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Bug Fixes

  • Update incremental build cache information properly on IDE rebuilds (#3789, @kritzcreek)

    Fixes a bug where triggering a rebuild via the IDE would not update the output/cache-db.json file, which in certain situations could lead to unnecessary rebuilds, as well as modules not being rebuilt when they should have been.

  • Don't include compiler-internal declarations in IDE completions (#3850, @kritzcreek)

hdgarrood / Main.purs
Created May 20, 2020
Required and optional fields example
View Main.purs
module Main where
import Prelude
import Effect (Effect)
import Data.Foldable (fold)
import TryPureScript (h1, h2, p, text, list, indent, link, render, code)
import Prim.Row (class Union, class Nub)
import Type.Row (type (+))
import Record as Record
hdgarrood / Main.html
Created May 8, 2020
polykinds HTML docs example
View Main.html
<html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1"><title>PureScript: Main</title><link href="|Roboto:300,400,400i,700,700i" type="text/css" rel="stylesheet"><style type="text/css">/*! normalize.css v3.0.2 | MIT License | */
* 1. Set default font family to sans-serif.
* 2. Prevent iOS text size adjust after orientation change, without disabling
* user zoom.
html {
hdgarrood / Main.purs
Last active Apr 4, 2020
Ring laws are too weak
View Main.purs
module Main where
import Prelude
import Control.Monad.Eff (Eff)
import Data.Foldable (fold)
import TryPureScript (DOM, h1, p, text, render)
main :: Eff (dom :: DOM) Unit
main =
View load-from-cwd-or-npm@3.0.2.js
'use strict';
const {dirname, isAbsolute, join, resolve} = require('path');
const {existsSync} = require('fs');
const {PassThrough} = require('stream');
const inspectWithKind = require('inspect-with-kind');
const npmCliDir = require('npm-cli-dir');
const optional = require('optional');
const resolveFromNpm = require('resolve-from-npm');
View DataTypes.purs
module DataTypes where
data Foo = Foo
mkFoo = Foo
data Bar = Bar
data Baz = Baz1 | Baz2

Why there can be no EuclideanRing b => EuclideanRing (a -> b) instance

One of the defining features of a EuclideanRing is that you can divide any pair of elements, as long as the divisor is nonzero. Specifically, if you have a euclidean ring R, with x, y in R, and y /= zero, we need to have x = (x / y) * y + (x `mod` y).

We do have a Ring b => Ring (a -> b) instance, where multiplication is defined as follows:

hdgarrood / calc.js
Last active Aug 2, 2017
perf impact of reordering declaration ref list
View calc.js
var master = [15.985, 15.774, 16.664, 16.111, 15.889, 15.603, 15.598, 15.690, 15.602, 16.159];
var reordered = [15.831, 16.182, 16.519, 15.383, 15.936, 15.888, 15.645, 15.775, 15.749, 16.076];
function mean(arr) {
return arr.reduce(function(x,y) { return x + y; }) / arr.length;
function variance(arr) {
var m = mean(arr);
hdgarrood /
Last active May 16, 2017
An extremely naive implementation of the simplex algorithm.
from collections import namedtuple
import numpy as np
# This is an implementation of the version of the simplex algorithm we are
# expected to execute by hand in LPMS. There is just one important difference:
# because python and numpy use zero-based indexing, this does too. So for
# example you need to subtract 1 from each element of your basic and nonbasic
# sets.
LPState = namedtuple("LPState", ["basic", "nonbasic"])
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