1670265 - Remove no longer used Unicode reverse case folding and same upper-case tables

Status: RESOLVED FIXED

(Core :: JavaScript Engine, task)

Comment 1

[André Bargull [:anba]]

Attachment: Bug 1670265 - Part 1: Remove reverse case folding info. r=iain!

Removes the ReverseFoldCase{1,2,3}() functions and the accompanying
FoldingInfo::reverse{1,2,3} fields. And updates the Unicode script
to no longer emit these fields.

folding_shift had to be changed from 5 to 6, because the tuple stored in
folding_cache is now only holding the folding code unit.

In process_case_folding() we no longer need to assert that we have at
maximum three reverse case foldings, so we can remove the len(rev_folding) <= 3
assertion, too.

Drive-by changes:

• Add a small comment to read_case_folding describing the line format.
• Also assert we only handle common and simple case foldings and restrict the
  return value of read_case_folding to only return the (code, mapping)
  tuple.

Comment 2

[André Bargull [:anba]]

Attachment: Bug 1670265 - Part 2: Remove no longer used CodepointsWithSameUpperCase class. r=iain!

Removes the CodepointsWithSameUpperCase class and the generator code in
"make_unicode.py".

Depends on D93089

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/2956214a5ca7
Part 1: Remove reverse case folding info. r=iain
https://hg.mozilla.org/integration/autoland/rev/addad36eb103
Part 2: Remove no longer used CodepointsWithSameUpperCase class. r=iain

Comment 4

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/2956214a5ca7
https://hg.mozilla.org/mozilla-central/rev/addad36eb103