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Expressions
expression : expressionNoClosure | applyCall
expressionNoClosure : literal | stringInterpolation | voidValue
| thisExpression | superExpression | initExpression | constructor
| statement
| methodCall | fieldAccess | applyCallNoClosure | subscriptCall
| castExpression | instanceOfExpression
| classExpression | typeExpression
| arrayExpression | tupleExpression
| lambdaExpression | matchExpression
| braceAccessExpression | colonExpression | assignment
literal : number | stringLiteral | charLiteral | boolean | null | nil
voidValue : '(' ')'
stringInterpolation : stringStart expression { stringPart expression }? stringEnd
arrayExpression : '[' ']' | '[' expression { comma expression }? ']'
tupleExpression : '(' expression { comma expression }? ')'
colonExpression : expression ':' expression
constructor : 'new' type arguments? classBody?
access : (expression '.'?)? ( fieldAccess | methodCall )
access : expression '.'
fieldAccess : (expression '.')? identifier
methodCall : (expression '.')? identifier typeArguments? ( arguments | expression )
applyCall : expression arguments | expression { expression }
applyCallNoClosure : expression arguments | expression { expressionNoClosure }
subscriptCall : expression subscriptArguments
arguments : '(' ')' | '(' argumentList ')'
subscriptArguments : '[' ']' | '[' argumentList ']'
argumentList : label? expression { comma label? expression }
typeArguments : '[' type { comma type }? ']'
assignment : expression '=' expression
thisExpression : 'this' classSpecifier?
superExpression : 'super' classSpecifier?
classSpecifier : '<' type '>'
initExpression : ( 'this' '.' | 'super' '.' ) 'init' arguments
classExpression : 'class' type
| 'class' '(' type ')'
| 'class' '<' type '>'
typeExpression : 'type' type
| 'type' '(' type ')'
| 'type' '<' type '>'
castExpression : expression 'as' type
instanceOfExpression : expression 'is' type
lambdaExpression : lambdaParameters? ('->' type)? '=>' expression
lambdaParameters : parameters | identifier
braceAccessExpression : expression '.' statementList
pattern : orPattern { '&' orPattern }
orPattern : primaryPattern { '|' primaryPattern }
primaryPattern : literal | '-' number | '_' | bindingPattern
| tuplePattern | classPattern | typeCheckPattern
bindingPattern : 'var' identifier | type identifier
typeCheckPattern : pattern 'as' type
tuplePattern : '(' pattern { comma pattern }? ')'
classPattern : type classPatternArguments?
classPatternArguments : '(' ')' | '(' pattern { comma pattern }? ')'
Last modified 5yr ago