types.compose is useful, but cant overwrite

[homura]

I was trying to overwrite something like this

const Parent = types.model({
  name: '',
  alias: '',
  get displayName() { return this.alias || this.name; }
})

const child = types.compose(Parent, {
  type: '',
  get displayName() { return this.alias || this.name + type; }
})

Cannot redefine property: displayName

I has changed mobx-state-tree(0.8.2) source to

descriptor.configurable = true; // line of 100

and it works

How can i resolve this error? Or configurable will be true in next version?

Sorry for my poor English.

[mweststrate]

This should be possible indeed. Feel free to open a PR. Can you include a test? Op ma 26 jun. 2017 om 13:32 schreef homura <[email protected]>:

…

I was trying to overwrite something like this const Parent = types.model({ name: '', alias: '', get displayName() { return this.alias || this.name; } }) const child = types.compose(Parent, { type: '', get displayName() { return this.alias || this.name + type; } }) Cannot redefine property: displayName I has changed mobx-state-tree(0.8.2) source to descriptor.configurable = true; // line of 100 and it works How can i resolve this error? Or configurable will be true in next version? Sorry for my poor English. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#209>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABvGhOSlDwt9Jmu9UNXqB__D8_8OvThhks5sH5bbgaJpZM4OFMKO> .