Function iter_blocks

crates/codegen/src/ir.rs:1862–1872

(blocks: &[Block])

}

fn iter_blocks(blocks: &[Block]) -> impl Iterator<Item = (BlockIdx, &Block)> + '_ {
    let mut next = BlockIdx(0);
    core::iter::from_fn(move || {
        if next == BlockIdx::NULL {
            return None;
        }
        let (idx, b) = (next, &blocks[next]);
        next = b.next;
        Some((idx, b))
    })
}

/// Generate Python 3.11+ format linetable from source locations
fn generate_linetable(