Skip the call to postVisit and do not visit any of the
sub-expressions.
Skip the call to postVisit and do not visit any of the
sub-expressions. Instead, directly return res as result
Specify the arguments to use for the individual sub-expressions
Specify the arguments to use for the individual sub-expressions
Call preVisit again with a different expression and argument
Call preVisit again with a different expression and argument
Use arg for each of the direct sub-expressions
Use arg for each of the direct sub-expressions
Use the same argument for the direct sub-expressions as for this expression
Use the same argument for the direct sub-expressions as for this expression
Traverse the given expression, and invoke f(n) whenever
a variable with index n is encountered.
Traverse the given expression, and invoke f(n) whenever
a variable with index n is encountered.
(Since version ) see corresponding Javadoc for more information.
Class for collecting the indexes of free variables occurring in an expression.