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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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@ -4,9 +4,10 @@
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use dom::bindings::codegen::Bindings::HTMLMetaElementBinding;
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use dom::bindings::codegen::Bindings::HTMLMetaElementBinding::HTMLMetaElementMethods;
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use dom::bindings::codegen::InheritTypes::{ElementCast, HTMLElementCast, NodeCast};
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use dom::bindings::conversions::Castable;
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use dom::bindings::js::{Root, RootedReference};
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use dom::document::Document;
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use dom::element::Element;
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use dom::htmlelement::HTMLElement;
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use dom::node::{Node, window_from_node};
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use dom::virtualmethods::VirtualMethods;
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@ -38,7 +39,7 @@ impl HTMLMetaElement {
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}
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fn process_attributes(&self) {
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let element = ElementCast::from_ref(self);
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let element = self.upcast::<Element>();
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if let Some(name) = element.get_attribute(&ns!(""), &atom!("name")).r() {
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let name = name.value().to_ascii_lowercase();
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let name = name.trim_matches(HTML_SPACE_CHARACTERS);
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@ -51,12 +52,12 @@ impl HTMLMetaElement {
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}
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fn translate_viewport(&self) {
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let element = ElementCast::from_ref(self);
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let element = self.upcast::<Element>();
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if let Some(content) = element.get_attribute(&ns!(""), &atom!("content")).r() {
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let content = content.value();
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if !content.is_empty() {
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if let Some(translated_rule) = ViewportRule::from_meta(&**content) {
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let node = NodeCast::from_ref(self);
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let node = self.upcast::<Node>();
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let win = window_from_node(node);
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let LayoutChan(ref layout_chan) = win.r().layout_chan();
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@ -83,7 +84,7 @@ impl HTMLMetaElementMethods for HTMLMetaElement {
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impl VirtualMethods for HTMLMetaElement {
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fn super_type(&self) -> Option<&VirtualMethods> {
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let htmlelement: &HTMLElement = HTMLElementCast::from_ref(self);
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let htmlelement: &HTMLElement = self.upcast::<HTMLElement>();
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Some(htmlelement as &VirtualMethods)
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}
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