How to use

createLeft

method

in

org.eclipse.lsp4j.jsonrpc.json.adapters.EitherTypeAdapter

protected Either<L, R> create(JsonToken nextToken, JsonReader in) throws IOException {
  boolean matchesLeft = left.isAssignable(nextToken);
  boolean matchesRight = right.isAssignable(nextToken);
  if (matchesLeft && matchesRight) {
    if (leftChecker != null || rightChecker != null) {
      JsonElement element = new JsonParser().parse(in);
      if (leftChecker != null && leftChecker.test(element))
        // Parse the left alternative from the JSON element tree
        return createLeft(left.read(element));
      if (rightChecker != null && rightChecker.test(element))
        // Parse the right alternative from the JSON element tree
        return createRight(right.read(element));
    }
    throw new JsonParseException("Ambiguous Either type: token " + nextToken + " matches both alternatives.");
  } else if (matchesLeft) {
    // Parse the left alternative from the JSON stream
    return createLeft(left.read(in));
  } else if (matchesRight) {
    // Parse the right alternative from the JSON stream
    return createRight(right.read(in));
  } else {
    throw new JsonParseException("Unexpected token " + nextToken + ": expected " + left + " | " + right + " tokens.");
  }
}

protected Either<L, R> create(JsonToken nextToken, JsonReader in) throws IOException {
  boolean matchesLeft = left.isAssignable(nextToken);
  boolean matchesRight = right.isAssignable(nextToken);
  if (matchesLeft && matchesRight) {
    if (leftChecker != null || rightChecker != null) {
      JsonElement element = new JsonParser().parse(in);
      if (leftChecker != null && leftChecker.test(element))
        // Parse the left alternative from the JSON element tree
        return createLeft(left.read(element));
      if (rightChecker != null && rightChecker.test(element))
        // Parse the right alternative from the JSON element tree
        return createRight(right.read(element));
    }
    throw new JsonParseException("Ambiguous Either type: token " + nextToken + " matches both alternatives.");
  } else if (matchesLeft) {
    // Parse the left alternative from the JSON stream
    return createLeft(left.read(in));
  } else if (matchesRight) {
    // Parse the right alternative from the JSON stream
    return createRight(right.read(in));
  } else {
    throw new JsonParseException("Unexpected token " + nextToken + ": expected " + left + " | " + right + " tokens.");
  }
}