{"ast_node_type":"variable","tokens":[{"end":61,"kind":"keyword","start":0,"text":"if"}]}
        if let InitMaskBlocks::Lazy { state } = self.blocks {
    fn materialize_blocks(&mut self) -> &mut InitMaskMaterialized {
            self.blocks = InitMaskBlocks::Materialized(InitMaskMaterialized::new(self.len, state));