[llvm-branch-commits] [clang-tools-extra] 35f2c3a - [clang-tidy] cppcoreguidelines-pro-type-member-init: suppress warning for default member funcs

2020-12-20 Thread Malcolm Parsons via llvm-branch-commits

Author: Chris Warner
Date: 2020-12-20T11:22:41Z
New Revision: 35f2c3a8b41fd3b6ef88d013a7c3ed9478b765e4

URL: 
https://github.com/llvm/llvm-project/commit/35f2c3a8b41fd3b6ef88d013a7c3ed9478b765e4
DIFF: 
https://github.com/llvm/llvm-project/commit/35f2c3a8b41fd3b6ef88d013a7c3ed9478b765e4.diff

LOG: [clang-tidy] cppcoreguidelines-pro-type-member-init: suppress warning for 
default member funcs

Modify the cppcoreguidelines-pro-type-member-init checker to ignore warnings 
from the move and copy-constructors when they are compiler defined with `= 
default` outside of the type declaration.

Reported as [LLVM bug 36819](https://bugs.llvm.org/show_bug.cgi?id=36819)

Reviewed By: malcolm.parsons

Differential Revision: https://reviews.llvm.org/D9

Added: 


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

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

Removed: 




diff  --git 
a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp 
b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
index a223d215af1b..67856be843e7 100644
--- a/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/ProTypeMemberInitCheck.cpp
@@ -297,6 +297,10 @@ void ProTypeMemberInitCheck::check(const 
MatchFinder::MatchResult &Result) {
 // Skip declarations delayed by late template parsing without a body.
 if (!Ctor->getBody())
   return;
+// Skip out-of-band explicitly defaulted special member functions
+// (except the default constructor).
+if (Ctor->isExplicitlyDefaulted() && !Ctor->isDefaultConstructor())
+  return;
 checkMissingMemberInitializer(*Result.Context, *Ctor->getParent(), Ctor);
 checkMissingBaseClassInitializer(*Result.Context, *Ctor->getParent(), 
Ctor);
   } else if (const auto *Record =

diff  --git 
a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.cpp
index 28230dd6952e..403f28baf99d 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-pro-type-member-init.cpp
@@ -501,3 +501,19 @@ struct NegativeImplicitInheritedCtor : 
NegativeImplicitInheritedCtorBase {
 void Bug33557() {
   NegativeImplicitInheritedCtor I(5);
 }
+
+struct NegativeDefaultedCtorOutOfDecl {
+  NegativeDefaultedCtorOutOfDecl(const NegativeDefaultedCtorOutOfDecl &);
+  int F;
+};
+
+NegativeDefaultedCtorOutOfDecl::NegativeDefaultedCtorOutOfDecl(const 
NegativeDefaultedCtorOutOfDecl &) = default;
+
+struct PositiveDefaultConstructorOutOfDecl {
+  PositiveDefaultConstructorOutOfDecl();
+  int F;
+  // CHECK-FIXES: int F{};
+};
+
+PositiveDefaultConstructorOutOfDecl::PositiveDefaultConstructorOutOfDecl() = 
default;
+// CHECK-MESSAGES: :[[@LINE-1]]:1: warning: constructor does not initialize 
these fields: F



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[llvm-branch-commits] [clang-tools-extra] d272d3a - [clang-tidy] Ignore implicit casts in modernize-use-default-member-init

2020-01-14 Thread Malcolm Parsons via llvm-branch-commits

Author: Malcolm Parsons
Date: 2020-01-14T09:54:31Z
New Revision: d272d3a1885a82d6ccf5b3d5b6841f79d81e24e5

URL: 
https://github.com/llvm/llvm-project/commit/d272d3a1885a82d6ccf5b3d5b6841f79d81e24e5
DIFF: 
https://github.com/llvm/llvm-project/commit/d272d3a1885a82d6ccf5b3d5b6841f79d81e24e5.diff

LOG: [clang-tidy] Ignore implicit casts in modernize-use-default-member-init

Summary:
Initialising a pointer from nullptr involves an implicit cast.
Ignore it after getting initialiser from InitListExpr.

Fixes: PR0

Reviewers: aaron.ballman, alexfh, JonasToth

Reviewed By: JonasToth

Subscribers: xazax.hun, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72630

Added: 


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

clang-tools-extra/test/clang-tidy/checkers/modernize-use-default-member-init.cpp

Removed: 




diff  --git 
a/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp 
b/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
index 1e59acb1ff17..e99a90ffba57 100644
--- a/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
+++ b/clang-tools-extra/clang-tidy/modernize/UseDefaultMemberInitCheck.cpp
@@ -137,7 +137,7 @@ static const Expr *ignoreUnaryPlus(const Expr *E) {
 static const Expr *getInitializer(const Expr *E) {
   auto *InitList = dyn_cast(E);
   if (InitList && InitList->getNumInits() == 1)
-return InitList->getInit(0);
+return InitList->getInit(0)->IgnoreParenImpCasts();
   return E;
 }
 

diff  --git 
a/clang-tools-extra/test/clang-tidy/checkers/modernize-use-default-member-init.cpp
 
b/clang-tools-extra/test/clang-tidy/checkers/modernize-use-default-member-init.cpp
index 5af9855835ca..0dffeea1c9b7 100644
--- 
a/clang-tools-extra/test/clang-tidy/checkers/modernize-use-default-member-init.cpp
+++ 
b/clang-tools-extra/test/clang-tidy/checkers/modernize-use-default-member-init.cpp
@@ -291,7 +291,7 @@ struct ExistingInt {
   int e1{};
   int e2 = 0;
   int e3 = {5};
-  int e4 = 5;
+  int e4{5};
   int e5 = -5;
   int e6 = +5;
 };
@@ -315,7 +315,7 @@ struct ExistingDouble {
   double e1{};
   double e2 = 0.0;
   double e3 = 5.0;
-  double e4 = -5.0;
+  double e4{-5.0};
   double e5 = +5.0;
 };
 
@@ -333,7 +333,7 @@ struct ExistingBool {
   // CHECK-FIXES: ExistingBool(long) : e1(true), e2(true) {}
   bool e1{};
   bool e2 = false;
-  bool e3 = true;
+  bool e3{true};
 };
 
 struct ExistingEnum {
@@ -365,7 +365,7 @@ struct ExistingPointer {
   // CHECK-FIXES: ExistingPointer(long) :  e4(&e2) {}
   int *e1{};
   int *e2 = 0;
-  int *e3 = nullptr;
+  int *e3{nullptr};
   int **e4 = &e1;
 };
 



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