Method lookup_var_definition

src/definition/resolve.rs:104–115

Look up the most recent variable definition before `cursor_offset` in the precomputed symbol map for `uri`. Returns a cloned [`VarDefSite`] (if found) so that the mutex lock is not held across the resolution logic.

(
        &self,
        uri: &str,
        var_name: &str,
        cursor_offset: u32,
    )

    /// Returns a cloned [`VarDefSite`] (if found) so that the mutex lock
    /// is not held across the resolution logic.
    fn lookup_var_definition(
        &self,
        uri: &str,
        var_name: &str,
        cursor_offset: u32,
    ) -> Option<crate::symbol_map::VarDefSite> {
        let maps = self.symbol_maps.read();
        let map = maps.get(uri)?;
        let scope_start = map.find_enclosing_scope(cursor_offset);
        map.find_var_definition(var_name, cursor_offset, scope_start)
            .cloned()
    }

    /// If the cursor is physically sitting on a variable definition token
    /// (assignment LHS, parameter, foreach binding, etc.), return the