[clang] [llvm] [clang][ssaf] Add the TUSummaryExtractorRegistry (PR #173290)

[Balázs Benics via cfe-commits]

================
@@ -0,0 +1,44 @@
+//===- MockSummaryExtractor1.cpp ------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "MockTUSummaryBuilder.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/Analysis/Scalable/TUSummary/ExtractorRegistry.h"
+#include "clang/Analysis/Scalable/TUSummary/TUSummaryBuilder.h"
+
+using namespace clang;
+using namespace ssaf;
+
+namespace {
+class MockSummaryExtractor1 : public TUSummaryExtractor {
+public:
+  MockSummaryExtractor1(TUSummaryBuilder &Builder)
+      : TUSummaryExtractor(Builder) {
+    getFakeBuilder().sendMessage(
+        "MockSummaryExtractor1 constructor was invoked");
+  }
+
+  ~MockSummaryExtractor1() {
+    getFakeBuilder().sendMessage(
+        "MockSummaryExtractor1 destructor was invoked");
+  }
+
+  void HandleTranslationUnit(ASTContext &Ctx) override {
+    getFakeBuilder().sendMessage(
+        "MockSummaryExtractor1 HandleTranslationUnit was invoked");
+  }
+
+  MockTUSummaryBuilder &getFakeBuilder() {
+    return static_cast<MockTUSummaryBuilder &>(SummaryBuilder);
+  }
+};
+
+static TUSummaryExtractorRegistry::Add<MockSummaryExtractor1>
----------------
steakhal wrote:

Added an example in 3d3e09e7ada71a18aee766f0d862488efd6cff2f

https://github.com/llvm/llvm-project/pull/173290