@mike-lischke/antlr-tgen/resources/descriptors/LeftRecursion/JavaExpressions_12.txt

A generator for antlr-ng runtime test cases

[type]
Parser

[grammar]
grammar T;
s @after {<ToStringTree("$ctx"):writeln()>} : e EOF ; // must indicate EOF can follow
expressionList
    :   e (',' e)*
    ;
e   :   '(' e ')'
    |   'this'
    |   'super'
    |   INT
    |   ID
    |   typespec '.' 'class'
    |   e '.' ID
    |   e '.' 'this'
    |   e '.' 'super' '(' expressionList? ')'
    |   e '.' 'new' ID '(' expressionList? ')'
    |   'new' typespec ( '(' expressionList? ')' | ('[' e ']')+)
    |   e '[' e ']'
    |   '(' typespec ')' e
    |   e ('++' | '--')
    |   e '(' expressionList? ')'
    |   ('+'|'-'|'++'|'--') e
    |   ('~'|'!') e
    |   e ('*'|'/'|'%') e
    |   e ('+'|'-') e
    |   e ('\<\<' | '>>>' | '>>') e
    |   e ('\<=' | '>=' | '>' | '\<') e
    |   e 'instanceof' e
    |   e ('==' | '!=') e
    |   e '&' e
    |\<assoc=right> e '^' e
    |   e '|' e
    |   e '&&' e
    |   e '||' e
    |   e '?' e ':' e
    |\<assoc=right>
        e ('='
 |'+='
 |'-='
 |'*='
 |'/='
 |'&='
 |'|='
 |'^='
 |'>>='
 |'>>>='
 |'\<\<='
 |'%=') e
    ;
typespec
    : ID
    | ID '[' ']'
    | 'int'
    | 'int' '[' ']'
    ;
ID  : ('a'..'z'|'A'..'Z'|'_'|'$')+;
INT : '0'..'9'+ ;
WS  : (' '|'\n') -> skip ;

[start]
s

[input]
new T[((n-1) * x) + 1]

[output]
"""(s (e new (typespec T) [ (e (e ( (e (e ( (e (e n) - (e 1)) )) * (e x)) )) + (e 1)) ]) <EOF>)
"""