alexfh updated this revision to Diff 39376.
alexfh marked an inline comment as done.
alexfh added a comment.

Addressed review comments.


http://reviews.llvm.org/D14192

Files:
  clang-tidy/ClangTidy.cpp
  clang-tidy/ClangTidyOptions.cpp
  clang-tidy/ClangTidyOptions.h
  test/clang-tidy/custom-diagnostics.cpp

Index: test/clang-tidy/custom-diagnostics.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/custom-diagnostics.cpp
@@ -0,0 +1,12 @@
+// RUN: clang-tidy -checks='-*,modernize-use-override,clang-diagnostic-shadow,clang-diagnostic-float-conversion' %s -- | count 0
+// RUN: clang-tidy -checks='-*,modernize-use-override,clang-diagnostic-shadow,clang-diagnostic-float-conversion' \
+// RUN:   -config='{ExtraArgs: ["-Wshadow","-Wno-unused-variable"], ExtraArgsBefore: ["-Wno-shadow","-Wfloat-conversion","-Wunused-variable"]}' %s -- \
+// RUN:   | FileCheck -implicit-check-not='{{warning:|error:}}' %s
+
+void f(float x) {
+  int a;
+  { int a; }
+  // CHECK: :[[@LINE-1]]:9: warning: declaration shadows a local variable [clang-diagnostic-shadow]
+  int b = x;
+  // CHECK: :[[@LINE-1]]:11: warning: implicit conversion turns floating-point number into integer: 'float' to 'int' [clang-diagnostic-float-conversion]
+}
Index: clang-tidy/ClangTidyOptions.h
===================================================================
--- clang-tidy/ClangTidyOptions.h
+++ clang-tidy/ClangTidyOptions.h
@@ -83,6 +83,14 @@
 
   /// \brief Key-value mapping used to store check-specific options.
   OptionMap CheckOptions;
+
+  typedef std::vector<std::string> ArgList;
+
+  /// \brief Add extra compilation arguments to the end of the list.
+  llvm::Optional<ArgList> ExtraArgs;
+
+  /// \brief Add extra compilation arguments to the start of the list.
+  llvm::Optional<ArgList> ExtraArgsBefore;
 };
 
 /// \brief Abstract interface for retrieving various ClangTidy options.
Index: clang-tidy/ClangTidyOptions.cpp
===================================================================
--- clang-tidy/ClangTidyOptions.cpp
+++ clang-tidy/ClangTidyOptions.cpp
@@ -27,6 +27,7 @@
 LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(FileFilter)
 LLVM_YAML_IS_FLOW_SEQUENCE_VECTOR(FileFilter::LineRange)
 LLVM_YAML_IS_SEQUENCE_VECTOR(ClangTidyOptions::StringPair)
+LLVM_YAML_IS_SEQUENCE_VECTOR(std::string)
 
 namespace llvm {
 namespace yaml {
@@ -88,6 +89,8 @@
     IO.mapOptional("AnalyzeTemporaryDtors", Options.AnalyzeTemporaryDtors);
     IO.mapOptional("User", Options.User);
     IO.mapOptional("CheckOptions", NOpts->Options);
+    IO.mapOptional("ExtraArgs", Options.ExtraArgs);
+    IO.mapOptional("ExtraArgsBefore", Options.ExtraArgsBefore);
   }
 };
 
@@ -129,6 +132,10 @@
     Result.AnalyzeTemporaryDtors = Other.AnalyzeTemporaryDtors;
   if (Other.User)
     Result.User = Other.User;
+  if (Other.ExtraArgs)
+    Result.ExtraArgs = Other.ExtraArgs;
+  if (Other.ExtraArgsBefore)
+    Result.ExtraArgsBefore = Other.ExtraArgsBefore;
 
   for (const auto &KeyValue : Other.CheckOptions)
     Result.CheckOptions[KeyValue.first] = KeyValue.second;
Index: clang-tidy/ClangTidy.cpp
===================================================================
--- clang-tidy/ClangTidy.cpp
+++ clang-tidy/ClangTidy.cpp
@@ -36,6 +36,7 @@
 #include "clang/Tooling/Refactoring.h"
 #include "clang/Tooling/ReplacementsYaml.h"
 #include "clang/Tooling/Tooling.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Process.h"
 #include "llvm/Support/Signals.h"
@@ -376,6 +377,20 @@
              std::vector<ClangTidyError> *Errors, ProfileData *Profile) {
   ClangTool Tool(Compilations, InputFiles);
   clang::tidy::ClangTidyContext Context(std::move(OptionsProvider));
+  ArgumentsAdjuster PerFileExtraArgumentsInserter = [&Context](
+      const CommandLineArguments &Args, StringRef Filename) {
+    Context.setCurrentFile(Filename);
+    const ClangTidyOptions &Opts = Context.getOptions();
+    CommandLineArguments AdjustedArgs;
+    if (Opts.ExtraArgsBefore)
+      AdjustedArgs = *Opts.ExtraArgsBefore;
+    AdjustedArgs.insert(AdjustedArgs.begin(), Args.begin(), Args.end());
+    if (Opts.ExtraArgs)
+      AdjustedArgs.insert(AdjustedArgs.end(), Opts.ExtraArgs->begin(),
+                          Opts.ExtraArgs->end());
+    return AdjustedArgs;
+  };
+  Tool.appendArgumentsAdjuster(PerFileExtraArgumentsInserter);
   if (Profile)
     Context.setCheckProfileData(Profile);
 
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