https://bugs.llvm.org/show_bug.cgi?id=41944
Bug ID: 41944
Summary: Rewriter::getRangeSize wrong on Comments
Product: clang
Version: 8.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: libclang
Assignee: unassignedclangb...@nondot.org
Reporter: m_en...@cs.uni-kl.de
CC: kli...@google.com, llvm-bugs@lists.llvm.org,
richard-l...@metafoo.co.uk
I registered a CommentHandler::HandleComment(Preprocessor & PP, SourceRange
Comment) to the preprocessor.
When it is called and I ask Rewriter::getRangeSize(Comment, /* any options */)
about the size, it is wrong if the comment is followed by another token
immediately.
Case 1: int x = 5 /* test */ ;
Case 2: int y = 5 /* test */;
In case 1, everything works fine.
In case 2, however, the semicolon is reported within the size, which is caused
by the Lexer::MeasureTokenLength call in getRangeSize.
So either Rewriter::getRangeSize or Lexer::MeasureTokenLength is messing things
up here. Unfortunately I'm not deep enough in the code to narrow it down any
further.
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