[cfe-dev] Extracting variable name from VarDecl* Clang

[Miklos Vajna via cfe-dev]

On Sat, Jun 04, 2016 at 05:32:37PM +0530, Dhriti Khanna via cfe-dev <cfe-dev at lists.llvm.org> wrote:
> This code:
> 
>  if (IfStmt* ifS = dyn_cast<IfStmt>(st)) {
>    errs() << "Found an IF statement ";
>    VarDecl* var = ifS->getConditionVariable();
>    errs() << var->getNameAsString();
>  }
> 
> produces cannot initialize object parameter of type 'const
> clang::NamedDecl' with an expression of type 'clang::VarDecl' error on errs()
> << var->getNameAsString(); line and the program crashes with a seg fault. I
> can't find what's wrong with this? Please help.

Please post some sample source code (from which the AST is generated),
without that it's quite hard to help. But in general I guess you can't
assume that you can get a single variable out of an if statement, if you
have "if (Foo && Bar)", which one would be returned by the API?
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