Rust Language Support

Summary

Details

File extensions

By default, Rust files are defined as:

[file_types.rust]
globs = ["*.rs"]

These patterns can be overridden from qlty.toml.

Test detection

Rust test functions are automatically detected using the following patterns:

[language.rust]
test_syntax_patterns = ["""
    (
      (mod_item
        name: (identifier) @name)
      (#eq? @name "test")
    )
  """, """
  (
    (attribute_item
      (attribute
        (identifier) @meta_item))
    (function_item) @function
    (#eq? @meta_item "test")
  )
  """]

Supported Rust versions

We officially support Rust 1.30 and later for maintainability checks and code coverage. Each plugin may have its own version requirements.