[cdt-dev] Printing Code using ASTVisitor

[Joseph Paul Cohen <jcccnet@xxxxxxxxx>]

Can anyone shed some light on how to print out a piece of C++ code
using an ASTVisitor? Eventually I want to be able to walk the AST and
print out or transform what I want.  I made this ASTVisitor but it
seems I have to override each visit method and even then I get
overlapping code. It will print out an entire function definition and
then later I will visit the expressions inside it and print those out.
Any suggestions?

Output:
...
CPPASTFunctionDefinition int called2(){

     called3();
     return 9;
}
CPPASTFunctionCallExpression called3()
CPPASTIdExpression called3
CPPASTLiteralExpression 9
...


Code:

class CodePrintVisitor extends ASTVisitor {
     CodePrintVisitor() {
             shouldVisitExpressions= true;
             shouldVisitDeclarations = true;
     }

     @Override
     public int visit(IASTExpression expression) {

             String line = "";

             line += expression.getClass().getSimpleName();
             line += " ";
             line += expression.getRawSignature();

             print("Code", line);
             return PROCESS_CONTINUE;
     }

     @Override
     public int visit(IASTDeclaration declaration) {
             String line = "";

             line += declaration.getClass().getSimpleName();
             line += " ";
             line += declaration.getRawSignature();

             print("Code", line);
             return PROCESS_CONTINUE;
     }
}