Struct TtsrAstMatcher 

pub struct TtsrAstMatcher { /* private fields */ }

AST condition matcher: holds a list of AstRules, dedups by file digest, and delegates actual pattern matching to an injectable AstMatcherFn.

Implementations

impl TtsrAstMatcher

pub fn new(rules: Vec<AstRule>) -> Self

Build a matcher with the default sg-backed pattern matcher.

pub fn with_matcher(rules: Vec<AstRule>, matcher: Box<AstMatcherFn>) -> Self

Build a matcher with a custom pattern function. Used by tests to avoid requiring sg on PATH.

pub fn rule_count(&self) -> usize

Number of registered rules (handy for diagnostics).

pub fn clear_dedup(&mut self)

Drop every cached digest. Call when a session restarts so old file snapshots don’t suppress fresh matches.

pub fn check_tool_snapshot( &mut self, file_path: &str, content: &str, ) -> Option<String>

Check one file’s content against every AST rule and return the name of the first rule whose pattern matches.

Steps:

1. Filter rules by file_scope glob (empty scope = match-all).
2. Hash the content; skip if this file’s digest hasn’t changed.
3. For each surviving rule, run the injected matcher.
4. Return the first matching rule’s name, or None.

The function is infallible by design: any matcher error collapses to “no match” rather than aborting the stream.

Trait Implementations

impl Debug for TtsrAstMatcher

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

Formats the value using the given formatter.