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//===- Error.cpp - tblgen error handling helper routines --------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file contains error handling helper routines to pretty-print diagnostic
// messages from tblgen.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/Twine.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/WithColor.h"
#include "llvm/TableGen/Error.h"
#include "llvm/TableGen/Record.h"
#include <cstdlib>
namespace llvm {
SourceMgr SrcMgr;
unsigned ErrorsPrinted = 0;
static void PrintMessage(ArrayRef<SMLoc> Loc, SourceMgr::DiagKind Kind,
const Twine &Msg) {
// Count the total number of errors printed.
// This is used to exit with an error code if there were any errors.
if (Kind == SourceMgr::DK_Error)
++ErrorsPrinted;
SMLoc NullLoc;
if (Loc.empty())
Loc = NullLoc;
SrcMgr.PrintMessage(Loc.front(), Kind, Msg);
for (unsigned i = 1; i < Loc.size(); ++i)
SrcMgr.PrintMessage(Loc[i], SourceMgr::DK_Note,
"instantiated from multiclass");
}
// Functions to print notes.
void PrintNote(const Twine &Msg) {
WithColor::note() << Msg << "\n";
}
void PrintNote(ArrayRef<SMLoc> NoteLoc, const Twine &Msg) {
PrintMessage(NoteLoc, SourceMgr::DK_Note, Msg);
}
// Functions to print fatal notes.
void PrintFatalNote(const Twine &Msg) {
PrintNote(Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
void PrintFatalNote(ArrayRef<SMLoc> NoteLoc, const Twine &Msg) {
PrintNote(NoteLoc, Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// This method takes a Record and uses the source location
// stored in it.
void PrintFatalNote(const Record *Rec, const Twine &Msg) {
PrintNote(Rec->getLoc(), Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// This method takes a RecordVal and uses the source location
// stored in it.
void PrintFatalNote(const RecordVal *RecVal, const Twine &Msg) {
PrintNote(RecVal->getLoc(), Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// Functions to print warnings.
void PrintWarning(const Twine &Msg) { WithColor::warning() << Msg << "\n"; }
void PrintWarning(ArrayRef<SMLoc> WarningLoc, const Twine &Msg) {
PrintMessage(WarningLoc, SourceMgr::DK_Warning, Msg);
}
void PrintWarning(const char *Loc, const Twine &Msg) {
SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Warning, Msg);
}
// Functions to print errors.
void PrintError(const Twine &Msg) { WithColor::error() << Msg << "\n"; }
void PrintError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
PrintMessage(ErrorLoc, SourceMgr::DK_Error, Msg);
}
void PrintError(const char *Loc, const Twine &Msg) {
SrcMgr.PrintMessage(SMLoc::getFromPointer(Loc), SourceMgr::DK_Error, Msg);
}
// This method takes a Record and uses the source location
// stored in it.
void PrintError(const Record *Rec, const Twine &Msg) {
PrintMessage(Rec->getLoc(), SourceMgr::DK_Error, Msg);
}
// This method takes a RecordVal and uses the source location
// stored in it.
void PrintError(const RecordVal *RecVal, const Twine &Msg) {
PrintMessage(RecVal->getLoc(), SourceMgr::DK_Error, Msg);
}
// Functions to print fatal errors.
void PrintFatalError(const Twine &Msg) {
PrintError(Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
PrintError(ErrorLoc, Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// This method takes a Record and uses the source location
// stored in it.
void PrintFatalError(const Record *Rec, const Twine &Msg) {
PrintError(Rec->getLoc(), Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// This method takes a RecordVal and uses the source location
// stored in it.
void PrintFatalError(const RecordVal *RecVal, const Twine &Msg) {
PrintError(RecVal->getLoc(), Msg);
// The following call runs the file cleanup handlers.
sys::RunInterruptHandlers();
std::exit(1);
}
// Check an assertion: Obtain the condition value and be sure it is true.
// If not, print a nonfatal error along with the message.
void CheckAssert(SMLoc Loc, Init *Condition, Init *Message) {
auto *CondValue = dyn_cast_or_null<IntInit>(
Condition->convertInitializerTo(IntRecTy::get()));
if (!CondValue)
PrintError(Loc, "assert condition must of type bit, bits, or int.");
else if (!CondValue->getValue()) {
PrintError(Loc, "assertion failed");
if (auto *MessageInit = dyn_cast<StringInit>(Message))
PrintNote(MessageInit->getValue());
else
PrintNote("(assert message is not a string)");
}
}
} // end namespace llvm
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