Struct HopperSchemaPointer 

#[repr(C)]
pub struct HopperSchemaPointer {
    pub schema_version: u16,
    pub pointer_flags: u16,
    pub manifest_hash: [u8; 32],
    pub idl_hash: [u8; 32],
    pub codama_hash: [u8; 32],
    pub uri_len: u16,
    pub uri: [u8; 192],
}

On-chain account that points to a Hopper program’s schema.

Stored at PDA ["hopper-schema", program_id]. Contains hashes of the manifest, IDL, and Codama projection, plus a URI to fetch the full manifest. See docs/ONCHAIN_SCHEMA_PUBLICATION.md.

Wire layout (294 bytes payload + 16 bytes header = 310 bytes)

[0..16]    Hopper header (disc=255, ver=1)
[16..18]   schema_version   u16 LE
[18..20]   pointer_flags    u16 LE
[20..52]   manifest_hash    [u8; 32]
[52..84]   idl_hash         [u8; 32]
[84..116]  codama_hash      [u8; 32]
[116..118] uri_len          u16 LE
[118..310] uri              [u8; 192]

Fields

schema_version: u16

Schema format version (currently 1).

pointer_flags: u16

Feature flags (HAS_MANIFEST, HAS_IDL, HAS_CODAMA, HAS_URI, …).

manifest_hash: [u8; 32]

SHA-256 of the manifest JSON.

idl_hash: [u8; 32]

SHA-256 of the IDL JSON.

codama_hash: [u8; 32]

SHA-256 of the Codama projection JSON.

uri_len: u16

Length of the URI string (0..192).

uri: [u8; 192]

UTF-8 URI pointing to the manifest (padded with zeros).

Implementations

impl HopperSchemaPointer

pub const DISC: u8 = 255

Reserved discriminator for schema pointer accounts.

pub const PAYLOAD_LEN: usize

Total payload size (excluding Hopper header).

pub const ACCOUNT_LEN: usize

Total account size including Hopper header.

pub const PDA_SEED: &'static [u8] = b"hopper-schema"

PDA seed prefix.

pub const FLAG_HAS_MANIFEST: u16 = 0x0001

pub const FLAG_HAS_IDL: u16 = 0x0002

pub const FLAG_HAS_CODAMA: u16 = 0x0004

pub const FLAG_HAS_URI: u16 = 0x0008

pub const FLAG_URI_IS_IPFS: u16 = 0x0010

pub const FLAG_URI_IS_ARWEAVE: u16 = 0x0020

pub fn uri_str(&self) -> &str

Get the URI as a string slice.

pub fn has_flag(&self, flag: u16) -> bool

Check if a specific flag is set.

Trait Implementations

impl Clone for HopperSchemaPointer

fn clone(&self) -> HopperSchemaPointer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for HopperSchemaPointer