Crystalruby

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crystalruby is a Coding & Development tool that allows embedding Crystal code directly within Ruby. It significantly boosts performance for CPU or memory intensive tasks by compiling Crystal code.

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At a glance

Pricing

Open Source

Free tier

Yes

API

Skill level

Technical

About

What is crystalruby?

crystalruby is a Ruby gem designed to embed Crystal code directly into Ruby applications, enabling developers to leverage Crystal's performance benefits for CPU or memory-intensive operations. By simply annotating Ruby methods with `crystallize`, developers can compile and execute these methods in Crystal, achieving significant speed improvements (e.g., 50x faster for prime counting). The gem supports defining parameter and return types, handling both Ruby-compatible and Crystal-only syntax. It also offers advanced features like passing data by reference for efficiency, calling Ruby methods from Crystal, and integrating with Crystal shards like Kemal for web development. This allows for hybrid applications that combine Ruby's flexibility with Crystal's raw speed.

Best used for

Ideal for developers who need to significantly boost the performance of CPU or memory-intensive sections within Ruby applications, integrate Crystal's speed into existing Ruby projects, and build hybrid applications leveraging both languages. Especially valuable for optimizing algorithms, data processing, or web service routes where raw speed is critical.

Common actions

optimize code performance

integrate programming languages

accelerate Ruby applications

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Capabilities

Key features

Embed Crystal code
Define method types
Support Crystal-only syntax
Pass data by reference
Call Ruby from Crystal
Integrate Crystal shards

Target Audience

developer

Integrations

Not yet documented

Pricing & Plans

Open Source

Free

FAQs

What are the system requirements for crystalruby?

To use crystalruby, you need a modern Crystal compiler installed on your system. The gem handles the compilation and linking of Crystal code, but the compiler itself must be present for the process to work correctly.

How does crystalruby improve performance?

crystalruby improves performance by compiling specified Ruby methods into Crystal code. Crystal is a compiled language known for its speed, often comparable to C. By offloading CPU or memory-intensive tasks to Crystal, applications can achieve significant speedups, as demonstrated by benchmarks showing 50x faster execution.

Can I call Ruby methods from within Crystal code using crystalruby?

Yes, crystalruby allows you to call Ruby methods from Crystal. You must annotate the Ruby method with `expose_to_crystal` to enable the necessary type conversions and ensure it can be invoked from your embedded Crystal code.

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