[cfe-dev] Matcher with expressions

[Manuel Klimek]

Something like (untested):
constructExpr(hasDeclaration(methodDecl(ofClass(recordDecl().bind("constructedType")))),
hasAncestor(methodDecl(ofClass(recordDecl(isDerivedFrom(equalsBoundNode("constructedType"))))))).bind("constructExpr")

Cheers,
/Manuel



On Thu, Sep 26, 2013 at 11:40 AM, Pedro Delgado Perez
<pedro.delgado at uca.es>wrote:

>  I'm not sure what the question is. You do not want definitions of what?
>
> What I need is to find every call to a parent class constructor. Regarding
> the example I put, I want to match the invokation "A()" and I'm pretty lost
> in this case...
>
> Use hasType to match on the type of an expression.
>
> Ok, that's good. But, I don't know how could I express that the type is a
> constructorDecl from a parent class...
>
> Thanks,
>
> Pedro.
>
> *El día 26 sep 2013 11:19, Manuel Klimek <klimek at google.com> escribió:*
>
> On Thu, Sep 26, 2013 at 9:26 AM, Pedro Delgado Perez <
> pedro.delgadoperez at mail.uca.es> wrote:
>
>> Hello,
>>
>> Sorry to write you directly, but I have been sending this message since
>> two days ago to cfe-dev but my message is not posted and I need help as
>> soon as possible.
>>
>> This is the message:
>>
>> "Up to now, I have been using matchers to match declarations, but now, I
>> need to match an expression and I am having some problems.
>> I am looking for a CXXConstructExpr like the one marked in bold in the
>> next example:
>> class A{
>>    A() {...}
>>    ...
>> };
>> class B: public A{
>>      B () {* A (); *}
>> }
>> I think the matcher should follow this structure:
>> StatementMatcher CE = constructExpr(...);
>>
>> Then:
>>
>> 1. If I put nothing within the parentheses, "A()" in class A, "B()" and
>> "A()" in class B are all retrieved. Therefore, I need to indicate that I do
>> not want the definitions. Thus, I thought about the matcher "isDefinition",
>> but it is only for the type "Decl", how can I solve this problem?
>> The only thing that I have found is the matcher "hasDeclaration", but I
>> do not know how this matcher could help me in this task.
>>
> I'm not sure what the question is. You do not want definitions of what?
>
>> 2. I also need to ensure that the constructor invoked belongs to a parent
>> class. In the same way, when matching declarations I can ask if the
>> CXXConstructDecl "B()" is "ofClass(recordDecl(isDerivedFrom(...)))". But,
>> with an expression...
>>
> Use hasType to match on the type of an expression.
> Cheers,
> /Manuel
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-dev/attachments/20130927/82dd0b0f/attachment.html>