hugr_core::hugr::persistent::walker

Struct PinnedWire

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

A wire in the current HUGR of a Walker with some of its endpoints pinned.

Just like a normal HUGR Wire, a PinnedWire has endpoints: the ports that are linked together by the wire. A PinnedWire however distinguishes itself in that each of its ports is specified either as “pinned” or “unpinned”. A port is pinned if and only if the node it is attached to is pinned in the walker.

A PinnedWire always has at least one pinned port.

All pinned ports of a PinnedWire can be retrieved using PinnedWire::pinned_inports and PinnedWire::pinned_outport. Unpinned ports, on the other hand, represent undetermined connections, which may still change as the walker is expanded (see Walker::expand).

Whether all incoming or outgoing ports are pinned can be checked using PinnedWire::is_complete.

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impl PinnedWire

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pub fn from_pinned_port( node: PatchNode, port: impl Into<Port>, walker: &Walker<'_>, ) -> Self

Create a new pinned wire in walker from a pinned node and a port.

§Panics

Panics if node is not pinned in walker.

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pub fn is_complete(&self, dir: impl Into<Option<Direction>>) -> bool

Check if all ports on the wire in the given direction are pinned.

A wire is complete in a direction if and only if expanding the wire in that direction would yield no new walkers. If no direction is specified, checks if the wire is complete in both directions.

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pub fn pinned_outport(&self) -> Option<(PatchNode, OutgoingPort)>

Get the outgoing port of the wire, if it is pinned.

Returns None if the outgoing port is not pinned.

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pub fn pinned_inports( &self, ) -> impl Iterator<Item = (PatchNode, IncomingPort)> + '_

Get all pinned incoming ports of the wire.

Returns an iterator over all pinned incoming ports.

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pub fn all_pinned_ports(&self) -> impl Iterator<Item = (PatchNode, Port)> + '_

Get all pinned ports of the wire.

Trait Implementations§

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impl Clone for PinnedWire

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fn clone(&self) -> PinnedWire

Returns a duplicate 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 PinnedWire

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

Formats the value using the given formatter. Read more

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