madsmtm’s gists

madsmtm / method_call_expression_pseudo_code.rs

Created December 1, 2023 05:23

Pseudo-code for Rust method-call expressions

	/// Pseudo-code for how [method-call expressions] work.
	///
	/// [method-call expressions]: https://doc.rust-lang.org/reference/expressions/method-call-expr.html
	fn lookup_method(mut T: Type, method_name: &str) -> Method {
	// The first step is to build a list of candidate receiver types.
	let mut candidate_receiver_types = vec![T];

	// Obtain these by repeatedly dereferencing the receiver expression's
	// type, adding each type encountered to the list,
	while let Some(U) = <T as Deref>::Target {

madsmtm / incomplete-facebook-schema.graphql

Last active September 5, 2019 14:50

A very incomplete description of Facebook's GraphQL schema (from 2017)

	schema {
	Query: Query
	Mutation: Mutation
	}

	type Query() {
	viewer: Viewer!
	entities_named: SearchableEntitiesQuery!
	}

madsmtm / postgresql-on-delete-performance.sql

Created April 25, 2019 13:20

PostgreSQL ON DELETE performance analysis - SET NULL vs. SET DEFAULT vs. CASCADE

--- Initialize tables
-DROP TABLE IF EXISTS table1, table2;
-CREATE TABLE table1 (col integer PRIMARY KEY);
-CREATE TABLE table2 (
-	col integer REFERENCES table1(col)
-	ON DELETE SET DEFAULT -- Experiment with different ON DELETE clauses
-);
--- Optionally create an index
-CREATE INDEX ON table2(col);

madsmtm / flask_automatic_jsonify.py

Created March 26, 2019 09:01

Automatic JSON serialization for Flask

	# Credit to:
	# - http://derrickgilland.com/posts/automatic-json-serialization-in-flask-views/
	# - https://blog.miguelgrinberg.com/post/customizing-the-flask-response-class
	from flask import Response, Flask, jsonify


	class AutoJSON(Response):
	@classmethod
	def force_type(cls, response, environ=None):
	"""Override to convert list & dict returns to json."""

madsmtm / messenger-colors.md

Created February 28, 2019 22:37

Facebook Messenger thread colors

    

Internal ID
Color
Label
Gradient


205488546921017
#ff7ca8
Candy
#ff8fb2 #a797ff #00e5ff

370940413392601
#1adb5b
Citrus
#ffd200 #6edf00 #00dfbb

164535220883264
#f01d6a
Berry
#005fff #9200ff #ff2e19

930060997172551
#ff9c19
Mango
#ffdc2d #ff9616 #ff4f00

417639218648241
#0edcde
Aqua
#19c9ff #00e6d2 #0ee6b7

196241301102133
#0084ff
Default Blue
N/A

1928399724138152
#44bec7
Teal Blue
N/A

174636906462322
#ffc300
Yellow
N/A



  

Internal ID	Color	Label	Gradient
205488546921017	`#ff7ca8`	Candy	`#ff8fb2` `#a797ff` `#00e5ff`
370940413392601	`#1adb5b`	Citrus	`#ffd200` `#6edf00` `#00dfbb`
164535220883264	`#f01d6a`	Berry	`#005fff` `#9200ff` `#ff2e19`
930060997172551	`#ff9c19`	Mango	`#ffdc2d` `#ff9616` `#ff4f00`
417639218648241	`#0edcde`	Aqua	`#19c9ff` `#00e6d2` `#0ee6b7`
196241301102133	`#0084ff`	Default Blue	N/A
1928399724138152	`#44bec7`	Teal Blue	N/A
174636906462322	`#ffc300`	Yellow	N/A

madsmtm / httpbin_sansio_get.py

Last active December 9, 2018 23:42

Rudimentary, Sans-IO `https://httpbin.org/get`, with a syncronous implementation on the side

	import json
	import h11
	from urllib.parse import urlencode


	class Get:
	"""Sans-IO implementation of `/get`"""

	def __init__(self, params):
	self.params = params

madsmtm / h11_sync_client.py

Last active December 9, 2018 23:41

`h11` example client as a class

	# This file is adapted from h11's example client
	# See https://github.com/python-hyper/h11/blob/master/examples/basic-client.py
	import socket
	import ssl
	import h11


	class Client:
	def __init__(self, host):
	self.conn = h11.Connection(our_role=h11.CLIENT)

madsmtm / graphene-pytest.py

Created December 9, 2018 13:41

Graphene pytest fixtures

	from pytest import fixture
	from graphene.test import Client

	@fixture(scope="session")
	def _schema():
	raise NotImplementedError(
	"You must implement this fixture yourself."
	"It should return an instance of `graphene.Schema`"
	)

madsmtm / eve-sqlalchemy-enums.py

Last active October 25, 2018 14:43

Minimal example of Eve-SQLAlchemy enumerators not working when using enumerated classes

	import enum

	from eve import Eve

	from sqlalchemy import Column, Integer, Enum
	from sqlalchemy.ext.declarative import declarative_base

	from eve_sqlalchemy import SQL
	from eve_sqlalchemy.config import DomainConfig, ResourceConfig
	from eve_sqlalchemy.validation import ValidatorSQL

madsmtm / Vagrantfile

Last active June 27, 2018 08:28

Conditional Vagrant Provisioner

	# -- mode: ruby --
	# vi: set ft=ruby :

	Vagrant.configure("2") do \|config\|

	# When you type 'up' the first time, it's always updated
	config.vm.provision 'update', type: 'shell', inline: "apt-get update;apt-get -yq upgrade"

	# When you provision the machine, you're asked whether you want to update it
	if ARGV.include?('up') or ARGV.include?('reload') or ARGV.include?('resume') and ARGV.include?('--provision') or ARGV.include?('provision')

Mads Marquart madsmtm