Drafting pattern entries: events and errors — Forge College

Why formalize event and error translations now? Consistent, reviewable pattern entries make it far easier to verify that a Solidity behavior and its Anchor/Rust translation preserve semantics and diagnostics across EVM-to-Solana migrations. What you'll learn This lesson walks through assembling a single catalog-ready pattern entry that pairs a concrete Solidity event or error example with a vetted Rust/Anchor translation. You'll learn how Solidity require checks and custom errors map to Anchor idioms (require! macros, #[error_code] enums), how revert reasons and Rust panics translate into ProgramError and program logs, and how to convert debugging findings into a diagnostics section testers can run. The lesson covers producing minimal runnable snippets, writing reproduction steps for a reviewer, and suggesting unit/integration test commands for a local validator or test harness. Who this is for Intermediate developers who understand Solidity and basic Anchor/Rust concepts and who want to document reliable translation patterns for cross-chain migration or auditing. Prior knowledge of Solidity events/errors and Anchor program structure is assumed. Key topics covered - Side-by-side Solidity snippet and Rust/Anchor translation that are self-contained or annotated for compilation - Mapping Solidity require-style checks to Anchor require! macros and Result returns - Converting Solidity custom errors into Anchor #[error_code] variants and explaining ProgramError mapping - Diagnostics: mapping revert messages, logs, and stack traces to expected Anchor logs and error codes - Minimal runnable tests and reproduction steps for local validator or test harness verification Call to action Assemble your draft entry and make it review-ready—visit https://www.forge.college/ for more resources and examples.