[clang-tidy] Simplify default member init check

Differential Revision: https://reviews.llvm.org/D97145

Author: steveire

clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp

@@ -207,33 +207,29 @@ void UseDefaultMemberInitCheck::registerMatchers(MatchFinder *Finder) {
             declRefExpr(to(enumConstantDecl())));
 
   auto Init =
-      anyOf(initListExpr(anyOf(
-                allOf(initCountIs(1), hasInit(0, ignoringImplicit(InitBase))),
-                initCountIs(0))),
+      anyOf(initListExpr(anyOf(allOf(initCountIs(1), hasInit(0, InitBase)),
+                               initCountIs(0))),
             InitBase);
 
   Finder->addMatcher(
       cxxConstructorDecl(
-          isDefaultConstructor(), unless(isInstantiated()),
+          isDefaultConstructor(),
           forEachConstructorInitializer(
               cxxCtorInitializer(
                   forField(unless(anyOf(getLangOpts().CPlusPlus20
                                             ? unless(anything())
                                             : isBitField(),
                                         hasInClassInitializer(anything()),
                                         hasParent(recordDecl(isUnion()))))),
-                  isWritten(), withInitializer(ignoringImplicit(Init)))
+                  withInitializer(Init))
                   .bind("default"))),
       this);
 
   Finder->addMatcher(
-      cxxConstructorDecl(
-          unless(ast_matchers::isTemplateInstantiation()),
-          forEachConstructorInitializer(
-              cxxCtorInitializer(forField(hasInClassInitializer(anything())),
-                                 isWritten(),
-                                 withInitializer(ignoringImplicit(Init)))
-                  .bind("existing"))),
+      cxxConstructorDecl(forEachConstructorInitializer(
+          cxxCtorInitializer(forField(hasInClassInitializer(anything())),
+                             withInitializer(Init))
+              .bind("existing"))),
       this);
 }
 

clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.h

@@ -30,6 +30,9 @@ class UseDefaultMemberInitCheck : public ClangTidyCheck {
   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+  llvm::Optional<TraversalKind> getCheckTraversalKind() const override {
+    return TK_IgnoreUnlessSpelledInSource;
+  }
 
 private:
   void checkDefaultInit(const ast_matchers::MatchFinder::MatchResult &Result,