Fix UseAuto replacing variable declaration lists containing non-initialized

variables.

UseAuto used to match initialized variable declarations independently of
whether they were defined in a declaration list or as a single declaration.
Now it matches declaration statements where every variable declaration is
initialized.

llvm-svn: 182114

1 files changed, 12 insertions, 0 deletions

diff --git a/clang-tools-extra/test/cpp11-migrate/UseAuto/iterator.cpp b/clang-tools-extra/test/cpp11-migrate/UseAuto/iterator.cpp
index 59c2979b32e..7c4b5aa4678 100644
--- a/clang-tools-extra/test/cpp11-migrate/UseAuto/iterator.cpp
+++ b/clang-tools-extra/test/cpp11-migrate/UseAuto/iterator.cpp
@@ -156,5 +156,17 @@ int main(int argc, char **argv) {
     // CHECK: auto I = MapFind.find("foo");
   }
 
+  // Test for declaration lists
+  {
+    // Ensusre declaration lists that matches the declaration type with written
+    // no-list initializer are transformed.
+    std::vector<int>::iterator I = Vec.begin(), E = Vec.end();
+    // CHECK: auto I = Vec.begin(), E = Vec.end();
+
+    // Declaration lists with non-initialized variables should not be
+    // transformed.
+    std::vector<int>::iterator J = Vec.begin(), K;
+    // CHECK: std::vector<int>::iterator J = Vec.begin(), K;
+  }
   return 0;
 }