Bump tree_haver from 3.2.3 to 3.2.4

[dependabot]

Bumps tree_haver from 3.2.3 to 3.2.4.

Release notes

Sourced from tree_haver's releases.

v3.2.4

[3.2.4] - 2026-01-04

• TAG: [v3.2.4][3.2.4t]
• COVERAGE: 92.07% -- 2229/2421 lines in 23 files
• BRANCH COVERAGE: 74.79% -- 786/1051 branches in 23 files
• 90.37% documented

Added

• External backend registration via backend_module - External gems can now register their own pure Ruby backends using the same API as built-in backends. This enables gems like rbs-merge to integrate with TreeHaver.parser_for without modifying tree_haver:

TreeHaver.register_language(
  :rbs,
  backend_module: Rbs::Merge::Backends::RbsBackend,
  backend_type: :rbs,
  gem_name: "rbs",
)
# Now TreeHaver.parser_for(:rbs) works!

• Backends::PURE_RUBY_BACKENDS constant - Maps pure Ruby backend names to their language and module info. Used for auto-registration of built-in backends.
• TreeHaver.register_builtin_backends! - Registers built-in pure Ruby backends (Prism, Psych, Commonmarker, Markly) in the LanguageRegistry using the same API that external backends use. Called automatically by parser_for on first use.
• TreeHaver.ensure_builtin_backends_registered! - Idempotent helper that ensures built-in backends are registered exactly once.
• parser_for now supports registered backend_module backends - When a language has a registered backend_module, parser_for will use it. This enables external gems to provide language support without tree-sitter grammars:
  • Checks LanguageRegistry for registered backend_module entries
  • Creates parser from the backend module's Parser and Language classes
  • Falls back to tree-sitter and Citrus if no backend_module matches
• RBS dependency tags in DependencyTags - New RSpec tags for RBS parsing:
  • :rbs_grammar - tree-sitter-rbs grammar is available and parsing works
  • :rbs_parsing - at least one RBS parser (rbs gem OR tree-sitter-rbs) is available
  • :rbs_gem - the official rbs gem is available (MRI only)
  • Negated versions: :not_rbs_grammar, :not_rbs_parsing, :not_rbs_gem
  • New availability methods: tree_sitter_rbs_available?, rbs_gem_available?, any_rbs_backend_available?
• Support for tree-sitter 0.26.x ABI - TreeHaver now fully supports grammars built against tree-sitter 0.26.x (LANGUAGE_VERSION 15). This required updates to vendored dependencies:
  • ruby-tree-sitter: Updated to support tree-sitter 0.26.3 C library API changes including new ts_language_abi_version() function, UTF-16 encoding split, and removal of deprecated parser timeout/cancellation APIs
  • tree_stump (Rust backend): Updated to tree-sitter Rust crate 0.26.3 with new abi_version() method, u32 child indices, and streaming iterator-based query matches
• MRI backend now loads grammars with LANGUAGE_VERSION 15 - Previously, MRI backend

... (truncated)

Changelog

Sourced from tree_haver's changelog.

[3.2.4] - 2026-01-04

• TAG: [v3.2.4][3.2.4t]
• COVERAGE: 92.07% -- 2229/2421 lines in 23 files
• BRANCH COVERAGE: 74.79% -- 786/1051 branches in 23 files
• 90.37% documented

Added

• External backend registration via backend_module - External gems can now register their own pure Ruby backends using the same API as built-in backends. This enables gems like rbs-merge to integrate with TreeHaver.parser_for without modifying tree_haver:

TreeHaver.register_language(
  :rbs,
  backend_module: Rbs::Merge::Backends::RbsBackend,
  backend_type: :rbs,
  gem_name: "rbs",
)
# Now TreeHaver.parser_for(:rbs) works!

• Backends::PURE_RUBY_BACKENDS constant - Maps pure Ruby backend names to their language and module info. Used for auto-registration of built-in backends.
• TreeHaver.register_builtin_backends! - Registers built-in pure Ruby backends (Prism, Psych, Commonmarker, Markly) in the LanguageRegistry using the same API that external backends use. Called automatically by parser_for on first use.
• TreeHaver.ensure_builtin_backends_registered! - Idempotent helper that ensures built-in backends are registered exactly once.
• parser_for now supports registered backend_module backends - When a language has a registered backend_module, parser_for will use it. This enables external gems to provide language support without tree-sitter grammars:
  • Checks LanguageRegistry for registered backend_module entries
  • Creates parser from the backend module's Parser and Language classes
  • Falls back to tree-sitter and Citrus if no backend_module matches
• RBS dependency tags in DependencyTags - New RSpec tags for RBS parsing:
  • :rbs_grammar - tree-sitter-rbs grammar is available and parsing works
  • :rbs_parsing - at least one RBS parser (rbs gem OR tree-sitter-rbs) is available
  • :rbs_gem - the official rbs gem is available (MRI only)
  • Negated versions: :not_rbs_grammar, :not_rbs_parsing, :not_rbs_gem
  • New availability methods: tree_sitter_rbs_available?, rbs_gem_available?, any_rbs_backend_available?
• Support for tree-sitter 0.26.x ABI - TreeHaver now fully supports grammars built against tree-sitter 0.26.x (LANGUAGE_VERSION 15). This required updates to vendored dependencies:
  • ruby-tree-sitter: Updated to support tree-sitter 0.26.3 C library API changes including new ts_language_abi_version() function, UTF-16 encoding split, and removal of deprecated parser timeout/cancellation APIs
  • tree_stump (Rust backend): Updated to tree-sitter Rust crate 0.26.3 with new abi_version() method, u32 child indices, and streaming iterator-based query matches
• MRI backend now loads grammars with LANGUAGE_VERSION 15 - Previously, MRI backend using ruby_tree_sitter could only load grammars with LANGUAGE_VERSION ≤ 14. Now supports

... (truncated)

Commits

• 218f2d0 🔖 Prepare release v3.2.4
• 06c553f ✅ Prevent order dependency in test
• 5377cc2 🚨 Linting
• dd5027b ✨ Plugin API for to register backends and languages
• 0e651ec ✨ Support for jtreesitter v0.26+; Backend API validation; grammar installatio...
• c9324ea 🔒️ Checksums for v3.2.3
• See full diff in compare view

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[github-actions]

Package	Line Rate	Branch Rate	Health
toml-merge	100%	82%	✔
Summary	100% (78 / 78)	82% (33 / 40)	✔

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