Re: [heycam/webidl] Specify open dictionaries. (#180)

domenic commented on this pull request.



> @@ -7529,6 +7575,95 @@ iterable |iterable| and an iterator getter
 </div>
 
 
+<h4 id="es-open-dictionary">Open dictionaries — OpenDictionary&lt;[|K|,] |V|&gt;</h4>
+
+IDL {{OpenDictionary}}&lt;|K|, |V|&gt; values are represented by
+ECMAScript <emu-val>Object</emu-val> values.
+
+<p id="es-to-open-dictionary">
+    An ECMAScript value |O| is [=converted to an IDL value|converted=] to an IDL <code>{{OpenDictionary}}<|K|, |V|></code> value as follows:
+</p>
+
+<ol class="algorithm">
+    1.  Let |result| be a new empty instance of <code>{{OpenDictionary}}<|K|, |V|></code>.
+    1.  If [=Type=](|O|) is <emu-val>Undefined</emu-val> or <emu-val>Null</emu-val>,
+        return |result|.

Uh, what are you reading? Can you quote? I see there a very clear step 1 that says "If Type(V) is not Undefined, Null or Object, then throw a TypeError."

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