3 files changed, 84 insertions, 5 deletions
diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c
index 15c1eacb961..c54c618df11 100644
--- a/clang/test/Driver/clang_f_opts.c
+++ b/clang/test/Driver/clang_f_opts.c
@@ -494,3 +494,8 @@
 // RUN: %clang -### -S -fdebug-info-for-profiling -fno-debug-info-for-profiling %s 2>&1 | FileCheck -check-prefix=CHECK-NO-PROFILE-DEBUG %s
 // CHECK-PROFILE-DEBUG: -fdebug-info-for-profiling
 // CHECK-NO-PROFILE-DEBUG-NOT: -fdebug-info-for-profiling
+
+// RUN: %clang -### -S -fallow-editor-placeholders %s 2>&1 | FileCheck -check-prefix=CHECK-ALLOW-PLACEHOLDERS %s
+// RUN: %clang -### -S -fno-allow-editor-placeholders %s 2>&1 | FileCheck -check-prefix=CHECK-NO-ALLOW-PLACEHOLDERS %s
+// CHECK-ALLOW-PLACEHOLDERS: -fallow-editor-placeholders
+// CHECK-NO-ALLOW-PLACEHOLDERS-NOT: -fallow-editor-placeholders
diff --git a/clang/test/Parser/editor-placeholder-recovery.cpp b/clang/test/Parser/editor-placeholder-recovery.cpp
new file mode 100644
index 00000000000..48c290ee9a1
--- /dev/null
+++ b/clang/test/Parser/editor-placeholder-recovery.cpp
@@ -0,0 +1,71 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -fallow-editor-placeholders -DSUPPRESS -verify %s
+
+struct Struct {
+public:
+    void method(Struct &x);
+};
+
+struct <#struct name#> {
+  int <#field-name#>;
+#ifndef SUPPRESS
+  // expected-error@-3 {{editor placeholder in source file}}
+  // expected-error@-3 {{editor placeholder in source file}}
+#endif
+};
+
+typename <#typename#>::<#name#>;
+decltype(<#expression#>) foobar;
+typedef <#type#> <#name#>;
+#ifndef SUPPRESS
+  // expected-error@-4 2 {{editor placeholder in source file}}
+  // expected-error@-4 {{editor placeholder in source file}}
+  // expected-error@-4 2 {{editor placeholder in source file}}
+#endif
+
+namespace <#identifier#> {
+  <#declarations#>
+#ifndef SUPPRESS
+  // expected-error@-3 {{editor placeholder in source file}}
+  // expected-error@-3 {{editor placeholder in source file}}
+#endif
+
+}
+
+using <#qualifier#>::<#name#>;
+#ifndef SUPPRESS
+  // expected-error@-2 2 {{editor placeholder in source file}}
+#endif
+
+void avoidPlaceholderErrors(Struct &obj) {
+    static_cast< <#type#> >(<#expression#>);
+    while (<#condition#>) {
+        <#statements#>
+    }
+    obj.method(<#Struct &x#>);
+#ifndef SUPPRESS
+  // expected-error@-6 2 {{editor placeholder in source file}}
+  // expected-error@-6 {{editor placeholder in source file}}
+  // expected-error@-6 {{editor placeholder in source file}}
+  // expected-error@-5 {{editor placeholder in source file}}
+#endif
+    switch (<#expression#>) {
+        case <#constant#>:
+            <#statements#>
+#ifndef SUPPRESS
+  // expected-error@-4 {{editor placeholder in source file}}
+  // expected-error@-4 {{editor placeholder in source file}}
+  // expected-error@-4 {{editor placeholder in source file}}
+#endif
+            break;
+
+        default:
+            break;
+    }
+}
+
+void Struct::method(<#Struct &x#>, noSupressionHere) { // expected-error {{unknown type name 'noSupressionHere'}} expected-error {{C++ requires a type specifier for all declarations}}
+#ifndef SUPPRESS
+  // expected-error@-2 {{editor placeholder in source file}}
+#endif
+}
diff --git a/clang/test/Parser/placeholder-recovery.m b/clang/test/Parser/placeholder-recovery.m
index b43b0e4a57c..4f22ea770da 100644
--- a/clang/test/Parser/placeholder-recovery.m
+++ b/clang/test/Parser/placeholder-recovery.m
@@ -1,11 +1,14 @@
 // RUN: %clang_cc1 -fsyntax-only -verify %s
 
+@protocol NSObject
+@end
+
+@protocol <#protocol name#> <NSObject> // expected-error {{editor placeholder in source file}}
+// expected-note@-1 {{protocol started here}}
+
 // FIXME: We could do much better with this, if we recognized
 // placeholders somehow. However, we're content with not generating
 // bogus 'archaic' warnings with bad location info.
-@protocol <#protocol name#> <NSObject> // expected-error {{expected identifier or '('}} \
-// expected-error 2{{expected identifier}} \
-// expected-warning{{protocol has no object type specified; defaults to qualified 'id'}}
-<#methods#>
+<#methods#> // expected-error {{editor placeholder in source file}}
 
-@end
+@end // expected-error {{prefix attribute must be followed by an interface or protocol}} expected-error {{missing '@end'}}