[cfe-dev] RecursiveAstVisitor: How to get the LHS and its type of an assigment inside a VistCallExpr?

[David Come via cfe-dev]

Hi;


There is no such thing as 'lhs' for VisitCallExpr. Visiting a 
VisitCallExpr will give you access to foo(42).

You need to visit BinaryOperator to get your hand on a LHS.


David


On 22/08/2017 11:26, Marcel Schaible via cfe-dev wrote:
>
> Hi,
>
> in my source-to-source translation tool I try to get the lefthandside 
> of assignment in my VisitCallExpr:
>
> Example:
>
> lhs = foo(42);
>
> I need to retrieve "lhs" and its associated type.
>
> Any hint is welcome!
>
> Marcel
>
> My code snippet:
>
>     bool VisitCallExpr(CallExpr *CallExpression) {
>         QualType q = CallExpression->getType();
>         const Type *t = q.getTypePtrOrNull();
>         const Stmt* callExpression = CallExpression;
>
> FunctionDecl *func = CallExpression->getDirectCallee();
>
>         ...
>
>         // How to retrieve "LHS" here and its type?
>
>         ...
>
>         return true;
>     }
>
>
>
>
>
>
>
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> cfe-dev at lists.llvm.org
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