[clang-tools-extra] r343848 - [clang-tidy] Replace deprecated std::ios_base aliases
Jonas Toth via cfe-commits
cfe-commits at lists.llvm.org
Fri Oct 5 06:36:00 PDT 2018
Author: jonastoth
Date: Fri Oct 5 06:36:00 2018
New Revision: 343848
URL: http://llvm.org/viewvc/llvm-project?rev=343848&view=rev
Log:
[clang-tidy] Replace deprecated std::ios_base aliases
This check warns the uses of the deprecated member types of std::ios_base
and replaces those that have a non-deprecated equivalent.
Patch by andobence!
Reviewd by: alexfh
Revision ID: https://reviews.llvm.org/D51332
Added:
clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.cpp
clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.h
clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst
clang-tools-extra/trunk/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp
Modified:
clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt
clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp
clang-tools-extra/trunk/docs/ReleaseNotes.rst
clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst
Modified: clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt?rev=343848&r1=343847&r2=343848&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt (original)
+++ clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt Fri Oct 5 06:36:00 2018
@@ -4,6 +4,7 @@ add_clang_library(clangTidyModernizeModu
AvoidBindCheck.cpp
ConcatNestedNamespacesCheck.cpp
DeprecatedHeadersCheck.cpp
+ DeprecatedIosBaseAliasesCheck.cpp
LoopConvertCheck.cpp
LoopConvertUtils.cpp
MakeSharedCheck.cpp
Added: clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.cpp?rev=343848&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.cpp (added)
+++ clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.cpp Fri Oct 5 06:36:00 2018
@@ -0,0 +1,80 @@
+//===--- DeprecatedIosBaseAliasesCheck.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 "DeprecatedIosBaseAliasesCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+namespace modernize {
+
+static const std::array<StringRef, 5> DeprecatedTypes = {
+ "::std::ios_base::io_state", "::std::ios_base::open_mode",
+ "::std::ios_base::seek_dir", "::std::ios_base::streamoff",
+ "::std::ios_base::streampos",
+};
+
+static const llvm::StringMap<StringRef> ReplacementTypes = {
+ {"io_state", "iostate"},
+ {"open_mode", "openmode"},
+ {"seek_dir", "seekdir"}};
+
+void DeprecatedIosBaseAliasesCheck::registerMatchers(MatchFinder *Finder) {
+ // Only register the matchers for C++; the functionality currently does not
+ // provide any benefit to other languages, despite being benign.
+ if (!getLangOpts().CPlusPlus)
+ return;
+
+ auto IoStateDecl = typedefDecl(hasAnyName(DeprecatedTypes)).bind("TypeDecl");
+ auto IoStateType =
+ qualType(hasDeclaration(IoStateDecl), unless(elaboratedType()));
+
+ Finder->addMatcher(typeLoc(loc(IoStateType)).bind("TypeLoc"), this);
+}
+
+void DeprecatedIosBaseAliasesCheck::check(
+ const MatchFinder::MatchResult &Result) {
+ SourceManager &SM = *Result.SourceManager;
+
+ const auto *Typedef = Result.Nodes.getNodeAs<TypedefDecl>("TypeDecl");
+ StringRef TypeName = Typedef->getName();
+ bool HasReplacement = ReplacementTypes.count(TypeName);
+
+ const auto *TL = Result.Nodes.getNodeAs<TypeLoc>("TypeLoc");
+ SourceLocation IoStateLoc = TL->getBeginLoc();
+
+ // Do not generate fixits for matches depending on template arguments and
+ // macro expansions.
+ bool Fix = HasReplacement && !TL->getType()->isDependentType();
+ if (IoStateLoc.isMacroID()) {
+ IoStateLoc = SM.getSpellingLoc(IoStateLoc);
+ Fix = false;
+ }
+
+ SourceLocation EndLoc = IoStateLoc.getLocWithOffset(TypeName.size() - 1);
+
+ if (HasReplacement) {
+ auto FixName = ReplacementTypes.lookup(TypeName);
+ auto Builder = diag(IoStateLoc, "'std::ios_base::%0' is deprecated; use "
+ "'std::ios_base::%1' instead")
+ << TypeName << FixName;
+
+ if (Fix)
+ Builder << FixItHint::CreateReplacement(SourceRange(IoStateLoc, EndLoc),
+ FixName);
+ } else
+ diag(IoStateLoc, "'std::ios_base::%0' is deprecated") << TypeName;
+}
+
+} // namespace modernize
+} // namespace tidy
+} // namespace clang
Added: clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.h
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.h?rev=343848&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.h (added)
+++ clang-tools-extra/trunk/clang-tidy/modernize/DeprecatedIosBaseAliasesCheck.h Fri Oct 5 06:36:00 2018
@@ -0,0 +1,36 @@
+//===--- DeprecatedIosBaseAliasesCheck.h - clang-tidy------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_DEPRECATEDIOSBASEALIASESCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_DEPRECATEDIOSBASEALIASESCHECK_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+namespace modernize {
+
+/// This check warns the uses of the deprecated member types of ``std::ios_base``
+/// and replaces those that have a non-deprecated equivalent.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/modernize-deprecated-ios-base-aliases.html
+class DeprecatedIosBaseAliasesCheck : public ClangTidyCheck {
+public:
+ DeprecatedIosBaseAliasesCheck(StringRef Name, ClangTidyContext *Context)
+ : ClangTidyCheck(Name, Context) {}
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace modernize
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_DEPRECATEDIOSBASEALIASESCHECK_H
Modified: clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp?rev=343848&r1=343847&r2=343848&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp (original)
+++ clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp Fri Oct 5 06:36:00 2018
@@ -13,6 +13,7 @@
#include "AvoidBindCheck.h"
#include "ConcatNestedNamespacesCheck.h"
#include "DeprecatedHeadersCheck.h"
+#include "DeprecatedIosBaseAliasesCheck.h"
#include "LoopConvertCheck.h"
#include "MakeSharedCheck.h"
#include "MakeUniqueCheck.h"
@@ -51,6 +52,8 @@ public:
"modernize-concat-nested-namespaces");
CheckFactories.registerCheck<DeprecatedHeadersCheck>(
"modernize-deprecated-headers");
+ CheckFactories.registerCheck<DeprecatedIosBaseAliasesCheck>(
+ "modernize-deprecated-ios-base-aliases");
CheckFactories.registerCheck<LoopConvertCheck>("modernize-loop-convert");
CheckFactories.registerCheck<MakeSharedCheck>("modernize-make-shared");
CheckFactories.registerCheck<MakeUniqueCheck>("modernize-make-unique");
Modified: clang-tools-extra/trunk/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/ReleaseNotes.rst?rev=343848&r1=343847&r2=343848&view=diff
==============================================================================
--- clang-tools-extra/trunk/docs/ReleaseNotes.rst (original)
+++ clang-tools-extra/trunk/docs/ReleaseNotes.rst Fri Oct 5 06:36:00 2018
@@ -99,6 +99,12 @@ Improvements to clang-tidy
Checks for uses of nested namespaces in the form of
``namespace a { namespace b { ... }}`` and offers change to
syntax introduced in C++17 standard: ``namespace a::b { ... }``.
+
+- New :doc:`modernize-deprecated-ios-base-aliases
+ <clang-tidy/checks/modernize-deprecated-ios-base-aliases>` check.
+
+ This check warns the uses of the deprecated member types of ``std::ios_base``
+ and replaces those that have a non-deprecated equivalent.
- New :doc:`readability-magic-numbers
<clang-tidy/checks/readability-magic-numbers>` check.
Modified: clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst?rev=343848&r1=343847&r2=343848&view=diff
==============================================================================
--- clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst (original)
+++ clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst Fri Oct 5 06:36:00 2018
@@ -174,6 +174,7 @@ Clang-Tidy Checks
modernize-avoid-bind
modernize-concat-nested-namespaces
modernize-deprecated-headers
+ modernize-deprecated-ios-base-aliases
modernize-loop-convert
modernize-make-shared
modernize-make-unique
Added: clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst?rev=343848&view=auto
==============================================================================
--- clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst (added)
+++ clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-deprecated-ios-base-aliases.rst Fri Oct 5 06:36:00 2018
@@ -0,0 +1,17 @@
+.. title:: clang-tidy - modernize-deprecated-ios-base-aliases
+
+modernize-deprecated-ios-base-aliases
+=====================================
+
+This check warns the uses of the deprecated member types of ``std::ios_base``
+and replaces those that have a non-deprecated equivalent.
+
+=================================== ===========================
+Deprecated member type Replacement
+=================================== ===========================
+``std::ios_base::io_state`` ``std::ios_base::iostate``
+``std::ios_base::open_mode`` ``std::ios_base::openmode``
+``std::ios_base::seek_dir`` ``std::ios_base::seekdir``
+``std::ios_base::streamoff``
+``std::ios_base::streampos``
+=================================== ===========================
Added: clang-tools-extra/trunk/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp?rev=343848&view=auto
==============================================================================
--- clang-tools-extra/trunk/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp (added)
+++ clang-tools-extra/trunk/test/clang-tidy/modernize-deprecated-ios-base-aliases.cpp Fri Oct 5 06:36:00 2018
@@ -0,0 +1,239 @@
+// RUN: %check_clang_tidy %s modernize-deprecated-ios-base-aliases %t
+
+namespace std {
+class ios_base {
+public:
+ typedef int io_state;
+ typedef int open_mode;
+ typedef int seek_dir;
+
+ typedef int streampos;
+ typedef int streamoff;
+};
+
+template <class CharT>
+class basic_ios : public ios_base {
+};
+} // namespace std
+
+// Test function return values (declaration)
+std::ios_base::io_state f_5();
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated; use 'std::ios_base::iostate' instead [modernize-deprecated-ios-base-aliases]
+// CHECK-FIXES: std::ios_base::iostate f_5();
+
+// Test function parameters.
+void f_6(std::ios_base::open_mode);
+// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::open_mode' is deprecated
+// CHECK-FIXES: void f_6(std::ios_base::openmode);
+void f_7(const std::ios_base::seek_dir &);
+// CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::seek_dir' is deprecated
+// CHECK-FIXES: void f_7(const std::ios_base::seekdir &);
+
+// Test on record type fields.
+struct A {
+ std::ios_base::io_state field;
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate field;
+
+ typedef std::ios_base::io_state int_ptr_type;
+ // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: typedef std::ios_base::iostate int_ptr_type;
+};
+
+struct B : public std::ios_base {
+ io_state a;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: iostate a;
+};
+
+struct C : public std::basic_ios<char> {
+ io_state a;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: iostate a;
+};
+
+void f_1() {
+ std::ios_base::io_state a;
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate a;
+
+ // Check that spaces aren't modified unnecessarily.
+ std :: ios_base :: io_state b;
+ // CHECK-MESSAGES: :[[@LINE-1]]:22: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std :: ios_base :: iostate b;
+
+ // Test construction from a temporary.
+ std::ios_base::io_state c = std::ios_base::io_state{};
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-MESSAGES: :[[@LINE-2]]:46: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate c = std::ios_base::iostate{};
+
+ typedef std::ios_base::io_state alias1;
+ // CHECK-MESSAGES: :[[@LINE-1]]:26: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: typedef std::ios_base::iostate alias1;
+ alias1 d(a);
+
+ using alias2 = std::ios_base::io_state;
+ // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: using alias2 = std::ios_base::iostate;
+ alias2 e;
+
+ // Test pointers.
+ std::ios_base::io_state *f;
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate *f;
+
+ // Test 'static' declarations.
+ static std::ios_base::io_state g;
+ // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: static std::ios_base::iostate g;
+
+ // Test with cv-qualifiers.
+ const std::ios_base::io_state h(0);
+ // CHECK-MESSAGES: :[[@LINE-1]]:24: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: const std::ios_base::iostate h(0);
+ volatile std::ios_base::io_state i;
+ // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: volatile std::ios_base::iostate i;
+ const volatile std::ios_base::io_state j(0);
+ // CHECK-MESSAGES: :[[@LINE-1]]:33: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: const volatile std::ios_base::iostate j(0);
+
+ // Test auto and initializer-list.
+ auto k = std::ios_base::io_state{};
+ // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: auto k = std::ios_base::iostate{};
+
+ std::ios_base::io_state l{std::ios_base::io_state()};
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-MESSAGES: :[[@LINE-2]]:44: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate l{std::ios_base::iostate()};
+
+ // Test temporaries.
+ std::ios_base::io_state();
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::ios_base::iostate();
+
+ // Test inherited type usage
+ std::basic_ios<char>::io_state m;
+ // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: std::basic_ios<char>::iostate m;
+
+ std::ios_base::streampos n;
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streampos' is deprecated [modernize-deprecated-ios-base-aliases]
+
+ std::ios_base::streamoff o;
+ // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: 'std::ios_base::streamoff' is deprecated [modernize-deprecated-ios-base-aliases]
+}
+
+// Test without the nested name specifiers.
+void f_2() {
+ using namespace std;
+
+ ios_base::io_state a;
+ // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: ios_base::iostate a;
+}
+
+// Test messing-up with macros.
+void f_4() {
+#define MACRO_1 std::ios_base::io_state
+ // CHECK-MESSAGES: :[[@LINE-1]]:32: warning: 'std::ios_base::io_state' is deprecated
+ MACRO_1 a;
+
+#define MACRO_2 io_state
+ // CHECK-MESSAGES: :[[@LINE-1]]:17: warning: 'std::ios_base::io_state' is deprecated
+ std::ios_base::MACRO_2 b;
+
+#define MACRO_3 std::ios_base
+ MACRO_3::io_state c;
+ // CHECK-MESSAGES: :[[@LINE-1]]:12: warning: 'std::ios_base::io_state' is deprecated
+
+#define MACRO_4(type) type::io_state
+ // CHECK-MESSAGES: :[[@LINE-1]]:29: warning: 'std::ios_base::io_state' is deprecated
+ MACRO_4(std::ios_base) d;
+
+#undef MACRO_1
+#undef MACRO_2
+#undef MACRO_3
+#undef MACRO_4
+}
+
+// Test function return values (definition).
+std::ios_base::io_state f_5()
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: 'std::ios_base::io_state' is deprecated
+// CHECK-FIXES: std::ios_base::iostate f_5()
+{
+ // Test constructor.
+ return std::ios_base::io_state(0);
+ // CHECK-MESSAGES: :[[@LINE-1]]:25: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: return std::ios_base::iostate(0);
+}
+
+// Test that other aliases with same name aren't replaced
+struct my_ios_base {
+ typedef int io_state;
+};
+
+namespace ns_1 {
+struct my_ios_base2 {
+ typedef int io_state;
+};
+} // namespace ns_1
+
+void f_8() {
+ my_ios_base::io_state a;
+
+ ns_1::my_ios_base2::io_state b;
+}
+
+// Test templates
+template <typename X>
+void f_9() {
+ typename std::basic_ios<X>::io_state p;
+ // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
+ typename std::ios_base::io_state q;
+ // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: typename std::ios_base::iostate q;
+}
+
+template <typename T>
+void f_10(T arg) {
+ T x(arg);
+}
+
+template <typename T>
+void f_11() {
+ typename T::io_state x{};
+ // CHECK-MESSAGES: :[[@LINE-1]]:15: warning: 'std::ios_base::io_state' is deprecated
+}
+
+template <typename T>
+struct D : std::ios_base {
+ io_state a;
+ // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: iostate a;
+
+ typename std::basic_ios<T>::io_state b;
+ // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: 'std::ios_base::io_state' is deprecated
+};
+
+template <typename T>
+struct E {
+ T t;
+};
+
+void f_12() {
+ f_9<char>();
+
+ f_10<std::ios_base::io_state>(0);
+ // CHECK-MESSAGES: :[[@LINE-1]]:23: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: f_10<std::ios_base::iostate>(0);
+
+ f_11<std::ios_base>();
+ D<char> d;
+
+ E<std::ios_base::io_state> e;
+ // CHECK-MESSAGES: :[[@LINE-1]]:20: warning: 'std::ios_base::io_state' is deprecated
+ // CHECK-FIXES: E<std::ios_base::iostate> e;
+}
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