Replace the broken LambdaCapture::isInitCapture API.

A LambdaCapture does not have sufficient information
to correctly determine whether it is an init-capture or not.
Doing so requires knowledge held in the LambdaExpr itself.

It the case of a nested capture of an init-capture it is not
sufficient to check (as LambdaCapture::isInitCapture did)
whether the associated VarDecl was from an init-capture.

This patch moves isInitCapture to LambdaExpr and updates
Capture->isInitCapture() to Lambda->isInitCapture(Capture).

llvm-svn: 236760

1 files changed, 24 insertions, 1 deletions

diff --git a/clang/test/SemaCXX/cxx1y-init-captures.cpp b/clang/test/SemaCXX/cxx1y-init-captures.cpp
index 64fe50a70e7..203e28d7c3f 100644
--- a/clang/test/SemaCXX/cxx1y-init-captures.cpp
+++ b/clang/test/SemaCXX/cxx1y-init-captures.cpp
@@ -166,4 +166,27 @@ int test(T t = T{}) {
 
 int run = test(); //expected-note {{instantiation}}
 
-}
\ No newline at end of file
+}
+
+namespace classification_of_captures_of_init_captures {
+
+template <typename T>
+void f() {
+  [a = 24] () mutable {
+    [&a] { a = 3; }();
+  }();
+}
+
+template <typename T>
+void h() {
+  [a = 24] (auto param) mutable {
+    [&a] { a = 3; }();
+  }(42);
+}
+
+int run() {
+  f<int>();
+  h<int>();
+}
+
+}