Author: Hana Joo
Date: 2021-05-12T12:57:21+01:00
New Revision: 163325086c35b3984c5e6f7a2adb6022003fcd84

URL: 
https://github.com/llvm/llvm-project/commit/163325086c35b3984c5e6f7a2adb6022003fcd84
DIFF: 
https://github.com/llvm/llvm-project/commit/163325086c35b3984c5e6f7a2adb6022003fcd84.diff

LOG: [clang-tidy] Enable the use of IgnoreArray flag in pro-type-member-init 
rule

The `IgnoreArray` flag was not used before while running the rule. Fixes [[ 
https://bugs.llvm.org/show_bug.cgi?id=47288 | b/47288 ]]

Reviewed By: njames93

Differential Revision: https://reviews.llvm.org/D101239

Added: 
    
clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.ignorearrays.cpp

Modified: 
    clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp

Removed: 
    


################################################################################
diff  --git 
a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp 
b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
index f4468367ffa3..43812fe17a1c 100644
--- a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
@@ -402,6 +402,8 @@ void ProTypeMemberInitCheck::checkMissingMemberInitializer(
   // Gather all fields (direct and indirect) that need to be initialized.
   SmallPtrSet<const FieldDecl *, 16> FieldsToInit;
   forEachField(ClassDecl, ClassDecl.fields(), [&](const FieldDecl *F) {
+    if (IgnoreArrays && F->getType()->isArrayType())
+      return;
     if (!F->hasInClassInitializer() &&
         utils::type_traits::isTriviallyDefaultConstructible(F->getType(),
                                                             Context) &&

diff  --git 
a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.ignorearrays.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.ignorearrays.cpp
new file mode 100644
index 000000000000..1b526089b2fb
--- /dev/null
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.ignorearrays.cpp
@@ -0,0 +1,16 @@
+// RUN: %check_clang_tidy %s \
+// RUN: cppcoreguidelines-pro-type-member-init %t \
+// RUN: -config="{CheckOptions: \
+// RUN: [{key: cppcoreguidelines-pro-type-member-init.IgnoreArrays, value: 
true} ]}"
+
+typedef int TypedefArray[4];
+using UsingArray = int[4];
+
+struct HasArrayMember {
+  HasArrayMember() {}
+  // CHECK-MESSAGES: warning: constructor does not initialize these fields: 
Number
+  UsingArray U;
+  TypedefArray T;
+  int RawArray[4];
+  int Number;
+};


        
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