Trait html5ever::tree_builder::TreeSink

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pub trait TreeSink {
    type Handle: Clone;
    type Output;
    type ElemName<'a>: ElemName
       where Self: 'a;

Show 23 methods // Required methods fn finish(self) -> Self::Output; fn parse_error(&self, msg: Cow<'static, str>); fn get_document(&self) -> Self::Handle; fn elem_name<'a>(&'a self, target: &'a Self::Handle) -> Self::ElemName<'a>; fn create_element( &self, name: QualName, attrs: Vec<Attribute>, flags: ElementFlags, ) -> Self::Handle; fn create_comment(&self, text: Tendril<UTF8>) -> Self::Handle; fn create_pi( &self, target: Tendril<UTF8>, data: Tendril<UTF8>, ) -> Self::Handle; fn append(&self, parent: &Self::Handle, child: NodeOrText<Self::Handle>); fn append_based_on_parent_node( &self, element: &Self::Handle, prev_element: &Self::Handle, child: NodeOrText<Self::Handle>, ); fn append_doctype_to_document( &self, name: Tendril<UTF8>, public_id: Tendril<UTF8>, system_id: Tendril<UTF8>, ); fn get_template_contents(&self, target: &Self::Handle) -> Self::Handle; fn same_node(&self, x: &Self::Handle, y: &Self::Handle) -> bool; fn set_quirks_mode(&self, mode: QuirksMode); fn append_before_sibling( &self, sibling: &Self::Handle, new_node: NodeOrText<Self::Handle>, ); fn add_attrs_if_missing(&self, target: &Self::Handle, attrs: Vec<Attribute>); fn remove_from_parent(&self, target: &Self::Handle); fn reparent_children(&self, node: &Self::Handle, new_parent: &Self::Handle); // Provided methods fn mark_script_already_started(&self, _node: &Self::Handle) { ... } fn pop(&self, _node: &Self::Handle) { ... } fn associate_with_form( &self, _target: &Self::Handle, _form: &Self::Handle, _nodes: (&Self::Handle, Option<&Self::Handle>), ) { ... } fn is_mathml_annotation_xml_integration_point( &self, _handle: &Self::Handle, ) -> bool { ... } fn set_current_line(&self, _line_number: u64) { ... } fn complete_script(&self, _node: &Self::Handle) -> NextParserState { ... }
}
Expand description

Methods a parser can use to create the DOM. The DOM provider implements this trait.

Having this as a trait potentially allows multiple implementations of the DOM to be used with the same parser.

Required Associated Types§

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type Handle: Clone

Handle is a reference to a DOM node. The tree builder requires that a Handle implements Clone to get another reference to the same node.

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type Output

The overall result of parsing.

This should default to Self, but default associated types are not stable yet. rust-lang/rust#29661

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type ElemName<'a>: ElemName where Self: 'a

Required Methods§

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fn finish(self) -> Self::Output

Consume this sink and return the overall result of parsing.

TODO:This should default to fn finish(self) -> Self::Output { self }, but default associated types are not stable yet. rust-lang/rust#29661

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fn parse_error(&self, msg: Cow<'static, str>)

Signal a parse error.

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fn get_document(&self) -> Self::Handle

Get a handle to the Document node.

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fn elem_name<'a>(&'a self, target: &'a Self::Handle) -> Self::ElemName<'a>

What is the name of this element?

Should never be called on a non-element node; feel free to panic!.

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fn create_element( &self, name: QualName, attrs: Vec<Attribute>, flags: ElementFlags, ) -> Self::Handle

Create an element.

When creating a template element (name.ns.expanded() == expanded_name!(html "template")), an associated document fragment called the “template contents” should also be created. Later calls to self.get_template_contents() with that given element return it. See the template element in the whatwg spec.

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fn create_comment(&self, text: Tendril<UTF8>) -> Self::Handle

Create a comment node.

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fn create_pi(&self, target: Tendril<UTF8>, data: Tendril<UTF8>) -> Self::Handle

Create a Processing Instruction node.

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fn append(&self, parent: &Self::Handle, child: NodeOrText<Self::Handle>)

Append a node as the last child of the given node. If this would produce adjacent sibling text nodes, it should concatenate the text instead.

The child node will not already have a parent.

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fn append_based_on_parent_node( &self, element: &Self::Handle, prev_element: &Self::Handle, child: NodeOrText<Self::Handle>, )

When the insertion point is decided by the existence of a parent node of the element, we consider both possibilities and send the element which will be used if a parent node exists, along with the element to be used if there isn’t one.

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fn append_doctype_to_document( &self, name: Tendril<UTF8>, public_id: Tendril<UTF8>, system_id: Tendril<UTF8>, )

Append a DOCTYPE element to the Document node.

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fn get_template_contents(&self, target: &Self::Handle) -> Self::Handle

Get a handle to a template’s template contents. The tree builder promises this will never be called with something else than a template element.

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fn same_node(&self, x: &Self::Handle, y: &Self::Handle) -> bool

Do two handles refer to the same node?

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fn set_quirks_mode(&self, mode: QuirksMode)

Set the document’s quirks mode.

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fn append_before_sibling( &self, sibling: &Self::Handle, new_node: NodeOrText<Self::Handle>, )

Append a node as the sibling immediately before the given node.

The tree builder promises that sibling is not a text node. However its old previous sibling, which would become the new node’s previous sibling, could be a text node. If the new node is also a text node, the two should be merged, as in the behavior of append.

NB: new_node may have an old parent, from which it should be removed.

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fn add_attrs_if_missing(&self, target: &Self::Handle, attrs: Vec<Attribute>)

Add each attribute to the given element, if no attribute with that name already exists. The tree builder promises this will never be called with something else than an element.

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fn remove_from_parent(&self, target: &Self::Handle)

Detach the given node from its parent.

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fn reparent_children(&self, node: &Self::Handle, new_parent: &Self::Handle)

Remove all the children from node and append them to new_parent.

Provided Methods§

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fn mark_script_already_started(&self, _node: &Self::Handle)

Mark a HTML <script> as “already started”.

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fn pop(&self, _node: &Self::Handle)

Indicate that a node was popped off the stack of open elements.

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fn associate_with_form( &self, _target: &Self::Handle, _form: &Self::Handle, _nodes: (&Self::Handle, Option<&Self::Handle>), )

Associate the given form-associatable element with the form element

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fn is_mathml_annotation_xml_integration_point( &self, _handle: &Self::Handle, ) -> bool

Returns true if the adjusted current node is an HTML integration point and the token is a start tag.

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fn set_current_line(&self, _line_number: u64)

Called whenever the line number changes.

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fn complete_script(&self, _node: &Self::Handle) -> NextParserState

Indicate that a script element is complete.

Object Safety§

This trait is not object safe.

Implementors§