OptionValueRegex.h

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//===-- OptionValueRegex.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
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_INTERPRETER_OPTIONVALUEREGEX_H
#define LLDB_INTERPRETER_OPTIONVALUEREGEX_H
 
#include "lldb/Interpreter/OptionValue.h"
#include "lldb/Utility/RegularExpression.h"
 
namespace lldb_private {
 
class OptionValueRegex : public Cloneable<OptionValueRegex, OptionValue> {
public:
  OptionValueRegex(const char *value = nullptr)
      : m_regex(value), m_default_regex_str(value) {}
 
  ~OptionValueRegex() override = default;
 
  // Virtual subclass pure virtual overrides
 
  OptionValue::Type GetType() const override { return eTypeRegex; }
 
  void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
                 uint32_t dump_mask) override;
 
  llvm::json::Value ToJSON(const ExecutionContext *exe_ctx) const override {
    return m_regex.GetText();
  }
 
  Status
  SetValueFromString(llvm::StringRef value,
                     VarSetOperationType op = eVarSetOperationAssign) override;
 
  bool IsDefault() const override {
    return m_regex.GetText() == m_default_regex_str;
  }
 
  // Subclass specific functions
  const RegularExpression *GetCurrentValue() const {
    return (m_regex.IsValid() ? &m_regex : nullptr);
  }
 
  void SetCurrentValue(const char *value) {
    if (value && value[0])
      m_regex = RegularExpression(llvm::StringRef(value));
    else
      m_regex = RegularExpression();
  }
 
  bool IsValid() const { return m_regex.IsValid(); }
 
protected:
  void ClearImpl() override {
    m_regex = RegularExpression(m_default_regex_str);
    m_value_was_set = false;
  }
 
  RegularExpression m_regex;
  std::string m_default_regex_str;
};
 
} // namespace lldb_private
 
#endif // LLDB_INTERPRETER_OPTIONVALUEREGEX_H