[exKAZUu]

Why

Valid Java intersection casts such as (Object & Serializable) ~value, a nested cast, or a switch operand produce parser errors. This addresses the operand gap identified in grammar-orchard/tree-sitter-java-orchard#10 with compiler-checked examples.

Requirements

required: Improve the forked grammar repositories, excluding CSS and Markdown, as much as possible; backward compatibility may be ignored.
required: Review fork issues and major upstream issues, PRs and recent commits; check target PRs for duplicates and use a dedicated PR from latest main for each eligible origin.
required: Run review-booster and complete-pr concurrently, then release the changes, and continue the remaining eligible items.
required: Preserve the observable type/value and operator/operand fields used by parser queries.
chosen: Address the intersection-cast operand defect from grammar-orchard/tree-sitter-java-orchard#10 separately from the queued postfix/cast precedence defect, so each origin stays independently reviewable.
chosen: Share complement parsing through a hidden rule aliased to unary_expression, preserving its existing public fields and left associativity; the verified defect requires additional intersection operands, not a global associativity change.
chosen: Preserve the existing single-cast syntax and the binary interpretation of (A & B) + value and (A & B) - value, which the compiler-checked controls exercise.

Customer Summary

Intersection casts accept nested casts, logical and bitwise complements, and switch expressions. Queries retain the existing cast type/value and unary operator/operand fields.

Technical Summary

Extend the intersection-cast value alternatives and share !/~ parsing through a hidden rule aliased to unary_expression. Keep current unary associativity and the existing single-cast branch. Regenerate the native parser; the public node schema and shipped queries are unchanged. A corpus fixture checks complete declarations and disambiguation, while an API test checks field-based queries on the alias and ordinary unary expressions.

Testing

• Official JDK 27.0.1 compiled the eight-method intersection fixture and 17-method unary controls with no diagnostics.
• Canonical CLI 9 generation, native/Wasm corpus: 162 cases passed; bun run verify passed with no code-gauge findings; 68 focused tests in 12 files passed; Rust unit and doc tests passed.
• All 162 corpus cases passed 100 incremental fuzz iterations with up to 10 edits, recorded seed 5300980673173803960.
• Actual published 8.0.2 reproduces the cast errors. Web API boundary checks validate six cast roles, eight method tags and six edit/undo states. Full trees, fields, spans and shipped captures match published 8.0.2 for 32 control programs, 240 whitespace cases and six existing CST/query controls.
• Full PR CI passed, including browser, Rust, Linux and both macOS variants, and robustness fuzzing.

Notes

Postfix/cast precedence is a separate queued origin. The scoped control comparisons do not claim universal parser parity.