Struct casper_types::CLValue[−][src]

pub struct CLValue { /* fields omitted */ }

Expand description

A Casper value, i.e. a value which can be stored and manipulated by smart contracts.

It holds the underlying data as a type-erased, serialized Vec<u8> and also holds the CLType of the underlying data as a separate member.

Implementations

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impl CLValue

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pub fn from_t<T: CLTyped + ToBytes>(t: T) -> Result<CLValue, CLValueError>

Constructs a CLValue from t.

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pub fn into_t<T: CLTyped + FromBytes>(self) -> Result<T, CLValueError>

Consumes and converts self back into its underlying type.

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pub fn unit() -> Self

A convenience method to create CLValue for a unit.

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pub fn cl_type(&self) -> &CLType

The CLType of the underlying data.

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pub fn inner_bytes(&self) -> &Vec<u8>

Returns a reference to the serialized form of the underlying value held in this CLValue.

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pub fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> yielded after calling self.to_bytes().

Note, this method doesn’t actually serialize self, and hence is relatively cheap.

Trait Implementations

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impl Clone for CLValue

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fn clone(&self) -> CLValue

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl DataSize for CLValue

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const IS_DYNAMIC: bool

If true, the type has a heap size that can vary at runtime, depending on the actual value.

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const STATIC_HEAP_SIZE: usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound. Read more

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fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value. Read more

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impl Debug for CLValue

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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<'de> Deserialize<'de> for CLValue

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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer. Read more

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impl FromBytes for CLValue

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fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), Error>

Deserializes the slice into Self.

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fn from_vec(bytes: Vec<u8>) -> Result<(Self, Vec<u8>), Error>

Deserializes the Vec<u8> into Self.

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impl Hash for CLValue

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more

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fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher,

Feeds a slice of this type into the given Hasher. Read more

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impl Ord for CLValue

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fn cmp(&self, other: &CLValue) -> Ordering

This method returns an Ordering between self and other. Read more

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fn max(self, other: Self) -> Self

Compares and returns the maximum of two values. Read more

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fn min(self, other: Self) -> Self

Compares and returns the minimum of two values. Read more

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fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval. Read more

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impl PartialEq<CLValue> for CLValue

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl PartialOrd<CLValue> for CLValue

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fn partial_cmp(&self, other: &CLValue) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

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

This method tests less than (for self and other) and is used by the < operator. Read more

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

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

This method tests greater than (for self and other) and is used by the > operator. Read more

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

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impl Serialize for CLValue

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fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer. Read more

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impl ToBytes for CLValue

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fn to_bytes(&self) -> Result<Vec<u8>, Error>

Serializes &self to a Vec<u8>.

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fn into_bytes(self) -> Result<Vec<u8>, Error>

Consumes self and serializes to a Vec<u8>.

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fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> which would be returned from a successful call to to_bytes() or into_bytes(). The data is not actually serialized, so this call is relatively cheap. Read more

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impl Eq for CLValue

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impl StructuralEq for CLValue

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impl StructuralPartialEq for CLValue

Auto Trait Implementations

impl RefUnwindSafe for CLValue

impl Send for CLValue

impl Sync for CLValue

impl Unpin for CLValue

impl UnwindSafe for CLValue

Blanket Implementations

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

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

Mutably borrows from an owned value. Read more

impl<T> Conv for T

fn conv<T>(self) -> T where
    Self: Into<T>,

Converts self into a target type. Read more

impl<T> FmtForward for T

fn fmt_binary(self) -> FmtBinary<Self> where
    Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.

fn fmt_display(self) -> FmtDisplay<Self> where
    Self: Display,

Causes self to use its Display implementation when Debug-formatted. Read more

fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
    Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted. Read more

fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
    Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted. Read more

fn fmt_octal(self) -> FmtOctal<Self> where
    Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.

fn fmt_pointer(self) -> FmtPointer<Self> where
    Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted. Read more

fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
    Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted. Read more

fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
    Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted. Read more

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impl<T> From<T> for T

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

impl<T> Pipe for T

fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R

Pipes a value into a function that cannot ordinarily be called in suffix position. Read more

impl<T> PipeAsRef for T

fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: AsRef<T>,
    R: 'a,
    T: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_as_mut<'a, T, R>(&'a mut self, func: impl FnOnce(&'a mut T) -> R) -> R where
    Self: AsMut<T>,
    R: 'a,
    T: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeBorrow for T

fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
    Self: Borrow<T>,
    R: 'a,
    T: 'a,

Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more

fn pipe_borrow_mut<'a, T, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut T) -> R
) -> R where
    Self: BorrowMut<T>,
    R: 'a,
    T: 'a,

Pipes a trait mutable borrow into a function that cannot normally be called in suffix position. Read more

impl<T> PipeDeref for T

fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
    Self: Deref,
    R: 'a,

Pipes a dereference into a function that cannot normally be called in suffix position. Read more

fn pipe_deref_mut<'a, R>(
    &'a mut self, 
    func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
    Self: DerefMut,
    R: 'a,

Pipes a mutable dereference into a function that cannot normally be called in suffix position. Read more

impl<T> PipeRef for T

fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
    R: 'a,

Pipes a reference into a function that cannot ordinarily be called in suffix position. Read more

fn pipe_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
    R: 'a,

Pipes a mutable reference into a function that cannot ordinarily be called in suffix position. Read more

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> Tap for T

fn tap<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R,

Provides immutable access for inspection. Read more

fn tap_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&Self) -> R,

Calls tap in debug builds, and does nothing in release builds.

fn tap_mut<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R,

Provides mutable access for modification. Read more

fn tap_mut_dbg<F, R>(self, func: F) -> Self where
    F: FnOnce(&mut Self) -> R,

Calls tap_mut in debug builds, and does nothing in release builds.

impl<T, U> TapAsRef<U> for T where
    U: ?Sized,

fn tap_ref<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R,

Provides immutable access to the reference for inspection.

fn tap_ref_dbg<F, R>(self, func: F) -> Self where
    Self: AsRef<T>,
    F: FnOnce(&T) -> R,

Calls tap_ref in debug builds, and does nothing in release builds.

fn tap_ref_mut<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R,

Provides mutable access to the reference for modification.

fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: AsMut<T>,
    F: FnOnce(&mut T) -> R,

Calls tap_ref_mut in debug builds, and does nothing in release builds.

impl<T, U> TapBorrow<U> for T where
    U: ?Sized,

fn tap_borrow<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R,

Provides immutable access to the borrow for inspection. Read more

fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
    Self: Borrow<T>,
    F: FnOnce(&T) -> R,

Calls tap_borrow in debug builds, and does nothing in release builds.

fn tap_borrow_mut<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R,

Provides mutable access to the borrow for modification.

fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
    Self: BorrowMut<T>,
    F: FnOnce(&mut T) -> R,

Calls tap_borrow_mut in debug builds, and does nothing in release builds. Read more

impl<T> TapDeref for T

fn tap_deref<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R,

Immutably dereferences self for inspection.

fn tap_deref_dbg<F, R>(self, func: F) -> Self where
    Self: Deref,
    F: FnOnce(&Self::Target) -> R,

Calls tap_deref in debug builds, and does nothing in release builds.

fn tap_deref_mut<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R,

Mutably dereferences self for modification.

fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
    Self: DerefMut,
    F: FnOnce(&mut Self::Target) -> R,

Calls tap_deref_mut in debug builds, and does nothing in release builds. Read more

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impl<T> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> TryConv for T

fn try_conv<T>(self) -> Result<T, Self::Error> where
    Self: TryInto<T>,

Attempts to convert self into a target type. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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pub 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>,

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

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,

pub fn vzip(self) -> V

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impl<T> DeserializeOwned for T where
    T: for<'de> Deserialize<'de>,