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<p>Jordan, thank you for your response, now it's much clearer. </p>
<p>Alp, I've been trying for a while to recall for those terms that I got mixed up when I had to use them, but I'm not able to contribute with something relevant right now. If I remember something, I'll write you again.</p>
<p>Thanks,</p>
<p>Pedro.</p>
<div><em>El día 25 ene 2014 02:48, Alp Toker <alp@nuanti.com> escribió:</em></div><blockquote class="replyBlock" style="border-left: 2px solid #000083; margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><p>On 25/01/2014 01:24, Richard Smith wrote:</p>
<blockquote class="replyBlock" style="border-left: 2px solid #000083; margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><p>On Fri Jan 24 2014 at 9:20:44 AM, Jordan Rose <jordan_rose@apple.com <<a href="mailto:jordan_rose@apple.com>> wrote:" target="_blank">mailto:jordan_rose@apple.com>> wrote:</a></p>
<br/>
<p> On Jan 24, 2014, at 2:51 , Pedro Delgado Perez<br/>
<pedro.delgadoperez@mail.uca.es<br/>
<<a href="mailto:pedro.delgadoperez@mail.uca.es>> wrote:" target="_blank">mailto:pedro.delgadoperez@mail.uca.es>> wrote:</a></p>
<blockquote class="replyBlock" style="border-left: 2px solid #000083; margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><p> Hi,</p>
<p> My question is simple. Could anyone explain me what's the<br/>
difference between the methods<br/>
getResultType and getCallResultType in FunctionDecl?</p>
<p> This is the implementation in FunctionType:</p>
<p> 02783 <http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html#aafa453cd7e81a7c3d6c61f261e68afe8> QualType <http://clang.llvm.org/doxygen/classclang_1_1QualType.html> getResultType <http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html#aafa453cd7e81a7c3d6c61f261e68afe8>() const{return ResultType; }</p>
<p> ...<br/>
02799 <http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html#a5f8df0258bcf7281e7055ea01dbd8f85> QualType <<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html> getCallResultType <http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html#a5f8df0258bcf7281e7055ea01dbd8f85>(ASTContext <" target="_blank">http://clang.llvm.org/doxygen/classclang_1_1QualType.html> getCallResultType <http://clang.llvm.org/doxygen/classclang_1_1FunctionType.html#a5f8df0258bcf7281e7055ea01dbd8f85>(ASTContext <</a><a href="http://clang.llvm.org/doxygen/classclang_1_1ASTContext.html> &Context <http://clang.llvm.org/doxygen/ASTMatchFinder_8cpp.html#a779280869b9fac47a9bc391e7709171f>" target="_blank">http://clang.llvm.org/doxygen/classclang_1_1ASTContext.html> &Context <http://clang.llvm.org/doxygen/ASTMatchFinder_8cpp.html#a779280869b9fac47a9bc391e7709171f></a>) const{2800return getResultType().getNonLValueExprType <<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html#a89e3ea65c009b7a0ea76edc56076107c>(Context" target="_blank">http://clang.llvm.org/doxygen/classclang_1_1QualType.html#a89e3ea65c009b7a0ea76edc56076107c>(Context</a>);2801 }</p>
<p> And this is the definition ofgetNonLValueExprType<br/>
<<a href="http://clang.llvm.org/doxygen/classclang_1_1QualType.html#a89e3ea65c009b7a0ea76edc56076107c>:" target="_blank">http://clang.llvm.org/doxygen/classclang_1_1QualType.html#a89e3ea65c009b7a0ea76edc56076107c>:</a><br/>
Determine the type of a (typically non-lvalue) expression with<br/>
the specified result type.<br/>
This routine should be used for expressions for which the return<br/>
type is explicitly specified (e.g., in a cast or call) and isn't<br/>
necessarily an lvalue. It removes a top-level reference (since<br/>
there are no expressions of reference type) and deletes top-level<br/>
cvr-qualifiers from non-class types (in C++) or all types (in C).</p>
<p> But I am not able to understand this very well. Could anyone give<br/>
me an example of the difference? Up to now, I have been using<br/>
getResultType, but now I have found getCallResultType and I'm not<br/>
sure what should I use.</p>
</blockquote><p> I'm not 100% sure about this, but my understanding is:</p>
<p> You can declare your function to return "const int", but the<br/>
caller is just going to get an int. Similarly, if you declare your<br/>
function to return "int &", the calling expression has type "int"<br/>
but is marked as an lvalue.</p>
<p> On the other hand, if you return "const int *", dropping the const<br/>
would be incorrect. (And the same is actually true for "const int &".)</p>
<p> Basically, if you want to know the type the function says it's<br/>
returning, use getResultType(). If you want to know the type that<br/>
the CallExpr will have, use getCallResultType().</p>
<br/>
<p>We should rename 'getResultType' to 'getReturnType' to clarify this (and to generally follow the standard terminology). This has been on my TODO list for a long time, but there's always been something more pressing to do...</p>
</blockquote><p>I'll take a look into this shortly, it's very much in line with the other terminology fixes we've been working on lately. Will deprecate and keep the old version around for external modules.</p>
<p>Richard, do you see any other terminology fixes we could get done while I have the refactoring setup primed?</p>
<p>Alp.</p>
<br/>
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