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tree-sitter-objc.ebnf
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//
// From tree-sitter-objc/src/grammar.json
//
//
// EBNF to generate railroad diagram at
// (IPV6) https://www.bottlecaps.de/rr/ui
// (IPV4) https://rr.red-dove.com/ui
//
translation_unit ::=
_top_level_item*
_top_level_item ::=
function_definition
| linkage_specification
| declaration
| _statement
| type_definition
| _empty_declaration
| preproc_if
| preproc_ifdef
| preproc_include
| preproc_def
| preproc_function_def
| _import
| class_interface
| class_implementation
| category_interface
| category_implementation
| protocol_declaration
| protocol_forward_declaration
| class_forward_declaration
| _ns_assume_nonnull_declaration
| compatibility_alias_declaration
preproc_include ::=
'#'[ #x09]*'include' ( string_literal | system_lib_string | identifier | preproc_call_expression ) '\n'
preproc_def ::=
'#'[ #x09]*'define' identifier preproc_arg? '\n'
preproc_function_def ::=
'#'[ #x09]*'define' identifier preproc_params preproc_arg? '\n'
preproc_params ::=
'(' ( ( identifier | '...' ) ( ',' ( identifier | '...' ) )* )? ')'
preproc_call ::=
preproc_directive preproc_arg? '\n'
preproc_if ::=
'#'[ #x09]*'if' _preproc_expression '\n' _top_level_item* ( preproc_else | preproc_elif )? '#'[ #x09]*'endif'
preproc_ifdef ::=
( '#'[ #x09]*'ifdef' | '#'[ #x09]*'ifndef' ) identifier _top_level_item* ( preproc_else | preproc_elif )? '#'[ #x09]*'endif'
preproc_else ::=
'#'[ #x09]*'else' _top_level_item*
preproc_elif ::=
'#'[ #x09]*'elif' _preproc_expression '\n' _top_level_item* ( preproc_else | preproc_elif )?
preproc_if_in_field_declaration_list ::=
'#'[ #x09]*'if' _preproc_expression '\n' _field_declaration_list_item* ( preproc_else_in_field_declaration_list | preproc_elif_in_field_declaration_list )? '#'[ #x09]*'endif'
preproc_ifdef_in_field_declaration_list ::=
( '#'[ #x09]*'ifdef' | '#'[ #x09]*'ifndef' ) identifier _field_declaration_list_item* ( preproc_else_in_field_declaration_list | preproc_elif_in_field_declaration_list )? '#'[ #x09]*'endif'
preproc_else_in_field_declaration_list ::=
'#'[ #x09]*'else' _field_declaration_list_item*
preproc_elif_in_field_declaration_list ::=
'#'[ #x09]*'elif' _preproc_expression '\n' _field_declaration_list_item* ( preproc_else_in_field_declaration_list | preproc_elif_in_field_declaration_list )?
preproc_directive ::=
'#'[ #x09]*[a-zA-Z][a-zA-Z_]*
preproc_arg ::=
'.'|'\#x0D'?'#x0A'+
_preproc_expression ::=
preproc_has_include
| identifier
| preproc_call_expression
| number_literal
| char_literal
| preproc_defined
| preproc_unary_expression
| preproc_binary_expression
| preproc_parenthesized_expression
preproc_parenthesized_expression ::=
'(' _preproc_expression ')'
preproc_defined ::=
'defined' '(' identifier ')'
| 'defined' identifier
preproc_unary_expression ::=
( '!' | '~' | '-' | '+' ) _preproc_expression
preproc_call_expression ::=
identifier preproc_argument_list
preproc_argument_list ::=
'(' ( _preproc_expression ( ',' _preproc_expression )* )? ')'
preproc_binary_expression ::=
_preproc_expression '+' _preproc_expression
| _preproc_expression '-' _preproc_expression
| _preproc_expression '*' _preproc_expression
| _preproc_expression '/' _preproc_expression
| _preproc_expression '%' _preproc_expression
| _preproc_expression '||' _preproc_expression
| _preproc_expression '&&' _preproc_expression
| _preproc_expression '|' _preproc_expression
| _preproc_expression '^' _preproc_expression
| _preproc_expression '&' _preproc_expression
| _preproc_expression '==' _preproc_expression
| _preproc_expression '!=' _preproc_expression
| _preproc_expression '>' _preproc_expression
| _preproc_expression '>=' _preproc_expression
| _preproc_expression '<=' _preproc_expression
| _preproc_expression '<' _preproc_expression
| _preproc_expression '<<' _preproc_expression
| _preproc_expression '>>' _preproc_expression
function_definition ::=
ms_call_modifier? _declaration_specifiers _declarator compound_statement
declaration ::=
swift_name_attribute_sepcifier? _declaration_specifiers ( _declarator | init_declarator ) ( ',' ( _declarator | init_declarator ) )* attribute_specifier? type_qualifier? ';'
type_definition ::=
attribute_specifier? swift_name_attribute_sepcifier? 'typedef' ( attribute_specifier? type_qualifier* _type_specifier attribute_specifier? type_qualifier* _type_declarator | attribute_specifier? type_qualifier* ns_enum_specifier attribute_specifier? type_qualifier* _type_declarator? ) ( identifier | attribute_specifier )? ';'
_declaration_specifiers ::=
( storage_class_specifier | type_qualifier | attribute_specifier | ms_declspec_modifier )* _type_specifier ( storage_class_specifier | type_qualifier | attribute_specifier | ms_declspec_modifier )*
linkage_specification ::=
'extern' string_literal ( function_definition | declaration | declaration_list )
attribute_specifier ::=
( '__attribute' | '__attribute__' ) '(' argument_list ')' | method_attribute_specifier | method_variadic_arguments_attribute_specifier | availability_attribute_specifier
ms_declspec_modifier ::=
'__declspec' '(' identifier ')'
ms_based_modifier ::=
'__based' argument_list
ms_call_modifier ::=
'__cdecl'
| '__clrcall'
| '__stdcall'
| '__fastcall'
| '__thiscall'
| '__vectorcall'
ms_restrict_modifier ::=
'__restrict'
ms_unsigned_ptr_modifier ::=
'__uptr'
ms_signed_ptr_modifier ::=
'__sptr'
ms_unaligned_ptr_modifier ::=
'_unaligned'
| '__unaligned'
ms_pointer_modifier ::=
ms_unaligned_ptr_modifier
| ms_restrict_modifier
| ms_unsigned_ptr_modifier
| ms_signed_ptr_modifier
declaration_list ::=
'{' _top_level_item* '}'
_declarator ::=
pointer_declarator
| function_declarator
| array_declarator
| parenthesized_declarator
| identifier
| block_declarator
_field_declarator ::=
pointer_field_declarator
| function_field_declarator
| array_field_declarator
| parenthesized_field_declarator
| _field_identifier
| block_declarator
_type_declarator ::=
pointer_type_declarator
| function_type_declarator
| array_type_declarator
| parenthesized_type_declarator
| _type_identifier
| block_declarator
_abstract_declarator ::=
abstract_pointer_declarator
| abstract_function_declarator
| abstract_array_declarator
| abstract_parenthesized_declarator
| block_abstract_declarator
parenthesized_declarator ::=
'(' _declarator ')'
parenthesized_field_declarator ::=
'(' _field_declarator ')'
parenthesized_type_declarator ::=
'(' _type_declarator ')'
abstract_parenthesized_declarator ::=
'(' _abstract_declarator ')'
pointer_declarator ::=
ms_based_modifier? '*' ms_pointer_modifier* type_qualifier* _declarator
pointer_field_declarator ::=
ms_based_modifier? '*' ms_pointer_modifier* type_qualifier* _field_declarator
pointer_type_declarator ::=
ms_based_modifier? '*' ms_pointer_modifier* type_qualifier* _type_declarator
abstract_pointer_declarator ::=
'*' type_qualifier* _abstract_declarator?
function_declarator ::=
_declarator parameter_list attribute_specifier*
function_field_declarator ::=
_field_declarator parameter_list
function_type_declarator ::=
_type_declarator parameter_list
abstract_function_declarator ::=
_abstract_declarator? parameter_list
array_declarator ::=
_declarator '[' type_qualifier* ( _expression | '*' )? ']'
array_field_declarator ::=
_field_declarator '[' type_qualifier* ( _expression | '*' )? ']'
array_type_declarator ::=
_type_declarator '[' type_qualifier* ( _expression | '*' )? ']'
abstract_array_declarator ::=
_abstract_declarator? '[' type_qualifier* ( _expression | '*' )? ']'
init_declarator ::=
_declarator '=' ( initializer_list | _expression )
compound_statement ::=
'{' _top_level_item* '}'
storage_class_specifier ::=
'extern'
| 'static'
| 'auto'
| 'register'
| 'inline'
| 'FOUNDATION_EXPORT'|'FOUNDATION_EXTERN'|'FOUNDATION_STATIC_INLINE'|'NS_INLINE'|'UIKIT_EXTERN'|'CG_EXTERN'|'CG_INLINE'
type_qualifier ::=
'const'
| 'volatile'
| 'restrict'
| '_Atomic'
| 'in'
| 'out'
| 'inout'
| 'bycopy'
| 'byref'
| 'oneway'
| '_Nullable'
| '_Nonnull'
| '_Nullable_result'
| '_Null_unspecified'
| '__autoreleasing'
| '__nullable'
| '__nonnull'
| '__strong'
| '__weak'
| '__bridge'
| '__bridge_transfer'
| '__bridge_retained'
| '__unsafe_unretained'
| '__block'
| '__kindof'
| '__unused'
| '_Complex'
| '__complex'
| 'IBOutlet'
| 'IBInspectable'
| 'NS_VALID_UNTIL_END_OF_SCOPE'
_type_specifier ::=
struct_specifier
| union_specifier
| enum_specifier
| macro_type_specifier
| sized_type_specifier
| primitive_type
| _type_identifier
| id
| SEL
| IMP
| Class
| BOOL
| auto
| instancetype
| ns_enum_specifier
| typeof_specifier
| atomic_specifier
| generic_type_specifier
sized_type_specifier ::=
( 'signed' | 'unsigned' | 'long' | 'short' )+ ( _type_identifier | primitive_type )?
primitive_type ::=
( 'bool' | 'char' | 'int' | 'float' | 'double' | 'void' | 'size_t' | 'ssize_t' | 'intptr_t' | 'uintptr_t' | 'charptr_t' | 'int8_t' | 'int16_t' | 'int32_t' | 'int64_t' | 'uint8_t' | 'uint16_t' | 'uint32_t' | 'uint64_t' | 'char8_t' | 'char16_t' | 'char32_t' | 'char64_t' )
enum_specifier ::=
'enum' ( _type_identifier? ( ':' _type_specifier )? enumerator_list? | enumerator_list )
enumerator_list ::=
'{' ( enumerator ( ',' enumerator )* )? ','? '}'
struct_specifier ::=
'struct' attribute_specifier? ( _type_identifier superclass_reference? field_declaration_list? | field_declaration_list )
| 'struct' attribute_specifier? identifier? ( '@defs' '(' identifier ')' )
union_specifier ::=
'union' ms_declspec_modifier? ( _type_identifier field_declaration_list? | field_declaration_list )
field_declaration_list ::=
'{' _field_declaration_list_item* '}'
_field_declaration_list_item ::=
field_declaration
| preproc_def
| preproc_function_def
| preproc_call
| preproc_if_in_field_declaration_list
| preproc_ifdef_in_field_declaration_list
field_declaration ::=
_declaration_specifiers ( _field_declarator ( ',' _field_declarator )* )? bitfield_clause? ';'
bitfield_clause ::=
':' _expression
enumerator ::=
identifier ( '=' _expression )? ( attribute_specifier | swift_name_attribute_sepcifier )*
parameter_list ::=
'(' ( ( parameter_declaration | '...' ) ( ',' ( parameter_declaration | '...' ) )* )? ')'
parameter_declaration ::=
_declaration_specifiers ( _declarator | _abstract_declarator )?
_statement ::=
case_statement
| _non_case_statement
_non_case_statement ::=
labeled_statement
| compound_statement
| expression_statement
| if_statement
| switch_statement
| do_statement
| while_statement
| for_statement
| return_statement
| break_statement
| continue_statement
| goto_statement
| autoreleasepool_statement
| synchronized_statement
| for_in_statement
| try_catch_statement
| throw_statement
labeled_statement ::=
_statement_identifier ':' _statement
expression_statement ::=
( _expression | comma_expression )? ';'
if_statement ::=
'if' parenthesized_expression _statement ( 'else' _statement )?
switch_statement ::=
'switch' parenthesized_expression compound_statement
case_statement ::=
( 'case' _expression | 'default' ) ':' ( _non_case_statement | declaration | type_definition )*
while_statement ::=
'while' parenthesized_expression _statement
do_statement ::=
'do' _statement 'while' parenthesized_expression ';'
for_statement ::=
'for' '(' ( declaration | ( _expression | comma_expression )? ';' ) _expression? ';' ( _expression | comma_expression )? ')' _statement
return_statement ::=
'return' ( _expression | comma_expression )? ';'
break_statement ::=
'break' ';'
continue_statement ::=
'continue' ';'
goto_statement ::=
'goto' _statement_identifier ';'
_expression ::=
conditional_expression
| assignment_expression
| binary_expression
| unary_expression
| update_expression
| cast_expression
| pointer_expression
| sizeof_expression
| subscript_expression
| call_expression
| field_expression
| compound_literal_expression
| identifier
| number_literal
| string_literal
| true
| false
| null
| concatenated_string
| char_literal
| parenthesized_expression
| self
| super
| nil
| YES
| NO
| message_expression
| selector_expression
| protocol_expression
| encode_expression
| number_expression
| string_expression
| object_expression
| dictionary_expression
| array_expression
| boolean_expression
| block_expression
| available_expression
| statement_expression
| va_arg_expression
comma_expression ::=
_expression ',' ( _expression | comma_expression )
conditional_expression ::=
_expression '?' _expression ':' _expression | _expression '?' ':' _expression
_assignment_left_expression ::=
identifier
| call_expression
| field_expression
| pointer_expression
| subscript_expression
| parenthesized_expression
| self
assignment_expression ::=
_assignment_left_expression ( '=' | '*=' | '/=' | '%=' | '+=' | '-=' | '<<=' | '>>=' | '&=' | '^=' | '|=' ) _expression
pointer_expression ::=
( '*' | '&' ) _expression
unary_expression ::=
( '!' | '~' | '-' | '+' ) _expression
binary_expression ::=
_expression '+' _expression
| _expression '-' _expression
| _expression '*' _expression
| _expression '/' _expression
| _expression '%' _expression
| _expression '||' _expression
| _expression '&&' _expression
| _expression '|' _expression
| _expression '^' _expression
| _expression '&' _expression
| _expression '==' _expression
| _expression '!=' _expression
| _expression '>' _expression
| _expression '>=' _expression
| _expression '<=' _expression
| _expression '<' _expression
| _expression '<<' _expression
| _expression '>>' _expression
update_expression ::=
( '--' | '++' ) _expression | _expression ( '--' | '++' )
cast_expression ::=
'(' ( type_descriptor | block_abstract_declarator ) ')' _expression
type_descriptor ::=
type_qualifier* _type_specifier type_qualifier* _abstract_declarator?
sizeof_expression ::=
'sizeof' ( _expression | '(' type_descriptor ')' )
subscript_expression ::=
_expression '[' _expression ']'
call_expression ::=
_expression argument_list
argument_list ::=
'(' ( _expression ( ',' _expression )* )? ')'
field_expression ::=
_expression ( '.' | '->' ) _field_identifier
compound_literal_expression ::=
'(' type_descriptor ')' initializer_list
parenthesized_expression ::=
'(' ( _expression | comma_expression ) ')'
initializer_list ::=
'{' ( ( initializer_pair | _expression | initializer_list ) ( ',' ( initializer_pair | _expression | initializer_list ) )* )? ','? '}'
initializer_pair ::=
( subscript_designator | field_designator )+ '=' ( _expression | initializer_list )
subscript_designator ::=
'[' _expression ']'
field_designator ::=
'.' _field_identifier
number_literal ::=
( [-\+]? ( '0x' | '0b' )? ( ( [0-9]+ ( "'" [0-9]+ )* | '0b' [0-9]+ ( "'" [0-9]+ )* | '0x' [0-9a-fA-F]+ ( "'" [0-9a-fA-F]+ )* ) ( '.' ( [0-9a-fA-F]+ ( "'" [0-9a-fA-F]+ )* )? )? | '.' [0-9]+ ( "'" [0-9]+ )* ) ( [eEpP] ( [-\+]? [0-9a-fA-F]+ ( "'" [0-9a-fA-F]+ )* )? )? ( 'u' | 'l' | 'U' | 'L' | 'f' | 'F' )* )
char_literal ::=
( "L'" | "u'" | "U'" | "u8'" | "'" ) ( escape_sequence | [^#x0A'] ) "'"
concatenated_string ::=
string_literal string_literal+
string_literal ::=
( 'L"' | 'u"' | 'U"' | 'u8"' | '"' ) ( [^\"#x0A]+ | escape_sequence )* '"'
escape_sequence ::=
'\\' ( [^xuU] | [0-9]'{2,3}' | 'x'[0-9a-fA-F]'{2,}' | 'u'[0-9a-fA-F]'{4}' | 'U'[0-9a-fA-F]'{8}' )
system_lib_string ::=
( '<' ( [^>#x0A] | '\>' )* '>' )
true ::=
( 'TRUE' | 'true' )
false ::=
( 'FALSE' | 'false' )
null ::=
'NULL'
identifier ::=
[$a-zA-Z_]([a-zA-Z_]|'\$')*
_type_identifier ::=
identifier
_field_identifier ::=
identifier
_statement_identifier ::=
identifier
_empty_declaration ::=
_type_specifier ';'
macro_type_specifier ::=
identifier '(' type_descriptor ')'
comment ::=
( '//' ('\'('.'|'#x0D'?'#x0A')|[^\#x0A])* | '/*' [^*]*'\'*+([^/*][^*]*'\'*+)* '/' )
_name ::=
identifier
_import ::=
preproc_import
| module_import
preproc_import ::=
'#import' ( system_lib_string | string_literal )
module_import ::=
'@import' module_string
module_string ::=
[a-zA-Z_][a-zA-Z_]*('.'[a-zA-Z_][a-zA-Z_]*)*
_ns_assume_nonnull_declaration ::=
'NS_ASSUME_NONNULL_BEGIN'|'NS_ASSUME_NONNULL_END'|'CF_EXTERN_C_BEGIN'|'CF_EXTERN_C_END'
compatibility_alias_declaration ::=
'@compatibility_alias' identifier identifier ';'
protocol_forward_declaration ::=
'@protocol' _name ( ',' _name )* ';'
class_forward_declaration ::=
'@class' _name ( protocol_qualifiers | parameterized_class_type_arguments )? ( ',' _name ( protocol_qualifiers | parameterized_class_type_arguments )? )* ';'
class_interface ::=
class_interface_attribute_sepcifier? swift_name_attribute_sepcifier? attribute_specifier* '@interface' ( _name parameterized_class_type_arguments? | generics_type_reference ) superclass_reference? parameterized_class_type_arguments? protocol_qualifiers _instance_variables? _interface_declaration? '@end'
| class_interface_attribute_sepcifier? swift_name_attribute_sepcifier? attribute_specifier* '@interface' ( _name parameterized_class_type_arguments? protocol_qualifiers? | generics_type_reference ) superclass_reference? _instance_variables? _interface_declaration? '@end'
category_interface ::=
'@interface' ( _name parameterized_class_type_arguments? protocol_qualifiers? | generics_type_reference ) '(' identifier? ')' protocol_qualifiers? _instance_variables? _interface_declaration? '@end'
protocol_declaration ::=
swift_name_attribute_sepcifier? attribute_specifier? '@protocol' _name protocol_qualifiers? _interface_declaration? '@end'
superclass_reference ::=
':' _name generic_type_references?
protocol_qualifiers ::=
'<' _protocol_identifier ( ',' _protocol_identifier )* '>'
_protocol_identifier ::=
identifier
parameterized_class_type_arguments ::=
'<' _parameterized_class_type_arguments ( ',' _parameterized_class_type_arguments )* '>'
_parameterized_class_type_arguments ::=
( '__covariant' | '__contravariant' )? identifier ( ':' type_descriptor )?
generics_type_reference ::=
'__GENERICS' '(' _name ( ',' _type_specifier )* ')'
_instance_variables ::=
'{' _instance_variable_declaration* '}'
_instance_variable_declaration ::=
_visibility_specification
| field_declaration
_visibility_specification ::=
private
| public
| protected
| package
private ::=
'@private'
public ::=
'@public'
protected ::=
'@protected'
package ::=
'@package'
_interface_declaration ::=
( _ns_assume_nonnull_declaration | _interface_declaration_specifier | declaration | method_declaration | property_declaration | _empty_declaration | type_definition | preproc_def | preproc_function_def )+
_interface_declaration_specifier ::=
optional
| required
optional ::=
'@optional'
required ::=
'@required'
method_declaration ::=
_class_member_scope _method_argument_type_specifier? _method_selector ( attribute_specifier | swift_name_attribute_sepcifier )* ';'
_class_member_scope ::=
class_scope
| instance_scope
class_scope ::=
'+'
instance_scope ::=
'-'
property_declaration ::=
'@property' property_attributes? attribute_specifier? type_qualifier* _type_specifier attribute_specifier? type_qualifier* _declarator ( ',' _declarator )* attribute_specifier* swift_name_attribute_sepcifier? ';'
property_attributes ::=
'(' ( _property_attribute ( ',' _property_attribute )* )? ')'
_property_attribute ::=
getter
| setter
| nonnull
| nullable
| null_resettable
| unsafe_unretained
| null_unspecified
| direct
| readwrite
| readonly
| strong
| weak
| copy
| assign
| retain
| atomic
| nonatomic
| class
| NS_NONATOMIC_IOSONLY
| DISPATCH_QUEUE_REFERENCE_TYPE
class_interface_attribute_sepcifier ::=
'IB_DESIGNABLE'|'NS_ROOT_CLASS'
method_attribute_specifier ::=
'NS_DESIGNATED_INITIALIZER'|'NS_REQUIRES_SUPER'|'CF_RETURNS_RETAINED'|'CF_RETURNS_NOT_RETAINED'|'NS_REQUIRES_NIL_TERMINATION'|'NS_DIRECT'
method_variadic_arguments_attribute_specifier ::=
( 'NS_FORMAT_FUNCTION' | 'CF_FORMAT_FUNCTION' ) '(' number_literal ',' number_literal ')'
availability_attribute_specifier ::=
'NS_UNAVAILABLE' | 'DEPRECATED_ATTRIBUTE' | 'UI_APPEARANCE_SELECTOR' | 'UNAVAILABLE_ATTRIBUTE' | ( 'NS_AVAILABLE' | '__IOS_AVAILABLE' | 'NS_AVAILABLE_IOS' | 'API_AVAILABLE' | 'API_UNAVAILABLE' | 'API_DEPRECATED' | 'NS_ENUM_AVAILABLE_IOS' | 'NS_DEPRECATED_IOS' | 'NS_ENUM_DEPRECATED_IOS' | 'DEPRECATED_MSG_ATTRIBUTE' | '__deprecated_msg' | '__deprecated_enum_msg' | 'NS_SWIFT_UNAVAILABLE' | 'NS_EXTENSION_UNAVAILABLE_IOS' | 'NS_CLASS_AVAILABLE_IOS' | 'NS_CLASS_DEPRECATED_IOS' ) '(' ( string_literal | platform_version ) ( ',' ( string_literal | platform_version ) )* ')'
platform_version ::=
[0-9]+'_'[0-9]+
| number_literal
| platform
| platform '(' ( ( [0-9]+'_'[0-9]+ | number_literal | identifier ) ( ',' ( [0-9]+'_'[0-9]+ | number_literal | identifier ) )* ) ')'
platform ::=
'ios'
| 'tvos'
| 'macos'
| 'macosx'
| 'watchos'
swift_name_attribute_sepcifier ::=
'NS_REFINED_FOR_SWIFT'
| 'NS_SWIFT_NAME' '(' identifier? identifier ( '(' ( _type_specifier* ':' )* ')' )? ')'
getter ::=
'getter' '=' _name
setter ::=
'setter' '=' _name ':'?
nonnull ::=
'nonnull'
nullable ::=
'nullable'
null_resettable ::=
'null_resettable'
unsafe_unretained ::=
'unsafe_unretained'
null_unspecified ::=
'null_unspecified'
direct ::=
'direct'
readwrite ::=
'readwrite'
readonly ::=
'readonly'
strong ::=
'strong'
weak ::=
'weak'
copy ::=
'copy'
assign ::=
'assign'
retain ::=
'retain'
atomic ::=
'atomic'
nonatomic ::=
'nonatomic'
class ::=
'class'
NS_NONATOMIC_IOSONLY ::=
'NS_NONATOMIC_IOSONLY'
DISPATCH_QUEUE_REFERENCE_TYPE ::=
'DISPATCH_QUEUE_REFERENCE_TYPE'
class_implementation ::=
attribute_specifier? '@implementation' _name superclass_reference? 'NS_UNAVAILABLE'? _instance_variables? _implementation_definition? '@end'
category_implementation ::=
attribute_specifier? '@implementation' _name '(' identifier ')' _implementation_definition? '@end'
_implementation_definition ::=
( _ns_assume_nonnull_declaration | function_definition | declaration | synthesize_definition | dynamic_definition | method_definition | type_definition | preproc_def | preproc_function_def )+
synthesize_definition ::=
'@synthesize' synthesize_property ( ',' synthesize_property )* ';'
synthesize_property ::=
identifier ( '=' identifier )?
dynamic_definition ::=
'@dynamic' identifier ( ',' identifier )* ';'
method_definition ::=
_class_member_scope _method_argument_type_specifier? _method_selector attribute_specifier? ';'? compound_statement ';'?
_method_selector ::=
_unary_selector
| keyword_selector ( ',' '...' )?
_unary_selector ::=
identifier
keyword_selector ::=
keyword_declarator+
keyword_declarator ::=
identifier? ':' _method_argument_type_specifier? _name '__unused'?
_method_argument_type_specifier ::=
'(' _argument_type_declarator ')' attribute_specifier?
_argument_type_declarator ::=
( nullable | nonnull )? 'NS_NOESCAPE'? _declaration_specifiers ( _declarator | _abstract_declarator )? attribute_specifier*
ns_enum_specifier ::=
( 'NS_ENUM' | 'NS_ERROR_ENUM' | 'NS_OPTIONS' ) '(' _type_specifier ( ',' _type_identifier )? ')' enumerator_list?
typeof_specifier ::=
( 'typeof' | '__typeof' | '__typeof__' ) '(' _expression ')'
atomic_specifier ::=
'_Atomic' '(' type_descriptor ')'
generic_type_specifier ::=
( _type_identifier | id | Class ) ( protocol_qualifiers | generic_type_references )+
generic_type_references ::=
'<' type_descriptor ( ',' type_descriptor )* '>'
block_abstract_declarator ::=
'(' 'NS_NOESCAPE'? type_qualifier? '^' type_qualifier? ')' parameter_list
block_declarator ::=
'(' '^' ( type_qualifier* identifier type_qualifier* | block_declarator ) ')' parameter_list
block_expression ::=
'^' ( type_descriptor | type_qualifier )? parameter_list? compound_statement
self ::=
'self'
super ::=
'super'
nil ::=
'nil'
id ::=
'id'
instancetype ::=
'instancetype'
Class ::=
'Class'
Method ::=
'Method'
SEL ::=
'SEL'
IMP ::=
'IMP'
BOOL ::=
'BOOL'
auto ::=
'__auto_type'
autoreleasepool_statement ::=
'@autoreleasepool' _statement
synchronized_statement ::=
'@synchronized' parenthesized_expression _statement
for_in_statement ::=
'for' '(' _argument_type_declarator 'in' _expression ')' _statement
try_catch_statement ::=
'@try' _statement ( '@catch' ( '(' ( parameter_declaration | '...' ) ')' ) _statement )* ( '@finally' _statement )?
throw_statement ::=
'@throw' ( _expression | comma_expression )? ';'
message_expression ::=
'[' _receiver _message_selector ']'
_receiver ::=
_type_specifier
| _expression
_message_selector ::=
identifier
| keyword_argument_list
keyword_argument_list ::=
keyword_argument+
keyword_argument ::=
identifier? ':' ( _expression | _variadic_arguments )
_variadic_arguments ::=
_expression ( ',' _expression )*
selector_expression ::=
'@selector' '(' _selector_name ')'
_selector_name ::=
_name
| _keyword_name+
_keyword_name ::=
_name ':'
| ':'
protocol_expression ::=
'@protocol' '(' _name ')'
encode_expression ::=
'@encode' '(' type_descriptor ')'
number_expression ::=
'@' ( '(' ( number_literal | "'" [A-Za-z0-9] "'" ) ')' | ( number_literal | "'" [A-Za-z0-9] "'" ) )
string_expression ::=
'@' string_literal ( '@'? string_literal )*
object_expression ::=
'@' '(' _expression? ')'
dictionary_expression ::=
'@' '{' _dictionary_key_value_list? '}'
_dictionary_key_value_list ::=
_dictionary_key_value_pair ( ',' _dictionary_key_value_pair )* ','?
_dictionary_key_value_pair ::=
_expression ':' _expression
array_expression ::=
'@' '[' ( _expression ( ',' _expression )* )? ','? ']'