Function load_block_extension

pub fn load_block_extension(
    buf: &mut [u8],
    offset: usize,
    index: usize,
    source: Source,
) -> Result<usize, SysError>

Available on neither crate feature native-simulator nor crate feature stub-syscalls.

Load extension field associated either with an input cell, a dep cell, or a header dep based on source and index value.

Arguments

• buf - a writable buf used to receive the data
• offset - offset
• index - index of cell
• source - source of cell

Note: available after ckb 2nd hardfork.