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OperationTable

Struct OperationTable 

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

256-entry selector dispatch table.

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impl OperationTable

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pub fn new() -> Self

Create an empty 256-entry table.

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pub fn register( &mut self, selector: u8, name: impl Into<String>, func: OpFn, arg: OpArg, )

Register an operation at a raw byte selector.

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pub fn register_word( &mut self, selector: SelectorWord, name: impl Into<String>, func: OpFn, arg: OpArg, )

Register using a 4/4/8 selector word.

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pub fn execute(&self, selector: u8, frame: OpFrame) -> DispatchResult<OpFrame>

Execute by raw selector.

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pub fn execute_word( &self, selector: SelectorWord, frame: OpFrame, ) -> DispatchResult<OpFrame>

Execute by selector word. Runtime uses the low 8 function bits as the table index.

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pub fn execute_or_nop(&self, selector: u8, frame: OpFrame) -> OpFrame

Execute a selector without a branch in user code by falling back to NOP for missing entries.

This still uses an internal Option branch; use it as an ergonomic hot-loop shape, not a hard side-channel guarantee.

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pub fn contains(&self, selector: u8) -> bool

Return true when an entry is registered.

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impl Clone for OperationTable

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for OperationTable

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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 Default for OperationTable

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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> 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 = !

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

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.