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Sam Goldman samwgoldman

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samwgoldman / example.js
Last active April 3, 2021 22:20
Pure, stateless, type-checked React components with Immutable.js and Flow
/* @flow */
var React = require("react")
var Immutable = require("immutable")
// In order to use any type as props, including Immutable objects, we
// wrap our prop type as the sole "data" key passed as props.
type Component<P> = ReactClass<{},{ data: P },{}>
type Element = ReactElement<any, any, any>
@samwgoldman
samwgoldman / gist:1777846
Created February 9, 2012 06:29
Helpful macros for rspec controller specs
module RackTestHelpers
extend ActiveSupport::Concern
module ClassMethods
def self.define_action(action)
define_method action do |*args, &block|
options = args.extract_options!
options[:http_method] = action
options[:controller_method] = args[0]
args[0] = [action.to_s.upcase, "#" + options[:controller_method].to_s].join(" ")
@samwgoldman
samwgoldman / a.diff
Created September 30, 2018 17:25
index 3ef907960..5de2e0e85 100644
--- a/runtime/compare.c
+++ b/runtime/compare.c
@@ -133,7 +133,8 @@ static intnat do_compare_val(struct compare_stack* stk,
return Long_val(v1) - Long_val(v2);
/* Subtraction above cannot overflow and cannot result in UNORDERED */
#ifndef NO_NAKED_POINTERS
- if (Is_in_value_area(v2)) {
+ if (!Is_in_value_area(v2))
+ return LESS;
@samwgoldman
samwgoldman / Maybe.h
Created March 12, 2014 22:42
Maybe monad-alike in Objective-C using parts of ReactiveCocoa and libextobjc concrete protocols
#import <Foundation/Foundation.h>
#import <libextobjc/EXTConcreteProtocol.h>
@protocol Maybe <NSObject>
- (id<Maybe>)map:(id (^)(id value))block;
- (id<Maybe>)flattenMap:(id<Maybe> (^)(id value))block;
- (id<Maybe>)orElse:(id)defaultValue;
- (id)getOrElse:(id)defaultValue;
@samwgoldman
samwgoldman / gist:1fcceea36206e1544414
Last active February 18, 2017 16:07
Maybe type in JS/Flow
/* @flow */
type Maybe<T,U> = (pattern: {
some(x: T): U;
none(): U;
}) => U;
function map<A,B,C>(maybe: Maybe<A,C>, f: (a: A) => B): Maybe<B,C> {
return function(pattern) {
return maybe({
@samwgoldman
samwgoldman / jsbin.ucanam.html
Created November 19, 2013 21:01
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-2.0.2.js"></script>
<script src="http://builds.emberjs.com/handlebars-1.0.0.js"></script>
<script src="http://builds.emberjs.com/ember-latest.js"></script>
</head>
<body>
<script type="text/x-handlebars" data-template-name="application">
{{view Ember.Select content=options value=computed}}
@samwgoldman
samwgoldman / gist:6557156
Created September 13, 2013 23:01
class Foo
def self.bar
end
def bar
end
end
set_trace_func proc { |event, file, line, id, binding, classname|
if event == "call"
@samwgoldman
samwgoldman / gist:6458771
Created September 6, 2013 02:20
require "active_support/all"
now = Date.current
# => Thu, 05 Sep 2013
now - 2.months - 5.days + 2.months + 5.days == now
# => false
now - 2.months - 5.days + 5.days + 2.months == now
# => true
@samwgoldman
samwgoldman / gist:5789657
Last active December 18, 2015 13:28
require "active_record" # 4.0.0.rc2
require "minitest/autorun"
class Migrate < ActiveRecord::Migration
self.verbose = false
def up
create_table(:profiles)
create_table(:networks)
create_table(:memberships) do |t|
@samwgoldman
samwgoldman / ar_relation_scope.rb
Created May 24, 2013 14:10
require "active_record"
require "rspec/autorun"
class Migrate < ActiveRecord::Migration
self.verbose = false
def up
create_table(:projects)
create_table(:tasks) do |t|
t.references :project, null: false