Struct wasmer_types::entity::packed_option::PackedOption

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pub struct PackedOption<T: ReservedValue>(_);

Expand description

Packed representation of Option<T>.

Implementations

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impl<T: ReservedValue> PackedOption<T>

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pub fn is_none(&self) -> bool

Returns true if the packed option is a None value.

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pub fn is_some(&self) -> bool

Returns true if the packed option is a Some value.

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pub fn expand(self) -> Option<T>

Expand the packed option into a normal Option.

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pub fn map<U, F>(self, f: F) -> Option where
F: FnOnce(T) -> U,

Maps a PackedOption<T> to Option by applying a function to a contained value.

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pub fn unwrap(self) -> T

Unwrap a packed Some value or panic.

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pub fn expect(self, msg: &str) -> T

Unwrap a packed Some value or panic.

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pub fn take(&mut self) -> Option<T>

Takes the value out of the packed option, leaving a None in its place.

Trait Implementations

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impl<T: Clone + ReservedValue> Clone for PackedOption<T>

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fn clone(&self) -> PackedOption<T>

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<T> Debug for PackedOption<T> where
T: ReservedValue + Debug,

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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<T: ReservedValue> Default for PackedOption<T>

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fn default() -> Self

Create a default packed option representing None.

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impl<'de, T: ReservedValue> Deserialize<'de> for PackedOption<T> where
T: Deserialize<'de>,

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

Deserialize this value from the given Serde deserializer. Read more

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impl<T: ReservedValue> From<Option<T>> for PackedOption<T>

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fn from(opt: Option<T>) -> Self

Convert an option into its packed equivalent.

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impl<T: ReservedValue> From<T> for PackedOption<T>

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fn from(t: T) -> Self

Convert t into a packed Some(x).

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impl<T: Hash + ReservedValue> Hash for PackedOption<T>

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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<T: ReservedValue> Into<Option<T>> for PackedOption<T>

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fn into(self) -> Option<T>

Performs the conversion.

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impl<T: Ord + ReservedValue> Ord for PackedOption<T>

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fn cmp(&self, other: &PackedOption<T>) -> Ordering

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

1.21.0 · source

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<T: PartialEq + ReservedValue> PartialEq<PackedOption<T>> for PackedOption<T>

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fn eq(&self, other: &PackedOption<T>) -> 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: &PackedOption<T>) -> bool

This method tests for !=.

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impl<T: PartialOrd + ReservedValue> PartialOrd<PackedOption<T>> for PackedOption<T>

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

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

1.0.0 · source

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

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

1.0.0 · source

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

1.0.0 · source

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<T: ReservedValue> Serialize for PackedOption<T> where
T: Serialize,

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

Serialize this value into the given Serde serializer. Read more

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impl<T: ReservedValue> StructuralPartialEq for PackedOption<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for PackedOption<T> where
T: RefUnwindSafe,

impl<T> Send for PackedOption<T> where
T: Send,

impl<T> Sync for PackedOption<T> where
T: Sync,

impl<T> Unpin for PackedOption<T> where
T: Unpin,

impl<T> UnwindSafe for PackedOption<T> where
T: UnwindSafe,

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> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

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fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> CallHasher for T where
T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

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impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
 W: DeserializeWith<F, T, D>,
 D: Fallible + ?Sized,
 F: ?Sized,

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fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

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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

Compare self to key and return true if they are equal.

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impl<T> From<!> for T

const: unstable · source

fn from(t: !) -> T

Performs the conversion.

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

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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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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)

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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Struct wasmer_types::entity::packed_option::PackedOption

Implementations

impl<T: ReservedValue> PackedOption<T>

pub fn is_none(&self) -> bool

pub fn is_some(&self) -> bool

pub fn expand(self) -> Option<T>

pub fn map<U, F>(self, f: F) -> Option<U> where F: FnOnce(T) -> U,

pub fn unwrap(self) -> T

pub fn expect(self, msg: &str) -> T

pub fn take(&mut self) -> Option<T>

Trait Implementations

impl<T: Clone + ReservedValue> Clone for PackedOption<T>

fn clone(&self) -> PackedOption<T>

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

impl<T> Debug for PackedOption<T> where T: ReservedValue + Debug,

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

impl<T: ReservedValue> Default for PackedOption<T>

fn default() -> Self

impl<'de, T: ReservedValue> Deserialize<'de> for PackedOption<T> where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where __D: Deserializer<'de>,

impl<T: ReservedValue> From<Option<T>> for PackedOption<T>

fn from(opt: Option<T>) -> Self

impl<T: ReservedValue> From<T> for PackedOption<T>

fn from(t: T) -> Self

impl<T: Hash + ReservedValue> Hash for PackedOption<T>

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

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

impl<T: ReservedValue> Into<Option<T>> for PackedOption<T>

fn into(self) -> Option<T>

impl<T: Ord + ReservedValue> Ord for PackedOption<T>

fn cmp(&self, other: &PackedOption<T>) -> Ordering

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

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

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

impl<T: PartialEq + ReservedValue> PartialEq<PackedOption<T>> for PackedOption<T>

fn eq(&self, other: &PackedOption<T>) -> bool

fn ne(&self, other: &PackedOption<T>) -> bool

impl<T: PartialOrd + ReservedValue> PartialOrd<PackedOption<T>> for PackedOption<T>

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

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

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

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

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

impl<T: ReservedValue> Serialize for PackedOption<T> where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where __S: Serializer,

impl<T: Copy + ReservedValue> Copy for PackedOption<T>

impl<T: Eq + ReservedValue> Eq for PackedOption<T>

impl<T: ReservedValue> StructuralEq for PackedOption<T>

impl<T: ReservedValue> StructuralPartialEq for PackedOption<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for PackedOption<T> where T: RefUnwindSafe,

impl<T> Send for PackedOption<T> where T: Send,

impl<T> Sync for PackedOption<T> where T: Sync,

impl<T> Unpin for PackedOption<T> where T: Unpin,

impl<T> UnwindSafe for PackedOption<T> where T: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> ArchivePointee for T

type ArchivedMetadata = ()

fn pointer_metadata( &<T as ArchivePointee>::ArchivedMetadata) -> <T as Pointee>::Metadata

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> CallHasher for T where T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where H: Hash + ?Sized, B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

fn deserialize( &self, deserializer: &mut D) -> Result<With<T, W>, <D as Fallible>::Error>

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

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

impl<T> From<!> for T

fn from(t: !) -> T

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> Pointee for T

type Metadata = ()

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

pub fn map<U, F>(self, f: F) -> Option<U> where
F: FnOnce(T) -> U,

impl<T> Debug for PackedOption<T> where
T: ReservedValue + Debug,

impl<'de, T: ReservedValue> Deserialize<'de> for PackedOption<T> where
T: Deserialize<'de>,

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

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

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

impl<T: ReservedValue> Serialize for PackedOption<T> where
T: Serialize,

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

impl<T> RefUnwindSafe for PackedOption<T> where
T: RefUnwindSafe,

impl<T> Send for PackedOption<T> where
T: Send,

impl<T> Sync for PackedOption<T> where
T: Sync,

impl<T> Unpin for PackedOption<T> where
T: Unpin,

impl<T> UnwindSafe for PackedOption<T> where
T: UnwindSafe,

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

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T> CallHasher for T where
T: Hash + ?Sized,

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64 where
H: Hash + ?Sized,
B: BuildHasher,

impl<F, W, T, D> Deserialize<With<T, W>, D> for F where
W: DeserializeWith<F, T, D>,
D: Fallible + ?Sized,
F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

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

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

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

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

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

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