pub struct OpaqueNode(pub usize);
Expand description

An opaque handle to a node, which, unlike UnsafeNode, cannot be transformed back into a non-opaque representation. The only safe operation that can be performed on this node is to compare it to another opaque handle or to another OpaqueNode.

Layout and Graphics use this to safely represent nodes for comparison purposes. Because the script task’s GC does not trace layout, node data cannot be safely stored in layout data structures. Also, layout code tends to be faster when the DOM is not being accessed, for locality reasons. Using OpaqueNode enforces this invariant.

Tuple Fields

0: usize

Implementations

Returns the address of this node, for debugging purposes.

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Deserialize this value from the given Serde deserializer. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
Serialize this value into the given Serde serializer. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Compare self to key and return true if they are equal.

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

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

Should always be Self
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more