How do I override a method?

[ErikGrimes]

I've tried:

namespace: Polymer
package-name:  polymer_elements
externals:
 "Polymer.IronFormElementBehavior": "package:polymer_elements/iron_form_element_behavior.dart"
 "Polymer.Templatizer": "package:polymer_element/polymer_element.dart"
 "Templatizer": "package:polymer_element/polymer_element.dart"
components:
 - name :    "iron-validator-behavior"
   ref : "PolymerElements/iron-validator-behavior#2.0-preview"
   overrides:
     IronValidatorBehavior:
       validate: "bool validate(dynamic values);"
resolutions:
  "polymer": "2.0.0-rc.1"

[dam0vm3nt]

This will work :

namespace: Polymer
package-name:  polymer_elements
externals:
 "Polymer.IronFormElementBehavior": "package:polymer_elements/iron_form_element_behavior.dart"
 "Polymer.Templatizer": "package:polymer_element/polymer_element.dart"
 "Templatizer": "package:polymer_element/polymer_element.dart"
components:
 - name :    "iron-validator-behavior"
   ref : "PolymerElements/iron-validator-behavior#2.0-preview"
   overrides:
     Polymer.IronValidatorBehavior:
       validate: 
         - "  extern bool validate(dynamic values);"
resolutions:
  "polymer": "2.0.0-rc.1"

Please note that you have to use extern keyword. And this will work only if you don't change the method name. To enable more generic mapping we should wait for extensions method feature to be added to dart (dart-lang/sdk#24779) please vote it!

[dam0vm3nt]

BTW : at the moment there is a polymer issue that make it impossible to use native old style (v.1) behavior with 2.0 component. see here for info

[ErikGrimes]

What sort of problems does that cause for polymer-dart users? I read the associated issues, but I'm not sure I understand the implications.

…

On Tue, Mar 7, 2017 at 2:09 PM Vittorio Ballestra ***@***.***> wrote: BTW : at the moment there is a polymer issue that make it impossible to use native old style (v.1) behavior with 2.0 component. see here <Polymer/polymer#4378> for info — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABdljjeDulh5KDuVs60_PAWtOxJkz4hPks5rjblwgaJpZM4MV5Bg> .

[dam0vm3nt]

Actually it turns out to be a polymer-redux problem. When mixin a behavior only the properties of the latest behavior that was mixed will be used by redux.

If you don't use redux there should be no problems then, but I hope polymer-redux people will fix it.

[dam0vm3nt]

type : extern -> external