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Introduce trait Castable
This trait is used to hold onto the downcast and upcast functions of all castable IDL interfaces. A castable IDL interface is one which either derives from or is derived by other interfaces. The deriving relation is represented by implementations of marker trait DerivedFrom<T: Castable> generated in InheritTypes. /^[ ]*use dom::bindings::codegen::InheritTypes::.*(Base|Cast|Derived)/ { /::[a-zA-Z]+(Base|Cast|Derived);/d s/([{ ])[a-zA-Z]+(Base|Cast|Derived), /\1/g s/([{ ])[a-zA-Z]+(Base|Cast|Derived), /\1/g s/, [a-zA-Z]+(Base|Cast|Derived)([},])/\2/g s/, [a-zA-Z]+(Base|Cast|Derived)([},])/\2/g /\{([a-zA-Z]+(Base|Cast|Derived))?\};$/d s/\{([a-zA-Z_]+)\};$/\1;/ } s/([a-zA-Z]+)Cast::from_ref\(\&?\**([a-zA-Z_]+)(\.r\(\))?\)/\2.upcast::<\1>()/g s/([a-zA-Z]+)Cast::from_ref\(\&?\**([a-zA-Z_]+)(\.[a-zA-Z_]+\(\))?\)/\2\3.upcast::<\1>()/g s/\(([a-zA-Z]+)Cast::from_ref\)/\(Castable::upcast::<\1>\)/g s/([a-zA-Z]+)Cast::from_root/Root::upcast::<\1>/g s/([a-zA-Z]+)Cast::from_layout_js\(\&([a-zA-Z_.]+)\)/\2.upcast::<\1>()/g s/([a-zA-Z]+)Cast::to_ref\(\&?\**([a-zA-Z_]+)(\.r\(\))?\)/\2.downcast::<\1>()/g s/([a-zA-Z]+)Cast::to_ref\(\&?\**([a-zA-Z_]+)(\.[a-zA-Z_]+\(\))?\)/\2\3.downcast::<\1>()/g s/\(([a-zA-Z]+)Cast::to_ref\)/\(Castable::downcast::<\1>\)/g s/([a-zA-Z]+)Cast::to_root/Root::downcast::<\1>/g s/([a-zA-Z]+)Cast::to_layout_js\(&?([a-zA-Z_.]+(\(\))?)\)/\2.downcast::<\1>()/g s/\.is_document\(\)/.is::<Document>()/g s/\.is_htmlanchorelement\(\)/.is::<HTMLAnchorElement>()/g s/\.is_htmlappletelement\(\)/.is::<HTMLAppletElement>()/g s/\.is_htmlareaelement\(\)/.is::<HTMLAreaElement>()/g s/\.is_htmlbodyelement\(\)/.is::<HTMLBodyElement>()/g s/\.is_htmlembedelement\(\)/.is::<HTMLEmbedElement>()/g s/\.is_htmlfieldsetelement\(\)/.is::<HTMLFieldSetElement>()/g s/\.is_htmlformelement\(\)/.is::<HTMLFormElement>()/g s/\.is_htmlframesetelement\(\)/.is::<HTMLFrameSetElement>()/g s/\.is_htmlhtmlelement\(\)/.is::<HTMLHtmlElement>()/g s/\.is_htmlimageelement\(\)/.is::<HTMLImageElement>()/g s/\.is_htmllegendelement\(\)/.is::<HTMLLegendElement>()/g s/\.is_htmloptgroupelement\(\)/.is::<HTMLOptGroupElement>()/g s/\.is_htmloptionelement\(\)/.is::<HTMLOptionElement>()/g s/\.is_htmlscriptelement\(\)/.is::<HTMLScriptElement>()/g s/\.is_htmltabledatacellelement\(\)/.is::<HTMLTableDataCellElement>()/g s/\.is_htmltableheadercellelement\(\)/.is::<HTMLTableHeaderCellElement>()/g s/\.is_htmltablerowelement\(\)/.is::<HTMLTableRowElement>()/g s/\.is_htmltablesectionelement\(\)/.is::<HTMLTableSectionElement>()/g s/\.is_htmltitleelement\(\)/.is::<HTMLTitleElement>()/g
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82 changed files with 1124 additions and 1148 deletions
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@ -7,10 +7,10 @@ use dom::attr::{Attr, AttrValue};
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::HTMLFontElementBinding;
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use dom::bindings::codegen::Bindings::HTMLFontElementBinding::HTMLFontElementMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast};
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use dom::bindings::conversions::Castable;
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use dom::bindings::js::Root;
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use dom::document::Document;
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use dom::element::{AttributeMutation, RawLayoutElementHelpers};
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use dom::element::{AttributeMutation, Element, RawLayoutElementHelpers};
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use dom::htmlelement::HTMLElement;
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use dom::node::Node;
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use dom::virtualmethods::VirtualMethods;
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@ -63,7 +63,7 @@ impl HTMLFontElementMethods for HTMLFontElement {
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// https://html.spec.whatwg.org/multipage/#dom-font-size
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fn SetSize(&self, value: DOMString) {
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let element = ElementCast::from_ref(self);
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let element = self.upcast::<Element>();
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let length = parse_length(&value);
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element.set_attribute(&Atom::from_slice("size"), AttrValue::Length(value, length));
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}
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@ -71,7 +71,7 @@ impl HTMLFontElementMethods for HTMLFontElement {
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impl VirtualMethods for HTMLFontElement {
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fn super_type(&self) -> Option<&VirtualMethods> {
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let htmlelement = HTMLElementCast::from_ref(self);
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let htmlelement = self.upcast::<HTMLElement>();
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Some(htmlelement as &VirtualMethods)
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}
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@ -122,7 +122,7 @@ impl HTMLFontElement {
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#[allow(unsafe_code)]
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pub fn get_size(&self) -> Option<specified::Length> {
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unsafe {
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ElementCast::from_ref(self)
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self.upcast::<Element>()
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.get_attr_for_layout(&ns!(""), &atom!("size"))
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.and_then(AttrValue::as_length)
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.cloned()
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