C++ OmissionTypeName::isBoolean方法代码示例

/// Split the base name, if it makes sense.
static bool splitBaseName(StringRef &baseName, StringRef &argName,
                          const OmissionTypeName &paramType,
                          StringRef paramName) {
  // If there is already an argument label, do nothing.
  if (!argName.empty()) return false;

  // Try splitting a Boolean "Animated".
  if (paramType.isBoolean() &&
      camel_case::getLastWord(baseName) == "Animated") {
    baseName = baseName.substr(0, baseName.size() - strlen("Animated"));
    argName = "animated";
    return true;
  }

  // Don't split anything that starts with "set".
  if (camel_case::getFirstWord(baseName) == "set")
    return false;

  // Don't split a method that looks like an action (with a "sender"
  // of type AnyObject).
  if (paramName == "sender" &&
      camel_case::getLastWord(paramType.Name) == "Object")
    return false;

  // Try splitting after the last preposition.
  if (splitBaseNameAfterLastPreposition(baseName, argName, paramType))
    return true;

  return false;
}

bool swift::omitNeedlessWords(StringRef &baseName,
                              MutableArrayRef<StringRef> argNames,
                              StringRef firstParamName,
                              OmissionTypeName resultType,
                              OmissionTypeName contextType,
                              ArrayRef<OmissionTypeName> paramTypes,
                              bool returnsSelf,
                              bool isProperty,
                              const InheritedNameSet *allPropertyNames,
                              StringScratchSpace &scratch) {
  bool anyChanges = false;

  /// Local function that lowercases all of the base names and
  /// argument names before returning.
  auto lowercaseAcronymsForReturn = [&] {
    StringRef newBaseName = toLowercaseWordAndAcronym(baseName, scratch);
    if (baseName.data() != newBaseName.data()) {
      baseName = newBaseName;
      anyChanges = true;
    }

    for (StringRef &argName : argNames) {
      StringRef newArgName = toLowercaseWordAndAcronym(argName, scratch);
      if (argName.data() != newArgName.data()) {
        argName = newArgName;
        anyChanges = true;
      }
    }

    return anyChanges;
  };

  // If the result type matches the context, remove the context type from the
  // prefix of the name.
  bool resultTypeMatchesContext = returnsSelf || (resultType == contextType);
  if (resultTypeMatchesContext) {
    StringRef newBaseName = omitNeedlessWordsFromPrefix(baseName, contextType,
                                                        scratch);
    if (newBaseName != baseName) {
      baseName = newBaseName;
      anyChanges = true;
    }
  }

  // Treat zero-parameter methods and properties the same way.
  if (paramTypes.empty()) {
    if (resultTypeMatchesContext) {
      StringRef newBaseName = ::omitNeedlessWords(
                                baseName,
                                returnsSelf ? contextType : resultType,
                                NameRole::Property,
                                allPropertyNames,
                                scratch);
      if (newBaseName != baseName) {
        baseName = newBaseName;
        anyChanges = true;
      }
    }

    // Boolean properties should start with "is", unless their
    // first word already implies a Boolean result.
    if (resultType.isBoolean() && isProperty &&
        !nameIndicatesBooleanResult(baseName)) {
      SmallString<32> newName("is");
      camel_case::appendSentenceCase(newName, baseName);
      baseName = scratch.copyString(newName);
      anyChanges = true;
    }

    return lowercaseAcronymsForReturn();
  }

  // Omit needless words based on parameter types.
  for (unsigned i = 0, n = argNames.size(); i != n; ++i) {
    // If there is no corresponding parameter, there is nothing to
    // omit.
    if (i >= paramTypes.size()) continue;

    // Omit needless words based on the type of the parameter.
    NameRole role = i > 0 ? NameRole::SubsequentParameter
      : argNames[0].empty() ? NameRole::BaseName
      : NameRole::FirstParameter;

    // Omit needless words from the name.
    StringRef name = role == NameRole::BaseName ? baseName : argNames[i];
    StringRef newName = ::omitNeedlessWords(name, paramTypes[i], role,
                                            role == NameRole::BaseName 
                                              ? allPropertyNames
                                              : nullptr,
                                            scratch);

    // Did the name change?
    if (name != newName)
      anyChanges = true;

    // If the first parameter has a default argument, and there is a
    // preposition in the base name, split the base name at that preposition.
    if (role == NameRole::BaseName && argNames[0].empty() &&
        paramTypes[0].hasDefaultArgument()) {
      // Scan backwards for a preposition.
//.........这里部分代码省略.........