%{ package parser import ( "io" "fmt" "strings" "strconv" "github.com/z7zmey/php-parser/token" "github.com/z7zmey/php-parser/node" "github.com/z7zmey/php-parser/node/scalar" "github.com/z7zmey/php-parser/node/name" "github.com/z7zmey/php-parser/node/stmt" "github.com/z7zmey/php-parser/node/expr" "github.com/z7zmey/php-parser/node/expr/assign_op" "github.com/z7zmey/php-parser/node/expr/binary_op" "github.com/z7zmey/php-parser/node/expr/cast" ) var rootnode = stmt.NewStmtList([]node.Node{}) func Parse(src io.Reader, fName string) node.Node { yyDebug = 0 yyErrorVerbose = true rootnode = stmt.NewStmtList([]node.Node{}) //reset yyParse(newLexer(src, fName)) return rootnode } type foreachVariable struct { node node.Node byRef bool } %} %union{ node node.Node token token.Token value string list []node.Node strings []string foreachVariable foreachVariable } %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 %left '?' ':' %right T_COALESCE %left T_BOOLEAN_OR %left T_BOOLEAN_AND %left '|' %left '^' %left '&' %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 %left T_NOELSE %left T_ELSEIF %left T_ELSE %left T_ENDIF %right T_STATIC T_ABSTRACT T_FINAL T_PRIVATE T_PROTECTED T_PUBLIC %type $unk %token T_INCLUDE %token T_INCLUDE_ONCE %token T_EXIT %token T_IF %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_CHARACTER %token T_BAD_CHARACTER %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_ENDSWITCH %token T_CASE %token T_DEFAULT %token T_BREAK %token T_CONTINUE %token T_GOTO %token T_FUNCTION %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 %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_EXTENDS %token T_IMPLEMENTS %token T_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_COMMENT %token T_DOC_COMMENT %token T_OPEN_TAG %token T_OPEN_TAG_WITH_ECHO %token T_CLOSE_TAG %token T_WHITESPACE %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_EVAL %token T_REQUIRE %token T_REQUIRE_ONCE %token T_LOGICAL_OR %token T_LOGICAL_XOR %token T_LOGICAL_AND %token T_INSTANCEOF %token T_NEW %token T_CLONE %token T_ELSEIF %token T_ELSE %token T_ENDIF %token T_PRINT %token T_YIELD %token T_STATIC %token T_ABSTRACT %token T_FINAL %token T_PRIVATE %token T_PROTECTED %token T_PUBLIC %token '"' %token '`' %token '{' %token '}' %token ';' %token '(' %token ')' %token '[' %token ']' %type is_reference %type is_variadic %type returns_ref %type class_modifier %type reserved_non_modifiers %type semi_reserved %type identifier %type top_statement name statement function_declaration_statement %type class_declaration_statement trait_declaration_statement %type interface_declaration_statement %type group_use_declaration inline_use_declaration %type mixed_group_use_declaration use_declaration unprefixed_use_declaration %type const_decl inner_statement %type expr optional_expr while_statement for_statement %type foreach_statement declare_statement finally_statement unset_variable variable %type extends_from parameter optional_type argument expr_without_variable global_var %type static_var class_statement trait_adaptation trait_precedence trait_alias %type absolute_trait_method_reference trait_method_reference property echo_expr %type new_expr anonymous_class class_name class_name_reference simple_variable %type internal_functions_in_yacc %type exit_expr scalar lexical_var function_call member_name property_name %type variable_class_name dereferencable_scalar constant dereferencable %type callable_expr callable_variable static_member new_variable %type encaps_var encaps_var_offset %type if_stmt %type alt_if_stmt %type if_stmt_without_else %type class_const_decl %type alt_if_stmt_without_else %type array_pair possible_array_pair %type isset_variable type return_type type_expr %type member_modifier %type use_type %type foreach_variable %type class_modifiers %type encaps_list backticks_expr namespace_name catch_name_list catch_list class_const_list %type const_list echo_expr_list for_exprs non_empty_for_exprs global_var_list %type unprefixed_use_declarations inline_use_declarations property_list static_var_list %type switch_case_list case_list trait_adaptation_list trait_adaptations unset_variables %type use_declarations lexical_var_list lexical_vars isset_variables non_empty_array_pair_list %type array_pair_list ctor_arguments argument_list non_empty_argument_list top_statement_list %type inner_statement_list parameter_list non_empty_parameter_list class_statement_list %type method_body interface_extends_list implements_list method_modifiers variable_modifiers %type non_empty_member_modifiers name_list %% ///////////////////////////////////////////////////////////////////////// start: top_statement_list { rootnode = stmt.NewStmtList($1); } ; reserved_non_modifiers: T_INCLUDE {$$=$1} | T_INCLUDE_ONCE {$$=$1} | T_EVAL {$$=$1} | T_REQUIRE {$$=$1} | T_REQUIRE_ONCE {$$=$1} | T_LOGICAL_OR {$$=$1} | T_LOGICAL_XOR {$$=$1} | T_LOGICAL_AND {$$=$1} | T_INSTANCEOF {$$=$1} | T_NEW {$$=$1} | T_CLONE {$$=$1} | T_EXIT {$$=$1} | T_IF {$$=$1} | T_ELSEIF {$$=$1} | T_ELSE {$$=$1} | T_ENDIF {$$=$1} | T_ECHO {$$=$1} | T_DO {$$=$1} | T_WHILE {$$=$1} | T_ENDWHILE {$$=$1} | T_FOR {$$=$1} | T_ENDFOR {$$=$1} | T_FOREACH {$$=$1} | T_ENDFOREACH {$$=$1} | T_DECLARE {$$=$1} | T_ENDDECLARE {$$=$1} | T_AS {$$=$1} | T_TRY {$$=$1} | T_CATCH {$$=$1} | T_FINALLY {$$=$1} | T_THROW {$$=$1} | T_USE {$$=$1} | T_INSTEADOF {$$=$1} | T_GLOBAL {$$=$1} | T_VAR {$$=$1} | T_UNSET {$$=$1} | T_ISSET {$$=$1} | T_EMPTY {$$=$1} | T_CONTINUE {$$=$1} | T_GOTO {$$=$1} | T_FUNCTION {$$=$1} | T_CONST {$$=$1} | T_RETURN {$$=$1} | T_PRINT {$$=$1} | T_YIELD {$$=$1} | T_LIST {$$=$1} | T_SWITCH {$$=$1} | T_ENDSWITCH {$$=$1} | T_CASE {$$=$1} | T_DEFAULT {$$=$1} | T_BREAK {$$=$1} | T_ARRAY {$$=$1} | T_CALLABLE {$$=$1} | T_EXTENDS {$$=$1} | T_IMPLEMENTS {$$=$1} | T_NAMESPACE {$$=$1} | T_TRAIT {$$=$1} | T_INTERFACE {$$=$1} | T_CLASS {$$=$1} | T_CLASS_C {$$=$1} | T_TRAIT_C {$$=$1} | T_FUNC_C {$$=$1} | T_METHOD_C {$$=$1} | T_LINE {$$=$1} | T_FILE {$$=$1} | T_DIR {$$=$1} | T_NS_C {$$=$1} ; semi_reserved: reserved_non_modifiers {$$=$1} | T_STATIC {$$=$1} | T_ABSTRACT {$$=$1} | T_FINAL {$$=$1} | T_PRIVATE {$$=$1} | T_PROTECTED {$$=$1} | T_PUBLIC {$$=$1} ; identifier: T_STRING { $$ = $1 } | semi_reserved { $$ = $1 } ; top_statement_list: top_statement_list top_statement { $$ = append($1, $2) } | /* empty */ { $$ = []node.Node{} } ; namespace_name: T_STRING { $$ = []node.Node{name.NewNamePart($1)} } | namespace_name T_NS_SEPARATOR T_STRING { $$ = append($1, name.NewNamePart($3)) } ; name: namespace_name { $$ = name.NewName($1) } | T_NAMESPACE T_NS_SEPARATOR namespace_name { $$ = name.NewRelative($3) } | T_NS_SEPARATOR namespace_name { $$ = name.NewFullyQualified($2) } ; top_statement: statement { $$ = $1; } | function_declaration_statement { $$ = $1; } | class_declaration_statement { $$ = $1; } | trait_declaration_statement { $$ = $1; } | interface_declaration_statement { $$ = $1; } | T_HALT_COMPILER '(' ')' ';' { $$ = stmt.NewHaltCompiler($1) } | T_NAMESPACE namespace_name ';' { $$ = stmt.NewNamespace($1, name.NewName($2), nil) } | T_NAMESPACE namespace_name '{' top_statement_list '}' { $$ = stmt.NewNamespace($1, name.NewName($2), $4) } | T_NAMESPACE '{' top_statement_list '}' { $$ = stmt.NewNamespace($1, nil, $3) } | T_USE mixed_group_use_declaration ';' { $$ = $2.(stmt.GroupUse).SetToken($1) } | T_USE use_type group_use_declaration ';' { $$ = $3.(stmt.GroupUse).SetToken($1).(stmt.GroupUse).SetUseType($2) } | T_USE use_declarations ';' { $$ = stmt.NewUseList($1, nil, $2) } | T_USE use_type use_declarations ';' { $$ = stmt.NewUseList($1, $2, $3) } | T_CONST const_list ';' { $$ = stmt.NewStmtConst($1, $2) } ; use_type: T_FUNCTION { $$ = node.NewIdentifier($1) } | T_CONST { $$ = node.NewIdentifier($1) } ; group_use_declaration: namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}' { fmt.Println("group") $$ = stmt.NewGroupUse(nil, nil, name.NewName($1), $4) } | T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' unprefixed_use_declarations possible_comma '}' { $$ = stmt.NewGroupUse(nil, nil, name.NewName($2), $5) } ; mixed_group_use_declaration: namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}' { fmt.Println("mixed") $$ = stmt.NewGroupUse(nil, nil, name.NewName($1), $4) } | T_NS_SEPARATOR namespace_name T_NS_SEPARATOR '{' inline_use_declarations possible_comma '}' { $$ = stmt.NewGroupUse(nil, nil, name.NewName($2), $5) } ; possible_comma: /* empty */ | ',' ; inline_use_declarations: inline_use_declarations ',' inline_use_declaration { $$ = append($1, $3) } | inline_use_declaration { $$ = []node.Node{$1} } ; unprefixed_use_declarations: unprefixed_use_declarations ',' unprefixed_use_declaration { $$ = append($1, $3) } | unprefixed_use_declaration { $$ = []node.Node{$1} } ; use_declarations: use_declarations ',' use_declaration { $$ = append($1, $3) } | use_declaration { $$ = []node.Node{$1} } ; inline_use_declaration: unprefixed_use_declaration { $$ = $1; } | use_type unprefixed_use_declaration { $$ = $2.(stmt.Use).SetType($1) } ; unprefixed_use_declaration: namespace_name { $$ = stmt.NewUse(nil, name.NewName($1), nil) } | namespace_name T_AS T_STRING { $$ = stmt.NewUse(nil, name.NewName($1), $3) } ; use_declaration: unprefixed_use_declaration { $$ = $1; } | T_NS_SEPARATOR unprefixed_use_declaration { $$ = $2; } ; const_list: const_list ',' const_decl { $$ = append($1, $3) } | const_decl { $$ = []node.Node{$1} } ; inner_statement_list: inner_statement_list inner_statement { $$ = append($1, $2) } | /* empty */ { $$ = []node.Node{} } ; inner_statement: statement { $$ = $1; } | function_declaration_statement { $$ = $1; } | class_declaration_statement { $$ = $1; } | trait_declaration_statement { $$ = $1; } | interface_declaration_statement { $$ = $1; } | T_HALT_COMPILER '(' ')' ';' { $$ = stmt.NewHaltCompiler($1) } statement: '{' inner_statement_list '}' { $$ = stmt.NewStmtList($2) } | if_stmt { $$ = $1; } | alt_if_stmt { $$ = $1; } | T_WHILE '(' expr ')' while_statement { $$ = stmt.NewWhile($1, $3, $5) } | T_DO statement T_WHILE '(' expr ')' ';' { $$ = stmt.NewDo($1, $2, $5) } | T_FOR '(' for_exprs ';' for_exprs ';' for_exprs ')' for_statement { $$ = stmt.NewFor($1, $3, $5, $7, $9) } | T_SWITCH '(' expr ')' switch_case_list { $$ = stmt.NewSwitch($1, $3, $5) } | T_BREAK optional_expr ';' { $$ = stmt.NewBreak($1, $2) } | T_CONTINUE optional_expr ';' { $$ = stmt.NewContinue($1, $2) } | T_RETURN optional_expr ';' { $$ = stmt.NewReturn($1, $2) } | T_GLOBAL global_var_list ';' { $$ = stmt.NewGlobal($1, $2) } | T_STATIC static_var_list ';' { $$ = stmt.NewStatic($1, $2); } | T_ECHO echo_expr_list ';' { $$ = stmt.NewEcho($1, $2) } | T_INLINE_HTML { $$ = stmt.NewInlineHtml($1) } | expr ';' { $$ = stmt.NewExpression($1); } | T_UNSET '(' unset_variables possible_comma ')' ';' { $$ = stmt.NewUnset($1, $3) } | T_FOREACH '(' expr T_AS foreach_variable ')' foreach_statement { $$ = stmt.NewForeach($1, $3, nil, $5.node, $7, $5.byRef); } | T_FOREACH '(' expr T_AS variable T_DOUBLE_ARROW foreach_variable ')' foreach_statement { $$ = stmt.NewForeach($1, $3, $5, $7.node, $9, $7.byRef); } | T_DECLARE '(' const_list ')' declare_statement { $$ = stmt.NewDeclare($1, $3, $5) } | ';' { $$ = stmt.NewNop($1) } | T_TRY '{' inner_statement_list '}' catch_list finally_statement { $$ = stmt.NewTry($1, $3, $5, $6) } | T_THROW expr ';' { $$ = stmt.NewThrow($1, $2) } | T_GOTO T_STRING ';' { $$ = stmt.NewGoto($1, $2) } | T_STRING ':' { $$ = stmt.NewLabel($1) } catch_list: /* empty */ { $$ = []node.Node{} } | catch_list T_CATCH '(' catch_name_list T_VARIABLE ')' '{' inner_statement_list '}' { $$ = append($1, stmt.NewCatch($2, $4, expr.NewVariable(node.NewIdentifier($5)), $8)) } ; catch_name_list: name { $$ = []node.Node{$1} } | catch_name_list '|' name { $$ = append($1, $3) } ; finally_statement: /* empty */ { $$ = nil } | T_FINALLY '{' inner_statement_list '}' { $$ = stmt.NewFinally($1, $3) } ; unset_variables: unset_variable { $$ = []node.Node{$1} } | unset_variables ',' unset_variable { $$ = append($1, $3) } ; unset_variable: variable { $$ = $1 } ; function_declaration_statement: T_FUNCTION returns_ref T_STRING '(' parameter_list ')' return_type '{' inner_statement_list '}' { $$ = stmt.NewFunction($3, $2 == "true", $5, $7, $9) } ; is_reference: /* empty */ { $$ = "false"; } | '&' { $$ = "true"; } ; is_variadic: /* empty */ { $$ = "false"; } | T_ELLIPSIS { $$ = "true"; } ; class_declaration_statement: class_modifiers T_CLASS T_STRING extends_from implements_list '{' class_statement_list '}' { $$ = stmt.NewClass($3, $1, nil, $4, $5, $7) } | T_CLASS T_STRING extends_from implements_list '{' class_statement_list '}' { $$ = stmt.NewClass($2, nil, nil, $3, $4, $6) } ; class_modifiers: class_modifier { $$ = []string{$1} } | class_modifiers class_modifier { $$ = append($1, $2) } ; class_modifier: T_ABSTRACT { $$ = "abstract" } | T_FINAL { $$ = "final" } ; trait_declaration_statement: T_TRAIT T_STRING '{' class_statement_list '}' { $$ = stmt.NewTrait($2, $4) } ; interface_declaration_statement: T_INTERFACE T_STRING interface_extends_list '{' class_statement_list '}' { $$ = stmt.NewInterface($1, $2, $3, $5) } ; extends_from: /* empty */ { $$ = nil } | T_EXTENDS name { $$ = $2; } ; interface_extends_list: /* empty */ { $$ = nil } | T_EXTENDS name_list { $$ = $2 } ; implements_list: /* empty */ { $$ = nil } | T_IMPLEMENTS name_list { $$ = $2 } ; foreach_variable: variable { $$ = foreachVariable{$1, false} } | '&' variable { $$ = foreachVariable{$2, true} } | T_LIST '(' array_pair_list ')' { $$ = foreachVariable{expr.NewList($3), false} } | '[' array_pair_list ']' { $$ = foreachVariable{expr.NewShortList($2), false} } ; for_statement: statement { $$ = $1; } | ':' inner_statement_list T_ENDFOR ';' { $$ = stmt.NewStmtList($2); } ; foreach_statement: statement { $$ = $1; } | ':' inner_statement_list T_ENDFOREACH ';' { $$ = stmt.NewStmtList($2); } ; declare_statement: statement { $$ = $1; } | ':' inner_statement_list T_ENDDECLARE ';' { $$ = stmt.NewStmtList($2); } ; switch_case_list: '{' case_list '}' { $$ = $2; } | '{' ';' case_list '}' { $$ = $3; } | ':' case_list T_ENDSWITCH ';' { $$ = $2; } | ':' ';' case_list T_ENDSWITCH ';' { $$ = $3; } ; case_list: /* empty */ { $$ = []node.Node{} } | case_list T_CASE expr case_separator inner_statement_list { $$ = append($1, stmt.NewCase($2, $3, $5)) } | case_list T_DEFAULT case_separator inner_statement_list { $$ = append($1, stmt.NewDefault($2, $4)) } ; case_separator: ':' | ';' ; while_statement: statement { $$ = $1; } | ':' inner_statement_list T_ENDWHILE ';' { $$ = stmt.NewStmtList($2); } ; if_stmt_without_else: T_IF '(' expr ')' statement { $$ = stmt.NewIf($1, $3, $5) } | if_stmt_without_else T_ELSEIF '(' expr ')' statement { _elseIf := stmt.NewElseIf($2, $4, $6) $$ = $1.(stmt.If).AddElseIf(_elseIf) } ; if_stmt: if_stmt_without_else %prec T_NOELSE { $$ = $1; } | if_stmt_without_else T_ELSE statement { _else := stmt.NewElse($2, $3) $$ = $1.(stmt.If).SetElse(_else) } ; alt_if_stmt_without_else: T_IF '(' expr ')' ':' inner_statement_list { $$ = stmt.NewAltIf($1, $3, stmt.NewStmtList($6)) } | alt_if_stmt_without_else T_ELSEIF '(' expr ')' ':' inner_statement_list { _elseIf := stmt.NewAltElseIf($2, $4, stmt.NewStmtList($7)) $$ = $1.(stmt.AltIf).AddElseIf(_elseIf) } ; alt_if_stmt: alt_if_stmt_without_else T_ENDIF ';' { $$ = $1; } | alt_if_stmt_without_else T_ELSE ':' inner_statement_list T_ENDIF ';' { _else := stmt.NewAltElse($2, stmt.NewStmtList($4)) $$ = $1.(stmt.AltIf).SetElse(_else) } ; parameter_list: non_empty_parameter_list { $$ = $1; } | /* empty */ { $$ = nil } ; non_empty_parameter_list: parameter { $$ = []node.Node{$1} } | non_empty_parameter_list ',' parameter { $$ = append($1, $3) } ; parameter: optional_type is_reference is_variadic T_VARIABLE { $$ = node.NewSimpleNode("Parameter"). Append($1). Attribute("is_reference", $2). Attribute("is_variadic", $3). Attribute("var", $4.String()); } | optional_type is_reference is_variadic T_VARIABLE '=' expr { $$ = node.NewSimpleNode("Parameter"). Append($1). Attribute("is_reference", $2). Attribute("is_variadic", $3). Attribute("var", $4.String()). Append($6); } ; optional_type: /* empty */ { $$ = node.NewSimpleNode("No type") } | type_expr { $$ = $1; } ; type_expr: type { $$ = $1; } | '?' type { $$ = $2; $$.Attribute("nullable", "true") } ; type: T_ARRAY { $$ = node.NewIdentifier($1) } | T_CALLABLE { $$ = node.NewIdentifier($1) } | name { $$ = $1; } ; return_type: /* empty */ { $$ = nil } | ':' type_expr { $$ = $2; } ; argument_list: '(' ')' { $$ = []node.Node{} } | '(' non_empty_argument_list possible_comma ')' { $$ = $2; } ; non_empty_argument_list: argument { $$ = []node.Node{$1} } | non_empty_argument_list ',' argument { $$ = append($1, $3) } ; argument: expr { $$ = $1; } | T_ELLIPSIS expr { $$ = node.NewSimpleNode("Unpack").Append($2) } ; global_var_list: global_var_list ',' global_var { $$ = append($1, $3); } | global_var { $$ = []node.Node{$1} } ; global_var: simple_variable { $$ = $1 } ; static_var_list: static_var_list ',' static_var { $$ = append($1, $3) } | static_var { $$ = []node.Node{$1} } ; static_var: T_VARIABLE { $$ = stmt.NewStaticVar($1, nil) } | T_VARIABLE '=' expr { $$ = stmt.NewStaticVar($1, $3) } ; class_statement_list: class_statement_list class_statement { $$ = append($1, $2) } | /* empty */ { $$ = []node.Node{} } ; class_statement: variable_modifiers property_list ';' { $$ = stmt.NewPropertyList($1, $2) } | method_modifiers T_CONST class_const_list ';' { $$ = stmt.NewClassConst($2, $1, $3); } | T_USE name_list trait_adaptations { $$ = stmt.NewTraitUse($1, $2, $3) } | method_modifiers T_FUNCTION returns_ref identifier '(' parameter_list ')' return_type method_body { $$ = stmt.NewClassMethod($4, $1, $3 == "true", $6, $8, $9) } ; name_list: name { $$ = []node.Node{$1} } | name_list ',' name { $$ = append($1, $3) } ; trait_adaptations: ';' { $$ = nil } | '{' '}' { $$ = nil } | '{' trait_adaptation_list '}' { $$ = $2; } ; trait_adaptation_list: trait_adaptation { $$ = []node.Node{$1} } | trait_adaptation_list trait_adaptation { $$ = append($1, $2) } ; trait_adaptation: trait_precedence ';' { $$ = $1; } | trait_alias ';' { $$ = $1; } ; trait_precedence: absolute_trait_method_reference T_INSTEADOF name_list { $$ = stmt.NewTraitUsePrecedence($1, name.NewName($3)) } ; trait_alias: trait_method_reference T_AS T_STRING { $$ = stmt.NewTraitUseAlias($1, nil, $3) } | trait_method_reference T_AS reserved_non_modifiers { $$ = stmt.NewTraitUseAlias($1, nil, $3) } | trait_method_reference T_AS member_modifier identifier { $$ = stmt.NewTraitUseAlias($1, $3, $4) } | trait_method_reference T_AS member_modifier { $$ = stmt.NewTraitUseAlias($1, $3, nil) } ; trait_method_reference: identifier { $$ = stmt.NewTraitMethodRef(nil, $1) } | absolute_trait_method_reference { $$ = $1; } ; absolute_trait_method_reference: name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = stmt.NewTraitMethodRef($1, $3) } ; method_body: ';' /* abstract method */ { $$ = nil } | '{' inner_statement_list '}' { $$ = $2 } ; variable_modifiers: non_empty_member_modifiers { $$ = $1; } | T_VAR { $$ = []node.Node{node.NewIdentifier($1)} } ; method_modifiers: /* empty */ { $$ = nil } | non_empty_member_modifiers { $$ = $1 } ; non_empty_member_modifiers: member_modifier { $$ = []node.Node{$1} } | non_empty_member_modifiers member_modifier { $$ = append($1, $2) } ; member_modifier: T_PUBLIC { $$ = node.NewIdentifier($1) } | T_PROTECTED { $$ = node.NewIdentifier($1) } | T_PRIVATE { $$ = node.NewIdentifier($1) } | T_STATIC { $$ = node.NewIdentifier($1) } | T_ABSTRACT { $$ = node.NewIdentifier($1) } | T_FINAL { $$ = node.NewIdentifier($1) } ; property_list: property_list ',' property { $$ = append($1, $3) } | property { $$ = []node.Node{$1} } ; property: T_VARIABLE { $$ = stmt.NewProperty($1, nil) } | T_VARIABLE '=' expr { $$ = stmt.NewProperty($1, $3) } ; class_const_list: class_const_list ',' class_const_decl { $$ = append($1, $3) } | class_const_decl { $$ = []node.Node{$1} } ; class_const_decl: identifier '=' expr { $$ = stmt.NewConstant($1, $3) } ; const_decl: T_STRING '=' expr { $$ = stmt.NewConstant($1, $3) } ; echo_expr_list: echo_expr_list ',' echo_expr { $$ = append($1, $3) } | echo_expr { $$ = []node.Node{$1} } ; echo_expr: expr { $$ = $1 } ; for_exprs: /* empty */ { $$ = nil; } | non_empty_for_exprs { $$ = $1; } ; non_empty_for_exprs: non_empty_for_exprs ',' expr { $$ = append($1, $3) } | expr { $$ = []node.Node{$1} } ; anonymous_class: T_CLASS ctor_arguments extends_from implements_list '{' class_statement_list '}' { { $$ = stmt.NewClass($1, nil, $2, $3, $4, $6) } } ; new_expr: T_NEW class_name_reference ctor_arguments { $$ = expr.NewNew($2, $3) } | T_NEW anonymous_class { $$ = expr.NewNew($2, nil) } ; expr_without_variable: T_LIST '(' array_pair_list ')' '=' expr { list := expr.NewList($3) $$ = assign_op.NewAssign(list, $6) } | '[' array_pair_list ']' '=' expr { shortList := expr.NewShortList($2) $$ = assign_op.NewAssign(shortList, $5) } | variable '=' expr { $$ = assign_op.NewAssign($1, $3) } | variable '=' '&' expr { $$ = assign_op.NewAssignRef($1, $4) } | T_CLONE expr { $$ = expr.NewClone($2) } | variable T_PLUS_EQUAL expr { $$ = assign_op.NewPlus($1, $3) } | variable T_MINUS_EQUAL expr { $$ = assign_op.NewMinus($1, $3) } | variable T_MUL_EQUAL expr { $$ = assign_op.NewMul($1, $3) } | variable T_POW_EQUAL expr { $$ = assign_op.NewPow($1, $3) } | variable T_DIV_EQUAL expr { $$ = assign_op.NewDiv($1, $3) } | variable T_CONCAT_EQUAL expr { $$ = assign_op.NewConcat($1, $3) } | variable T_MOD_EQUAL expr { $$ = assign_op.NewMod($1, $3) } | variable T_AND_EQUAL expr { $$ = assign_op.NewBitwiseAnd($1, $3) } | variable T_OR_EQUAL expr { $$ = assign_op.NewBitwiseOr($1, $3) } | variable T_XOR_EQUAL expr { $$ = assign_op.NewBitwiseXor($1, $3) } | variable T_SL_EQUAL expr { $$ = assign_op.NewShiftLeft($1, $3) } | variable T_SR_EQUAL expr { $$ = assign_op.NewShiftRight($1, $3) } | variable T_INC { $$ = expr.NewPostInc($1) } | T_INC variable { $$ = expr.NewPreInc($2) } | variable T_DEC { $$ = expr.NewPostDec($1) } | T_DEC variable { $$ = expr.NewPreDec($2) } | expr T_BOOLEAN_OR expr { $$ = binary_op.NewBooleanOr($1, $3) } | expr T_BOOLEAN_AND expr { $$ = binary_op.NewBooleanAnd($1, $3) } | expr T_LOGICAL_OR expr { $$ = binary_op.NewLogicalOr($1, $3) } | expr T_LOGICAL_AND expr { $$ = binary_op.NewLogicalAnd($1, $3) } | expr T_LOGICAL_XOR expr { $$ = binary_op.NewLogicalXor($1, $3) } | expr '|' expr { $$ = binary_op.NewBitwiseOr($1, $3) } | expr '&' expr { $$ = binary_op.NewBitwiseAnd($1, $3) } | expr '^' expr { $$ = binary_op.NewBitwiseXor($1, $3) } | expr '.' expr { $$ = binary_op.NewConcat($1, $3) } | expr '+' expr { $$ = binary_op.NewPlus($1, $3) } | expr '-' expr { $$ = binary_op.NewMinus($1, $3) } | expr '*' expr { $$ = binary_op.NewMul($1, $3) } | expr T_POW expr { $$ = binary_op.NewPow($1, $3) } | expr '/' expr { $$ = binary_op.NewDiv($1, $3) } | expr '%' expr { $$ = binary_op.NewMod($1, $3) } | expr T_SL expr { $$ = binary_op.NewShiftLeft($1, $3) } | expr T_SR expr { $$ = binary_op.NewShiftRight($1, $3) } | '+' expr %prec T_INC { $$ = expr.NewUnaryPlus($2) } | '-' expr %prec T_INC { $$ = expr.NewUnaryMinus($2) } | '!' expr { $$ = expr.NewBooleanNot($2) } | '~' expr { $$ = expr.NewBitwiseNot($2) } | expr T_IS_IDENTICAL expr { $$ = binary_op.NewIdentical($1, $3) } | expr T_IS_NOT_IDENTICAL expr { $$ = binary_op.NewNotIdentical($1, $3) } | expr T_IS_EQUAL expr { $$ = binary_op.NewEqual($1, $3) } | expr T_IS_NOT_EQUAL expr { $$ = binary_op.NewNotEqual($1, $3) } | expr '<' expr { $$ = binary_op.NewSmaller($1, $3) } | expr T_IS_SMALLER_OR_EQUAL expr { $$ = binary_op.NewSmallerOrEqual($1, $3) } | expr '>' expr { $$ = binary_op.NewGreater($1, $3) } | expr T_IS_GREATER_OR_EQUAL expr { $$ = binary_op.NewGreaterOrEqual($1, $3) } | expr T_SPACESHIP expr { $$ = binary_op.NewSpaceship($1, $3) } | expr T_INSTANCEOF class_name_reference { $$ = expr.NewInstanceOf($1, $3) } | '(' expr ')' { $$ = $2; } | new_expr { $$ = $1; } | expr '?' expr ':' expr { $$ = expr.NewTernary($1, $3, $5) } | expr '?' ':' expr { $$ = expr.NewTernary($1, nil, $4) } | expr T_COALESCE expr { $$ = binary_op.NewCoalesce($1, $3) } | internal_functions_in_yacc { $$ = $1} | T_INT_CAST expr { $$ = cast.NewCastInt($2) } | T_DOUBLE_CAST expr { $$ = cast.NewCastDouble($2) } | T_STRING_CAST expr { $$ = cast.NewCastString($2) } | T_ARRAY_CAST expr { $$ = cast.NewCastArray($2) } | T_OBJECT_CAST expr { $$ = cast.NewCastObject($2) } | T_BOOL_CAST expr { $$ = cast.NewCastBool($2) } | T_UNSET_CAST expr { $$ = cast.NewCastUnset($2) } | T_EXIT exit_expr { $$ = expr.NewExit($2, strings.EqualFold($1.Value, "die")) } | '@' expr { $$ = expr.NewErrorSuppress($2) } | scalar { $$ = $1; } | '`' backticks_expr '`' { $$ = expr.NewShellExec($2) } | T_PRINT expr { $$ = expr.NewPrint($2) } | T_YIELD { $$ = expr.NewYield(nil, nil) } | T_YIELD expr { $$ = expr.NewYield(nil, $2) } | T_YIELD expr T_DOUBLE_ARROW expr { $$ = expr.NewYield($2, $4) } | T_YIELD_FROM expr { $$ = expr.NewYieldFrom($2) } | T_FUNCTION returns_ref '(' parameter_list ')' lexical_vars return_type '{' inner_statement_list '}' { $$ = expr.NewClosure($4, $6, $7, $9, false, $2 == "true") } | T_STATIC T_FUNCTION returns_ref '(' parameter_list ')' lexical_vars return_type '{' inner_statement_list '}' { $$ = expr.NewClosure($5, $7, $8, $10, true, $3 == "true") } ; returns_ref: /* empty */ { $$ = "false"; } | '&' { $$ = "true"; } ; lexical_vars: /* empty */ { $$ = []node.Node{} } | T_USE '(' lexical_var_list ')' { $$ = $3; } ; lexical_var_list: lexical_var_list ',' lexical_var { $$ = append($1, $3) } | lexical_var { $$ = []node.Node{$1} } ; lexical_var: T_VARIABLE { $$ = expr.NewClusureUse(expr.NewVariable(node.NewIdentifier($1)), false) } | '&' T_VARIABLE { $$ = expr.NewClusureUse(expr.NewVariable(node.NewIdentifier($2)), true) } ; function_call: name argument_list { $$ = expr.NewFunctionCall($1, $2) } | class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list { $$ = expr.NewStaticCall($1, $3, $4) } | variable_class_name T_PAAMAYIM_NEKUDOTAYIM member_name argument_list { $$ = expr.NewStaticCall($1, $3, $4) } | callable_expr argument_list { $$ = expr.NewFunctionCall($1, $2) } ; class_name: T_STATIC { $$ = node.NewIdentifier($1) } | name { $$ = $1; } ; class_name_reference: class_name { $$ = $1; } | new_variable { $$ = $1; } ; exit_expr: /* empty */ { $$ = nil } | '(' optional_expr ')' { $$ = $2; } ; backticks_expr: /* empty */ { $$ = []node.Node{} } | T_ENCAPSED_AND_WHITESPACE { $$ = []node.Node{scalar.NewEncapsedStringPart($1)} } | encaps_list { $$ = $1; } ; ctor_arguments: /* empty */ { $$ = nil } | argument_list { $$ = $1 } ; dereferencable_scalar: T_ARRAY '(' array_pair_list ')' { $$ = expr.NewArray($1, $4, $3) } | '[' array_pair_list ']' { $$ = expr.NewShortArray($1, $3, $2) } | T_CONSTANT_ENCAPSED_STRING { $$ = scalar.NewString($1) } ; scalar: T_LNUMBER { $$ = scalar.NewLnumber($1) } | T_DNUMBER { $$ = scalar.NewDnumber($1) } | T_LINE { $$ = scalar.NewMagicConstant($1) } | T_FILE { $$ = scalar.NewMagicConstant($1) } | T_DIR { $$ = scalar.NewMagicConstant($1) } | T_TRAIT_C { $$ = scalar.NewMagicConstant($1) } | T_METHOD_C { $$ = scalar.NewMagicConstant($1) } | T_FUNC_C { $$ = scalar.NewMagicConstant($1) } | T_NS_C { $$ = scalar.NewMagicConstant($1) } | T_CLASS_C { $$ = scalar.NewMagicConstant($1) } | T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC { $$ = scalar.NewString($2) /* TODO: mark as Heredoc*/ } | T_START_HEREDOC T_END_HEREDOC { $$ = scalar.NewEncapsed($1, nil, $2) } | '"' encaps_list '"' { $$ = scalar.NewEncapsed($1, $2, $3) } | T_START_HEREDOC encaps_list T_END_HEREDOC { $$ = scalar.NewEncapsed($1, $2, $3) } | dereferencable_scalar { $$ = $1; } | constant { $$ = $1; } ; constant: name { $$ = expr.NewConstFetch($1) } | class_name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = expr.NewClassConstFetch($1, $3) } | variable_class_name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = expr.NewClassConstFetch($1, $3) } ; expr: variable { $$ = $1; } | expr_without_variable { $$ = $1; } ; optional_expr: /* empty */ { $$ = nil } | expr { $$ = $1; } ; variable_class_name: dereferencable { $$ = $1; } ; dereferencable: variable { $$ = $1; } | '(' expr ')' { $$ = $2; } | dereferencable_scalar { $$ = $1; } ; callable_expr: callable_variable { $$ = $1; } | '(' expr ')' { $$ = $2; } | dereferencable_scalar { $$ = $1; } ; callable_variable: simple_variable { $$ = $1; } | dereferencable '[' optional_expr ']' { $$ = expr.NewArrayDimFetch($1, $3) } | constant '[' optional_expr ']' { $$ = expr.NewArrayDimFetch($1, $3) } | dereferencable '{' expr '}' { $$ = expr.NewArrayDimFetch($1, $3) } | dereferencable T_OBJECT_OPERATOR property_name argument_list { $$ = expr.NewMethodCall($1, $3, $4) } | function_call { $$ = $1; } ; variable: callable_variable { $$ = $1; } | static_member { $$ = $1; } | dereferencable T_OBJECT_OPERATOR property_name { $$ = expr.NewPropertyFetch($1, $3) } ; simple_variable: T_VARIABLE { $$ = expr.NewVariable(node.NewIdentifier($1)) } | '$' '{' expr '}' { $$ = expr.NewVariable($3) } | '$' simple_variable { $$ = expr.NewVariable($2) } ; static_member: class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable { $$ = expr.NewStaticPropertyFetch($1, $3) } | variable_class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable { $$ = expr.NewStaticPropertyFetch($1, $3) } ; new_variable: simple_variable { $$ = $1 } | new_variable '[' optional_expr ']' { $$ = expr.NewArrayDimFetch($1, $3) } | new_variable '{' expr '}' { $$ = expr.NewArrayDimFetch($1, $3) } | new_variable T_OBJECT_OPERATOR property_name { $$ = expr.NewPropertyFetch($1, $3) } | class_name T_PAAMAYIM_NEKUDOTAYIM simple_variable { $$ = expr.NewStaticPropertyFetch($1, $3) } | new_variable T_PAAMAYIM_NEKUDOTAYIM simple_variable { $$ = expr.NewStaticPropertyFetch($1, $3) } ; member_name: identifier { $$ = node.NewIdentifier($1) } | '{' expr '}' { $$ = $2; } | simple_variable { $$ = $1 } ; property_name: T_STRING { $$ = node.NewIdentifier($1) } | '{' expr '}' { $$ = $2; } | simple_variable { $$ = $1 } ; array_pair_list: non_empty_array_pair_list { if ($1[len($1)-1] == nil) { $$ = $1[:len($1)-1] } else { $$ = $1 } } ; possible_array_pair: /* empty */ { $$ = nil } | array_pair { $$ = $1; } ; non_empty_array_pair_list: non_empty_array_pair_list ',' possible_array_pair { $$ = append($1, $3) } | possible_array_pair { $$ = []node.Node{$1} } ; array_pair: expr T_DOUBLE_ARROW expr { $$ = expr.NewArrayItem($1, $3, false) } | expr { $$ = expr.NewArrayItem(nil, $1, false) } | expr T_DOUBLE_ARROW '&' variable { $$ = expr.NewArrayItem($1, $4, true) } | '&' variable { $$ = expr.NewArrayItem(nil, $2, true) } | expr T_DOUBLE_ARROW T_LIST '(' array_pair_list ')' { // TODO: Cannot use list() as standalone expression list := expr.NewList($5) $$ = expr.NewArrayItem($1, list, false) } | T_LIST '(' array_pair_list ')' { // TODO: Cannot use list() as standalone expression list := expr.NewList($3) $$ = expr.NewArrayItem(nil, list, false) } ; encaps_list: encaps_list encaps_var { $$ = append($1, $2) } | encaps_list T_ENCAPSED_AND_WHITESPACE { $$ = append($1, scalar.NewEncapsedStringPart($2)) } | encaps_var { $$ = []node.Node{$1} } | T_ENCAPSED_AND_WHITESPACE encaps_var { $$ = []node.Node{scalar.NewEncapsedStringPart($1), $2} } ; encaps_var: T_VARIABLE { $$ = expr.NewVariable(node.NewIdentifier($1)) } | T_VARIABLE '[' encaps_var_offset ']' { $$ = expr.NewArrayDimFetch(expr.NewVariable(node.NewIdentifier($1)), $3) } | T_VARIABLE T_OBJECT_OPERATOR T_STRING { $$ = expr.NewPropertyFetch(expr.NewVariable(node.NewIdentifier($1)), node.NewIdentifier($3)) } | T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = expr.NewVariable($2) } | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = expr.NewVariable(node.NewIdentifier($2)) } | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}' { $$ = expr.NewArrayDimFetch(expr.NewVariable(node.NewIdentifier($2)), $4) } | T_CURLY_OPEN variable '}' { $$ = $2; } ; encaps_var_offset: T_STRING { $$ = scalar.NewString($1) } | T_NUM_STRING { // TODO: add option to handle 64 bit integer if _, err := strconv.Atoi($1.Value); err == nil { $$ = scalar.NewLnumber($1) } else { $$ = scalar.NewString($1) } } | '-' T_NUM_STRING { // TODO: add option to handle 64 bit integer if _, err := strconv.Atoi($2.Value); err == nil { $$ = expr.NewUnaryMinus(scalar.NewLnumber($2)) } else { $2.Value = "-"+$2.Value $$ = scalar.NewString($2) } } | T_VARIABLE { $$ = expr.NewVariable(node.NewIdentifier($1)) } ; internal_functions_in_yacc: T_ISSET '(' isset_variables possible_comma ')' { $$ = expr.NewIsset($3) } | T_EMPTY '(' expr ')' { $$ = expr.NewEmpty($3) } | T_INCLUDE expr { $$ = expr.NewInclude($2) } | T_INCLUDE_ONCE expr { $$ = expr.NewIncludeOnce($2) } | T_EVAL '(' expr ')' { $$ = expr.NewEval($3) } | T_REQUIRE expr { $$ = expr.NewRequire($2) } | T_REQUIRE_ONCE expr { $$ = expr.NewRequireOnce($2) } ; isset_variables: isset_variable { $$ = []node.Node{$1} } | isset_variables ',' isset_variable { $$ = append($1, $3) } ; isset_variable: expr { $$ = $1 } ; ///////////////////////////////////////////////////////////////////////// %%