Method get_ctx_idx

crates/parser/src/visit.rs:588–592

(&self, depth: u32)

    }

    fn get_ctx_idx(&self, depth: u32) -> Option<usize> {
        let len = self.ctx_stack.len();
        let idx = len.checked_sub(depth as usize + 1)?;
        Some(idx)
    }

    fn emit_dropkeep(&mut self, base: StackBase, c32: u16, c64: u16, c128: u16) {
        if base.s32 == 0 && c32 == 0 && base.s64 == 0 && c64 == 0 && base.s128 == 0 && c128 == 0 {