knaeckeKami

import 'dart:math';
import 'dart:ui';

import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';

void main() {
  runApp(const MyApp());
}

knaeckeKami

import 'package:flutter/material.dart';

import 'dart:math' as math;
import 'dart:ui' as ui;

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

knaeckeKami

extension Let<T extends Object> on T? {
  
  S? let<S>(S Function(T) f) {
    final self = this;
    
    if(self == null){
      return null;
    }
    return f(self);
    

knaeckeKami

BRANCH=refs/remotes/origin/main
LAST_REV=$(git rev-parse --verify $BRANCH)
LAST_TAG=$(git describe --tag --abbrev=0 $LAST_REV)
COMMIT_COUNT=$(git rev-list --count $BRANCH $LAST_TAG..)

if [ $COMMIT_COUNT = 0 ]; then
    echo "Nothing to build! No commits since $LAST_TAG on $BRANCH."
    exit 0;

knaeckeKami

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

knaeckeKami

void main() {
  asyncInit();
}

Future<void> asyncInit() async {
  await Future.wait([
    for (var i = 0; i < 10; i++) ...[
      asyncParent(),
    ],
  ]);

knaeckeKami

Info: Compiling with sound null safety.
../../runtime/vm/compiler/backend/flow_graph_compiler.cc: 737: error: expected: !is_optimizing() || !instr->HasUnmatchedInputRepresentations()
version=3.0.0-75.0.dev (dev) (Thu Dec 29 16:50:26 2022 -0800) on "macos_arm64"
pid=72359, thread=-1, isolate_group=isolate(0x13902c800), isolate=(nil)(0x0)
os=macos, arch=arm64, comp=no, sim=no
isolate_instructions=0, vm_instructions=0
  pc 0x0000000104819440 fp 0x000000016b738e20 Cr_z_armv8_crc32_little+0x113f54
  pc 0x00000001046f3168 fp 0x000000016b738e40 std::__2::align(unsigned long, unsigned long, void*&, unsigned long&)+0x7344
  pc 0x000000010495dccc fp 0x000000016b739000 std::__2::__call_once(unsigned long volatile&, void*, void (*)(void*))+0x6eab0
  pc 0x000000010495d378 fp 0x000000016b739030 std::__2::__call_once(unsigned long volatile&, void*, void (*)(void*))+0x6e15c

knaeckeKami

Migrating Ferry to Isolates

Problem

Parsing large graphql responses and normalizing them is a potentially expensive operation that can lead to skipped frames.

Users complained about this in issues like this: gql-dart/ferry#394 (comment)

Goal

knaeckeKami

import 'package:flutter/material.dart';
import 'dart:math';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(SizedBox(height: 200, child: HalfCircleWidget(values: [1,2,3])));
}

knaeckeKami

import 'package:flutter/material.dart';
import 'dart:math';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MaterialApp(home: Scaffold(body :CircleClipperSlider(child: Container(
    height: 200,
    width: 200,
    color: Colors.orange)))));