[PATCH] D87627: [clang-tidy] Fix crash in modernize-use-noexcept on uninstantiated throw class
Zinovy Nis via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Mon Sep 14 12:37:05 PDT 2020
zinovy.nis created this revision.
zinovy.nis added reviewers: alexfh, rsmith.
zinovy.nis added a project: clang-tools-extra.
Herald added subscribers: cfe-commits, xazax.hun.
Herald added a project: clang.
zinovy.nis requested review of this revision.
Bug: https://bugs.llvm.org/show_bug.cgi?id=47446
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D87627
Files:
clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
clang-tools-extra/test/clang-tidy/checkers/modernize-use-noexcept-opt.cpp
Index: clang-tools-extra/test/clang-tidy/checkers/modernize-use-noexcept-opt.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/modernize-use-noexcept-opt.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/modernize-use-noexcept-opt.cpp
@@ -19,6 +19,11 @@
// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: dynamic exception specification 'throw(int(int))' is deprecated; consider removing it instead [modernize-use-noexcept]
// CHECK-FIXES: void k() ;
+// Shouldn't crash due to llvm_unreachable in canThrow() on EST_Uninstantiated
+template <int> class c { void *operator new(size_t) throw (int);};
+void s() { c<1> doesnt_crash; }
+// CHECK-MESSAGES: :[[@LINE-2]]:53: warning: dynamic exception specification 'throw (int)' is deprecated; consider removing it instead [modernize-use-noexcept]
+
void foobar() throw(A, B)
{}
// CHECK-MESSAGES: :[[@LINE-2]]:15: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider removing it instead [modernize-use-noexcept]
Index: clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
+++ clang-tools-extra/clang-tidy/modernize/UseNoexceptCheck.cpp
@@ -77,13 +77,16 @@
.getExceptionSpecRange();
}
+ assert(FnTy && "FunctionProtoType is null.");
+ if (clang::isUnresolvedExceptionSpec(FnTy->getExceptionSpecType()))
+ return;
+
assert(Range.isValid() && "Exception Source Range is invalid.");
CharSourceRange CRange = Lexer::makeFileCharRange(
CharSourceRange::getTokenRange(Range), *Result.SourceManager,
Result.Context->getLangOpts());
- assert(FnTy && "FunctionProtoType is null.");
bool IsNoThrow = FnTy->isNothrow();
StringRef ReplacementStr =
IsNoThrow
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