Struct QueryRule 

pub struct QueryRule {
    pub name: &'static str,
    pub languages: &'static [Language],
    pub pattern: &'static str,
    pub severity: Severity,
    pub handler: Option<QueryHandler>,
    pub skips_test_files: bool,
}

A tree-sitter query based rule definition.

This is the primary building block for tree-sitter rules. Each rule specifies a query pattern (in tree-sitter query syntax), the languages it applies to, and a handler that converts query matches into CodeIssues.

Fields

name: &'static str

Unique rule identifier (e.g. “single-letter-variable”).

languages: &'static [Language]

Languages this rule applies to.

pattern: &'static str

The tree-sitter query pattern string. Uses standard tree-sitter query syntax with named captures.

severity: Severity

Default severity when match is found.

handler: Option<QueryHandler>

Custom handler to produce issues from a match. If None, a default handler is used (one issue per match at the capture node).

skips_test_files: bool

Whether to skip test files.