pub struct DomRefCell<T> {
    value: RefCell<T>,
}
Expand description

A mutable field in the DOM.

This extends the API of std::cell::RefCell to allow unsafe access in certain situations, with dynamic checking in debug builds.

Fields

value: RefCell<T>

Implementations

Return a reference to the contents.

For use in the layout thread only.

Borrow the contents for the purpose of script deallocation.

Mutably borrow a cell for layout. Ideally this would use RefCell::try_borrow_mut_unguarded but that doesn’t exist yet.

Create a new DomRefCell containing value.

Immutably borrows the wrapped value.

The borrow lasts until the returned Ref exits scope. Multiple immutable borrows can be taken out at the same time.

Panics

Panics if this is called off the script thread.

Panics if the value is currently mutably borrowed.

Mutably borrows the wrapped value.

The borrow lasts until the returned RefMut exits scope. The value cannot be borrowed while this borrow is active.

Panics

Panics if this is called off the script thread.

Panics if the value is currently borrowed.

Attempts to immutably borrow the wrapped value.

The borrow lasts until the returned Ref exits scope. Multiple immutable borrows can be taken out at the same time.

Returns None if the value is currently mutably borrowed.

Panics

Panics if this is called off the script thread.

Mutably borrows the wrapped value.

The borrow lasts until the returned RefMut exits scope. The value cannot be borrowed while this borrow is active.

Returns None if the value is currently borrowed.

Panics

Panics if this is called off the script thread.

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

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

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
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.

Convert
Convert
The alignment of pointer.
The type for initializers.
Initializes a with the given initializer. Read more
Dereferences the given pointer. Read more
Mutably dereferences the given pointer. Read more
Drops the object pointed to by the given pointer. Read more
Read this value from the supplied reader. Same as ReadEndian::read_from_little_endian().
Read this value from the supplied reader. Same as ReadEndian::read_from_big_endian().
Read this value from the supplied reader. Same as ReadEndian::read_from_native_endian().
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