escamoteur

Enable functions to store data between calls / know from where they were called

Hi, this title might sound quite strange but during the development of functional_listeners and get_it_mixin I found that the reactive nature of flutter creates some new challenges. Specifically I mean that build functions are getting called on any data change which makes patterns that I used in the past suddenly difficult. Let's take the following class as an example:

class Model {
  ValueNotifier<String> _notifier;

escamoteur

import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:vector_math/vector_math_64.dart' show radians;

/// Used to display Antennas on the Map as well as
/// the compass in aiming mode
class AntennaWidget extends StatelessWidget {
  const AntennaWidget({
    Key key,

escamoteur

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:io';

import 'package:meta/meta.dart';

import 'assertions.dart';

escamoteur

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:collection';
import 'dart:developer';

import 'package:meta/meta.dart';

import 'assertions.dart';

escamoteur

{
  "breadcrumbs.enabled": true,
  "editor.fontLigatures": true,
  "editor.fontFamily": "Dank Mono",
  "editor.fontSize": 18,
  "workbench.iconTheme": "eq-material-theme-icons",
  "editor.tokenColorCustomizations": {
    "textMateRules": [
      {
        "scope": [

escamoteur

Proposal for the coming get_it mixin for Widgets as I was asked by users to help binding the UI to the objects in GetIt. Highly inspired by @remi_rousselet 's Hooks and provider in this aspect. For people using Hooks I plan a similar GetItHook. Please tell me what you think

  /// all the following functions can be called inside the build function but also
  /// in e.g. in `initState` of a `StatefulWidget`.
  /// The mixin takes care that everything is correctly disposed.

  /// retrieves or creates an instance of a registered type [T] depending on the registration

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import 'dart:async';

class A<T>{
  A(this.val,this.dispose);
  T val;
  FutureOr Function(T) dispose;
}

List<A> allA = <A>[];

escamoteur

open System
open MailKit.Net.Imap
open MailKit
open MimeKit

type FolderInfo = {
    name : string
    size : uint64
    }

escamoteur

    let withdrawWithAudit = withdraw |> auditAs "withdraw" Auditing.fileSystem
    let depositWithAudit = deposit |> auditAs "deposit" Auditing.fileSystem

    while true do
        let action =
            Console.WriteLine()
            printfn "Current balance is £%M" account.Balance
            Console.Write "(d)eposit, (w)ithdraw or e(x)it: "
            Console.ReadLine()

escamoteur

    // return Column(
    //       mainAxisSize: MainAxisSize.min,
    //       children: <Widget>[
    //         Container(
    //           height: 50.0,
    //           color: Colors.red,
    //         ),
    //         Row(
    //           crossAxisAlignment: CrossAxisAlignment.start,
    //           children: <Widget>[