Method find_enclosing_scope

src/symbol_map/mod.rs:529–537

Find the innermost scope that contains `offset`. Returns the `scope_start` (opening brace offset) of the innermost function/method/closure body that contains the cursor, or `0` when the cursor is in top-level code.

(&self, offset: u32)

    /// function/method/closure body that contains the cursor, or `0` when
    /// the cursor is in top-level code.
    pub fn find_enclosing_scope(&self, offset: u32) -> u32 {
        let mut best: u32 = 0;
        for &(start, end) in &self.scopes {
            if start <= offset && offset <= end && start > best {
                best = start;
            }
        }
        best
    }

    /// Determine the effective scope for a variable reference at `offset`.
    ///