1030 |
$$ = $1; |
| 1031 |
} |
| 1032 |
| mrhs_basic |
| 1033 |
|
| 1034 |
mrhs_basic : args ',' arg |
| 1035 |
{ |
| 1036 |
value_expr($3); |
| 1037 |
$$ = RNode.list_append(thread, $1, $3); |
| 1038 |
} |
| 1039 |
| args ',' tSTAR arg |
| 1040 |
{ |
| 1041 |
value_expr($4); |
| 1042 |
$$ = arg_concat($1, $4); |
| 1043 |
} |
| 1044 |
| tSTAR arg |
| 1045 |
{ |
| 1046 |
value_expr($2); |
| 1047 |
$$ = $2; |
| 1048 |
} |
| 1049 |
|
| 1050 |
ret_args : call_args |
| 1051 |
{ |
| 1052 |
$$ = $1; |
| 1053 |
if ($1 != null) { |
| 1054 |
if ($1 is RNArray && $1.next == null) { |
| 1055 |
$$ = $1.head; |
| 1056 |
} |
| 1057 |
else if ($1 is RNBlockPass) { |
| 1058 |
thread.CompileError("block argument should not be given"); |
| 1059 |
} |
| 1060 |
} |
| 1061 |
} |
| 1062 |
|
| 1063 |
primary : literal |
| 1064 |
{ |
| 1065 |
$$ = new RNLit(thread, $1); |
| 1066 |
} |
| 1067 |
| string |
| 1068 |
| tXSTRING |
| 1069 |
{ |
| 1070 |
$$ = new RNXStr(thread, ruby, $1); |
| 1071 |
} |
| 1072 |
| tQWORDS |
| 1073 |
| tDXSTRING |
| 1074 |
| tDREGEXP |
| 1075 |
| var_ref |
| 1076 |
| backref |
| 1077 |
| tFID |
| 1078 |
{ |
| 1079 |
$$ = new RNVCall(thread, $1); |
| 1080 |
} |
| 1081 |
| kBEGIN |
| 1082 |
compstmt |
| 1083 |
rescue |
| 1084 |
opt_else |
| 1085 |
ensure |
| 1086 |
kEND |
| 1087 |
{ |
| 1088 |
RNode nd = $2; |
| 1089 |
if ($3 == null && $4 == null && $5 == null) |
| 1090 |
$$ = new RNBegin(thread, $2); |
| 1091 |
else { |
| 1092 |
if ($3 != null) nd = new RNRescue(thread, $2, $3, $4); |
| 1093 |
else if ($4 != null) { |
| 1094 |
ruby.warn("else without rescue is useless"); |
| 1095 |
nd = block_append($2, $4); |
| 1096 |
} |
| 1097 |
if ($5 != null) nd = new RNEnsure(thread, $2, $5); |
| 1098 |
$$ = nd; |
| 1099 |
} |
| 1100 |
$<RNode>$.FixPos(nd); |
| 1101 |
} |
| 1102 |
| tLPAREN compstmt ')' |
| 1103 |
{ |
| 1104 |
$$ = $2; |
| 1105 |
} |
| 1106 |
| primary tCOLON2 tCONSTANT |
| 1107 |
{ |
| 1108 |
value_expr($1); |
| 1109 |
$$ = new RNColon2(thread, $1, $3); |
| 1110 |
} |
| 1111 |
| tCOLON3 cname |
| 1112 |
{ |
| 1113 |
$$ = new RNColon3(thread, $2); |
| 1114 |
} |
| 1115 |
| primary '[' aref_args ']' |
| 1116 |
{ |
| 1117 |
value_expr($1); |
| 1118 |
$$ = new RNCall(thread, $1, Token.tAREF, $3); |
| 1119 |
} |
| 1120 |
| tLBRACK aref_args ']' |
| 1121 |
{ |
| 1122 |
if ($2 == null) |
| 1123 |
$$ = new RNZArray(thread); /* zero length array*/ |
| 1124 |
else { |
| 1125 |
$$ = $2; |
| 1126 |
} |
| 1127 |
} |
| 1128 |
| tLBRACE assoc_list '}' |
| 1129 |
{ |
| 1130 |
$$ = new RNHash(thread, $2); |
| 1131 |
} |
| 1132 |
| kRETURN '(' ret_args ')' |
| 1133 |
{ |
| 1134 |
if (!compile_for_eval && in_def == 0 && in_single == 0) |
| 1135 |
yyerror("return appeared outside of method"); |
| 1136 |
value_expr($3); |
| 1137 |
$$ = new RNReturn(thread, $3); |
| 1138 |
} |
| 1139 |
| kRETURN '(' ')' |
| 1140 |
{ |
| 1141 |
if (!compile_for_eval && in_def == 0 && in_single == 0) |
| 1142 |
yyerror("return appeared outside of method"); |
| 1143 |
$$ = new RNReturn(thread); |
| 1144 |
} |
| 1145 |
| kRETURN |
| 1146 |
{ |
| 1147 |
if (!compile_for_eval && in_def == 0 && in_single == 0) |
| 1148 |
yyerror("return appeared outside of method"); |
| 1149 |
$$ = new RNReturn(thread); |
| 1150 |
} |
| 1151 |
| kYIELD '(' ret_args ')' |
| 1152 |
{ |
| 1153 |
value_expr($3); |
| 1154 |
$$ = new RNYield(thread, $3); |
| 1155 |
} |
| 1156 |
| kYIELD '(' ')' |
| 1157 |
{ |
| 1158 |
$$ = new RNYield(thread); |
| 1159 |
} |
| 1160 |
| kYIELD |
| 1161 |
{ |
| 1162 |
$$ = new RNYield(thread); |
| 1163 |
} |
| 1164 |
| kDEFINED opt_nl '(' {in_defined = true;} expr ')' |
| 1165 |
{ |
| 1166 |
in_defined = false; |
| 1167 |
$$ = new RNDefined(thread, $5); |
| 1168 |
} |
| 1169 |
| operation brace_block |
| 1170 |
{ |
| 1171 |
$2.iter = new RNFCall(thread, $1); |
| 1172 |
$$ = $2; |
| 1173 |
} |
| 1174 |
| method_call |
| 1175 |
| method_call brace_block |
| 1176 |
{ |
| 1177 |
if ($1 != null && $1 is RNBlockPass) { |
| 1178 |
thread.CompileError("both block arg and actual block given"); |
| 1179 |
} |
| 1180 |
$2.iter = $1; |
| 1181 |
$$ = $2; |
| 1182 |
$<RNode>$.FixPos($1); |
| 1183 |
} |
| 1184 |
| kIF expr then |
| 1185 |
compstmt |
| 1186 |
if_tail |
| 1187 |
kEND |
| 1188 |
{ |
| 1189 |
value_expr($2); |
| 1190 |
$$ = new RNIf(thread, cond($2), $4, $5); |
| 1191 |
$<RNode>$.FixPos($2); |
| 1192 |
} |
| 1193 |
| kUNLESS expr then |
| 1194 |
compstmt |
| 1195 |
opt_else |
| 1196 |
kEND |
| 1197 |
{ |
| 1198 |
value_expr($2); |
| 1199 |
$$ = new RNUnless(thread, cond($2), $4, $5); |
| 1200 |
$<RNode>$.FixPos($2); |
| 1201 |
} |
| 1202 |
| kWHILE {lex.COND_PUSH();} expr do {lex.COND_POP();} |
| 1203 |
compstmt |
| 1204 |
kEND |
| 1205 |
{ |
| 1206 |
value_expr($3); |
| 1207 |
$$ = new RNWhile(thread, cond($3), $6, true); |
| 1208 |
$<RNode>$.FixPos($3); |
| 1209 |
} |
| 1210 |
| kUNTIL {lex.COND_PUSH();} expr do {lex.COND_POP();} |
| 1211 |
compstmt |
| 1212 |
kEND |
| 1213 |
{ |
| 1214 |
value_expr($3); |
| 1215 |
$$ = new RNUntil(thread, cond($3), $6, true); |
| 1216 |
$<RNode>$.FixPos($3); |
| 1217 |
} |
| 1218 |
| kCASE expr opt_terms |
| 1219 |
case_body |
| 1220 |
kEND |
| 1221 |
{ |
| 1222 |
value_expr($2); |
| 1223 |
$$ = new RNCase(thread, $2, $4); |
| 1224 |
$<RNode>$.FixPos($2); |
| 1225 |
} |
| 1226 |
| kCASE opt_terms case_body kEND |
| 1227 |
{ |
| 1228 |
$$ = $3; |
| 1229 |
} |
| 1230 |
| kFOR block_var kIN {lex.COND_PUSH();} expr do {lex.COND_POP();} |
| 1231 |
compstmt |
| 1232 |
kEND |
| 1233 |
{ |
| 1234 |
value_expr($5); |
| 1235 |
$$ = new RNFor(thread, $2, $5, $8); |
| 1236 |
} |
| 1237 |
| kCLASS cname superclass |
| 1238 |
{ |
| 1239 |
if (in_def != 0|| in_single != 0) |
| 1240 |
yyerror("class definition in method body"); |
| 1241 |
class_nest++; |
| 1242 |
thread.LocalPush(); |
| 1243 |
$$ = sourceline; |
| 1244 |
} |
| 1245 |
compstmt |
| 1246 |
kEND |
| 1247 |
{ |
| 1248 |
$$ = new RNClass(thread, $2, $5, $3); |
| 1249 |
$<RNode>$.SetLine($<int>4); |
| 1250 |
thread.LocalPop(); |
| 1251 |
class_nest--; |
| 1252 |
} |
| 1253 |
| kCLASS tLSHFT expr |
| 1254 |
{ |
| 1255 |
$$ = in_def; |
| 1256 |
in_def = 0; |
| 1257 |
} |
| 1258 |
term |
| 1259 |
{ |
| 1260 |
$$ = in_single; |
| 1261 |
in_single = 0; |
| 1262 |
class_nest++; |
| 1263 |
thread.LocalPush(); |
| 1264 |
} |
| 1265 |
compstmt |
| 1266 |
kEND |
| 1267 |
{ |
| 1268 |
$$ = new RNSClass(thread, $3, $7); |
| 1269 |
thread.LocalPop(); |
| 1270 |
class_nest--; |
| 1271 |
in_def = $<int>4; |
| 1272 |
in_single = $<int>6; |
| 1273 |
} |
| 1274 |
| kMODULE cname |
| 1275 |
{ |
| 1276 |
if (in_def != 0|| in_single != 0) |
| 1277 |
yyerror("module definition in method body"); |
| 1278 |
class_nest++; |
| 1279 |
thread.LocalPush(); |
| 1280 |
$$ = sourceline; |
| 1281 |
} |
| 1282 |
compstmt |
| 1283 |
kEND |
| 1284 |
{ |
| 1285 |
$$ = new RNModule(thread, $2, $4); |
| 1286 |
$<RNode>$.SetLine($<int>3); |
| 1287 |
thread.LocalPop(); |
| 1288 |
class_nest--; |
| 1289 |
} |
| 1290 |
| kDEF fname |
| 1291 |
{ |
| 1292 |
if (in_def != 0|| in_single != 0) |
| 1293 |
yyerror("nested method definition"); |
| 1294 |
$$ = cur_mid; |
| 1295 |
if ($<object>2 is uint) |
| 1296 |
cur_mid = $2; |
| 1297 |
else |
| 1298 |
cur_mid = (uint)$<int>2; |
| 1299 |
in_def++; |
| 1300 |
thread.LocalPush(); |
| 1301 |
} |
| 1302 |
f_arglist |
| 1303 |
compstmt |
| 1304 |
rescue |
| 1305 |
opt_else |
| 1306 |
ensure |
| 1307 |
kEND |
| 1308 |
{ |
| 1309 |
RNode nd = $5; |
| 1310 |
if ($6 != null) nd = new RNRescue(thread, $5, $6, $7); |
| 1311 |
else if ($7 != null) { |
| 1312 |
ruby.warn("else without rescue is useless"); |
| 1313 |
nd = block_append($5, $7); |
| 1314 |
} |
| 1315 |
if ($8 != null) nd = new RNEnsure(thread, $5, $8); |
| 1316 |
|
| 1317 |
/* NOEX_PRIVATE for toplevel */ |
| 1318 |
uint id; |
| 1319 |
if ($<object>2 is uint) |
| 1320 |
{ |
| 1321 |
id = $2; |
| 1322 |
} |
| 1323 |
else |
| 1324 |
{ |
| 1325 |
id = (uint)$<int>2; |
| 1326 |
} |
| 1327 |
$$ = new RNDefn(thread, id, $4, nd, (class_nest > 0) ? NOEX.PUBLIC : NOEX.PRIVATE); |
| 1328 |
if (is_attrset_id(id)) $<RNode>$.noex = NOEX.PUBLIC; |
| 1329 |
$<RNode>$.FixPos($4); |
| 1330 |
thread.LocalPop(); |
| 1331 |
in_def--; |
| 1332 |
cur_mid = $<uint>3; |
| 1333 |
} |
| 1334 |
| kDEF singleton dot_or_colon {lex.State = EXPR.FNAME;} fname |
| 1335 |
{ |
| 1336 |
value_expr($2); |
| 1337 |
in_single++; |
| 1338 |
thread.LocalPush(); |
| 1339 |
lex.State = EXPR.END; /* force for args */ |
| 1340 |
} |
| 1341 |
f_arglist |
| 1342 |
compstmt |
| 1343 |
rescue |
| 1344 |
opt_else |
| 1345 |
ensure |
| 1346 |
kEND |
| 1347 |
{ |
| 1348 |
RNode nd = $8; |
| 1349 |
if ($9 != null) nd = new RNRescue(thread, $8, $9, $10); |
| 1350 |
else if ($10 != null) { |
| 1351 |
ruby.warn("else without rescue is useless"); |
| 1352 |
nd = block_append($8, $10); |
| 1353 |
} |
| 1354 |
if ($11 != null) nd = new RNEnsure(thread, $8, $11); |
| 1355 |
|
| 1356 |
$$ = new RNDefs(thread, $2, $5, $7, nd); |
| 1357 |
$<RNode>$.FixPos($2); |
| 1358 |
thread.LocalPop(); |
| 1359 |
in_single--; |
| 1360 |
} |
| 1361 |
| kBREAK |
| 1362 |
{ |
| 1363 |
$$ = new RNBreak(thread); |
| 1364 |
} |
| 1365 |
| kNEXT |
| 1366 |
{ |
| 1367 |
$$ = new RNNext(thread); |
| 1368 |
} |
| 1369 |
| kREDO |
| 1370 |
{ |
| 1371 |
$$ = new RNRedo(thread); |
| 1372 |
} |
| 1373 |
| kRETRY |
| 1374 |
{ |
| 1375 |
$$ = new RNRetry(thread); |
| 1376 |
} |
| 1377 |
|
| 1378 |
then : term |
| 1379 |
| kTHEN |
| 1380 |
| term kTHEN |
| 1381 |
|
| 1382 |
do : term |
| 1383 |
| kDO_COND |
| 1384 |
|
| 1385 |
if_tail : opt_else |
| 1386 |
| kELSIF expr then |
| 1387 |
compstmt |
| 1388 |
if_tail |
| 1389 |
{ |
| 1390 |
value_expr($2); |
| 1391 |
$$ = new RNIf(thread, cond($2), $4, $5); |
| 1392 |
} |
| 1393 |
|
| 1394 |
opt_else : none |
| 1395 |
| kELSE compstmt |
| 1396 |
{ |
| 1397 |
$$ = $2; |
| 1398 |
} |
| 1399 |
|
| 1400 |
block_var : lhs |
| 1401 |
| mlhs |
| 1402 |
|
| 1403 |
opt_block_var : none |
| 1404 |
| '|' /* none */ '|' |
| 1405 |
{ |
| 1406 |
$$ = new RNBlockNoArg(thread); |
| 1407 |
} |
| 1408 |
| tOROP |
| 1409 |
{ |
| 1410 |
$$ = new RNBlockNoArg(thread); |
| 1411 |
} |
| 1412 |
| '|' block_var '|' |
| 1413 |
{ |
| 1414 |
$$ = $2; |
| 1415 |
} |
| 1416 |
|
| 1417 |
|
| 1418 |
do_block : kDO_BLOCK |
| 1419 |
{ |
| 1420 |
$$ = thread.DynaPush(); |
| 1421 |
} |
| 1422 |
opt_block_var |
| 1423 |
compstmt |
| 1424 |
kEND |
| 1425 |
{ |
| 1426 |
$$ = new RNIter(thread, $3, null, $4); |
| 1427 |
$<RNode>$.FixPos(($3 != null) ? $3 : $4); |
| 1428 |
thread.DynaPop($<RVarmap>2); |
| 1429 |
} |
| 1430 |
|
| 1431 |
block_call : command do_block |
| 1432 |
{ |
| 1433 |
if ($1 != null && $1 is RNBlockPass) { |
| 1434 |
thread.CompileError("both block arg and actual block given"); |
| 1435 |
} |
| 1436 |
$2.iter = $1; |
| 1437 |
$$ = $2; |
| 1438 |
$<RNode>$.FixPos($2); |
| 1439 |
} |
| 1440 |
| block_call '.' operation2 opt_paren_args |
| 1441 |
{ |
| 1442 |
value_expr($1); |
| 1443 |
$$ = new_call($1, $3, $4); |
| 1444 |
} |
| 1445 |
| block_call tCOLON2 operation2 opt_paren_args |
| 1446 |
{ |
| 1447 |
value_expr($1); |
| 1448 |
$$ = new_call($1, $3, $4); |
| 1449 |
} |
| 1450 |
|
| 1451 |
method_call : operation paren_args |
| 1452 |
{ |
| 1453 |
$$ = new_fcall($1, $2); |
| 1454 |
$<RNode>$.FixPos($2); |
| 1455 |
} |
| 1456 |
| primary '.' operation2 opt_paren_args |
| 1457 |
{ |
| 1458 |
value_expr($1); |
| 1459 |
$$ = new_call($1, $3, $4); |
| 1460 |
$<RNode>$.FixPos($1); |
| 1461 |
} |
| 1462 |
| primary tCOLON2 operation2 paren_args |
| 1463 |
{ |
| 1464 |
value_expr($1); |
| 1465 |
$$ = new_call($1, $3, $4); |
| 1466 |
$<RNode>$.FixPos($1); |
| 1467 |
} |
| 1468 |
| primary tCOLON2 operation3 |
| 1469 |
{ |
| 1470 |
value_expr($1); |
| 1471 |
$$ = new_call($1, $3, null); |
| 1472 |
} |
| 1473 |
| kSUPER paren_args |
| 1474 |
{ |
| 1475 |
if (!compile_for_eval && in_def == 0 && |
| 1476 |
in_single == 0 && !in_defined) |
| 1477 |
yyerror("super called outside of method"); |
| 1478 |
$$ = new_super($2); |
| 1479 |
} |
| 1480 |
| kSUPER |
| 1481 |
{ |
| 1482 |
if (!compile_for_eval && in_def == 0 && |
| 1483 |
in_single == 0 && !in_defined) |
| 1484 |
yyerror("super called outside of method"); |
| 1485 |
$$ = new RNZSuper(thread, ruby); |
| 1486 |
} |
| 1487 |
|
| 1488 |
brace_block : '{' |
| 1489 |
{ |
| 1490 |
$$ = thread.DynaPush(); |
| 1491 |
} |
| 1492 |
opt_block_var |
| 1493 |
compstmt '}' |
| 1494 |
{ |
| 1495 |
$$ = new RNIter(thread, $3, null, $4); |
| 1496 |
$<RNode>$.FixPos($4); |
| 1497 |
thread.DynaPop($<RVarmap>2); |
| 1498 |
} |
| 1499 |
| kDO |
| 1500 |
{ |
| 1501 |
$$ = thread.DynaPush(); |
| 1502 |
} |
| 1503 |
opt_block_var |
| 1504 |
compstmt kEND |
| 1505 |
{ |
| 1506 |
$$ = new RNIter(thread, $3, null, $4); |
| 1507 |
$<RNode>$.FixPos($4); |
| 1508 |
thread.DynaPop($<RVarmap>2); |
| 1509 |
} |
| 1510 |
|
| 1511 |
case_body : kWHEN when_args then |
| 1512 |
compstmt |
| 1513 |
cases |
| 1514 |
{ |
| 1515 |
$$ = new RNWhen(thread, $2, $4, $5); |
| 1516 |
} |
| 1517 |
|
| 1518 |
when_args : args |
| 1519 |
| args ',' tSTAR arg |
| 1520 |
{ |
| 1521 |
value_expr($4); |
| 1522 |
$$ = RNode.list_append(thread, $1, new RNWhen(thread, $4)); |
| 1523 |
} |
| 1524 |
| tSTAR arg |
| 1525 |
{ |
| 1526 |
value_expr($2); |
| 1527 |
$$ = new RNArray(thread, new RNWhen(thread, $2)); |
| 1528 |
} |
| 1529 |
|
| 1530 |
cases : opt_else |
| 1531 |
| case_body |
| 1532 |
|
| 1533 |
exc_list : none |
| 1534 |
| args |
| 1535 |
|
| 1536 |
exc_var : tASSOC lhs |
| 1537 |
{ |
| 1538 |
$$ = $2; |
| 1539 |
} |
| 1540 |
| none |
| 1541 |
|
| 1542 |
rescue : kRESCUE exc_list exc_var then |
| 1543 |
compstmt |
| 1544 |
rescue |
| 1545 |
{ |
| 1546 |
RNode nd = $3; |
| 1547 |
RNode nd2 = $5; |
| 1548 |
if (nd != null) { |
| 1549 |
nd = node_assign($3, new RNGVar(thread, ruby, intern("$!"))); |
| 1550 |
nd2 = block_append(nd, $5); |
| 1551 |
} |
| 1552 |
$$ = new RNResBody(thread, $2, nd2, $6); |
| 1553 |
$<RNode>$.FixPos(($2 != null) ? $2 : nd2); |
| 1554 |
} |
| 1555 |
| none |
| 1556 |
|
| 1557 |
ensure : none |
| 1558 |
| kENSURE compstmt |
| 1559 |
{ |
| 1560 |
if ($2 != null) |
| 1561 |
$$ = $2; |
| 1562 |
else |
| 1563 |
/* place holder */ |
| 1564 |
$$ = new RNNil(thread); |
| 1565 |
} |
| 1566 |
|
| 1567 |
literal : numeric |
| 1568 |
| symbol |
| 1569 |
{ |
| 1570 |
if ($<object>1 is uint) |
| 1571 |
$$ = Symbol.ID2SYM($1); |
| 1572 |
else |
| 1573 |
$$ = Symbol.ID2SYM($<char>1); |
| 1574 |
} |
| 1575 |
| tREGEXP |
| 1576 |
|
| 1577 |
string : tSTRING |
| 1578 |
{ |
| 1579 |
$$ = new RNStr(thread, ruby, $1); |
| 1580 |
} |
| 1581 |
| tDSTRING |
| 1582 |
| string tSTRING |
| 1583 |
{ |
| 1584 |
if ($1 is RNDStr) { |
| 1585 |
RNode.list_append(thread, $1, new RNStr(thread, ruby, $<string>2)); |
| 1586 |
} |
| 1587 |
else { |
| 1588 |
#if STRCONCAT |
| 1589 |
rb_str_concat($1.lit, $2); |
| 1590 |
#else |
| 1591 |
$1.lit = (string)($<RNode>1.lit) + $<string>2; |
| 1592 |
#endif |
| 1593 |
} |
| 1594 |
$$ = $1; |
| 1595 |
} |
| 1596 |
| string tDSTRING |
| 1597 |
{ |
| 1598 |
if ($1 is RNStr) { |
| 1599 |
$$ = new RNDStr(thread, ruby, $1.lit); |
| 1600 |
} |
| 1601 |
else { |
| 1602 |
$$ = $1; |
| 1603 |
} |
| 1604 |
$2.head = new RNStr(thread, ruby, $2.lit); |
| 1605 |
RNode.list_concat($<RNode>$, new RNArray(thread, $2)); |
| 1606 |
} |
| 1607 |
|
| 1608 |
symbol : tSYMBEG sym |
| 1609 |
{ |
| 1610 |
lex.State = EXPR.END; |
| 1611 |
if ($<object>2 is uint) |
| 1612 |
$$ = $<uint>2; |
| 1613 |
else |
| 1614 |
$$ = $<char>2; |
| 1615 |
} |
| 1616 |
|
| 1617 |
sym : fname |
| 1618 |
| tIVAR |
| 1619 |
| tGVAR |
| 1620 |
| tCVAR |
| 1621 |
|
| 1622 |
numeric : tINTEGER |
| 1623 |
| tFLOAT |
| 1624 |
|
| 1625 |
variable : tIDENTIFIER |
| 1626 |
| tIVAR |
| 1627 |
| tGVAR |
| 1628 |
| tCONSTANT |
| 1629 |
| tCVAR |
| 1630 |
| kNIL {$$ = (uint)Token.kNIL;} |
| 1631 |
| kSELF {$$ = (uint)Token.kSELF;} |
| 1632 |
| kTRUE {$$ = (uint)Token.kTRUE;} |
| 1633 |
| kFALSE {$$ = (uint)Token.kFALSE;} |
| 1634 |
| k__FILE__ {$$ = (uint)Token.k__FILE__;} |
| 1635 |
| k__LINE__ {$$ = (uint)Token.k__LINE__;} |
| 1636 |
|
| 1637 |
var_ref : variable |
| 1638 |
{ |
| 1639 |
$$ = gettable($1); |
| 1640 |
} |
| 1641 |
|
| 1642 |
backref : tNTH_REF |
| 1643 |
| tBACK_REF |
| 1644 |
|
| 1645 |
superclass : term |
| 1646 |
{ |
| 1647 |
$$ = null; |
| 1648 |
} |
| 1649 |
| '<' |
| 1650 |
{ |
| 1651 |
lex.State = EXPR.BEG; |
| 1652 |
} |
| 1653 |
expr term |
| 1654 |
{ |
| 1655 |
$$ = $3; |
| 1656 |
} |
| 1657 |
| error term {yyErrorFlag = 0; $$ = null;} |
| 1658 |
|
| 1659 |
f_arglist : '(' f_args opt_nl ')' |
| 1660 |
{ |
| 1661 |
$$ = $2; |
| 1662 |
lex.State = EXPR.BEG; |
| 1663 |
} |
| 1664 |
| f_args term |
| 1665 |
{ |
| 1666 |
$$ = $1; |
| 1667 |
} |
| 1668 |
|
| 1669 |
f_args : f_arg ',' f_optarg ',' f_rest_arg opt_f_block_arg |
| 1670 |
{ |
| 1671 |
$$ = block_append(new RNArgs(thread, $1, $3, $5), $6); |
| 1672 |
} |
| 1673 |
| f_arg ',' f_optarg opt_f_block_arg |
| 1674 |
{ |
| 1675 |
$$ = block_append(new RNArgs(thread, $1, $3, -1), $4); |
| 1676 |
} |
| 1677 |
| f_arg ',' f_rest_arg opt_f_block_arg |
| 1678 |
{ |
| 1679 |
$$ = block_append(new RNArgs(thread, $1, null, $<int>3), $4); |
| 1680 |
} |
| 1681 |
| f_arg opt_f_block_arg |
| 1682 |
{ |
| 1683 |
$$ = block_append(new RNArgs(thread, $1, null, -1), $2); |
| 1684 |
} |
| 1685 |
| f_optarg ',' f_rest_arg opt_f_block_arg |
| 1686 |
{ |
| 1687 |
$$ = block_append(new RNArgs(thread, 0, $1, $3), $4); |
| 1688 |
} |
| 1689 |
| f_optarg opt_f_block_arg |
| 1690 |
{ |
| 1691 |
$$ = block_append(new RNArgs(thread, 0, $1, -1), $2); |
| 1692 |
} |
| 1693 |
| f_rest_arg opt_f_block_arg |
| 1694 |
{ |
| 1695 |
$$ = block_append(new RNArgs(thread, 0, null, $<int>1), $2); |
| 1696 |
} |
| 1697 |
| f_block_arg |
| 1698 |
{ |
| 1699 |
$$ = block_append(new RNArgs(thread, 0, null, -1), $1); |
| 1700 |
} |
| 1701 |
| /* none */ |
| 1702 |
{ |
| 1703 |
$$ = new RNArgs(thread, 0, null, -1); |
| 1704 |
} |
| 1705 |
|
| 1706 |
f_norm_arg : tCONSTANT |
| 1707 |
{ |
| 1708 |
yyerror("formal argument cannot be a constant"); |
| 1709 |
} |
| 1710 |
| tIVAR |
| 1711 |
{ |
| 1712 |
yyerror("formal argument cannot be an instance variable"); |
| 1713 |
} |
| 1714 |
| tGVAR |
| 1715 |
{ |
| 1716 |
yyerror("formal argument cannot be a global variable"); |
| 1717 |
} |
| 1718 |
| tCVAR |
| 1719 |
{ |
| 1720 |
yyerror("formal argument cannot be a class variable"); |
| 1721 |
} |
| 1722 |
| tIDENTIFIER |
| 1723 |
{ |
| 1724 |
if (!is_local_id($1)) |
| 1725 |
yyerror("formal argument must be local variable"); |
| 1726 |
else if (thread.LocalID($1)) |
| 1727 |
yyerror("duplicate argument name"); |
| 1728 |
thread.LocalCnt($1); |
| 1729 |
$$ = 1; |
| 1730 |
} |
| 1731 |
|
| 1732 |
f_arg : f_norm_arg |
| 1733 |
| f_arg ',' f_norm_arg |
| 1734 |
{ |
| 1735 |
$$ = $<int>$ + 1; |
| 1736 |
} |
| 1737 |
|
| 1738 |
f_opt : tIDENTIFIER '=' arg |
| 1739 |
{ |
| 1740 |
if (!is_local_id($1)) |
| 1741 |
yyerror("formal argument must be local variable"); |
| 1742 |
else if (thread.LocalID($1)) |
| 1743 |
yyerror("duplicate optional argument name"); |
| 1744 |
$$ = assignable($1, $3); |
| 1745 |
} |
| 1746 |
|
| 1747 |
f_optarg : f_opt |
| 1748 |
{ |
| 1749 |
$$ = new RNBlock(thread, $1); |
| 1750 |
$<RNode>$.end = $<RNode>$; |
| 1751 |
} |
| 1752 |
| f_optarg ',' f_opt |
| 1753 |
{ |
| 1754 |
$$ = block_append($1, $3); |
| 1755 |
} |
| 1756 |
|
| 1757 |
f_rest_arg : tSTAR tIDENTIFIER |
| 1758 |
{ |
| 1759 |
if (!is_local_id($2)) |
| 1760 |
yyerror("rest argument must be local variable"); |
| 1761 |
else if (thread.LocalID($2)) |
| 1762 |
yyerror("duplicate rest argument name"); |
| 1763 |
$$ = thread.LocalCnt($2); |
| 1764 |
} |
| 1765 |
| tSTAR |
| 1766 |
{ |
| 1767 |
$$ = -2; |
| 1768 |
} |
| 1769 |
|
| 1770 |
f_block_arg : tAMPER tIDENTIFIER |
| 1771 |
{ |
| 1772 |
if (!is_local_id($2)) |
| 1773 |
yyerror("block argument must be local variable"); |
| 1774 |
else if (thread.LocalID($2)) |
| 1775 |
yyerror("duplicate block argument name"); |
| 1776 |
$$ = new RNBlockArg(thread, $2, thread.LocalCnt($2)); |
| 1777 |
} |
| 1778 |
|
| 1779 |
opt_f_block_arg : ',' f_block_arg |
| 1780 |
{ |
| 1781 |
$$ = $2; |
| 1782 |
} |
| 1783 |
| none |
| 1784 |
|
| 1785 |
singleton : var_ref |
| 1786 |
{ |
| 1787 |
if ($1 is RNSelf) { |
| 1788 |
$$ = new RNSelf(thread); |
| 1789 |
} |
| 1790 |
else { |
| 1791 |
$$ = $1; |
| 1792 |
} |
| 1793 |
} |
| 1794 |
| '(' {lex.State = EXPR.BEG;} expr opt_nl ')' |
| 1795 |
{ |
| 1796 |
if ($3 is RNStr || |
| 1797 |
$3 is RNDStr || |
| 1798 |
$3 is RNXStr || |
| 1799 |
$3 is RNDXStr || |
| 1800 |
$3 is RNDRegx || |
| 1801 |
$3 is RNLit || |
| 1802 |
$3 is RNArray || |
| 1803 |
$3 is RNZArray) |
| 1804 |
{ |
| 1805 |
yyerror("can't define single method for literals."); |
| 1806 |
} |
| 1807 |
$$ = $3; |
| 1808 |
} |
| 1809 |
|
| 1810 |
assoc_list : none |
| 1811 |
| assocs trailer |
| 1812 |
{ |
| 1813 |
$$ = $1; |
| 1814 |
} |
| 1815 |
| args trailer |
| 1816 |
{ |
| 1817 |
if ($1.alen % 2 != 0) { |
| 1818 |
yyerror("odd number list for Hash"); |
| 1819 |
} |
| 1820 |
$$ = $1; |
| 1821 |
} |
| 1822 |
|
| 1823 |
assocs : assoc |
| 1824 |
| assocs ',' assoc |
| 1825 |
{ |
| 1826 |
$$ = RNode.list_concat($1, $3); |
| 1827 |
} |
| 1828 |
|
| 1829 |
assoc : arg tASSOC arg |
| 1830 |
{ |
| 1831 |
$$ = RNode.list_append(thread, new RNArray(thread, $1), $3); |
| 1832 |
} |
| 1833 |
|
| 1834 |
operation : tIDENTIFIER |
| 1835 |
| tCONSTANT |
| 1836 |
| tFID |
| 1837 |
|
| 1838 |
operation2 : tIDENTIFIER |
| 1839 |
| tCONSTANT |
| 1840 |
| tFID |
| 1841 |
| op |
| 1842 |
|
| 1843 |
operation3 : tIDENTIFIER |
| 1844 |
| tFID |
| 1845 |
| op |
| 1846 |
|
| 1847 |
dot_or_colon : '.' |
| 1848 |
| tCOLON2 |
| 1849 |
|
| 1850 |
opt_terms : /* none */ |
| 1851 |
| terms |
| 1852 |
|
| 1853 |
opt_nl : /* none */ |
| 1854 |
| '\n' |
| 1855 |
|
| 1856 |
trailer : /* none */ |
| 1857 |
| '\n' |
| 1858 |
| ',' |
| 1859 |
|
| 1860 |
term : ';' {yyErrorFlag = 0;} |
| 1861 |
| '\n' |
| 1862 |
|
| 1863 |
terms : term |
| 1864 |
| terms ';' {yyErrorFlag = 0;} |
| 1865 |
|
| 1866 |
none : /* none */ |
| 1867 |
{ |
| 1868 |
$$ = null; |
| 1869 |
} |
| 1870 |
%% |
| 1871 |
RNode block_append(RNode head, RNode tail) |
| 1872 |
{ |
| 1873 |
return RNode.block_append(thread, head, tail); |
| 1874 |
} |
| 1875 |
|
| 1876 |
RNode node_assign(RNode lhs, RNode rhs) |
| 1877 |
{ |
| 1878 |
if (lhs == null) return null; |
| 1879 |
|
| 1880 |
value_expr(rhs); |
| 1881 |
if (lhs is RNGAsgn || |
| 1882 |
lhs is RNIAsgn || |
| 1883 |
lhs is RNLAsgn || |
| 1884 |
lhs is RNDAsgn || |
| 1885 |
lhs is RNDAsgnCurr || |
| 1886 |
lhs is RNMAsgn || |
| 1887 |
lhs is RNCDecl || |
| 1888 |
lhs is RNCVDecl || |
| 1889 |
lhs is RNCVAsgn) |
| 1890 |
{ |
| 1891 |
lhs.val = rhs; |
| 1892 |
} |
| 1893 |
else if (lhs is RNCall) |
| 1894 |
{ |
| 1895 |
lhs.args = arg_add(lhs.args, rhs); |
| 1896 |
} |
| 1897 |
if (rhs != null) |
| 1898 |
{ |
| 1899 |
lhs.FixPos(rhs); |
| 1900 |
} |
| 1901 |
return lhs; |
| 1902 |
} |
| 1903 |
|
| 1904 |
bool value_expr(RNode node) |
| 1905 |
{ |
| 1906 |
if (node == null) return true; |
| 1907 |
|
| 1908 |
if (node is RNReturn || |
| 1909 |
node is RNBreak || |
| 1910 |
node is RNNext || |
| 1911 |
node is RNRedo || |
| 1912 |
node is RNRetry || |
| 1913 |
node is RNWhile || |
| 1914 |
node is RNUntil || |
| 1915 |
node is RNClass || |
| 1916 |
node is RNModule || |
| 1917 |
node is RNDefn || |
| 1918 |
node is RNDefs) |
| 1919 |
{ |
| 1920 |
yyerror("void value expression"); |
| 1921 |
return false; |
| 1922 |
} |
| 1923 |
else if (node is RNBlock) |
| 1924 |
{ |
| 1925 |
while (node.next != null) { |
| 1926 |
node = node.next; |
| 1927 |
} |
| 1928 |
return value_expr(node.head); |
| 1929 |
} |
| 1930 |
else if (node is RNBegin) |
| 1931 |
{ |
| 1932 |
return value_expr(node.body); |
| 1933 |
} |
| 1934 |
else if (node is RNIf) |
| 1935 |
{ |
| 1936 |
return value_expr(node.body) && value_expr(node.nd_else); |
| 1937 |
} |
| 1938 |
else if (node is RNNewLine) |
| 1939 |
{ |
| 1940 |
return value_expr(node.next); |
| 1941 |
} |
| 1942 |
return true; |
| 1943 |
} |
| 1944 |
|
| 1945 |
void void_expr(RNode node) |
| 1946 |
{ |
| 1947 |
string useless = ""; |
| 1948 |
if (!ruby.verbose) return; |
| 1949 |
if (node == null) return; |
| 1950 |
again: |
| 1951 |
if (node is RNNewLine) |
| 1952 |
{ |
| 1953 |
node = node.next; |
| 1954 |
goto again; |
| 1955 |
} |
| 1956 |
else if (node is RNCall) |
| 1957 |
{ |
| 1958 |
switch (node.mid) { |
| 1959 |
case '+': |
| 1960 |
case '-': |
| 1961 |
case '*': |
| 1962 |
case '/': |
| 1963 |
case '%': |
| 1964 |
case Token.tPOW: |
| 1965 |
case Token.tUPLUS: |
| 1966 |
case Token.tUMINUS: |
| 1967 |
case '|': |
| 1968 |
case '^': |
| 1969 |
case '&': |
| 1970 |
case Token.tCMP: |
| 1971 |
case '>': |
| 1972 |
case Token.tGEQ: |
| 1973 |
case '<': |
| 1974 |
case Token.tLEQ: |
| 1975 |
case Token.tEQ: |
| 1976 |
case Token.tNEQ: |
| 1977 |
useless = id2name(node.mid); |
| 1978 |
break; |
| 1979 |
} |
| 1980 |
} |
| 1981 |
else if (node is RNLVar || |
| 1982 |
node is RNDVar || |
| 1983 |
node is RNIVar || |
| 1984 |
node is RNCVar || |
| 1985 |
node is RNNthRef || |
| 1986 |
node is RNBackRef) |
| 1987 |
{ |
| 1988 |
useless = "a variable"; |
| 1989 |
} |
| 1990 |
else if (node is RNConst || |
| 1991 |
node is RNCRef) |
| 1992 |
{ |
| 1993 |
useless = "a constant"; |
| 1994 |
} |
| 1995 |
else if (node is RNLit || |
| 1996 |
node is RNStr || |
| 1997 |
node is RNDStr || |
| 1998 |
node is RNDRegx || |
| 1999 |
node is RNDRegxOnce) |
| 2000 |
{ |
| 2001 |
useless = "a literal"; |
| 2002 |
} |
| 2003 |
else if (node is RNColon2 || |
| 2004 |
node is RNColon3) |
| 2005 |
{ |
| 2006 |
useless = "::"; |
| 2007 |
} |
| 2008 |
else if (node is RNDot2) |
| 2009 |
{ |
| 2010 |
useless = ".."; |
| 2011 |
} |
| 2012 |
else if (node is RNDot3) |
| 2013 |
{ |
| 2014 |
useless = "..."; |
| 2015 |
} |
| 2016 |
else if (node is RNSelf) |
| 2017 |
{ |
| 2018 |
useless = "self"; |
| 2019 |
} |
| 2020 |
else if (node is RNNil) |
| 2021 |
{ |
| 2022 |
useless = "nil"; |
| 2023 |
} |
| 2024 |
else if (node is RNTrue) |
| 2025 |
{ |
| 2026 |
useless = "true"; |
| 2027 |
} |
| 2028 |
else if (node is RNFalse) |
| 2029 |
{ |
| 2030 |
useless = "false"; |
| 2031 |
} |
| 2032 |
else if (node is RNDefined) |
| 2033 |
{ |
| 2034 |
useless = "defined?"; |
| 2035 |
} |
| 2036 |
|
| 2037 |
if (useless.Length > 0) { |
| 2038 |
int line = sourceline; |
| 2039 |
sourceline = node.Line; |
| 2040 |
ruby.warn("useless use of {0} in void context", useless); |
| 2041 |
sourceline = line; |
| 2042 |
} |
| 2043 |
} |
| 2044 |
|
| 2045 |
bool assign_in_cond(RNode node) |
| 2046 |
{ |
| 2047 |
if (node is RNMAsgn) |
| 2048 |
{ |
| 2049 |
yyerror("multiple assignment in conditional"); |
| 2050 |
return true; |
| 2051 |
} |
| 2052 |
else if (node is RNLAsgn || |
| 2053 |
node is RNDAsgn || |
| 2054 |
node is RNGAsgn || |
| 2055 |
node is RNIAsgn) |
| 2056 |
{ |
| 2057 |
} |
| 2058 |
else if (node is RNNewLine) |
| 2059 |
{ |
| 2060 |
return false; |
| 2061 |
} |
| 2062 |
else |
| 2063 |
{ |
| 2064 |
return false; |
| 2065 |
} |
| 2066 |
|
| 2067 |
RNode rn = node.val; |
| 2068 |
if (rn is RNLit || |
| 2069 |
rn is RNStr || |
| 2070 |
rn is RNNil || |
| 2071 |
rn is RNTrue || |
| 2072 |
rn is RNFalse) |
| 2073 |
{ |
| 2074 |
/* reports always */ |
| 2075 |
ruby.warn("found = in conditional, should be =="); |
| 2076 |
return true; |
| 2077 |
} |
| 2078 |
else if (rn is RNDStr || |
| 2079 |
rn is RNXStr || |
| 2080 |
rn is RNDXStr || |
| 2081 |
rn is RNEvStr || |
| 2082 |
rn is RNDRegx) |
| 2083 |
{ |
| 2084 |
} |
| 2085 |
return true; |
| 2086 |
} |
| 2087 |
|
| 2088 |
void void_stmts(RNode node) |
| 2089 |
{ |
| 2090 |
if (!ruby.verbose) return; |
| 2091 |
if (node == null) return; |
| 2092 |
if (node is RNBlock == false) return; |
| 2093 |
|
| 2094 |
for (;;) { |
| 2095 |
if (node.next == null) return; |
| 2096 |
void_expr(node.head); |
| 2097 |
node = node.next; |
| 2098 |
} |
| 2099 |
} |
| 2100 |
|
| 2101 |
RNode call_op(RNode recv, uint id, int narg, RNode arg1) |
| 2102 |
{ |
| 2103 |
value_expr(recv); |
| 2104 |
if (narg == 1) { |
| 2105 |
value_expr(arg1); |
| 2106 |
} |
| 2107 |
return new RNCall(thread, recv, id, narg==1?new RNArray(thread, arg1):null); |
| 2108 |
} |
| 2109 |
|
| 2110 |
RNode cond0(RNode node) |
| 2111 |
{ |
| 2112 |
// check bad assignment |
| 2113 |
assign_in_cond(node); |
| 2114 |
|
| 2115 |
if (node is RNDRegx || |
| 2116 |
node is RNDRegxOnce) |
| 2117 |
{ |
| 2118 |
thread.LocalCnt('_'); |
| 2119 |
thread.LocalCnt('~'); |
| 2120 |
return new RNMatch2(thread, node, new RNGVar(thread, ruby, intern("$_"))); |
| 2121 |
} |
| 2122 |
else if (node is RNDot2 || node is RNDot3) |
| 2123 |
{ |
| 2124 |
node.beg = cond2(node.beg); |
| 2125 |
node.end = cond2(node.end); |
| 2126 |
if (node is RNDot2) |
| 2127 |
{ |
| 2128 |
node = new RNFlip2(node); |
| 2129 |
} |
| 2130 |
else |
| 2131 |
{ |
| 2132 |
node = new RNFlip3(node); |
| 2133 |
} |
| 2134 |
node.cnt = (int)thread.LocalAppend(0); |
| 2135 |
return node; |
| 2136 |
} |
| 2137 |
else if (node is RNLit) |
| 2138 |
{ |
| 2139 |
if (node.lit is RRegexp) { |
| 2140 |
thread.LocalCnt('_'); |
| 2141 |
thread.LocalCnt('~'); |
| 2142 |
return new RNMatch(thread, node); |
| 2143 |
} |
| 2144 |
if (node.lit is string || node.lit is RString) { |
| 2145 |
thread.LocalCnt('_'); |
| 2146 |
thread.LocalCnt('~'); |
| 2147 |
return new RNMatch(thread, RRegexpClass.s_new(ruby.cRegexp, node.lit)); |
| 2148 |
} |
| 2149 |
} |
| 2150 |
return node; |
| 2151 |
} |
| 2152 |
|
| 2153 |
RNode cond(RNode node) |
| 2154 |
{ |
| 2155 |
if (node == null) return null; |
| 2156 |
if (node is RNNewLine) |
| 2157 |
{ |
| 2158 |
node = cond0(node.next); |
| 2159 |
return node; |
| 2160 |
} |
| 2161 |
return cond0(node); |
| 2162 |
} |
| 2163 |
|
| 2164 |
RNode cond2(RNode node) |
| 2165 |
{ |
| 2166 |
node = cond(node); |
| 2167 |
if (node is RNNewLine) |
| 2168 |
{ |
| 2169 |
node = node.next; |
| 2170 |
} |
| 2171 |
else if (node is RNLit && (node.lit is int || node.lit is Decimal)) |
| 2172 |
{ |
| 2173 |
return call_op(node,Token.tEQ,1,new RNGVar(thread, ruby, intern("$."))); |
| 2174 |
} |
| 2175 |
return node; |
| 2176 |
} |
| 2177 |
|
| 2178 |
RNode logop(Type tp, RNode left, RNode right) |
| 2179 |
{ |
| 2180 |
value_expr(left); |
| 2181 |
BindingFlags bf = BindingFlags.Instance | BindingFlags.NonPublic |
| 2182 |
| BindingFlags.InvokeMethod; |
| 2183 |
ConstructorInfo ctr = tp.GetConstructor(bf, null, |
| 2184 |
new Type[] {typeof(RThread), typeof(RNode), typeof(RNode)}, null); |
| 2185 |
return (RNode)ctr.Invoke(new object[] {thread, cond(left), cond(right)}); |
| 2186 |
} |
| 2187 |
|
| 2188 |
RNode arg_blk_pass(RNode node1, RNode node2) |
| 2189 |
{ |
| 2190 |
if (node2 != null) |
| 2191 |
{ |
| 2192 |
node2.head = node1; |
| 2193 |
return node2; |
| 2194 |
} |
| 2195 |
return node1; |
| 2196 |
} |
| 2197 |
|
| 2198 |
RNode new_call(RNode r, uint m, RNode a) |
| 2199 |
{ |
| 2200 |
if (a != null && a is RNBlockPass) { |
| 2201 |
a.iter = new RNCall(thread, r, m, a.head); |
| 2202 |
return a; |
| 2203 |
} |
| 2204 |
return new RNCall(thread, r, m, a); |
| 2205 |
} |
| 2206 |
|
| 2207 |
RNode new_fcall(uint m, RNode a) |
| 2208 |
{ |
| 2209 |
if (a != null && a is RNBlockPass) { |
| 2210 |
a.iter = new RNFCall(thread, m, a.head); |
| 2211 |
return a; |
| 2212 |
} |
| 2213 |
return new RNFCall(thread, m, a); |
| 2214 |
} |
| 2215 |
|
| 2216 |
RNode new_super(RNode a) |
| 2217 |
{ |
| 2218 |
if (a != null && a is RNBlockPass) { |
| 2219 |
a.iter = new RNSuper(thread, a.head); |
| 2220 |
return a; |
| 2221 |
} |
| 2222 |
return new RNSuper(thread, a); |
| 2223 |
} |
| 2224 |
|
| 2225 |
RNode aryset(RNode recv, RNode idx) |
| 2226 |
{ |
| 2227 |
value_expr(recv); |
| 2228 |
return new RNCall(thread, recv, Token.tASET, idx); |
| 2229 |
} |
| 2230 |
|
| 2231 |
static internal uint id_attrset(uint id) |
| 2232 |
{ |
| 2233 |
id &= ~(uint)ID.SCOPE_MASK; |
| 2234 |
id |= (uint)ID.ATTRSET; |
| 2235 |
return id; |
| 2236 |
} |
| 2237 |
|
| 2238 |
RNode attrset(RNode recv, uint id) |
| 2239 |
{ |
| 2240 |
value_expr(recv); |
| 2241 |
|
| 2242 |
return new RNCall(thread, recv, id_attrset(id), null); |
| 2243 |
} |
| 2244 |
|
| 2245 |
void backref_error(RNode node) |
| 2246 |
{ |
| 2247 |
if (node is RNNthRef) |
| 2248 |
{ |
| 2249 |
thread.CompileError("Can't set variable $" + node.nth.ToString()); |
| 2250 |
} |
| 2251 |
else if (node is RNBackRef) |
| 2252 |
{ |
| 2253 |
thread.CompileError("Can't set variable $" + node.nth.ToString()); |
| 2254 |
} |
| 2255 |
} |
| 2256 |
|
| 2257 |
RNode arg_concat(RNode node1, RNode node2) |
| 2258 |
{ |
| 2259 |
if (node2 == null) return node1; |
| 2260 |
return new RNArgsCat(thread, node1, node2); |
| 2261 |
} |
| 2262 |
|
| 2263 |
RNode arg_add(RNode node1, RNode node2) |
| 2264 |
{ |
| 2265 |
if (node1 == null) return new RNArray(thread, node2); |
| 2266 |
if (node1 is RNArray) |
| 2267 |
{ |
| 2268 |
return ((RNArray)node1).append(thread, node2); |
| 2269 |
} |
| 2270 |
else { |
| 2271 |
return new RNArgsPush(thread, node1, node2); |
| 2272 |
} |
| 2273 |
} |
| 2274 |
|
| 2275 |
static public bool is_notop_id(uint id) |
| 2276 |
{ |
| 2277 |
return (id > Token.LAST_TOKEN); |
| 2278 |
} |
| 2279 |
static public bool is_local_id(uint id) |
| 2280 |
{ |
| 2281 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.LOCAL)); |
| 2282 |
} |
| 2283 |
static public uint make_const_id(uint id) |
| 2284 |
{ |
| 2285 |
return (id & ~(uint)ID.SCOPE_MASK) | (uint)ID.CONST; |
| 2286 |
} |
| 2287 |
static public bool is_global_id(uint id) |
| 2288 |
{ |
| 2289 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.GLOBAL)); |
| 2290 |
} |
| 2291 |
static public bool is_instance_id(uint id) |
| 2292 |
{ |
| 2293 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.INSTANCE)); |
| 2294 |
} |
| 2295 |
static public bool is_attrset_id(uint id) |
| 2296 |
{ |
| 2297 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.ATTRSET)); |
| 2298 |
} |
| 2299 |
static public uint make_local_id(uint id) |
| 2300 |
{ |
| 2301 |
return (id & ~(uint)ID.SCOPE_MASK) | (uint)ID.LOCAL; |
| 2302 |
} |
| 2303 |
static public bool is_const_id(uint id) |
| 2304 |
{ |
| 2305 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.CONST)); |
| 2306 |
} |
| 2307 |
static public bool is_class_id(uint id) |
| 2308 |
{ |
| 2309 |
return (id > Token.LAST_TOKEN && ((id & (uint)ID.SCOPE_MASK) == (uint)ID.CLASS)); |
| 2310 |
} |
| 2311 |
|
| 2312 |
RNode match_gen(RNode node1, RNode node2) |
| 2313 |
{ |
| 2314 |
thread.LocalCnt('~'); |
| 2315 |
|
| 2316 |
if (node1 is RNDRegx || node1 is RNDRegxOnce) |
| 2317 |
{ |
| 2318 |
return new RNMatch2(thread, node1, node2); |
| 2319 |
} |
| 2320 |
else if (node1 is RNLit) |
| 2321 |
{ |
| 2322 |
if (node1.lit is Regex) |
| 2323 |
{ |
| 2324 |
return new RNMatch2(thread, node1, node2); |
| 2325 |
} |
| 2326 |
} |
| 2327 |
|
| 2328 |
if (node2 is RNDRegx || node2 is RNDRegxOnce) |
| 2329 |
{ |
| 2330 |
return new RNMatch3(thread, node2, node1); |
| 2331 |
} |
| 2332 |
else if (node2 is RNLit) |
| 2333 |
{ |
| 2334 |
if (node2.lit is Regex) { |
| 2335 |
return new RNMatch3(thread, node2, node1); |
| 2336 |
} |
| 2337 |
} |
| 2338 |
|
| 2339 |
return new RNCall(thread,node1, Token.tMATCH, new RNArray(thread, node2)); |
| 2340 |
} |
| 2341 |
|
| 2342 |
RNode gettable(uint id) |
| 2343 |
{ |
| 2344 |
if (id == Token.kSELF) { |
| 2345 |
return new RNSelf(thread); |
| 2346 |
} |
| 2347 |
else if (id == Token.kNIL) { |
| 2348 |
return new RNNil(thread); |
| 2349 |
} |
| 2350 |
else if (id == Token.kTRUE) { |
| 2351 |
return new RNTrue(thread); |
| 2352 |
} |
| 2353 |
else if (id == Token.kFALSE) { |
| 2354 |
return new RNFalse(thread); |
| 2355 |
} |
| 2356 |
else if (id == Token.k__FILE__) { |
| 2357 |
RString f = new RString(ruby, sourcefile); |
| 2358 |
f.Freeze(); |
| 2359 |
return new RNStr(thread, ruby, f); |
| 2360 |
} |
| 2361 |
else if (id == Token.k__LINE__) { |
| 2362 |
return new RNLit(thread, sourceline); |
| 2363 |
} |
| 2364 |
else if (is_local_id(id)) { |
| 2365 |
if (thread.IsDynaInBlock && thread.dvar_defined(id)) |
| 2366 |
return new RNDVar(thread, id); |
| 2367 |
if (thread.LocalID(id)) return new RNLVar(thread, id); |
| 2368 |
/* method call without arguments */ |
| 2369 |
return new RNVCall(thread, id); |
| 2370 |
} |
| 2371 |
else if (is_global_id(id)) { |
| 2372 |
return new RNGVar(thread, ruby, id); |
| 2373 |
} |
| 2374 |
else if (is_instance_id(id)) { |
| 2375 |
return new RNIVar(thread, id); |
| 2376 |
} |
| 2377 |
else if (is_const_id(id)) { |
| 2378 |
return new RNConst(thread, id); |
| 2379 |
} |
| 2380 |
else if (is_class_id(id)) { |
| 2381 |
if (in_single > 0) return new RNCVar2(thread, id); |
| 2382 |
return new RNCVar(thread, id); |
| 2383 |
} |
| 2384 |
ruby.bug("invalid id for gettable"); |
| 2385 |
return null; |
| 2386 |
} |
| 2387 |
|
| 2388 |
|
| 2389 |
RNode assignable(uint id, RNode val) |
| 2390 |
{ |
| 2391 |
value_expr(val); |
| 2392 |
if (id == Token.kSELF) { |
| 2393 |
yyerror("Can't change the value of self"); |
| 2394 |
} |
| 2395 |
else if (id == Token.kNIL) { |
| 2396 |
yyerror("Can't assign to nil"); |
| 2397 |
} |
| 2398 |
else if (id == Token.kTRUE) { |
| 2399 |
yyerror("Can't assign to true"); |
| 2400 |
} |
| 2401 |
else if (id == Token.kFALSE) { |
| 2402 |
yyerror("Can't assign to false"); |
| 2403 |
} |
| 2404 |
else if (id == Token.k__FILE__) { |
| 2405 |
yyerror("Can't assign to __FILE__"); |
| 2406 |
} |
| 2407 |
else if (id == Token.k__LINE__) { |
| 2408 |
yyerror("Can't assign to __LINE__"); |
| 2409 |
} |
| 2410 |
else if (is_local_id(id)) { |
| 2411 |
if (thread.dvar_curr(id)) { |
| 2412 |
return new RNDAsgnCurr(thread, id, val); |
| 2413 |
} |
| 2414 |
else if (thread.dvar_defined(id)) { |
| 2415 |
return new RNDAsgn(thread, id, val); |
| 2416 |
} |
| 2417 |
else if (thread.LocalID(id) || !thread.IsDynaInBlock) { |
| 2418 |
return new RNLAsgn(thread, id, val); |
| 2419 |
} |
| 2420 |
else{ |
| 2421 |
thread.dvar_push(id, null); |
| 2422 |
return new RNDAsgn(thread, id, val); |
| 2423 |
} |
| 2424 |
} |
| 2425 |
else if (is_global_id(id)) { |
| 2426 |
return new RNGAsgn(thread, ruby, id, val); |
| 2427 |
} |
| 2428 |
else if (is_instance_id(id)) { |
| 2429 |
return new RNIAsgn(thread, id, val); |
| 2430 |
} |
| 2431 |
else if (is_const_id(id)) { |
| 2432 |
if (in_def > 0 || in_single > 0) |
| 2433 |
yyerror("dynamic constant assignment"); |
| 2434 |
return new RNCDecl(thread, id, val); |
| 2435 |
} |
| 2436 |
else if (is_class_id(id)) { |
| 2437 |
if (in_single > 0) return new RNCVAsgn(thread, id, val); |
| 2438 |
return new RNCVDecl(thread, id, val); |
| 2439 |
} |
| 2440 |
else { |
| 2441 |
ruby.bug("bad id for variable"); |
| 2442 |
} |
| 2443 |
return null; |
| 2444 |
} |
| 2445 |
|
| 2446 |
private uint intern(string name) |
| 2447 |
{ |
| 2448 |
return ruby.intern(name); |
| 2449 |
} |
| 2450 |
|
| 2451 |
private string id2name(uint id) |
| 2452 |
{ |
| 2453 |
if (id < Token.LAST_TOKEN) { |
| 2454 |
int i = 0; |
| 2455 |
|
| 2456 |
for (i=0; i < NetRuby.op_tbl.Length; i++) { |
| 2457 |
if (NetRuby.op_tbl[i].token == id) |
| 2458 |
return NetRuby.op_tbl[i].name; |
| 2459 |
} |
| 2460 |
} |
| 2461 |
string name = null; |
| 2462 |
|
| 2463 |
if (ruby.sym_rev_tbl.lookup(id, out name)) |
| 2464 |
return name; |
| 2465 |
|
| 2466 |
if (is_attrset_id(id)) { |
| 2467 |
uint id2 = make_local_id(id); |
| 2468 |
|
| 2469 |
again: |
| 2470 |
name = id2name(id2); |
| 2471 |
if (name != null) { |
| 2472 |
string buf = name + "="; |
| 2473 |
intern(name + "="); |
| 2474 |
return id2name(id); |
| 2475 |
} |
| 2476 |
if (is_local_id(id2)) { |
| 2477 |
id2 = make_const_id(id); |
| 2478 |
goto again; |
| 2479 |
} |
| 2480 |
} |
| 2481 |
return null; |
| 2482 |
} |
| 2483 |
|
| 2484 |
|
| 2485 |
} |
| 2486 |
|
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