From: Richard Smith <richard-llvm@metafoo.co.uk>
Date: Thu, 20 Nov 2014 22:56:34 +0000 (+0000)
Subject: Fix crash-on-valid if a lambda-expression appears lexically directly within a
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=620d1a5260364c2a5c8140615dd03efeb374d6a9;p=clang

Fix crash-on-valid if a lambda-expression appears lexically directly within a
local class inside a template.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@222476 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Sema/SemaTemplateInstantiate.cpp b/lib/Sema/SemaTemplateInstantiate.cpp
index 891cf734c3..c05960b571 100644
--- a/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/lib/Sema/SemaTemplateInstantiate.cpp
@@ -2555,7 +2555,10 @@ Sema::InstantiateClassMembers(SourceLocation PointOfInstantiation,
       // Always skip the injected-class-name, along with any
       // redeclarations of nested classes, since both would cause us
       // to try to instantiate the members of a class twice.
-      if (Record->isInjectedClassName() || Record->getPreviousDecl())
+      // Skip closure types; they'll get instantiated when we instantiate
+      // the corresponding lambda-expression.
+      if (Record->isInjectedClassName() || Record->getPreviousDecl() ||
+          Record->isLambda())
         continue;
       
       MemberSpecializationInfo *MSInfo = Record->getMemberSpecializationInfo();
diff --git a/test/SemaCXX/cxx1y-generic-lambdas.cpp b/test/SemaCXX/cxx1y-generic-lambdas.cpp
index 8e07b806b1..f3aae219a4 100644
--- a/test/SemaCXX/cxx1y-generic-lambdas.cpp
+++ b/test/SemaCXX/cxx1y-generic-lambdas.cpp
@@ -918,3 +918,10 @@ int run2 = x2.fooG3();
 
 
 } //end ns inclass_lambdas_within_nested_classes
+
+namespace lambda_in_default_mem_init {
+  template<typename T> void f() {
+    struct S { int n = []{ return 0; }(); };
+  }
+  template void f<int>();
+}