Commits on Oct 21, 2015

1. Introduce IDLInterface::derives() …

   This method is given a DOMClass value and returns whether it derives from Self.
   
   Interfaces with no descendants directly check whether the given DOMClass is the
   same as their own.

   

   nox committed Oct 21, 2015
   c77d3b9

2. Make test-tidy ignore braces surrounded by backticks

   

   nox committed Oct 21, 2015
   bd363b0

3. 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

   

   nox committed Oct 21, 2015
   13ea3ac

4. Clean up the cast calls

   

   nox committed Oct 21, 2015

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   68014af

5. Document the new inheritance machinery (fixes #8125)

   

   nox committed Oct 21, 2015

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   d0e022b