BEP-001: Exception Handling

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• internal boundary slack thread
• public github discussion

This proposal defines BAML's error handling mechanism: Universal Catch.

The core idea: catch is an operator that attaches to any scope—functions, loops, or expressions—without requiring structural changes to existing code.

Document Structure

Document	Purpose
00_background.md	Error handling landscape and requirements
01_proposal.md	Universal Catch syntax specification
02_learn.md	Practical guide and FAQ
03_alternatives.md	Rejected designs and rationale
04_tooling.md	IDE and compiler capabilities
05_deviations_from_ts.md	Differences from TypeScript/JavaScript
06_proposal_safe.md	The safe keyword for strict exhaustiveness

Start with 00_background.md for context, then 01_proposal.md for the syntax.