1 %pure_parser 2 %expect 6 3 4 %tokens 5 6 %% 7 8 start: 9 top_statement_list { $$ = $this->handleNamespaces($1); } 10 ; 11 12 top_statement_list_ex: 13 top_statement_list_ex top_statement { pushNormalizing($1, $2); } 14 | /* empty */ { init(); } 15 ; 16 17 top_statement_list: 18 top_statement_list_ex 19 { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); 20 if ($nop !== null) { $1[] = $nop; } $$ = $1; } 21 ; 22 23 reserved_non_modifiers: 24 T_INCLUDE | T_INCLUDE_ONCE | T_EVAL | T_REQUIRE | T_REQUIRE_ONCE | T_LOGICAL_OR | T_LOGICAL_XOR | T_LOGICAL_AND 25 | T_INSTANCEOF | T_NEW | T_CLONE | T_EXIT | T_IF | T_ELSEIF | T_ELSE | T_ENDIF | T_ECHO | T_DO | T_WHILE 26 | T_ENDWHILE | T_FOR | T_ENDFOR | T_FOREACH | T_ENDFOREACH | T_DECLARE | T_ENDDECLARE | T_AS | T_TRY | T_CATCH 27 | T_FINALLY | T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO 28 | T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT 29 | T_BREAK | T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE | T_CLASS 30 | T_CLASS_C | T_TRAIT_C | T_FUNC_C | T_METHOD_C | T_LINE | T_FILE | T_DIR | T_NS_C | T_HALT_COMPILER | T_FN 31 | T_MATCH 32 ; 33 34 semi_reserved: 35 reserved_non_modifiers 36 | T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC 37 ; 38 39 identifier_ex: 40 T_STRING { $$ = Node\Identifier[$1]; } 41 | semi_reserved { $$ = Node\Identifier[$1]; } 42 ; 43 44 identifier: 45 T_STRING { $$ = Node\Identifier[$1]; } 46 ; 47 48 reserved_non_modifiers_identifier: 49 reserved_non_modifiers { $$ = Node\Identifier[$1]; } 50 ; 51 52 namespace_name: 53 T_STRING { $$ = Name[$1]; } 54 | T_NAME_QUALIFIED { $$ = Name[$1]; } 55 ; 56 57 legacy_namespace_name: 58 namespace_name { $$ = $1; } 59 | T_NAME_FULLY_QUALIFIED { $$ = Name[substr($1, 1)]; } 60 ; 61 62 plain_variable: 63 T_VARIABLE { $$ = Expr\Variable[parseVar($1)]; } 64 ; 65 66 top_statement: 67 statement { $$ = $1; } 68 | function_declaration_statement { $$ = $1; } 69 | class_declaration_statement { $$ = $1; } 70 | T_HALT_COMPILER 71 { $$ = Stmt\HaltCompiler[$this->lexer->handleHaltCompiler()]; } 72 | T_NAMESPACE namespace_name ';' 73 { $$ = Stmt\Namespace_[$2, null]; 74 $$->setAttribute('kind', Stmt\Namespace_::KIND_SEMICOLON); 75 $this->checkNamespace($$); } 76 | T_NAMESPACE namespace_name '{' top_statement_list '}' 77 { $$ = Stmt\Namespace_[$2, $4]; 78 $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); 79 $this->checkNamespace($$); } 80 | T_NAMESPACE '{' top_statement_list '}' 81 { $$ = Stmt\Namespace_[null, $3]; 82 $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); 83 $this->checkNamespace($$); } 84 | T_USE use_declarations ';' { $$ = Stmt\Use_[$2, Stmt\Use_::TYPE_NORMAL]; } 85 | T_USE use_type use_declarations ';' { $$ = Stmt\Use_[$3, $2]; } 86 | group_use_declaration ';' { $$ = $1; } 87 | T_CONST constant_declaration_list ';' { $$ = Stmt\Const_[$2]; } 88 ; 89 90 use_type: 91 T_FUNCTION { $$ = Stmt\Use_::TYPE_FUNCTION; } 92 | T_CONST { $$ = Stmt\Use_::TYPE_CONSTANT; } 93 ; 94 95 group_use_declaration: 96 T_USE use_type legacy_namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations '}' 97 { $$ = Stmt\GroupUse[$3, $6, $2]; } 98 | T_USE legacy_namespace_name T_NS_SEPARATOR '{' inline_use_declarations '}' 99 { $$ = Stmt\GroupUse[$2, $5, Stmt\Use_::TYPE_UNKNOWN]; } 100 ; 101 102 unprefixed_use_declarations: 103 unprefixed_use_declarations ',' unprefixed_use_declaration 104 { push($1, $3); } 105 | unprefixed_use_declaration { init($1); } 106 ; 107 108 use_declarations: 109 use_declarations ',' use_declaration { push($1, $3); } 110 | use_declaration { init($1); } 111 ; 112 113 inline_use_declarations: 114 inline_use_declarations ',' inline_use_declaration { push($1, $3); } 115 | inline_use_declaration { init($1); } 116 ; 117 118 unprefixed_use_declaration: 119 namespace_name 120 { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } 121 | namespace_name T_AS identifier 122 { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } 123 ; 124 125 use_declaration: 126 legacy_namespace_name 127 { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } 128 | legacy_namespace_name T_AS identifier 129 { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } 130 ; 131 132 inline_use_declaration: 133 unprefixed_use_declaration { $$ = $1; $$->type = Stmt\Use_::TYPE_NORMAL; } 134 | use_type unprefixed_use_declaration { $$ = $2; $$->type = $1; } 135 ; 136 137 constant_declaration_list: 138 constant_declaration_list ',' constant_declaration { push($1, $3); } 139 | constant_declaration { init($1); } 140 ; 141 142 constant_declaration: 143 identifier '=' static_scalar { $$ = Node\Const_[$1, $3]; } 144 ; 145 146 class_const_list: 147 class_const_list ',' class_const { push($1, $3); } 148 | class_const { init($1); } 149 ; 150 151 class_const: 152 identifier_ex '=' static_scalar { $$ = Node\Const_[$1, $3]; } 153 ; 154 155 inner_statement_list_ex: 156 inner_statement_list_ex inner_statement { pushNormalizing($1, $2); } 157 | /* empty */ { init(); } 158 ; 159 160 inner_statement_list: 161 inner_statement_list_ex 162 { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); 163 if ($nop !== null) { $1[] = $nop; } $$ = $1; } 164 ; 165 166 inner_statement: 167 statement { $$ = $1; } 168 | function_declaration_statement { $$ = $1; } 169 | class_declaration_statement { $$ = $1; } 170 | T_HALT_COMPILER 171 { throw new Error('__HALT_COMPILER() can only be used from the outermost scope', attributes()); } 172 ; 173 174 non_empty_statement: 175 '{' inner_statement_list '}' 176 { 177 if ($2) { 178 $$ = $2; prependLeadingComments($$); 179 } else { 180 makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); 181 if (null === $$) { $$ = array(); } 182 } 183 } 184 | T_IF parentheses_expr statement elseif_list else_single 185 { $$ = Stmt\If_[$2, ['stmts' => toArray($3), 'elseifs' => $4, 'else' => $5]]; } 186 | T_IF parentheses_expr ':' inner_statement_list new_elseif_list new_else_single T_ENDIF ';' 187 { $$ = Stmt\If_[$2, ['stmts' => $4, 'elseifs' => $5, 'else' => $6]]; } 188 | T_WHILE parentheses_expr while_statement { $$ = Stmt\While_[$2, $3]; } 189 | T_DO statement T_WHILE parentheses_expr ';' { $$ = Stmt\Do_ [$4, toArray($2)]; } 190 | T_FOR '(' for_expr ';' for_expr ';' for_expr ')' for_statement 191 { $$ = Stmt\For_[['init' => $3, 'cond' => $5, 'loop' => $7, 'stmts' => $9]]; } 192 | T_SWITCH parentheses_expr switch_case_list { $$ = Stmt\Switch_[$2, $3]; } 193 | T_BREAK ';' { $$ = Stmt\Break_[null]; } 194 | T_BREAK expr ';' { $$ = Stmt\Break_[$2]; } 195 | T_CONTINUE ';' { $$ = Stmt\Continue_[null]; } 196 | T_CONTINUE expr ';' { $$ = Stmt\Continue_[$2]; } 197 | T_RETURN ';' { $$ = Stmt\Return_[null]; } 198 | T_RETURN expr ';' { $$ = Stmt\Return_[$2]; } 199 | T_GLOBAL global_var_list ';' { $$ = Stmt\Global_[$2]; } 200 | T_STATIC static_var_list ';' { $$ = Stmt\Static_[$2]; } 201 | T_ECHO expr_list ';' { $$ = Stmt\Echo_[$2]; } 202 | T_INLINE_HTML { $$ = Stmt\InlineHTML[$1]; } 203 | yield_expr ';' { $$ = Stmt\Expression[$1]; } 204 | expr ';' { $$ = Stmt\Expression[$1]; } 205 | T_UNSET '(' variables_list ')' ';' { $$ = Stmt\Unset_[$3]; } 206 | T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement 207 { $$ = Stmt\Foreach_[$3, $5[0], ['keyVar' => null, 'byRef' => $5[1], 'stmts' => $7]]; } 208 | T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement 209 { $$ = Stmt\Foreach_[$3, $7[0], ['keyVar' => $5, 'byRef' => $7[1], 'stmts' => $9]]; } 210 | T_DECLARE '(' declare_list ')' declare_statement { $$ = Stmt\Declare_[$3, $5]; } 211 | T_TRY '{' inner_statement_list '}' catches optional_finally 212 { $$ = Stmt\TryCatch[$3, $5, $6]; $this->checkTryCatch($$); } 213 | T_THROW expr ';' { $$ = Stmt\Throw_[$2]; } 214 | T_GOTO identifier ';' { $$ = Stmt\Goto_[$2]; } 215 | identifier ':' { $$ = Stmt\Label[$1]; } 216 | expr error { $$ = Stmt\Expression[$1]; } 217 | error { $$ = array(); /* means: no statement */ } 218 ; 219 220 statement: 221 non_empty_statement { $$ = $1; } 222 | ';' 223 { makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); 224 if ($$ === null) $$ = array(); /* means: no statement */ } 225 ; 226 227 catches: 228 /* empty */ { init(); } 229 | catches catch { push($1, $2); } 230 ; 231 232 catch: 233 T_CATCH '(' name plain_variable ')' '{' inner_statement_list '}' 234 { $$ = Stmt\Catch_[array($3), $4, $7]; } 235 ; 236 237 optional_finally: 238 /* empty */ { $$ = null; } 239 | T_FINALLY '{' inner_statement_list '}' { $$ = Stmt\Finally_[$3]; } 240 ; 241 242 variables_list: 243 variable { init($1); } 244 | variables_list ',' variable { push($1, $3); } 245 ; 246 247 optional_ref: 248 /* empty */ { $$ = false; } 249 | '&' { $$ = true; } 250 ; 251 252 optional_ellipsis: 253 /* empty */ { $$ = false; } 254 | T_ELLIPSIS { $$ = true; } 255 ; 256 257 function_declaration_statement: 258 T_FUNCTION optional_ref identifier '(' parameter_list ')' optional_return_type '{' inner_statement_list '}' 259 { $$ = Stmt\Function_[$3, ['byRef' => $2, 'params' => $5, 'returnType' => $7, 'stmts' => $9]]; } 260 ; 261 262 class_declaration_statement: 263 class_entry_type identifier extends_from implements_list '{' class_statement_list '}' 264 { $$ = Stmt\Class_[$2, ['type' => $1, 'extends' => $3, 'implements' => $4, 'stmts' => $6]]; 265 $this->checkClass($$, #2); } 266 | T_INTERFACE identifier interface_extends_list '{' class_statement_list '}' 267 { $$ = Stmt\Interface_[$2, ['extends' => $3, 'stmts' => $5]]; 268 $this->checkInterface($$, #2); } 269 | T_TRAIT identifier '{' class_statement_list '}' 270 { $$ = Stmt\Trait_[$2, ['stmts' => $4]]; } 271 ; 272 273 class_entry_type: 274 T_CLASS { $$ = 0; } 275 | T_ABSTRACT T_CLASS { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } 276 | T_FINAL T_CLASS { $$ = Stmt\Class_::MODIFIER_FINAL; } 277 ; 278 279 extends_from: 280 /* empty */ { $$ = null; } 281 | T_EXTENDS class_name { $$ = $2; } 282 ; 283 284 interface_extends_list: 285 /* empty */ { $$ = array(); } 286 | T_EXTENDS class_name_list { $$ = $2; } 287 ; 288 289 implements_list: 290 /* empty */ { $$ = array(); } 291 | T_IMPLEMENTS class_name_list { $$ = $2; } 292 ; 293 294 class_name_list: 295 class_name { init($1); } 296 | class_name_list ',' class_name { push($1, $3); } 297 ; 298 299 for_statement: 300 statement { $$ = toArray($1); } 301 | ':' inner_statement_list T_ENDFOR ';' { $$ = $2; } 302 ; 303 304 foreach_statement: 305 statement { $$ = toArray($1); } 306 | ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; } 307 ; 308 309 declare_statement: 310 non_empty_statement { $$ = toArray($1); } 311 | ';' { $$ = null; } 312 | ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; } 313 ; 314 315 declare_list: 316 declare_list_element { init($1); } 317 | declare_list ',' declare_list_element { push($1, $3); } 318 ; 319 320 declare_list_element: 321 identifier '=' static_scalar { $$ = Stmt\DeclareDeclare[$1, $3]; } 322 ; 323 324 switch_case_list: 325 '{' case_list '}' { $$ = $2; } 326 | '{' ';' case_list '}' { $$ = $3; } 327 | ':' case_list T_ENDSWITCH ';' { $$ = $2; } 328 | ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; } 329 ; 330 331 case_list: 332 /* empty */ { init(); } 333 | case_list case { push($1, $2); } 334 ; 335 336 case: 337 T_CASE expr case_separator inner_statement_list_ex { $$ = Stmt\Case_[$2, $4]; } 338 | T_DEFAULT case_separator inner_statement_list_ex { $$ = Stmt\Case_[null, $3]; } 339 ; 340 341 case_separator: 342 ':' 343 | ';' 344 ; 345 346 while_statement: 347 statement { $$ = toArray($1); } 348 | ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; } 349 ; 350 351 elseif_list: 352 /* empty */ { init(); } 353 | elseif_list elseif { push($1, $2); } 354 ; 355 356 elseif: 357 T_ELSEIF parentheses_expr statement { $$ = Stmt\ElseIf_[$2, toArray($3)]; } 358 ; 359 360 new_elseif_list: 361 /* empty */ { init(); } 362 | new_elseif_list new_elseif { push($1, $2); } 363 ; 364 365 new_elseif: 366 T_ELSEIF parentheses_expr ':' inner_statement_list { $$ = Stmt\ElseIf_[$2, $4]; } 367 ; 368 369 else_single: 370 /* empty */ { $$ = null; } 371 | T_ELSE statement { $$ = Stmt\Else_[toArray($2)]; } 372 ; 373 374 new_else_single: 375 /* empty */ { $$ = null; } 376 | T_ELSE ':' inner_statement_list { $$ = Stmt\Else_[$3]; } 377 ; 378 379 foreach_variable: 380 variable { $$ = array($1, false); } 381 | '&' variable { $$ = array($2, true); } 382 | list_expr { $$ = array($1, false); } 383 ; 384 385 parameter_list: 386 non_empty_parameter_list { $$ = $1; } 387 | /* empty */ { $$ = array(); } 388 ; 389 390 non_empty_parameter_list: 391 parameter { init($1); } 392 | non_empty_parameter_list ',' parameter { push($1, $3); } 393 ; 394 395 parameter: 396 optional_param_type optional_ref optional_ellipsis plain_variable 397 { $$ = Node\Param[$4, null, $1, $2, $3]; $this->checkParam($$); } 398 | optional_param_type optional_ref optional_ellipsis plain_variable '=' static_scalar 399 { $$ = Node\Param[$4, $6, $1, $2, $3]; $this->checkParam($$); } 400 ; 401 402 type: 403 name { $$ = $1; } 404 | T_ARRAY { $$ = Node\Identifier['array']; } 405 | T_CALLABLE { $$ = Node\Identifier['callable']; } 406 ; 407 408 optional_param_type: 409 /* empty */ { $$ = null; } 410 | type { $$ = $1; } 411 ; 412 413 optional_return_type: 414 /* empty */ { $$ = null; } 415 | ':' type { $$ = $2; } 416 ; 417 418 argument_list: 419 '(' ')' { $$ = array(); } 420 | '(' non_empty_argument_list ')' { $$ = $2; } 421 | '(' yield_expr ')' { $$ = array(Node\Arg[$2, false, false]); } 422 ; 423 424 non_empty_argument_list: 425 argument { init($1); } 426 | non_empty_argument_list ',' argument { push($1, $3); } 427 ; 428 429 argument: 430 expr { $$ = Node\Arg[$1, false, false]; } 431 | '&' variable { $$ = Node\Arg[$2, true, false]; } 432 | T_ELLIPSIS expr { $$ = Node\Arg[$2, false, true]; } 433 ; 434 435 global_var_list: 436 global_var_list ',' global_var { push($1, $3); } 437 | global_var { init($1); } 438 ; 439 440 global_var: 441 plain_variable { $$ = $1; } 442 | '$' variable { $$ = Expr\Variable[$2]; } 443 | '$' '{' expr '}' { $$ = Expr\Variable[$3]; } 444 ; 445 446 static_var_list: 447 static_var_list ',' static_var { push($1, $3); } 448 | static_var { init($1); } 449 ; 450 451 static_var: 452 plain_variable { $$ = Stmt\StaticVar[$1, null]; } 453 | plain_variable '=' static_scalar { $$ = Stmt\StaticVar[$1, $3]; } 454 ; 455 456 class_statement_list_ex: 457 class_statement_list_ex class_statement { if ($2 !== null) { push($1, $2); } } 458 | /* empty */ { init(); } 459 ; 460 461 class_statement_list: 462 class_statement_list_ex 463 { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); 464 if ($nop !== null) { $1[] = $nop; } $$ = $1; } 465 ; 466 467 class_statement: 468 variable_modifiers property_declaration_list ';' 469 { $$ = Stmt\Property[$1, $2]; $this->checkProperty($$, #1); } 470 | T_CONST class_const_list ';' { $$ = Stmt\ClassConst[$2, 0]; } 471 | method_modifiers T_FUNCTION optional_ref identifier_ex '(' parameter_list ')' optional_return_type method_body 472 { $$ = Stmt\ClassMethod[$4, ['type' => $1, 'byRef' => $3, 'params' => $6, 'returnType' => $8, 'stmts' => $9]]; 473 $this->checkClassMethod($$, #1); } 474 | T_USE class_name_list trait_adaptations { $$ = Stmt\TraitUse[$2, $3]; } 475 ; 476 477 trait_adaptations: 478 ';' { $$ = array(); } 479 | '{' trait_adaptation_list '}' { $$ = $2; } 480 ; 481 482 trait_adaptation_list: 483 /* empty */ { init(); } 484 | trait_adaptation_list trait_adaptation { push($1, $2); } 485 ; 486 487 trait_adaptation: 488 trait_method_reference_fully_qualified T_INSTEADOF class_name_list ';' 489 { $$ = Stmt\TraitUseAdaptation\Precedence[$1[0], $1[1], $3]; } 490 | trait_method_reference T_AS member_modifier identifier_ex ';' 491 { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, $4]; } 492 | trait_method_reference T_AS member_modifier ';' 493 { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, null]; } 494 | trait_method_reference T_AS identifier ';' 495 { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } 496 | trait_method_reference T_AS reserved_non_modifiers_identifier ';' 497 { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } 498 ; 499 500 trait_method_reference_fully_qualified: 501 name T_PAAMAYIM_NEKUDOTAYIM identifier_ex { $$ = array($1, $3); } 502 ; 503 trait_method_reference: 504 trait_method_reference_fully_qualified { $$ = $1; } 505 | identifier_ex { $$ = array(null, $1); } 506 ; 507 508 method_body: 509 ';' /* abstract method */ { $$ = null; } 510 | '{' inner_statement_list '}' { $$ = $2; } 511 ; 512 513 variable_modifiers: 514 non_empty_member_modifiers { $$ = $1; } 515 | T_VAR { $$ = 0; } 516 ; 517 518 method_modifiers: 519 /* empty */ { $$ = 0; } 520 | non_empty_member_modifiers { $$ = $1; } 521 ; 522 523 non_empty_member_modifiers: 524 member_modifier { $$ = $1; } 525 | non_empty_member_modifiers member_modifier { $this->checkModifier($1, $2, #2); $$ = $1 | $2; } 526 ; 527 528 member_modifier: 529 T_PUBLIC { $$ = Stmt\Class_::MODIFIER_PUBLIC; } 530 | T_PROTECTED { $$ = Stmt\Class_::MODIFIER_PROTECTED; } 531 | T_PRIVATE { $$ = Stmt\Class_::MODIFIER_PRIVATE; } 532 | T_STATIC { $$ = Stmt\Class_::MODIFIER_STATIC; } 533 | T_ABSTRACT { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } 534 | T_FINAL { $$ = Stmt\Class_::MODIFIER_FINAL; } 535 ; 536 537 property_declaration_list: 538 property_declaration { init($1); } 539 | property_declaration_list ',' property_declaration { push($1, $3); } 540 ; 541 542 property_decl_name: 543 T_VARIABLE { $$ = Node\VarLikeIdentifier[parseVar($1)]; } 544 ; 545 546 property_declaration: 547 property_decl_name { $$ = Stmt\PropertyProperty[$1, null]; } 548 | property_decl_name '=' static_scalar { $$ = Stmt\PropertyProperty[$1, $3]; } 549 ; 550 551 expr_list: 552 expr_list ',' expr { push($1, $3); } 553 | expr { init($1); } 554 ; 555 556 for_expr: 557 /* empty */ { $$ = array(); } 558 | expr_list { $$ = $1; } 559 ; 560 561 expr: 562 variable { $$ = $1; } 563 | list_expr '=' expr { $$ = Expr\Assign[$1, $3]; } 564 | variable '=' expr { $$ = Expr\Assign[$1, $3]; } 565 | variable '=' '&' variable { $$ = Expr\AssignRef[$1, $4]; } 566 | variable '=' '&' new_expr { $$ = Expr\AssignRef[$1, $4]; } 567 | new_expr { $$ = $1; } 568 | T_CLONE expr { $$ = Expr\Clone_[$2]; } 569 | variable T_PLUS_EQUAL expr { $$ = Expr\AssignOp\Plus [$1, $3]; } 570 | variable T_MINUS_EQUAL expr { $$ = Expr\AssignOp\Minus [$1, $3]; } 571 | variable T_MUL_EQUAL expr { $$ = Expr\AssignOp\Mul [$1, $3]; } 572 | variable T_DIV_EQUAL expr { $$ = Expr\AssignOp\Div [$1, $3]; } 573 | variable T_CONCAT_EQUAL expr { $$ = Expr\AssignOp\Concat [$1, $3]; } 574 | variable T_MOD_EQUAL expr { $$ = Expr\AssignOp\Mod [$1, $3]; } 575 | variable T_AND_EQUAL expr { $$ = Expr\AssignOp\BitwiseAnd[$1, $3]; } 576 | variable T_OR_EQUAL expr { $$ = Expr\AssignOp\BitwiseOr [$1, $3]; } 577 | variable T_XOR_EQUAL expr { $$ = Expr\AssignOp\BitwiseXor[$1, $3]; } 578 | variable T_SL_EQUAL expr { $$ = Expr\AssignOp\ShiftLeft [$1, $3]; } 579 | variable T_SR_EQUAL expr { $$ = Expr\AssignOp\ShiftRight[$1, $3]; } 580 | variable T_POW_EQUAL expr { $$ = Expr\AssignOp\Pow [$1, $3]; } 581 | variable T_COALESCE_EQUAL expr { $$ = Expr\AssignOp\Coalesce [$1, $3]; } 582 | variable T_INC { $$ = Expr\PostInc[$1]; } 583 | T_INC variable { $$ = Expr\PreInc [$2]; } 584 | variable T_DEC { $$ = Expr\PostDec[$1]; } 585 | T_DEC variable { $$ = Expr\PreDec [$2]; } 586 | expr T_BOOLEAN_OR expr { $$ = Expr\BinaryOp\BooleanOr [$1, $3]; } 587 | expr T_BOOLEAN_AND expr { $$ = Expr\BinaryOp\BooleanAnd[$1, $3]; } 588 | expr T_LOGICAL_OR expr { $$ = Expr\BinaryOp\LogicalOr [$1, $3]; } 589 | expr T_LOGICAL_AND expr { $$ = Expr\BinaryOp\LogicalAnd[$1, $3]; } 590 | expr T_LOGICAL_XOR expr { $$ = Expr\BinaryOp\LogicalXor[$1, $3]; } 591 | expr '|' expr { $$ = Expr\BinaryOp\BitwiseOr [$1, $3]; } 592 | expr '&' expr { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } 593 | expr '^' expr { $$ = Expr\BinaryOp\BitwiseXor[$1, $3]; } 594 | expr '.' expr { $$ = Expr\BinaryOp\Concat [$1, $3]; } 595 | expr '+' expr { $$ = Expr\BinaryOp\Plus [$1, $3]; } 596 | expr '-' expr { $$ = Expr\BinaryOp\Minus [$1, $3]; } 597 | expr '*' expr { $$ = Expr\BinaryOp\Mul [$1, $3]; } 598 | expr '/' expr { $$ = Expr\BinaryOp\Div [$1, $3]; } 599 | expr '%' expr { $$ = Expr\BinaryOp\Mod [$1, $3]; } 600 | expr T_SL expr { $$ = Expr\BinaryOp\ShiftLeft [$1, $3]; } 601 | expr T_SR expr { $$ = Expr\BinaryOp\ShiftRight[$1, $3]; } 602 | expr T_POW expr { $$ = Expr\BinaryOp\Pow [$1, $3]; } 603 | '+' expr %prec T_INC { $$ = Expr\UnaryPlus [$2]; } 604 | '-' expr %prec T_INC { $$ = Expr\UnaryMinus[$2]; } 605 | '!' expr { $$ = Expr\BooleanNot[$2]; } 606 | '~' expr { $$ = Expr\BitwiseNot[$2]; } 607 | expr T_IS_IDENTICAL expr { $$ = Expr\BinaryOp\Identical [$1, $3]; } 608 | expr T_IS_NOT_IDENTICAL expr { $$ = Expr\BinaryOp\NotIdentical [$1, $3]; } 609 | expr T_IS_EQUAL expr { $$ = Expr\BinaryOp\Equal [$1, $3]; } 610 | expr T_IS_NOT_EQUAL expr { $$ = Expr\BinaryOp\NotEqual [$1, $3]; } 611 | expr T_SPACESHIP expr { $$ = Expr\BinaryOp\Spaceship [$1, $3]; } 612 | expr '<' expr { $$ = Expr\BinaryOp\Smaller [$1, $3]; } 613 | expr T_IS_SMALLER_OR_EQUAL expr { $$ = Expr\BinaryOp\SmallerOrEqual[$1, $3]; } 614 | expr '>' expr { $$ = Expr\BinaryOp\Greater [$1, $3]; } 615 | expr T_IS_GREATER_OR_EQUAL expr { $$ = Expr\BinaryOp\GreaterOrEqual[$1, $3]; } 616 | expr T_INSTANCEOF class_name_reference { $$ = Expr\Instanceof_[$1, $3]; } 617 | parentheses_expr { $$ = $1; } 618 /* we need a separate '(' new_expr ')' rule to avoid problems caused by a s/r conflict */ 619 | '(' new_expr ')' { $$ = $2; } 620 | expr '?' expr ':' expr { $$ = Expr\Ternary[$1, $3, $5]; } 621 | expr '?' ':' expr { $$ = Expr\Ternary[$1, null, $4]; } 622 | expr T_COALESCE expr { $$ = Expr\BinaryOp\Coalesce[$1, $3]; } 623 | T_ISSET '(' variables_list ')' { $$ = Expr\Isset_[$3]; } 624 | T_EMPTY '(' expr ')' { $$ = Expr\Empty_[$3]; } 625 | T_INCLUDE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE]; } 626 | T_INCLUDE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE_ONCE]; } 627 | T_EVAL parentheses_expr { $$ = Expr\Eval_[$2]; } 628 | T_REQUIRE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE]; } 629 | T_REQUIRE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE_ONCE]; } 630 | T_INT_CAST expr { $$ = Expr\Cast\Int_ [$2]; } 631 | T_DOUBLE_CAST expr 632 { $attrs = attributes(); 633 $attrs['kind'] = $this->getFloatCastKind($1); 634 $$ = new Expr\Cast\Double($2, $attrs); } 635 | T_STRING_CAST expr { $$ = Expr\Cast\String_ [$2]; } 636 | T_ARRAY_CAST expr { $$ = Expr\Cast\Array_ [$2]; } 637 | T_OBJECT_CAST expr { $$ = Expr\Cast\Object_ [$2]; } 638 | T_BOOL_CAST expr { $$ = Expr\Cast\Bool_ [$2]; } 639 | T_UNSET_CAST expr { $$ = Expr\Cast\Unset_ [$2]; } 640 | T_EXIT exit_expr 641 { $attrs = attributes(); 642 $attrs['kind'] = strtolower($1) === 'exit' ? Expr\Exit_::KIND_EXIT : Expr\Exit_::KIND_DIE; 643 $$ = new Expr\Exit_($2, $attrs); } 644 | '@' expr { $$ = Expr\ErrorSuppress[$2]; } 645 | scalar { $$ = $1; } 646 | array_expr { $$ = $1; } 647 | scalar_dereference { $$ = $1; } 648 | '`' backticks_expr '`' { $$ = Expr\ShellExec[$2]; } 649 | T_PRINT expr { $$ = Expr\Print_[$2]; } 650 | T_YIELD { $$ = Expr\Yield_[null, null]; } 651 | T_YIELD_FROM expr { $$ = Expr\YieldFrom[$2]; } 652 | T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type 653 '{' inner_statement_list '}' 654 { $$ = Expr\Closure[['static' => false, 'byRef' => $2, 'params' => $4, 'uses' => $6, 'returnType' => $7, 'stmts' => $9]]; } 655 | T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type 656 '{' inner_statement_list '}' 657 { $$ = Expr\Closure[['static' => true, 'byRef' => $3, 'params' => $5, 'uses' => $7, 'returnType' => $8, 'stmts' => $10]]; } 658 ; 659 660 parentheses_expr: 661 '(' expr ')' { $$ = $2; } 662 | '(' yield_expr ')' { $$ = $2; } 663 ; 664 665 yield_expr: 666 T_YIELD expr { $$ = Expr\Yield_[$2, null]; } 667 | T_YIELD expr T_DOUBLE_ARROW expr { $$ = Expr\Yield_[$4, $2]; } 668 ; 669 670 array_expr: 671 T_ARRAY '(' array_pair_list ')' 672 { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_LONG; 673 $$ = new Expr\Array_($3, $attrs); } 674 | '[' array_pair_list ']' 675 { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_SHORT; 676 $$ = new Expr\Array_($2, $attrs); } 677 ; 678 679 scalar_dereference: 680 array_expr '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 681 | T_CONSTANT_ENCAPSED_STRING '[' dim_offset ']' 682 { $attrs = attributes(); $attrs['kind'] = strKind($1); 683 $$ = Expr\ArrayDimFetch[new Scalar\String_(Scalar\String_::parse($1), $attrs), $3]; } 684 | constant '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 685 | scalar_dereference '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 686 /* alternative array syntax missing intentionally */ 687 ; 688 689 anonymous_class: 690 T_CLASS ctor_arguments extends_from implements_list '{' class_statement_list '}' 691 { $$ = array(Stmt\Class_[null, ['type' => 0, 'extends' => $3, 'implements' => $4, 'stmts' => $6]], $2); 692 $this->checkClass($$[0], -1); } 693 ; 694 695 new_expr: 696 T_NEW class_name_reference ctor_arguments { $$ = Expr\New_[$2, $3]; } 697 | T_NEW anonymous_class 698 { list($class, $ctorArgs) = $2; $$ = Expr\New_[$class, $ctorArgs]; } 699 ; 700 701 lexical_vars: 702 /* empty */ { $$ = array(); } 703 | T_USE '(' lexical_var_list ')' { $$ = $3; } 704 ; 705 706 lexical_var_list: 707 lexical_var { init($1); } 708 | lexical_var_list ',' lexical_var { push($1, $3); } 709 ; 710 711 lexical_var: 712 optional_ref plain_variable { $$ = Expr\ClosureUse[$2, $1]; } 713 ; 714 715 function_call: 716 name argument_list { $$ = Expr\FuncCall[$1, $2]; } 717 | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM identifier_ex argument_list 718 { $$ = Expr\StaticCall[$1, $3, $4]; } 719 | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '{' expr '}' argument_list 720 { $$ = Expr\StaticCall[$1, $4, $6]; } 721 | static_property argument_list 722 { $$ = $this->fixupPhp5StaticPropCall($1, $2, attributes()); } 723 | variable_without_objects argument_list 724 { $$ = Expr\FuncCall[$1, $2]; } 725 | function_call '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 726 /* alternative array syntax missing intentionally */ 727 ; 728 729 class_name: 730 T_STATIC { $$ = Name[$1]; } 731 | name { $$ = $1; } 732 ; 733 734 name: 735 T_STRING { $$ = Name[$1]; } 736 | T_NAME_QUALIFIED { $$ = Name[$1]; } 737 | T_NAME_FULLY_QUALIFIED { $$ = Name\FullyQualified[substr($1, 1)]; } 738 | T_NAME_RELATIVE { $$ = Name\Relative[substr($1, 10)]; } 739 ; 740 741 class_name_reference: 742 class_name { $$ = $1; } 743 | dynamic_class_name_reference { $$ = $1; } 744 ; 745 746 dynamic_class_name_reference: 747 object_access_for_dcnr { $$ = $1; } 748 | base_variable { $$ = $1; } 749 ; 750 751 class_name_or_var: 752 class_name { $$ = $1; } 753 | reference_variable { $$ = $1; } 754 ; 755 756 object_access_for_dcnr: 757 base_variable T_OBJECT_OPERATOR object_property 758 { $$ = Expr\PropertyFetch[$1, $3]; } 759 | object_access_for_dcnr T_OBJECT_OPERATOR object_property 760 { $$ = Expr\PropertyFetch[$1, $3]; } 761 | object_access_for_dcnr '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 762 | object_access_for_dcnr '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } 763 ; 764 765 exit_expr: 766 /* empty */ { $$ = null; } 767 | '(' ')' { $$ = null; } 768 | parentheses_expr { $$ = $1; } 769 ; 770 771 backticks_expr: 772 /* empty */ { $$ = array(); } 773 | T_ENCAPSED_AND_WHITESPACE 774 { $$ = array(Scalar\EncapsedStringPart[Scalar\String_::parseEscapeSequences($1, '`', false)]); } 775 | encaps_list { parseEncapsed($1, '`', false); $$ = $1; } 776 ; 777 778 ctor_arguments: 779 /* empty */ { $$ = array(); } 780 | argument_list { $$ = $1; } 781 ; 782 783 common_scalar: 784 T_LNUMBER { $$ = $this->parseLNumber($1, attributes(), true); } 785 | T_DNUMBER { $$ = Scalar\DNumber[Scalar\DNumber::parse($1)]; } 786 | T_CONSTANT_ENCAPSED_STRING 787 { $attrs = attributes(); $attrs['kind'] = strKind($1); 788 $$ = new Scalar\String_(Scalar\String_::parse($1, false), $attrs); } 789 | T_LINE { $$ = Scalar\MagicConst\Line[]; } 790 | T_FILE { $$ = Scalar\MagicConst\File[]; } 791 | T_DIR { $$ = Scalar\MagicConst\Dir[]; } 792 | T_CLASS_C { $$ = Scalar\MagicConst\Class_[]; } 793 | T_TRAIT_C { $$ = Scalar\MagicConst\Trait_[]; } 794 | T_METHOD_C { $$ = Scalar\MagicConst\Method[]; } 795 | T_FUNC_C { $$ = Scalar\MagicConst\Function_[]; } 796 | T_NS_C { $$ = Scalar\MagicConst\Namespace_[]; } 797 | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC 798 { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), false); } 799 | T_START_HEREDOC T_END_HEREDOC 800 { $$ = $this->parseDocString($1, '', $2, attributes(), stackAttributes(#2), false); } 801 ; 802 803 static_scalar: 804 common_scalar { $$ = $1; } 805 | class_name T_PAAMAYIM_NEKUDOTAYIM identifier_ex { $$ = Expr\ClassConstFetch[$1, $3]; } 806 | name { $$ = Expr\ConstFetch[$1]; } 807 | T_ARRAY '(' static_array_pair_list ')' { $$ = Expr\Array_[$3]; } 808 | '[' static_array_pair_list ']' { $$ = Expr\Array_[$2]; } 809 | static_operation { $$ = $1; } 810 ; 811 812 static_operation: 813 static_scalar T_BOOLEAN_OR static_scalar { $$ = Expr\BinaryOp\BooleanOr [$1, $3]; } 814 | static_scalar T_BOOLEAN_AND static_scalar { $$ = Expr\BinaryOp\BooleanAnd[$1, $3]; } 815 | static_scalar T_LOGICAL_OR static_scalar { $$ = Expr\BinaryOp\LogicalOr [$1, $3]; } 816 | static_scalar T_LOGICAL_AND static_scalar { $$ = Expr\BinaryOp\LogicalAnd[$1, $3]; } 817 | static_scalar T_LOGICAL_XOR static_scalar { $$ = Expr\BinaryOp\LogicalXor[$1, $3]; } 818 | static_scalar '|' static_scalar { $$ = Expr\BinaryOp\BitwiseOr [$1, $3]; } 819 | static_scalar '&' static_scalar { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } 820 | static_scalar '^' static_scalar { $$ = Expr\BinaryOp\BitwiseXor[$1, $3]; } 821 | static_scalar '.' static_scalar { $$ = Expr\BinaryOp\Concat [$1, $3]; } 822 | static_scalar '+' static_scalar { $$ = Expr\BinaryOp\Plus [$1, $3]; } 823 | static_scalar '-' static_scalar { $$ = Expr\BinaryOp\Minus [$1, $3]; } 824 | static_scalar '*' static_scalar { $$ = Expr\BinaryOp\Mul [$1, $3]; } 825 | static_scalar '/' static_scalar { $$ = Expr\BinaryOp\Div [$1, $3]; } 826 | static_scalar '%' static_scalar { $$ = Expr\BinaryOp\Mod [$1, $3]; } 827 | static_scalar T_SL static_scalar { $$ = Expr\BinaryOp\ShiftLeft [$1, $3]; } 828 | static_scalar T_SR static_scalar { $$ = Expr\BinaryOp\ShiftRight[$1, $3]; } 829 | static_scalar T_POW static_scalar { $$ = Expr\BinaryOp\Pow [$1, $3]; } 830 | '+' static_scalar %prec T_INC { $$ = Expr\UnaryPlus [$2]; } 831 | '-' static_scalar %prec T_INC { $$ = Expr\UnaryMinus[$2]; } 832 | '!' static_scalar { $$ = Expr\BooleanNot[$2]; } 833 | '~' static_scalar { $$ = Expr\BitwiseNot[$2]; } 834 | static_scalar T_IS_IDENTICAL static_scalar { $$ = Expr\BinaryOp\Identical [$1, $3]; } 835 | static_scalar T_IS_NOT_IDENTICAL static_scalar { $$ = Expr\BinaryOp\NotIdentical [$1, $3]; } 836 | static_scalar T_IS_EQUAL static_scalar { $$ = Expr\BinaryOp\Equal [$1, $3]; } 837 | static_scalar T_IS_NOT_EQUAL static_scalar { $$ = Expr\BinaryOp\NotEqual [$1, $3]; } 838 | static_scalar '<' static_scalar { $$ = Expr\BinaryOp\Smaller [$1, $3]; } 839 | static_scalar T_IS_SMALLER_OR_EQUAL static_scalar { $$ = Expr\BinaryOp\SmallerOrEqual[$1, $3]; } 840 | static_scalar '>' static_scalar { $$ = Expr\BinaryOp\Greater [$1, $3]; } 841 | static_scalar T_IS_GREATER_OR_EQUAL static_scalar { $$ = Expr\BinaryOp\GreaterOrEqual[$1, $3]; } 842 | static_scalar '?' static_scalar ':' static_scalar { $$ = Expr\Ternary[$1, $3, $5]; } 843 | static_scalar '?' ':' static_scalar { $$ = Expr\Ternary[$1, null, $4]; } 844 | static_scalar '[' static_scalar ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 845 | '(' static_scalar ')' { $$ = $2; } 846 ; 847 848 constant: 849 name { $$ = Expr\ConstFetch[$1]; } 850 | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM identifier_ex 851 { $$ = Expr\ClassConstFetch[$1, $3]; } 852 ; 853 854 scalar: 855 common_scalar { $$ = $1; } 856 | constant { $$ = $1; } 857 | '"' encaps_list '"' 858 { $attrs = attributes(); $attrs['kind'] = Scalar\String_::KIND_DOUBLE_QUOTED; 859 parseEncapsed($2, '"', true); $$ = new Scalar\Encapsed($2, $attrs); } 860 | T_START_HEREDOC encaps_list T_END_HEREDOC 861 { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), true); } 862 ; 863 864 static_array_pair_list: 865 /* empty */ { $$ = array(); } 866 | non_empty_static_array_pair_list optional_comma { $$ = $1; } 867 ; 868 869 optional_comma: 870 /* empty */ 871 | ',' 872 ; 873 874 non_empty_static_array_pair_list: 875 non_empty_static_array_pair_list ',' static_array_pair { push($1, $3); } 876 | static_array_pair { init($1); } 877 ; 878 879 static_array_pair: 880 static_scalar T_DOUBLE_ARROW static_scalar { $$ = Expr\ArrayItem[$3, $1, false]; } 881 | static_scalar { $$ = Expr\ArrayItem[$1, null, false]; } 882 ; 883 884 variable: 885 object_access { $$ = $1; } 886 | base_variable { $$ = $1; } 887 | function_call { $$ = $1; } 888 | new_expr_array_deref { $$ = $1; } 889 ; 890 891 new_expr_array_deref: 892 '(' new_expr ')' '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$2, $5]; } 893 | new_expr_array_deref '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 894 /* alternative array syntax missing intentionally */ 895 ; 896 897 object_access: 898 variable_or_new_expr T_OBJECT_OPERATOR object_property 899 { $$ = Expr\PropertyFetch[$1, $3]; } 900 | variable_or_new_expr T_OBJECT_OPERATOR object_property argument_list 901 { $$ = Expr\MethodCall[$1, $3, $4]; } 902 | object_access argument_list { $$ = Expr\FuncCall[$1, $2]; } 903 | object_access '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 904 | object_access '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } 905 ; 906 907 variable_or_new_expr: 908 variable { $$ = $1; } 909 | '(' new_expr ')' { $$ = $2; } 910 ; 911 912 variable_without_objects: 913 reference_variable { $$ = $1; } 914 | '$' variable_without_objects { $$ = Expr\Variable[$2]; } 915 ; 916 917 base_variable: 918 variable_without_objects { $$ = $1; } 919 | static_property { $$ = $1; } 920 ; 921 922 static_property: 923 class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' reference_variable 924 { $$ = Expr\StaticPropertyFetch[$1, $4]; } 925 | static_property_with_arrays { $$ = $1; } 926 ; 927 928 static_property_simple_name: 929 T_VARIABLE 930 { $var = parseVar($1); $$ = \is_string($var) ? Node\VarLikeIdentifier[$var] : $var; } 931 ; 932 933 static_property_with_arrays: 934 class_name_or_var T_PAAMAYIM_NEKUDOTAYIM static_property_simple_name 935 { $$ = Expr\StaticPropertyFetch[$1, $3]; } 936 | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' '{' expr '}' 937 { $$ = Expr\StaticPropertyFetch[$1, $5]; } 938 | static_property_with_arrays '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 939 | static_property_with_arrays '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } 940 ; 941 942 reference_variable: 943 reference_variable '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 944 | reference_variable '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } 945 | plain_variable { $$ = $1; } 946 | '$' '{' expr '}' { $$ = Expr\Variable[$3]; } 947 ; 948 949 dim_offset: 950 /* empty */ { $$ = null; } 951 | expr { $$ = $1; } 952 ; 953 954 object_property: 955 identifier { $$ = $1; } 956 | '{' expr '}' { $$ = $2; } 957 | variable_without_objects { $$ = $1; } 958 | error { $$ = Expr\Error[]; $this->errorState = 2; } 959 ; 960 961 list_expr: 962 T_LIST '(' list_expr_elements ')' { $$ = Expr\List_[$3]; } 963 ; 964 965 list_expr_elements: 966 list_expr_elements ',' list_expr_element { push($1, $3); } 967 | list_expr_element { init($1); } 968 ; 969 970 list_expr_element: 971 variable { $$ = Expr\ArrayItem[$1, null, false]; } 972 | list_expr { $$ = Expr\ArrayItem[$1, null, false]; } 973 | /* empty */ { $$ = null; } 974 ; 975 976 array_pair_list: 977 /* empty */ { $$ = array(); } 978 | non_empty_array_pair_list optional_comma { $$ = $1; } 979 ; 980 981 non_empty_array_pair_list: 982 non_empty_array_pair_list ',' array_pair { push($1, $3); } 983 | array_pair { init($1); } 984 ; 985 986 array_pair: 987 expr T_DOUBLE_ARROW expr { $$ = Expr\ArrayItem[$3, $1, false]; } 988 | expr { $$ = Expr\ArrayItem[$1, null, false]; } 989 | expr T_DOUBLE_ARROW '&' variable { $$ = Expr\ArrayItem[$4, $1, true]; } 990 | '&' variable { $$ = Expr\ArrayItem[$2, null, true]; } 991 | T_ELLIPSIS expr { $$ = Expr\ArrayItem[$2, null, false, attributes(), true]; } 992 ; 993 994 encaps_list: 995 encaps_list encaps_var { push($1, $2); } 996 | encaps_list encaps_string_part { push($1, $2); } 997 | encaps_var { init($1); } 998 | encaps_string_part encaps_var { init($1, $2); } 999 ; 1000 1001 encaps_string_part: 1002 T_ENCAPSED_AND_WHITESPACE { $$ = Scalar\EncapsedStringPart[$1]; } 1003 ; 1004 1005 encaps_str_varname: 1006 T_STRING_VARNAME { $$ = Expr\Variable[$1]; } 1007 ; 1008 1009 encaps_var: 1010 plain_variable { $$ = $1; } 1011 | plain_variable '[' encaps_var_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } 1012 | plain_variable T_OBJECT_OPERATOR identifier { $$ = Expr\PropertyFetch[$1, $3]; } 1013 | T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Expr\Variable[$2]; } 1014 | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Expr\Variable[$2]; } 1015 | T_DOLLAR_OPEN_CURLY_BRACES encaps_str_varname '[' expr ']' '}' 1016 { $$ = Expr\ArrayDimFetch[$2, $4]; } 1017 | T_CURLY_OPEN variable '}' { $$ = $2; } 1018 ; 1019 1020 encaps_var_offset: 1021 T_STRING { $$ = Scalar\String_[$1]; } 1022 | T_NUM_STRING { $$ = $this->parseNumString($1, attributes()); } 1023 | plain_variable { $$ = $1; } 1024 ; 1025 1026 %% 1027