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author | Richard Smith <richard-llvm@metafoo.co.uk> | 2018-04-30 05:25:48 +0000 |
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committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2018-04-30 05:25:48 +0000 |
commit | ef91bd38cd94e34b4b0a30e225e507f5c10087d3 (patch) | |
tree | a32eb01379c5c7f1f1bcd6a2528cabeedda12c80 /lib/Edit | |
parent | 9ab08c3357404e43c970e2e7438c796dd33f4593 (diff) |
PR37189 Fix incorrect end source location and spelling for a split '>>' token.
When a '>>' token is split into two '>' tokens (in C++11 onwards), or (as an
extension) when we do the same for other tokens starting with a '>', we can't
just use a location pointing to the first '>' as the location of the split
token, because that would result in our miscomputing the length and spelling
for the token. As a consequence, for example, a refactoring replacing 'A<X>'
with something else would sometimes replace one character too many, and
similarly diagnostics highlighting a template-id source range would highlight
one character too many.
Fix this by creating an expansion range covering the first character of the
'>>' token, whose spelling is '>'. For this to work, we generalize the
expansion range of a macro FileID to be either a token range (the common case)
or a character range (used in this new case).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@331155 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Edit')
-rw-r--r-- | lib/Edit/EditedSource.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Edit/EditedSource.cpp b/lib/Edit/EditedSource.cpp index 0ff2447f77..89a3eb40d0 100644 --- a/lib/Edit/EditedSource.cpp +++ b/lib/Edit/EditedSource.cpp @@ -36,12 +36,14 @@ void EditedSource::deconstructMacroArgLoc(SourceLocation Loc, SourceLocation &ExpansionLoc, MacroArgUse &ArgUse) { assert(SourceMgr.isMacroArgExpansion(Loc)); - SourceLocation DefArgLoc = SourceMgr.getImmediateExpansionRange(Loc).first; + SourceLocation DefArgLoc = + SourceMgr.getImmediateExpansionRange(Loc).getBegin(); SourceLocation ImmediateExpansionLoc = - SourceMgr.getImmediateExpansionRange(DefArgLoc).first; + SourceMgr.getImmediateExpansionRange(DefArgLoc).getBegin(); ExpansionLoc = ImmediateExpansionLoc; while (SourceMgr.isMacroBodyExpansion(ExpansionLoc)) - ExpansionLoc = SourceMgr.getImmediateExpansionRange(ExpansionLoc).first; + ExpansionLoc = + SourceMgr.getImmediateExpansionRange(ExpansionLoc).getBegin(); SmallString<20> Buf; StringRef ArgName = Lexer::getSpelling(SourceMgr.getSpellingLoc(DefArgLoc), Buf, SourceMgr, LangOpts); |