Miranda optUncall
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Kevin Reid (Talk | contribs) (describe optUncall) |
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| - | '''__optUncall/0''' is a [[ | + | '''__optUncall/0''' is a [[miranda message]] which may return a [[portrayal]] of the object receiving it. |
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| + | The [[miranda method]] for this message always returns <code>[[null]]</code>. | ||
For [[Selfless]] objects, __optUncall is guaranteed to return a portrayal which exactly represents the object; if <var>a</var> is selfless, then <var>a</var> [[==]] E.call(E, "call", <var>a</var>.__optUncall()). | For [[Selfless]] objects, __optUncall is guaranteed to return a portrayal which exactly represents the object; if <var>a</var> is selfless, then <var>a</var> [[==]] E.call(E, "call", <var>a</var>.__optUncall()). | ||
Revision as of 14:09, 21 April 2007
__optUncall/0 is a miranda message which may return a portrayal of the object receiving it.
The miranda method for this message always returns null.
For Selfless objects, __optUncall is guaranteed to return a portrayal which exactly represents the object; if a is selfless, then a == E.call(E, "call", a.__optUncall()).
__optUncall is typically used by serialization systems for the default portrayal in the absence of other knowledge about the object.
