groovy-developer

Guide Groovy 4 development with metaprogramming, DSL design, and Spock testing.

2.9k|973|Updated Feb 10, 2010

Search Tags:#testing #metaprogramming #dsl #groovy #grails #groovy-4 #spock

Ready to run

npx skills add https://github.com/apache/grails-core --skill groovy-developer

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: groovy-developer
Source: https://github.com/apache/grails-core/tree/main/.agents/skills/groovy-developer
Command: npx skills add https://github.com/apache/grails-core --skill groovy-developer

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Groovy developers often struggle to master Groovy 4 features, metaprogramming, DSL design, and Grails integration. This skill provides expert guidance, practical examples, and best practices to accelerate learning and productivity in Groovy-based projects.

Core Features & Use Cases

Deep knowledge of Groovy 4 language features (syntax, closures, traits, GStrings)
Metaprogramming techniques (runtime and compile-time AST transformations)
DSL creation and usage (MarkupBuilder, JsonBuilder, DSL patterns)
Spock testing support and Grails integration with Java 17
Guidance for performance and static compilation using @CompileStatic, @GrailsCompileStatic

Quick Start

Summarize Groovy 4 metaprogramming concepts and show a starter DSL example for Grails.

Frequently Asked Questions about groovy-developer

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I create a custom DSL in Groovy 4?▼

Groovy metaprogramming allows dynamically modifying class behavior at runtime or compile-time via AST transformations. Use this technique to inject methods or properties when standard static definitions are insufficient.

How does metaprogramming work in Groovy?▼

Does Groovy 4 work with Java 17 and Grails?▼

Use Spock for testing Groovy applications by writing expressive and readable specifications. It integrates well with Grails, enabling behavior-driven development with robust mocking and stubbing capabilities.

What is the best way to test a Grails application?▼

When should I use @CompileStatic in Groovy?▼

Apply @CompileStatic when you need to enforce static type checking for performance optimization. Avoid using it when relying heavily on runtime metaprogramming features, as it restricts dynamic method dispatch.