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This pull request introduces a range of changes across multiple components of the codebase, focusing on adding new functionality, improving error handling, and enhancing test diagnostics. The most significant updates include the introduction of the PermissionOp::Share operation, improvements to predicate handling, and enhancements to test diagnostics for better reporting.

New functionality:

  • Added a new PermissionOp::Share variant to the PermissionOp enum, along with its parsing logic in the dada-parser and its handling in the code generation and type-checking logic. (components/dada-ir-ast/src/ast/expr.rs [1] components/dada-codegen/src/cx/generate_expr.rs [2] components/dada-ir-sym/src/check/exprs.rs [3] components/dada-parser/src/expr.rs [4]

Predicate handling improvements:

  • Updated the Predicate::invert method to return an Option<Predicate> instead of directly returning a Predicate, improving safety and clarity. (components/dada-ir-sym/src/check/predicates.rs components/dada-ir-sym/src/check/predicates.rsL56-R61)
  • Enhanced the handling of predicates in inference and error reporting, ensuring more precise diagnostics when predicates fail to meet expectations. (components/dada-ir-sym/src/check/inference.rs [1] components/dada-ir-sym/src/check/predicates/var_infer.rs [2] [3]

Enhanced test diagnostics:

  • Improved the formatting of test failure diagnostics by including annotation spans and rendering them in a more user-friendly format. (components/dada-lang/src/main_lib/test.rs [1] components/dada-lang/src/main_lib/test/expected.rs [2]
  • Added logic to display detailed test reports when only a single test fails, aiding in debugging. (components/dada-lang/src/main_lib/test.rs components/dada-lang/src/main_lib/test.rsR98-R104)

Error handling and reporting:

  • Introduced a new Because::PermIsNot variant to the Because enum for more specific error messages related to permissions and predicates. (components/dada-ir-sym/src/check/report.rs [1] [2]
  • Refactored error handling in various functions to utilize the new Because::PermIsNot variant and improve clarity. (components/dada-ir-sym/src/check/predicates/require_lent.rs [1] [2]

Code cleanup and refactoring:

  • Simplified type construction for permissions by introducing helper methods like SymPerm::referenced, SymPerm::mutable, and SymPerm::our. (components/dada-ir-sym/src/ir/types.rs components/dada-ir-sym/src/ir/types.rsL352-R363)
  • Removed unused imports and reorganized dependencies for better readability and maintainability. (components/dada-ir-sym/src/check/env/combinator.rs [1] [2]

These changes collectively enhance the functionality, maintainability, and usability of the codebase while improving developer and user experience.

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nikomatsakis and others added 15 commits May 22, 2025 05:08
- Generate rustdocs using `cargo doc --workspace --no-deps --document-private-items`
- Copy generated documentation to `book/build/impl/` for Netlify deployment
- Rustdocs will be available at `/impl/` on the deployed site

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Add `just doc` to generate rustdocs with private items
- Add `just doc-open` to generate and open docs in browser
- Add `just doc-serve` to serve docs locally at http://localhost:8000

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Add CLAUDE.md with project instructions for Claude Code
- Add docs/ directories with detailed documentation for core crates
- Add root src/lib.rs for workspace documentation entry point
- Documentation covers type checking, permission system, subtyping, and type inference

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Add `doctest = false` to core crates to disable doctests
- Prevents documentation build failures from code examples in docs
- Improves rustdoc generation reliability for CI/CD pipeline

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Add comprehensive module documentation using include_str\! for external docs
- Make core checking modules pub(crate) for better --document-private-items support
- Link to detailed documentation files for type checking, inference, permissions, and subtyping
- Improve discoverability of internal implementation details in rustdocs

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Fix malformed rustdoc links throughout codebase
- Update references to use proper rustdoc syntax [item](path)
- Replace broken [] references with correct type names
- Improve cross-references between modules and types
- Ensure documentation builds without link warnings

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
- Delete empty/unused symbolize.rs file
- Clean up dead code to improve codebase maintainability
- Reduce clutter in rustdoc generation

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Allow explicit `'db` lifetime specifications and complex function signatures.
Removes unfulfilled lint expectations that are no longer needed.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Allow large error types in development tooling where performance impact
is minimal. The large ErrorResponse comes from Axum framework constraints.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Applies automatic fixes for format strings, boolean expressions, imports,
and other code quality improvements. Disables remaining style preference
lints to maintain clean clippy output.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Implements ability to mark tests as FIXME so they are run but failures are ignored. This allows tests to be included in the test suite without breaking CI while work is ongoing.

- Add `#:FIXME` directive parsing in test expectations
- Track fixme status in FailedTest struct
- Separate fixme failures from regular failures in reporting
- Report fixme failures to stderr but don't count as test failures

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
Mark tests that are currently failing but should eventually pass as FIXME tests so they don't break CI while the underlying issues are being resolved.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
@nikomatsakis nikomatsakis added this pull request to the merge queue May 23, 2025
Merged via the queue into dada-lang:main with commit 8bdf2b1 May 23, 2025
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