diff options
| author | Andrew Dolgov <[email protected]> | 2022-03-22 12:24:31 +0300 |
|---|---|---|
| committer | Andrew Dolgov <[email protected]> | 2022-03-22 12:24:31 +0300 |
| commit | 1c4f7ab3b838b23afb2ee4dab14acbf75956e952 (patch) | |
| tree | 0a19274107d717efe92d2c0376cd3105fead5a11 /vendor/nikic/php-parser/grammar | |
| parent | 711662948768492e8d05b778a7d80eacaec368d2 (diff) | |
* add phpunit as a dev dependency
* add some basic tests for UrlHelper::rewrite_relative()
* fix UrlHelper::rewrite_relative() to work better on non-absolute
relative URL paths
Diffstat (limited to 'vendor/nikic/php-parser/grammar')
| -rw-r--r-- | vendor/nikic/php-parser/grammar/README.md | 30 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/parser.template | 106 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/php5.y | 1040 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/php7.y | 1196 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/phpyLang.php | 192 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/rebuildParsers.php | 81 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/tokens.template | 17 | ||||
| -rw-r--r-- | vendor/nikic/php-parser/grammar/tokens.y | 115 |
8 files changed, 2777 insertions, 0 deletions
diff --git a/vendor/nikic/php-parser/grammar/README.md b/vendor/nikic/php-parser/grammar/README.md new file mode 100644 index 000000000..4bae11d82 --- /dev/null +++ b/vendor/nikic/php-parser/grammar/README.md @@ -0,0 +1,30 @@ +What do all those files mean? +============================= + + * `php5.y`: PHP 5 grammar written in a pseudo language + * `php7.y`: PHP 7 grammar written in a pseudo language + * `tokens.y`: Tokens definition shared between PHP 5 and PHP 7 grammars + * `parser.template`: A `kmyacc` parser prototype file for PHP + * `tokens.template`: A `kmyacc` prototype file for the `Tokens` class + * `rebuildParsers.php`: Preprocesses the grammar and builds the parser using `kmyacc` + +.phpy pseudo language +===================== + +The `.y` file is a normal grammar in `kmyacc` (`yacc`) style, with some transformations +applied to it: + + * Nodes are created using the syntax `Name[..., ...]`. This is transformed into + `new Name(..., ..., attributes())` + * Some function-like constructs are resolved (see `rebuildParsers.php` for a list) + +Building the parser +=================== + +Run `php grammar/rebuildParsers.php` to rebuild the parsers. Additional options: + + * The `KMYACC` environment variable can be used to specify an alternative `kmyacc` binary. + By default the `phpyacc` dev dependency will be used. To use the original `kmyacc`, you + need to compile [moriyoshi's fork](https://github.com/moriyoshi/kmyacc-forked). + * The `--debug` option enables emission of debug symbols and creates the `y.output` file. + * The `--keep-tmp-grammar` option preserves the preprocessed grammar file. diff --git a/vendor/nikic/php-parser/grammar/parser.template b/vendor/nikic/php-parser/grammar/parser.template new file mode 100644 index 000000000..6166607c9 --- /dev/null +++ b/vendor/nikic/php-parser/grammar/parser.template @@ -0,0 +1,106 @@ +<?php +$meta # +#semval($) $this->semValue +#semval($,%t) $this->semValue +#semval(%n) $stackPos-(%l-%n) +#semval(%n,%t) $stackPos-(%l-%n) + +namespace PhpParser\Parser; + +use PhpParser\Error; +use PhpParser\Node; +use PhpParser\Node\Expr; +use PhpParser\Node\Name; +use PhpParser\Node\Scalar; +use PhpParser\Node\Stmt; +#include; + +/* This is an automatically GENERATED file, which should not be manually edited. + * Instead edit one of the following: + * * the grammar files grammar/php5.y or grammar/php7.y + * * the skeleton file grammar/parser.template + * * the preprocessing script grammar/rebuildParsers.php + */ +class #(-p) extends \PhpParser\ParserAbstract +{ + protected $tokenToSymbolMapSize = #(YYMAXLEX); + protected $actionTableSize = #(YYLAST); + protected $gotoTableSize = #(YYGLAST); + + protected $invalidSymbol = #(YYBADCH); + protected $errorSymbol = #(YYINTERRTOK); + protected $defaultAction = #(YYDEFAULT); + protected $unexpectedTokenRule = #(YYUNEXPECTED); + + protected $YY2TBLSTATE = #(YY2TBLSTATE); + protected $numNonLeafStates = #(YYNLSTATES); + + protected $symbolToName = array( + #listvar terminals + ); + + protected $tokenToSymbol = array( + #listvar yytranslate + ); + + protected $action = array( + #listvar yyaction + ); + + protected $actionCheck = array( + #listvar yycheck + ); + + protected $actionBase = array( + #listvar yybase + ); + + protected $actionDefault = array( + #listvar yydefault + ); + + protected $goto = array( + #listvar yygoto + ); + + protected $gotoCheck = array( + #listvar yygcheck + ); + + protected $gotoBase = array( + #listvar yygbase + ); + + protected $gotoDefault = array( + #listvar yygdefault + ); + + protected $ruleToNonTerminal = array( + #listvar yylhs + ); + + protected $ruleToLength = array( + #listvar yylen + ); +#if -t + + protected $productions = array( + #production-strings; + ); +#endif + + protected function initReduceCallbacks() { + $this->reduceCallbacks = [ +#reduce + %n => function ($stackPos) { + %b + }, +#noact + %n => function ($stackPos) { + $this->semValue = $this->semStack[$stackPos]; + }, +#endreduce + ]; + } +} +#tailcode; diff --git a/vendor/nikic/php-parser/grammar/php5.y b/vendor/nikic/php-parser/grammar/php5.y new file mode 100644 index 000000000..f9e7e7dd1 --- /dev/null +++ b/vendor/nikic/php-parser/grammar/php5.y @@ -0,0 +1,1040 @@ +%pure_parser +%expect 6 + +%tokens + +%% + +start: + top_statement_list { $$ = $this->handleNamespaces($1); } +; + +top_statement_list_ex: + top_statement_list_ex top_statement { pushNormalizing($1, $2); } + | /* empty */ { init(); } +; + +top_statement_list: + top_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +ampersand: + T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG + | T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG +; + +reserved_non_modifiers: + T_INCLUDE | T_INCLUDE_ONCE | T_EVAL | T_REQUIRE | T_REQUIRE_ONCE | T_LOGICAL_OR | T_LOGICAL_XOR | T_LOGICAL_AND + | T_INSTANCEOF | T_NEW | T_CLONE | T_EXIT | T_IF | T_ELSEIF | T_ELSE | T_ENDIF | T_ECHO | T_DO | T_WHILE + | T_ENDWHILE | T_FOR | T_ENDFOR | T_FOREACH | T_ENDFOREACH | T_DECLARE | T_ENDDECLARE | T_AS | T_TRY | T_CATCH + | T_FINALLY | T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO + | T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT + | T_BREAK | T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE | T_CLASS + | 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 + | T_MATCH +; + +semi_reserved: + reserved_non_modifiers + | T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC +; + +identifier_ex: + T_STRING { $$ = Node\Identifier[$1]; } + | semi_reserved { $$ = Node\Identifier[$1]; } +; + +identifier: + T_STRING { $$ = Node\Identifier[$1]; } +; + +reserved_non_modifiers_identifier: + reserved_non_modifiers { $$ = Node\Identifier[$1]; } +; + +namespace_name: + T_STRING { $$ = Name[$1]; } + | T_NAME_QUALIFIED { $$ = Name[$1]; } +; + +legacy_namespace_name: + namespace_name { $$ = $1; } + | T_NAME_FULLY_QUALIFIED { $$ = Name[substr($1, 1)]; } +; + +plain_variable: + T_VARIABLE { $$ = Expr\Variable[parseVar($1)]; } +; + +top_statement: + statement { $$ = $1; } + | function_declaration_statement { $$ = $1; } + | class_declaration_statement { $$ = $1; } + | T_HALT_COMPILER + { $$ = Stmt\HaltCompiler[$this->lexer->handleHaltCompiler()]; } + | T_NAMESPACE namespace_name ';' + { $$ = Stmt\Namespace_[$2, null]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_SEMICOLON); + $this->checkNamespace($$); } + | T_NAMESPACE namespace_name '{' top_statement_list '}' + { $$ = Stmt\Namespace_[$2, $4]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); + $this->checkNamespace($$); } + | T_NAMESPACE '{' top_statement_list '}' + { $$ = Stmt\Namespace_[null, $3]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); + $this->checkNamespace($$); } + | T_USE use_declarations ';' { $$ = Stmt\Use_[$2, Stmt\Use_::TYPE_NORMAL]; } + | T_USE use_type use_declarations ';' { $$ = Stmt\Use_[$3, $2]; } + | group_use_declaration ';' { $$ = $1; } + | T_CONST constant_declaration_list ';' { $$ = Stmt\Const_[$2]; } +; + +use_type: + T_FUNCTION { $$ = Stmt\Use_::TYPE_FUNCTION; } + | T_CONST { $$ = Stmt\Use_::TYPE_CONSTANT; } +; + +group_use_declaration: + T_USE use_type legacy_namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations '}' + { $$ = Stmt\GroupUse[$3, $6, $2]; } + | T_USE legacy_namespace_name T_NS_SEPARATOR '{' inline_use_declarations '}' + { $$ = Stmt\GroupUse[$2, $5, Stmt\Use_::TYPE_UNKNOWN]; } +; + +unprefixed_use_declarations: + unprefixed_use_declarations ',' unprefixed_use_declaration + { push($1, $3); } + | unprefixed_use_declaration { init($1); } +; + +use_declarations: + use_declarations ',' use_declaration { push($1, $3); } + | use_declaration { init($1); } +; + +inline_use_declarations: + inline_use_declarations ',' inline_use_declaration { push($1, $3); } + | inline_use_declaration { init($1); } +; + +unprefixed_use_declaration: + namespace_name + { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } + | namespace_name T_AS identifier + { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } +; + +use_declaration: + legacy_namespace_name + { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } + | legacy_namespace_name T_AS identifier + { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } +; + +inline_use_declaration: + unprefixed_use_declaration { $$ = $1; $$->type = Stmt\Use_::TYPE_NORMAL; } + | use_type unprefixed_use_declaration { $$ = $2; $$->type = $1; } +; + +constant_declaration_list: + constant_declaration_list ',' constant_declaration { push($1, $3); } + | constant_declaration { init($1); } +; + +constant_declaration: + identifier '=' static_scalar { $$ = Node\Const_[$1, $3]; } +; + +class_const_list: + class_const_list ',' class_const { push($1, $3); } + | class_const { init($1); } +; + +class_const: + identifier_ex '=' static_scalar { $$ = Node\Const_[$1, $3]; } +; + +inner_statement_list_ex: + inner_statement_list_ex inner_statement { pushNormalizing($1, $2); } + | /* empty */ { init(); } +; + +inner_statement_list: + inner_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +inner_statement: + statement { $$ = $1; } + | function_declaration_statement { $$ = $1; } + | class_declaration_statement { $$ = $1; } + | T_HALT_COMPILER + { throw new Error('__HALT_COMPILER() can only be used from the outermost scope', attributes()); } +; + +non_empty_statement: + '{' inner_statement_list '}' + { + if ($2) { + $$ = $2; prependLeadingComments($$); + } else { + makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); + if (null === $$) { $$ = array(); } + } + } + | T_IF parentheses_expr statement elseif_list else_single + { $$ = Stmt\If_[$2, ['stmts' => toArray($3), 'elseifs' => $4, 'else' => $5]]; } + | T_IF parentheses_expr ':' inner_statement_list new_elseif_list new_else_single T_ENDIF ';' + { $$ = Stmt\If_[$2, ['stmts' => $4, 'elseifs' => $5, 'else' => $6]]; } + | T_WHILE parentheses_expr while_statement { $$ = Stmt\While_[$2, $3]; } + | T_DO statement T_WHILE parentheses_expr ';' { $$ = Stmt\Do_ [$4, toArray($2)]; } + | T_FOR '(' for_expr ';' for_expr ';' for_expr ')' for_statement + { $$ = Stmt\For_[['init' => $3, 'cond' => $5, 'loop' => $7, 'stmts' => $9]]; } + | T_SWITCH parentheses_expr switch_case_list { $$ = Stmt\Switch_[$2, $3]; } + | T_BREAK ';' { $$ = Stmt\Break_[null]; } + | T_BREAK expr ';' { $$ = Stmt\Break_[$2]; } + | T_CONTINUE ';' { $$ = Stmt\Continue_[null]; } + | T_CONTINUE expr ';' { $$ = Stmt\Continue_[$2]; } + | T_RETURN ';' { $$ = Stmt\Return_[null]; } + | T_RETURN expr ';' { $$ = Stmt\Return_[$2]; } + | T_GLOBAL global_var_list ';' { $$ = Stmt\Global_[$2]; } + | T_STATIC static_var_list ';' { $$ = Stmt\Static_[$2]; } + | T_ECHO expr_list ';' { $$ = Stmt\Echo_[$2]; } + | T_INLINE_HTML { $$ = Stmt\InlineHTML[$1]; } + | yield_expr ';' { $$ = Stmt\Expression[$1]; } + | expr ';' { $$ = Stmt\Expression[$1]; } + | T_UNSET '(' variables_list ')' ';' { $$ = Stmt\Unset_[$3]; } + | T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement + { $$ = Stmt\Foreach_[$3, $5[0], ['keyVar' => null, 'byRef' => $5[1], 'stmts' => $7]]; } + | T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement + { $$ = Stmt\Foreach_[$3, $7[0], ['keyVar' => $5, 'byRef' => $7[1], 'stmts' => $9]]; } + | T_DECLARE '(' declare_list ')' declare_statement { $$ = Stmt\Declare_[$3, $5]; } + | T_TRY '{' inner_statement_list '}' catches optional_finally + { $$ = Stmt\TryCatch[$3, $5, $6]; $this->checkTryCatch($$); } + | T_THROW expr ';' { $$ = Stmt\Throw_[$2]; } + | T_GOTO identifier ';' { $$ = Stmt\Goto_[$2]; } + | identifier ':' { $$ = Stmt\Label[$1]; } + | expr error { $$ = Stmt\Expression[$1]; } + | error { $$ = array(); /* means: no statement */ } +; + +statement: + non_empty_statement { $$ = $1; } + | ';' + { makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); + if ($$ === null) $$ = array(); /* means: no statement */ } +; + +catches: + /* empty */ { init(); } + | catches catch { push($1, $2); } +; + +catch: + T_CATCH '(' name plain_variable ')' '{' inner_statement_list '}' + { $$ = Stmt\Catch_[array($3), $4, $7]; } +; + +optional_finally: + /* empty */ { $$ = null; } + | T_FINALLY '{' inner_statement_list '}' { $$ = Stmt\Finally_[$3]; } +; + +variables_list: + variable { init($1); } + | variables_list ',' variable { push($1, $3); } +; + +optional_ref: + /* empty */ { $$ = false; } + | ampersand { $$ = true; } +; + +optional_arg_ref: + /* empty */ { $$ = false; } + | T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG { $$ = true; } +; + +optional_ellipsis: + /* empty */ { $$ = false; } + | T_ELLIPSIS { $$ = true; } +; + +function_declaration_statement: + T_FUNCTION optional_ref identifier '(' parameter_list ')' optional_return_type '{' inner_statement_list '}' + { $$ = Stmt\Function_[$3, ['byRef' => $2, 'params' => $5, 'returnType' => $7, 'stmts' => $9]]; } +; + +class_declaration_statement: + class_entry_type identifier extends_from implements_list '{' class_statement_list '}' + { $$ = Stmt\Class_[$2, ['type' => $1, 'extends' => $3, 'implements' => $4, 'stmts' => $6]]; + $this->checkClass($$, #2); } + | T_INTERFACE identifier interface_extends_list '{' class_statement_list '}' + { $$ = Stmt\Interface_[$2, ['extends' => $3, 'stmts' => $5]]; + $this->checkInterface($$, #2); } + | T_TRAIT identifier '{' class_statement_list '}' + { $$ = Stmt\Trait_[$2, ['stmts' => $4]]; } +; + +class_entry_type: + T_CLASS { $$ = 0; } + | T_ABSTRACT T_CLASS { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } + | T_FINAL T_CLASS { $$ = Stmt\Class_::MODIFIER_FINAL; } +; + +extends_from: + /* empty */ { $$ = null; } + | T_EXTENDS class_name { $$ = $2; } +; + +interface_extends_list: + /* empty */ { $$ = array(); } + | T_EXTENDS class_name_list { $$ = $2; } +; + +implements_list: + /* empty */ { $$ = array(); } + | T_IMPLEMENTS class_name_list { $$ = $2; } +; + +class_name_list: + class_name { init($1); } + | class_name_list ',' class_name { push($1, $3); } +; + +for_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDFOR ';' { $$ = $2; } +; + +foreach_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; } +; + +declare_statement: + non_empty_statement { $$ = toArray($1); } + | ';' { $$ = null; } + | ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; } +; + +declare_list: + declare_list_element { init($1); } + | declare_list ',' declare_list_element { push($1, $3); } +; + +declare_list_element: + identifier '=' static_scalar { $$ = Stmt\DeclareDeclare[$1, $3]; } +; + +switch_case_list: + '{' case_list '}' { $$ = $2; } + | '{' ';' case_list '}' { $$ = $3; } + | ':' case_list T_ENDSWITCH ';' { $$ = $2; } + | ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; } +; + +case_list: + /* empty */ { init(); } + | case_list case { push($1, $2); } +; + +case: + T_CASE expr case_separator inner_statement_list_ex { $$ = Stmt\Case_[$2, $4]; } + | T_DEFAULT case_separator inner_statement_list_ex { $$ = Stmt\Case_[null, $3]; } +; + +case_separator: + ':' + | ';' +; + +while_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; } +; + +elseif_list: + /* empty */ { init(); } + | elseif_list elseif { push($1, $2); } +; + +elseif: + T_ELSEIF parentheses_expr statement { $$ = Stmt\ElseIf_[$2, toArray($3)]; } +; + +new_elseif_list: + /* empty */ { init(); } + | new_elseif_list new_elseif { push($1, $2); } +; + +new_elseif: + T_ELSEIF parentheses_expr ':' inner_statement_list { $$ = Stmt\ElseIf_[$2, $4]; } +; + +else_single: + /* empty */ { $$ = null; } + | T_ELSE statement { $$ = Stmt\Else_[toArray($2)]; } +; + +new_else_single: + /* empty */ { $$ = null; } + | T_ELSE ':' inner_statement_list { $$ = Stmt\Else_[$3]; } +; + +foreach_variable: + variable { $$ = array($1, false); } + | ampersand variable { $$ = array($2, true); } + | list_expr { $$ = array($1, false); } +; + +parameter_list: + non_empty_parameter_list { $$ = $1; } + | /* empty */ { $$ = array(); } +; + +non_empty_parameter_list: + parameter { init($1); } + | non_empty_parameter_list ',' parameter { push($1, $3); } +; + +parameter: + optional_param_type optional_arg_ref optional_ellipsis plain_variable + { $$ = Node\Param[$4, null, $1, $2, $3]; $this->checkParam($$); } + | optional_param_type optional_arg_ref optional_ellipsis plain_variable '=' static_scalar + { $$ = Node\Param[$4, $6, $1, $2, $3]; $this->checkParam($$); } +; + +type: + name { $$ = $1; } + | T_ARRAY { $$ = Node\Identifier['array']; } + | T_CALLABLE { $$ = Node\Identifier['callable']; } +; + +optional_param_type: + /* empty */ { $$ = null; } + | type { $$ = $1; } +; + +optional_return_type: + /* empty */ { $$ = null; } + | ':' type { $$ = $2; } +; + +argument_list: + '(' ')' { $$ = array(); } + | '(' non_empty_argument_list ')' { $$ = $2; } + | '(' yield_expr ')' { $$ = array(Node\Arg[$2, false, false]); } +; + +non_empty_argument_list: + argument { init($1); } + | non_empty_argument_list ',' argument { push($1, $3); } +; + +argument: + expr { $$ = Node\Arg[$1, false, false]; } + | ampersand variable { $$ = Node\Arg[$2, true, false]; } + | T_ELLIPSIS expr { $$ = Node\Arg[$2, false, true]; } +; + +global_var_list: + global_var_list ',' global_var { push($1, $3); } + | global_var { init($1); } +; + +global_var: + plain_variable { $$ = $1; } + | '$' variable { $$ = Expr\Variable[$2]; } + | '$' '{' expr '}' { $$ = Expr\Variable[$3]; } +; + +static_var_list: + static_var_list ',' static_var { push($1, $3); } + | static_var { init($1); } +; + +static_var: + plain_variable { $$ = Stmt\StaticVar[$1, null]; } + | plain_variable '=' static_scalar { $$ = Stmt\StaticVar[$1, $3]; } +; + +class_statement_list_ex: + class_statement_list_ex class_statement { if ($2 !== null) { push($1, $2); } } + | /* empty */ { init(); } +; + +class_statement_list: + class_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +class_statement: + variable_modifiers property_declaration_list ';' + { $$ = Stmt\Property[$1, $2]; $this->checkProperty($$, #1); } + | T_CONST class_const_list ';' { $$ = Stmt\ClassConst[$2, 0]; } + | method_modifiers T_FUNCTION optional_ref identifier_ex '(' parameter_list ')' optional_return_type method_body + { $$ = Stmt\ClassMethod[$4, ['type' => $1, 'byRef' => $3, 'params' => $6, 'returnType' => $8, 'stmts' => $9]]; + $this->checkClassMethod($$, #1); } + | T_USE class_name_list trait_adaptations { $$ = Stmt\TraitUse[$2, $3]; } +; + +trait_adaptations: + ';' { $$ = array(); } + | '{' trait_adaptation_list '}' { $$ = $2; } +; + +trait_adaptation_list: + /* empty */ { init(); } + | trait_adaptation_list trait_adaptation { push($1, $2); } +; + +trait_adaptation: + trait_method_reference_fully_qualified T_INSTEADOF class_name_list ';' + { $$ = Stmt\TraitUseAdaptation\Precedence[$1[0], $1[1], $3]; } + | trait_method_reference T_AS member_modifier identifier_ex ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, $4]; } + | trait_method_reference T_AS member_modifier ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, null]; } + | trait_method_reference T_AS identifier ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } + | trait_method_reference T_AS reserved_non_modifiers_identifier ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } +; + +trait_method_reference_fully_qualified: + name T_PAAMAYIM_NEKUDOTAYIM identifier_ex { $$ = array($1, $3); } +; +trait_method_reference: + trait_method_reference_fully_qualified { $$ = $1; } + | identifier_ex { $$ = array(null, $1); } +; + +method_body: + ';' /* abstract method */ { $$ = null; } + | '{' inner_statement_list '}' { $$ = $2; } +; + +variable_modifiers: + non_empty_member_modifiers { $$ = $1; } + | T_VAR { $$ = 0; } +; + +method_modifiers: + /* empty */ { $$ = 0; } + | non_empty_member_modifiers { $$ = $1; } +; + +non_empty_member_modifiers: + member_modifier { $$ = $1; } + | non_empty_member_modifiers member_modifier { $this->checkModifier($1, $2, #2); $$ = $1 | $2; } +; + +member_modifier: + T_PUBLIC { $$ = Stmt\Class_::MODIFIER_PUBLIC; } + | T_PROTECTED { $$ = Stmt\Class_::MODIFIER_PROTECTED; } + | T_PRIVATE { $$ = Stmt\Class_::MODIFIER_PRIVATE; } + | T_STATIC { $$ = Stmt\Class_::MODIFIER_STATIC; } + | T_ABSTRACT { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } + | T_FINAL { $$ = Stmt\Class_::MODIFIER_FINAL; } +; + +property_declaration_list: + property_declaration { init($1); } + | property_declaration_list ',' property_declaration { push($1, $3); } +; + +property_decl_name: + T_VARIABLE { $$ = Node\VarLikeIdentifier[parseVar($1)]; } +; + +property_declaration: + property_decl_name { $$ = Stmt\PropertyProperty[$1, null]; } + | property_decl_name '=' static_scalar { $$ = Stmt\PropertyProperty[$1, $3]; } +; + +expr_list: + expr_list ',' expr { push($1, $3); } + | expr { init($1); } +; + +for_expr: + /* empty */ { $$ = array(); } + | expr_list { $$ = $1; } +; + +expr: + variable { $$ = $1; } + | list_expr '=' expr { $$ = Expr\Assign[$1, $3]; } + | variable '=' expr { $$ = Expr\Assign[$1, $3]; } + | variable '=' ampersand variable { $$ = Expr\AssignRef[$1, $4]; } + | variable '=' ampersand new_expr { $$ = Expr\AssignRef[$1, $4]; } + | new_expr { $$ = $1; } + | T_CLONE expr { $$ = Expr\Clone_[$2]; } + | variable T_PLUS_EQUAL expr { $$ = Expr\AssignOp\Plus [$1, $3]; } + | variable T_MINUS_EQUAL expr { $$ = Expr\AssignOp\Minus [$1, $3]; } + | variable T_MUL_EQUAL expr { $$ = Expr\AssignOp\Mul [$1, $3]; } + | variable T_DIV_EQUAL expr { $$ = Expr\AssignOp\Div [$1, $3]; } + | variable T_CONCAT_EQUAL expr { $$ = Expr\AssignOp\Concat [$1, $3]; } + | variable T_MOD_EQUAL expr { $$ = Expr\AssignOp\Mod [$1, $3]; } + | variable T_AND_EQUAL expr { $$ = Expr\AssignOp\BitwiseAnd[$1, $3]; } + | variable T_OR_EQUAL expr { $$ = Expr\AssignOp\BitwiseOr [$1, $3]; } + | variable T_XOR_EQUAL expr { $$ = Expr\AssignOp\BitwiseXor[$1, $3]; } + | variable T_SL_EQUAL expr { $$ = Expr\AssignOp\ShiftLeft [$1, $3]; } + | variable T_SR_EQUAL expr { $$ = Expr\AssignOp\ShiftRight[$1, $3]; } + | variable T_POW_EQUAL expr { $$ = Expr\AssignOp\Pow [$1, $3]; } + | variable T_COALESCE_EQUAL expr { $$ = Expr\AssignOp\Coalesce [$1, $3]; } + | variable T_INC { $$ = Expr\PostInc[$1]; } + | T_INC variable { $$ = Expr\PreInc [$2]; } + | variable T_DEC { $$ = Expr\PostDec[$1]; } + | T_DEC variable { $$ = Expr\PreDec [$2]; } + | expr T_BOOLEAN_OR expr { $$ = Expr\BinaryOp\BooleanOr [$1, $3]; } + | expr T_BOOLEAN_AND expr { $$ = Expr\BinaryOp\BooleanAnd[$1, $3]; } + | expr T_LOGICAL_OR expr { $$ = Expr\BinaryOp\LogicalOr [$1, $3]; } + | expr T_LOGICAL_AND expr { $$ = Expr\BinaryOp\LogicalAnd[$1, $3]; } + | expr T_LOGICAL_XOR expr { $$ = Expr\BinaryOp\LogicalXor[$1, $3]; } + | expr '|' expr { $$ = Expr\BinaryOp\BitwiseOr [$1, $3]; } + | expr T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | expr T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | expr '^' expr { $$ = Expr\BinaryOp\BitwiseXor[$1, $3]; } + | expr '.' expr { $$ = Expr\BinaryOp\Concat [$1, $3]; } + | expr '+' expr { $$ = Expr\BinaryOp\Plus [$1, $3]; } + | expr '-' expr { $$ = Expr\BinaryOp\Minus [$1, $3]; } + | expr '*' expr { $$ = Expr\BinaryOp\Mul [$1, $3]; } + | expr '/' expr { $$ = Expr\BinaryOp\Div [$1, $3]; } + | expr '%' expr { $$ = Expr\BinaryOp\Mod [$1, $3]; } + | expr T_SL expr { $$ = Expr\BinaryOp\ShiftLeft [$1, $3]; } + | expr T_SR expr { $$ = Expr\BinaryOp\ShiftRight[$1, $3]; } + | expr T_POW expr { $$ = Expr\BinaryOp\Pow [$1, $3]; } + | '+' expr %prec T_INC { $$ = Expr\UnaryPlus [$2]; } + | '-' expr %prec T_INC { $$ = Expr\UnaryMinus[$2]; } + | '!' expr { $$ = Expr\BooleanNot[$2]; } + | '~' expr { $$ = Expr\BitwiseNot[$2]; } + | expr T_IS_IDENTICAL expr { $$ = Expr\BinaryOp\Identical [$1, $3]; } + | expr T_IS_NOT_IDENTICAL expr { $$ = Expr\BinaryOp\NotIdentical [$1, $3]; } + | expr T_IS_EQUAL expr { $$ = Expr\BinaryOp\Equal [$1, $3]; } + | expr T_IS_NOT_EQUAL expr { $$ = Expr\BinaryOp\NotEqual [$1, $3]; } + | expr T_SPACESHIP expr { $$ = Expr\BinaryOp\Spaceship [$1, $3]; } + | expr '<' expr { $$ = Expr\BinaryOp\Smaller [$1, $3]; } + | expr T_IS_SMALLER_OR_EQUAL expr { $$ = Expr\BinaryOp\SmallerOrEqual[$1, $3]; } + | expr '>' expr { $$ = Expr\BinaryOp\Greater [$1, $3]; } + | expr T_IS_GREATER_OR_EQUAL expr { $$ = Expr\BinaryOp\GreaterOrEqual[$1, $3]; } + | expr T_INSTANCEOF class_name_reference { $$ = Expr\Instanceof_[$1, $3]; } + | parentheses_expr { $$ = $1; } + /* we need a separate '(' new_expr ')' rule to avoid problems caused by a s/r conflict */ + | '(' new_expr ')' { $$ = $2; } + | expr '?' expr ':' expr { $$ = Expr\Ternary[$1, $3, $5]; } + | expr '?' ':' expr { $$ = Expr\Ternary[$1, null, $4]; } + | expr T_COALESCE expr { $$ = Expr\BinaryOp\Coalesce[$1, $3]; } + | T_ISSET '(' variables_list ')' { $$ = Expr\Isset_[$3]; } + | T_EMPTY '(' expr ')' { $$ = Expr\Empty_[$3]; } + | T_INCLUDE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE]; } + | T_INCLUDE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE_ONCE]; } + | T_EVAL parentheses_expr { $$ = Expr\Eval_[$2]; } + | T_REQUIRE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE]; } + | T_REQUIRE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE_ONCE]; } + | T_INT_CAST expr { $$ = Expr\Cast\Int_ [$2]; } + | T_DOUBLE_CAST expr + { $attrs = attributes(); + $attrs['kind'] = $this->getFloatCastKind($1); + $$ = new Expr\Cast\Double($2, $attrs); } + | T_STRING_CAST expr { $$ = Expr\Cast\String_ [$2]; } + | T_ARRAY_CAST expr { $$ = Expr\Cast\Array_ [$2]; } + | T_OBJECT_CAST expr { $$ = Expr\Cast\Object_ [$2]; } + | T_BOOL_CAST expr { $$ = Expr\Cast\Bool_ [$2]; } + | T_UNSET_CAST expr { $$ = Expr\Cast\Unset_ [$2]; } + | T_EXIT exit_expr + { $attrs = attributes(); + $attrs['kind'] = strtolower($1) === 'exit' ? Expr\Exit_::KIND_EXIT : Expr\Exit_::KIND_DIE; + $$ = new Expr\Exit_($2, $attrs); } + | '@' expr { $$ = Expr\ErrorSuppress[$2]; } + | scalar { $$ = $1; } + | array_expr { $$ = $1; } + | scalar_dereference { $$ = $1; } + | '`' backticks_expr '`' { $$ = Expr\ShellExec[$2]; } + | T_PRINT expr { $$ = Expr\Print_[$2]; } + | T_YIELD { $$ = Expr\Yield_[null, null]; } + | T_YIELD_FROM expr { $$ = Expr\YieldFrom[$2]; } + | T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type + '{' inner_statement_list '}' + { $$ = Expr\Closure[['static' => false, 'byRef' => $2, 'params' => $4, 'uses' => $6, 'returnType' => $7, 'stmts' => $9]]; } + | T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type + '{' inner_statement_list '}' + { $$ = Expr\Closure[['static' => true, 'byRef' => $3, 'params' => $5, 'uses' => $7, 'returnType' => $8, 'stmts' => $10]]; } +; + +parentheses_expr: + '(' expr ')' { $$ = $2; } + | '(' yield_expr ')' { $$ = $2; } +; + +yield_expr: + T_YIELD expr { $$ = Expr\Yield_[$2, null]; } + | T_YIELD expr T_DOUBLE_ARROW expr { $$ = Expr\Yield_[$4, $2]; } +; + +array_expr: + T_ARRAY '(' array_pair_list ')' + { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_LONG; + $$ = new Expr\Array_($3, $attrs); } + | '[' array_pair_list ']' + { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_SHORT; + $$ = new Expr\Array_($2, $attrs); } +; + +scalar_dereference: + array_expr '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | T_CONSTANT_ENCAPSED_STRING '[' dim_offset ']' + { $attrs = attributes(); $attrs['kind'] = strKind($1); + $$ = Expr\ArrayDimFetch[new Scalar\String_(Scalar\String_::parse($1), $attrs), $3]; } + | constant '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | scalar_dereference '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + /* alternative array syntax missing intentionally */ +; + +anonymous_class: + T_CLASS ctor_arguments extends_from implements_list '{' class_statement_list '}' + { $$ = array(Stmt\Class_[null, ['type' => 0, 'extends' => $3, 'implements' => $4, 'stmts' => $6]], $2); + $this->checkClass($$[0], -1); } +; + +new_expr: + T_NEW class_name_reference ctor_arguments { $$ = Expr\New_[$2, $3]; } + | T_NEW anonymous_class + { list($class, $ctorArgs) = $2; $$ = Expr\New_[$class, $ctorArgs]; } +; + +lexical_vars: + /* empty */ { $$ = array(); } + | T_USE '(' lexical_var_list ')' { $$ = $3; } +; + +lexical_var_list: + lexical_var { init($1); } + | lexical_var_list ',' lexical_var { push($1, $3); } +; + +lexical_var: + optional_ref plain_variable { $$ = Expr\ClosureUse[$2, $1]; } +; + +function_call: + name argument_list { $$ = Expr\FuncCall[$1, $2]; } + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM identifier_ex argument_list + { $$ = Expr\StaticCall[$1, $3, $4]; } + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '{' expr '}' argument_list + { $$ = Expr\StaticCall[$1, $4, $6]; } + | static_property argument_list + { $$ = $this->fixupPhp5StaticPropCall($1, $2, attributes()); } + | variable_without_objects argument_list + { $$ = Expr\FuncCall[$1, $2]; } + | function_call '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + /* alternative array syntax missing intentionally */ +; + +class_name: + T_STATIC { $$ = Name[$1]; } + | name { $$ = $1; } +; + +name: + T_STRING { $$ = Name[$1]; } + | T_NAME_QUALIFIED { $$ = Name[$1]; } + | T_NAME_FULLY_QUALIFIED { $$ = Name\FullyQualified[substr($1, 1)]; } + | T_NAME_RELATIVE { $$ = Name\Relative[substr($1, 10)]; } +; + +class_name_reference: + class_name { $$ = $1; } + | dynamic_class_name_reference { $$ = $1; } +; + +dynamic_class_name_reference: + object_access_for_dcnr { $$ = $1; } + | base_variable { $$ = $1; } +; + +class_name_or_var: + class_name { $$ = $1; } + | reference_variable { $$ = $1; } +; + +object_access_for_dcnr: + base_variable T_OBJECT_OPERATOR object_property + { $$ = Expr\PropertyFetch[$1, $3]; } + | object_access_for_dcnr T_OBJECT_OPERATOR object_property + { $$ = Expr\PropertyFetch[$1, $3]; } + | object_access_for_dcnr '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | object_access_for_dcnr '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } +; + +exit_expr: + /* empty */ { $$ = null; } + | '(' ')' { $$ = null; } + | parentheses_expr { $$ = $1; } +; + +backticks_expr: + /* empty */ { $$ = array(); } + | T_ENCAPSED_AND_WHITESPACE + { $$ = array(Scalar\EncapsedStringPart[Scalar\String_::parseEscapeSequences($1, '`', false)]); } + | encaps_list { parseEncapsed($1, '`', false); $$ = $1; } +; + +ctor_arguments: + /* empty */ { $$ = array(); } + | argument_list { $$ = $1; } +; + +common_scalar: + T_LNUMBER { $$ = $this->parseLNumber($1, attributes(), true); } + | T_DNUMBER { $$ = Scalar\DNumber[Scalar\DNumber::parse($1)]; } + | T_CONSTANT_ENCAPSED_STRING + { $attrs = attributes(); $attrs['kind'] = strKind($1); + $$ = new Scalar\String_(Scalar\String_::parse($1, false), $attrs); } + | T_LINE { $$ = Scalar\MagicConst\Line[]; } + | T_FILE { $$ = Scalar\MagicConst\File[]; } + | T_DIR { $$ = Scalar\MagicConst\Dir[]; } + | T_CLASS_C { $$ = Scalar\MagicConst\Class_[]; } + | T_TRAIT_C { $$ = Scalar\MagicConst\Trait_[]; } + | T_METHOD_C { $$ = Scalar\MagicConst\Method[]; } + | T_FUNC_C { $$ = Scalar\MagicConst\Function_[]; } + | T_NS_C { $$ = Scalar\MagicConst\Namespace_[]; } + | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC + { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), false); } + | T_START_HEREDOC T_END_HEREDOC + { $$ = $this->parseDocString($1, '', $2, attributes(), stackAttributes(#2), false); } +; + +static_scalar: + common_scalar { $$ = $1; } + | class_name T_PAAMAYIM_NEKUDOTAYIM identifier_ex { $$ = Expr\ClassConstFetch[$1, $3]; } + | name { $$ = Expr\ConstFetch[$1]; } + | T_ARRAY '(' static_array_pair_list ')' { $$ = Expr\Array_[$3]; } + | '[' static_array_pair_list ']' { $$ = Expr\Array_[$2]; } + | static_operation { $$ = $1; } +; + +static_operation: + static_scalar T_BOOLEAN_OR static_scalar { $$ = Expr\BinaryOp\BooleanOr [$1, $3]; } + | static_scalar T_BOOLEAN_AND static_scalar { $$ = Expr\BinaryOp\BooleanAnd[$1, $3]; } + | static_scalar T_LOGICAL_OR static_scalar { $$ = Expr\BinaryOp\LogicalOr [$1, $3]; } + | static_scalar T_LOGICAL_AND static_scalar { $$ = Expr\BinaryOp\LogicalAnd[$1, $3]; } + | static_scalar T_LOGICAL_XOR static_scalar { $$ = Expr\BinaryOp\LogicalXor[$1, $3]; } + | static_scalar '|' static_scalar { $$ = Expr\BinaryOp\BitwiseOr [$1, $3]; } + | static_scalar T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG static_scalar + { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | static_scalar T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG static_scalar + { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | static_scalar '^' static_scalar { $$ = Expr\BinaryOp\BitwiseXor[$1, $3]; } + | static_scalar '.' static_scalar { $$ = Expr\BinaryOp\Concat [$1, $3]; } + | static_scalar '+' static_scalar { $$ = Expr\BinaryOp\Plus [$1, $3]; } + | static_scalar '-' static_scalar { $$ = Expr\BinaryOp\Minus [$1, $3]; } + | static_scalar '*' static_scalar { $$ = Expr\BinaryOp\Mul [$1, $3]; } + | static_scalar '/' static_scalar { $$ = Expr\BinaryOp\Div [$1, $3]; } + | static_scalar '%' static_scalar { $$ = Expr\BinaryOp\Mod [$1, $3]; } + | static_scalar T_SL static_scalar { $$ = Expr\BinaryOp\ShiftLeft [$1, $3]; } + | static_scalar T_SR static_scalar { $$ = Expr\BinaryOp\ShiftRight[$1, $3]; } + | static_scalar T_POW static_scalar { $$ = Expr\BinaryOp\Pow [$1, $3]; } + | '+' static_scalar %prec T_INC { $$ = Expr\UnaryPlus [$2]; } + | '-' static_scalar %prec T_INC { $$ = Expr\UnaryMinus[$2]; } + | '!' static_scalar { $$ = Expr\BooleanNot[$2]; } + | '~' static_scalar { $$ = Expr\BitwiseNot[$2]; } + | static_scalar T_IS_IDENTICAL static_scalar { $$ = Expr\BinaryOp\Identical [$1, $3]; } + | static_scalar T_IS_NOT_IDENTICAL static_scalar { $$ = Expr\BinaryOp\NotIdentical [$1, $3]; } + | static_scalar T_IS_EQUAL static_scalar { $$ = Expr\BinaryOp\Equal [$1, $3]; } + | static_scalar T_IS_NOT_EQUAL static_scalar { $$ = Expr\BinaryOp\NotEqual [$1, $3]; } + | static_scalar '<' static_scalar { $$ = Expr\BinaryOp\Smaller [$1, $3]; } + | static_scalar T_IS_SMALLER_OR_EQUAL static_scalar { $$ = Expr\BinaryOp\SmallerOrEqual[$1, $3]; } + | static_scalar '>' static_scalar { $$ = Expr\BinaryOp\Greater [$1, $3]; } + | static_scalar T_IS_GREATER_OR_EQUAL static_scalar { $$ = Expr\BinaryOp\GreaterOrEqual[$1, $3]; } + | static_scalar '?' static_scalar ':' static_scalar { $$ = Expr\Ternary[$1, $3, $5]; } + | static_scalar '?' ':' static_scalar { $$ = Expr\Ternary[$1, null, $4]; } + | static_scalar '[' static_scalar ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | '(' static_scalar ')' { $$ = $2; } +; + +constant: + name { $$ = Expr\ConstFetch[$1]; } + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM identifier_ex + { $$ = Expr\ClassConstFetch[$1, $3]; } +; + +scalar: + common_scalar { $$ = $1; } + | constant { $$ = $1; } + | '"' encaps_list '"' + { $attrs = attributes(); $attrs['kind'] = Scalar\String_::KIND_DOUBLE_QUOTED; + parseEncapsed($2, '"', true); $$ = new Scalar\Encapsed($2, $attrs); } + | T_START_HEREDOC encaps_list T_END_HEREDOC + { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), true); } +; + +static_array_pair_list: + /* empty */ { $$ = array(); } + | non_empty_static_array_pair_list optional_comma { $$ = $1; } +; + +optional_comma: + /* empty */ + | ',' +; + +non_empty_static_array_pair_list: + non_empty_static_array_pair_list ',' static_array_pair { push($1, $3); } + | static_array_pair { init($1); } +; + +static_array_pair: + static_scalar T_DOUBLE_ARROW static_scalar { $$ = Expr\ArrayItem[$3, $1, false]; } + | static_scalar { $$ = Expr\ArrayItem[$1, null, false]; } +; + +variable: + object_access { $$ = $1; } + | base_variable { $$ = $1; } + | function_call { $$ = $1; } + | new_expr_array_deref { $$ = $1; } +; + +new_expr_array_deref: + '(' new_expr ')' '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$2, $5]; } + | new_expr_array_deref '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + /* alternative array syntax missing intentionally */ +; + +object_access: + variable_or_new_expr T_OBJECT_OPERATOR object_property + { $$ = Expr\PropertyFetch[$1, $3]; } + | variable_or_new_expr T_OBJECT_OPERATOR object_property argument_list + { $$ = Expr\MethodCall[$1, $3, $4]; } + | object_access argument_list { $$ = Expr\FuncCall[$1, $2]; } + | object_access '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | object_access '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } +; + +variable_or_new_expr: + variable { $$ = $1; } + | '(' new_expr ')' { $$ = $2; } +; + +variable_without_objects: + reference_variable { $$ = $1; } + | '$' variable_without_objects { $$ = Expr\Variable[$2]; } +; + +base_variable: + variable_without_objects { $$ = $1; } + | static_property { $$ = $1; } +; + +static_property: + class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' reference_variable + { $$ = Expr\StaticPropertyFetch[$1, $4]; } + | static_property_with_arrays { $$ = $1; } +; + +static_property_simple_name: + T_VARIABLE + { $var = parseVar($1); $$ = \is_string($var) ? Node\VarLikeIdentifier[$var] : $var; } +; + +static_property_with_arrays: + class_name_or_var T_PAAMAYIM_NEKUDOTAYIM static_property_simple_name + { $$ = Expr\StaticPropertyFetch[$1, $3]; } + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM '$' '{' expr '}' + { $$ = Expr\StaticPropertyFetch[$1, $5]; } + | static_property_with_arrays '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | static_property_with_arrays '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } +; + +reference_variable: + reference_variable '[' dim_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | reference_variable '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | plain_variable { $$ = $1; } + | '$' '{' expr '}' { $$ = Expr\Variable[$3]; } +; + +dim_offset: + /* empty */ { $$ = null; } + | expr { $$ = $1; } +; + +object_property: + identifier { $$ = $1; } + | '{' expr '}' { $$ = $2; } + | variable_without_objects { $$ = $1; } + | error { $$ = Expr\Error[]; $this->errorState = 2; } +; + +list_expr: + T_LIST '(' list_expr_elements ')' { $$ = Expr\List_[$3]; } +; + +list_expr_elements: + list_expr_elements ',' list_expr_element { push($1, $3); } + | list_expr_element { init($1); } +; + +list_expr_element: + variable { $$ = Expr\ArrayItem[$1, null, false]; } + | list_expr { $$ = Expr\ArrayItem[$1, null, false]; } + | /* empty */ { $$ = null; } +; + +array_pair_list: + /* empty */ { $$ = array(); } + | non_empty_array_pair_list optional_comma { $$ = $1; } +; + +non_empty_array_pair_list: + non_empty_array_pair_list ',' array_pair { push($1, $3); } + | array_pair { init($1); } +; + +array_pair: + expr T_DOUBLE_ARROW expr { $$ = Expr\ArrayItem[$3, $1, false]; } + | expr { $$ = Expr\ArrayItem[$1, null, false]; } + | expr T_DOUBLE_ARROW ampersand variable { $$ = Expr\ArrayItem[$4, $1, true]; } + | ampersand variable { $$ = Expr\ArrayItem[$2, null, true]; } + | T_ELLIPSIS expr { $$ = Expr\ArrayItem[$2, null, false, attributes(), true]; } +; + +encaps_list: + encaps_list encaps_var { push($1, $2); } + | encaps_list encaps_string_part { push($1, $2); } + | encaps_var { init($1); } + | encaps_string_part encaps_var { init($1, $2); } +; + +encaps_string_part: + T_ENCAPSED_AND_WHITESPACE { $$ = Scalar\EncapsedStringPart[$1]; } +; + +encaps_str_varname: + T_STRING_VARNAME { $$ = Expr\Variable[$1]; } +; + +encaps_var: + plain_variable { $$ = $1; } + | plain_variable '[' encaps_var_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | plain_variable T_OBJECT_OPERATOR identifier { $$ = Expr\PropertyFetch[$1, $3]; } + | T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Expr\Variable[$2]; } + | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Expr\Variable[$2]; } + | T_DOLLAR_OPEN_CURLY_BRACES encaps_str_varname '[' expr ']' '}' + { $$ = Expr\ArrayDimFetch[$2, $4]; } + | T_CURLY_OPEN variable '}' { $$ = $2; } +; + +encaps_var_offset: + T_STRING { $$ = Scalar\String_[$1]; } + | T_NUM_STRING { $$ = $this->parseNumString($1, attributes()); } + | plain_variable { $$ = $1; } +; + +%% diff --git a/vendor/nikic/php-parser/grammar/php7.y b/vendor/nikic/php-parser/grammar/php7.y new file mode 100644 index 000000000..eac68d095 --- /dev/null +++ b/vendor/nikic/php-parser/grammar/php7.y @@ -0,0 +1,1196 @@ +%pure_parser +%expect 2 + +%tokens + +%% + +start: + top_statement_list { $$ = $this->handleNamespaces($1); } +; + +top_statement_list_ex: + top_statement_list_ex top_statement { pushNormalizing($1, $2); } + | /* empty */ { init(); } +; + +top_statement_list: + top_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +ampersand: + T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG + | T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG +; + +reserved_non_modifiers: + T_INCLUDE | T_INCLUDE_ONCE | T_EVAL | T_REQUIRE | T_REQUIRE_ONCE | T_LOGICAL_OR | T_LOGICAL_XOR | T_LOGICAL_AND + | T_INSTANCEOF | T_NEW | T_CLONE | T_EXIT | T_IF | T_ELSEIF | T_ELSE | T_ENDIF | T_ECHO | T_DO | T_WHILE + | T_ENDWHILE | T_FOR | T_ENDFOR | T_FOREACH | T_ENDFOREACH | T_DECLARE | T_ENDDECLARE | T_AS | T_TRY | T_CATCH + | T_FINALLY | T_THROW | T_USE | T_INSTEADOF | T_GLOBAL | T_VAR | T_UNSET | T_ISSET | T_EMPTY | T_CONTINUE | T_GOTO + | T_FUNCTION | T_CONST | T_RETURN | T_PRINT | T_YIELD | T_LIST | T_SWITCH | T_ENDSWITCH | T_CASE | T_DEFAULT + | T_BREAK | T_ARRAY | T_CALLABLE | T_EXTENDS | T_IMPLEMENTS | T_NAMESPACE | T_TRAIT | T_INTERFACE | T_CLASS + | 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 + | T_MATCH | T_ENUM +; + +semi_reserved: + reserved_non_modifiers + | T_STATIC | T_ABSTRACT | T_FINAL | T_PRIVATE | T_PROTECTED | T_PUBLIC | T_READONLY +; + +identifier_maybe_reserved: + T_STRING { $$ = Node\Identifier[$1]; } + | semi_reserved { $$ = Node\Identifier[$1]; } +; + +identifier_not_reserved: + T_STRING { $$ = Node\Identifier[$1]; } +; + +reserved_non_modifiers_identifier: + reserved_non_modifiers { $$ = Node\Identifier[$1]; } +; + +namespace_declaration_name: + T_STRING { $$ = Name[$1]; } + | semi_reserved { $$ = Name[$1]; } + | T_NAME_QUALIFIED { $$ = Name[$1]; } +; + +namespace_name: + T_STRING { $$ = Name[$1]; } + | T_NAME_QUALIFIED { $$ = Name[$1]; } +; + +legacy_namespace_name: + namespace_name { $$ = $1; } + | T_NAME_FULLY_QUALIFIED { $$ = Name[substr($1, 1)]; } +; + +plain_variable: + T_VARIABLE { $$ = Expr\Variable[parseVar($1)]; } +; + +semi: + ';' { /* nothing */ } + | error { /* nothing */ } +; + +no_comma: + /* empty */ { /* nothing */ } + | ',' { $this->emitError(new Error('A trailing comma is not allowed here', attributes())); } +; + +optional_comma: + /* empty */ + | ',' +; + +attribute_decl: + class_name { $$ = Node\Attribute[$1, []]; } + | class_name argument_list { $$ = Node\Attribute[$1, $2]; } +; + +attribute_group: + attribute_decl { init($1); } + | attribute_group ',' attribute_decl { push($1, $3); } +; + +attribute: + T_ATTRIBUTE attribute_group optional_comma ']' { $$ = Node\AttributeGroup[$2]; } +; + +attributes: + attribute { init($1); } + | attributes attribute { push($1, $2); } +; + +optional_attributes: + /* empty */ { $$ = []; } + | attributes { $$ = $1; } +; + +top_statement: + statement { $$ = $1; } + | function_declaration_statement { $$ = $1; } + | class_declaration_statement { $$ = $1; } + | T_HALT_COMPILER + { $$ = Stmt\HaltCompiler[$this->lexer->handleHaltCompiler()]; } + | T_NAMESPACE namespace_declaration_name semi + { $$ = Stmt\Namespace_[$2, null]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_SEMICOLON); + $this->checkNamespace($$); } + | T_NAMESPACE namespace_declaration_name '{' top_statement_list '}' + { $$ = Stmt\Namespace_[$2, $4]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); + $this->checkNamespace($$); } + | T_NAMESPACE '{' top_statement_list '}' + { $$ = Stmt\Namespace_[null, $3]; + $$->setAttribute('kind', Stmt\Namespace_::KIND_BRACED); + $this->checkNamespace($$); } + | T_USE use_declarations semi { $$ = Stmt\Use_[$2, Stmt\Use_::TYPE_NORMAL]; } + | T_USE use_type use_declarations semi { $$ = Stmt\Use_[$3, $2]; } + | group_use_declaration semi { $$ = $1; } + | T_CONST constant_declaration_list semi { $$ = Stmt\Const_[$2]; } +; + +use_type: + T_FUNCTION { $$ = Stmt\Use_::TYPE_FUNCTION; } + | T_CONST { $$ = Stmt\Use_::TYPE_CONSTANT; } +; + +group_use_declaration: + T_USE use_type legacy_namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations '}' + { $$ = Stmt\GroupUse[$3, $6, $2]; } + | T_USE legacy_namespace_name T_NS_SEPARATOR '{' inline_use_declarations '}' + { $$ = Stmt\GroupUse[$2, $5, Stmt\Use_::TYPE_UNKNOWN]; } +; + +unprefixed_use_declarations: + non_empty_unprefixed_use_declarations optional_comma { $$ = $1; } +; + +non_empty_unprefixed_use_declarations: + non_empty_unprefixed_use_declarations ',' unprefixed_use_declaration + { push($1, $3); } + | unprefixed_use_declaration { init($1); } +; + +use_declarations: + non_empty_use_declarations no_comma { $$ = $1; } +; + +non_empty_use_declarations: + non_empty_use_declarations ',' use_declaration { push($1, $3); } + | use_declaration { init($1); } +; + +inline_use_declarations: + non_empty_inline_use_declarations optional_comma { $$ = $1; } +; + +non_empty_inline_use_declarations: + non_empty_inline_use_declarations ',' inline_use_declaration + { push($1, $3); } + | inline_use_declaration { init($1); } +; + +unprefixed_use_declaration: + namespace_name + { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } + | namespace_name T_AS identifier_not_reserved + { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } +; + +use_declaration: + legacy_namespace_name + { $$ = Stmt\UseUse[$1, null, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #1); } + | legacy_namespace_name T_AS identifier_not_reserved + { $$ = Stmt\UseUse[$1, $3, Stmt\Use_::TYPE_UNKNOWN]; $this->checkUseUse($$, #3); } +; + +inline_use_declaration: + unprefixed_use_declaration { $$ = $1; $$->type = Stmt\Use_::TYPE_NORMAL; } + | use_type unprefixed_use_declaration { $$ = $2; $$->type = $1; } +; + +constant_declaration_list: + non_empty_constant_declaration_list no_comma { $$ = $1; } +; + +non_empty_constant_declaration_list: + non_empty_constant_declaration_list ',' constant_declaration + { push($1, $3); } + | constant_declaration { init($1); } +; + +constant_declaration: + identifier_not_reserved '=' expr { $$ = Node\Const_[$1, $3]; } +; + +class_const_list: + non_empty_class_const_list no_comma { $$ = $1; } +; + +non_empty_class_const_list: + non_empty_class_const_list ',' class_const { push($1, $3); } + | class_const { init($1); } +; + +class_const: + identifier_maybe_reserved '=' expr { $$ = Node\Const_[$1, $3]; } +; + +inner_statement_list_ex: + inner_statement_list_ex inner_statement { pushNormalizing($1, $2); } + | /* empty */ { init(); } +; + +inner_statement_list: + inner_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +inner_statement: + statement { $$ = $1; } + | function_declaration_statement { $$ = $1; } + | class_declaration_statement { $$ = $1; } + | T_HALT_COMPILER + { throw new Error('__HALT_COMPILER() can only be used from the outermost scope', attributes()); } +; + +non_empty_statement: + '{' inner_statement_list '}' + { + if ($2) { + $$ = $2; prependLeadingComments($$); + } else { + makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); + if (null === $$) { $$ = array(); } + } + } + | T_IF '(' expr ')' statement elseif_list else_single + { $$ = Stmt\If_[$3, ['stmts' => toArray($5), 'elseifs' => $6, 'else' => $7]]; } + | T_IF '(' expr ')' ':' inner_statement_list new_elseif_list new_else_single T_ENDIF ';' + { $$ = Stmt\If_[$3, ['stmts' => $6, 'elseifs' => $7, 'else' => $8]]; } + | T_WHILE '(' expr ')' while_statement { $$ = Stmt\While_[$3, $5]; } + | T_DO statement T_WHILE '(' expr ')' ';' { $$ = Stmt\Do_ [$5, toArray($2)]; } + | T_FOR '(' for_expr ';' for_expr ';' for_expr ')' for_statement + { $$ = Stmt\For_[['init' => $3, 'cond' => $5, 'loop' => $7, 'stmts' => $9]]; } + | T_SWITCH '(' expr ')' switch_case_list { $$ = Stmt\Switch_[$3, $5]; } + | T_BREAK optional_expr semi { $$ = Stmt\Break_[$2]; } + | T_CONTINUE optional_expr semi { $$ = Stmt\Continue_[$2]; } + | T_RETURN optional_expr semi { $$ = Stmt\Return_[$2]; } + | T_GLOBAL global_var_list semi { $$ = Stmt\Global_[$2]; } + | T_STATIC static_var_list semi { $$ = Stmt\Static_[$2]; } + | T_ECHO expr_list_forbid_comma semi { $$ = Stmt\Echo_[$2]; } + | T_INLINE_HTML { $$ = Stmt\InlineHTML[$1]; } + | expr semi { + $e = $1; + if ($e instanceof Expr\Throw_) { + // For backwards-compatibility reasons, convert throw in statement position into + // Stmt\Throw_ rather than Stmt\Expression(Expr\Throw_). + $$ = Stmt\Throw_[$e->expr]; + } else { + $$ = Stmt\Expression[$e]; + } + } + | T_UNSET '(' variables_list ')' semi { $$ = Stmt\Unset_[$3]; } + | T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement + { $$ = Stmt\Foreach_[$3, $5[0], ['keyVar' => null, 'byRef' => $5[1], 'stmts' => $7]]; } + | T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement + { $$ = Stmt\Foreach_[$3, $7[0], ['keyVar' => $5, 'byRef' => $7[1], 'stmts' => $9]]; } + | T_FOREACH '(' expr error ')' foreach_statement + { $$ = Stmt\Foreach_[$3, new Expr\Error(stackAttributes(#4)), ['stmts' => $6]]; } + | T_DECLARE '(' declare_list ')' declare_statement { $$ = Stmt\Declare_[$3, $5]; } + | T_TRY '{' inner_statement_list '}' catches optional_finally + { $$ = Stmt\TryCatch[$3, $5, $6]; $this->checkTryCatch($$); } + | T_GOTO identifier_not_reserved semi { $$ = Stmt\Goto_[$2]; } + | identifier_not_reserved ':' { $$ = Stmt\Label[$1]; } + | error { $$ = array(); /* means: no statement */ } +; + +statement: + non_empty_statement { $$ = $1; } + | ';' + { makeNop($$, $this->startAttributeStack[#1], $this->endAttributes); + if ($$ === null) $$ = array(); /* means: no statement */ } +; + +catches: + /* empty */ { init(); } + | catches catch { push($1, $2); } +; + +name_union: + name { init($1); } + | name_union '|' name { push($1, $3); } +; + +catch: + T_CATCH '(' name_union optional_plain_variable ')' '{' inner_statement_list '}' + { $$ = Stmt\Catch_[$3, $4, $7]; } +; + +optional_finally: + /* empty */ { $$ = null; } + | T_FINALLY '{' inner_statement_list '}' { $$ = Stmt\Finally_[$3]; } +; + +variables_list: + non_empty_variables_list optional_comma { $$ = $1; } +; + +non_empty_variables_list: + variable { init($1); } + | non_empty_variables_list ',' variable { push($1, $3); } +; + +optional_ref: + /* empty */ { $$ = false; } + | ampersand { $$ = true; } +; + +optional_arg_ref: + /* empty */ { $$ = false; } + | T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG { $$ = true; } +; + +optional_ellipsis: + /* empty */ { $$ = false; } + | T_ELLIPSIS { $$ = true; } +; + +block_or_error: + '{' inner_statement_list '}' { $$ = $2; } + | error { $$ = []; } +; + +function_declaration_statement: + T_FUNCTION optional_ref identifier_not_reserved '(' parameter_list ')' optional_return_type block_or_error + { $$ = Stmt\Function_[$3, ['byRef' => $2, 'params' => $5, 'returnType' => $7, 'stmts' => $8, 'attrGroups' => []]]; } + | attributes T_FUNCTION optional_ref identifier_not_reserved '(' parameter_list ')' optional_return_type block_or_error + { $$ = Stmt\Function_[$4, ['byRef' => $3, 'params' => $6, 'returnType' => $8, 'stmts' => $9, 'attrGroups' => $1]]; } +; + +class_declaration_statement: + optional_attributes class_entry_type identifier_not_reserved extends_from implements_list '{' class_statement_list '}' + { $$ = Stmt\Class_[$3, ['type' => $2, 'extends' => $4, 'implements' => $5, 'stmts' => $7, 'attrGroups' => $1]]; + $this->checkClass($$, #3); } + | optional_attributes T_INTERFACE identifier_not_reserved interface_extends_list '{' class_statement_list '}' + { $$ = Stmt\Interface_[$3, ['extends' => $4, 'stmts' => $6, 'attrGroups' => $1]]; + $this->checkInterface($$, #3); } + | optional_attributes T_TRAIT identifier_not_reserved '{' class_statement_list '}' + { $$ = Stmt\Trait_[$3, ['stmts' => $5, 'attrGroups' => $1]]; } + | optional_attributes T_ENUM identifier_not_reserved enum_scalar_type implements_list '{' class_statement_list '}' + { $$ = Stmt\Enum_[$3, ['scalarType' => $4, 'implements' => $5, 'stmts' => $7, 'attrGroups' => $1]]; + $this->checkEnum($$, #3); } +; + +enum_scalar_type: + /* empty */ { $$ = null; } + | ':' type { $$ = $2; } + +enum_case_expr: + /* empty */ { $$ = null; } + | '=' expr { $$ = $2; } +; + +class_entry_type: + T_CLASS { $$ = 0; } + | T_ABSTRACT T_CLASS { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } + | T_FINAL T_CLASS { $$ = Stmt\Class_::MODIFIER_FINAL; } +; + +extends_from: + /* empty */ { $$ = null; } + | T_EXTENDS class_name { $$ = $2; } +; + +interface_extends_list: + /* empty */ { $$ = array(); } + | T_EXTENDS class_name_list { $$ = $2; } +; + +implements_list: + /* empty */ { $$ = array(); } + | T_IMPLEMENTS class_name_list { $$ = $2; } +; + +class_name_list: + non_empty_class_name_list no_comma { $$ = $1; } +; + +non_empty_class_name_list: + class_name { init($1); } + | non_empty_class_name_list ',' class_name { push($1, $3); } +; + +for_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDFOR ';' { $$ = $2; } +; + +foreach_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDFOREACH ';' { $$ = $2; } +; + +declare_statement: + non_empty_statement { $$ = toArray($1); } + | ';' { $$ = null; } + | ':' inner_statement_list T_ENDDECLARE ';' { $$ = $2; } +; + +declare_list: + non_empty_declare_list no_comma { $$ = $1; } +; + +non_empty_declare_list: + declare_list_element { init($1); } + | non_empty_declare_list ',' declare_list_element { push($1, $3); } +; + +declare_list_element: + identifier_not_reserved '=' expr { $$ = Stmt\DeclareDeclare[$1, $3]; } +; + +switch_case_list: + '{' case_list '}' { $$ = $2; } + | '{' ';' case_list '}' { $$ = $3; } + | ':' case_list T_ENDSWITCH ';' { $$ = $2; } + | ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; } +; + +case_list: + /* empty */ { init(); } + | case_list case { push($1, $2); } +; + +case: + T_CASE expr case_separator inner_statement_list_ex { $$ = Stmt\Case_[$2, $4]; } + | T_DEFAULT case_separator inner_statement_list_ex { $$ = Stmt\Case_[null, $3]; } +; + +case_separator: + ':' + | ';' +; + +match: + T_MATCH '(' expr ')' '{' match_arm_list '}' { $$ = Expr\Match_[$3, $6]; } +; + +match_arm_list: + /* empty */ { $$ = []; } + | non_empty_match_arm_list optional_comma { $$ = $1; } +; + +non_empty_match_arm_list: + match_arm { init($1); } + | non_empty_match_arm_list ',' match_arm { push($1, $3); } +; + +match_arm: + expr_list_allow_comma T_DOUBLE_ARROW expr { $$ = Node\MatchArm[$1, $3]; } + | T_DEFAULT optional_comma T_DOUBLE_ARROW expr { $$ = Node\MatchArm[null, $4]; } +; + +while_statement: + statement { $$ = toArray($1); } + | ':' inner_statement_list T_ENDWHILE ';' { $$ = $2; } +; + +elseif_list: + /* empty */ { init(); } + | elseif_list elseif { push($1, $2); } +; + +elseif: + T_ELSEIF '(' expr ')' statement { $$ = Stmt\ElseIf_[$3, toArray($5)]; } +; + +new_elseif_list: + /* empty */ { init(); } + | new_elseif_list new_elseif { push($1, $2); } +; + +new_elseif: + T_ELSEIF '(' expr ')' ':' inner_statement_list { $$ = Stmt\ElseIf_[$3, $6]; } +; + +else_single: + /* empty */ { $$ = null; } + | T_ELSE statement { $$ = Stmt\Else_[toArray($2)]; } +; + +new_else_single: + /* empty */ { $$ = null; } + | T_ELSE ':' inner_statement_list { $$ = Stmt\Else_[$3]; } +; + +foreach_variable: + variable { $$ = array($1, false); } + | ampersand variable { $$ = array($2, true); } + | list_expr { $$ = array($1, false); } + | array_short_syntax { $$ = array($1, false); } +; + +parameter_list: + non_empty_parameter_list optional_comma { $$ = $1; } + | /* empty */ { $$ = array(); } +; + +non_empty_parameter_list: + parameter { init($1); } + | non_empty_parameter_list ',' parameter { push($1, $3); } +; + +optional_property_modifiers: + /* empty */ { $$ = 0; } + | optional_property_modifiers property_modifier + { $this->checkModifier($1, $2, #2); $$ = $1 | $2; } +; + +property_modifier: + T_PUBLIC { $$ = Stmt\Class_::MODIFIER_PUBLIC; } + | T_PROTECTED { $$ = Stmt\Class_::MODIFIER_PROTECTED; } + | T_PRIVATE { $$ = Stmt\Class_::MODIFIER_PRIVATE; } + | T_READONLY { $$ = Stmt\Class_::MODIFIER_READONLY; } +; + +parameter: + optional_attributes optional_property_modifiers optional_type_without_static + optional_arg_ref optional_ellipsis plain_variable + { $$ = new Node\Param($6, null, $3, $4, $5, attributes(), $2, $1); + $this->checkParam($$); } + | optional_attributes optional_property_modifiers optional_type_without_static + optional_arg_ref optional_ellipsis plain_variable '=' expr + { $$ = new Node\Param($6, $8, $3, $4, $5, attributes(), $2, $1); + $this->checkParam($$); } + | optional_attributes optional_property_modifiers optional_type_without_static + optional_arg_ref optional_ellipsis error + { $$ = new Node\Param(Expr\Error[], null, $3, $4, $5, attributes(), $2, $1); } +; + +type_expr: + type { $$ = $1; } + | '?' type { $$ = Node\NullableType[$2]; } + | union_type { $$ = Node\UnionType[$1]; } + | intersection_type { $$ = Node\IntersectionType[$1]; } +; + +type: + type_without_static { $$ = $1; } + | T_STATIC { $$ = Node\Name['static']; } +; + +type_without_static: + name { $$ = $this->handleBuiltinTypes($1); } + | T_ARRAY { $$ = Node\Identifier['array']; } + | T_CALLABLE { $$ = Node\Identifier['callable']; } +; + +union_type: + type '|' type { init($1, $3); } + | union_type '|' type { push($1, $3); } +; + +union_type_without_static: + type_without_static '|' type_without_static { init($1, $3); } + | union_type_without_static '|' type_without_static { push($1, $3); } +; + +intersection_type: + type T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type { init($1, $3); } + | intersection_type T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type + { push($1, $3); } +; + +intersection_type_without_static: + type_without_static T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type_without_static + { init($1, $3); } + | intersection_type_without_static T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG type_without_static + { push($1, $3); } +; + +type_expr_without_static: + type_without_static { $$ = $1; } + | '?' type_without_static { $$ = Node\NullableType[$2]; } + | union_type_without_static { $$ = Node\UnionType[$1]; } + | intersection_type_without_static { $$ = Node\IntersectionType[$1]; } +; + +optional_type_without_static: + /* empty */ { $$ = null; } + | type_expr_without_static { $$ = $1; } +; + +optional_return_type: + /* empty */ { $$ = null; } + | ':' type_expr { $$ = $2; } + | ':' error { $$ = null; } +; + +argument_list: + '(' ')' { $$ = array(); } + | '(' non_empty_argument_list optional_comma ')' { $$ = $2; } + | '(' variadic_placeholder ')' { init($2); } +; + +variadic_placeholder: + T_ELLIPSIS { $$ = Node\VariadicPlaceholder[]; } +; + +non_empty_argument_list: + argument { init($1); } + | non_empty_argument_list ',' argument { push($1, $3); } +; + +argument: + expr { $$ = Node\Arg[$1, false, false]; } + | ampersand variable { $$ = Node\Arg[$2, true, false]; } + | T_ELLIPSIS expr { $$ = Node\Arg[$2, false, true]; } + | identifier_maybe_reserved ':' expr + { $$ = new Node\Arg($3, false, false, attributes(), $1); } +; + +global_var_list: + non_empty_global_var_list no_comma { $$ = $1; } +; + +non_empty_global_var_list: + non_empty_global_var_list ',' global_var { push($1, $3); } + | global_var { init($1); } +; + +global_var: + simple_variable { $$ = $1; } +; + +static_var_list: + non_empty_static_var_list no_comma { $$ = $1; } +; + +non_empty_static_var_list: + non_empty_static_var_list ',' static_var { push($1, $3); } + | static_var { init($1); } +; + +static_var: + plain_variable { $$ = Stmt\StaticVar[$1, null]; } + | plain_variable '=' expr { $$ = Stmt\StaticVar[$1, $3]; } +; + +class_statement_list_ex: + class_statement_list_ex class_statement { if ($2 !== null) { push($1, $2); } } + | /* empty */ { init(); } +; + +class_statement_list: + class_statement_list_ex + { makeZeroLengthNop($nop, $this->lookaheadStartAttributes); + if ($nop !== null) { $1[] = $nop; } $$ = $1; } +; + +class_statement: + optional_attributes variable_modifiers optional_type_without_static property_declaration_list semi + { $$ = new Stmt\Property($2, $4, attributes(), $3, $1); + $this->checkProperty($$, #2); } + | optional_attributes method_modifiers T_CONST class_const_list semi + { $$ = new Stmt\ClassConst($4, $2, attributes(), $1); + $this->checkClassConst($$, #2); } + | optional_attributes method_modifiers T_FUNCTION optional_ref identifier_maybe_reserved '(' parameter_list ')' + optional_return_type method_body + { $$ = Stmt\ClassMethod[$5, ['type' => $2, 'byRef' => $4, 'params' => $7, 'returnType' => $9, 'stmts' => $10, 'attrGroups' => $1]]; + $this->checkClassMethod($$, #2); } + | T_USE class_name_list trait_adaptations { $$ = Stmt\TraitUse[$2, $3]; } + | optional_attributes T_CASE identifier_maybe_reserved enum_case_expr semi + { $$ = Stmt\EnumCase[$3, $4, $1]; } + | error { $$ = null; /* will be skipped */ } +; + +trait_adaptations: + ';' { $$ = array(); } + | '{' trait_adaptation_list '}' { $$ = $2; } +; + +trait_adaptation_list: + /* empty */ { init(); } + | trait_adaptation_list trait_adaptation { push($1, $2); } +; + +trait_adaptation: + trait_method_reference_fully_qualified T_INSTEADOF class_name_list ';' + { $$ = Stmt\TraitUseAdaptation\Precedence[$1[0], $1[1], $3]; } + | trait_method_reference T_AS member_modifier identifier_maybe_reserved ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, $4]; } + | trait_method_reference T_AS member_modifier ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], $3, null]; } + | trait_method_reference T_AS identifier_not_reserved ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } + | trait_method_reference T_AS reserved_non_modifiers_identifier ';' + { $$ = Stmt\TraitUseAdaptation\Alias[$1[0], $1[1], null, $3]; } +; + +trait_method_reference_fully_qualified: + name T_PAAMAYIM_NEKUDOTAYIM identifier_maybe_reserved { $$ = array($1, $3); } +; +trait_method_reference: + trait_method_reference_fully_qualified { $$ = $1; } + | identifier_maybe_reserved { $$ = array(null, $1); } +; + +method_body: + ';' /* abstract method */ { $$ = null; } + | block_or_error { $$ = $1; } +; + +variable_modifiers: + non_empty_member_modifiers { $$ = $1; } + | T_VAR { $$ = 0; } +; + +method_modifiers: + /* empty */ { $$ = 0; } + | non_empty_member_modifiers { $$ = $1; } +; + +non_empty_member_modifiers: + member_modifier { $$ = $1; } + | non_empty_member_modifiers member_modifier { $this->checkModifier($1, $2, #2); $$ = $1 | $2; } +; + +member_modifier: + T_PUBLIC { $$ = Stmt\Class_::MODIFIER_PUBLIC; } + | T_PROTECTED { $$ = Stmt\Class_::MODIFIER_PROTECTED; } + | T_PRIVATE { $$ = Stmt\Class_::MODIFIER_PRIVATE; } + | T_STATIC { $$ = Stmt\Class_::MODIFIER_STATIC; } + | T_ABSTRACT { $$ = Stmt\Class_::MODIFIER_ABSTRACT; } + | T_FINAL { $$ = Stmt\Class_::MODIFIER_FINAL; } + | T_READONLY { $$ = Stmt\Class_::MODIFIER_READONLY; } +; + +property_declaration_list: + non_empty_property_declaration_list no_comma { $$ = $1; } +; + +non_empty_property_declaration_list: + property_declaration { init($1); } + | non_empty_property_declaration_list ',' property_declaration + { push($1, $3); } +; + +property_decl_name: + T_VARIABLE { $$ = Node\VarLikeIdentifier[parseVar($1)]; } +; + +property_declaration: + property_decl_name { $$ = Stmt\PropertyProperty[$1, null]; } + | property_decl_name '=' expr { $$ = Stmt\PropertyProperty[$1, $3]; } +; + +expr_list_forbid_comma: + non_empty_expr_list no_comma { $$ = $1; } +; + +expr_list_allow_comma: + non_empty_expr_list optional_comma { $$ = $1; } +; + +non_empty_expr_list: + non_empty_expr_list ',' expr { push($1, $3); } + | expr { init($1); } +; + +for_expr: + /* empty */ { $$ = array(); } + | expr_list_forbid_comma { $$ = $1; } +; + +expr: + variable { $$ = $1; } + | list_expr '=' expr { $$ = Expr\Assign[$1, $3]; } + | array_short_syntax '=' expr { $$ = Expr\Assign[$1, $3]; } + | variable '=' expr { $$ = Expr\Assign[$1, $3]; } + | variable '=' ampersand variable { $$ = Expr\AssignRef[$1, $4]; } + | new_expr { $$ = $1; } + | match { $$ = $1; } + | T_CLONE expr { $$ = Expr\Clone_[$2]; } + | variable T_PLUS_EQUAL expr { $$ = Expr\AssignOp\Plus [$1, $3]; } + | variable T_MINUS_EQUAL expr { $$ = Expr\AssignOp\Minus [$1, $3]; } + | variable T_MUL_EQUAL expr { $$ = Expr\AssignOp\Mul [$1, $3]; } + | variable T_DIV_EQUAL expr { $$ = Expr\AssignOp\Div [$1, $3]; } + | variable T_CONCAT_EQUAL expr { $$ = Expr\AssignOp\Concat [$1, $3]; } + | variable T_MOD_EQUAL expr { $$ = Expr\AssignOp\Mod [$1, $3]; } + | variable T_AND_EQUAL expr { $$ = Expr\AssignOp\BitwiseAnd[$1, $3]; } + | variable T_OR_EQUAL expr { $$ = Expr\AssignOp\BitwiseOr [$1, $3]; } + | variable T_XOR_EQUAL expr { $$ = Expr\AssignOp\BitwiseXor[$1, $3]; } + | variable T_SL_EQUAL expr { $$ = Expr\AssignOp\ShiftLeft [$1, $3]; } + | variable T_SR_EQUAL expr { $$ = Expr\AssignOp\ShiftRight[$1, $3]; } + | variable T_POW_EQUAL expr { $$ = Expr\AssignOp\Pow [$1, $3]; } + | variable T_COALESCE_EQUAL expr { $$ = Expr\AssignOp\Coalesce [$1, $3]; } + | variable T_INC { $$ = Expr\PostInc[$1]; } + | T_INC variable { $$ = Expr\PreInc [$2]; } + | variable T_DEC { $$ = Expr\PostDec[$1]; } + | T_DEC variable { $$ = Expr\PreDec [$2]; } + | expr T_BOOLEAN_OR expr { $$ = Expr\BinaryOp\BooleanOr [$1, $3]; } + | expr T_BOOLEAN_AND expr { $$ = Expr\BinaryOp\BooleanAnd[$1, $3]; } + | expr T_LOGICAL_OR expr { $$ = Expr\BinaryOp\LogicalOr [$1, $3]; } + | expr T_LOGICAL_AND expr { $$ = Expr\BinaryOp\LogicalAnd[$1, $3]; } + | expr T_LOGICAL_XOR expr { $$ = Expr\BinaryOp\LogicalXor[$1, $3]; } + | expr '|' expr { $$ = Expr\BinaryOp\BitwiseOr [$1, $3]; } + | expr T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | expr T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG expr { $$ = Expr\BinaryOp\BitwiseAnd[$1, $3]; } + | expr '^' expr { $$ = Expr\BinaryOp\BitwiseXor[$1, $3]; } + | expr '.' expr { $$ = Expr\BinaryOp\Concat [$1, $3]; } + | expr '+' expr { $$ = Expr\BinaryOp\Plus [$1, $3]; } + | expr '-' expr { $$ = Expr\BinaryOp\Minus [$1, $3]; } + | expr '*' expr { $$ = Expr\BinaryOp\Mul [$1, $3]; } + | expr '/' expr { $$ = Expr\BinaryOp\Div [$1, $3]; } + | expr '%' expr { $$ = Expr\BinaryOp\Mod [$1, $3]; } + | expr T_SL expr { $$ = Expr\BinaryOp\ShiftLeft [$1, $3]; } + | expr T_SR expr { $$ = Expr\BinaryOp\ShiftRight[$1, $3]; } + | expr T_POW expr { $$ = Expr\BinaryOp\Pow [$1, $3]; } + | '+' expr %prec T_INC { $$ = Expr\UnaryPlus [$2]; } + | '-' expr %prec T_INC { $$ = Expr\UnaryMinus[$2]; } + | '!' expr { $$ = Expr\BooleanNot[$2]; } + | '~' expr { $$ = Expr\BitwiseNot[$2]; } + | expr T_IS_IDENTICAL expr { $$ = Expr\BinaryOp\Identical [$1, $3]; } + | expr T_IS_NOT_IDENTICAL expr { $$ = Expr\BinaryOp\NotIdentical [$1, $3]; } + | expr T_IS_EQUAL expr { $$ = Expr\BinaryOp\Equal [$1, $3]; } + | expr T_IS_NOT_EQUAL expr { $$ = Expr\BinaryOp\NotEqual [$1, $3]; } + | expr T_SPACESHIP expr { $$ = Expr\BinaryOp\Spaceship [$1, $3]; } + | expr '<' expr { $$ = Expr\BinaryOp\Smaller [$1, $3]; } + | expr T_IS_SMALLER_OR_EQUAL expr { $$ = Expr\BinaryOp\SmallerOrEqual[$1, $3]; } + | expr '>' expr { $$ = Expr\BinaryOp\Greater [$1, $3]; } + | expr T_IS_GREATER_OR_EQUAL expr { $$ = Expr\BinaryOp\GreaterOrEqual[$1, $3]; } + | expr T_INSTANCEOF class_name_reference { $$ = Expr\Instanceof_[$1, $3]; } + | '(' expr ')' { $$ = $2; } + | expr '?' expr ':' expr { $$ = Expr\Ternary[$1, $3, $5]; } + | expr '?' ':' expr { $$ = Expr\Ternary[$1, null, $4]; } + | expr T_COALESCE expr { $$ = Expr\BinaryOp\Coalesce[$1, $3]; } + | T_ISSET '(' expr_list_allow_comma ')' { $$ = Expr\Isset_[$3]; } + | T_EMPTY '(' expr ')' { $$ = Expr\Empty_[$3]; } + | T_INCLUDE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE]; } + | T_INCLUDE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_INCLUDE_ONCE]; } + | T_EVAL '(' expr ')' { $$ = Expr\Eval_[$3]; } + | T_REQUIRE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE]; } + | T_REQUIRE_ONCE expr { $$ = Expr\Include_[$2, Expr\Include_::TYPE_REQUIRE_ONCE]; } + | T_INT_CAST expr { $$ = Expr\Cast\Int_ [$2]; } + | T_DOUBLE_CAST expr + { $attrs = attributes(); + $attrs['kind'] = $this->getFloatCastKind($1); + $$ = new Expr\Cast\Double($2, $attrs); } + | T_STRING_CAST expr { $$ = Expr\Cast\String_ [$2]; } + | T_ARRAY_CAST expr { $$ = Expr\Cast\Array_ [$2]; } + | T_OBJECT_CAST expr { $$ = Expr\Cast\Object_ [$2]; } + | T_BOOL_CAST expr { $$ = Expr\Cast\Bool_ [$2]; } + | T_UNSET_CAST expr { $$ = Expr\Cast\Unset_ [$2]; } + | T_EXIT exit_expr + { $attrs = attributes(); + $attrs['kind'] = strtolower($1) === 'exit' ? Expr\Exit_::KIND_EXIT : Expr\Exit_::KIND_DIE; + $$ = new Expr\Exit_($2, $attrs); } + | '@' expr { $$ = Expr\ErrorSuppress[$2]; } + | scalar { $$ = $1; } + | '`' backticks_expr '`' { $$ = Expr\ShellExec[$2]; } + | T_PRINT expr { $$ = Expr\Print_[$2]; } + | T_YIELD { $$ = Expr\Yield_[null, null]; } + | T_YIELD expr { $$ = Expr\Yield_[$2, null]; } + | T_YIELD expr T_DOUBLE_ARROW expr { $$ = Expr\Yield_[$4, $2]; } + | T_YIELD_FROM expr { $$ = Expr\YieldFrom[$2]; } + | T_THROW expr { $$ = Expr\Throw_[$2]; } + + | T_FN optional_ref '(' parameter_list ')' optional_return_type T_DOUBLE_ARROW expr %prec T_THROW + { $$ = Expr\ArrowFunction[['static' => false, 'byRef' => $2, 'params' => $4, 'returnType' => $6, 'expr' => $8, 'attrGroups' => []]]; } + | T_STATIC T_FN optional_ref '(' parameter_list ')' optional_return_type T_DOUBLE_ARROW expr %prec T_THROW + { $$ = Expr\ArrowFunction[['static' => true, 'byRef' => $3, 'params' => $5, 'returnType' => $7, 'expr' => $9, 'attrGroups' => []]]; } + | T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type block_or_error + { $$ = Expr\Closure[['static' => false, 'byRef' => $2, 'params' => $4, 'uses' => $6, 'returnType' => $7, 'stmts' => $8, 'attrGroups' => []]]; } + | T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type block_or_error + { $$ = Expr\Closure[['static' => true, 'byRef' => $3, 'params' => $5, 'uses' => $7, 'returnType' => $8, 'stmts' => $9, 'attrGroups' => []]]; } + + | attributes T_FN optional_ref '(' parameter_list ')' optional_return_type T_DOUBLE_ARROW expr %prec T_THROW + { $$ = Expr\ArrowFunction[['static' => false, 'byRef' => $3, 'params' => $5, 'returnType' => $7, 'expr' => $9, 'attrGroups' => $1]]; } + | attributes T_STATIC T_FN optional_ref '(' parameter_list ')' optional_return_type T_DOUBLE_ARROW expr %prec T_THROW + { $$ = Expr\ArrowFunction[['static' => true, 'byRef' => $4, 'params' => $6, 'returnType' => $8, 'expr' => $10, 'attrGroups' => $1]]; } + | attributes T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type block_or_error + { $$ = Expr\Closure[['static' => false, 'byRef' => $3, 'params' => $5, 'uses' => $7, 'returnType' => $8, 'stmts' => $9, 'attrGroups' => $1]]; } + | attributes T_STATIC T_FUNCTION optional_ref '(' parameter_list ')' lexical_vars optional_return_type block_or_error + { $$ = Expr\Closure[['static' => true, 'byRef' => $4, 'params' => $6, 'uses' => $8, 'returnType' => $9, 'stmts' => $10, 'attrGroups' => $1]]; } +; + +anonymous_class: + optional_attributes T_CLASS ctor_arguments extends_from implements_list '{' class_statement_list '}' + { $$ = array(Stmt\Class_[null, ['type' => 0, 'extends' => $4, 'implements' => $5, 'stmts' => $7, 'attrGroups' => $1]], $3); + $this->checkClass($$[0], -1); } +; + +new_expr: + T_NEW class_name_reference ctor_arguments { $$ = Expr\New_[$2, $3]; } + | T_NEW anonymous_class + { list($class, $ctorArgs) = $2; $$ = Expr\New_[$class, $ctorArgs]; } +; + +lexical_vars: + /* empty */ { $$ = array(); } + | T_USE '(' lexical_var_list ')' { $$ = $3; } +; + +lexical_var_list: + non_empty_lexical_var_list optional_comma { $$ = $1; } +; + +non_empty_lexical_var_list: + lexical_var { init($1); } + | non_empty_lexical_var_list ',' lexical_var { push($1, $3); } +; + +lexical_var: + optional_ref plain_variable { $$ = Expr\ClosureUse[$2, $1]; } +; + +function_call: + name argument_list { $$ = Expr\FuncCall[$1, $2]; } + | callable_expr argument_list { $$ = Expr\FuncCall[$1, $2]; } + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM member_name argument_list + { $$ = Expr\StaticCall[$1, $3, $4]; } +; + +class_name: + T_STATIC { $$ = Name[$1]; } + | name { $$ = $1; } +; + +name: + T_STRING { $$ = Name[$1]; } + | T_NAME_QUALIFIED { $$ = Name[$1]; } + | T_NAME_FULLY_QUALIFIED { $$ = Name\FullyQualified[substr($1, 1)]; } + | T_NAME_RELATIVE { $$ = Name\Relative[substr($1, 10)]; } +; + +class_name_reference: + class_name { $$ = $1; } + | new_variable { $$ = $1; } + | '(' expr ')' { $$ = $2; } + | error { $$ = Expr\Error[]; $this->errorState = 2; } +; + +class_name_or_var: + class_name { $$ = $1; } + | fully_dereferencable { $$ = $1; } +; + +exit_expr: + /* empty */ { $$ = null; } + | '(' optional_expr ')' { $$ = $2; } +; + +backticks_expr: + /* empty */ { $$ = array(); } + | T_ENCAPSED_AND_WHITESPACE + { $$ = array(Scalar\EncapsedStringPart[Scalar\String_::parseEscapeSequences($1, '`')]); } + | encaps_list { parseEncapsed($1, '`', true); $$ = $1; } +; + +ctor_arguments: + /* empty */ { $$ = array(); } + | argument_list { $$ = $1; } +; + +constant: + name { $$ = Expr\ConstFetch[$1]; } + | T_LINE { $$ = Scalar\MagicConst\Line[]; } + | T_FILE { $$ = Scalar\MagicConst\File[]; } + | T_DIR { $$ = Scalar\MagicConst\Dir[]; } + | T_CLASS_C { $$ = Scalar\MagicConst\Class_[]; } + | T_TRAIT_C { $$ = Scalar\MagicConst\Trait_[]; } + | T_METHOD_C { $$ = Scalar\MagicConst\Method[]; } + | T_FUNC_C { $$ = Scalar\MagicConst\Function_[]; } + | T_NS_C { $$ = Scalar\MagicConst\Namespace_[]; } +; + +class_constant: + class_name_or_var T_PAAMAYIM_NEKUDOTAYIM identifier_maybe_reserved + { $$ = Expr\ClassConstFetch[$1, $3]; } + /* We interpret an isolated FOO:: as an unfinished class constant fetch. It could also be + an unfinished static property fetch or unfinished scoped call. */ + | class_name_or_var T_PAAMAYIM_NEKUDOTAYIM error + { $$ = Expr\ClassConstFetch[$1, new Expr\Error(stackAttributes(#3))]; $this->errorState = 2; } +; + +array_short_syntax: + '[' array_pair_list ']' + { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_SHORT; + $$ = new Expr\Array_($2, $attrs); } +; + +dereferencable_scalar: + T_ARRAY '(' array_pair_list ')' + { $attrs = attributes(); $attrs['kind'] = Expr\Array_::KIND_LONG; + $$ = new Expr\Array_($3, $attrs); } + | array_short_syntax { $$ = $1; } + | T_CONSTANT_ENCAPSED_STRING + { $attrs = attributes(); $attrs['kind'] = strKind($1); + $$ = new Scalar\String_(Scalar\String_::parse($1), $attrs); } + | '"' encaps_list '"' + { $attrs = attributes(); $attrs['kind'] = Scalar\String_::KIND_DOUBLE_QUOTED; + parseEncapsed($2, '"', true); $$ = new Scalar\Encapsed($2, $attrs); } +; + +scalar: + T_LNUMBER { $$ = $this->parseLNumber($1, attributes()); } + | T_DNUMBER { $$ = Scalar\DNumber[Scalar\DNumber::parse($1)]; } + | dereferencable_scalar { $$ = $1; } + | constant { $$ = $1; } + | class_constant { $$ = $1; } + | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC + { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), true); } + | T_START_HEREDOC T_END_HEREDOC + { $$ = $this->parseDocString($1, '', $2, attributes(), stackAttributes(#2), true); } + | T_START_HEREDOC encaps_list T_END_HEREDOC + { $$ = $this->parseDocString($1, $2, $3, attributes(), stackAttributes(#3), true); } +; + +optional_expr: + /* empty */ { $$ = null; } + | expr { $$ = $1; } +; + +fully_dereferencable: + variable { $$ = $1; } + | '(' expr ')' { $$ = $2; } + | dereferencable_scalar { $$ = $1; } + | class_constant { $$ = $1; } +; + +array_object_dereferencable: + fully_dereferencable { $$ = $1; } + | constant { $$ = $1; } +; + +callable_expr: + callable_variable { $$ = $1; } + | '(' expr ')' { $$ = $2; } + | dereferencable_scalar { $$ = $1; } +; + +callable_variable: + simple_variable { $$ = $1; } + | array_object_dereferencable '[' optional_expr ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | array_object_dereferencable '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | function_call { $$ = $1; } + | array_object_dereferencable T_OBJECT_OPERATOR property_name argument_list + { $$ = Expr\MethodCall[$1, $3, $4]; } + | array_object_dereferencable T_NULLSAFE_OBJECT_OPERATOR property_name argument_list + { $$ = Expr\NullsafeMethodCall[$1, $3, $4]; } +; + +optional_plain_variable: + /* empty */ { $$ = null; } + | plain_variable { $$ = $1; } +; + +variable: + callable_variable { $$ = $1; } + | static_member { $$ = $1; } + | array_object_dereferencable T_OBJECT_OPERATOR property_name + { $$ = Expr\PropertyFetch[$1, $3]; } + | array_object_dereferencable T_NULLSAFE_OBJECT_OPERATOR property_name + { $$ = Expr\NullsafePropertyFetch[$1, $3]; } +; + +simple_variable: + plain_variable { $$ = $1; } + | '$' '{' expr '}' { $$ = Expr\Variable[$3]; } + | '$' simple_variable { $$ = Expr\Variable[$2]; } + | '$' error { $$ = Expr\Variable[Expr\Error[]]; $this->errorState = 2; } +; + +static_member_prop_name: + simple_variable + { $var = $1->name; $$ = \is_string($var) ? Node\VarLikeIdentifier[$var] : $var; } +; + +static_member: + class_name_or_var T_PAAMAYIM_NEKUDOTAYIM static_member_prop_name + { $$ = Expr\StaticPropertyFetch[$1, $3]; } +; + +new_variable: + simple_variable { $$ = $1; } + | new_variable '[' optional_expr ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | new_variable '{' expr '}' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | new_variable T_OBJECT_OPERATOR property_name { $$ = Expr\PropertyFetch[$1, $3]; } + | new_variable T_NULLSAFE_OBJECT_OPERATOR property_name { $$ = Expr\NullsafePropertyFetch[$1, $3]; } + | class_name T_PAAMAYIM_NEKUDOTAYIM static_member_prop_name + { $$ = Expr\StaticPropertyFetch[$1, $3]; } + | new_variable T_PAAMAYIM_NEKUDOTAYIM static_member_prop_name + { $$ = Expr\StaticPropertyFetch[$1, $3]; } +; + +member_name: + identifier_maybe_reserved { $$ = $1; } + | '{' expr '}' { $$ = $2; } + | simple_variable { $$ = $1; } +; + +property_name: + identifier_not_reserved { $$ = $1; } + | '{' expr '}' { $$ = $2; } + | simple_variable { $$ = $1; } + | error { $$ = Expr\Error[]; $this->errorState = 2; } +; + +list_expr: + T_LIST '(' inner_array_pair_list ')' { $$ = Expr\List_[$3]; } +; + +array_pair_list: + inner_array_pair_list + { $$ = $1; $end = count($$)-1; if ($$[$end] === null) array_pop($$); } +; + +comma_or_error: + ',' + | error + { /* do nothing -- prevent default action of $$=$1. See #551. */ } +; + +inner_array_pair_list: + inner_array_pair_list comma_or_error array_pair { push($1, $3); } + | array_pair { init($1); } +; + +array_pair: + expr { $$ = Expr\ArrayItem[$1, null, false]; } + | ampersand variable { $$ = Expr\ArrayItem[$2, null, true]; } + | list_expr { $$ = Expr\ArrayItem[$1, null, false]; } + | expr T_DOUBLE_ARROW expr { $$ = Expr\ArrayItem[$3, $1, false]; } + | expr T_DOUBLE_ARROW ampersand variable { $$ = Expr\ArrayItem[$4, $1, true]; } + | expr T_DOUBLE_ARROW list_expr { $$ = Expr\ArrayItem[$3, $1, false]; } + | T_ELLIPSIS expr { $$ = Expr\ArrayItem[$2, null, false, attributes(), true]; } + | /* empty */ { $$ = null; } +; + +encaps_list: + encaps_list encaps_var { push($1, $2); } + | encaps_list encaps_string_part { push($1, $2); } + | encaps_var { init($1); } + | encaps_string_part encaps_var { init($1, $2); } +; + +encaps_string_part: + T_ENCAPSED_AND_WHITESPACE { $$ = Scalar\EncapsedStringPart[$1]; } +; + +encaps_str_varname: + T_STRING_VARNAME { $$ = Expr\Variable[$1]; } +; + +encaps_var: + plain_variable { $$ = $1; } + | plain_variable '[' encaps_var_offset ']' { $$ = Expr\ArrayDimFetch[$1, $3]; } + | plain_variable T_OBJECT_OPERATOR identifier_not_reserved + { $$ = Expr\PropertyFetch[$1, $3]; } + | plain_variable T_NULLSAFE_OBJECT_OPERATOR identifier_not_reserved + { $$ = Expr\NullsafePropertyFetch[$1, $3]; } + | T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Expr\Variable[$2]; } + | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Expr\Variable[$2]; } + | T_DOLLAR_OPEN_CURLY_BRACES encaps_str_varname '[' expr ']' '}' + { $$ = Expr\ArrayDimFetch[$2, $4]; } + | T_CURLY_OPEN variable '}' { $$ = $2; } +; + +encaps_var_offset: + T_STRING { $$ = Scalar\String_[$1]; } + | T_NUM_STRING { $$ = $this->parseNumString($1, attributes()); } + | '-' T_NUM_STRING { $$ = $this->parseNumString('-' . $2, attributes()); } + | plain_variable { $$ = $1; } +; + +%% diff --git a/vendor/nikic/php-parser/grammar/phpyLang.php b/vendor/nikic/php-parser/grammar/phpyLang.php new file mode 100644 index 000000000..1a9808dcf --- /dev/null +++ b/vendor/nikic/php-parser/grammar/phpyLang.php @@ -0,0 +1,192 @@ +<?php + +/////////////////////////////// +/// Utility regex constants /// +/////////////////////////////// + +const LIB = '(?(DEFINE) + (?<singleQuotedString>\'[^\\\\\']*+(?:\\\\.[^\\\\\']*+)*+\') + (?<doubleQuotedString>"[^\\\\"]*+(?:\\\\.[^\\\\"]*+)*+") + (?<string>(?&singleQuotedString)|(?&doubleQuotedString)) + (?<comment>/\*[^*]*+(?:\*(?!/)[^*]*+)*+\*/) + (?<code>\{[^\'"/{}]*+(?:(?:(?&string)|(?&comment)|(?&code)|/)[^\'"/{}]*+)*+}) +)'; + +const PARAMS = '\[(?<params>[^[\]]*+(?:\[(?¶ms)\][^[\]]*+)*+)\]'; +const ARGS = '\((?<args>[^()]*+(?:\((?&args)\)[^()]*+)*+)\)'; + +/////////////////////////////// +/// Preprocessing functions /// +/////////////////////////////// + +function preprocessGrammar($code) { + $code = resolveNodes($code); + $code = resolveMacros($code); + $code = resolveStackAccess($code); + + return $code; +} + +function resolveNodes($code) { + return preg_replace_callback( + '~\b(?<name>[A-Z][a-zA-Z_\\\\]++)\s*' . PARAMS . '~', + function($matches) { + // recurse + $matches['params'] = resolveNodes($matches['params']); + + $params = magicSplit( + '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,', + $matches['params'] + ); + + $paramCode = ''; + foreach ($params as $param) { + $paramCode .= $param . ', '; + } + + return 'new ' . $matches['name'] . '(' . $paramCode . 'attributes())'; + }, + $code + ); +} + +function resolveMacros($code) { + return preg_replace_callback( + '~\b(?<!::|->)(?!array\()(?<name>[a-z][A-Za-z]++)' . ARGS . '~', + function($matches) { + // recurse + $matches['args'] = resolveMacros($matches['args']); + + $name = $matches['name']; + $args = magicSplit( + '(?:' . PARAMS . '|' . ARGS . ')(*SKIP)(*FAIL)|,', + $matches['args'] + ); + + if ('attributes' === $name) { + assertArgs(0, $args, $name); + return '$this->startAttributeStack[#1] + $this->endAttributes'; + } + + if ('stackAttributes' === $name) { + assertArgs(1, $args, $name); + return '$this->startAttributeStack[' . $args[0] . ']' + . ' + $this->endAttributeStack[' . $args[0] . ']'; + } + + if ('init' === $name) { + return '$$ = array(' . implode(', ', $args) . ')'; + } + + if ('push' === $name) { + assertArgs(2, $args, $name); + + return $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0]; + } + + if ('pushNormalizing' === $name) { + assertArgs(2, $args, $name); + + return 'if (is_array(' . $args[1] . ')) { $$ = array_merge(' . $args[0] . ', ' . $args[1] . '); }' + . ' else { ' . $args[0] . '[] = ' . $args[1] . '; $$ = ' . $args[0] . '; }'; + } + + if ('toArray' == $name) { + assertArgs(1, $args, $name); + + return 'is_array(' . $args[0] . ') ? ' . $args[0] . ' : array(' . $args[0] . ')'; + } + + if ('parseVar' === $name) { + assertArgs(1, $args, $name); + + return 'substr(' . $args[0] . ', 1)'; + } + + if ('parseEncapsed' === $name) { + assertArgs(3, $args, $name); + + return 'foreach (' . $args[0] . ' as $s) { if ($s instanceof Node\Scalar\EncapsedStringPart) {' + . ' $s->value = Node\Scalar\String_::parseEscapeSequences($s->value, ' . $args[1] . ', ' . $args[2] . '); } }'; + } + + if ('makeNop' === $name) { + assertArgs(3, $args, $name); + + return '$startAttributes = ' . $args[1] . ';' + . ' if (isset($startAttributes[\'comments\']))' + . ' { ' . $args[0] . ' = new Stmt\Nop($startAttributes + ' . $args[2] . '); }' + . ' else { ' . $args[0] . ' = null; }'; + } + + if ('makeZeroLengthNop' == $name) { + assertArgs(2, $args, $name); + + return '$startAttributes = ' . $args[1] . ';' + . ' if (isset($startAttributes[\'comments\']))' + . ' { ' . $args[0] . ' = new Stmt\Nop($this->createCommentNopAttributes($startAttributes[\'comments\'])); }' + . ' else { ' . $args[0] . ' = null; }'; + } + + if ('strKind' === $name) { + assertArgs(1, $args, $name); + + return '(' . $args[0] . '[0] === "\'" || (' . $args[0] . '[1] === "\'" && ' + . '(' . $args[0] . '[0] === \'b\' || ' . $args[0] . '[0] === \'B\')) ' + . '? Scalar\String_::KIND_SINGLE_QUOTED : Scalar\String_::KIND_DOUBLE_QUOTED)'; + } + + if ('prependLeadingComments' === $name) { + assertArgs(1, $args, $name); + + return '$attrs = $this->startAttributeStack[#1]; $stmts = ' . $args[0] . '; ' + . 'if (!empty($attrs[\'comments\'])) {' + . '$stmts[0]->setAttribute(\'comments\', ' + . 'array_merge($attrs[\'comments\'], $stmts[0]->getAttribute(\'comments\', []))); }'; + } + + return $matches[0]; + }, + $code + ); +} + +function assertArgs($num, $args, $name) { + if ($num != count($args)) { + die('Wrong argument count for ' . $name . '().'); + } +} + +function resolveStackAccess($code) { + $code = preg_replace('/\$\d+/', '$this->semStack[$0]', $code); + $code = preg_replace('/#(\d+)/', '$$1', $code); + return $code; +} + +function removeTrailingWhitespace($code) { + $lines = explode("\n", $code); + $lines = array_map('rtrim', $lines); + return implode("\n", $lines); +} + +////////////////////////////// +/// Regex helper functions /// +////////////////////////////// + +function regex($regex) { + return '~' . LIB . '(?:' . str_replace('~', '\~', $regex) . ')~'; +} + +function magicSplit($regex, $string) { + $pieces = preg_split(regex('(?:(?&string)|(?&comment)|(?&code))(*SKIP)(*FAIL)|' . $regex), $string); + + foreach ($pieces as &$piece) { + $piece = trim($piece); + } + + if ($pieces === ['']) { + return []; + } + + return $pieces; +} diff --git a/vendor/nikic/php-parser/grammar/rebuildParsers.php b/vendor/nikic/php-parser/grammar/rebuildParsers.php new file mode 100644 index 000000000..2d0c6b14d --- /dev/null +++ b/vendor/nikic/php-parser/grammar/rebuildParsers.php @@ -0,0 +1,81 @@ +<?php + +require __DIR__ . '/phpyLang.php'; + +$grammarFileToName = [ + __DIR__ . '/php5.y' => 'Php5', + __DIR__ . '/php7.y' => 'Php7', +]; + +$tokensFile = __DIR__ . '/tokens.y'; +$tokensTemplate = __DIR__ . '/tokens.template'; +$skeletonFile = __DIR__ . '/parser.template'; +$tmpGrammarFile = __DIR__ . '/tmp_parser.phpy'; +$tmpResultFile = __DIR__ . '/tmp_parser.php'; +$resultDir = __DIR__ . '/../lib/PhpParser/Parser'; +$tokensResultsFile = $resultDir . '/Tokens.php'; + +$kmyacc = getenv('KMYACC'); +if (!$kmyacc) { + // Use phpyacc from dev dependencies by default. + $kmyacc = __DIR__ . '/../vendor/bin/phpyacc'; +} + +$options = array_flip($argv); +$optionDebug = isset($options['--debug']); +$optionKeepTmpGrammar = isset($options['--keep-tmp-grammar']); + +/////////////////// +/// Main script /// +/////////////////// + +$tokens = file_get_contents($tokensFile); + +foreach ($grammarFileToName as $grammarFile => $name) { + echo "Building temporary $name grammar file.\n"; + + $grammarCode = file_get_contents($grammarFile); + $grammarCode = str_replace('%tokens', $tokens, $grammarCode); + $grammarCode = preprocessGrammar($grammarCode); + + file_put_contents($tmpGrammarFile, $grammarCode); + + $additionalArgs = $optionDebug ? '-t -v' : ''; + + echo "Building $name parser.\n"; + $output = execCmd("$kmyacc $additionalArgs -m $skeletonFile -p $name $tmpGrammarFile"); + + $resultCode = file_get_contents($tmpResultFile); + $resultCode = removeTrailingWhitespace($resultCode); + + ensureDirExists($resultDir); + file_put_contents("$resultDir/$name.php", $resultCode); + unlink($tmpResultFile); + + echo "Building token definition.\n"; + $output = execCmd("$kmyacc -m $tokensTemplate $tmpGrammarFile"); + rename($tmpResultFile, $tokensResultsFile); + + if (!$optionKeepTmpGrammar) { + unlink($tmpGrammarFile); + } +} + +//////////////////////////////// +/// Utility helper functions /// +//////////////////////////////// + +function ensureDirExists($dir) { + if (!is_dir($dir)) { + mkdir($dir, 0777, true); + } +} + +function execCmd($cmd) { + $output = trim(shell_exec("$cmd 2>&1")); + if ($output !== "") { + echo "> " . $cmd . "\n"; + echo $output; + } + return $output; +} diff --git a/vendor/nikic/php-parser/grammar/tokens.template b/vendor/nikic/php-parser/grammar/tokens.template new file mode 100644 index 000000000..ba4e4901c --- /dev/null +++ b/vendor/nikic/php-parser/grammar/tokens.template @@ -0,0 +1,17 @@ +<?php +$meta # +#semval($) $this->semValue +#semval($,%t) $this->semValue +#semval(%n) $this->stackPos-(%l-%n) +#semval(%n,%t) $this->stackPos-(%l-%n) + +namespace PhpParser\Parser; +#include; + +/* GENERATED file based on grammar/tokens.y */ +final class Tokens +{ +#tokenval + const %s = %n; +#endtokenval +} diff --git a/vendor/nikic/php-parser/grammar/tokens.y b/vendor/nikic/php-parser/grammar/tokens.y new file mode 100644 index 000000000..8f0b21725 --- /dev/null +++ b/vendor/nikic/php-parser/grammar/tokens.y @@ -0,0 +1,115 @@ +/* We currently rely on the token ID mapping to be the same between PHP 5 and PHP 7 - so the same lexer can be used for + * both. This is enforced by sharing this token file. */ + +%right T_THROW +%left T_INCLUDE T_INCLUDE_ONCE T_EVAL T_REQUIRE T_REQUIRE_ONCE +%left ',' +%left T_LOGICAL_OR +%left T_LOGICAL_XOR +%left T_LOGICAL_AND +%right T_PRINT +%right T_YIELD +%right T_DOUBLE_ARROW +%right T_YIELD_FROM +%left '=' 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 +%left '?' ':' +%right T_COALESCE +%left T_BOOLEAN_OR +%left T_BOOLEAN_AND +%left '|' +%left '^' +%left T_AMPERSAND_NOT_FOLLOWED_BY_VAR_OR_VARARG T_AMPERSAND_FOLLOWED_BY_VAR_OR_VARARG +%nonassoc T_IS_EQUAL T_IS_NOT_EQUAL T_IS_IDENTICAL T_IS_NOT_IDENTICAL T_SPACESHIP +%nonassoc '<' T_IS_SMALLER_OR_EQUAL '>' T_IS_GREATER_OR_EQUAL +%left T_SL T_SR +%left '+' '-' '.' +%left '*' '/' '%' +%right '!' +%nonassoc T_INSTANCEOF +%right '~' T_INC T_DEC T_INT_CAST T_DOUBLE_CAST T_STRING_CAST T_ARRAY_CAST T_OBJECT_CAST T_BOOL_CAST T_UNSET_CAST '@' +%right T_POW +%right '[' +%nonassoc T_NEW T_CLONE +%token T_EXIT +%token T_IF +%left T_ELSEIF +%left T_ELSE +%left T_ENDIF +%token T_LNUMBER +%token T_DNUMBER +%token T_STRING +%token T_STRING_VARNAME +%token T_VARIABLE +%token T_NUM_STRING +%token T_INLINE_HTML +%token T_ENCAPSED_AND_WHITESPACE +%token T_CONSTANT_ENCAPSED_STRING +%token T_ECHO +%token T_DO +%token T_WHILE +%token T_ENDWHILE +%token T_FOR +%token T_ENDFOR +%token T_FOREACH +%token T_ENDFOREACH +%token T_DECLARE +%token T_ENDDECLARE +%token T_AS +%token T_SWITCH +%token T_MATCH +%token T_ENDSWITCH +%token T_CASE +%token T_DEFAULT +%token T_BREAK +%token T_CONTINUE +%token T_GOTO +%token T_FUNCTION +%token T_FN +%token T_CONST +%token T_RETURN +%token T_TRY +%token T_CATCH +%token T_FINALLY +%token T_THROW +%token T_USE +%token T_INSTEADOF +%token T_GLOBAL +%right T_STATIC T_ABSTRACT T_FINAL T_PRIVATE T_PROTECTED T_PUBLIC T_READONLY +%token T_VAR +%token T_UNSET +%token T_ISSET +%token T_EMPTY +%token T_HALT_COMPILER +%token T_CLASS +%token T_TRAIT +%token T_INTERFACE +%token T_ENUM +%token T_EXTENDS +%token T_IMPLEMENTS +%token T_OBJECT_OPERATOR +%token T_NULLSAFE_OBJECT_OPERATOR +%token T_DOUBLE_ARROW +%token T_LIST +%token T_ARRAY +%token T_CALLABLE +%token T_CLASS_C +%token T_TRAIT_C +%token T_METHOD_C +%token T_FUNC_C +%token T_LINE +%token T_FILE +%token T_START_HEREDOC +%token T_END_HEREDOC +%token T_DOLLAR_OPEN_CURLY_BRACES +%token T_CURLY_OPEN +%token T_PAAMAYIM_NEKUDOTAYIM +%token T_NAMESPACE +%token T_NS_C +%token T_DIR +%token T_NS_SEPARATOR +%token T_ELLIPSIS +%token T_NAME_FULLY_QUALIFIED +%token T_NAME_QUALIFIED +%token T_NAME_RELATIVE +%token T_ATTRIBUTE +%token T_ENUM |