
Security News
Static vs. Runtime Reachability: Insights from Latio’s On the Record Podcast
The Latio podcast explores how static and runtime reachability help teams prioritize exploitable vulnerabilities and streamline AppSec workflows.
@effect/babel-plugin
Advanced tools
- [Why?](#why) - [Installation](#installation) - [Usage](#usage) - [Via `.babelrc` (Recommended)](#via-babelrc-recommended) - [Via CLI](#via-cli) - [Via Node API](#via-node-api) - [Transformers](#transformers) - [Rewrite Pipe](#rewrite-pipe) - [
This Babel plugin helps to improve the performance of functional code written with the @fp-ts/*
and @effect/*
ecosystem of libraries.
There are two transformers contained within this plugin:
rewritePipe
rewriteIdentity
npm install -D @effect/babel-plugin
or
yarn add -D @effect/babel-plugin
or
pnpm install -D @effect/babel-plugin
.babelrc
(Recommended).babelrc
{
"plugins": ["@effect/babel-plugin"]
}
babel --plugins @effect/babel-plugin script.js
require("babel-core").transform("pipe(a, f(() => b))", {
plugins: ["@effect/babel-plugin"],
})
The following configuration options can also be passed to @effect/babel-plugin
:
/**
* The configuration options for `@effect/babel-plugin`.
*/
export interface PluginConfig {
/**
* Rewrites calls to `pipe` to directly call the piped functions.
*
* By default, the plugin will only rewrite calls to `pipe` imported from
* `@fp-ts/core/Function`. However, the `targetImports` configuration option
* can be used to allow the plugin to rewrite calls to `pipe` imported from
* custom paths.
*/
readonly rewritePipe?: false | {
targetImports: ReadonlyArray<string>
}
/**
* Rewrites calls to `identity` to remove them entirely.
*
* By default, the plugin will only rewrite calls to `identity` imported from
* `@fp-ts/core/Function`. However, the `targetImports` configuration option
* can be used to allow the plugin to rewrite calls to `identity` imported
* from custom paths.
*/
readonly rewriteIdentity?: false | {
targetImports: ReadonlyArray<string>
}
}
The objective of this Babel transformer is to improve the performance of pipeable APIs by re-writing calls to pipe
at compile time to directly call the piped methods.
Concretely, this results in the following code example:
pipe(a, f(() => b), g(() => c))
being transformed into direct calls to the previously piped functions:
g(() => c)(f(() => b)(a))
Calls to pipe
are considered CallExpression
s in the Babel AST. To ensure that all calls to pipe are re-written correctly, the following cases are handled:
pipe
is imported as a variable from a module and referenced as an Identifier
in the ASTpipe
is imported as a namespace from a module and referenced as part of a MemberExpression
The objective of this Babel transformer is to improve the performance of
pipeable APIs by re-writing calls to identity
at compile time to remove
them entirely
Concretely, this results in the following code example:
identity(a)
being transformed to remove calls to identity
:
a;
Calls to identity
will also be removed when part of a pipe
call:
pipe(a, identity, f(() => b))
will be transformed to:
f(() => b)(a);
FAQs
- [Why?](#why) - [Installation](#installation) - [Usage](#usage) - [Via `.babelrc` (Recommended)](#via-babelrc-recommended) - [Via CLI](#via-cli) - [Via Node API](#via-node-api) - [Transformers](#transformers) - [Rewrite Pipe](#rewrite-pipe) - [
The npm package @effect/babel-plugin receives a total of 11 weekly downloads. As such, @effect/babel-plugin popularity was classified as not popular.
We found that @effect/babel-plugin demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
The Latio podcast explores how static and runtime reachability help teams prioritize exploitable vulnerabilities and streamline AppSec workflows.
Security News
The latest Opengrep releases add Apex scanning, precision rule tuning, and performance gains for open source static code analysis.
Security News
npm now supports Trusted Publishing with OIDC, enabling secure package publishing directly from CI/CD workflows without relying on long-lived tokens.