15310 2011-12-22 02:57:24 +0000 [Shadow]: Formalize insertion points and shadow insertion points in fallback content in the algorithm 2011-12-26 18:27:58 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified PC All RESOLVED FIXED P2 normal --- 14978 1 dominicc dglazkov public-webapps-bugzilla oldest_to_newest 61923 0 dominicc 2011-12-22 02:57:24 +0000 The tree composition algorithm states: <http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#dfn-tree-composition> "The insertion points or shadow insertion points in fallback content must not participate in composition." This should be clarified by formalizing it in the algorithm or clarifying the meaning of “insertion point” and “shadow insertion point”. For example, is the distribution algorithm when referred to by the tree composition algorithm in step 4.2 thus part of composition, or separate to it? If it is separate, then <content select="a"> <content select="b"></content> </content> is a way to say “distribute a and b here; if there are a, output them, otherwise output b.” If the distribution algorithm is a sub-part of composition then per the prose regulation the meaning is roughly "distribute a here; if there are a, output them.” This should be clarified by formalizing the prose regulation in the algorithm. For example, if the intended meaning is the latter, then the term “insertion point” could be tweaked to include ”…that does not have any insertion point as an ancestor.” 61952 1 dglazkov 2011-12-22 19:20:45 +0000 I think I got it: http://dvcs.w3.org/hg/webcomponents/rev/fbaafbc9277a In order to avoid cyclic references, I had to define the concept of "active" and "inactive" insertion point. WDYT? 62024 2 dominicc 2011-12-26 02:27:57 +0000 Yes—active and inactive have made this clear. 62031 3 dglazkov 2011-12-26 18:27:58 +0000 yay!