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jscert / jsexplain

Apache License 2.0
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Enumeration order needs to be correctly implemented #28

Open IgnoredAmbience opened 6 years ago

IgnoredAmbience commented 6 years ago

ordinary_own_property_keys needs a correct implementation.

The main hurdle here is the chronological ordering of steps 3 and 4:

  1. For each own property key P of O that is a String but is not an integer index, in ascending chronological order of property creation, do
  2. For each own property key P of O that is a Symbol, in ascending chronological order of property creation, do

Following this, an implementation of the for-in enumeration order defined by EnumerateObjectProperties is required.

Then, enumerable_own_properties can also be implemented.

IgnoredAmbience commented 5 years ago

For-in reform is being discussed in tc39/ecma262#1281, https://github.com/bakkot/for-in-exploration and at the next tc39 meeting: https://docs.google.com/presentation/d/1ppVLFjnd2iGksBXeu97lml2cs9dTRJnJLfufcshvPcs/edit?usp=sharing

brabalan commented 5 years ago

This is great news. I won't be at the September meeting but I'll try to learn more at the November's one.

IgnoredAmbience commented 5 years ago

I may dial into the September one to listen in on the discussion.