6 Commits

Author	SHA1	Message	Date
Michael Ilseman	7aea40680d	[String] NFC iterator fast-paths ... Refactor and rename _StringGutsSlice, apply NFC-aware fast paths to a new buffered iterator. Also, fix bug in _typeName which used to assume ASCIIness and better SIL optimizations on StringObject.	2018-11-04 10:42:41 -08:00
Michael Ilseman	c51aa5988f	[String] Cleanup normalization code. ... Clean up some of the code surrounding the normalized code unit iterator.	2018-11-04 10:42:41 -08:00
Lance Parker	f1a35bd1c9	String comparison iterator for UTF8 strings	2018-11-04 10:42:41 -08:00
Michael Ilseman	a0e639eaf5	[String] Grapheme breaking fast-paths ... Add in our scalar-based fast-paths for UTF-8 and foreign strings, and update the grapheme cache.	2018-11-04 10:42:40 -08:00
Michael Ilseman	fe7c3ce2e4	[String] Refactorings and cleanup ... * Refactor out RRC implementation into dedicated file. * Change our `_invariantCheck` pattern to generate efficient code in asserts builds and make the optimizer job's easier. * Drop a few Bidi shims we no longer need. * Restore View decls to String, workaround no longer needed * Cleaner unicode helper facilities	2018-11-04 10:42:40 -08:00
Michael Ilseman	89d18e1a3a	[String] Refactor helper code into UnicodeHelpers.swift. ... Clean up some of the index assumptions, stick index-aware methods on _StringGuts, and otherwise migrate code over to UnicodeHelpers.swift.	2018-11-04 10:42:40 -08:00