Szelethus updated this revision to Diff 190992.
Szelethus added a comment.

Add a test case for checker plugins.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57860/new/

https://reviews.llvm.org/D57860

Files:
  include/clang/Basic/DiagnosticDriverKinds.td
  include/clang/StaticAnalyzer/Frontend/CheckerRegistry.h
  lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp
  test/Analysis/checker-plugins.c
  test/Analysis/invalid-checker-option.c

Index: test/Analysis/invalid-checker-option.c
===================================================================
--- test/Analysis/invalid-checker-option.c
+++ test/Analysis/invalid-checker-option.c
@@ -14,6 +14,63 @@
 // CHECK-NON-EXISTENT-CHECKER: (frontend): no analyzer checkers or packages
 // CHECK-NON-EXISTENT-CHECKER-SAME: are associated with 'RetainOneTwoThree'
 
+
+// Every other error should be avoidable in compatiblity mode.
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config debug.AnalysisOrder:Everything=false \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-NON-EXISTENT-CHECKER-OPTION
+
+// CHECK-NON-EXISTENT-CHECKER-OPTION: (frontend): checker 'debug.AnalysisOrder'
+// CHECK-NON-EXISTENT-CHECKER-OPTION-SAME: has no option called 'Everything'
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config-compatibility-mode=true \
+// RUN:   -analyzer-config debug.AnalysisOrder:Everything=false
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config debug.AnalysisOrder:*=nothankyou \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-INVALID-BOOL-VALUE
+
+// CHECK-INVALID-BOOL-VALUE: (frontend): invalid input for checker option
+// CHECK-INVALID-BOOL-VALUE-SAME: 'debug.AnalysisOrder:*', that expects a
+// CHECK-INVALID-BOOL-VALUE-SAME: boolean value
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config-compatibility-mode=true \
+// RUN:   -analyzer-config debug.AnalysisOrder:*=nothankyou
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config optin.performance.Padding:AllowedPad=surpriseme \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-INVALID-INT-VALUE
+
+// CHECK-INVALID-INT-VALUE: (frontend): invalid input for checker option
+// CHECK-INVALID-INT-VALUE-SAME: 'optin.performance.Padding:AllowedPad', that
+// CHECK-INVALID-INT-VALUE-SAME: expects an integer value
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config-compatibility-mode=true \
+// RUN:   -analyzer-config optin.performance.Padding:AllowedPad=surpriseme
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -analyzer-checker=core \
+// RUN:   -analyzer-config nullability:NoDiagnoseCallsToSystemHeaders=sure \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-PACKAGE-VALUE
+
+// CHECK-PACKAGE-VALUE: (frontend): invalid input for checker option
+// CHECK-PACKAGE-VALUE-SAME: 'nullability:NoDiagnoseCallsToSystemHeaders', that
+// CHECK-PACKAGE-VALUE-SAME: expects a boolean value
+
 // expected-no-diagnostics
 
 int main() {}
Index: test/Analysis/checker-plugins.c
===================================================================
--- test/Analysis/checker-plugins.c
+++ test/Analysis/checker-plugins.c
@@ -62,3 +62,35 @@
 // RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-CHECKER-OPTION-TRUE
 
 // CHECK-CHECKER-OPTION-TRUE: example.MyChecker:ExampleOption = true
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -load %llvmshlibdir/OptionHandlingAnalyzerPlugin%pluginext\
+// RUN:   -analyzer-checker=example.MyChecker \
+// RUN:   -analyzer-config example.MyChecker:Example=true \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-NON-EXISTENT-CHECKER-OPTION
+
+// CHECK-NON-EXISTENT-CHECKER-OPTION: (frontend): checker 'example.MyChecker'
+// CHECK-NON-EXISTENT-CHECKER-OPTION-SAME: has no option called 'Example'
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -load %llvmshlibdir/OptionHandlingAnalyzerPlugin%pluginext\
+// RUN:   -analyzer-checker=example.MyChecker \
+// RUN:   -analyzer-config-compatibility-mode=true \
+// RUN:   -analyzer-config example.MyChecker:Example=true
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -load %llvmshlibdir/OptionHandlingAnalyzerPlugin%pluginext\
+// RUN:   -analyzer-checker=example.MyChecker \
+// RUN:   -analyzer-config example.MyChecker:ExampleOption=example \
+// RUN:   2>&1 | FileCheck %s -check-prefix=CHECK-INVALID-BOOL-VALUE
+
+// CHECK-INVALID-BOOL-VALUE: (frontend): invalid input for checker option
+// CHECK-INVALID-BOOL-VALUE-SAME: 'example.MyChecker:ExampleOption', that
+// CHECK-INVALID-BOOL-VALUE-SAME: expects a boolean value
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN:   -load %llvmshlibdir/OptionHandlingAnalyzerPlugin%pluginext\
+// RUN:   -analyzer-checker=example.MyChecker \
+// RUN:   -analyzer-config-compatibility-mode=true \
+// RUN:   -analyzer-config example.MyChecker:ExampleOption=example
Index: lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp
===================================================================
--- lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp
+++ lib/StaticAnalyzer/Frontend/CheckerRegistry.cpp
@@ -9,6 +9,7 @@
 #include "clang/StaticAnalyzer/Frontend/CheckerRegistry.h"
 #include "clang/Basic/Diagnostic.h"
 #include "clang/Basic/LLVM.h"
+#include "clang/Driver/DriverDiagnostic.h"
 #include "clang/Frontend/FrontendDiagnostic.h"
 #include "clang/StaticAnalyzer/Checkers/BuiltinCheckerRegistration.h"
 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
@@ -308,18 +309,61 @@
   Dependencies.emplace_back(FullName, Dependency);
 }
 
+/// Insert the checker/package option to AnalyzerOptions' config table, and
+/// validate it, if the user supplied it on the command line.
+static void insertAndValidate(StringRef FullName,
+                              const CheckerRegistry::CmdLineOption &Option,
+                              AnalyzerOptions &AnOpts,
+                              DiagnosticsEngine &Diags) {
+
+  std::string FullOption = (FullName + ":" + Option.OptionName).str();
+
+  auto It = AnOpts.Config.insert({FullOption, Option.DefaultValStr});
+
+  // Insertation was successful -- CmdLineOption's constructor will validate
+  // whether values received from plugins or TableGen files are correct.
+  if (It.second)
+    return;
+
+  // Insertion failed, the user supplied this package/checker option on the
+  // command line. If the supplied value is invalid, we'll emit an error.
+
+  StringRef SuppliedValue = It.first->getValue();
+
+  if (Option.OptionType == "bool") {
+    if (SuppliedValue != "true" && SuppliedValue != "false") {
+      if (AnOpts.ShouldEmitErrorsOnInvalidConfigValue) {
+        Diags.Report(diag::err_analyzer_checker_option_invalid_input)
+            << FullOption << "a boolean value";
+      }
+    }
+    return;
+  }
+
+  if (Option.OptionType == "int") {
+    int Tmp;
+    bool HasFailed = SuppliedValue.getAsInteger(0, Tmp);
+    if (HasFailed) {
+      if (AnOpts.ShouldEmitErrorsOnInvalidConfigValue) {
+        Diags.Report(diag::err_analyzer_checker_option_invalid_input)
+            << FullOption << "an integer value";
+      }
+    }
+    return;
+  }
+}
+
 template <class T>
 static void
 insertOptionToCollection(StringRef FullName, T &Collection,
                          const CheckerRegistry::CmdLineOption &&Option,
-                         AnalyzerOptions &AnOpts) {
+                         AnalyzerOptions &AnOpts, DiagnosticsEngine &Diags) {
   auto It = binaryFind(Collection, FullName);
   assert(It != Collection.end() &&
          "Failed to find the checker while attempting to add a command line "
          "option to it!");
 
-  AnOpts.Config.insert(
-      {(FullName + ":" + Option.OptionName).str(), Option.DefaultValStr});
+  insertAndValidate(FullName, Option, AnOpts, Diags);
 
   It->CmdLineOptions.emplace_back(std::move(Option));
 }
@@ -328,14 +372,14 @@
   for (const std::pair<StringRef, CmdLineOption> &CheckerOptEntry :
        CheckerOptions) {
     insertOptionToCollection(CheckerOptEntry.first, Checkers,
-                             std::move(CheckerOptEntry.second), AnOpts);
+                             std::move(CheckerOptEntry.second), AnOpts, Diags);
   }
   CheckerOptions.clear();
 
   for (const std::pair<StringRef, CmdLineOption> &PackageOptEntry :
        PackageOptions) {
-    insertOptionToCollection(PackageOptEntry.first, Checkers,
-                             std::move(PackageOptEntry.second), AnOpts);
+    insertOptionToCollection(PackageOptEntry.first, Packages,
+                             std::move(PackageOptEntry.second), AnOpts, Diags);
   }
   PackageOptions.clear();
 }
@@ -389,23 +433,62 @@
   }
 }
 
+static void
+isOptionContainedIn(const CheckerRegistry::CmdLineOptionList &OptionList,
+                    StringRef SuppliedChecker, StringRef SuppliedOption,
+                    const AnalyzerOptions &AnOpts, DiagnosticsEngine &Diags) {
+
+  if (!AnOpts.ShouldEmitErrorsOnInvalidConfigValue)
+    return;
+
+  using CmdLineOption = CheckerRegistry::CmdLineOption;
+
+  auto SameOptName = [SuppliedOption](const CmdLineOption &Opt) {
+    return Opt.OptionName == SuppliedOption;
+  };
+
+  auto OptionIt = llvm::find_if(OptionList, SameOptName);
+
+  if (OptionIt == OptionList.end()) {
+    Diags.Report(diag::err_analyzer_checker_option_unknown)
+        << SuppliedChecker << SuppliedOption;
+    return;
+  }
+}
+
 void CheckerRegistry::validateCheckerOptions() const {
   for (const auto &Config : AnOpts.Config) {
-    size_t Pos = Config.getKey().find(':');
-    if (Pos == StringRef::npos)
+
+    StringRef SuppliedChecker;
+    StringRef SuppliedOption;
+    std::tie(SuppliedChecker, SuppliedOption) = Config.getKey().split(':');
+
+    if (SuppliedOption.empty())
       continue;
 
-    bool HasChecker = false;
-    StringRef CheckerName = Config.getKey().substr(0, Pos);
-    for (const auto &Checker : Checkers) {
-      if (Checker.FullName.startswith(CheckerName) &&
-          (Checker.FullName.size() == Pos || Checker.FullName[Pos] == '.')) {
-        HasChecker = true;
-        break;
-      }
+    // AnalyzerOptions' config table contains the user input, so it entry could
+    // look like this:
+    //
+    //   cor:NoFalsePositives=true
+    //
+    // Since lower_bound would look for the first element *not less* than "cor",
+    // it would return with an iterator to the first checker in the core, so we
+    // we really have to use find here, which uses operator==.
+    auto CheckerIt = llvm::find(Checkers, CheckerInfo(SuppliedChecker));
+    if (CheckerIt != Checkers.end()) {
+      isOptionContainedIn(CheckerIt->CmdLineOptions, SuppliedChecker,
+                          SuppliedOption, AnOpts, Diags);
+      continue;
     }
-    if (!HasChecker)
-      Diags.Report(diag::err_unknown_analyzer_checker) << CheckerName;
+
+    auto PackageIt = llvm::find(Packages, PackageInfo(SuppliedChecker));
+    if (PackageIt != Packages.end()) {
+      isOptionContainedIn(PackageIt->CmdLineOptions, SuppliedChecker,
+                          SuppliedOption, AnOpts, Diags);
+      continue;
+    }
+
+    Diags.Report(diag::err_unknown_analyzer_checker) << SuppliedChecker;
   }
 }
 
Index: include/clang/StaticAnalyzer/Frontend/CheckerRegistry.h
===================================================================
--- include/clang/StaticAnalyzer/Frontend/CheckerRegistry.h
+++ include/clang/StaticAnalyzer/Frontend/CheckerRegistry.h
@@ -107,6 +107,17 @@
       assert((OptionType == "bool" || OptionType == "string" ||
               OptionType == "int") &&
              "Unknown command line option type!");
+
+      assert((OptionType != "bool" ||
+              (DefaultValStr == "true" || DefaultValStr == "false")) &&
+             "Invalid value for boolean command line option! Maybe incorrect "
+             "parameters to the addCheckerOption or addPackageOption method?");
+
+      int Tmp;
+      assert((OptionType != "int" || !DefaultValStr.getAsInteger(0, Tmp)) &&
+             "Invalid value for integer command line option! Maybe incorrect "
+             "parameters to the addCheckerOption or addPackageOption method?");
+      (void)Tmp;
     }
   };
 
@@ -149,6 +160,12 @@
       return State == StateFromCmdLine::State_Disabled && ShouldRegister(LO);
     }
 
+    // Since each checker must have a different full name, we can identify
+    // CheckerInfo objects by them.
+    bool operator==(const CheckerInfo &Rhs) const {
+      return FullName == Rhs.FullName;
+    }
+
     CheckerInfo(InitializationFunction Fn, ShouldRegisterFunction sfn,
                 StringRef Name, StringRef Desc, StringRef DocsUri)
         : Initialize(Fn), ShouldRegister(sfn), FullName(Name), Desc(Desc),
Index: include/clang/Basic/DiagnosticDriverKinds.td
===================================================================
--- include/clang/Basic/DiagnosticDriverKinds.td
+++ include/clang/Basic/DiagnosticDriverKinds.td
@@ -303,6 +303,8 @@
 def err_analyzer_config_invalid_input : Error<
   "invalid input for analyzer-config option '%0', that expects %1 value">;
 def err_analyzer_config_unknown : Error<"unknown analyzer-config '%0'">;
+def err_analyzer_checker_option_unknown : Error<
+  "checker '%0' has no option called '%1'">;
 def err_analyzer_checker_option_invalid_input : Error<
   "invalid input for checker option '%0', that expects %1">;
 
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