[cfe-dev] CXXBaseSpecifiers not returning same Type

[Reid Kleckner]

You can specifically check for ElaboratedType and call desugar or
getNamedType on it to get the type without the qualifier and compare those.


On Tue, Jul 1, 2014 at 11:23 AM, Daniel Dilts <diltsman at gmail.com> wrote:

> If I use either of those methods, it will also match typedefs, right?  How
> would I modify that so that it doesn't match typedefs, but will match
> different nested name specifiers?
>
>
> On Tue, Jul 1, 2014 at 11:19 AM, Reid Kleckner <rnk at google.com> wrote:
>
>> Clang has both sugared and concrete types.  By default, getting the type
>> of some AST node will give you information about the type as written.  In
>> this case, two different nested name specifiers were used, so there are two
>> different types.
>>
>> If you want to compare types for equivalence, use the canonical types, or
>> simply use ASTContext::hasSameType(QualType, QualType).
>>
>>
>> On Tue, Jul 1, 2014 at 11:02 AM, Daniel Dilts <diltsman at gmail.com> wrote:
>>
>>> In the code below I would expect the CXXRecordDecls for BaseClass1 to
>>> have the same Type as both base class specifiers.
>>>
>>> When I use getTypeForDecl() on the CXXRecordDecls I get the same Type*.
>>> When I use getType().getTypePtr() on the two CXXBaseSpecifiers I get
>>> different a Type* for each one, neither of which is the same as the
>>> CXXRecordDecl's Type*.
>>>
>>> Namespace N {
>>>   class BaseClass1;
>>> }
>>> class N::BaseClass1 {
>>> };
>>> class DerivedClass1 : public N::BaseClass1 {
>>> };
>>> class DerivedClass2 : public ::N::BaseClass1 {
>>> };
>>>
>>> This seems to indicate to me that the declared/defined class is of a
>>> different type from the base specifiers, and the base specifiers differ in
>>> type from each other.
>>>
>>> What am I doing wrong with this?  I really just want to see if the
>>> CXXBaseSpecifier matches the CXXRecordDecl.
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at cs.uiuc.edu
>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>>>
>>>
>>
>
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