Andrés Correa Casablanca castarco

castarco / deferredTemplateLiterals.ts

Created May 20, 2020 21:17

	/**
	* This approach has many limitations:
	* - it does not accept variable names with numbers or other symbols (relatively easy to fix)
	* - it does not accept arbitrary expressions (quite difficult to fix)
	*/
	function deferredTemplateLiteral(template: string, env: { [key: string]: string \| undefined }): string {
	const varsMatcher = /\${([a-zA-Z_]+)}/
	const globalVarsmatcher = /\${[a-zA-Z_]+}/g

	const varMatches: string[] = template.match(globalVarsmatcher) ?? []

castarco / rust_games_development.md

Last active August 14, 2020 18:06

Rust Game Engines

castarco / composableNominalTypes.ts

Last active March 11, 2021 12:59

Composable Nominal Types for Typescript

	export type ChainNominal<BaseType, Tag extends string> = BaseType extends {
	__type: infer Tag0
	__baseType: infer BaseType0
	}
	? Tag0 extends [...infer NestedTags]
	? BaseType0 & { __type: [Tag, ...NestedTags]; __baseType: BaseType0 }
	: never
	: BaseType & {
	__type: [Tag] // Using an array allow us to use multiple type tags :3
	__baseType: BaseType // Only here to ease type inference

castarco / branded_vs_flavored.ts

Last active April 6, 2021 10:10

	// We use symbols to eliminate any chance for problems with serialization
	const __BaseType: unique symbol = new Symbol('__BaseType')
	const __Brand: unique symbol = new Symbol('__Brand')

	// We mark the "brand/flavor" fields as readonly to avoid anyone doing weird stuff with them
	// We add a "__BaseType" field to make possible "complex" type manipulations
	// We accept "symbol" tags as a mechanism to avoid "types forgery" to bypass the type checker,
	// although I foresee that most of the times it won't be used.
	export type Branded<BaseType, Tag extends string \| symbol> = BaseType & {
	readonly [__BaseType]: BaseType

castarco / TypedRegistryPattern.ts

Last active February 9, 2022 13:13

A "new" pattern to create fully-typed registries/containers!

	// This first file contains the first iteration of this pattern. It's already
	// nice, but not enough for full-fledged IoC libraries.
	// There's a second file in this same gist that goes one step further, although,
	// for now, it still needs some extra polish.

	// -----------------------------------------------------------------------------
	// First: the two main interfaces.
	// They are the core of the pattern.
	// -----------------------------------------------------------------------------
	export interface WritableRegistry {

castarco / .gitconfig

Last active February 23, 2025 14:21