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xo-reader2: DefineSsm: respond to = token

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This commit is contained in:
Roland Conybeare 2026-01-21 17:35:01 -05:00
commit 58481857e2
1 changed files with 6 additions and 1 deletions
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7
include/xo/facet/obj.hpp
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@ -103,7 +103,12 @@ namespace xo {
return *this;
}
/** safe downcast from variant. null if downcast fails **/
/** safe downcast from variant. null if downcast fails
*
* Use:
* obj<AFoo> x = ...;
* obj<AFoo,DQuux> quux = obj<AFoo,DQuux>::from(x);
**/
static obj from(const OObject<AFacet> & other) {
return obj(other.template downcast<DRepr>());
}