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2 commits

Author SHA1 Message Date
Andreas Kling
26bc3d4ea0 AK: Add FlyString::equals_ignoring_case(StringView)
And share the code with String by moving the logic to StringUtils. :^)
2020-03-22 13:07:45 +01:00
Andreas Kling
4f72f6b886 AK: Add FlyString, a simple flyweight string class
FlyString is a flyweight string class that wraps a RefPtr<StringImpl>
known to be unique among the set of FlyStrings. The class is very
unoptimized at the moment.

When to use FlyString:

- When you want O(1) string comparison
- When you want to deduplicate a lot of identical strings

When not to use FlyString:

- For strings that don't need either of the above features
- For strings that are likely to be unique
2020-03-22 13:03:43 +01:00