Prevent folding of integer constant expressions in AST

Hi,

I am using ParseAST to traverse the AST provided by clang, using a ConstDeclVisitor, a ConstStmtVisitor and a TypeVisitor.
My problem now is that for expressions such as

char main_foo[sizeof(int) == sizeof(char) ? 5 : 8];

I cannot access the expression for the array size, from VisitConstantArrayType(). I can only access the folded numerical value, in this case 8.
Is there a way to access the unfolded expression? Or disable folding of integer constant expressions all together?
I am using clang 6.0.

Thank you and best regards,
Benedikt

Hi,

I wanted to bump this question. Maybe someone has an idea how to solve this.

Thank you and best regards,
Benedikt

I have already sent the following on the list, may this helps.
Assume that you have the desired VarDecl D of main_foo:

const Expr *SizeExpr = nullptr;
if (const TypeSourceInfo *TSI = D->getTypeSourceInfo())
if (const auto ATL = TSI->getTypeLoc().getAs<ArrayTypeLoc>())
SizeExpr = ATL.getSizeExpr();

Thank you, that seems to be what I need.

Best regards,
Benedikt