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Diffstat (limited to 'tests/run/dynamicDynamicTests.scala')
-rw-r--r-- | tests/run/dynamicDynamicTests.scala | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/tests/run/dynamicDynamicTests.scala b/tests/run/dynamicDynamicTests.scala new file mode 100644 index 000000000..3f8da8298 --- /dev/null +++ b/tests/run/dynamicDynamicTests.scala @@ -0,0 +1,164 @@ +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 + ")" +} + +object Test { + 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() + 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) + } +} |