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<div class="">1. Sometimes it is contently to be able to decode a struct or an object from <span style="color: rgb(36, 41, 46); orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class="">a Foundation object (either NSArray or NSDictionary) that
produce a valid JSON.</span></div>
<div class=""><span style="orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""><font color="#24292e" class="">For example, if I use a 3d party library that provides </font></span><span style="orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""><font color="#24292e" class=""><i class="">NSDictionary</i> to
me. Due to </font></span><span style="color: rgb(36, 41, 46);" class=""><i class="">JSONDecoder</i> decodes only from
<i class="">Data</i>,</span><span style="orphans: 2; widows: 2; background-color: rgb(255, 255, 255);" class=""><font color="#24292e" class=""> in the first place I have to convert
<i class="">NSDictionary</i> to <i class="">Data</i> in order to use </font></span><font color="#24292e" class="">the one so far. But the decoder does the back action first thing.</font></div>
<div class=""><font color="#24292e" class="">I created </font><a href="https://github.com/apple/swift/pull/12791" class="">Pull Request</a><font color="#24292e" class="">, that was closed.</font></div>
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<div class=""><font color="#24292e" class="">2. Is it possible to use </font><i style="color: rgb(36, 41, 46);" class="">JSONDecoder</i><font color="#24292e" class=""> when I don’t know the type of a particular property of the required type?</font></div>
<div class=""><font color="#24292e" class="">For instance, if I develop a library that allows bi-directional communication between server and client. The library wraps transmitted data into an internal object in a way that one of the object’s properties is
the</font><font color="#24292e" class=""> data. So, the type of the property is unknown inside the library. I want to decode the internal object with JSONDecoder, but I can’t specify the type of one property.</font></div>
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