pub struct UpgradeNote { /* private fields */ }Expand description
An Upgrade note: upgrades the code of the network account that consumes it by calling the
upgrade procedure of its UpgradeManager
component.
The commitment to the new code is carried in the note’s storage as [NEW_CODE_COMMITMENT].
The called upgrade procedure authorizes the sender through the account-wide
Authority component.
The new code itself is carried in an AccountCodeUpgradeAttachment, which the note script
requires and inserts into the advice map, from which the transaction host provides it to the
kernel. The code must therefore fit into the note’s NoteAttachments. If the transaction
already provides a different encoding of the same code through the advice map (see
AccountCodeUpgrade), consuming the note fails.
The note is always public (for network execution) and bound to the target account by a
NetworkAccountTarget attachment. The script asserts both before calling upgrade.
Implementations§
Source§impl UpgradeNote
impl UpgradeNote
Sourcepub fn builder() -> UpgradeNoteBuilder
pub fn builder() -> UpgradeNoteBuilder
Builds a new UpgradeNote that upgrades the code of target to code.
§Errors
Returns an error if:
- the attachments carry an
AccountCodeUpgradeAttachmentthat does not decode or carries code other thancode. targetis not a public account (the note is bound to it via aNetworkAccountTarget, which requires a public target).- the attachments carry a
NetworkAccountTargetfor an account other thantarget. - the attachments exceed their protocol limit (see
NoteAttachments::new); the code and target attachments occupy some of the available words and slots.
Source§impl UpgradeNote
impl UpgradeNote
Sourcepub const NUM_STORAGE_ITEMS: usize = Word::NUM_ELEMENTS
pub const NUM_STORAGE_ITEMS: usize = Word::NUM_ELEMENTS
Number of storage items of an Upgrade note: the new code commitment.
Must be kept in sync with NUM_STORAGE_ITEMS in the note script.
Sourcepub fn script() -> NoteScript
pub fn script() -> NoteScript
Returns the script of the Upgrade note.
Sourcepub fn script_root() -> NoteScriptRoot
pub fn script_root() -> NoteScriptRoot
Returns the script root of the Upgrade note.
Sourcepub fn sender(&self) -> AccountId
pub fn sender(&self) -> AccountId
Returns the account ID of the note’s sender (the account authorized for the upgrade).
Sourcepub fn target(&self) -> AccountId
pub fn target(&self) -> AccountId
Returns the account ID of the upgraded account; the target of the note.
Sourcepub fn new_code_commitment(&self) -> Word
pub fn new_code_commitment(&self) -> Word
Returns the commitment to the code the note upgrades the target account to.
Sourcepub fn serial_number(&self) -> Word
pub fn serial_number(&self) -> Word
Returns the note’s serial number.
Sourcepub fn attachments(&self) -> &NoteAttachments
pub fn attachments(&self) -> &NoteAttachments
Returns the attachments carried by the note.
Trait Implementations§
Source§impl Clone for UpgradeNote
impl Clone for UpgradeNote
Source§fn clone(&self) -> UpgradeNote
fn clone(&self) -> UpgradeNote
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for UpgradeNote
impl Debug for UpgradeNote
Source§impl From<UpgradeNote> for Note
impl From<UpgradeNote> for Note
Source§fn from(note: UpgradeNote) -> Note
fn from(note: UpgradeNote) -> Note
Converts to this type from the input type.
Source§impl NoteConsumptionCost for UpgradeNote
impl NoteConsumptionCost for UpgradeNote
Source§fn consumption_cycles() -> u32
fn consumption_cycles() -> u32
Cycles of the canonical network-account transaction consuming this note
(maximum across the benchmarked execution paths - an estimate, not a worst case).
Source§fn created_notes() -> Vec<NoteScriptRoot>
fn created_notes() -> Vec<NoteScriptRoot>
Script roots of all the notes this note’s consumption is expected to create. Read more
Auto Trait Implementations§
impl Freeze for UpgradeNote
impl RefUnwindSafe for UpgradeNote
impl Send for UpgradeNote
impl Sync for UpgradeNote
impl Unpin for UpgradeNote
impl UnsafeUnpin for UpgradeNote
impl UnwindSafe for UpgradeNote
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