Consider helpers for static type reflection

[matanlurey]

Within Angular today I'm working on a class called StaticTypes:

/// An abstraction around comparing types statically (at compile-time).
abstract class StaticTypes {
  /// Creates a [MetadataTypes] that uses runtime reflection.
  const factory StaticTypes.withMirrors({
    bool checkSubTypes,
  }) = _MirrorsStaticTypes;

  /// Creates a [MetadataTypes] by retrieving exact types from [resolver].
  ///
  /// With _analysis summaries_ this should be a relatively cheap operation but
  /// the resulting [MetadataTypes] class should still be cached whenever
  /// possible.
  ///
  /// Throws an [ArgumentError] if [resolver] was not able to lookup type
  /// information for Angular's metadata classes - this is usually a sign that
  /// dependencies or imports are missing.
  factory StaticTypes.fromResolver(
    Resolver resolver, {
    bool checkSubTypes,
  }) = ...
}

This could be useful to all users that are writing source-code generation/macros.

Would be happy to port/commonify this once complete. It could replace the hackier 'matchAnnotation' that is used within the src/ folder today.

[matanlurey]

Ping @kevmoo @natebosch @jakemac53 - is this desirable?

[jakemac53]

Could you give a bit more information about this class, for instance what instance methods do your forsee? Is it used to check if an analyzer `DartObject` is of a certain real `Type`?

…

On Tue, Mar 7, 2017 at 9:43 PM Matan Lurey ***@***.***> wrote: Ping @kevmoo <https://github.com/kevmoo> @natebosch <https://github.com/natebosch> @jakemac53 <https://github.com/jakemac53> - is this desirable? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#136 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AA8HWTb2TFXcsyzOUzL4UZzXmU3qvWE9ks5rjj_lgaJpZM4MCdxx> .

[matanlurey]

Yep! Incidentally I'm in SEA today so I can show it off On Wed, Mar 8, 2017, 6:45 AM Jacob MacDonald <notifications@github.com> wrote:

…

Could you give a bit more information about this class, for instance what instance methods do your forsee? Is it used to check if an analyzer `DartObject` is of a certain real `Type`? On Tue, Mar 7, 2017 at 9:43 PM Matan Lurey ***@***.***> wrote: > Ping @kevmoo <https://github.com/kevmoo> @natebosch > <https://github.com/natebosch> @jakemac53 <https://github.com/jakemac53> > - is this desirable? > > — > You are receiving this because you were mentioned. > > > Reply to this email directly, view it on GitHub > < #136 (comment) >, > or mute the thread > < https://github.com/notifications/unsubscribe-auth/AA8HWTb2TFXcsyzOUzL4UZzXmU3qvWE9ks5rjj_lgaJpZM4MCdxx > > . > — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#136 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAKQ7k-Ez0u24xZXVUYkivj-DcfqaW2wks5rjr8DgaJpZM4MCdxx> .