[analyzer] Add experimental option "leak-diagnostics-reference-allocation".

This is an opt-in tweak for leak diagnostics to reference the allocation
site if the diagnostic consumer only wants a pithy amount of information,
and not the entire path.

This is a strawman enhancement that I expect to see some experimentation
with over the next week, and can go away if we don't want it.

Currently it is only used by RetainCountChecker, but could be used
by MallocChecker if and when we decide this should stay in.

llvm-svn: 179634

1 files changed, 24 insertions, 0 deletions

diff --git a/clang/lib/StaticAnalyzer/Checkers/AllocationDiagnostics.cpp b/clang/lib/StaticAnalyzer/Checkers/AllocationDiagnostics.cpp
new file mode 100644
index 00000000000..3dec8a58c92
--- /dev/null
+++ b/clang/lib/StaticAnalyzer/Checkers/AllocationDiagnostics.cpp
@@ -0,0 +1,24 @@
+//=- AllocationDiagnostics.cpp - Config options for allocation diags *- C++ -*-//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Declares the configuration functions for leaks/allocation diagnostics.
+//
+//===--------------------------
+
+#include "AllocationDiagnostics.h"
+
+namespace clang {
+namespace ento {
+
+bool shouldIncludeAllocationSiteInLeakDiagnostics(AnalyzerOptions &AOpts) {
+  return AOpts.getBooleanOption("leak-diagnostics-reference-allocation",
+                                false);
+}
+
+}}