Brendan Eich (2013-09-06T16:50:16.000Z)
domenic at domenicdenicola.com (2013-09-17T20:01:13.105Z)
Domenic Denicola <mailto:domenic at domenicdenicola.com> September 6, 2013 9:13 AM > Really? The Firefox and Chrome debuggers, from what I can see, always > hide implementation stack frames from us. This is not about "implementation stack frames". The frame or frames would be for your code written in the comprehension expression. > Are you referring to the C++ debugger you'd use while developing those > engines? We are probably in the weeds, but only slightly. The main thing is the spec does not "desugar", but if it did, desugaring to (potentially nested) closures would need to be specified instead of what's drafted now: generator function with let blocks. Debuggers can't hide everything, and should not. It's awesome to black-box at every level of abstraction, Firefox's devtools support this -- it wins for users, never mind built-ins. But let's get back to the spec issue.