Module reader 

Segment-aware partial account reader

Clients usually want only a few fields of a large account, not the whole blob. Hopper’s schema knows every field’s byte offset and canonical type, so a client can pull exactly the bytes it needs and skip the rest. This is the off-chain mirror of the on-chain segment-borrow idea: read narrow, don’t deserialize what you won’t touch.

Competitive framing:

• Quasar clients rely on Codama/Kinobi full deserialization.
• Anchor clients rely on Borsh full deserialization.
• Pinocchio has no client story at all.

Here the reader verifies the layout_id first, then returns raw-typed accessors for any named field, backed by the same offset tables the on-chain side uses.

Structs

SegmentReader

Zero-copy segment-aware partial account reader.

Enums

ReaderError

Errors produced by the segment-aware reader.