1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
import scala.language.dynamics
class Foo extends scala.Dynamic {
def selectDynamic(name: String): String = "selectDynamic(" + name + ")"
def applyDynamic(name: String)(args: Any*): String = "applyDynamic(" + name + ")" + args.mkString("(", ", ", ")")
def applyDynamicNamed(name: String)(args: (String, Any)*): String = "applyDynamicNamed(" + name + ")" + args.mkString("(", ", ", ")")
def updateDynamic(name: String)(value: Any): String = "updateDynamic(" + name + ")(" + value + ")"
}
class Bar(self: String) extends scala.Dynamic {
def selectDynamic(name: String): Bar = new Bar(self + ".selectDynamic(" + name + ")")
def applyDynamic(name: String)(args: Any*): Bar = new Bar(self + ".applyDynamic(" + name + ")" + args.mkString("(", ", ", ")"))
def applyDynamicNamed(name: String)(args: (String, Any)*): Bar = new Bar(self + ".applyDynamicNamed(" + name + ")" + args.mkString("(", ", ", ")"))
def updateDynamic(name: String)(value: Any): Bar = new Bar(self + ".updateDynamic(" + name + ")(" + value + ")")
def update(key: Int, value: Int): Bar = new Bar(self + ".update(" + key + ", " + value + ")")
override def toString = self
}
class Baz extends scala.Dynamic {
def selectDynamic(name: String): String = "selectDynamic(" + name + ")"
def applyDynamic(name: String)(args: String*): String = "applyDynamic(" + name + ")" + args.mkString("(", ", ", ")")
def applyDynamicNamed(name: String)(args: (String, Any)*): String = "applyDynamicNamed(" + name + ")" + args.mkString("(", ", ", ")")
def updateDynamic(name: String)(value: String): String = "updateDynamic(" + name + ")(" + value + ")"
}
class Qux extends scala.Dynamic {
def selectDynamic[T](name: String): String = "selectDynamic(" + name + ")"
def applyDynamic[T](name: String)(args: String*): String = "applyDynamic(" + name + ")" + args.mkString("(", ", ", ")")
def applyDynamicNamed[T](name: String)(args: (String, Any)*): String = "applyDynamicNamed(" + name + ")" + args.mkString("(", ", ", ")")
def updateDynamic[T](name: String)(value: T): String = "updateDynamic(" + name + ")(" + value + ")"
}
object Test {
val qux = new Qux
implicit class StringUpdater(str: String) {
def update(name: String, v: String) = s"$str.update(" + name + ", " + v + ")"
}
var failed = false
def assertEquals(expected: String, actual: Any): Unit = {
if (expected != actual.toString) {
println("Error: expected <" + expected + "> but was <" + actual.toString + ">")
failed = true
}
}
def main(args: Array[String]): Unit = {
runFooTests1()
runFooTests2()
runBarTests()
runBazTests()
runQuxTests()
assert(!failed)
}
/** Test the basics of the transfomation rules. */
def runFooTests1() = {
val foo = new Foo
assertEquals("selectDynamic(bazSelect)", foo.bazSelect)
assertEquals("applyDynamic(bazApply)()", foo.bazApply())
assertEquals("applyDynamic(bazApply)(1)", foo.bazApply(1))
assertEquals("applyDynamic(bazApply)(1, 2, 3)", foo.bazApply(1, 2, 3))
assertEquals("applyDynamic(bazApply)(1, 2, a)", foo.bazApply(1, 2, "a"))
assertEquals("applyDynamic(bazApply)(1, 2, a)", foo.bazApply(List(1, 2, "a"): _*))
assertEquals("applyDynamicNamed(bazApply)((a,1))", foo.bazApply(a = 1))
assertEquals("applyDynamicNamed(bazApply)((a,1), (b,2))", foo.bazApply(a = 1, b = 2))
assertEquals("applyDynamicNamed(bazApply)((a,1), (,0))", foo.bazApply(a = 1, 0))
assertEquals("applyDynamicNamed(bazApply)((a,1), (a,5))", foo.bazApply(a = 1, a = 5))
assertEquals("applyDynamicNamed(bazApply)((,d), (a,1), (,5), (a,c))", foo.bazApply("d", a = 1, 5, a = 'c'))
assertEquals("updateDynamic(bazUpdate)(abc)", foo.bazUpdate = "abc")
assertEquals("selectDynamic(bazSelectUpdate).update(key, value)", foo.bazSelectUpdate("key") = "value")
}
/** Test implicit conversions kick in before dynamic calls. */
def runFooTests2() = {
implicit class Bar(foo: Foo) {
def bazSelect: String = "Bar.bazSelect"
def bazApply(args: Any*): String = args.mkString("Bar.bazApply(", ", ", ")")
def bazApplyNamed(a: Int = -1, b: String = "-1"): String = "Bar.bazApplyNamed(" + a + ", " + b + ")"
}
val foo = new Foo
assertEquals("Bar.bazSelect", foo.bazSelect)
assertEquals("Bar.bazApply()", foo.bazApply())
assertEquals("Bar.bazApply(1)", foo.bazApply(1))
assertEquals("Bar.bazApply(1, 2, 3)", foo.bazApply(1, 2, 3))
assertEquals("Bar.bazApply(1, 2, a)", foo.bazApply(1, 2, "a"))
assertEquals("Bar.bazApplyNamed(1, -1)", foo.bazApplyNamed(a = 1))
assertEquals("Bar.bazApplyNamed(1, 2)", foo.bazApplyNamed(a = 1, b = "2"))
assertEquals("Bar.bazApplyNamed(1, abc)", foo.bazApplyNamed(a = 1, "abc"))
assertEquals("selectDynamic(bazSelectUpdate).update(key, value)", foo.bazSelectUpdate("key") = "value")
}
/** Test cains of dynamic calls. */
def runBarTests() = {
val bar = new Bar("bar")
// dynamics combined with themselfs
assertEquals("bar.selectDynamic(select1).selectDynamic(select2).selectDynamic(select3)",
bar.select1.select2.select3)
assertEquals("bar.applyDynamic(apply1)().applyDynamic(apply2)().applyDynamic(apply3)()",
bar.apply1().apply2().apply3())
assertEquals("bar.applyDynamic(apply1)(1).applyDynamic(apply2)(1, 2).applyDynamic(apply3)(1, 2, 3)",
bar.apply1(1).apply2(1, 2).apply3(1, 2, 3))
assertEquals("bar.applyDynamicNamed(apply1)((a,1)).applyDynamicNamed(apply2)((,1), (b,2))",
bar.apply1(a = 1).apply2(1, b = 2))
assertEquals("bar.updateDynamic(update1)(1).updateDynamic(update2)(4)", (bar.update1 = 1).update2 = 4)
assertEquals("bar.selectDynamic(update1).update(1, 2).selectDynamic(update2).update(3, 4)",
(bar.update1(1) = 2).update2(3) = 4)
// selectDynamic combined with every other dynamic
assertEquals("bar.applyDynamic(apply1)().selectDynamic(select1)", bar.apply1().select1)
assertEquals("bar.selectDynamic(select1).applyDynamic(apply2)()", bar.select1.apply2())
assertEquals("bar.applyDynamicNamed(apply1)((a,1)).selectDynamic(select1)", bar.apply1(a = 1).select1)
assertEquals("bar.selectDynamic(select1).applyDynamicNamed(apply1)((a,1))", bar.select1.apply1(a = 1))
assertEquals("bar.updateDynamic(update1)(1).selectDynamic(select1)", (bar.update1 = 1).select1)
assertEquals("bar.selectDynamic(select1).updateDynamic(update1)(1)", bar.select1.update1 = 1)
assertEquals("bar.selectDynamic(update1).update(0, 1).selectDynamic(select1)", (bar.update1(0) = 1).select1)
assertEquals("bar.selectDynamic(select1).selectDynamic(update1).update(0, 1)", bar.select1.update1(0) = 1)
// applyDynamic combined with every remaninig dynamic
assertEquals("bar.applyDynamic(apply1)().applyDynamicNamed(apply2)((a,1))", bar.apply1().apply2(a = 1))
assertEquals("bar.applyDynamicNamed(apply1)((a,1)).applyDynamic(apply2)()", bar.apply1(a = 1).apply2())
assertEquals("bar.applyDynamic(apply1)().updateDynamic(update1)(1)", bar.apply1().update1 = 1)
assertEquals("bar.updateDynamic(update1)(1).applyDynamic(apply1)()", (bar.update1 = 1).apply1())
assertEquals("bar.applyDynamic(apply1)().selectDynamic(update1).update(0, 1)", bar.apply1().update1(0) = 1)
assertEquals("bar.selectDynamic(update1).update(0, 1).applyDynamic(apply1)()", (bar.update1(0) = 1).apply1())
// applyDynamicNamed combined with every remaninig dynamic
assertEquals("bar.applyDynamicNamed(apply1)((a,1)).updateDynamic(update1)(1)", bar.apply1(a = 1).update1 = 1)
assertEquals("bar.updateDynamic(update1)(1).applyDynamicNamed(apply1)((a,1))", (bar.update1 = 1).apply1(a = 1))
assertEquals("bar.applyDynamicNamed(apply1)((a,1)).selectDynamic(update1).update(0, 1)", bar.apply1(a = 1).update1(0) = 1)
assertEquals("bar.selectDynamic(update1).update(0, 1).applyDynamicNamed(apply1)((a,1))", (bar.update1(0) = 1).apply1(a = 1))
// updateDynamic combined selectDynamic(_).update(_, _)
assertEquals("bar.updateDynamic(update1)(1).selectDynamic(update2).update(0, 1)", (bar.update1 = 1).update2(0) = 1)
assertEquals("bar.selectDynamic(update1).update(0, 1).updateDynamic(update2)(1)", (bar.update1(0) = 1).update2 = 1)
}
/** Test implicit conversion in the arguments of the dynamic call. */
def runBazTests() = {
implicit def intToString(n: Int): String = n.toString
val baz = new Baz
assertEquals("applyDynamic(bazApply)()", baz.bazApply())
assertEquals("applyDynamic(bazApply)(1)", baz.bazApply(1))
assertEquals("applyDynamic(bazApply)(1, 2, 3)", baz.bazApply(1, 2, 3))
assertEquals("applyDynamic(bazApply)(1, 2, a)", baz.bazApply(1, 2, "a"))
assertEquals("applyDynamicNamed(bazApply)((a,1))", baz.bazApply(a = 1))
assertEquals("applyDynamicNamed(bazApply)((a,1), (b,2))", baz.bazApply(a = 1, b = 2))
assertEquals("applyDynamicNamed(bazApply)((a,1), (,0))", baz.bazApply(a = 1, 0))
assertEquals("applyDynamicNamed(bazApply)((a,1), (a,5))", baz.bazApply(a = 1, a = 5))
assertEquals("applyDynamicNamed(bazApply)((,4), (a,1), (,5), (a,9))", baz.bazApply(4, a = 1, 5, a = 9))
assertEquals("updateDynamic(bazUpdate)(10)", baz.bazUpdate = 10)
assertEquals("selectDynamic(bazSelectUpdate).update(key, 10)", baz.bazSelectUpdate("key") = 10)
assertEquals("selectDynamic(bazSelectUpdate).update(7, value)", baz.bazSelectUpdate(7) = "value")
assertEquals("selectDynamic(bazSelectUpdate).update(7, 10)", baz.bazSelectUpdate(7) = 10)
}
/** Test correct lifting of type parameters */
def runQuxTests() = {
implicit def intToString(n: Int): String = n.toString
val qux = new Qux
assertEquals("selectDynamic(quxSelect)", qux.quxSelect)
assertEquals("selectDynamic(quxSelect)", qux.quxSelect[Int])
assertEquals("applyDynamic(quxApply)()", qux.quxApply())
assertEquals("applyDynamic(quxApply)()", qux.quxApply[Int]())
assertEquals("applyDynamic(quxApply)(1)", qux.quxApply(1))
assertEquals("applyDynamic(quxApply)(1)", qux.quxApply[Int](1))
assertEquals("applyDynamic(quxApply)(1, 2, 3)", qux.quxApply(1, 2, 3))
assertEquals("applyDynamic(quxApply)(1, 2, 3)", qux.quxApply[Int](1, 2, 3))
assertEquals("applyDynamic(quxApply)(1, 2, a)", qux.quxApply(1, 2, "a"))
assertEquals("applyDynamic(quxApply)(1, 2, a)", qux.quxApply[Int](1, 2, "a"))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1))", qux.quxApplyNamed(a = 1))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1))", qux.quxApplyNamed[Int](a = 1))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1), (b,2))", qux.quxApplyNamed(a = 1, b = "2"))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1), (b,2))", qux.quxApplyNamed[Int](a = 1, b = "2"))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1), (,abc))", qux.quxApplyNamed(a = 1, "abc"))
assertEquals("applyDynamicNamed(quxApplyNamed)((a,1), (,abc))", qux.quxApplyNamed[Int](a = 1, "abc"))
assertEquals("updateDynamic(quxUpdate)(abc)", qux.quxUpdate = "abc")
assertEquals("selectDynamic(quxSelectUpdate).update(key, value)", qux.quxSelectUpdate("key") = "value")
assertEquals("selectDynamic(quxSelectUpdate).update(key, value)", qux.quxSelectUpdate[Int]("key") = "value")
}
}
|
