Commit Graph

11 Commits

Author SHA1 Message Date
Erik Eckstein
755f6aa2e4 AST, SIL: Remove UTF16 encoding from StringLiteralExpr and StringLiteralInst
The UTF16 encoding is not used (anymore). I think it became obsolete with the switch to the UTF8 String representation.
2020-08-06 19:09:09 +02:00
Michael Ilseman
bca1b74427 [Character] Permit tagged emoji Character literals
Loosen up the compiler's grapheme analysis to allow the emoji tagged
sequences as graphemes.
2018-11-15 09:06:20 -08:00
practicalswift
6d1ae2a39c [gardening] 2016 → 2017 2017-01-06 16:41:22 +01:00
practicalswift
797b80765f [gardening] Use the correct base URL (https://swift.org) in references to the Swift website
Remove all references to the old non-TLS enabled base URL (http://swift.org)
2016-11-20 17:36:03 +01:00
Dan Raviv
29d76f3b68 Canonize swift header files headers and footers
- Added missing ifdef guard in PointerIntEnum header
- Consistent naming convention for ifdef guards
- Consistent 'end namespace swift'
- Consistent single EOL at end of header files
2016-03-23 09:04:12 +02:00
Zach Panzarino
e3a4147ac9 Update copyright date 2015-12-31 23:28:40 +00:00
Roman Levenstein
97014172b7 [sil-combine] String literal concatenation optimization. Constant-fold concatenation of string literals known at compile-time.
Addresses rdar://17033696.

Swift SVN r21526
2014-08-28 11:33:21 +00:00
Dmitri Hrybenko
938e7c2676 stdlib: introduce UnicodeScalarLiteralConvertible protocol
This allows UnicodeScalars to be constructed from an integer, rather
then from a string.  Not only this avoids an unnecessary memory
allocation (!) when creating a UnicodeScalar, this also allows the
compiler to statically check that the string contains a single scalar
value (in the same way the compiler checks that Character contains only
a single extended grapheme cluster).

rdar://17966622

Swift SVN r21198
2014-08-14 16:04:39 +00:00
Dmitri Hrybenko
4814e00fda stdlib/String: implement Unicode extended grapheme cluster segmentation
algorithm

The implementation uses a specialized trie that has not been tuned to the table
data.  I tried guessing parameter values that should work well, but did not do
any performance measurements.

There is no efficient way to initialize arrays with static data in Swift.  The
required tables are being generated as C++ code in the runtime library.

rdar://16013860


Swift SVN r19340
2014-06-30 14:38:53 +00:00
Dmitri Hrybenko
7704e19b7d libBasic: implement extended grapheme cluster segmentation algorithm
This is only for the frontend, not for stdlib.  The implementation is very
slow, optimizing it is the next step.

rdar://16755123 rdar://16013860


Swift SVN r18928
2014-06-16 14:20:43 +00:00
Dmitri Hrybenko
669f633070 Add "single extended grapheme cluster" literals (SEGCL) -- a subset of
double-quoted string literals that contain a single extended grapheme cluster

SEGCL by default infer type String, but you can ask to infer Character
for them.

Single quoted literals continue to infer Character.

Actual extended grapheme cluster segmentation is not implemented yet,
<rdar://problem/16755123> Implement extended grapheme cluster
segmentation in libSwiftBasic

This is part of
<rdar://problem/16363872> Remove single quoted characters

Swift SVN r17034
2014-04-29 14:08:16 +00:00