muFieldAssignment :: JSExpression -> String -> JSAssignOp -> Expression -> Expression
muFieldAssignment e name op value = FieldAssignment (muJSExpression e) name (muJSAssignOp op name value)
muFieldAssignment :: JSExpression -> String -> JSAssignOp -> Expression -> Expression
muFieldAssignment e name op value = FieldAssignment (muJSExpression e) name (muJSAssignOp op name value)
muFieldAssignment e name op value = FieldAssignment (muJSExpression e) name (muJSAssignOp op name value)