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SourceMgr: Colorize diagnostics.

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Same color scheme as clang uses. The colors are only enabled if the output is a tty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155035 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2012-04-18 19:04:15 +00:00
parent a5b0685142
commit 89f33fdb77
2 changed files with 46 additions and 9 deletions
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7
include/llvm/Support/SourceMgr.h
View File

@ -128,8 +128,11 @@ public:
/// PrintMessage - Emit a message about the specified location with the
/// specified string.
///
/// @param ShowColors - Display colored messages if output is a terminal and
/// the default error handler is used.
void PrintMessage(SMLoc Loc, DiagKind Kind, const Twine &Msg,
ArrayRef<SMRange> Ranges = ArrayRef<SMRange>()) const;
ArrayRef<SMRange> Ranges = ArrayRef<SMRange>(),
bool ShowColors = true) const;
/// GetMessage - Return an SMDiagnostic at the specified location with the
@ -188,7 +191,7 @@ public:
const std::vector<std::pair<unsigned, unsigned> > &getRanges() const {
return Ranges;
}
void print(const char *ProgName, raw_ostream &S) const;
void print(const char *ProgName, raw_ostream &S, bool ShowColors = true) const;
};
} // end llvm namespace

48
lib/Support/SourceMgr.cpp
View File

@ -193,7 +193,8 @@ SMDiagnostic SourceMgr::GetMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
}
void SourceMgr::PrintMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
const Twine &Msg, ArrayRef<SMRange> Ranges) const {
const Twine &Msg, ArrayRef<SMRange> Ranges,
bool ShowColors) const {
SMDiagnostic Diagnostic = GetMessage(Loc, Kind, Msg, Ranges);
// Report the message with the diagnostic handler if present.
@ -208,7 +209,7 @@ void SourceMgr::PrintMessage(SMLoc Loc, SourceMgr::DiagKind Kind,
assert(CurBuf != -1 && "Invalid or unspecified location!");
PrintIncludeStack(getBufferInfo(CurBuf).IncludeLoc, OS);
Diagnostic.print(0, OS);
Diagnostic.print(0, OS, ShowColors);
}
//===----------------------------------------------------------------------===//
@ -225,7 +226,14 @@ SMDiagnostic::SMDiagnostic(const SourceMgr &sm, SMLoc L, const std::string &FN,
}
void SMDiagnostic::print(const char *ProgName, raw_ostream &S) const {
void SMDiagnostic::print(const char *ProgName, raw_ostream &S,
bool ShowColors) const {
// Display colors only if OS goes to a tty.
ShowColors &= S.is_displayed();
if (ShowColors)
S.changeColor(raw_ostream::SAVEDCOLOR, true);
if (ProgName && ProgName[0])
S << ProgName << ": ";
@ -244,13 +252,33 @@ void SMDiagnostic::print(const char *ProgName, raw_ostream &S) const {
}
switch (Kind) {
case SourceMgr::DK_Error: S << "error: "; break;
case SourceMgr::DK_Warning: S << "warning: "; break;
case SourceMgr::DK_Note: S << "note: "; break;
case SourceMgr::DK_Error:
if (ShowColors)
S.changeColor(raw_ostream::RED, true);
S << "error: ";
break;
case SourceMgr::DK_Warning:
if (ShowColors)
S.changeColor(raw_ostream::MAGENTA, true);
S << "warning: ";
break;
case SourceMgr::DK_Note:
if (ShowColors)
S.changeColor(raw_ostream::BLACK, true);
S << "note: ";
break;
}
if (ShowColors) {
S.resetColor();
S.changeColor(raw_ostream::SAVEDCOLOR, true);
}
S << Message << '\n';
if (ShowColors)
S.resetColor();
if (LineNo == -1 || ColumnNo == -1)
return;
@ -292,6 +320,9 @@ void SMDiagnostic::print(const char *ProgName, raw_ostream &S) const {
}
S << '\n';
if (ShowColors)
S.changeColor(raw_ostream::GREEN, true);
// Print out the caret line, matching tabs in the source line.
for (unsigned i = 0, e = CaretLine.size(), OutCol = 0; i != e; ++i) {
if (i >= LineContents.size() || LineContents[i] != '\t') {
@ -306,6 +337,9 @@ void SMDiagnostic::print(const char *ProgName, raw_ostream &S) const {
++OutCol;
} while (OutCol & 7);
}
if (ShowColors)
S.resetColor();
S << '\n';
}