require-typed-check

If you want to require a module m but are not sure whether m is a Racket or Typed Racket module, try:

(require require-typed-check)
(require/typed/check m
  (id type)
  ....)

The syntax is the same as require/typed. If m happens to be a Typed Racket module, the statement expands to (require (only-in m id ....)). Otherwise, the statement expands to a require/typed.

Install

Through pkgs.racket-lang.org:

> raco pkg install require-typed-check

From source:

> git clone https://github.com/bennn/require-typed-check
> raco pkg install ./require-typed-check

Usage

Replace your require/typed with require/typed/check. That's it. This is useful because require/typed always guards imports with a contract.

Used heavily by our performance evaluation of gradual typing to programmatically generate all ways of typing a fixed group of modules. This package exists to make benchmarks from the "GTP" project more portable.

Example

The math library happens to be typed and the racket/contract library happens to be untyped. A typed/racket program can use require/typed to import functions from either library, but the functions from math will be wrapped in an unnecessary contract. Using require/typed/check avoids the unnecessary contract:

#lang typed/racket/base

(require require-typed-check)

(require/typed/check math
  (divides? (-> Integer Integer Boolean)))

(require/typed/check racket/contract
  (has-contract? (-> Any Boolean)))

(has-contract? divides?)
;; ==> #false
(has-contract? has-contract?)
;; ==> #true

LLazarek/require-typed-check

require-typed-check

Install

Usage

Example