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ReturnData

Struct ReturnData 

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pub struct ReturnData { /* private fields */ }
Expand description

Return data from a previous CPI call.

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impl ReturnData

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pub fn data(&self) -> &[u8]

Get the return data bytes.

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pub fn program_id(&self) -> &Address

Get the program that set the return data.

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pub fn len(&self) -> usize

Length of the return data.

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pub fn is_empty(&self) -> bool

Whether the return data is empty.

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pub fn as_type<T: Projectable>(&self) -> Result<&T, ProgramError>

Interpret the return data as a Projectable type.

Returns Err(AccountDataTooSmall) if the return data is smaller than size_of::<T>().

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pub fn as_u64(&self) -> Result<u64, ProgramError>

Read a u64 from the first 8 bytes of return data.

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pub fn as_u32(&self) -> Result<u32, ProgramError>

Read a u32 from the first 4 bytes of return data.

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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> 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 = Infallible

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

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.