1 %require "3.0" 2 %{ 3 /* 4 +----------------------------------------------------------------------+ 5 | Zend Engine | 6 +----------------------------------------------------------------------+ 7 | Copyright (c) Zend Technologies Ltd. (http://www.zend.com) | 8 +----------------------------------------------------------------------+ 9 | This source file is subject to version 2.00 of the Zend license, | 10 | that is bundled with this package in the file LICENSE, and is | 11 | available through the world-wide-web at the following url: | 12 | http://www.zend.com/license/2_00.txt. | 13 | If you did not receive a copy of the Zend license and are unable to | 14 | obtain it through the world-wide-web, please send a note to | 15 | license@zend.com so we can mail you a copy immediately. | 16 +----------------------------------------------------------------------+ 17 | Authors: Andi Gutmans <andi@php.net> | 18 | Zeev Suraski <zeev@php.net> | 19 | Nikita Popov <nikic@php.net> | 20 +----------------------------------------------------------------------+ 21 */ 22 23 #include "zend_compile.h" 24 #include "zend.h" 25 #include "zend_list.h" 26 #include "zend_globals.h" 27 #include "zend_API.h" 28 #include "zend_constants.h" 29 #include "zend_language_scanner.h" 30 #include "zend_exceptions.h" 31 32 #define YYSIZE_T size_t 33 #define yytnamerr zend_yytnamerr 34 static YYSIZE_T zend_yytnamerr(char*, const char*); 35 36 #define YYSTYPE zend_parser_stack_elem 37 38 #ifdef _MSC_VER 39 #define YYMALLOC malloc 40 #define YYFREE free 41 #endif 42 43 %} 44 45 %define api.pure full 46 %define parse.error verbose 47 %expect 0 48 49 %code requires { 50 } 51 52 %destructor { zend_ast_destroy($$); } <ast> 53 %destructor { if ($$) zend_string_release_ex($$, 0); } <str> 54 55 %precedence PREC_ARROW_FUNCTION 56 %precedence T_INCLUDE T_INCLUDE_ONCE T_REQUIRE T_REQUIRE_ONCE 57 %left T_LOGICAL_OR 58 %left T_LOGICAL_XOR 59 %left T_LOGICAL_AND 60 %precedence T_PRINT 61 %precedence T_YIELD 62 %precedence T_DOUBLE_ARROW 63 %precedence T_YIELD_FROM 64 %precedence '=' T_PLUS_EQUAL T_MINUS_EQUAL T_MUL_EQUAL T_DIV_EQUAL T_CONCAT_EQUAL T_MOD_EQUAL T_AND_EQUAL T_OR_EQUAL T_XOR_EQUAL T_SL_EQUAL T_SR_EQUAL T_POW_EQUAL T_COALESCE_EQUAL 65 %left '?' ':' 66 %right T_COALESCE 67 %left T_BOOLEAN_OR 68 %left T_BOOLEAN_AND 69 %left '|' 70 %left '^' 71 %left '&' 72 %nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL T_SPACESHIP 73 %nonassoc '<' T_IS_SMALLER_OR_EQUAL '>' T_IS_GREATER_OR_EQUAL 74 %left T_SL T_SR 75 %left '+' '-' '.' 76 %left '*' '/' '%' 77 %precedence '!' 78 %precedence T_INSTANCEOF 79 %precedence '~' T_INT_CAST T_DOUBLE_CAST T_STRING_CAST T_ARRAY_CAST T_OBJECT_CAST T_BOOL_CAST T_UNSET_CAST '@' 80 %right T_POW 81 %precedence T_NEW T_CLONE 82 83 /* Resolve danging else conflict */ 84 %precedence T_NOELSE 85 %precedence T_ELSEIF 86 %precedence T_ELSE 87 88 %token <ast> T_LNUMBER "integer number (T_LNUMBER)" 89 %token <ast> T_DNUMBER "floating-point number (T_DNUMBER)" 90 %token <ast> T_STRING "identifier (T_STRING)" 91 %token <ast> T_VARIABLE "variable (T_VARIABLE)" 92 %token <ast> T_INLINE_HTML 93 %token <ast> T_ENCAPSED_AND_WHITESPACE "quoted-string and whitespace (T_ENCAPSED_AND_WHITESPACE)" 94 %token <ast> T_CONSTANT_ENCAPSED_STRING "quoted-string (T_CONSTANT_ENCAPSED_STRING)" 95 %token <ast> T_STRING_VARNAME "variable name (T_STRING_VARNAME)" 96 %token <ast> T_NUM_STRING "number (T_NUM_STRING)" 97 98 %token END 0 "end of file" 99 %token T_INCLUDE "include (T_INCLUDE)" 100 %token T_INCLUDE_ONCE "include_once (T_INCLUDE_ONCE)" 101 %token T_EVAL "eval (T_EVAL)" 102 %token T_REQUIRE "require (T_REQUIRE)" 103 %token T_REQUIRE_ONCE "require_once (T_REQUIRE_ONCE)" 104 %token T_LOGICAL_OR "or (T_LOGICAL_OR)" 105 %token T_LOGICAL_XOR "xor (T_LOGICAL_XOR)" 106 %token T_LOGICAL_AND "and (T_LOGICAL_AND)" 107 %token T_PRINT "print (T_PRINT)" 108 %token T_YIELD "yield (T_YIELD)" 109 %token T_YIELD_FROM "yield from (T_YIELD_FROM)" 110 %token T_PLUS_EQUAL "+= (T_PLUS_EQUAL)" 111 %token T_MINUS_EQUAL "-= (T_MINUS_EQUAL)" 112 %token T_MUL_EQUAL "*= (T_MUL_EQUAL)" 113 %token T_DIV_EQUAL "/= (T_DIV_EQUAL)" 114 %token T_CONCAT_EQUAL ".= (T_CONCAT_EQUAL)" 115 %token T_MOD_EQUAL "%= (T_MOD_EQUAL)" 116 %token T_AND_EQUAL "&= (T_AND_EQUAL)" 117 %token T_OR_EQUAL "|= (T_OR_EQUAL)" 118 %token T_XOR_EQUAL "^= (T_XOR_EQUAL)" 119 %token T_SL_EQUAL "<<= (T_SL_EQUAL)" 120 %token T_SR_EQUAL ">>= (T_SR_EQUAL)" 121 %token T_COALESCE_EQUAL "??= (T_COALESCE_EQUAL)" 122 %token T_BOOLEAN_OR "|| (T_BOOLEAN_OR)" 123 %token T_BOOLEAN_AND "&& (T_BOOLEAN_AND)" 124 %token T_IS_EQUAL "== (T_IS_EQUAL)" 125 %token T_IS_NOT_EQUAL "!= (T_IS_NOT_EQUAL)" 126 %token T_IS_IDENTICAL "=== (T_IS_IDENTICAL)" 127 %token T_IS_NOT_IDENTICAL "!== (T_IS_NOT_IDENTICAL)" 128 %token T_IS_SMALLER_OR_EQUAL "<= (T_IS_SMALLER_OR_EQUAL)" 129 %token T_IS_GREATER_OR_EQUAL ">= (T_IS_GREATER_OR_EQUAL)" 130 %token T_SPACESHIP "<=> (T_SPACESHIP)" 131 %token T_SL "<< (T_SL)" 132 %token T_SR ">> (T_SR)" 133 %token T_INSTANCEOF "instanceof (T_INSTANCEOF)" 134 %token T_INC "++ (T_INC)" 135 %token T_DEC "-- (T_DEC)" 136 %token T_INT_CAST "(int) (T_INT_CAST)" 137 %token T_DOUBLE_CAST "(double) (T_DOUBLE_CAST)" 138 %token T_STRING_CAST "(string) (T_STRING_CAST)" 139 %token T_ARRAY_CAST "(array) (T_ARRAY_CAST)" 140 %token T_OBJECT_CAST "(object) (T_OBJECT_CAST)" 141 %token T_BOOL_CAST "(bool) (T_BOOL_CAST)" 142 %token T_UNSET_CAST "(unset) (T_UNSET_CAST)" 143 %token T_NEW "new (T_NEW)" 144 %token T_CLONE "clone (T_CLONE)" 145 %token T_EXIT "exit (T_EXIT)" 146 %token T_IF "if (T_IF)" 147 %token T_ELSEIF "elseif (T_ELSEIF)" 148 %token T_ELSE "else (T_ELSE)" 149 %token T_ENDIF "endif (T_ENDIF)" 150 %token T_ECHO "echo (T_ECHO)" 151 %token T_DO "do (T_DO)" 152 %token T_WHILE "while (T_WHILE)" 153 %token T_ENDWHILE "endwhile (T_ENDWHILE)" 154 %token T_FOR "for (T_FOR)" 155 %token T_ENDFOR "endfor (T_ENDFOR)" 156 %token T_FOREACH "foreach (T_FOREACH)" 157 %token T_ENDFOREACH "endforeach (T_ENDFOREACH)" 158 %token T_DECLARE "declare (T_DECLARE)" 159 %token T_ENDDECLARE "enddeclare (T_ENDDECLARE)" 160 %token T_AS "as (T_AS)" 161 %token T_SWITCH "switch (T_SWITCH)" 162 %token T_ENDSWITCH "endswitch (T_ENDSWITCH)" 163 %token T_CASE "case (T_CASE)" 164 %token T_DEFAULT "default (T_DEFAULT)" 165 %token T_BREAK "break (T_BREAK)" 166 %token T_CONTINUE "continue (T_CONTINUE)" 167 %token T_GOTO "goto (T_GOTO)" 168 %token T_FUNCTION "function (T_FUNCTION)" 169 %token T_FN "fn (T_FN)" 170 %token T_CONST "const (T_CONST)" 171 %token T_RETURN "return (T_RETURN)" 172 %token T_TRY "try (T_TRY)" 173 %token T_CATCH "catch (T_CATCH)" 174 %token T_FINALLY "finally (T_FINALLY)" 175 %token T_THROW "throw (T_THROW)" 176 %token T_USE "use (T_USE)" 177 %token T_INSTEADOF "insteadof (T_INSTEADOF)" 178 %token T_GLOBAL "global (T_GLOBAL)" 179 %token T_STATIC "static (T_STATIC)" 180 %token T_ABSTRACT "abstract (T_ABSTRACT)" 181 %token T_FINAL "final (T_FINAL)" 182 %token T_PRIVATE "private (T_PRIVATE)" 183 %token T_PROTECTED "protected (T_PROTECTED)" 184 %token T_PUBLIC "public (T_PUBLIC)" 185 %token T_VAR "var (T_VAR)" 186 %token T_UNSET "unset (T_UNSET)" 187 %token T_ISSET "isset (T_ISSET)" 188 %token T_EMPTY "empty (T_EMPTY)" 189 %token T_HALT_COMPILER "__halt_compiler (T_HALT_COMPILER)" 190 %token T_CLASS "class (T_CLASS)" 191 %token T_TRAIT "trait (T_TRAIT)" 192 %token T_INTERFACE "interface (T_INTERFACE)" 193 %token T_EXTENDS "extends (T_EXTENDS)" 194 %token T_IMPLEMENTS "implements (T_IMPLEMENTS)" 195 %token T_OBJECT_OPERATOR "-> (T_OBJECT_OPERATOR)" 196 %token T_DOUBLE_ARROW "=> (T_DOUBLE_ARROW)" 197 %token T_LIST "list (T_LIST)" 198 %token T_ARRAY "array (T_ARRAY)" 199 %token T_CALLABLE "callable (T_CALLABLE)" 200 %token T_LINE "__LINE__ (T_LINE)" 201 %token T_FILE "__FILE__ (T_FILE)" 202 %token T_DIR "__DIR__ (T_DIR)" 203 %token T_CLASS_C "__CLASS__ (T_CLASS_C)" 204 %token T_TRAIT_C "__TRAIT__ (T_TRAIT_C)" 205 %token T_METHOD_C "__METHOD__ (T_METHOD_C)" 206 %token T_FUNC_C "__FUNCTION__ (T_FUNC_C)" 207 %token T_COMMENT "comment (T_COMMENT)" 208 %token T_DOC_COMMENT "doc comment (T_DOC_COMMENT)" 209 %token T_OPEN_TAG "open tag (T_OPEN_TAG)" 210 %token T_OPEN_TAG_WITH_ECHO "open tag with echo (T_OPEN_TAG_WITH_ECHO)" 211 %token T_CLOSE_TAG "close tag (T_CLOSE_TAG)" 212 %token T_WHITESPACE "whitespace (T_WHITESPACE)" 213 %token T_START_HEREDOC "heredoc start (T_START_HEREDOC)" 214 %token T_END_HEREDOC "heredoc end (T_END_HEREDOC)" 215 %token T_DOLLAR_OPEN_CURLY_BRACES "${ (T_DOLLAR_OPEN_CURLY_BRACES)" 216 %token T_CURLY_OPEN "{$ (T_CURLY_OPEN)" 217 %token T_PAAMAYIM_NEKUDOTAYIM ":: (T_PAAMAYIM_NEKUDOTAYIM)" 218 %token T_NAMESPACE "namespace (T_NAMESPACE)" 219 %token T_NS_C "__NAMESPACE__ (T_NS_C)" 220 %token T_NS_SEPARATOR "\\ (T_NS_SEPARATOR)" 221 %token T_ELLIPSIS "... (T_ELLIPSIS)" 222 %token T_COALESCE "?? (T_COALESCE)" 223 %token T_POW "** (T_POW)" 224 %token T_POW_EQUAL "**= (T_POW_EQUAL)" 225 %token T_BAD_CHARACTER "invalid character (T_BAD_CHARACTER)" 226 227 /* Token used to force a parse error from the lexer */ 228 %token T_ERROR 229 230 %type <ast> top_statement namespace_name name statement function_declaration_statement 231 %type <ast> class_declaration_statement trait_declaration_statement 232 %type <ast> interface_declaration_statement interface_extends_list 233 %type <ast> group_use_declaration inline_use_declarations inline_use_declaration 234 %type <ast> mixed_group_use_declaration use_declaration unprefixed_use_declaration 235 %type <ast> unprefixed_use_declarations const_decl inner_statement 236 %type <ast> expr optional_expr while_statement for_statement foreach_variable 237 %type <ast> foreach_statement declare_statement finally_statement unset_variable variable 238 %type <ast> extends_from parameter optional_type argument global_var 239 %type <ast> static_var class_statement trait_adaptation trait_precedence trait_alias 240 %type <ast> absolute_trait_method_reference trait_method_reference property echo_expr 241 %type <ast> new_expr anonymous_class class_name class_name_reference simple_variable 242 %type <ast> internal_functions_in_yacc 243 %type <ast> exit_expr scalar backticks_expr lexical_var function_call member_name property_name 244 %type <ast> variable_class_name dereferencable_scalar constant dereferencable 245 %type <ast> callable_expr callable_variable static_member new_variable 246 %type <ast> encaps_var encaps_var_offset isset_variables 247 %type <ast> top_statement_list use_declarations const_list inner_statement_list if_stmt 248 %type <ast> alt_if_stmt for_exprs switch_case_list global_var_list static_var_list 249 %type <ast> echo_expr_list unset_variables catch_name_list catch_list parameter_list class_statement_list 250 %type <ast> implements_list case_list if_stmt_without_else 251 %type <ast> non_empty_parameter_list argument_list non_empty_argument_list property_list 252 %type <ast> class_const_list class_const_decl name_list trait_adaptations method_body non_empty_for_exprs 253 %type <ast> ctor_arguments alt_if_stmt_without_else trait_adaptation_list lexical_vars 254 %type <ast> lexical_var_list encaps_list 255 %type <ast> array_pair non_empty_array_pair_list array_pair_list possible_array_pair 256 %type <ast> isset_variable type return_type type_expr 257 %type <ast> identifier 258 %type <ast> inline_function 259 260 %type <num> returns_ref function fn is_reference is_variadic variable_modifiers 261 %type <num> method_modifiers non_empty_member_modifiers member_modifier 262 %type <num> class_modifiers class_modifier use_type backup_fn_flags 263 264 %type <ptr> backup_lex_pos 265 %type <str> backup_doc_comment 266 267 %% /* Rules */ 268 269 start: 270 top_statement_list { CG(ast) = $1; } 271 ; 272 273 reserved_non_modifiers: 274 T_INCLUDE | T_INCLUDE_ONCE | T_EVAL | T_REQUIRE | T_REQUIRE_ONCE | T_LOGICAL_OR | T_LOGICAL_XOR | T_LOGICAL_AND 275 | T_INSTANCEOF | T_NEW | T_CLONE | T_EXIT | T_IF | T_ELSEIF | T_ELSE | T_ENDIF | T_ECHO | T_DO | T_WHILE | T_ENDWHILE 276 | T_FOR | T_ENDFOR | T_FOREACH | T_ENDFOREACH | T_DECLARE | T_ENDDECLARE | T_AS | T_TRY | T_CATCH | T_FINALLY 277 | T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO 278 | T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT | T_BREAK 279 | T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE | T_CLASS 280 | T_CLASS_C | T_TRAIT_C | T_FUNC_C | T_METHOD_C | T_LINE | T_FILE | T_DIR | T_NS_C | T_FN 281 ; 282 283 semi_reserved: 284 reserved_non_modifiers 285 | T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC 286 ; 287 288 identifier: 289 T_STRING { $$ = $1; } 290 | semi_reserved { 291 zval zv; 292 zend_lex_tstring(&zv); 293 $$ = zend_ast_create_zval(&zv); 294 } 295 ; 296 297 top_statement_list: 298 top_statement_list top_statement { $$ = zend_ast_list_add($1, $2); } 299 | /* empty */ { $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); } 300 ; 301 302 namespace_name: 303 T_STRING { $$ = $1; } 304 | namespace_name T_NS_SEPARATOR T_STRING { $$ = zend_ast_append_str($1, $3); } 305 ; 306 307 name: 308 namespace_name { $$ = $1; $$->attr = ZEND_NAME_NOT_FQ; } 309 | T_NAMESPACE T_NS_SEPARATOR namespace_name { $$ = $3; $$->attr = ZEND_NAME_RELATIVE; } 310 | T_NS_SEPARATOR namespace_name { $$ = $2; $$->attr = ZEND_NAME_FQ; } 311 ; 312 313 top_statement: 314 statement { $$ = $1; } 315 | function_declaration_statement { $$ = $1; } 316 | class_declaration_statement { $$ = $1; } 317 | trait_declaration_statement { $$ = $1; } 318 | interface_declaration_statement { $$ = $1; } 319 | T_HALT_COMPILER '(' ')' ';' 320 { $$ = zend_ast_create(ZEND_AST_HALT_COMPILER, 321 zend_ast_create_zval_from_long(zend_get_scanned_file_offset())); 322 zend_stop_lexing(); } 323 | T_NAMESPACE namespace_name ';' 324 { $$ = zend_ast_create(ZEND_AST_NAMESPACE, $2, NULL); 325 RESET_DOC_COMMENT(); } 326 | T_NAMESPACE namespace_name { RESET_DOC_COMMENT(); } 327 '{' top_statement_list '}' 328 { $$ = zend_ast_create(ZEND_AST_NAMESPACE, $2, $5); } 329 | T_NAMESPACE { RESET_DOC_COMMENT(); } 330 '{' top_statement_list '}' 331 { $$ = zend_ast_create(ZEND_AST_NAMESPACE, NULL, $4); } 332 | T_USE mixed_group_use_declaration ';' { $$ = $2; } 333 | T_USE use_type group_use_declaration ';' { $$ = $3; $$->attr = $2; } 334 | T_USE use_declarations ';' { $$ = $2; $$->attr = ZEND_SYMBOL_CLASS; } 335 | T_USE use_type use_declarations ';' { $$ = $3; $$->attr = $2; } 336 | T_CONST const_list ';' { $$ = $2; } 337 ; 338 339 use_type: 340 T_FUNCTION { $$ = ZEND_SYMBOL_FUNCTION; } 341 | T_CONST { $$ = ZEND_SYMBOL_CONST; } 342 ; 343 344 group_use_declaration: 345 namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}' 346 { $$ = zend_ast_create(ZEND_AST_GROUP_USE, $1, $4); } 347 | T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}' 348 { $$ = zend_ast_create(ZEND_AST_GROUP_USE, $2, $5); } 349 ; 350 351 mixed_group_use_declaration: 352 namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}' 353 { $$ = zend_ast_create(ZEND_AST_GROUP_USE, $1, $4);} 354 | T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}' 355 { $$ = zend_ast_create(ZEND_AST_GROUP_USE, $2, $5); } 356 ; 357 358 possible_comma: 359 /* empty */ 360 | ',' 361 ; 362 363 inline_use_declarations: 364 inline_use_declarations ',' inline_use_declaration 365 { $$ = zend_ast_list_add($1, $3); } 366 | inline_use_declaration 367 { $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); } 368 ; 369 370 unprefixed_use_declarations: 371 unprefixed_use_declarations ',' unprefixed_use_declaration 372 { $$ = zend_ast_list_add($1, $3); } 373 | unprefixed_use_declaration 374 { $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); } 375 ; 376 377 use_declarations: 378 use_declarations ',' use_declaration 379 { $$ = zend_ast_list_add($1, $3); } 380 | use_declaration 381 { $$ = zend_ast_create_list(1, ZEND_AST_USE, $1); } 382 ; 383 384 inline_use_declaration: 385 unprefixed_use_declaration { $$ = $1; $$->attr = ZEND_SYMBOL_CLASS; } 386 | use_type unprefixed_use_declaration { $$ = $2; $$->attr = $1; } 387 ; 388 389 unprefixed_use_declaration: 390 namespace_name 391 { $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, NULL); } 392 | namespace_name T_AS T_STRING 393 { $$ = zend_ast_create(ZEND_AST_USE_ELEM, $1, $3); } 394 ; 395 396 use_declaration: 397 unprefixed_use_declaration { $$ = $1; } 398 | T_NS_SEPARATOR unprefixed_use_declaration { $$ = $2; } 399 ; 400 401 const_list: 402 const_list ',' const_decl { $$ = zend_ast_list_add($1, $3); } 403 | const_decl { $$ = zend_ast_create_list(1, ZEND_AST_CONST_DECL, $1); } 404 ; 405 406 inner_statement_list: 407 inner_statement_list inner_statement 408 { $$ = zend_ast_list_add($1, $2); } 409 | /* empty */ 410 { $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); } 411 ; 412 413 414 inner_statement: 415 statement { $$ = $1; } 416 | function_declaration_statement { $$ = $1; } 417 | class_declaration_statement { $$ = $1; } 418 | trait_declaration_statement { $$ = $1; } 419 | interface_declaration_statement { $$ = $1; } 420 | T_HALT_COMPILER '(' ')' ';' 421 { $$ = NULL; zend_throw_exception(zend_ce_compile_error, 422 "__HALT_COMPILER() can only be used from the outermost scope", 0); YYERROR; } 423 ; 424 425 426 statement: 427 '{' inner_statement_list '}' { $$ = $2; } 428 | if_stmt { $$ = $1; } 429 | alt_if_stmt { $$ = $1; } 430 | T_WHILE '(' expr ')' while_statement 431 { $$ = zend_ast_create(ZEND_AST_WHILE, $3, $5); } 432 | T_DO statement T_WHILE '(' expr ')' ';' 433 { $$ = zend_ast_create(ZEND_AST_DO_WHILE, $2, $5); } 434 | T_FOR '(' for_exprs ';' for_exprs ';' for_exprs ')' for_statement 435 { $$ = zend_ast_create(ZEND_AST_FOR, $3, $5, $7, $9); } 436 | T_SWITCH '(' expr ')' switch_case_list 437 { $$ = zend_ast_create(ZEND_AST_SWITCH, $3, $5); } 438 | T_BREAK optional_expr ';' { $$ = zend_ast_create(ZEND_AST_BREAK, $2); } 439 | T_CONTINUE optional_expr ';' { $$ = zend_ast_create(ZEND_AST_CONTINUE, $2); } 440 | T_RETURN optional_expr ';' { $$ = zend_ast_create(ZEND_AST_RETURN, $2); } 441 | T_GLOBAL global_var_list ';' { $$ = $2; } 442 | T_STATIC static_var_list ';' { $$ = $2; } 443 | T_ECHO echo_expr_list ';' { $$ = $2; } 444 | T_INLINE_HTML { $$ = zend_ast_create(ZEND_AST_ECHO, $1); } 445 | expr ';' { $$ = $1; } 446 | T_UNSET '(' unset_variables possible_comma ')' ';' { $$ = $3; } 447 | T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement 448 { $$ = zend_ast_create(ZEND_AST_FOREACH, $3, $5, NULL, $7); } 449 | T_FOREACH '(' expr T_AS foreach_variable T_DOUBLE_ARROW foreach_variable ')' 450 foreach_statement 451 { $$ = zend_ast_create(ZEND_AST_FOREACH, $3, $7, $5, $9); } 452 | T_DECLARE '(' const_list ')' 453 { if (!zend_handle_encoding_declaration($3)) { YYERROR; } } 454 declare_statement 455 { $$ = zend_ast_create(ZEND_AST_DECLARE, $3, $6); } 456 | ';' /* empty statement */ { $$ = NULL; } 457 | T_TRY '{' inner_statement_list '}' catch_list finally_statement 458 { $$ = zend_ast_create(ZEND_AST_TRY, $3, $5, $6); } 459 | T_THROW expr ';' { $$ = zend_ast_create(ZEND_AST_THROW, $2); } 460 | T_GOTO T_STRING ';' { $$ = zend_ast_create(ZEND_AST_GOTO, $2); } 461 | T_STRING ':' { $$ = zend_ast_create(ZEND_AST_LABEL, $1); } 462 ; 463 464 catch_list: 465 /* empty */ 466 { $$ = zend_ast_create_list(0, ZEND_AST_CATCH_LIST); } 467 | catch_list T_CATCH '(' catch_name_list T_VARIABLE ')' '{' inner_statement_list '}' 468 { $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_CATCH, $4, $5, $8)); } 469 ; 470 471 catch_name_list: 472 name { $$ = zend_ast_create_list(1, ZEND_AST_NAME_LIST, $1); } 473 | catch_name_list '|' name { $$ = zend_ast_list_add($1, $3); } 474 ; 475 476 finally_statement: 477 /* empty */ { $$ = NULL; } 478 | T_FINALLY '{' inner_statement_list '}' { $$ = $3; } 479 ; 480 481 unset_variables: 482 unset_variable { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); } 483 | unset_variables ',' unset_variable { $$ = zend_ast_list_add($1, $3); } 484 ; 485 486 unset_variable: 487 variable { $$ = zend_ast_create(ZEND_AST_UNSET, $1); } 488 ; 489 490 function_declaration_statement: 491 function returns_ref T_STRING backup_doc_comment '(' parameter_list ')' return_type 492 backup_fn_flags '{' inner_statement_list '}' backup_fn_flags 493 { $$ = zend_ast_create_decl(ZEND_AST_FUNC_DECL, $2 | $13, $1, $4, 494 zend_ast_get_str($3), $6, NULL, $11, $8); CG(extra_fn_flags) = $9; } 495 ; 496 497 is_reference: 498 /* empty */ { $$ = 0; } 499 | '&' { $$ = ZEND_PARAM_REF; } 500 ; 501 502 is_variadic: 503 /* empty */ { $$ = 0; } 504 | T_ELLIPSIS { $$ = ZEND_PARAM_VARIADIC; } 505 ; 506 507 class_declaration_statement: 508 class_modifiers T_CLASS { $<num>$ = CG(zend_lineno); } 509 T_STRING extends_from implements_list backup_doc_comment '{' class_statement_list '}' 510 { $$ = zend_ast_create_decl(ZEND_AST_CLASS, $1, $<num>3, $7, zend_ast_get_str($4), $5, $6, $9, NULL); } 511 | T_CLASS { $<num>$ = CG(zend_lineno); } 512 T_STRING extends_from implements_list backup_doc_comment '{' class_statement_list '}' 513 { $$ = zend_ast_create_decl(ZEND_AST_CLASS, 0, $<num>2, $6, zend_ast_get_str($3), $4, $5, $8, NULL); } 514 ; 515 516 class_modifiers: 517 class_modifier { $$ = $1; } 518 | class_modifiers class_modifier 519 { $$ = zend_add_class_modifier($1, $2); if (!$$) { YYERROR; } } 520 ; 521 522 class_modifier: 523 T_ABSTRACT { $$ = ZEND_ACC_EXPLICIT_ABSTRACT_CLASS; } 524 | T_FINAL { $$ = ZEND_ACC_FINAL; } 525 ; 526 527 trait_declaration_statement: 528 T_TRAIT { $<num>$ = CG(zend_lineno); } 529 T_STRING backup_doc_comment '{' class_statement_list '}' 530 { $$ = zend_ast_create_decl(ZEND_AST_CLASS, ZEND_ACC_TRAIT, $<num>2, $4, zend_ast_get_str($3), NULL, NULL, $6, NULL); } 531 ; 532 533 interface_declaration_statement: 534 T_INTERFACE { $<num>$ = CG(zend_lineno); } 535 T_STRING interface_extends_list backup_doc_comment '{' class_statement_list '}' 536 { $$ = zend_ast_create_decl(ZEND_AST_CLASS, ZEND_ACC_INTERFACE, $<num>2, $5, zend_ast_get_str($3), NULL, $4, $7, NULL); } 537 ; 538 539 extends_from: 540 /* empty */ { $$ = NULL; } 541 | T_EXTENDS name { $$ = $2; } 542 ; 543 544 interface_extends_list: 545 /* empty */ { $$ = NULL; } 546 | T_EXTENDS name_list { $$ = $2; } 547 ; 548 549 implements_list: 550 /* empty */ { $$ = NULL; } 551 | T_IMPLEMENTS name_list { $$ = $2; } 552 ; 553 554 foreach_variable: 555 variable { $$ = $1; } 556 | '&' variable { $$ = zend_ast_create(ZEND_AST_REF, $2); } 557 | T_LIST '(' array_pair_list ')' { $$ = $3; $$->attr = ZEND_ARRAY_SYNTAX_LIST; } 558 | '[' array_pair_list ']' { $$ = $2; $$->attr = ZEND_ARRAY_SYNTAX_SHORT; } 559 ; 560 561 for_statement: 562 statement { $$ = $1; } 563 | ':' inner_statement_list T_ENDFOR ';' { $$ = $2; } 564 ; 565 566 foreach_statement: 567 statement { $$ = $1; } 568 | ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; } 569 ; 570 571 declare_statement: 572 statement { $$ = $1; } 573 | ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; } 574 ; 575 576 switch_case_list: 577 '{' case_list '}' { $$ = $2; } 578 | '{' ';' case_list '}' { $$ = $3; } 579 | ':' case_list T_ENDSWITCH ';' { $$ = $2; } 580 | ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; } 581 ; 582 583 case_list: 584 /* empty */ { $$ = zend_ast_create_list(0, ZEND_AST_SWITCH_LIST); } 585 | case_list T_CASE expr case_separator inner_statement_list 586 { $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_SWITCH_CASE, $3, $5)); } 587 | case_list T_DEFAULT case_separator inner_statement_list 588 { $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_SWITCH_CASE, NULL, $4)); } 589 ; 590 591 case_separator: 592 ':' 593 | ';' 594 ; 595 596 597 while_statement: 598 statement { $$ = $1; } 599 | ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; } 600 ; 601 602 603 if_stmt_without_else: 604 T_IF '(' expr ')' statement 605 { $$ = zend_ast_create_list(1, ZEND_AST_IF, 606 zend_ast_create(ZEND_AST_IF_ELEM, $3, $5)); } 607 | if_stmt_without_else T_ELSEIF '(' expr ')' statement 608 { $$ = zend_ast_list_add($1, 609 zend_ast_create(ZEND_AST_IF_ELEM, $4, $6)); } 610 ; 611 612 if_stmt: 613 if_stmt_without_else %prec T_NOELSE { $$ = $1; } 614 | if_stmt_without_else T_ELSE statement 615 { $$ = zend_ast_list_add($1, zend_ast_create(ZEND_AST_IF_ELEM, NULL, $3)); } 616 ; 617 618 alt_if_stmt_without_else: 619 T_IF '(' expr ')' ':' inner_statement_list 620 { $$ = zend_ast_create_list(1, ZEND_AST_IF, 621 zend_ast_create(ZEND_AST_IF_ELEM, $3, $6)); } 622 | alt_if_stmt_without_else T_ELSEIF '(' expr ')' ':' inner_statement_list 623 { $$ = zend_ast_list_add($1, 624 zend_ast_create(ZEND_AST_IF_ELEM, $4, $7)); } 625 ; 626 627 alt_if_stmt: 628 alt_if_stmt_without_else T_ENDIF ';' { $$ = $1; } 629 | alt_if_stmt_without_else T_ELSE ':' inner_statement_list T_ENDIF ';' 630 { $$ = zend_ast_list_add($1, 631 zend_ast_create(ZEND_AST_IF_ELEM, NULL, $4)); } 632 ; 633 634 parameter_list: 635 non_empty_parameter_list { $$ = $1; } 636 | /* empty */ { $$ = zend_ast_create_list(0, ZEND_AST_PARAM_LIST); } 637 ; 638 639 640 non_empty_parameter_list: 641 parameter 642 { $$ = zend_ast_create_list(1, ZEND_AST_PARAM_LIST, $1); } 643 | non_empty_parameter_list ',' parameter 644 { $$ = zend_ast_list_add($1, $3); } 645 ; 646 647 parameter: 648 optional_type is_reference is_variadic T_VARIABLE 649 { $$ = zend_ast_create_ex(ZEND_AST_PARAM, $2 | $3, $1, $4, NULL); } 650 | optional_type is_reference is_variadic T_VARIABLE '=' expr 651 { $$ = zend_ast_create_ex(ZEND_AST_PARAM, $2 | $3, $1, $4, $6); } 652 ; 653 654 655 optional_type: 656 /* empty */ { $$ = NULL; } 657 | type_expr { $$ = $1; } 658 ; 659 660 type_expr: 661 type { $$ = $1; } 662 | '?' type { $$ = $2; $$->attr |= ZEND_TYPE_NULLABLE; } 663 ; 664 665 type: 666 T_ARRAY { $$ = zend_ast_create_ex(ZEND_AST_TYPE, IS_ARRAY); } 667 | T_CALLABLE { $$ = zend_ast_create_ex(ZEND_AST_TYPE, IS_CALLABLE); } 668 | name { $$ = $1; } 669 ; 670 671 return_type: 672 /* empty */ { $$ = NULL; } 673 | ':' type_expr { $$ = $2; } 674 ; 675 676 argument_list: 677 '(' ')' { $$ = zend_ast_create_list(0, ZEND_AST_ARG_LIST); } 678 | '(' non_empty_argument_list possible_comma ')' { $$ = $2; } 679 ; 680 681 non_empty_argument_list: 682 argument 683 { $$ = zend_ast_create_list(1, ZEND_AST_ARG_LIST, $1); } 684 | non_empty_argument_list ',' argument 685 { $$ = zend_ast_list_add($1, $3); } 686 ; 687 688 argument: 689 expr { $$ = $1; } 690 | T_ELLIPSIS expr { $$ = zend_ast_create(ZEND_AST_UNPACK, $2); } 691 ; 692 693 global_var_list: 694 global_var_list ',' global_var { $$ = zend_ast_list_add($1, $3); } 695 | global_var { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); } 696 ; 697 698 global_var: 699 simple_variable 700 { $$ = zend_ast_create(ZEND_AST_GLOBAL, zend_ast_create(ZEND_AST_VAR, $1)); } 701 ; 702 703 704 static_var_list: 705 static_var_list ',' static_var { $$ = zend_ast_list_add($1, $3); } 706 | static_var { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); } 707 ; 708 709 static_var: 710 T_VARIABLE { $$ = zend_ast_create(ZEND_AST_STATIC, $1, NULL); } 711 | T_VARIABLE '=' expr { $$ = zend_ast_create(ZEND_AST_STATIC, $1, $3); } 712 ; 713 714 715 class_statement_list: 716 class_statement_list class_statement 717 { $$ = zend_ast_list_add($1, $2); } 718 | /* empty */ 719 { $$ = zend_ast_create_list(0, ZEND_AST_STMT_LIST); } 720 ; 721 722 723 class_statement: 724 variable_modifiers optional_type property_list ';' 725 { $$ = zend_ast_create(ZEND_AST_PROP_GROUP, $2, $3); 726 $$->attr = $1; } 727 | method_modifiers T_CONST class_const_list ';' 728 { $$ = $3; $$->attr = $1; } 729 | T_USE name_list trait_adaptations 730 { $$ = zend_ast_create(ZEND_AST_USE_TRAIT, $2, $3); } 731 | method_modifiers function returns_ref identifier backup_doc_comment '(' parameter_list ')' 732 return_type backup_fn_flags method_body backup_fn_flags 733 { $$ = zend_ast_create_decl(ZEND_AST_METHOD, $3 | $1 | $12, $2, $5, 734 zend_ast_get_str($4), $7, NULL, $11, $9); CG(extra_fn_flags) = $10; } 735 ; 736 737 name_list: 738 name { $$ = zend_ast_create_list(1, ZEND_AST_NAME_LIST, $1); } 739 | name_list ',' name { $$ = zend_ast_list_add($1, $3); } 740 ; 741 742 trait_adaptations: 743 ';' { $$ = NULL; } 744 | '{' '}' { $$ = NULL; } 745 | '{' trait_adaptation_list '}' { $$ = $2; } 746 ; 747 748 trait_adaptation_list: 749 trait_adaptation 750 { $$ = zend_ast_create_list(1, ZEND_AST_TRAIT_ADAPTATIONS, $1); } 751 | trait_adaptation_list trait_adaptation 752 { $$ = zend_ast_list_add($1, $2); } 753 ; 754 755 trait_adaptation: 756 trait_precedence ';' { $$ = $1; } 757 | trait_alias ';' { $$ = $1; } 758 ; 759 760 trait_precedence: 761 absolute_trait_method_reference T_INSTEADOF name_list 762 { $$ = zend_ast_create(ZEND_AST_TRAIT_PRECEDENCE, $1, $3); } 763 ; 764 765 trait_alias: 766 trait_method_reference T_AS T_STRING 767 { $$ = zend_ast_create(ZEND_AST_TRAIT_ALIAS, $1, $3); } 768 | trait_method_reference T_AS reserved_non_modifiers 769 { zval zv; zend_lex_tstring(&zv); $$ = zend_ast_create(ZEND_AST_TRAIT_ALIAS, $1, zend_ast_create_zval(&zv)); } 770 | trait_method_reference T_AS member_modifier identifier 771 { $$ = zend_ast_create_ex(ZEND_AST_TRAIT_ALIAS, $3, $1, $4); } 772 | trait_method_reference T_AS member_modifier 773 { $$ = zend_ast_create_ex(ZEND_AST_TRAIT_ALIAS, $3, $1, NULL); } 774 ; 775 776 trait_method_reference: 777 identifier 778 { $$ = zend_ast_create(ZEND_AST_METHOD_REFERENCE, NULL, $1); } 779 | absolute_trait_method_reference { $$ = $1; } 780 ; 781 782 absolute_trait_method_reference: 783 name T_PAAMAYIM_NEKUDOTAYIM identifier 784 { $$ = zend_ast_create(ZEND_AST_METHOD_REFERENCE, $1, $3); } 785 ; 786 787 method_body: 788 ';' /* abstract method */ { $$ = NULL; } 789 | '{' inner_statement_list '}' { $$ = $2; } 790 ; 791 792 variable_modifiers: 793 non_empty_member_modifiers { $$ = $1; } 794 | T_VAR { $$ = ZEND_ACC_PUBLIC; } 795 ; 796 797 method_modifiers: 798 /* empty */ { $$ = ZEND_ACC_PUBLIC; } 799 | non_empty_member_modifiers 800 { $$ = $1; if (!($$ & ZEND_ACC_PPP_MASK)) { $$ |= ZEND_ACC_PUBLIC; } } 801 ; 802 803 non_empty_member_modifiers: 804 member_modifier { $$ = $1; } 805 | non_empty_member_modifiers member_modifier 806 { $$ = zend_add_member_modifier($1, $2); if (!$$) { YYERROR; } } 807 ; 808 809 member_modifier: 810 T_PUBLIC { $$ = ZEND_ACC_PUBLIC; } 811 | T_PROTECTED { $$ = ZEND_ACC_PROTECTED; } 812 | T_PRIVATE { $$ = ZEND_ACC_PRIVATE; } 813 | T_STATIC { $$ = ZEND_ACC_STATIC; } 814 | T_ABSTRACT { $$ = ZEND_ACC_ABSTRACT; } 815 | T_FINAL { $$ = ZEND_ACC_FINAL; } 816 ; 817 818 property_list: 819 property_list ',' property { $$ = zend_ast_list_add($1, $3); } 820 | property { $$ = zend_ast_create_list(1, ZEND_AST_PROP_DECL, $1); } 821 ; 822 823 property: 824 T_VARIABLE backup_doc_comment 825 { $$ = zend_ast_create(ZEND_AST_PROP_ELEM, $1, NULL, ($2 ? zend_ast_create_zval_from_str($2) : NULL)); } 826 | T_VARIABLE '=' expr backup_doc_comment 827 { $$ = zend_ast_create(ZEND_AST_PROP_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); } 828 ; 829 830 class_const_list: 831 class_const_list ',' class_const_decl { $$ = zend_ast_list_add($1, $3); } 832 | class_const_decl { $$ = zend_ast_create_list(1, ZEND_AST_CLASS_CONST_DECL, $1); } 833 ; 834 835 class_const_decl: 836 identifier '=' expr backup_doc_comment { $$ = zend_ast_create(ZEND_AST_CONST_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); } 837 ; 838 839 const_decl: 840 T_STRING '=' expr backup_doc_comment { $$ = zend_ast_create(ZEND_AST_CONST_ELEM, $1, $3, ($4 ? zend_ast_create_zval_from_str($4) : NULL)); } 841 ; 842 843 echo_expr_list: 844 echo_expr_list ',' echo_expr { $$ = zend_ast_list_add($1, $3); } 845 | echo_expr { $$ = zend_ast_create_list(1, ZEND_AST_STMT_LIST, $1); } 846 ; 847 echo_expr: 848 expr { $$ = zend_ast_create(ZEND_AST_ECHO, $1); } 849 ; 850 851 for_exprs: 852 /* empty */ { $$ = NULL; } 853 | non_empty_for_exprs { $$ = $1; } 854 ; 855 856 non_empty_for_exprs: 857 non_empty_for_exprs ',' expr { $$ = zend_ast_list_add($1, $3); } 858 | expr { $$ = zend_ast_create_list(1, ZEND_AST_EXPR_LIST, $1); } 859 ; 860 861 anonymous_class: 862 T_CLASS { $<num>$ = CG(zend_lineno); } ctor_arguments 863 extends_from implements_list backup_doc_comment '{' class_statement_list '}' { 864 zend_ast *decl = zend_ast_create_decl( 865 ZEND_AST_CLASS, ZEND_ACC_ANON_CLASS, $<num>2, $6, NULL, 866 $4, $5, $8, NULL); 867 $$ = zend_ast_create(ZEND_AST_NEW, decl, $3); 868 } 869 ; 870 871 new_expr: 872 T_NEW class_name_reference ctor_arguments 873 { $$ = zend_ast_create(ZEND_AST_NEW, $2, $3); } 874 | T_NEW anonymous_class 875 { $$ = $2; } 876 ; 877 878 expr: 879 variable 880 { $$ = $1; } 881 | T_LIST '(' array_pair_list ')' '=' expr 882 { $3->attr = ZEND_ARRAY_SYNTAX_LIST; $$ = zend_ast_create(ZEND_AST_ASSIGN, $3, $6); } 883 | '[' array_pair_list ']' '=' expr 884 { $2->attr = ZEND_ARRAY_SYNTAX_SHORT; $$ = zend_ast_create(ZEND_AST_ASSIGN, $2, $5); } 885 | variable '=' expr 886 { $$ = zend_ast_create(ZEND_AST_ASSIGN, $1, $3); } 887 | variable '=' '&' variable 888 { $$ = zend_ast_create(ZEND_AST_ASSIGN_REF, $1, $4); } 889 | T_CLONE expr { $$ = zend_ast_create(ZEND_AST_CLONE, $2); } 890 | variable T_PLUS_EQUAL expr 891 { $$ = zend_ast_create_assign_op(ZEND_ADD, $1, $3); } 892 | variable T_MINUS_EQUAL expr 893 { $$ = zend_ast_create_assign_op(ZEND_SUB, $1, $3); } 894 | variable T_MUL_EQUAL expr 895 { $$ = zend_ast_create_assign_op(ZEND_MUL, $1, $3); } 896 | variable T_POW_EQUAL expr 897 { $$ = zend_ast_create_assign_op(ZEND_POW, $1, $3); } 898 | variable T_DIV_EQUAL expr 899 { $$ = zend_ast_create_assign_op(ZEND_DIV, $1, $3); } 900 | variable T_CONCAT_EQUAL expr 901 { $$ = zend_ast_create_assign_op(ZEND_CONCAT, $1, $3); } 902 | variable T_MOD_EQUAL expr 903 { $$ = zend_ast_create_assign_op(ZEND_MOD, $1, $3); } 904 | variable T_AND_EQUAL expr 905 { $$ = zend_ast_create_assign_op(ZEND_BW_AND, $1, $3); } 906 | variable T_OR_EQUAL expr 907 { $$ = zend_ast_create_assign_op(ZEND_BW_OR, $1, $3); } 908 | variable T_XOR_EQUAL expr 909 { $$ = zend_ast_create_assign_op(ZEND_BW_XOR, $1, $3); } 910 | variable T_SL_EQUAL expr 911 { $$ = zend_ast_create_assign_op(ZEND_SL, $1, $3); } 912 | variable T_SR_EQUAL expr 913 { $$ = zend_ast_create_assign_op(ZEND_SR, $1, $3); } 914 | variable T_COALESCE_EQUAL expr 915 { $$ = zend_ast_create(ZEND_AST_ASSIGN_COALESCE, $1, $3); } 916 | variable T_INC { $$ = zend_ast_create(ZEND_AST_POST_INC, $1); } 917 | T_INC variable { $$ = zend_ast_create(ZEND_AST_PRE_INC, $2); } 918 | variable T_DEC { $$ = zend_ast_create(ZEND_AST_POST_DEC, $1); } 919 | T_DEC variable { $$ = zend_ast_create(ZEND_AST_PRE_DEC, $2); } 920 | expr T_BOOLEAN_OR expr 921 { $$ = zend_ast_create(ZEND_AST_OR, $1, $3); } 922 | expr T_BOOLEAN_AND expr 923 { $$ = zend_ast_create(ZEND_AST_AND, $1, $3); } 924 | expr T_LOGICAL_OR expr 925 { $$ = zend_ast_create(ZEND_AST_OR, $1, $3); } 926 | expr T_LOGICAL_AND expr 927 { $$ = zend_ast_create(ZEND_AST_AND, $1, $3); } 928 | expr T_LOGICAL_XOR expr 929 { $$ = zend_ast_create_binary_op(ZEND_BOOL_XOR, $1, $3); } 930 | expr '|' expr { $$ = zend_ast_create_binary_op(ZEND_BW_OR, $1, $3); } 931 | expr '&' expr { $$ = zend_ast_create_binary_op(ZEND_BW_AND, $1, $3); } 932 | expr '^' expr { $$ = zend_ast_create_binary_op(ZEND_BW_XOR, $1, $3); } 933 | expr '.' expr { $$ = zend_ast_create_binary_op(ZEND_CONCAT, $1, $3); } 934 | expr '+' expr { $$ = zend_ast_create_binary_op(ZEND_ADD, $1, $3); } 935 | expr '-' expr { $$ = zend_ast_create_binary_op(ZEND_SUB, $1, $3); } 936 | expr '*' expr { $$ = zend_ast_create_binary_op(ZEND_MUL, $1, $3); } 937 | expr T_POW expr { $$ = zend_ast_create_binary_op(ZEND_POW, $1, $3); } 938 | expr '/' expr { $$ = zend_ast_create_binary_op(ZEND_DIV, $1, $3); } 939 | expr '%' expr { $$ = zend_ast_create_binary_op(ZEND_MOD, $1, $3); } 940 | expr T_SL expr { $$ = zend_ast_create_binary_op(ZEND_SL, $1, $3); } 941 | expr T_SR expr { $$ = zend_ast_create_binary_op(ZEND_SR, $1, $3); } 942 | '+' expr %prec '~' { $$ = zend_ast_create(ZEND_AST_UNARY_PLUS, $2); } 943 | '-' expr %prec '~' { $$ = zend_ast_create(ZEND_AST_UNARY_MINUS, $2); } 944 | '!' expr { $$ = zend_ast_create_ex(ZEND_AST_UNARY_OP, ZEND_BOOL_NOT, $2); } 945 | '~' expr { $$ = zend_ast_create_ex(ZEND_AST_UNARY_OP, ZEND_BW_NOT, $2); } 946 | expr T_IS_IDENTICAL expr 947 { $$ = zend_ast_create_binary_op(ZEND_IS_IDENTICAL, $1, $3); } 948 | expr T_IS_NOT_IDENTICAL expr 949 { $$ = zend_ast_create_binary_op(ZEND_IS_NOT_IDENTICAL, $1, $3); } 950 | expr T_IS_EQUAL expr 951 { $$ = zend_ast_create_binary_op(ZEND_IS_EQUAL, $1, $3); } 952 | expr T_IS_NOT_EQUAL expr 953 { $$ = zend_ast_create_binary_op(ZEND_IS_NOT_EQUAL, $1, $3); } 954 | expr '<' expr 955 { $$ = zend_ast_create_binary_op(ZEND_IS_SMALLER, $1, $3); } 956 | expr T_IS_SMALLER_OR_EQUAL expr 957 { $$ = zend_ast_create_binary_op(ZEND_IS_SMALLER_OR_EQUAL, $1, $3); } 958 | expr '>' expr 959 { $$ = zend_ast_create(ZEND_AST_GREATER, $1, $3); } 960 | expr T_IS_GREATER_OR_EQUAL expr 961 { $$ = zend_ast_create(ZEND_AST_GREATER_EQUAL, $1, $3); } 962 | expr T_SPACESHIP expr 963 { $$ = zend_ast_create_binary_op(ZEND_SPACESHIP, $1, $3); } 964 | expr T_INSTANCEOF class_name_reference 965 { $$ = zend_ast_create(ZEND_AST_INSTANCEOF, $1, $3); } 966 | '(' expr ')' { 967 $$ = $2; 968 if ($$->kind == ZEND_AST_CONDITIONAL) $$->attr = ZEND_PARENTHESIZED_CONDITIONAL; 969 if ($$->kind == ZEND_AST_BINARY_OP && $$->attr == ZEND_CONCAT) $$->attr = ZEND_PARENTHESIZED_CONCAT; 970 } 971 | new_expr { $$ = $1; } 972 | expr '?' expr ':' expr 973 { $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, $3, $5); } 974 | expr '?' ':' expr 975 { $$ = zend_ast_create(ZEND_AST_CONDITIONAL, $1, NULL, $4); } 976 | expr T_COALESCE expr 977 { $$ = zend_ast_create(ZEND_AST_COALESCE, $1, $3); } 978 | internal_functions_in_yacc { $$ = $1; } 979 | T_INT_CAST expr { $$ = zend_ast_create_cast(IS_LONG, $2); } 980 | T_DOUBLE_CAST expr { $$ = zend_ast_create_cast(IS_DOUBLE, $2); } 981 | T_STRING_CAST expr { $$ = zend_ast_create_cast(IS_STRING, $2); } 982 | T_ARRAY_CAST expr { $$ = zend_ast_create_cast(IS_ARRAY, $2); } 983 | T_OBJECT_CAST expr { $$ = zend_ast_create_cast(IS_OBJECT, $2); } 984 | T_BOOL_CAST expr { $$ = zend_ast_create_cast(_IS_BOOL, $2); } 985 | T_UNSET_CAST expr { $$ = zend_ast_create_cast(IS_NULL, $2); } 986 | T_EXIT exit_expr { $$ = zend_ast_create(ZEND_AST_EXIT, $2); } 987 | '@' expr { $$ = zend_ast_create(ZEND_AST_SILENCE, $2); } 988 | scalar { $$ = $1; } 989 | '`' backticks_expr '`' { $$ = zend_ast_create(ZEND_AST_SHELL_EXEC, $2); } 990 | T_PRINT expr { $$ = zend_ast_create(ZEND_AST_PRINT, $2); } 991 | T_YIELD { $$ = zend_ast_create(ZEND_AST_YIELD, NULL, NULL); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; } 992 | T_YIELD expr { $$ = zend_ast_create(ZEND_AST_YIELD, $2, NULL); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; } 993 | T_YIELD expr T_DOUBLE_ARROW expr { $$ = zend_ast_create(ZEND_AST_YIELD, $4, $2); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; } 994 | T_YIELD_FROM expr { $$ = zend_ast_create(ZEND_AST_YIELD_FROM, $2); CG(extra_fn_flags) |= ZEND_ACC_GENERATOR; } 995 | inline_function { $$ = $1; } 996 | T_STATIC inline_function { $$ = $2; ((zend_ast_decl *) $$)->flags |= ZEND_ACC_STATIC; } 997 ; 998 999 1000 inline_function: 1001 function returns_ref backup_doc_comment '(' parameter_list ')' lexical_vars return_type 1002 backup_fn_flags '{' inner_statement_list '}' backup_fn_flags 1003 { $$ = zend_ast_create_decl(ZEND_AST_CLOSURE, $2 | $13, $1, $3, 1004 zend_string_init("{closure}", sizeof("{closure}") - 1, 0), 1005 $5, $7, $11, $8); CG(extra_fn_flags) = $9; } 1006 | fn returns_ref '(' parameter_list ')' return_type backup_doc_comment T_DOUBLE_ARROW backup_fn_flags backup_lex_pos expr backup_fn_flags 1007 { $$ = zend_ast_create_decl(ZEND_AST_ARROW_FUNC, $2 | $12, $1, $7, 1008 zend_string_init("{closure}", sizeof("{closure}") - 1, 0), $4, NULL, 1009 zend_ast_create(ZEND_AST_RETURN, $11), $6); 1010 ((zend_ast_decl *) $$)->lex_pos = $10; 1011 CG(extra_fn_flags) = $9; } 1012 ; 1013 1014 fn: 1015 T_FN { $$ = CG(zend_lineno); } 1016 ; 1017 1018 function: 1019 T_FUNCTION { $$ = CG(zend_lineno); } 1020 ; 1021 1022 backup_doc_comment: 1023 /* empty */ { $$ = CG(doc_comment); CG(doc_comment) = NULL; } 1024 ; 1025 1026 backup_fn_flags: 1027 %prec PREC_ARROW_FUNCTION /* empty */ { $$ = CG(extra_fn_flags); CG(extra_fn_flags) = 0; } 1028 ; 1029 1030 backup_lex_pos: 1031 /* empty */ { $$ = LANG_SCNG(yy_text); } 1032 ; 1033 1034 returns_ref: 1035 /* empty */ { $$ = 0; } 1036 | '&' { $$ = ZEND_ACC_RETURN_REFERENCE; } 1037 ; 1038 1039 lexical_vars: 1040 /* empty */ { $$ = NULL; } 1041 | T_USE '(' lexical_var_list ')' { $$ = $3; } 1042 ; 1043 1044 lexical_var_list: 1045 lexical_var_list ',' lexical_var { $$ = zend_ast_list_add($1, $3); } 1046 | lexical_var { $$ = zend_ast_create_list(1, ZEND_AST_CLOSURE_USES, $1); } 1047 ; 1048 1049 lexical_var: 1050 T_VARIABLE { $$ = $1; } 1051 | '&' T_VARIABLE { $$ = $2; $$->attr = ZEND_BIND_REF; } 1052 ; 1053 1054 function_call: 1055 name argument_list 1056 { $$ = zend_ast_create(ZEND_AST_CALL, $1, $2); } 1057 | class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list 1058 { $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); } 1059 | variable_class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list 1060 { $$ = zend_ast_create(ZEND_AST_STATIC_CALL, $1, $3, $4); } 1061 | callable_expr argument_list 1062 { $$ = zend_ast_create(ZEND_AST_CALL, $1, $2); } 1063 ; 1064 1065 class_name: 1066 T_STATIC 1067 { zval zv; ZVAL_INTERNED_STR(&zv, ZSTR_KNOWN(ZEND_STR_STATIC)); 1068 $$ = zend_ast_create_zval_ex(&zv, ZEND_NAME_NOT_FQ); } 1069 | name { $$ = $1; } 1070 ; 1071 1072 class_name_reference: 1073 class_name { $$ = $1; } 1074 | new_variable { $$ = $1; } 1075 ; 1076 1077 exit_expr: 1078 /* empty */ { $$ = NULL; } 1079 | '(' optional_expr ')' { $$ = $2; } 1080 ; 1081 1082 backticks_expr: 1083 /* empty */ 1084 { $$ = zend_ast_create_zval_from_str(ZSTR_EMPTY_ALLOC()); } 1085 | T_ENCAPSED_AND_WHITESPACE { $$ = $1; } 1086 | encaps_list { $$ = $1; } 1087 ; 1088 1089 1090 ctor_arguments: 1091 /* empty */ { $$ = zend_ast_create_list(0, ZEND_AST_ARG_LIST); } 1092 | argument_list { $$ = $1; } 1093 ; 1094 1095 1096 dereferencable_scalar: 1097 T_ARRAY '(' array_pair_list ')' { $$ = $3; $$->attr = ZEND_ARRAY_SYNTAX_LONG; } 1098 | '[' array_pair_list ']' { $$ = $2; $$->attr = ZEND_ARRAY_SYNTAX_SHORT; } 1099 | T_CONSTANT_ENCAPSED_STRING { $$ = $1; } 1100 ; 1101 1102 scalar: 1103 T_LNUMBER { $$ = $1; } 1104 | T_DNUMBER { $$ = $1; } 1105 | T_LINE { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_LINE); } 1106 | T_FILE { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_FILE); } 1107 | T_DIR { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_DIR); } 1108 | T_TRAIT_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_TRAIT_C); } 1109 | T_METHOD_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_METHOD_C); } 1110 | T_FUNC_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_FUNC_C); } 1111 | T_NS_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_NS_C); } 1112 | T_CLASS_C { $$ = zend_ast_create_ex(ZEND_AST_MAGIC_CONST, T_CLASS_C); } 1113 | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC { $$ = $2; } 1114 | T_START_HEREDOC T_END_HEREDOC 1115 { $$ = zend_ast_create_zval_from_str(ZSTR_EMPTY_ALLOC()); } 1116 | '"' encaps_list '"' { $$ = $2; } 1117 | T_START_HEREDOC encaps_list T_END_HEREDOC { $$ = $2; } 1118 | dereferencable_scalar { $$ = $1; } 1119 | constant { $$ = $1; } 1120 ; 1121 1122 constant: 1123 name { $$ = zend_ast_create(ZEND_AST_CONST, $1); } 1124 | class_name T_PAAMAYIM_NEKUDOTAYIM identifier 1125 { $$ = zend_ast_create_class_const_or_name($1, $3); } 1126 | variable_class_name T_PAAMAYIM_NEKUDOTAYIM identifier 1127 { $$ = zend_ast_create_class_const_or_name($1, $3); } 1128 ; 1129 1130 optional_expr: 1131 /* empty */ { $$ = NULL; } 1132 | expr { $$ = $1; } 1133 ; 1134 1135 variable_class_name: 1136 dereferencable { $$ = $1; } 1137 ; 1138 1139 dereferencable: 1140 variable { $$ = $1; } 1141 | '(' expr ')' { $$ = $2; } 1142 | dereferencable_scalar { $$ = $1; } 1143 ; 1144 1145 callable_expr: 1146 callable_variable { $$ = $1; } 1147 | '(' expr ')' { $$ = $2; } 1148 | dereferencable_scalar { $$ = $1; } 1149 ; 1150 1151 callable_variable: 1152 simple_variable 1153 { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1154 | dereferencable '[' optional_expr ']' 1155 { $$ = zend_ast_create(ZEND_AST_DIM, $1, $3); } 1156 | constant '[' optional_expr ']' 1157 { $$ = zend_ast_create(ZEND_AST_DIM, $1, $3); } 1158 | dereferencable '{' expr '}' 1159 { $$ = zend_ast_create_ex(ZEND_AST_DIM, ZEND_DIM_ALTERNATIVE_SYNTAX, $1, $3); } 1160 | dereferencable T_OBJECT_OPERATOR property_name argument_list 1161 { $$ = zend_ast_create(ZEND_AST_METHOD_CALL, $1, $3, $4); } 1162 | function_call { $$ = $1; } 1163 ; 1164 1165 variable: 1166 callable_variable 1167 { $$ = $1; } 1168 | static_member 1169 { $$ = $1; } 1170 | dereferencable T_OBJECT_OPERATOR property_name 1171 { $$ = zend_ast_create(ZEND_AST_PROP, $1, $3); } 1172 ; 1173 1174 simple_variable: 1175 T_VARIABLE { $$ = $1; } 1176 | '$' '{' expr '}' { $$ = $3; } 1177 | '$' simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $2); } 1178 ; 1179 1180 static_member: 1181 class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable 1182 { $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); } 1183 | variable_class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable 1184 { $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); } 1185 ; 1186 1187 new_variable: 1188 simple_variable 1189 { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1190 | new_variable '[' optional_expr ']' 1191 { $$ = zend_ast_create(ZEND_AST_DIM, $1, $3); } 1192 | new_variable '{' expr '}' 1193 { $$ = zend_ast_create_ex(ZEND_AST_DIM, ZEND_DIM_ALTERNATIVE_SYNTAX, $1, $3); } 1194 | new_variable T_OBJECT_OPERATOR property_name 1195 { $$ = zend_ast_create(ZEND_AST_PROP, $1, $3); } 1196 | class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable 1197 { $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); } 1198 | new_variable T_PAAMAYIM_NEKUDOTAYIM simple_variable 1199 { $$ = zend_ast_create(ZEND_AST_STATIC_PROP, $1, $3); } 1200 ; 1201 1202 member_name: 1203 identifier { $$ = $1; } 1204 | '{' expr '}' { $$ = $2; } 1205 | simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1206 ; 1207 1208 property_name: 1209 T_STRING { $$ = $1; } 1210 | '{' expr '}' { $$ = $2; } 1211 | simple_variable { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1212 ; 1213 1214 array_pair_list: 1215 non_empty_array_pair_list 1216 { /* allow single trailing comma */ $$ = zend_ast_list_rtrim($1); } 1217 ; 1218 1219 possible_array_pair: 1220 /* empty */ { $$ = NULL; } 1221 | array_pair { $$ = $1; } 1222 ; 1223 1224 non_empty_array_pair_list: 1225 non_empty_array_pair_list ',' possible_array_pair 1226 { $$ = zend_ast_list_add($1, $3); } 1227 | possible_array_pair 1228 { $$ = zend_ast_create_list(1, ZEND_AST_ARRAY, $1); } 1229 ; 1230 1231 array_pair: 1232 expr T_DOUBLE_ARROW expr 1233 { $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $3, $1); } 1234 | expr 1235 { $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $1, NULL); } 1236 | expr T_DOUBLE_ARROW '&' variable 1237 { $$ = zend_ast_create_ex(ZEND_AST_ARRAY_ELEM, 1, $4, $1); } 1238 | '&' variable 1239 { $$ = zend_ast_create_ex(ZEND_AST_ARRAY_ELEM, 1, $2, NULL); } 1240 | T_ELLIPSIS expr 1241 { $$ = zend_ast_create(ZEND_AST_UNPACK, $2); } 1242 | expr T_DOUBLE_ARROW T_LIST '(' array_pair_list ')' 1243 { $5->attr = ZEND_ARRAY_SYNTAX_LIST; 1244 $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $5, $1); } 1245 | T_LIST '(' array_pair_list ')' 1246 { $3->attr = ZEND_ARRAY_SYNTAX_LIST; 1247 $$ = zend_ast_create(ZEND_AST_ARRAY_ELEM, $3, NULL); } 1248 ; 1249 1250 encaps_list: 1251 encaps_list encaps_var 1252 { $$ = zend_ast_list_add($1, $2); } 1253 | encaps_list T_ENCAPSED_AND_WHITESPACE 1254 { $$ = zend_ast_list_add($1, $2); } 1255 | encaps_var 1256 { $$ = zend_ast_create_list(1, ZEND_AST_ENCAPS_LIST, $1); } 1257 | T_ENCAPSED_AND_WHITESPACE encaps_var 1258 { $$ = zend_ast_create_list(2, ZEND_AST_ENCAPS_LIST, $1, $2); } 1259 ; 1260 1261 encaps_var: 1262 T_VARIABLE 1263 { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1264 | T_VARIABLE '[' encaps_var_offset ']' 1265 { $$ = zend_ast_create(ZEND_AST_DIM, 1266 zend_ast_create(ZEND_AST_VAR, $1), $3); } 1267 | T_VARIABLE T_OBJECT_OPERATOR T_STRING 1268 { $$ = zend_ast_create(ZEND_AST_PROP, 1269 zend_ast_create(ZEND_AST_VAR, $1), $3); } 1270 | T_DOLLAR_OPEN_CURLY_BRACES expr '}' 1271 { $$ = zend_ast_create(ZEND_AST_VAR, $2); } 1272 | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' 1273 { $$ = zend_ast_create(ZEND_AST_VAR, $2); } 1274 | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}' 1275 { $$ = zend_ast_create(ZEND_AST_DIM, 1276 zend_ast_create(ZEND_AST_VAR, $2), $4); } 1277 | T_CURLY_OPEN variable '}' { $$ = $2; } 1278 ; 1279 1280 encaps_var_offset: 1281 T_STRING { $$ = $1; } 1282 | T_NUM_STRING { $$ = $1; } 1283 | '-' T_NUM_STRING { $$ = zend_negate_num_string($2); } 1284 | T_VARIABLE { $$ = zend_ast_create(ZEND_AST_VAR, $1); } 1285 ; 1286 1287 1288 internal_functions_in_yacc: 1289 T_ISSET '(' isset_variables possible_comma ')' { $$ = $3; } 1290 | T_EMPTY '(' expr ')' { $$ = zend_ast_create(ZEND_AST_EMPTY, $3); } 1291 | T_INCLUDE expr 1292 { $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_INCLUDE, $2); } 1293 | T_INCLUDE_ONCE expr 1294 { $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_INCLUDE_ONCE, $2); } 1295 | T_EVAL '(' expr ')' 1296 { $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_EVAL, $3); } 1297 | T_REQUIRE expr 1298 { $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_REQUIRE, $2); } 1299 | T_REQUIRE_ONCE expr 1300 { $$ = zend_ast_create_ex(ZEND_AST_INCLUDE_OR_EVAL, ZEND_REQUIRE_ONCE, $2); } 1301 ; 1302 1303 isset_variables: 1304 isset_variable { $$ = $1; } 1305 | isset_variables ',' isset_variable 1306 { $$ = zend_ast_create(ZEND_AST_AND, $1, $3); } 1307 ; 1308 1309 isset_variable: 1310 expr { $$ = zend_ast_create(ZEND_AST_ISSET, $1); } 1311 ; 1312 1313 %% 1314 1315 /* Copy to YYRES the contents of YYSTR after stripping away unnecessary 1316 quotes and backslashes, so that it's suitable for yyerror. The 1317 heuristic is that double-quoting is unnecessary unless the string 1318 contains an apostrophe, a comma, or backslash (other than 1319 backslash-backslash). YYSTR is taken from yytname. If YYRES is 1320 null, do not copy; instead, return the length of what the result 1321 would have been. */ 1322 static YYSIZE_T zend_yytnamerr(char *yyres, const char *yystr) 1323 { 1324 /* CG(parse_error) states: 1325 * 0 => yyres = NULL, yystr is the unexpected token 1326 * 1 => yyres = NULL, yystr is one of the expected tokens 1327 * 2 => yyres != NULL, yystr is the unexpected token 1328 * 3 => yyres != NULL, yystr is one of the expected tokens 1329 */ 1330 if (yyres && CG(parse_error) < 2) { 1331 CG(parse_error) = 2; 1332 } 1333 1334 if (CG(parse_error) % 2 == 0) { 1335 /* The unexpected token */ 1336 char buffer[120]; 1337 const unsigned char *end, *str, *tok1 = NULL, *tok2 = NULL; 1338 unsigned int len = 0, toklen = 0, yystr_len; 1339 1340 CG(parse_error)++; 1341 1342 if (LANG_SCNG(yy_text)[0] == 0 && 1343 LANG_SCNG(yy_leng) == 1 && 1344 strcmp(yystr, "\"end of file\"") == 0) { 1345 if (yyres) { 1346 yystpcpy(yyres, "end of file"); 1347 } 1348 return sizeof("end of file")-1; 1349 } 1350 1351 str = LANG_SCNG(yy_text); 1352 end = memchr(str, '\n', LANG_SCNG(yy_leng)); 1353 yystr_len = (unsigned int)yystrlen(yystr); 1354 1355 if ((tok1 = memchr(yystr, '(', yystr_len)) != NULL 1356 && (tok2 = zend_memrchr(yystr, ')', yystr_len)) != NULL) { 1357 toklen = (tok2 - tok1) + 1; 1358 } else { 1359 tok1 = tok2 = NULL; 1360 toklen = 0; 1361 } 1362 1363 if (end == NULL) { 1364 len = LANG_SCNG(yy_leng) > 30 ? 30 : LANG_SCNG(yy_leng); 1365 } else { 1366 len = (end - str) > 30 ? 30 : (end - str); 1367 } 1368 if (yyres) { 1369 if (toklen) { 1370 snprintf(buffer, sizeof(buffer), "'%.*s' %.*s", len, str, toklen, tok1); 1371 } else { 1372 snprintf(buffer, sizeof(buffer), "'%.*s'", len, str); 1373 } 1374 yystpcpy(yyres, buffer); 1375 } 1376 return len + (toklen ? toklen + 1 : 0) + 2; 1377 } 1378 1379 /* One of the expected tokens */ 1380 if (!yyres) { 1381 return yystrlen(yystr) - (*yystr == '"' ? 2 : 0); 1382 } 1383 1384 if (*yystr == '"') { 1385 YYSIZE_T yyn = 0; 1386 const char *yyp = yystr; 1387 1388 for (; *++yyp != '"'; ++yyn) { 1389 yyres[yyn] = *yyp; 1390 } 1391 yyres[yyn] = '\0'; 1392 return yyn; 1393 } 1394 yystpcpy(yyres, yystr); 1395 return strlen(yystr); 1396 } 1397
