llvm-project/lldb/source/Interpreter/Property.cpp

//===-- Property.cpp --------------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "lldb/Interpreter/Property.h"

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/UserSettingsController.h"
#include "lldb/Host/StringConvert.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/OptionArgParser.h"
#include "lldb/Interpreter/OptionValues.h"
#include "lldb/Target/Language.h"

using namespace lldb;
using namespace lldb_private;

Property::Property(const PropertyDefinition &definition)
    : m_name(definition.name), m_description(definition.description),
      m_value_sp(), m_is_global(definition.global) {
  switch (definition.type) {
  case OptionValue::eTypeInvalid:
  case OptionValue::eTypeProperties:
    break;
  case OptionValue::eTypeArch:
    // "definition.default_uint_value" is not used
    // "definition.default_cstr_value" as a string value that represents the
    // default string value for the architecture/triple
    m_value_sp.reset(new OptionValueArch(definition.default_cstr_value));
    break;

  case OptionValue::eTypeArgs:
    // "definition.default_uint_value" is always a OptionValue::Type
    m_value_sp.reset(new OptionValueArgs());
    break;

  case OptionValue::eTypeArray:
    // "definition.default_uint_value" is always a OptionValue::Type
    m_value_sp.reset(new OptionValueArray(OptionValue::ConvertTypeToMask(
        (OptionValue::Type)definition.default_uint_value)));
    break;

  case OptionValue::eTypeBoolean:
    // "definition.default_uint_value" is the default boolean value if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default value.
    if (definition.default_cstr_value)
      m_value_sp.reset(new OptionValueBoolean(OptionArgParser::ToBoolean(
          llvm::StringRef(definition.default_cstr_value), false, nullptr)));
    else
      m_value_sp.reset(
          new OptionValueBoolean(definition.default_uint_value != 0));
    break;

  case OptionValue::eTypeChar: {
    llvm::StringRef s(definition.default_cstr_value ? definition.default_cstr_value : "");
    m_value_sp = std::make_shared<OptionValueChar>(
        OptionArgParser::ToChar(s, '\0', nullptr));
    break;
  }
  case OptionValue::eTypeDictionary:
    // "definition.default_uint_value" is always a OptionValue::Type
    m_value_sp.reset(new OptionValueDictionary(OptionValue::ConvertTypeToMask(
        (OptionValue::Type)definition.default_uint_value)));
    break;

  case OptionValue::eTypeEnum:
    // "definition.default_uint_value" is the default enumeration value if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default
    // value.
    {
      OptionValueEnumeration *enum_value = new OptionValueEnumeration(
          definition.enum_values, definition.default_uint_value);
      m_value_sp.reset(enum_value);
      if (definition.default_cstr_value) {
        if (enum_value
                ->SetValueFromString(
                    llvm::StringRef(definition.default_cstr_value))
                .Success()) {
          enum_value->SetDefaultValue(enum_value->GetCurrentValue());
          // Call Clear() since we don't want the value to appear as
          // having been set since we called SetValueFromString() above.
          // Clear will set the current value to the default and clear
          // the boolean that says that the value has been set.
          enum_value->Clear();
        }
      }
    }
    break;

  case OptionValue::eTypeFileSpec: {
    // "definition.default_uint_value" represents if the
    // "definition.default_cstr_value" should
    // be resolved or not
    const bool resolve = definition.default_uint_value != 0;
    m_value_sp.reset(new OptionValueFileSpec(
        FileSpec(definition.default_cstr_value, resolve), resolve));
    break;
  }

  case OptionValue::eTypeFileSpecList:
    // "definition.default_uint_value" is not used for a
    // OptionValue::eTypeFileSpecList
    m_value_sp.reset(new OptionValueFileSpecList());
    break;

  case OptionValue::eTypeFormat:
    // "definition.default_uint_value" is the default format enumeration value
    // if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default
    // value.
    {
      Format new_format = eFormatInvalid;
      if (definition.default_cstr_value)
        OptionArgParser::ToFormat(definition.default_cstr_value, new_format,
                                  nullptr);
      else
        new_format = (Format)definition.default_uint_value;
      m_value_sp.reset(new OptionValueFormat(new_format));
    }
    break;

  case OptionValue::eTypeLanguage:
    // "definition.default_uint_value" is the default language enumeration value
    // if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default
    // value.
    {
      LanguageType new_lang = eLanguageTypeUnknown;
      if (definition.default_cstr_value)
        Language::GetLanguageTypeFromString(
            llvm::StringRef(definition.default_cstr_value));
      else
        new_lang = (LanguageType)definition.default_uint_value;
      m_value_sp.reset(new OptionValueLanguage(new_lang));
    }
    break;

  case OptionValue::eTypeFormatEntity:
    // "definition.default_cstr_value" as a string value that represents the
    // default
    m_value_sp.reset(
        new OptionValueFormatEntity(definition.default_cstr_value));
    break;

  case OptionValue::eTypePathMap:
    // "definition.default_uint_value" tells us if notifications should occur
    // for
    // path mappings
    m_value_sp.reset(
        new OptionValuePathMappings(definition.default_uint_value != 0));
    break;

  case OptionValue::eTypeRegex:
    // "definition.default_uint_value" is used to the regular expression flags
    // "definition.default_cstr_value" the default regular expression value
    // value.
    m_value_sp.reset(new OptionValueRegex(definition.default_cstr_value));
    break;

  case OptionValue::eTypeSInt64:
    // "definition.default_uint_value" is the default integer value if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default
    // value.
    m_value_sp.reset(new OptionValueSInt64(
        definition.default_cstr_value
            ? StringConvert::ToSInt64(definition.default_cstr_value)
            : definition.default_uint_value));
    break;

  case OptionValue::eTypeUInt64:
    // "definition.default_uint_value" is the default unsigned integer value if
    // "definition.default_cstr_value" is NULL, otherwise interpret
    // "definition.default_cstr_value" as a string value that represents the
    // default
    // value.
    m_value_sp.reset(new OptionValueUInt64(
        definition.default_cstr_value
            ? StringConvert::ToUInt64(definition.default_cstr_value)
            : definition.default_uint_value));
    break;

  case OptionValue::eTypeUUID:
    // "definition.default_uint_value" is not used for a OptionValue::eTypeUUID
    // "definition.default_cstr_value" can contain a default UUID value
    {
      UUID uuid;
      if (definition.default_cstr_value)
        uuid.SetFromCString(definition.default_cstr_value);
      m_value_sp.reset(new OptionValueUUID(uuid));
    }
    break;

  case OptionValue::eTypeString:
    // "definition.default_uint_value" can contain the string option flags OR'ed
    // together
    // "definition.default_cstr_value" can contain a default string value
    {
      OptionValueString *string_value =
          new OptionValueString(definition.default_cstr_value);
      if (definition.default_uint_value != 0)
        string_value->GetOptions().Reset(definition.default_uint_value);
      m_value_sp.reset(string_value);
    }
    break;
  }
}

Property::Property(const ConstString &name, const ConstString &desc,
                   bool is_global, const lldb::OptionValueSP &value_sp)
    : m_name(name), m_description(desc), m_value_sp(value_sp),
      m_is_global(is_global) {}

bool Property::DumpQualifiedName(Stream &strm) const {
  if (m_name) {
    if (m_value_sp->DumpQualifiedName(strm))
      strm.PutChar('.');
    strm << m_name;
    return true;
  }
  return false;
}

void Property::Dump(const ExecutionContext *exe_ctx, Stream &strm,
                    uint32_t dump_mask) const {
  if (m_value_sp) {
    const bool dump_desc = dump_mask & OptionValue::eDumpOptionDescription;
    const bool transparent = m_value_sp->ValueIsTransparent();
    if (dump_desc || !transparent) {
      if ((dump_mask & OptionValue::eDumpOptionName) && m_name) {
        DumpQualifiedName(strm);
        if (dump_mask & ~OptionValue::eDumpOptionName)
          strm.PutChar(' ');
      }
    }
    if (dump_desc) {
      llvm::StringRef desc = GetDescription();
      if (!desc.empty())
        strm << "-- " << desc;

      if (transparent && (dump_mask == (OptionValue::eDumpOptionName |
                                        OptionValue::eDumpOptionDescription)))
        strm.EOL();
    }
    m_value_sp->DumpValue(exe_ctx, strm, dump_mask);
  }
}

void Property::DumpDescription(CommandInterpreter &interpreter, Stream &strm,
                               uint32_t output_width,
                               bool display_qualified_name) const {
  if (!m_value_sp)
    return;
  llvm::StringRef desc = GetDescription();

  if (desc.empty())
    return;

  StreamString qualified_name;
  const OptionValueProperties *sub_properties = m_value_sp->GetAsProperties();
  if (sub_properties) {
    strm.EOL();

    if (m_value_sp->DumpQualifiedName(qualified_name))
      strm.Printf("'%s' variables:\n\n", qualified_name.GetData());
    sub_properties->DumpAllDescriptions(interpreter, strm);
  } else {
    if (display_qualified_name) {
      StreamString qualified_name;
      DumpQualifiedName(qualified_name);
      interpreter.OutputFormattedHelpText(strm, qualified_name.GetString(),
                                          "--", desc, output_width);
    } else {
      interpreter.OutputFormattedHelpText(strm, m_name.GetStringRef(), "--",
                                          desc, output_width);
    }
  }
}

void Property::SetValueChangedCallback(OptionValueChangedCallback callback,
                                       void *baton) {
  if (m_value_sp)
    m_value_sp->SetValueChangedCallback(callback, baton);
}