Justin Lin JustinSDK

👨‍👩‍👧

Working from home

"It's all a big game of construction — some with a brush, some with a shovel, some choose a pen." - Jackson Pollock …and some choose code.

JustinSDK / simple_type_checking.py

Last active August 1, 2018 01:32

simple_type_checking.py

	import sys, re, ast

	type_hints_re = re.compile(r'([a-zA-Z]+):\s*([a-zA-Z]+)')

	code = '''
	"""x: int"""
	x = 2
	'''

	node = ast.parse(code)

JustinSDK / modify_ast.py

Created August 1, 2018 01:51

modify_ast.py

	import ast

	code = '''
	def add(n1, n2):
	return n1 + n2
	print(add(3, 4))
	'''

	class CrazyTransformer(ast.NodeTransformer):
	def visit_BinOp(self, node):

JustinSDK / async_demo.py

Last active August 14, 2018 06:14

async_demo.py

	from concurrent.futures import ThreadPoolExecutor
	import time
	import random

	def doAsync(task):
	g = task()
	future = next(g)
	while True:
	try:
	future = g.send(future.result())

JustinSDK / download.py

Created August 14, 2018 07:54

download.py

	from urllib.request import urlopen

	def download(url, file):
	with urlopen(url) as url, open(file, 'wb') as f:
	f.write(url.read())

	urls = [
	'http://openhome.cc/Gossip/Encoding/',
	'http://openhome.cc/Gossip/Scala/',
	'http://openhome.cc/Gossip/JavaScript/',

JustinSDK / bytecode_abc_1.py

Last active August 25, 2018 08:02

Byte Code ABC - 1

JustinSDK / bytecode_abc_2.py

Last active August 25, 2018 08:01

Byte Code ABC - 2

	class Num:
	def __init__(self, value):
	self.value = value

	def bc_instructn(self, bytecodes):
	bytecodes.append(f'push {self.value}')
	return bytecodes

	class Add:
	def __init__(self, left, right):

JustinSDK / array.wat

Last active September 20, 2018 00:09

Wasm Array

	;; 說明：https://openhome.cc/Gossip/WebAssembly/Array.html

	(module
	(import "env" "log" (func $log (param i32)))
	(memory 1)
	;; 建立新陣列
	(func $arr (param $len i32) (result i32)
	(local $offset i32) ;; 記錄陣列偏移量
	(set_local $offset (i32.load (i32.const 0))) ;; 取得偏移量

JustinSDK / first_three_js.html

Last active March 1, 2019 10:34

First Three.js

	<html>
	<body>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/96/three.min.js"></script>
	<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>

	<script>
	// 場景
	const scene = new THREE.Scene();

JustinSDK / es6-iterator-promise.js

Created May 7, 2019 04:31

es6-iterator-promise

JustinSDK / es7-iterator-async-await.js

Created May 7, 2019 05:43

es7-iterator-async-await.js