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Handle missing newline at EOF more gracefully in MC AsmLexer.

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If we see an EOF w/o a preceding end-of-line, return an EndOfStatement
token before returning the Eof token.

Based on patch by Stepan Dyatkovskiy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139798 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-09-15 16:52:06 +00:00
parent 6b6e32d954
commit 70796ca867
1 changed files with 8 additions and 1 deletions
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9
lib/MC/MCParser/AsmLexer.cpp
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@ -375,8 +375,15 @@ AsmToken AsmLexer::LexToken() {
return AsmToken(AsmToken::EndOfStatement,
StringRef(TokStart, strlen(MAI.getSeparatorString())));
}
isAtStartOfLine = false;
// If we're missing a newline at EOF, make sure we still get an
// EndOfStatement token before the Eof token.
if (CurChar == EOF && !isAtStartOfLine) {
isAtStartOfLine = true;
return AsmToken(AsmToken::EndOfStatement, StringRef(TokStart, 1));
}
isAtStartOfLine = false;
switch (CurChar) {
default:
// Handle identifier: [a-zA-Z_.][a-zA-Z0-9_$.@]*