Add begin/rescue/ensure exception handling support#48
Merged
Conversation
Implement type inference for Ruby's exception handling constructs (begin/rescue/else/ensure and inline rescue modifier) following the Union type pattern established in conditionals.rs. Key design decisions: - rescue chains are processed recursively (consistent with elsif) - rescue variable (=> e) is scoped to the rescue block (save/restore) - else clause replaces begin body type (Ruby spec compliance) - ensure clause is side-effect only, does not affect return type - Empty rescue body evaluates to nil - Exception variable defaults to StandardError type Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
begin/rescue/else/ensureblocks and inlinerescuemodifier=> e) is scoped to the rescue block with save/restore semanticselseclause replaces begin body type per Ruby spec;ensureis side-effect onlynilTest plan
exceptions.rscovering all branch combinationsLocalEnv::remove_varunit testscd rust && cargo test --libto verify all Rust tests passbundle exec rake testto verify all Ruby integration tests pass🤖 Generated with Claude Code