ifacemaker ☆

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Description:
Generate interfaces from structure methods

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: golang interfaces code-generation developer-tools refactoring

Install: brew install ifacemaker

About:
Ifacemaker is a command-line tool that parses Go source code to generate interface definitions from existing struct methods. It automates the creation of interfaces, which is essential for decoupling components and improving testability in Go applications. This tool saves developers time and reduces errors by ensuring interfaces stay in sync with their implementing structs.

Key Features:

Parses Go source files to extract struct methods
Generates clean, idiomatic Go interface code
Supports generating interfaces for specific structs or packages
Helps enforce interface segregation principle (ISP)

Use Cases:

Generating mockable interfaces for unit testing
Decoupling implementation details from consumers
Creating facade interfaces for complex structs

Alternatives:

mockgen – mockgen generates mock implementations, while ifacemaker generates the interface definitions themselves
ifacemaker – Similar tools exist but ifacemaker focuses on extracting interfaces from concrete implementations

Version History

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