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LamportPolicy

Enum LamportPolicy 

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pub enum LamportPolicy {
    Undeclared,
    Declared(&'static [u8]),
}
Expand description

The lamport-write dimension of a WritePolicy.

A WriteRange covers data bytes; Sealevel writability also covers lamport credits/debits (close, top-up, transfer). This enum records whether the instruction declared that second dimension:

  • Undeclared: the policy says nothing about lamports. Lamport mutation stays ungoverned (today’s behavior for every pre-existing strict_writes context), and the write set is not mutation-complete.
  • Declared: only the listed account indices may have their lamports mutated through the runtime’s lamport choke points; every other account’s lamport mutation is refused with the same Custom(0xD000 | index) error the data-range gate uses. An empty list is valid and means “no lamport mutation anywhere”.

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Undeclared

Lamport writes undeclared: passthrough, not mutation-complete.

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Declared(&'static [u8])

Lamport writes permitted only on the listed account indices.

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impl Clone for LamportPolicy

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for LamportPolicy

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impl Debug for LamportPolicy

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for LamportPolicy

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impl PartialEq for LamportPolicy

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for LamportPolicy

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.