Struct BashArityDict 

pub struct BashArityDict { /* private fields */ }

Arity dictionary for bash command-prefix allow rules.

Provides arity-aware prefix extraction so that auto_allow = ["git status"] correctly matches git status -s and git status --porcelain without also matching git push.

Example

use codewhale_execpolicy::bash_arity::BashArityDict;

let dict = BashArityDict::new();
assert_eq!(dict.classify(&["git", "status", "-s"]),   "git status");
assert_eq!(dict.classify(&["git", "push", "origin"]), "git push");
assert_eq!(dict.classify(&["npm", "run", "dev"]),     "npm run dev");
assert_eq!(dict.classify(&["ls", "-la"]),             "ls");

Implementations

impl BashArityDict

pub fn new() -> Self

Construct a new dictionary pre-loaded with BASH_ARITY_TABLE.

pub fn classify(&self, tokens: &[&str]) -> String

Return the canonical command prefix for a slice of command tokens.

Algorithm

1. Strip all flag tokens (tokens that start with -).
2. Build candidates of depth 1..=3 from positional tokens (longest first).
3. If a candidate matches a dictionary entry, return arity positional tokens joined with spaces.
4. If no dictionary entry matches, return the single base command name.

pub fn allow_rule_matches(&self, pattern: &str, command: &str) -> bool

Return true if the allow-rule pattern (a command prefix string such as "git status") matches the concrete command command.

Matching is arity-aware:

• "git status" matches "git status -s" and "git status --porcelain".
• "git status" does not match "git push origin main".
• Exact string patterns (e.g. "ls") still work as before.

For patterns that are not in the arity table, the function falls back to a plain prefix test on the normalised command so that existing exact-match rules continue to work unchanged.

pub fn entries(&self) -> impl Iterator<Item = (&str, u8)>

Iterate over all entries in the dictionary.

pub fn len(&self) -> usize

Return the number of entries in the dictionary.

pub fn is_empty(&self) -> bool

Return true if the dictionary is empty.

Trait Implementations

impl Clone for BashArityDict

fn clone(&self) -> BashArityDict

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BashArityDict

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BashArityDict

fn default() -> Self

Returns the “default value” for a type.