Re: [heycam/webidl] Update attribute setter/getters in various ways (#217)

domenic commented on this pull request.



> +    The <dfn id="dfn-attribute-getter" export>attribute getter</dfn> is created as follows, given an
+    [=attribute=] |attribute|, an [=interface=] |target|, and a [=Realm=] |realm|:
+
+    1.  Let |steps| be the following series of steps:
+        1.  Try running the following steps:
+            1.  Let |O| be <emu-val>null</emu-val>.
+            1.  If |attribute| is not a [=static attribute=]:
+                1.  If the <emu-val>this</emu-val> value is <emu-val>null</emu-val> or
+                    <emu-val>undefined</emu-val>, set |O| to |realm|'s [=Realm/global object=].
+                    (This will subsequently cause a <emu-val>TypeError</emu-val> in a few steps, if
+                    the global object does not implement |target| and [{{LenientThis}}] is not
+                    specified.)
+                    <!-- https://www.w3.org/Bugs/Public/show_bug.cgi?id=18547#c9 -->
+                1.  Otherwise, set |O| to the <emu-val>this</emu-val> value.
+                1.  If |O| is a [=platform object=], then [=perform a security check=], passing |O|,
+                    |realm|, |id|, and "method".

Fixed

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