private List convert()

in tools/automatic_query_fixer/src/main/java/com/google/cloud/bigquery/utils/queryfixer/fixer/NoMatchingSignatureFixer.java [96:137]

34 lines of code
8 McCabe index (conditional complexity)


  private List<String> convert(
      List<NoMatchingSignatureError.ArgumentType> arguments,
      NoMatchingSignatureError.Signature signature) {
    List<String> argumentTemplates = new ArrayList<>();
    // A wildcard to match ANY type.
    String any = null;
    boolean atRequired = true;
    int argsIndex = 0;
    for (int i = 0; i < arguments.size(); i++) {
      NoMatchingSignatureError.ArgumentType argument = arguments.get(i);
      String sourceType = argument.getDataType();

      NoMatchingSignatureError.ArgumentType expectedArgument =
          getArgumentType(signature, atRequired, argsIndex);
      if (expectedArgument == null) {
        return null;
      }
      String expectedType = expectedArgument.getDataType();

      // ANY equals the data type that matches the first ANY.
      if (expectedType.equals(TypeCast.ANY)) {
        expectedType = any == null ? any = sourceType : any;
      }

      String argumentHolder;
      // place holder is 1-based index.
      if (expectedType.equals(sourceType)) {
        argumentHolder = String.format("{%s}", i + 1);
      } else {
        argumentHolder = TypeCast.getCastTemplate(expectedType, sourceType, i + 1);
      }
      argumentTemplates.add(argumentHolder);

      argsIndex++;
      // After matching all the required argument, it will start to match optional arguments.
      if (atRequired && argsIndex == signature.getRequired().size()) {
        atRequired = false;
        argsIndex = 0;
      }
    }
    return argumentTemplates;
  }