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| //===-- OptionValueString.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 liblldb_OptionValueString_h_
#define liblldb_OptionValueString_h_
#include <string>
#include "lldb/Utility/Flags.h"
#include "lldb/Interpreter/OptionValue.h"
namespace lldb_private {
class OptionValueString : public OptionValue {
public:
typedef Status (*ValidatorCallback)(const char *string, void *baton);
enum Options { eOptionEncodeCharacterEscapeSequences = (1u << 0) };
OptionValueString()
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(), m_validator_baton() {}
OptionValueString(ValidatorCallback validator, void *baton = nullptr)
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(validator), m_validator_baton(baton) {}
OptionValueString(const char *value)
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(), m_validator_baton() {
if (value && value[0]) {
m_current_value.assign(value);
m_default_value.assign(value);
}
}
OptionValueString(const char *current_value, const char *default_value)
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(), m_validator_baton() {
if (current_value && current_value[0])
m_current_value.assign(current_value);
if (default_value && default_value[0])
m_default_value.assign(default_value);
}
OptionValueString(const char *value, ValidatorCallback validator,
void *baton = nullptr)
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(validator), m_validator_baton(baton) {
if (value && value[0]) {
m_current_value.assign(value);
m_default_value.assign(value);
}
}
OptionValueString(const char *current_value, const char *default_value,
ValidatorCallback validator, void *baton = nullptr)
: OptionValue(), m_current_value(), m_default_value(), m_options(),
m_validator(validator), m_validator_baton(baton) {
if (current_value && current_value[0])
m_current_value.assign(current_value);
if (default_value && default_value[0])
m_default_value.assign(default_value);
}
~OptionValueString() override = default;
// Virtual subclass pure virtual overrides
OptionValue::Type GetType() const override { return eTypeString; }
void DumpValue(const ExecutionContext *exe_ctx, Stream &strm,
uint32_t dump_mask) override;
Status
SetValueFromString(llvm::StringRef value,
VarSetOperationType op = eVarSetOperationAssign) override;
Status
SetValueFromString(const char *,
VarSetOperationType = eVarSetOperationAssign) = delete;
bool Clear() override {
m_current_value = m_default_value;
m_value_was_set = false;
return true;
}
lldb::OptionValueSP DeepCopy() const override;
// Subclass specific functions
Flags &GetOptions() { return m_options; }
const Flags &GetOptions() const { return m_options; }
const char *operator=(const char *value) {
SetCurrentValue(llvm::StringRef::withNullAsEmpty(value));
return m_current_value.c_str();
}
const char *GetCurrentValue() const { return m_current_value.c_str(); }
llvm::StringRef GetCurrentValueAsRef() const { return m_current_value; }
const char *GetDefaultValue() const { return m_default_value.c_str(); }
llvm::StringRef GetDefaultValueAsRef() const { return m_default_value; }
Status SetCurrentValue(const char *) = delete;
Status SetCurrentValue(llvm::StringRef value);
Status AppendToCurrentValue(const char *value);
void SetDefaultValue(const char *value) {
if (value && value[0])
m_default_value.assign(value);
else
m_default_value.clear();
}
bool IsCurrentValueEmpty() const { return m_current_value.empty(); }
bool IsDefaultValueEmpty() const { return m_default_value.empty(); }
protected:
std::string m_current_value;
std::string m_default_value;
Flags m_options;
ValidatorCallback m_validator;
void *m_validator_baton;
};
} // namespace lldb_private
#endif // liblldb_OptionValueString_h_
|