https://bugs.llvm.org/show_bug.cgi?id=32438
Bug ID: 32438
Summary: clang-format: crash in NamespaceEndCommentsFixer
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Formatter
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Created attachment 18179
--> https://bugs.llvm.org/attachment.cgi?id=18179&action=edit
Reproducer
I get a SIGSEGV when running
clang-format a.cpp
on the following creduced a.cpp (attached)
template <int> struct a {};
struct a<bool{}> b() {
}
#define c inline
void d() {
}
The backtrace is as follows:
Program received signal SIGSEGV, Segmentation fault.
(anonymous namespace)::Token::is (this=0x0,
K=(anonymous namespace)::(anonymous namespace)::TokenKind::kw_namespace)
at ../tools/clang/include/clang/Lex/Token.h:94
94 bool is(tok::TokenKind K) const { return Kind == K; }
(gdb) bt
#0 (anonymous namespace)::Token::is (this=0x0,
K=(anonymous namespace)::(anonymous namespace)::TokenKind::kw_namespace)
at ../tools/clang/include/clang/Lex/Token.h:94
#1 0x000000000032be20 in (anonymous namespace)::(anonymous
namespace)::FormatToken::is (this=0x0,
Kind=(anonymous namespace)::(anonymous namespace)::TokenKind::kw_namespace)
at ../tools/clang/lib/Format/FormatToken.h:292
#2 0x000000000032c850 in (anonymous namespace)::(anonymous
namespace)::FormatToken::isNot<clang::tok::TokenKind> (this=0x0,
Kind=(anonymous namespace)::(anonymous namespace)::TokenKind::kw_namespace)
at ../tools/clang/lib/Format/FormatToken.h:308
#3 0x000000000036808a in (anonymous namespace)::(anonymous
namespace)::NamespaceEndCommentsFixer::analyze (this=0x7fffffffc0e0,
Annotator=..., AnnotatedLines=..., Tokens=...)
at ../tools/clang/lib/Format/NamespaceEndCommentsFixer.cpp:136
#4 0x00000000003744e5 in (anonymous namespace)::(anonymous
namespace)::TokenAnalyzer::process (
this=0x7fffffffc0e0) at ../tools/clang/lib/Format/TokenAnalyzer.cpp:110
#5 0x000000000031ab5f in operator() (this=0x7fffffffc838, Fixer=...)
at ../tools/clang/lib/Format/Format.cpp:1842
#6 0x000000000031a9e0 in (anonymous namespace)::(anonymous
namespace)::reformat (Style=..., Code=...,
Ranges=..., FileName=..., IncompleteFormat=0x7fffffffca9f)
at ../tools/clang/lib/Format/Format.cpp:1860
#7 0x00000000002c8159 in (anonymous namespace)::(anonymous namespace)::format
(FileName=...)
at ../tools/clang/tools/clang-format/ClangFormat.cpp:280
#8 0x00000000002c75dc in main (argc=2, argv=0x7fffffffddc8)
at ../tools/clang/tools/clang-format/ClangFormat.cpp:367
In tools/clang/lib/Format/NamespaceEndCommentsFixer.cpp:136,
NamespaceTok is null. I guess that would be the place to check for it.
I built from SVN, currently at 298877.
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