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Author SHA1 Message Date
Sönke Ludwig 44a2b970af
Merge pull request #42 from schveiguy/addvisit 
Add forwarder for visit and tryVisit from TaggedUnion to TaggedAlgebraic
 2019-11-30 16:24:36 +01:00
Steven Schveighoffer 4bcd34d417 Add forwarder for visit and tryVisit from TaggedUnion to TaggedAlgebraic 2019-11-30 09:53:45 -05:00
Steven Schveighoffer c322e43fd4 Add access of value via Kind enum. Fixes #38. 2019-11-30 09:30:29 -05:00
Steven Schveighoffer f0d324f43f Allow typeof(null) to provide constructors and opAssign for TaggedUnion. 
Fixes #36.
 2019-10-30 18:12:50 -04:00
Sönke Ludwig b037967ed0 Add unit test. 2019-10-25 22:20:27 +02:00
Sönke Ludwig d6d480b647 Add TaggedAlgebraic.toString(). 
Enables a better string representation, mainly useful for debugging purposes.
 2019-10-25 22:16:44 +02:00
John Colvin c128744e19 check sizeof 2019-10-24 17:59:04 +01:00
John Colvin 9789701e6e fix array members 2019-10-24 17:54:00 +01:00
Sönke Ludwig f8a9b8c651 Add stronger restrictions to TA.opDispatch. Fixes #9. 
Defines opDispatch as two levels of nested templates, so that the outer level only checks the member name to match any member defined by one of the contained types. This allows hasMember!TA  to report proper values instead of always assuming `true`.

As a side-effect, `isOutputRange!(TA, T)` now only returns true, if any of the contained types is actually a matching output range.
 2019-10-11 11:13:57 +02:00
Sönke Ludwig f4c7030459 Let all TaggedAlgebraic operations return as auto ref. Fixes #15. 2019-10-11 10:28:23 +02:00
Sönke Ludwig ba79a25298 Add explicit unit test for commonAlignment. 2019-04-16 11:49:42 +02:00
Sönke Ludwig fd85603576 Compute the proper struct alignment for TaggedUnion. 
Before this change, the alignment of TaggedAlgebraic was always 4, which in turn had a 50% chance of aligning 8-byte pointers on a non-8-byte boundary, causing the pointer to become invisible to the GC (and less bad, causing performance degradation when dereferencing the pointer). This would happen in particular when the total size of the TaggedUnion/TaggedAlgebraic was not divisible by 8 and an array of values was built.
 2019-04-16 11:37:04 +02:00
Denis Feklushkin 3258572585 Ddox fix and CI test added 2019-03-05 19:04:45 +07:00
Sönke Ludwig 141a4e290a Detect types that are obviously not function literals. 
This avoids extremely cryptic error messages with no pointer to the origin of the problem.
 2019-02-24 14:24:37 +01:00
Sönke Ludwig 953198a293 Fix using non-copyable types with TaggedUnion. 2019-02-23 21:49:08 +01:00
Sönke Ludwig 7145693748 Work around name lookup issue on DMD < 2.081.0. 2019-02-23 18:18:39 +01:00
Sönke Ludwig 56d50fd56c Work around Phobos issue 19696. 2019-02-23 18:18:22 +01:00
Sönke Ludwig 6589bac23a Add TaggedUnion.hasType!T. 2019-02-23 16:16:20 +01:00
Sönke Ludwig a52958ef01 Work around ReplaceType compile error issue. 
ReplaceType doesn't work for "class C : D!C {}"
 2019-02-23 15:56:59 +01:00
Sönke Ludwig b766f62d43 Actually check for superfluous handlers. 2019-02-23 15:55:57 +01:00
Sönke Ludwig ab25b89fb1 Make self-referential types work with TaggedAlgebraic, too. 
Also removes some unused template code.
 2019-02-22 19:28:09 +01:00
Sönke Ludwig f4b621963c Add support for self-referential types using "This" placeholder. 2019-02-22 17:34:08 +01:00
Sönke Ludwig 7ede6bf033 Refactor the TaggedUnion API. 
- Add constructors and assignment operators for unique types
- Rename field getters to fooValue and value!() to enable sane property syntax and to avoid confusion when modifying the returned reference
- Fix misnomer "isUnionType" instead of "isUnitType"
 2019-02-22 16:11:21 +01:00
Sönke Ludwig 1c88c3c65d Add template constraint to visit/tryVisit. 2019-02-22 12:22:38 +01:00
Sönke Ludwig 59826ad719 Error out on extraneous visitors. 2019-02-22 11:14:56 +01:00
Sönke Ludwig 194e0dca41 Implement a simple version of visit/tryVisit for TaggedUnion. 
See #3.
 2019-02-22 03:08:55 +01:00
Sönke Ludwig 88308fcba4 Split up TaggedUnion and TaggedAlgebraic into separate modules. 2019-02-22 03:08:55 +01:00
Sönke Ludwig f7a03cdb02 Add enum support to TaggedUnion. 
Allows to define the accepted types using an annotated enum instead of a struct/union.
 2019-02-22 03:08:55 +01:00
Sönke Ludwig 39ebd11570 Use AliasSeq instead of TypeTuple. 2019-02-22 03:08:54 +01:00
Sönke Ludwig 78ca6e0cb5 Reduce reliance on typeof(U.field) to prepare for supporting U==enum. 2019-02-22 03:08:54 +01:00
Sönke Ludwig 95c2919d2b Introduce TaggedUnion as the low-level basis for TaggedAlgebraic. 
TaggedUnion has a number of convenience features compared to TaggedAlgebraic that are possible because of the missing dynamic dispatch functionality. If the latter is not required, TaggedUnion provides a much less complex and more robust way to store a fixed set of types/kinds.
 2019-02-22 03:08:54 +01:00
Sönke Ludwig 8ee1afd7f2 Don't define ambiguous opBinary/opBinaryRight overloads. Fixes #18. 2019-02-22 03:02:50 +01:00
Sönke Ludwig 6a08e1fea4 Make get!T nogc. 2018-10-21 21:37:46 +02:00
Sönke Ludwig c275902b78 Fix deprecation warning. 2018-10-06 10:38:32 +02:00
drug007 2d3df68333
String literal reduces memory allocation. 
`-profile=gc` showed that `assert` allocated memory for every iteration.
 2018-09-20 10:32:25 +03:00
Sönke Ludwig f963694522 Work around linker error for "dub test" in dependent projects. 2018-03-20 17:28:21 +01:00
Sönke Ludwig 2a7bd18695 Allow TA(val, kind) construction for unique types, too. 2018-03-20 16:37:52 +01:00
Sönke Ludwig 5fc3e16a83 Enable opEquals between two TaggedAlgebraic!T values. 2018-03-20 16:33:13 +01:00
Sönke Ludwig c7f4533d17 Fix compilation errors caused by swap(). 2018-03-20 16:21:36 +01:00
Sönke Ludwig 445f1ef365 Fix test for frontend versions < 2.072.x. 2018-01-18 00:44:33 +01:00
Sönke Ludwig 3709a2298f Add test and close #8. 
Was fixed by 513729bf59 for compiler frontend versions >= 2.072.x.
 2018-01-18 00:31:00 +01:00
Sönke Ludwig 9b13f08a25 Fix compile error for overloaded TaggedAlgebraic returns. Fixes #13. 2018-01-18 00:29:16 +01:00
Sönke Ludwig f9c7d444e6 Disable TypeOf on frontent versions < 2.072.x 2018-01-18 00:06:06 +01:00
Sönke Ludwig f87b378cf3 Add the TypeOf template. 2018-01-17 23:53:57 +01:00
Sönke Ludwig de7df6bfeb Fix hasType!T when called with rvalues. 2017-12-07 20:41:06 +01:00
John Colvin ffe296a96f do implicit casting without std.conv.to 2017-12-07 15:59:12 +00:00
Sönke Ludwig 513729bf59 Enable proper default initialization. 
Since @disable this() still leaves an invalid .init open, TaggedAlgebraic.init has now been changed to always contain the .init value of the first specified sub type.

Note that this change is restricted to DMD 2.072 and up, because earlier versions of DMD do not allow postblits or destructors within unions and using a union appears to be the only way to implement this.
 2017-06-12 21:12:42 +02:00
Sönke Ludwig a7c77bba94
Fix compile error on DMD 2.068.2. 2017-06-12 21:06:55 +02:00
Sönke Ludwig be4a93e553
Make apply() work for plain values, too. 
This provides symmetry between TaggedAlgebraic values and ordinary values.
 2017-05-28 22:28:39 +02:00
Sönke Ludwig 50e80dc0d9
Add apply() to generically extract the contained value. 
See also #3.
 2017-05-28 22:05:19 +02:00