Revert "Implement a new clang-tidy check that suggests users replace dynamic exception specifications with noexcept exception specifications."

This reverts commit r293217, its follow-up 293218 and part of 293234 because it
broke all bots that build clang-tools-extra.

llvm-svn: 293267

1 files changed, 0 insertions, 114 deletions

diff --git a/clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp b/clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
deleted file mode 100644
index a38274ebbd2..00000000000
--- a/clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-//===--- UseNoexceptCheck.cpp - clang-tidy---------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "UseNoexceptCheck.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/Lex/Lexer.h"
-
-using namespace clang::ast_matchers;
-
-namespace clang {
-namespace tidy {
-namespace modernize {
-
-UseNoexceptCheck::UseNoexceptCheck(StringRef Name, ClangTidyContext *Context)
-    : ClangTidyCheck(Name, Context),
-      NoexceptMacro(Options.get("ReplacementString", "")),
-      UseNoexceptFalse(Options.get("UseNoexceptFalse", true)) {}
-
-void UseNoexceptCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
-  Options.store(Opts, "ReplacementString", NoexceptMacro);
-  Options.store(Opts, "UseNoexceptFalse", UseNoexceptFalse);
-}
-
-void UseNoexceptCheck::registerMatchers(MatchFinder *Finder) {
-  if (!getLangOpts().CPlusPlus11)
-    return;
-
-  Finder->addMatcher(
-      functionDecl(
-          cxxMethodDecl(
-              hasTypeLoc(loc(functionProtoType(hasDynamicExceptionSpec()))),
-              anyOf(hasOverloadedOperatorName("delete[]"),
-                    hasOverloadedOperatorName("delete"), cxxDestructorDecl()))
-              .bind("del-dtor"))
-          .bind("funcDecl"),
-      this);
-
-  Finder->addMatcher(
-      functionDecl(
-          hasTypeLoc(loc(functionProtoType(hasDynamicExceptionSpec()))),
-          unless(anyOf(hasOverloadedOperatorName("delete[]"),
-                       hasOverloadedOperatorName("delete"),
-                       cxxDestructorDecl())))
-          .bind("funcDecl"),
-      this);
-
-  Finder->addMatcher(
-      parmVarDecl(anyOf(hasType(pointerType(pointee(parenType(innerType(
-                            functionProtoType(hasDynamicExceptionSpec())))))),
-                        hasType(memberPointerType(pointee(parenType(innerType(
-                            functionProtoType(hasDynamicExceptionSpec()))))))))
-          .bind("parmVarDecl"),
-      this);
-}
-
-void UseNoexceptCheck::check(const MatchFinder::MatchResult &Result) {
-  const FunctionProtoType *FnTy = nullptr;
-  bool DtorOrOperatorDel = false;
-  SourceRange Range;
-
-  if (const auto *FuncDecl = Result.Nodes.getNodeAs<FunctionDecl>("funcDecl")) {
-    DtorOrOperatorDel = Result.Nodes.getNodeAs<FunctionDecl>("del-dtor");
-    FnTy = FuncDecl->getType()->getAs<FunctionProtoType>();
-    if (const auto *TSI = FuncDecl->getTypeSourceInfo())
-      Range =
-          TSI->getTypeLoc().castAs<FunctionTypeLoc>().getExceptionSpecRange();
-  } else if (const auto *ParmDecl =
-                 Result.Nodes.getNodeAs<ParmVarDecl>("parmVarDecl")) {
-    FnTy = ParmDecl->getType()
-               ->getAs<Type>()
-               ->getPointeeType()
-               ->getAs<FunctionProtoType>();
-
-    if (const auto *TSI = ParmDecl->getTypeSourceInfo())
-      Range = TSI->getTypeLoc()
-                  .getNextTypeLoc()
-                  .IgnoreParens()
-                  .castAs<FunctionProtoTypeLoc>()
-                  .getExceptionSpecRange();
-  }
-  CharSourceRange CRange = Lexer::makeFileCharRange(
-      CharSourceRange::getTokenRange(Range), *Result.SourceManager,
-      Result.Context->getLangOpts());
-
-  assert(FnTy && "FunctionProtoType is null.");
-  bool IsNoThrow = FnTy->isNothrow(*Result.Context);
-  StringRef ReplacementStr =
-      IsNoThrow
-          ? NoexceptMacro.empty() ? "noexcept" : NoexceptMacro
-          : NoexceptMacro.empty()
-                ? (DtorOrOperatorDel || UseNoexceptFalse) ? "noexcept(false)"
-                                                          : ""
-                : "";
-
-  FixItHint FixIt;
-  if ((IsNoThrow || NoexceptMacro.empty()) && CRange.isValid())
-    FixIt = FixItHint::CreateReplacement(CRange, ReplacementStr);
-
-  diag(Range.getBegin(), "dynamic exception specification '%0' is deprecated; "
-                         "consider %select{using '%2'|removing it}1 instead")
-      << Lexer::getSourceText(CRange, *Result.SourceManager,
-                              Result.Context->getLangOpts())
-      << ReplacementStr.empty() << ReplacementStr << FixIt;
-}
-
-} // namespace modernize
-} // namespace tidy
-} // namespace clang