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      1 //===-- Error.h -------------------------------------------------*- C++ -*-===//
      2 //
      3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
      4 // See https://llvm.org/LICENSE.txt for license information.
      5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
      6 //
      7 //===----------------------------------------------------------------------===//
      8 
      9 #ifndef LLVM_TOOLS_LLVM_EXEGESIS_ERROR_H
     10 #define LLVM_TOOLS_LLVM_EXEGESIS_ERROR_H
     11 
     12 #include "llvm/ADT/Twine.h"
     13 #include "llvm/Support/Error.h"
     14 
     15 namespace llvm {
     16 namespace exegesis {
     17 
     18 // A class representing failures that happened within llvm-exegesis, they are
     19 // used to report informations to the user.
     20 class Failure : public StringError {
     21 public:
     22   Failure(const Twine &S) : StringError(S, inconvertibleErrorCode()) {}
     23 };
     24 
     25 // A class representing failures that happened during clustering calculations.
     26 class ClusteringError : public ErrorInfo<ClusteringError> {
     27 public:
     28   static char ID;
     29   ClusteringError(const Twine &S) : Msg(S.str()) {}
     30 
     31   void log(raw_ostream &OS) const override;
     32 
     33   std::error_code convertToErrorCode() const override;
     34 
     35 private:
     36   std::string Msg;
     37 };
     38 
     39 // A class representing failures that happened during snippet execution.
     40 // Instead of terminating the program crashes are logged into the output.
     41 class SnippetCrash : public ErrorInfo<SnippetCrash> {
     42 public:
     43   static char ID;
     44   SnippetCrash(const Twine &S) : Msg(S.str()) {}
     45 
     46   void log(raw_ostream &OS) const override;
     47 
     48   std::error_code convertToErrorCode() const override;
     49 
     50 private:
     51   std::string Msg;
     52 };
     53 
     54 } // namespace exegesis
     55 } // namespace llvm
     56 
     57 #endif
     58