Struct sp_core::offchain::Capabilities

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pub struct Capabilities { /* private fields */ }

Expand description

Execution context extra capabilities.

Implementations

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impl Capabilities

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pub const TRANSACTION_POOL: Self

Access to transaction pool.

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pub const HTTP: Self

External http calls.

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pub const KEYSTORE: Self

Keystore access.

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pub const RANDOMNESS: Self

Randomness source.

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pub const NETWORK_STATE: Self

Access to opaque network state.

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pub const OFFCHAIN_DB_READ: Self

Access to offchain worker DB (read only).

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pub const OFFCHAIN_DB_WRITE: Self

Access to offchain worker DB (writes).

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pub const NODE_AUTHORIZATION: Self

Manage the authorized nodes

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pub const TIME: Self

Access time related functionality

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pub const fn empty() -> Self

Returns an empty set of flags.

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pub const fn all() -> Self

Returns the set containing all flags.

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pub const fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

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pub const fn from_bits(bits: u32) -> Option<Self>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

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pub const fn from_bits_truncate(bits: u32) -> Self

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

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pub const unsafe fn from_bits_unchecked(bits: u32) -> Self

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

Safety

The caller of the bitflags! macro can chose to allow or disallow extra bits for their bitflags type.

The caller of from_bits_unchecked() has to ensure that all bits correspond to a defined flag or that extra bits are valid for this bitflags type.

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pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

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pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

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pub const fn intersects(&self, other: Self) -> bool

Returns true if there are flags common to both self and other.

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pub const fn contains(&self, other: Self) -> bool

Returns true if all of the flags in other are contained within self.

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pub fn insert(&mut self, other: Self)

Inserts the specified flags in-place.

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pub fn remove(&mut self, other: Self)

Removes the specified flags in-place.

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pub fn toggle(&mut self, other: Self)

Toggles the specified flags in-place.

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pub fn set(&mut self, other: Self, value: bool)

Inserts or removes the specified flags depending on the passed value.

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pub const fn intersection(self, other: Self) -> Self

Returns the intersection between the flags in self and other.

Specifically, the returned set contains only the flags which are present in both self and other.

This is equivalent to using the & operator (e.g. ops::BitAnd), as in flags & other.

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pub const fn union(self, other: Self) -> Self

Returns the union of between the flags in self and other.

Specifically, the returned set contains all flags which are present in either self or other, including any which are present in both (see Self::symmetric_difference if that is undesirable).

This is equivalent to using the | operator (e.g. ops::BitOr), as in flags | other.

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pub const fn difference(self, other: Self) -> Self

Returns the difference between the flags in self and other.

Specifically, the returned set contains all flags present in self, except for the ones present in other.

It is also conceptually equivalent to the “bit-clear” operation: flags & !other (and this syntax is also supported).

This is equivalent to using the - operator (e.g. ops::Sub), as in flags - other.

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pub const fn symmetric_difference(self, other: Self) -> Self

Returns the symmetric difference between the flags in self and other.

Specifically, the returned set contains the flags present which are present in self or other, but that are not present in both. Equivalently, it contains the flags present in exactly one of the sets self and other.

This is equivalent to using the ^ operator (e.g. ops::BitXor), as in flags ^ other.

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pub const fn complement(self) -> Self

Returns the complement of this set of flags.

Specifically, the returned set contains all the flags which are not set in self, but which are allowed for this type.

Alternatively, it can be thought of as the set difference between Self::all() and self (e.g. Self::all() - self)

This is equivalent to using the ! operator (e.g. ops::Not), as in !flags.

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impl Capabilities

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pub fn rich_offchain_call() -> Self

Return capabilities for rich offchain calls.

Those calls should be allowed to sign and submit transactions and access offchain workers database (but read only!).

Trait Implementations

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impl Binary for Capabilities

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

Formats the value using the given formatter.

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impl BitAnd<Capabilities> for Capabilities

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

Returns the intersection between the two sets of flags.

type Output = Self

The resulting type after applying the & operator.

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impl BitAndAssign<Capabilities> for Capabilities

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fn bitand_assign(&mut self, other: Self)

Disables all flags disabled in the set.

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impl BitOr<Capabilities> for Capabilities

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fn bitor(self, other: Capabilities) -> Self

Returns the union of the two sets of flags.

type Output = Self

The resulting type after applying the | operator.

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impl BitOrAssign<Capabilities> for Capabilities

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fn bitor_assign(&mut self, other: Self)

Adds the set of flags.

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impl BitXor<Capabilities> for Capabilities

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

Returns the left flags, but with all the right flags toggled.

type Output = Self

The resulting type after applying the ^ operator.

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impl BitXorAssign<Capabilities> for Capabilities

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fn bitxor_assign(&mut self, other: Self)

Toggles the set of flags.

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impl Clone for Capabilities

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fn clone(&self) -> Capabilities

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 Debug for Capabilities

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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 Extend<Capabilities> for Capabilities

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fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator. Read more

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fn extend_one(&mut self, item: A)

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

Extends a collection with exactly one element.

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fn extend_reserve(&mut self, additional: usize)

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

Reserves capacity in a collection for the given number of additional elements. Read more

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impl FromIterator<Capabilities> for Capabilities

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fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

Creates a value from an iterator. Read more

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impl Hash for Capabilities

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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 LowerHex for Capabilities

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

Formats the value using the given formatter.

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impl Not for Capabilities

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fn not(self) -> Self

Returns the complement of this set of flags.

type Output = Self

The resulting type after applying the ! operator.

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impl Octal for Capabilities

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

Formats the value using the given formatter.

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impl Ord for Capabilities

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fn cmp(&self, other: &Capabilities) -> 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<Capabilities> for Capabilities

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

This method tests for !=.

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impl PartialOrd<Capabilities> for Capabilities

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fn partial_cmp(&self, other: &Capabilities) -> 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 Sub<Capabilities> for Capabilities

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

Returns the set difference of the two sets of flags.

type Output = Self

The resulting type after applying the - operator.

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impl SubAssign<Capabilities> for Capabilities

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fn sub_assign(&mut self, other: Self)

Disables all flags enabled in the set.

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impl UpperHex for Capabilities

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

Formats the value using the given formatter.

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impl StructuralPartialEq for Capabilities

Auto Trait Implementations

impl RefUnwindSafe for Capabilities

impl Send for Capabilities

impl Sync for Capabilities

impl Unpin for Capabilities

impl UnwindSafe for Capabilities

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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> Downcast for T where
T: Any,

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pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

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pub fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

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pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

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impl<T> DowncastSync for T where
T: Any + Send + Sync,

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pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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