[cdt-dev] How to instantiate a CPPVariable?

[Suter Toni <toni.suter@xxxxxx>]

Hi everyone,

I’m trying to instantiate a CPPVariable or better yet an IVariable in general. Let’s say,

I have a declaration T val{}; in a function template where T is a template parameter.

Later I use val in some way, e.g. val++; Here, val’s binding is a CPPVariable with a type 

that is a CPPTemplateTypeParameter. What I want is to instantiate the CPPVariable or in other

words create a new CPPVariable where the type is replaced with the template argument

that is provided for the template parameter T. How should I do that? Right now my solution

looks like this, but I wondered whether there is a better way of doing it:

IType newType = CPPTemplates.instantiateType(variable.getType(), tpMap, packOffset, within, point);

CPPVariable newVariable;

if(newType != variable.getType()) {

newVariable = new CPPVariable((IASTName)variable.getDefinition(), newType);

if(variable.getDeclarations() != null) {

for(IASTNode declaration : variable.getDeclarations()) {

newVariable.addDeclaration(declaration);

}

}

}

I also tried to use CPPTemplates.instantiateBinding(), but this function does nothing if the binding is

a CPPVariable.

Thank you and best regards,

Toni