go-defensive

What problem does it solve?

Go defensive programming patterns help engineers write robust, maintainable Go by enforcing safety boundaries and reducing common runtime errors.

Core Features & Use Cases

• Interface verification: compile-time checks to ensure types satisfy interfaces.
• Safe data ownership: copy slices and maps when crossing API boundaries to avoid unintended mutations.
• Deferral discipline: use defer to ensure resources are released correctly and safely.
• Avoid mutable globals: inject dependencies to keep code testable and predictable.
• Explicit field tagging: use struct field tags for stable serialization contracts.
• Time handling: prefer time.Time and time.Duration to avoid ambiguous raw integers.

Quick Start

Refactor code to enforce interface checks, copy-on-boundary data, and proper defer cleanup for all critical packages.