//===-- DebugSupport.h ------------------------------------------*- 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 defines functions which generate more readable forms of data
//  structures used in the dataflow analyses, for debugging purposes.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_DEBUGSUPPORT_H_
#define LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_DEBUGSUPPORT_H_

#include <string>
#include <vector>

#include "clang/Analysis/FlowSensitive/Solver.h"
#include "clang/Analysis/FlowSensitive/Value.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringRef.h"

namespace clang {
namespace dataflow {

/// Returns a string representation of a value kind.
llvm::StringRef debugString(Value::Kind Kind);

/// Returns a string representation of a boolean assignment to true or false.
llvm::StringRef debugString(Solver::Result::Assignment Assignment);

/// Returns a string representation of the result status of a SAT check.
llvm::StringRef debugString(Solver::Result::Status Status);

/// Returns a string representation for the boolean value `B`.
///
/// Atomic booleans appearing in the boolean value `B` are assigned to labels
/// either specified in `AtomNames` or created by default rules as B0, B1, ...
///
/// Requirements:
///
///   Names assigned to atoms should not be repeated in `AtomNames`.
std::string debugString(
    const BoolValue &B,
    llvm::DenseMap<const AtomicBoolValue *, std::string> AtomNames = {{}});

/// Returns a string representation for `Constraints` - a collection of boolean
/// formulas.
///
/// Atomic booleans appearing in the boolean value `Constraints` are assigned to
/// labels either specified in `AtomNames` or created by default rules as B0,
/// B1, ...
///
/// Requirements:
///
///   Names assigned to atoms should not be repeated in `AtomNames`.
std::string debugString(
    const llvm::DenseSet<BoolValue *> &Constraints,
    llvm::DenseMap<const AtomicBoolValue *, std::string> AtomNames = {{}});

/// Returns a string representation for `Constraints` - a collection of boolean
/// formulas and the `Result` of satisfiability checking.
///
/// Atomic booleans appearing in `Constraints` and `Result` are assigned to
/// labels either specified in `AtomNames` or created by default rules as B0,
/// B1, ...
///
/// Requirements:
///
///   Names assigned to atoms should not be repeated in `AtomNames`.
std::string debugString(
    ArrayRef<BoolValue *> Constraints, const Solver::Result &Result,
    llvm::DenseMap<const AtomicBoolValue *, std::string> AtomNames = {{}});
inline std::string debugString(
    const llvm::DenseSet<BoolValue *> &Constraints,
    const Solver::Result &Result,
    llvm::DenseMap<const AtomicBoolValue *, std::string> AtomNames = {{}}) {
  std::vector<BoolValue *> ConstraintsVec(Constraints.begin(),
                                          Constraints.end());
  return debugString(ConstraintsVec, Result, std::move(AtomNames));
}

} // namespace dataflow
} // namespace clang

#endif // LLVM_CLANG_ANALYSIS_FLOWSENSITIVE_DEBUGSUPPORT_H_