Dart VM native API - Dart_New

[Michael Francis]

Not directly related to Core Development but I figured my question would get to the right people here.

I'm embedding the DartVM into an application. In `dart_api.h` there is a method Dart_New which calls a constructor.

/**

 * Invokes a constructor, creating a new object.

 *

 * This function allows hidden constructors (constructors with leading

 * underscores) to be called.

 *

 * \param type Type of object to be constructed.

 * \param constructor_name The name of the constructor to invoke.  Use

 *   Dart_Null() or Dart_EmptyString() to invoke the unnamed constructor.

 *   This name should not include the name of the class.

 * \param number_of_arguments Size of the arguments array.

 * \param arguments An array of arguments to the constructor.

 *

 * \return If the constructor is called and completes successfully,

 *   then the new object. If an error occurs during execution, then an

 *   error handle is returned.

 */

DART_EXPORT Dart_Handle Dart_New(Dart_Handle type,

                                 Dart_Handle constructor_name,

                                 int number_of_arguments,

                                 Dart_Handle* arguments);

How are named parameters handled in this scenario? Are they not supported? Same question for Optional positional parameters.

[Michael Francis]

That's what I am currently doing. Was just seeing if there was a way to remove the semi-duplicate code.

On Wed, Jun 28, 2017 at 12:57 PM Matan Lurey <ma...@lurey.org> wrote:

I'm not on the Dart VM team, but I believe they aren't supported. You can workaround this behavior by using an intermediate function:

class MyClass {

  MyClass({String named});

  factory MyClass._intermediate(String named) => new MyClass(named: named);

}

You could then invoke "_intermediate" instead. Hope that helps (or someone more knowledgable chimes in)

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[Matan Lurey]

I'm not on the Dart VM team, but I believe they aren't supported. You can workaround this behavior by using an intermediate function:

class MyClass {

  MyClass({String named});

  factory MyClass._intermediate(String named) => new MyClass(named: named);

}

You could then invoke "_intermediate" instead. Hope that helps (or someone more knowledgable chimes in)

On Wed, Jun 28, 2017 at 9:08 AM Michael Francis <mfran...@gmail.com> wrote:

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