messageFromMethodInvocation method

Message? messageFromMethodInvocation(MethodInvocation node)

Create a MainMessage from node using the name and parameters of the last function/method declaration we encountered and the parameters to the Intl.message call.

Implementation

Message? messageFromMethodInvocation(MethodInvocation node) {
  var message;
  switch (node.methodName.name) {
    case "gender":
      message = new Gender();
      break;
    case "plural":
      message = new Plural();
      break;
    case "select":
      message = new Select();
      break;
    default:
      throw new IntlMessageExtractionException(
          "Invalid plural/gender/select message ${node.methodName.name} "
          "in $node");
  }
  message.parent = parent;

  var arguments = message.argumentsOfInterestFor(node);
  arguments.forEach((key, value) {
    try {
      var interpolation = new InterpolationVisitor(message, extraction);
      value.accept(interpolation);
      // Might be null due to previous errors.
      // Continue collecting errors, but don't build message.
      if (message != null) {
        message[key] = interpolation.pieces;
      }
    } on IntlMessageExtractionException catch (e) {
      message = null;
      var err = new StringBuffer()
        ..writeAll(["Error ", e, "\nProcessing <", node, ">"])
        ..write(extraction._reportErrorLocation(node));
      var errString = err.toString();
      extraction.onMessage(errString);
      extraction.warnings.add(errString);
    }
  });

  var mainArg = node.argumentList.arguments
      .firstWhere((each) => each is! NamedExpression);
  if (mainArg is SimpleStringLiteral) {
    message?.mainArgument = mainArg.toString();
  } else if (mainArg is SimpleIdentifier) {
    message?.mainArgument = mainArg.name;
  } else {
    var err = new StringBuffer()
      ..write("Error (Invalid argument to plural/gender/select, "
          "must be simple variable reference) "
          "\nProcessing <$node>")
      ..write(extraction._reportErrorLocation(node));
    var errString = err.toString();
    extraction.onMessage(errString);
    extraction.warnings.add(errString);
  }
  return message;
}