Scenarios:
Default - No change to the TokenOperations.FoldableRegions metjhod
No Dupe - Removed the check for duplicate regions (Test case had none)
No Dupe or Sort - Removed the check for duplicate regions and removed the region sorting
FOLDABLEREGIONS ... - These metrics came from calling the FoldableRegions method
GETREGIONS ... - These metrics include creating a script file, tokenizing it and THEN calling the FoldableRegions method
Same test script for all with 3840 detected folding regions
Source Repo - https://github.com/glennsarti/PowerShellEditorServices/tree/syntax-folding-performance
Average Duration of the FoldableRegions method
Default - 121.4589 ms
No Dupe - 121.0129333 ms
No Dupe or Sort - 120.0091 ms
Default:
**************
FOLDABLEREGIONS Before: 09:17:11
FOLDABLEREGIONS After: 09:17:11
**************
FOLDABLEREGIONS Diff: 123.0133
**************
**************
GETREGIONS Before: 09:17:11
GETREGIONS After: 09:17:11
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 288.9402
**************
**************
FOLDABLEREGIONS Before: 09:19:02
FOLDABLEREGIONS After: 09:19:02
**************
FOLDABLEREGIONS Diff: 120.0022
**************
**************
GETREGIONS Before: 09:19:01
GETREGIONS After: 09:19:02
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 285.9206
**************
**************
FOLDABLEREGIONS Before: 09:19:14
FOLDABLEREGIONS After: 09:19:14
**************
FOLDABLEREGIONS Diff: 121.3612
**************
**************
GETREGIONS Before: 09:19:14
GETREGIONS After: 09:19:14
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 298.3641
**************
No Dupe:
**************
FOLDABLEREGIONS Before: 09:22:17
FOLDABLEREGIONS After: 09:22:17
**************
FOLDABLEREGIONS Diff: 120.001
**************
**************
GETREGIONS Before: 09:22:16
GETREGIONS After: 09:22:17
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 296.9691
**************
**************
FOLDABLEREGIONS Before: 09:22:30
FOLDABLEREGIONS After: 09:22:30
**************
FOLDABLEREGIONS Diff: 117.9986
**************
**************
GETREGIONS Before: 09:22:30
GETREGIONS After: 09:22:30
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 295.5093
**************
**************
FOLDABLEREGIONS Before: 09:22:44
FOLDABLEREGIONS After: 09:22:44
**************
FOLDABLEREGIONS Diff: 125.0392
**************
**************
GETREGIONS Before: 09:22:44
GETREGIONS After: 09:22:44
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 301.9997
**************
No Sorting or dupe detect:
**************
FOLDABLEREGIONS Before: 09:19:56
FOLDABLEREGIONS After: 09:19:56
**************
FOLDABLEREGIONS Diff: 117.0299
**************
**************
GETREGIONS Before: 09:19:56
GETREGIONS After: 09:19:56
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 288.9367
**************
**************
FOLDABLEREGIONS Before: 09:20:12
FOLDABLEREGIONS After: 09:20:12
**************
FOLDABLEREGIONS Diff: 124.9988
**************
**************
GETREGIONS Before: 09:20:12
GETREGIONS After: 09:20:12
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 290.9987
**************
**************
FOLDABLEREGIONS Before: 09:20:25
FOLDABLEREGIONS After: 09:20:25
**************
FOLDABLEREGIONS Diff: 117.9986
**************
**************
GETREGIONS Before: 09:20:25
GETREGIONS After: 09:20:25
**************
GETREGIONS Regions: 3840
GETREGIONS Diff: 287.9997
**************