nl_tokens: 12 . 9 The return statement
pl_tokens: function parseReturnStatement ( ) { var argument = null , marker = markerCreate ( ) ; expectKeyword ( 'return' ) ; if ( ! state . inFunctionBody ) { throwErrorTolerant ( { } , Messages . IllegalReturn ) ; } // 'return' followed by a space and an identifier is very common. if ( <mask> . charCodeAt ( index ) === 32 ) { if ( isIdentifierStart ( source . charCodeAt ( index + 1 ) ) ) { argument = parseExpression ( ) ; consumeSemicolon ( ) ; return markerApply ( marker , delegate . createReturnStatement ( argument ) ) ; } } if ( peekLineTerminator ( ) ) { return markerApply ( marker , delegate . createReturnStatement ( null ) ) ; } if ( ! match ( ';' ) ) { if ( ! match ( '}' ) && lookahead . type !== Token . EOF ) { argument = parseExpression ( ) ; } } consumeSemicolon ( ) ; return markerApply ( marker , delegate . createReturnStatement ( argument ) ) ; }