[Templight] Template Instantiation Observer
This patch adds a base-class called TemplateInstantiationObserver which gets
notified whenever a template instantiation is entered or exited during
semantic analysis. This is a base class used to implement the template
profiling and debugging tool called
Templight (https://github.com/mikael-s-persson/templight).
The patch also makes a few more changes:
* ActiveTemplateInstantiation class is moved out of the Sema class (so it can be used with inclusion of Sema.h).
* CreateFrontendAction function in front-end utilities is given external linkage (not longer a hidden static function).
* TemplateInstObserverChain data member added to Sema class to hold the list of template-inst observers.
* Notifications to the template-inst observer are added at the key places where templates are instantiated.
Patch by: Abel Sinkovics!
Differential Revision: https://reviews.llvm.org/D5767
llvm-svn: 324808
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index b8b7440..15b53ca 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -23,6 +23,7 @@
#include "clang/Sema/Lookup.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
#include "clang/Sema/Template.h"
+#include "clang/Sema/TemplateInstCallback.h"
using namespace clang;
@@ -3648,8 +3649,10 @@
assert(FunTmpl->getTemplatedDecl() == Tmpl &&
"Deduction from the wrong function template?");
(void) FunTmpl;
+ atTemplateEnd(SemaRef.TemplateInstCallbacks, SemaRef, ActiveInst);
ActiveInst.Kind = ActiveInstType::TemplateInstantiation;
ActiveInst.Entity = New;
+ atTemplateBegin(SemaRef.TemplateInstCallbacks, SemaRef, ActiveInst);
}
}