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

bzbarsky commented on this pull request.



> +        let obj = {__proto__: proto, d: 5, c: 6}
+        Object.defineProperty(obj, "e", {value: 7, enumerable: false});
+        let result = identity(obj);
+        assert(result.a === undefined);
+        assert(result.b === undefined);
+        assert(result.e === undefined);
+        let entries = Object.entries(result);
+        assert(entries[0][0] === "d");
+        assert(entries[0][1] === "5");
+        assert(entries[1][0] === "c");
+        assert(entries[1][1] === "6");
+    </pre>
+
+    Dictionary keys and values can be constrained, although keys can only be
+    constrained among the three string types. The following conversions all
+    throw {{TypeError}}s:

Conversion to ByteString will throw if one of the 16-bit code units in the string is larger than 255.

But yes, the other two examples here would not throw: USVString just sticks in a replacement char and converting a random object to an integer type will produce 0.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/heycam/webidl/pull/180