Don Hinton ccbda6b000 [test] Fix plugin tests
Recommit of r361790 that was temporarily reverted in r361793 due to bot breakage.

Summary:
The following changes were required to fix these tests:

1) Change LLVM_ENABLE_PLUGINS to an option and move it to
   llvm/CMakeLists.txt with an appropriate default -- which matches
   the original default behavior.

2) Move the plugins directory from clang/test/Analysis
   clang/lib/Analysis.  It's not enough to add an exclude to the
   lit.local.cfg file because add_lit_testsuites recurses the tree and
   automatically adds the appropriate `check-` targets, which don't
   make sense for the plugins because they aren't tests and don't
   have `RUN` statements.

   Here's a list of the `clang-check-anlysis*` targets with this
   change:

```
  $ ninja -t targets all| sed -n "s/.*\/\(check[^:]*\):.*/\1/p" | sort -u | grep clang-analysis
  check-clang-analysis
  check-clang-analysis-checkers
  check-clang-analysis-copypaste
  check-clang-analysis-diagnostics
  check-clang-analysis-engine
  check-clang-analysis-exploration_order
  check-clang-analysis-html_diagnostics
  check-clang-analysis-html_diagnostics-relevant_lines
  check-clang-analysis-inlining
  check-clang-analysis-objc
  check-clang-analysis-unified-sources
  check-clang-analysis-z3
```

3) Simplify the logic and only include the subdirectories under
   clang/lib/Analysis/plugins if LLVM_ENABLE_PLUGINS is set.

Reviewed By: NoQ

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62445

llvm-svn: 362328
2019-06-02 15:53:43 +00:00

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#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h"
using namespace clang;
using namespace ento;
namespace {
struct Dependency : public Checker<check::BeginFunction> {
void checkBeginFunction(CheckerContext &Ctx) const {}
};
struct DependendentChecker : public Checker<check::BeginFunction> {
void checkBeginFunction(CheckerContext &Ctx) const {}
};
} // end anonymous namespace
// Register plugin!
extern "C" void clang_registerCheckers(CheckerRegistry &registry) {
registry.addChecker<Dependency>("example.Dependency", "", "");
registry.addChecker<DependendentChecker>("example.DependendentChecker", "",
"");
registry.addDependency("example.DependendentChecker", "example.Dependency");
}
extern "C" const char clang_analyzerAPIVersionString[] =
CLANG_ANALYZER_API_VERSION_STRING;