liblisa::value

Enum Value

pub enum Value<'a> {
    Num(u64),
    Bytes(&'a [u8]),
}
Expand description

A values that stores its byte data as a &[u8].

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Num(u64)

An integer value.

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Bytes(&'a [u8])

Byte data

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impl Value<'_>

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

Converts the value to little-endian bytes.

pub fn select_byte(&self, index: usize) -> u8

Returns the byte at position index in the value. For integers, returns (val >> (index * 8)) as u8

pub fn slice(&self, size: Size) -> Self

Slices the value to include only the area in size.

pub fn xor<T>(&self, b: &Value<'_>, f: impl FnMut(&Value<'_>) -> T) -> T

Computes the XOR of this value and b. The result is provided to f.

pub fn or<T>(&self, b: &Value<'_>, f: impl FnMut(&Value<'_>) -> T) -> T

Computes the OR of this value and b. The result is provided to f.

pub fn and<T>(&self, b: &Value<'_>, f: impl FnMut(&Value<'_>) -> T) -> T

Computes the AND of this value and b. The result is provided to f.

Trait Implementations§

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impl AsValue for Value<'_>

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fn as_value(&self) -> Value<'_>

Returns a reference to the value as a Value.
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fn unwrap_num(&self) -> u64

If the value is an integer, returns the integer. Otherwise, panics.
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fn unwrap_bytes(&self) -> &[u8]

If the value is Byte data, returns a reference to the bytestring. Otherwise, panics.
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fn interpret_as_bool(&self) -> bool

If the value is an integer, returns true if and only if the integer is non-zero. Otherwise, panics.
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fn to_owned_value(&self) -> OwnedValue

Converts the value to an OwnedValue.
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impl<'a> Clone for Value<'a>

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fn clone(&self) -> Value<'a>

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
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impl Debug for Value<'_>

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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 Equivalent<OwnedValue> for Value<'_>

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fn equivalent(&self, key: &OwnedValue) -> bool

Checks if this value is equivalent to the given key. Read more
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impl Equivalent<Value<'_>> for OwnedValue

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fn equivalent(&self, key: &Value<'_>) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<'a> From<Value<'a>> for OwnedValue

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fn from(value: Value<'a>) -> Self

Converts to this type from the input type.
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impl<'a> Hash for Value<'a>

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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, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq<OwnedValue> for Value<'_>

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> PartialEq<Value<'a>> for OwnedValue

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fn eq(&self, other: &Value<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> PartialEq for Value<'a>

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fn eq(&self, other: &Value<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl UpperHex for Value<'_>

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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<'a> Copy for Value<'a>

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impl<'a> Eq for Value<'a>

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impl<'a> StructuralPartialEq for Value<'a>

Auto Trait Implementations§

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impl<'a> Freeze for Value<'a>

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impl<'a> RefUnwindSafe for Value<'a>

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impl<'a> Send for Value<'a>

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impl<'a> Sync for Value<'a>

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impl<'a> Unpin for Value<'a>

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impl<'a> UnwindSafe for Value<'a>

Blanket Implementations§

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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, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. 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, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = W::MAKE

A constant of the type witness
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impl<T> Identity for T
where T: ?Sized,

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.
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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).
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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V