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Dart.g
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// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// CHANGES:
//
// v0.52 Support static access shorthands.
//
// v0.51 Support a `switchExpression` with no cases.
//
// v0.50 Add support for digit separators in numeric literals.
//
// v0.49 Add support for static and top-level members with no implementation.
//
// v0.48 Add support for enhanced parts.
//
// v0.47 Make `augment` a built-in identifier (this happened in the feature
// specification v1.10, but wasn't done here at the time).
//
// v0.46 Rename `libraryDefinition` to `libraryDeclaration`, as in the
// language specification. Add support for libraries with imports.
//
// v0.45 Update rule about augmenting extension type declaration to omit
// the primary constructor.
//
// v0.44 Support null-aware elements.
//
// v0.43 Change rule structure such that the association of metadata
// with non-terminals can be explained in a simple and consistent way.
// The derivable terms do not change. Remove `metadata` from the kind
// of `forLoopParts` where the iteration variable is an existing variable
// in scope (this is not implemented, is inconsistent anyway).
//
// v0.42 Support updated augmented `extensionDeclaration`.
//
// v0.41 Add missing `enumEntry` update for augmentations.
//
// v0.40 Include support for augmentation libraries.
//
// v0.39 Include latest changes to mixin related class modifiers.
//
// v0.38 Broaden `initializerExpression` to match implemented behavior.
//
// v0.37 Correct `libraryExport` to use `configurableUri`, not `uri`.
//
// v0.36 Update syntax from `inline class` to `extension type`, including
// a special case of primary constructors.
//
// v0.35 Change named optional parameter syntax to require '=', that is,
// remove the support for ':' as in `void f({int i: 1})`.
//
// v0.34 Add support for inline classes.
//
// v0.33 This commit does not change the derived language at all. It just
// changes several rules to use the regexp-like grammar operators to simplify
// onParts, recordLiteralNoConst, functionTypeTails, and functionType.
//
// v0.32 Remove unused non-terminal `patterns`.
//
// v0.31 Inline `identifierNotFUNCTION` into `identifier`. Replace all
// other references with `identifier` to match the spec.
//
// v0.30 Add support for the class modifiers `sealed`, `final`, `base`,
// `interface`, and for `mixin class` declarations. Also add support for
// unnamed libraries (`library;`). Introduce `otherIdentifier` to help
// maintaining consistency when the grammar is modified to mention any words
// that weren't previously mentioned, yet are not reserved or built-in.
//
// v0.29 Add an alternative in the `primary` rule to enable method invocations
// of the form `super(...)` and `super<...>(...)`. This was added to the
// language specification in May 21, b26e7287c318c0112610fe8b7e175289792dfde2,
// but the corresponding update here wasn't done here at the time.
//
// v0.28 Add support for `new` in `enumEntry`, e.g., `enum E { x.new(); }`.
// Add `identifierOrNew` non-terminal to simplify the grammar.
//
// v0.27 Remove unused non-terminals; make handling of interpolation in URIs
// consistent with the language specification. Make `partDeclaration` a
// start symbol in addition to `libraryDefinition` (such that no special
// precautions are needed in order to parse a part file). Corrected spacing
// in several rules.
//
// v0.26 Add missing `metadata` in `partDeclaration`.
//
// v0.25 Update pattern rules following changes to the patterns feature
// specification since v0.24.
//
// v0.24 Change constant pattern rules to allow Symbols and negative numbers.
//
// v0.23 Change logical pattern rules to || and &&.
//
// v0.22 Change pattern rules, following updated feature specification.
//
// v0.21 Add support for patterns.
//
// v0.20 Adjust record syntax such that () is allowed (denoting the empty
// record type and the empty record value).
//
// v0.19 Add support for super parameters, named arguments everywhere, and
// records.
//
// v0.18 Add support for enhanced `enum` declarations.
//
// v0.17 (58d917e7573c359580ade43845004dbbc62220d5) Correct `uri` to allow
// multi-line strings (raw and non-raw).
//
// v0.16 (284695f1937c262523a9a11b9084213f889c83e0) Correct instance variable
// declaration syntax such that `covariant late final` is allowed.
//
// v0.15 (6facd6dfdafa2953e8523348220d3129ea884678) Add support for
// constructor tearoffs and explicitly instantiated function tearoffs and
// type literals.
//
// v0.14 (f65c20124edd9e04f7b3a6f014f40c16f51052f6) Correct `partHeader`
// to allow uri syntax in a `PART OF` directive.
//
// v0.13 (bb5cb79a2fd57d6a480b922bc650d5cd15948753) Introduce non-terminals
// `builtinIdentifier` and `reservedWord`; update `typeAlias` to enable
// non-function type aliases; add missing `metadata` to formal parameter
// declarations; correct `symbolLiteral` to allow `VOID`;
// v0.12 (82403371ac00ddf004be60fa7b705474d2864509) Cf. language issue #1341:
// correct `metadata`. Change `qualifiedName` such that it only includes the
// cases with a '.'; the remaining case is added where `qualifiedName` is used.
//
// v0.11 (67c703063d5b68c9e132edbaf34dfe375851f5a6) Corrections, mainly:
// `fieldFormalParameter` now allows `?` on the parameter type; cascade was
// reorganized in the spec, it is now reorganized similarly here; `?` was
// removed from argumentPart (null-aware invocation was never added).
//
// v0.10 (8ccdb9ae796d543e4ad8f339c847c02b09018d2d) Simplify grammar by making
// `constructorInvocation` an alternative in `primary`.
//
// v0.9 (f4d7951a88e1b738e22b768c3bc72bf1a1062365) Introduce abstract and
// external variables.
//
// v0.8 (a9ea9365ad8a3e3b59115bd889a55b6aa2c5a5fa) Change null-aware
// invocations of `operator []` and `operator []=` to not have a period.
//
// v0.7 (6826faf583f6a543b1a0e2e85bd6a8042607ce00) Introduce extension and
// mixin declarations. Revise rules about string literals and string
// interpolation. Reorganize "keywords" (built-in identifiers, reserved words,
// other words that are specified in the grammar and not parsed as IDENTIFIER)
// into explicitly marked groups. Change the cascade syntax to be
// compositional.
//
// v0.6 (a58052974ec2b4b334922c5227b043ed2b9c2cc5) Introduce syntax associated
// with null safety.
//
// v0.5 (56793b3d4714d4818d855a72074d5295489aef3f) Stop treating `ASYNC` as a
// conditional reserved word (only `AWAIT` and `YIELD` get this treatment).
//
// v0.4 Added support for 'unified collections' (spreads and control flow
// in collection literals).
//
// v0.3 Updated to use ANTLR v4 rather than antlr3.
//
// v0.2 Changed top level variable declarations to avoid redundant and
// misleading occurrence of (FINAL|CONST).
//
// v0.1 First version available in the SDK github repository. Covers the
// Dart language as specified in the language specification based on the
// many grammar rule snippets. That grammar was then adjusted to remove
// known issues (e.g., misplaced metadata) and to resolve ambiguities.
grammar Dart;
@parser::header{
import java.util.Stack;
}
@lexer::header{
import java.util.Stack;
}
@parser::members {
static String filePath = null;
static boolean errorHasOccurred = false;
/// Must be invoked before the first error is reported for a library.
/// Will print the name of the library and indicate that it has errors.
static void prepareForErrors() {
errorHasOccurred = true;
System.err.println("Syntax error in " + filePath + ":");
}
/// Parse library, return true if success, false if errors occurred.
public boolean parseLibrary(String filePath) throws RecognitionException {
this.filePath = filePath;
errorHasOccurred = false;
startSymbol();
return !errorHasOccurred;
}
// Enable the parser to treat AWAIT/YIELD as keywords in the body of an
// `async`, `async*`, or `sync*` function. Access via methods below.
private Stack<Boolean> asyncEtcAreKeywords = new Stack<Boolean>();
{ asyncEtcAreKeywords.push(false); }
// Use this to indicate that we are now entering an `async`, `async*`,
// or `sync*` function.
void startAsyncFunction() { asyncEtcAreKeywords.push(true); }
// Use this to indicate that we are now entering a function which is
// neither `async`, `async*`, nor `sync*`.
void startNonAsyncFunction() { asyncEtcAreKeywords.push(false); }
// Use this to indicate that we are now leaving any function.
void endFunction() { asyncEtcAreKeywords.pop(); }
// Whether we can recognize AWAIT/YIELD as an identifier/typeIdentifier.
boolean asyncEtcPredicate(int tokenId) {
if (tokenId == AWAIT || tokenId == YIELD) {
return !asyncEtcAreKeywords.peek();
}
return false;
}
}
@lexer::members{
public static final int BRACE_NORMAL = 1;
public static final int BRACE_SINGLE = 2;
public static final int BRACE_DOUBLE = 3;
public static final int BRACE_THREE_SINGLE = 4;
public static final int BRACE_THREE_DOUBLE = 5;
// Enable the parser to handle string interpolations via brace matching.
// The top of the `braceLevels` stack describes the most recent unmatched
// '{'. This is needed in order to enable/disable certain lexer rules.
//
// NORMAL: Most recent unmatched '{' was not string literal related.
// SINGLE: Most recent unmatched '{' was `'...${`.
// DOUBLE: Most recent unmatched '{' was `"...${`.
// THREE_SINGLE: Most recent unmatched '{' was `'''...${`.
// THREE_DOUBLE: Most recent unmatched '{' was `"""...${`.
//
// Access via functions below.
private Stack<Integer> braceLevels = new Stack<Integer>();
// Whether we are currently in a string literal context, and which one.
boolean currentBraceLevel(int braceLevel) {
if (braceLevels.empty()) return false;
return braceLevels.peek() == braceLevel;
}
// Use this to indicate that we are now entering a specific '{...}'.
// Call it after accepting the '{'.
void enterBrace() {
braceLevels.push(BRACE_NORMAL);
}
void enterBraceSingleQuote() {
braceLevels.push(BRACE_SINGLE);
}
void enterBraceDoubleQuote() {
braceLevels.push(BRACE_DOUBLE);
}
void enterBraceThreeSingleQuotes() {
braceLevels.push(BRACE_THREE_SINGLE);
}
void enterBraceThreeDoubleQuotes() {
braceLevels.push(BRACE_THREE_DOUBLE);
}
// Use this to indicate that we are now exiting a specific '{...}',
// no matter which kind. Call it before accepting the '}'.
void exitBrace() {
// We might raise a parse error here if the stack is empty, but the
// parsing rules should ensure that we get a parse error anyway, and
// it is not a big problem for the spec parser even if it misinterprets
// the brace structure of some programs with syntax errors.
if (!braceLevels.empty()) braceLevels.pop();
}
}
// ---------------------------------------- Grammar rules.
startSymbol
: libraryDeclaration
| partDeclaration
;
libraryDeclaration
: FEFF? SCRIPT_TAG?
libraryName?
importOrExport*
partDirective*
(metadata topLevelDefinition)*
EOF
;
topLevelDefinition
: classDeclaration
| mixinDeclaration
| extensionTypeDeclaration
| extensionDeclaration
| enumType
| typeAlias
| AUGMENT? EXTERNAL functionSignature ';'
| AUGMENT? EXTERNAL getterSignature ';'
| AUGMENT? EXTERNAL setterSignature ';'
| AUGMENT? EXTERNAL finalVarOrType identifierList ';'
| AUGMENT? getterSignature (functionBody | ';')
| AUGMENT? setterSignature (functionBody | ';')
| AUGMENT? functionSignature (functionBody | ';')
| AUGMENT? (FINAL | CONST) type? initializedIdentifierList ';'
| AUGMENT? LATE FINAL type? initializedIdentifierList ';'
| AUGMENT? LATE? varOrType initializedIdentifierList ';'
;
declaredIdentifier
: COVARIANT? finalConstVarOrType identifier
;
finalConstVarOrType
: LATE? FINAL type?
| CONST type?
| LATE? varOrType
;
finalVarOrType
: FINAL type?
| varOrType
;
varOrType
: VAR
| type
;
initializedIdentifier
: identifier ('=' expression)?
;
initializedIdentifierList
: initializedIdentifier (',' initializedIdentifier)*
;
functionSignature
: type? identifier formalParameterPart
;
functionBody
: '=>' { startNonAsyncFunction(); } expression { endFunction(); } ';'
| { startNonAsyncFunction(); } block { endFunction(); }
| ASYNC '=>'
{ startAsyncFunction(); } expression { endFunction(); } ';'
| (ASYNC | ASYNC '*' | SYNC '*')
{ startAsyncFunction(); } block { endFunction(); }
;
block
: LBRACE statements RBRACE
;
formalParameterPart
: typeParameters? formalParameterList
;
formalParameterList
: '(' ')'
| '(' normalFormalParameters ','? ')'
| '(' normalFormalParameters ',' optionalOrNamedFormalParameters ')'
| '(' optionalOrNamedFormalParameters ')'
;
normalFormalParameters
: normalFormalParameter (',' normalFormalParameter)*
;
optionalOrNamedFormalParameters
: optionalPositionalFormalParameters
| namedFormalParameters
;
optionalPositionalFormalParameters
: '[' defaultFormalParameter (',' defaultFormalParameter)* ','? ']'
;
namedFormalParameters
: LBRACE defaultNamedParameter (',' defaultNamedParameter)* ','? RBRACE
;
normalFormalParameter
: metadata normalFormalParameterNoMetadata
;
normalFormalParameterNoMetadata
: functionFormalParameter
| fieldFormalParameter
| simpleFormalParameter
| superFormalParameter
;
// NB: It is an anomaly that a functionFormalParameter cannot be FINAL.
functionFormalParameter
: COVARIANT? type? identifier formalParameterPart '?'?
;
simpleFormalParameter
: declaredIdentifier
| COVARIANT? identifier
;
// NB: It is an anomaly that VAR can be a return type (`var this.x()`).
fieldFormalParameter
: finalConstVarOrType? THIS '.' identifier (formalParameterPart '?'?)?
;
superFormalParameter
: type? SUPER '.' identifier (formalParameterPart '?'?)?
;
defaultFormalParameter
: normalFormalParameter ('=' expression)?
;
defaultNamedParameter
: metadata REQUIRED? normalFormalParameterNoMetadata ('=' expression)?
;
typeWithParameters
: typeIdentifier typeParameters?
;
classDeclaration
: AUGMENT? (classModifiers | mixinClassModifiers)
CLASS typeWithParameters superclass? interfaces?
LBRACE (metadata classMemberDeclaration)* RBRACE
| classModifiers MIXIN? CLASS mixinApplicationClass
;
classModifiers
: SEALED
| ABSTRACT? (BASE | INTERFACE | FINAL)?
;
mixinClassModifiers
: ABSTRACT? BASE? MIXIN
;
superclass
: EXTENDS typeNotVoidNotFunction mixins?
| mixins
;
mixins
: WITH typeNotVoidNotFunctionList
;
interfaces
: IMPLEMENTS typeNotVoidNotFunctionList
;
classMemberDeclaration
: AUGMENT? methodSignature functionBody
| AUGMENT? declaration ';'
;
mixinApplicationClass
: typeWithParameters '=' mixinApplication ';'
;
mixinDeclaration
: AUGMENT? BASE? MIXIN typeWithParameters
(ON typeNotVoidNotFunctionList)? interfaces?
LBRACE (metadata mixinMemberDeclaration)* RBRACE
;
// TODO: We might want to make this more strict.
mixinMemberDeclaration
: classMemberDeclaration
;
extensionTypeDeclaration
: EXTENSION TYPE CONST? typeWithParameters
representationDeclaration interfaces?
LBRACE (metadata extensionTypeMemberDeclaration)* RBRACE
| AUGMENT EXTENSION TYPE typeWithParameters interfaces?
LBRACE (metadata extensionTypeMemberDeclaration)* RBRACE
;
representationDeclaration
: ('.' identifierOrNew)? '(' metadata typedIdentifier ')'
;
// TODO: We might want to make this more strict.
extensionTypeMemberDeclaration
: classMemberDeclaration
;
extensionDeclaration
: EXTENSION typeIdentifierNotType? typeParameters? ON type extensionBody
| AUGMENT EXTENSION typeIdentifierNotType typeParameters? extensionBody
;
extensionBody
: LBRACE (metadata extensionMemberDeclaration)* RBRACE
;
// TODO: We might want to make this more strict.
extensionMemberDeclaration
: classMemberDeclaration
;
methodSignature
: constructorSignature initializers
| factoryConstructorSignature
| STATIC? functionSignature
| STATIC? getterSignature
| STATIC? setterSignature
| operatorSignature
| constructorSignature
;
declaration
: EXTERNAL? factoryConstructorSignature
| EXTERNAL constantConstructorSignature
| EXTERNAL constructorSignature
| EXTERNAL? STATIC? getterSignature
| EXTERNAL? STATIC? setterSignature
| EXTERNAL? STATIC? functionSignature
| EXTERNAL (STATIC? finalVarOrType | COVARIANT varOrType) identifierList
| EXTERNAL? operatorSignature
| ABSTRACT (finalVarOrType | COVARIANT varOrType) identifierList
| STATIC (FINAL | CONST) type? initializedIdentifierList
| STATIC LATE FINAL type? initializedIdentifierList
| STATIC LATE? varOrType initializedIdentifierList
| COVARIANT LATE FINAL type? identifierList
| COVARIANT LATE? varOrType initializedIdentifierList
| LATE? (FINAL type? | varOrType) initializedIdentifierList
| redirectingFactoryConstructorSignature
| constantConstructorSignature (redirection | initializers)?
| constructorSignature (redirection | initializers)?
;
operatorSignature
: type? OPERATOR operator formalParameterList
;
operator
: '~'
| binaryOperator
| '[' ']'
| '[' ']' '='
;
binaryOperator
: multiplicativeOperator
| additiveOperator
| shiftOperator
| relationalOperator
| '=='
| bitwiseOperator
;
getterSignature
: type? GET identifier
;
setterSignature
: type? SET identifier formalParameterList
;
constructorSignature
: constructorName formalParameterList
;
constructorName
: typeIdentifier ('.' identifierOrNew)?
;
// TODO: Add this in the language specification, use it in grammar rules.
identifierOrNew
: identifier
| NEW
;
redirection
: ':' THIS ('.' identifierOrNew)? arguments
;
initializers
: ':' initializerListEntry (',' initializerListEntry)*
;
initializerListEntry
: SUPER arguments
| SUPER '.' identifierOrNew arguments
| fieldInitializer
| assertion
;
fieldInitializer
: (THIS '.')? identifier '=' initializerExpression
;
initializerExpression
: throwExpression
| assignableExpression assignmentOperator expression
| conditionalExpression
| cascade
;
factoryConstructorSignature
: CONST? FACTORY constructorName formalParameterList
;
redirectingFactoryConstructorSignature
: CONST? FACTORY constructorName formalParameterList '='
constructorDesignation
;
constantConstructorSignature
: CONST constructorName formalParameterList
;
mixinApplication
: typeNotVoidNotFunction mixins interfaces?
;
enumType
: AUGMENT? ENUM typeWithParameters mixins? interfaces? LBRACE
enumEntry (',' enumEntry)* (',')?
(';' (metadata classMemberDeclaration)*)?
RBRACE
;
enumEntry
: metadata AUGMENT? identifier argumentPart?
| metadata AUGMENT? identifier typeArguments?
'.' identifierOrNew arguments
;
typeParameter
: metadata typeIdentifier (EXTENDS typeNotVoid)?
;
typeParameters
: '<' typeParameter (',' typeParameter)* '>'
;
metadata
: ('@' metadatum)*
;
metadatum
: constructorDesignation arguments
| identifier
| qualifiedName
;
expression
: patternAssignment
| functionExpression
| throwExpression
| assignableExpression assignmentOperator expression
| conditionalExpression
| cascade
;
expressionWithoutCascade
: functionExpressionWithoutCascade
| throwExpressionWithoutCascade
| assignableExpression assignmentOperator expressionWithoutCascade
| conditionalExpression
;
expressionList
: expression (',' expression)*
;
primary
: thisExpression
| SUPER unconditionalAssignableSelector
| SUPER argumentPart
| functionPrimary
| literal
| identifier
| newExpression
| constObjectExpression
| constructorInvocation
| '(' expression ')'
| constructorTearoff
| switchExpression
;
constructorInvocation
: typeName typeArguments '.' NEW arguments
| typeName '.' NEW arguments
;
literal
: nullLiteral
| booleanLiteral
| numericLiteral
| stringLiteral
| symbolLiteral
| setOrMapLiteral
| listLiteral
| recordLiteral
;
nullLiteral
: NULL
;
numericLiteral
: NUMBER
| HEX_NUMBER
;
booleanLiteral
: TRUE
| FALSE
;
stringLiteral
: (multiLineString | singleLineString)+
;
setOrMapLiteral
: CONST? typeArguments? LBRACE elements? RBRACE
;
listLiteral
: CONST? typeArguments? '[' elements? ']'
;
recordLiteral
: CONST? recordLiteralNoConst
;
recordLiteralNoConst
: '(' ')'
| '(' expression ',' ')'
| '(' label expression ','? ')'
| '(' recordField (',' recordField)+ ','? ')'
;
recordField
: label? expression
;
elements
: element (',' element)* ','?
;
element
: nullAwareExpressionElement
| nullAwareMapElement
| expressionElement
| mapElement
| spreadElement
| ifElement
| forElement
;
nullAwareExpressionElement
: '?' expression
;
nullAwareMapElement
: '?' expression ':' '?'? expression
| expression ':' '?' expression
;
expressionElement
: expression
;
mapElement
: expression ':' expression
;
spreadElement
: ('...' | '...?') expression
;
ifElement
: ifCondition element (ELSE element)?
;
forElement
: AWAIT? FOR '(' forLoopParts ')' element
;
constructorTearoff
: typeName typeArguments? '.' NEW
;
switchExpression
: SWITCH '(' expression ')'
LBRACE (switchExpressionCase (',' switchExpressionCase)* ','?)? RBRACE
;
switchExpressionCase
: guardedPattern '=>' expression
;
staticMemberShorthand
: staticMemberShorthandHead selector*
;
staticMemberShorthandHead
: '.' identifierOrNew
| CONST '.' identifierOrNew arguments
;
throwExpression
: THROW expression
;
throwExpressionWithoutCascade
: THROW expressionWithoutCascade
;
functionExpression
: formalParameterPart functionExpressionBody
;
functionExpressionBody
: '=>' { startNonAsyncFunction(); } expression { endFunction(); }
| ASYNC '=>' { startAsyncFunction(); } expression { endFunction(); }
;
functionExpressionWithoutCascade
: formalParameterPart functionExpressionWithoutCascadeBody
;
functionExpressionWithoutCascadeBody
: '=>' { startNonAsyncFunction(); }
expressionWithoutCascade { endFunction(); }
| ASYNC '=>' { startAsyncFunction(); }
expressionWithoutCascade { endFunction(); }
;
functionPrimary
: formalParameterPart functionPrimaryBody
;
functionPrimaryBody
: { startNonAsyncFunction(); } block { endFunction(); }
| (ASYNC | ASYNC '*' | SYNC '*')
{ startAsyncFunction(); } block { endFunction(); }
;
thisExpression
: THIS
;
newExpression
: NEW constructorDesignation arguments
;
constObjectExpression
: CONST constructorDesignation arguments
;
arguments
: '(' (argumentList ','?)? ')'
;
argumentList
: argument (',' argument)*
;
argument
: label? expression
;
cascade
: cascade '..' cascadeSection
| conditionalExpression ('?..' | '..') cascadeSection
;
cascadeSection
: cascadeSelector cascadeSectionTail
;
cascadeSelector
: '[' expression ']'
| identifier
;
cascadeSectionTail
: cascadeAssignment
| selector* (assignableSelector cascadeAssignment)?
;
cascadeAssignment
: assignmentOperator expressionWithoutCascade
;
assignmentOperator
: '='
| compoundAssignmentOperator
;
compoundAssignmentOperator
: '*='
| '/='
| '~/='
| '%='
| '+='
| '-='
| '<<='
| '>' '>' '>' '='
| '>' '>' '='
| '&='
| '^='
| '|='
| '??='
;
conditionalExpression
: ifNullExpression
('?' expressionWithoutCascade ':' expressionWithoutCascade)?
;
ifNullExpression
: logicalOrExpression ('??' logicalOrExpression)*
;
logicalOrExpression
: logicalAndExpression ('||' logicalAndExpression)*
;
logicalAndExpression
: equalityExpression ('&&' equalityExpression)*
;
equalityExpression
: relationalExpression (equalityOperator relationalExpression)?
| SUPER equalityOperator relationalExpression
;
equalityOperator
: '=='
| '!='
;
relationalExpression
: bitwiseOrExpression
(typeTest | typeCast | relationalOperator bitwiseOrExpression)?
| SUPER relationalOperator bitwiseOrExpression
;
relationalOperator
: '>' '='
| '>'
| '<='
| '<'
;
bitwiseOrExpression
: bitwiseXorExpression ('|' bitwiseXorExpression)*
| SUPER ('|' bitwiseXorExpression)+
;
bitwiseXorExpression
: bitwiseAndExpression ('^' bitwiseAndExpression)*
| SUPER ('^' bitwiseAndExpression)+
;
bitwiseAndExpression
: shiftExpression ('&' shiftExpression)*
| SUPER ('&' shiftExpression)+
;
bitwiseOperator
: '&'
| '^'
| '|'
;
shiftExpression
: additiveExpression (shiftOperator additiveExpression)*
| SUPER (shiftOperator additiveExpression)+
;
shiftOperator
: '<<'
| '>' '>' '>'
| '>' '>'
;
additiveExpression
: multiplicativeExpression (additiveOperator multiplicativeExpression)*
| SUPER (additiveOperator multiplicativeExpression)+
;
additiveOperator
: '+'
| '-'
;
multiplicativeExpression
: unaryExpression (multiplicativeOperator unaryExpression)*
| SUPER (multiplicativeOperator unaryExpression)+