- From: Sigbjorn Finne <sof@opera.com>
- Date: Wed, 08 Jan 2014 08:44:28 +0100
- To: public-script-coord@w3.org
Hi, currently, the ES binding for WebIDL uses the range of exactly representable integers [-2^53, 2^53] (*) http://heycam.github.io/webidl/#es-long-long http://heycam.github.io/webidl/#es-unsigned-long-long ES6 will provide support for testing the range of unambiguously representable integers [-2^53 + 1, 2^53 - 1] https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.issafeinteger a range with desirable properties wrt equational reasoning. So, with the above, if you have an attribute like [EnforceRange] attribute long long tvisyn; an implementation of the ES binding will enforce the WebIDL "long long" range, but ES(6) code will have to perform a second check of the range if concerned about restricting this to the safe range. How about aligning the WebIDL IDL range with ES6 & unambiguously representable integers? (Apologies if this has been resolved already or there's an open issue on it; couldn't find any.) --sigbjorn * - a fairly recent change, http://dev.w3.org/cvsweb/2006/webapi/WebIDL/v1.xml.diff?r1=1.74;r2=1.75;f=h (it was the "safe" range prior to that.)
Received on Wednesday, 8 January 2014 09:33:17 UTC