|
|
%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; };
%%
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