llvm-project/clang/Driver/TextDiagnostics.cpp
Chris Lattner dc5c055fd1 Reimplement SourceLocation. Instead of having a
fileid/offset pair, it now contains a bit discriminating between
mapped locations and file locations.  This separates the tables for
macros and files in SourceManager, and allows better separation of
concepts in the rest of the compiler.  This allows us to have *many*
macro instantiations before running out of 'addressing space'.

This is also more efficient, because testing whether something is a
macro expansion is now a bit test instead of a table lookup (which
also used to require having a srcmgr around, now it doesn't).

This is fully functional, but there are several refinements and
optimizations left.

llvm-svn: 40103
2007-07-20 16:37:10 +00:00

59 lines
2.1 KiB
C++

//===--- TextDiagnostics.cpp - Text Diagnostics Parent Class --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Bill Wendling and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the parent class for all text diagnostics.
//
//===----------------------------------------------------------------------===//
#include "TextDiagnostics.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Lex/HeaderSearch.h"
using namespace clang;
TextDiagnostics:: ~TextDiagnostics() {}
std::string TextDiagnostics::FormatDiagnostic(Diagnostic::Level Level,
diag::kind ID,
const std::string *Strs,
unsigned NumStrs) {
std::string Msg = Diagnostic::getDescription(ID);
// Replace all instances of %0 in Msg with 'Extra'.
for (unsigned i = 0; i < Msg.size() - 1; ++i) {
if (Msg[i] == '%' && isdigit(Msg[i + 1])) {
unsigned StrNo = Msg[i + 1] - '0';
Msg = std::string(Msg.begin(), Msg.begin() + i) +
(StrNo < NumStrs ? Strs[StrNo] : "<<<INTERNAL ERROR>>>") +
std::string(Msg.begin() + i + 2, Msg.end());
}
}
return Msg;
}
bool TextDiagnostics::IgnoreDiagnostic(Diagnostic::Level Level,
SourceLocation Pos) {
if (Pos.isValid()) {
// If this is a warning or note, and if it a system header, suppress the
// diagnostic.
if (Level == Diagnostic::Warning ||
Level == Diagnostic::Note) {
if (const FileEntry *F = SourceMgr.getFileEntryForLoc(Pos)) {
DirectoryLookup::DirType DirInfo = TheHeaderSearch->getFileDirFlavor(F);
if (DirInfo == DirectoryLookup::SystemHeaderDir ||
DirInfo == DirectoryLookup::ExternCSystemHeaderDir)
return true;
}
}
}
return false;
}