sjmyuan’s gists

sjmyuan / type-bounds.scala

Created April 19, 2017 12:50 — forked from retronym/type-bounds.scala

Tour of Scala Type Bounds

	class A
	class A2 extends A
	class B

	trait M[X]

	//
	// Upper Type Bound
	//
	def upperTypeBound[AA <: A](x: AA): A = x

sjmyuan / Alacarte.scala

Created April 19, 2017 12:55 — forked from YoEight/Alacarte.scala

Scala DataType à la carte

	object Alacarte {
	trait Functor[F[_]]{
	def map[A, B](fa: F[A])(f: A => B): F[B]
	}

	trait Eval[F[_]] {
	def F: Functor[F]

	def evalAlgebra(fa: F[Int]): Int
	}

sjmyuan / ubuntu-cloudformation.json

Created May 13, 2017 07:32 — forked from kixorz/ubuntu-cloudformation.json

Ubuntu CloudFormation Tools installation snippet. Modified version of http://krunchtime.it/setting-up-bootstrapping-using-cfn-init-for-aws-ubuntu-ec2-instance

	"UserData": {
	"Fn::Base64": { "Fn::Join":["", [
	"#!/bin/bash -ex\n",
	"apt-get update\n",
	"apt-get -y install python-setuptools\n",
	"mkdir aws-cfn-bootstrap-latest\n",
	"curl https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz \| tar xz -C aws-cfn-bootstrap-latest --strip-components 1\n",
	"easy_install aws-cfn-bootstrap-latest\n",
	"/usr/local/bin/cfn-init --stack ", { "Ref":"AWS::StackName" }, " --resource WebServer", " --region ", { "Ref": "AWS::Region" }, "\n",
	"\n",

sjmyuan / Coffeescript ctags

Created August 2, 2017 03:07 — forked from mads-hartmann/Coffeescript ctags

ctags definitions for Coffeescript. Very basic for now. "> ctags -e -R source_folder" and then M-. to jump to the definition of any function or variable (if you're using emacs)

	--langdef=coffee
	--langmap=coffee:.coffee
	--regex-coffee=/^[ \t]([A-Za-z.]+)[ \t]+=.->.*$/\1/f,function/
	--regex-coffee=/^[ \t]([A-Za-z.]+)[ \t]+=[^->\n]$/\1/v,variable/

sjmyuan / module-pattern.scala

Created June 20, 2020 01:34

	trait DataSourceComponent {
	val source: DataSource
	trait DataSource {
	def getData: List[Int]
	}
	}

	trait HttpRequestComponent {
	val http: HttpRequest
	trait HttpRequest {

sjmyuan / reader-pattern.scala

Created July 5, 2020 03:35

	case class Reader[A, B](run: A => B) {
	def map[C](f: B => C): Reader[A, C] = {
	val runN: A => C = (x: A) => f(run(x))
	Reader(runN)
	}

	def flatMap[C](f: B => Reader[A, C]): Reader[A, C] = {
	val runN: A => C = (x: A) => f(run(x)).run(x)
	Reader(runN)
	}

sjmyuan / reader-pattern-all-in-context.scala

Created July 5, 2020 03:37

 case class Reader[A, B](run: A => B) {
   def map[C](f: B => C): Reader[A, C] = {
     val runN: A => C = (x: A) => f(run(x))
     Reader(runN)
   }
   def flatMap[C](f: B => Reader[A, C]): Reader[A, C] = {
     val runN: A => C = (x: A) => f(run(x)).run(x)
     Reader(runN)
   }

sjmyuan / reader-pattern-basic-in-context.scala

Created July 5, 2020 03:42

 case class Reader[A, B](run: A => B) {
   def map[C](f: B => C): Reader[A, C] = {
     val runN: A => C = (x: A) => f(run(x))
     Reader(runN)
   }
   def flatMap[C](f: B => Reader[A, C]): Reader[A, C] = {
     val runN: A => C = (x: A) => f(run(x)).run(x)
     Reader(runN)
   }

sjmyuan / 8xflow-element.xml

Created April 21, 2021 13:14

<mxlibrary>[{"xml":"jVLBboMwDP2aHDdBWFPtWOjoaad9QVYCiWRIFkKh+/o5JIWxqdqQIsXv+b3Y2CQr2ulkuZGvuhJAsheSFVZrF27tVAgAQhNVkexIKE3wEFreYdOZTQy3onP/EdAguHAYREAIZbw1JMsBDXID/CwWqPEQRjP1bvH2B1JrLIMmtTfx7uxj8J3l3CoOa/hT1hveoax3V9jqvN9Drz4RPWBC+vTIGNub6bfVrXAIYBkst88gHAq8wXTzKLV66Crh/1SK9CiVE28mtDLixBCTroVI1wqg0KDtrM1YzXdsj/hFWKfOHA6gmg45p01s5Ft2OX9LDV4jprsjnaE4z5PQrXD2iimjqpyMGbsw9kQK1cgoe44Y70PcLNJ1QfASd+QWrrs4c5tV/QI=","w":150,"h":90,"aspect":"fixed","title":"Place"},{"xml":"jVLBboMwDP2aHDeFsKbasdDR0077gqwEEsmQLIRC9/UzJIWxqdqQItnv5b3Y2CTNm/HkhFWvppRA0heS5s4YH6JmzCUAYVSXJD0Sxigewoo7bDKz1AonW/8fAQuCi4BeBoQwLhpL0gzQIEMnf12geoIwm6l3h9EfSGWwDEYrcQ7u/KOfOsuE0wLW9Kess6JFWeevsNVNfg+d/kT0gBeSp0fO+d6Ov61uhUMAi2C5fQbhUOANZptHmTN9W8rpTyVID0p7+WZDKwNODDHlG4h0pQFyA8bN2pRXYsf3iF+k8/os4AC6bpHzxsZGvt0u5m+pYdLI8e5IZyjO8yRNI73DVumgS6/ijV0YO1VS1yrKniMmupDXi3RdEAzijtzSdRdnbrOqXw==","w":150,"h":90,"aspect":"fixed","title":"Party-party"},{"xml":"jVLBboMwDP2aHDeFsKbasdC1p532BVkJJJIhWQiF7utnSICxqdqQItnv5b3Y2CTN6+HshFWvppBA0heS5s4YH6J6yCUAYVQX

sjmyuan / 8xflow-arch-drawio.xml

Created April 30, 2021 10:00

<mxlibrary>[{"xml":"jZHBbsMgDIafxvcEtig5JjTtaac+ASpeQHJKROmSvn0JcRftUGkHJPP//hC/DVKNyynoyX55gwSyB6mC93GrxkUhEYjCGZAHEKJIB8TxjVtmt5h0wGv8DyA24EfTHTcF+g/oamha6D+hbqEtoa+gUVAfdiVDt/gghoK/Xw2ub5Ygu9m6iOdJX1Z3TtmSZuNIbH87IuXJh8xKY6qqSZ0dfwVDxOVtnCxxlhP6EWN4pJbZmWi5gyMXFt1gGatY07ftPvyi+3BSwfN5Xfc9ZO/Pmp4=","w":120,"h":60,"aspect":"fixed"},{"xml":"jVFBbsMgEHzN3G1IHXw0jpNTT32BVbYBCQeLkNj5fQHTRj1EqgTS7szOws6C99N68uOs350iCz6A9965sEXT2pO1YJVR4AcwVsULdnzB1pmt5tHTJfxHwDbBfbQ32hAMLToG0WB4Q3tMZ2jQ9hCHhIgOXZ36DTtIAdFmtoGMwR6SQ8ocyCTMva/hYUtv724XRenpGlwu2gT6mMfPxC7RgojpMNlCfxlre2edz1pOe6F2IuLlx+QDrS+nzlAZ+URuouAfsWQxKuhSUZypNJmzLrKmYON1y8+/0qeHMSg2/qTPdWXuzza/AQ==","w":120,"h":60,"aspect":"fixed"},{"xml":"jVHNjsIgEH6auSNUrEfLVk+e9gnQzgrJVBpEW99+KZ1dsweTPZB8fD8DMwPK9NMh2sEdQ4cEqgVlYghpQf1kkAik8B2oD5BS5ANy/0ZdFVUMNuI1/Scgl8DD0h0XBto11GtoNLQVNA1sM9BQ76AWM9ga2O2h3cxSXbEnm0uZW3oSl4nhfu1wfmUFqhmdT/g52POsjrnbzLnUE8tfnsgECrFkVXWyWqvM8+cwJpzeNlgo7u6AoccUn9ky+i45dvAQhEN/cRzTzNnbcr/8Rl/jyoAn9nN9baZofxb3DQ==","w":120,"h":60,"aspect":"fix