Struct LookupParts 

struct LookupParts<'a> {
    lt_bytes: &'a [u8],
    n: usize,
    d8_size: usize,
    inner_bytes: usize,
    table_ids8_desc: Option<(&'a [u8], usize)>,
    sel_xor_desc: Option<(&'a [u8], usize)>,
    sel_lookup_desc: Option<(&'a [u8], usize)>,
    sel_range_check_desc: Option<(&'a [u8], usize)>,
    sel_ffmul_desc: Option<(&'a [u8], usize)>,
    runtime_selector_desc: Option<(&'a [u8], usize)>,
    runtime_tables: Option<Vec<RuntimeTableSpec>>,
    runtime_table_offset: Option<usize>,
}

Validated, not-yet-materialised lookup sections gathered during the reader’s validation phase. The &[u8] descriptors borrow the mmap; the owned runtime-table data is parsed eagerly (it is not mmap-backed). All of this is turned into a LookupConstraintSystem in the infallible materialisation phase so no mmap-backed Vec is built before validation completes. _desc fields are (bytes, element_count).

Fields

lt_bytes: &'a [u8]

n: usize

Number of inner d8-sized arrays packed into lt_bytes.

d8_size: usize

inner_bytes: usize

table_ids8_desc: Option<(&'a [u8], usize)>

sel_xor_desc: Option<(&'a [u8], usize)>

sel_lookup_desc: Option<(&'a [u8], usize)>

sel_range_check_desc: Option<(&'a [u8], usize)>

sel_ffmul_desc: Option<(&'a [u8], usize)>

runtime_selector_desc: Option<(&'a [u8], usize)>

runtime_tables: Option<Vec<RuntimeTableSpec>>

runtime_table_offset: Option<usize>