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attributeCopyExamples.C
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attributeCopyExamples.C
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#include <rose.h>
using namespace std;
// This is an example of inherited attributes. Here we prevent the traversal going any
// deeper than 20 levels.
class InheritedAttributeExample : public SgCopyHelp
{
static const int maxLevel = 20;
int level;
InheritedAttributeExample(int level) : level(level)
{
}
public:
InheritedAttributeExample() : level(0)
{
}
SgNode *copyAst(const SgNode *n)
{
if (level < maxLevel)
{
InheritedAttributeExample subCopy(level+1);
return n->copy(subCopy);
}
else
{
return const_cast<SgNode *>(n);
}
}
};
// This is an example of synthesized attributes. Here we keep a list of all the global
// veriable declarations that are created during the copy.
class SynthesizedAttributeExample : public SgCopyHelp
{
list<SgVariableDeclaration *> varDecls;
public:
SgNode *copyAst(const SgNode *n)
{
SynthesizedAttributeExample subCopy;
SgNode *newN = n->copy(subCopy);
if (!isSgFunctionDefinition(newN) && !isSgClassDefinition(newN))
{
varDecls.insert(varDecls.end(), subCopy.varDecls.begin(), subCopy.varDecls.end());
}
if (SgVariableDeclaration *newVarDecl = isSgVariableDeclaration(newN))
{
varDecls.push_back(newVarDecl);
}
return newN;
}
};
// This is an example of accumulator attributes. Here we count the number of if statements
// found during the copy.
class AccumulatorAttributeExample : public SgCopyHelp
{
int ifCount;
public:
AccumulatorAttributeExample() : ifCount(0)
{
}
SgNode *copyAst(const SgNode *n)
{
if (isSgIfStmt(n))
{
ifCount++;
}
return n->copy(*this);
}
};