polyglot-error-handling-standardization

Standardizing error handling across FFI boundaries involves defining conversion strategies that preserve error context, including messages, codes, source locations, and cause chains, to prevent silent failures when bridging languages like Rust, Python, and Go.

Converting Rust errors to Python requires mapping them to idiomatic exceptions like ValueError while preserving the original message, error code, and cause chain to ensure debugging information remains intact across the boundary.

Common anti-patterns include losing error context during conversion, relying on string-based error codes, and dropping cause chains, all of which lead to silent failures and make debugging across FFI boundaries difficult.

Yes, this approach provides language-specific idiomatic error handling patterns for Go, Java, JavaScript, Python, and Ruby, ensuring errors are translated appropriately into each language's native error structures while maintaining context.

Errors fail silently across FFI when conversion strategies drop critical context like source locations or cause chains, preventing the host language from properly surfacing the original failure and complicating debugging.

The best way to preserve cause chains is to implement standardized FFI error conversion that explicitly maps Rust error sources to JavaScript error structures, ensuring the full context of the original failure is maintained.