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implement .include in the lexer/parser instead of passing it into the streamer.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75896 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-07-16 06:14:39 +00:00
parent c2b443a698
commit 8e25e2d801
6 changed files with 42 additions and 25 deletions
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19
tools/llvm-mc/AsmLexer.cpp
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@@ -54,6 +54,21 @@ asmtok::TokKind AsmLexer::ReturnError(const char *Loc, const std::string &Msg) {
return asmtok::Error;
}
/// EnterIncludeFile - Enter the specified file. This prints an error and
/// returns true on failure.
bool AsmLexer::EnterIncludeFile(const std::string &Filename) {
int NewBuf = SrcMgr.AddIncludeFile(Filename, SMLoc::getFromPointer(CurPtr));
if (NewBuf == -1)
return true;
// Save the line number and lex buffer of the includer.
CurBuffer = NewBuf;
CurBuf = SrcMgr.getMemoryBuffer(CurBuffer);
CurPtr = CurBuf->getBufferStart();
return false;
}
int AsmLexer::getNextChar() {
char CurChar = *CurPtr++;
switch (CurChar) {
@@ -72,6 +87,10 @@ int AsmLexer::getNextChar() {
CurBuffer = SrcMgr.FindBufferContainingLoc(ParentIncludeLoc);
CurBuf = SrcMgr.getMemoryBuffer(CurBuffer);
CurPtr = ParentIncludeLoc.getPointer();
// Reset the token start pointer to the start of the new file.
TokStart = CurPtr;
return getNextChar();
}