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VirtualPermutation

cqlib_core::compile::transform::virtual_permutation

Struct VirtualPermutation 

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

Output-wire permutation accumulated while logical SWAPs are removed.

Each entry maps an output qubit in the original circuit to the output wire carrying that state in the rewritten circuit. Inputs remain identity-mapped; this permutation affects output interpretation only.

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impl VirtualPermutation

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pub fn identity(qubits: impl IntoIterator<Item = Qubit>) -> Self

Creates the identity output permutation for qubits.

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pub fn rewritten_output( &self, original_output: LogicalQubit, ) -> Option<LogicalQubit>

Returns the rewritten output wire carrying original_output.

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pub fn original_output_to_rewritten_output( &self, ) -> &BTreeMap<LogicalQubit, LogicalQubit>

Returns the complete original-output-to-rewritten-output mapping.

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pub fn is_identity(&self) -> bool

Returns whether this output permutation is the identity.

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pub fn compose_final_layout( &self, rewritten_final_layout: &Layout, ) -> Result<Layout, CompilerError>

Composes this output permutation with a routed final layout.

rewritten_final_layout maps rewritten circuit outputs to physical qubits. The returned layout maps original circuit outputs to those same physical qubits:

final(original) = rewritten_final_layout(permutation(original))
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Returns CompilerError::InvalidInput when the supplied layout does not map every rewritten output represented by this permutation.

Trait Implementations§

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impl Clone for VirtualPermutation

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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 VirtualPermutation

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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 VirtualPermutation

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fn default() -> Self

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

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impl PartialEq for VirtualPermutation

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for VirtualPermutation

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Immutably borrows from an owned value. Read more
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impl<T> ByRef<T> for T

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fn by_ref(&self) -> &T

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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)
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where Self: Into<T>,

Converts self into T using Into<T>. Read more
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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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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<Q, K> Equivalent<K> for Q
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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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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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Returns the argument unchanged.

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Calls U::from(self).

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

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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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const ALIGN: usize

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type Init = T

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Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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