Mercurial > projects > orange
annotate orange/util/Use.d @ 35:511d1ef4e299 experimental
Now all unit tests pass on latest DMD2 compiler.
| author | Jacob Carlborg <doob@me.com> |
|---|---|
| date | Wed, 03 Aug 2011 21:44:11 +0200 |
| parents | 78e5fef4bbf2 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Copyright: Copyright (c) 2010 Jacob Carlborg. | |
| 3 * Authors: Jacob Carlborg | |
| 4 * Version: Initial created: Jan 29, 2010 | |
| 5 * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0) | |
| 6 */ | |
| 7 module orange.util.Use; | |
| 8 | |
| 9 version (Tango) | |
| 10 { | |
| 11 import tango.core.Tuple; | |
| 12 import tango.core.Traits; | |
| 13 } | |
| 14 | |
| 15 else | |
| 16 { | |
| 17 import std.typetuple; | |
|
35
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
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18 import std.typecons; |
| 0 | 19 import std.traits; |
| 20 | |
| 21 alias ReturnType ReturnTypeOf; | |
| 22 alias ParameterTypeTuple ParameterTupleOf; | |
| 23 } | |
| 24 | |
|
26
78e5fef4bbf2
Third step in refactoring the API. Stating to add unit tests.
Jacob Carlborg <doob@me.com>
parents:
1
diff
changeset
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25 struct Use (ARGS...) |
| 0 | 26 { |
| 27 static assert (ARGS.length > 0); | |
| 28 | |
| 29 private | |
| 30 { | |
| 31 alias ReturnTypeOf!(ARGS[0]) ReturnType; | |
| 32 | |
| 33 static if (ARGS.length >= 2) | |
| 34 alias Tuple!(ReturnType delegate (ARGS), ARGS[1 .. $]) NEW_ARGS; | |
| 35 | |
| 36 else | |
| 37 alias Tuple!(ReturnType delegate (ARGS)) NEW_ARGS; | |
| 38 } | |
| 39 | |
| 40 NEW_ARGS args; | |
| 41 | |
| 42 ReturnType opIn (ARGS[0] dg) | |
| 43 { | |
| 44 assert(args[0]); | |
| 45 | |
| 46 static if (NEW_ARGS.length == 1) | |
| 47 return args[0](dg); | |
| 48 | |
| 49 else | |
|
35
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
50 { |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
51 version (Tango) |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
52 return args[0](dg, args[1 .. $]); |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
53 |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
54 else |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
55 return args[0](dg, args.expand[1 .. $]); |
|
511d1ef4e299
Now all unit tests pass on latest DMD2 compiler.
Jacob Carlborg <doob@me.com>
parents:
26
diff
changeset
|
56 } |
| 0 | 57 } |
| 58 } | |
| 59 | |
| 60 struct RestoreStruct (U, T) | |
| 61 { | |
| 62 U delegate(U delegate (), ref T) dg; | |
| 63 T* value; | |
| 64 | |
| 65 U opIn (U delegate () deleg) | |
| 66 { | |
| 67 return dg(deleg, *value); | |
| 68 } | |
| 69 } | |
|
1
11a31bd929f9
Removed dependency on private library
Jacob Carlborg <doob@me.com>
parents:
0
diff
changeset
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70 |
| 0 | 71 RestoreStruct!(U, T) restore (U = void, T) (ref T val) |
| 72 { | |
| 73 RestoreStruct!(U, T) restoreStruct; | |
| 74 | |
| 75 restoreStruct.dg = (U delegate () dg, ref T value){ | |
| 76 T t = value; | |
| 77 | |
| 78 static if (is(U == void)) | |
| 79 { | |
| 80 dg(); | |
| 81 value = t; | |
| 82 } | |
| 83 | |
| 84 else | |
| 85 { | |
| 86 auto result = dg(); | |
| 87 value = t; | |
| 88 | |
| 89 return result; | |
| 90 } | |
| 91 }; | |
| 92 | |
| 93 restoreStruct.value = &val; | |
| 94 | |
| 95 return restoreStruct; | |
| 96 } |