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Diffstat (limited to 'test/scalacheck/scala/reflect/quasiquotes/DefinitionConstructionProps.scala')
| -rw-r--r-- | test/scalacheck/scala/reflect/quasiquotes/DefinitionConstructionProps.scala | 455 |
1 files changed, 455 insertions, 0 deletions
diff --git a/test/scalacheck/scala/reflect/quasiquotes/DefinitionConstructionProps.scala b/test/scalacheck/scala/reflect/quasiquotes/DefinitionConstructionProps.scala new file mode 100644 index 0000000000..9d35c9229d --- /dev/null +++ b/test/scalacheck/scala/reflect/quasiquotes/DefinitionConstructionProps.scala @@ -0,0 +1,455 @@ +package scala.reflect.quasiquotes + +import org.scalacheck._, Prop._, Gen._, Arbitrary._ +import scala.reflect.runtime.universe._, Flag._, internal.reificationSupport.ScalaDot + +object DefinitionConstructionProps + extends QuasiquoteProperties("definition construction") + with ClassConstruction + with TraitConstruction + with TypeDefConstruction + with ValDefConstruction + with PatDefConstruction + with DefConstruction + with PackageConstruction + with ImportConstruction { + + val x: Tree = q"val x: Int" + property("SI-6842 a1") = test { assertEqAst(q"def f($x) = 0", "def f(x: Int) = 0") } + property("SI-6842 a2") = test { assertEqAst(q"class C($x)", "class C(val x: Int)") } + property("SI-6842 a3") = test { assertEqAst(q"class C { $x => }", "class C { x: Int => }") } + property("SI-6842 a4") = test { assertEqAst(q"trait B { $x => }", "trait B { x: Int => }") } + property("SI-6842 a5") = test { assertEqAst(q"object A { $x => }", "object A { x: Int => }") } + + val t: Tree = q"type T" + property("SI-6842 b1") = test { assertEqAst(q"def f[$t] = 0", "def f[T] = 0") } + property("SI-6842 b2") = test { assertEqAst(q"class C[$t]", "class C[T]") } + property("SI-6842 b3") = test { assertEqAst(q"trait B[$t]", "trait B[T]") } +} + +trait ClassConstruction { self: QuasiquoteProperties => + val anyRef = ScalaDot(TypeName("AnyRef")) + val emtpyConstructor = + DefDef(Modifiers(), termNames.CONSTRUCTOR, List(), + List(List()), TypeTree(), Block(List(pendingSuperCall), Literal(Constant(())))) + def classWith(name: TypeName, parents: List[Tree] = List(anyRef), body: List[DefDef] = Nil) = + ClassDef( + Modifiers(), name, List(), + Template(parents, emptyValDef, emtpyConstructor :: body)) + + property("construct case class") = test { + val params = q"val x: Int" :: q"val y: Int" :: Nil + val name = TypeName("Point") + assertEqAst(q"$CASE class $name(..$params)", "case class Point(x: Int, y: Int)") + } + + property("case class bare param") = test { + assertEqAst(q"$CASE class Point(x: Int, y: Int)", "case class Point(private[this] val x: Int, private[this] val y: Int)") + } + + property("generate default constructors automatically") = test { + val parents = List.empty[Tree] + assertEqAst(q"class Foo extends ..$parents", "class Foo") + } + + property("unquote term name into class") = forAll { (rname: TypeName) => + // add prefix to avoid failure in case rname is keyword + val name = TypeName("prefix$" + rname) + eqAst(q"class $name", "class " + name.toString) + } + + property("unquote method into class") = forAll { (name: TypeName, method: DefDef) => + q"class $name { $method }" ≈ classWith(name, body = List(method)) + } + + property("unquote members into class") = forAll { (name: TypeName, defs: List[DefDef], extra: DefDef) => + q"""class $name { + ..$defs + $extra + }""" ≈ classWith(name, body = defs :+ extra) + } + + property("unquote type name into class parents") = forAll { (name: TypeName, parent: TypeName) => + q"class $name extends $parent" ≈ classWith(name, parents = List(Ident(parent))) + } + + property("param flags are consistent with raw code") = test { + val pubx = q"val x: Int" + val privx = q"private[this] val x: Int" + assertEqAst(q" class C(x: Int)", " class C(x: Int) ") + assertEqAst(q"case class C(x: Int)", "case class C(x: Int) ") + assertEqAst(q" class C($pubx) ", " class C(val x: Int) ") + assertEqAst(q"case class C($pubx) ", "case class C(x: Int) ") + assertEqAst(q" class C($privx)", " class C(x: Int) ") + assertEqAst(q"case class C($privx)", "case class C(private[this] val x: Int)") + } + + property("SI-8333") = test { + assertEqAst(q"{ $NoMods class C }", "{ class C }") + } + + property("SI-8332") = test { + val args = q"val a: Int; val b: Int" + assertEqAst(q"class C(implicit ..$args)", "class C(implicit val a: Int, val b: Int)") + } + + property("SI-8451: inline secondary constructors") = test { + assertEqAst(q"class C(x: Int) { def this() = this(0) }", "class C(x: Int) { def this() = this(0) }") + } + + property("SI-8451: unquoted secondary constructors") = test { + val secondaryCtor = q"def this() = this(0)" + assertEqAst(q"class C(x: Int) { $secondaryCtor }", "class C(x: Int) { def this() = this(0) }") + } +} + +trait TraitConstruction { self: QuasiquoteProperties => + property("unquote name into trait def") = test { + val Foo = TypeName("Foo") + assert(q"trait $Foo" ≈ q"trait Foo") + } + + property("unquote type params into trait def") = test { + val tparams = q"type A" :: q"type B" :: Nil + assert(q"trait Foo[..$tparams]" ≈ q"trait Foo[A, B]") + } + + property("unquote defs into trait body") = test { + val body = q"def foo" :: q"val bar: Baz" :: Nil + assert(q"trait Foo { ..$body }" ≈ q"trait Foo { def foo; val bar: Baz }") + } + + property("unquote parents into trait") = test { + val parents = tq"A" :: tq"B" :: Nil + assert(q"trait Foo extends ..$parents" ≈ q"trait Foo extends A with B") + } + + property("unquote early valdef into trait") = test { + val x = q"val x: Int = 1" + assertEqAst(q"trait T extends { $x } with Any", "trait T extends { val x: Int = 1} with Any") + } + + property("construct trait with early valdef") = test { + assertEqAst(q"trait T extends { val x: Int = 1 } with Any", "trait T extends { val x: Int = 1 } with Any") + } + + property("unquote defs into early block") = test { + val defs = q"val x: Int = 0" :: q"type Foo = Bar" :: Nil + assert(q"trait T extends { ..$defs } with Bippy" ≈ + q"trait T extends { val x: Int = 0; type Foo = Bar} with Bippy") + } + + property("fail on splicing of non-valid early tree") = test { + val defn = q"def x: Int = 0" + assertThrows[IllegalArgumentException] { q"trait T extends { $defn } with Bar" } + } +} + +trait TypeDefConstruction { self: QuasiquoteProperties => + property("unquote type name into typedef") = forAll { (name1: TypeName, name2: TypeName) => + q"type $name1 = $name2" ≈ TypeDef(Modifiers(), name1, List(), Ident(name2)) + } + + property("unquote type names into type bounds") = forAll { (T1: TypeName, T2: TypeName, T3: TypeName) => + q"type $T1 >: $T2 <: $T3" ≈ + TypeDef( + Modifiers(DEFERRED), T1, List(), + TypeBoundsTree(Ident(T2), Ident(T3))) + } + + property("unquote trees names into type bounds") = forAll { (T: TypeName, t1: Tree, t2: Tree) => + q"type $T >: $t1 <: $t2" ≈ + TypeDef( + Modifiers(DEFERRED), T, List(), + TypeBoundsTree(t1, t2)) + } + + property("unquote tparams into typedef (1)") = forAll { (T: TypeName, targs: List[TypeDef], t: Tree) => + q"type $T[..$targs] = $t" ≈ TypeDef(Modifiers(), T, targs, t) + } + + property("unquote tparams into typedef (2)") = forAll { (T: TypeName, targs1: List[TypeDef], targs2: List[TypeDef], t: Tree) => + q"type $T[..$targs1, ..$targs2] = $t" ≈ TypeDef(Modifiers(), T, targs1 ++ targs2, t) + } + + property("unquote tparams into typedef (3)") = forAll { (T: TypeName, targ: TypeDef, targs: List[TypeDef], t: Tree) => + q"type $T[$targ, ..$targs] = $t" ≈ TypeDef(Modifiers(), T, targ :: targs, t) + } + + property("unquote typename into typedef with default bounds") = forAll { (T1: TypeName, T2: TypeName, t: Tree) => + q"type $T1[$T2 >: Any <: Nothing] = $t" ≈ + TypeDef( + Modifiers(), T1, + List(TypeDef( + Modifiers(PARAM), T2, + List(), + TypeBoundsTree( + Ident(TypeName("Any")), + Ident(TypeName("Nothing"))))), + t) + } + + property("unquote type names into compound type tree") = forAll { (T: TypeName, A: TypeName, B: TypeName) => + q"type $T = $A with $B" ≈ + TypeDef( + Modifiers(), T, List(), + CompoundTypeTree( + Template(List(Ident(A), Ident(B)), ValDef(Modifiers(PRIVATE), termNames.WILDCARD, TypeTree(), EmptyTree), List()))) + } + + property("unquote trees into existential type tree") = forAll { + (T1: TypeName, T2: TypeName, X: TypeName, Lo: TypeName, Hi: TypeName) => + + q"type $T1 = $T2[$X] forSome { type $X >: $Lo <: $Hi }" ≈ + TypeDef( + Modifiers(), T1, List(), + ExistentialTypeTree( + AppliedTypeTree(Ident(T2), List(Ident(X))), + List( + TypeDef(Modifiers(DEFERRED), X, List(), TypeBoundsTree(Ident(Lo), Ident(Hi)))))) + } + + property("unquote tree into singleton type tree") = forAll { (name: TypeName, t: Tree) => + q"type $name = $t.type" ≈ q"type $name = ${SingletonTypeTree(t)}" + } + + property("unquote into applied type tree") = forAll { (T1: TypeName, T2: TypeName, args: List[Tree]) => + q"type $T1 = $T2[..$args]" ≈ + TypeDef(Modifiers(), T1, List(), + if(args.nonEmpty) AppliedTypeTree(Ident(T2), args) else Ident(T2)) + } +} + +trait ValDefConstruction { self: QuasiquoteProperties => + property("unquote into val") = forAll { (name: TermName, tpt: Tree, rhs: Tree) => + q"val $name: $tpt = $rhs" ≈ ValDef(Modifiers(), name, tpt, rhs) + } + + property("unquote into var") = forAll { (name: TermName, tpt: Tree, rhs: Tree) => + q"var $name: $tpt = $rhs" ≈ ValDef(Modifiers(MUTABLE), name, tpt, rhs) + } + + // left tree is not a pattern due to Si-8211 + property("SI-8202") = test { + assertEqAst(q"val (x: Int) = 1", "val x: Int = 1") + } +} + +trait PatDefConstruction { self: QuasiquoteProperties => + property("unquote pattern into pat def") = test { + val pat = pq"(a, b)" + assertEqAst(q"val $pat = (1, 2)", "val (a, b) = (1, 2)") + val tpt = tq"(Int, Int)" + assertEqAst(q"val $pat: $tpt = (1, 2)", "val (a, b): (Int, Int) = (1, 2)") + } + + property("unquote pattern into pat def within other pattern (1)") = test { + val pat = pq"(a, b)" + assertEqAst(q"val Foo($pat) = Foo((1, 2))", "val Foo((a, b)) = Foo((1, 2))") + val tpt = tq"Foo" + assertEqAst(q"val Foo($pat): $tpt = Foo((1, 2))", "val Foo((a, b)): Foo = Foo((1, 2))") + } + + property("unquote patterns into pat def within other pattern (2)") = test { + val pat1 = pq"(a, b)"; val pat2 = pq"(c, d)" + assertEqAst(q"val ($pat1, $pat2) = ((1, 2), (3, 4))", "val ((a, b), (c, d)) = ((1, 2), (3, 4))") + val tpt = tq"((Int, Int), (Int, Int))" + assertEqAst(q"val ($pat1, $pat2): $tpt = ((1, 2), (3, 4))", "val ((a, b), (c, d)): ((Int, Int), (Int, Int)) = ((1, 2), (3, 4))") + } + + property("unquote pattern without free vars into pat def") = test { + val pat = pq"((1, 2), 3)" + assertEqAst(q"val $pat = ((1, 2), 3)", "{ val ((1, 2), 3) = ((1, 2), 3) }") + val tpt = tq"((Int, Int), Int)" + assertEqAst(q"val $pat: $tpt = ((1, 2), 3)","{ val ((1, 2), 3): ((Int, Int), Int) = ((1, 2), 3) }") + } + + // won't result into pattern match due to SI-8211 + property("unquote typed pat into pat def") = test { + val pat = pq"x: Int" + assertEqAst(q"val $pat = 2", "{ val x: Int = 2 }") + } +} + +trait MethodConstruction { self: QuasiquoteProperties => + property("unquote paramss into defdef") = test { + val paramss = List(q"val x: Int") :: List(q"val y: Int = 1") :: Nil + assert(q"def foo(...$paramss)" ≈ parse("def foo(x: Int)(y: Int = 1)")) + } + + property("unquote tparams into defdef") = test { + val tparams = q"type A" :: q"type B <: Bippy" :: Nil + assert(q"def foo[..$tparams]" ≈ parse("def foo[A, B <: Bippy]")) + } + + def assertSameAnnots(tree: {def mods: Modifiers}, annots: List[Tree]) = + assert(tree.mods.annotations ≈ annots, + s"${tree.mods.annotations} =/= ${annots}") + + def assertSameAnnots(tree1: {def mods: Modifiers}, tree2: {def mods: Modifiers}) = + assert(tree1.mods.annotations ≈ tree2.mods.annotations, + s"${tree1.mods.annotations} =/= ${tree2.mods.annotations}") + + property("unquote type name into annotation") = test { + val name = TypeName("annot") + assertSameAnnots(q"@$name def foo", List(q"new $name")) + } + + property("unquote ident into annotation") = test { + val name = TypeName("annot") + val ident = Ident(name) + assertSameAnnots(q"@$ident def foo", List(q"new $name")) + } + + property("unquote idents into annotation") = test { + val idents = List(Ident(TypeName("annot1")), Ident(TypeName("annot2"))) + assertSameAnnots(q"@..$idents def foo", + idents.map { ident => Apply(Select(New(ident), termNames.CONSTRUCTOR), List()) }) + } + + property("unquote constructor calls into annotation") = test { + val ctorcalls = List(q"new a1", q"new a2") + assertSameAnnots(q"@..$ctorcalls def foo", ctorcalls) + } + + property("unquote multiple annotations (1)") = test { + val annot1 = q"new a1" + val annot2 = q"new a2" + val res = q"@$annot1 @$annot2 def foo" + assertSameAnnots(res, List(annot1, annot2)) + } + + property("unquote multiple annotations (2)") = test { + val annot1 = q"new a1" + val annots = List(q"new a2", q"new a3") + val res = q"@$annot1 @..$annots def foo" + assertSameAnnots(res, annot1 :: annots) + } + + property("unquote annotations with arguments (1)") = test { + val a = q"new a(x)" + assertSameAnnots(q"@$a def foo", q"@a(x) def foo") + } + + property("unquote annotations with arguments (2)") = test { + val a = TypeName("a") + assertSameAnnots(q"@$a(x) def foo", q"@a(x) def foo") + } + + property("unquote annotations with arguments (3") = test { + val a = Ident(TypeName("a")) + assertSameAnnots(q"@$a(x) def foo", q"@a(x) def foo") + } + + property("unquote improper tree into annot") = test { + val t = tq"Foo[Baz]" + assertThrows[IllegalArgumentException] { + q"@$t def foo" + } + } + + property("can't unquote annotations with arguments specified twice") = test { + val a = q"new a(x)" + assertThrows[IllegalArgumentException] { + q"@$a(y) def foo" + } + } + + property("unquote annotation with targs") = test { + val a = q"new Foo[A, B]" + assertEqAst(q"@$a def foo", "@Foo[A,B] def foo") + } + + property("unquote annotation with multiple argument lists") = test { + val a = q"new Foo(a)(b)" + assertEqAst(q"@$a def foo", "@Foo(a)(b) def foo") + } +} + +trait PackageConstruction { self: QuasiquoteProperties => + property("unquote select into package name") = test { + val name = q"foo.bar" + assertEqAst(q"package $name { }", "package foo.bar { }") + } + + property("splice name into package name") = test{ + val name = TermName("bippy") + assertEqAst(q"package $name { }", "package bippy { }") + } + + property("unquote members into package body") = test { + val members = q"class C" :: q"object O" :: Nil + assertEqAst(q"package foo { ..$members }", "package foo { class C; object O }") + } + + property("unquote illegal members into package body") = test { + val f = q"def f" + assertThrows[IllegalArgumentException] { q"package foo { $f }" } + val v = q"val v = 0" + assertThrows[IllegalArgumentException] { q"package foo { $v }" } + val expr = q"x + 1" + assertThrows[IllegalArgumentException] { q"package foo { $expr }" } + } + + property("unquote name into package object") = test { + val foo = TermName("foo") + assertEqAst(q"package object $foo", "package object foo") + } + + property("unquote parents into package object") = test { + val parents = tq"a" :: tq"b" :: Nil + assertEqAst(q"package object foo extends ..$parents", + "package object foo extends a with b") + } + + property("unquote members into package object") = test { + val members = q"def foo" :: q"val x = 1" :: Nil + assertEqAst(q"package object foo { ..$members }", + "package object foo { def foo; val x = 1 }") + } + + property("unquote early def into package object") = test { + val edefs = q"val x = 1" :: q"type I = Int" :: Nil + assertEqAst(q"package object foo extends { ..$edefs } with Any", + "package object foo extends { val x = 1; type I = Int } with Any") + } +} + +trait DefConstruction { self: QuasiquoteProperties => + property("construct implicit args (1)") = test { + val x = q"val x: Int" + assertEqAst(q"def foo(implicit $x) = x", "def foo(implicit x: Int) = x") + } + + property("construct implicit args (2)") = test { + val xs = q"val x1: Int" :: q"val x2: Long" :: Nil + assertEqAst(q"def foo(implicit ..$xs) = x1 + x2", "def foo(implicit x1: Int, x2: Long) = x1 + x2") + } +} + +trait ImportConstruction { self: QuasiquoteProperties => + property("construct wildcard import") = test { + val sel = pq"_" + assert(q"import foo.$sel" ≈ q"import foo._") + } + + property("construct named import") = test { + val sel = pq"bar" + assert(q"import foo.$sel" ≈ q"import foo.bar") + } + + property("construct renaming import") = test { + val sel = pq"bar -> baz" + assert(q"import foo.$sel" ≈ q"import foo.{bar => baz}") + } + + property("construct unimport import") = test { + val sels = pq"poison -> _" :: pq"_" :: Nil + assert(q"import foo.{..$sels}" ≈ q"import foo.{poison => _, _}") + } + + property("construct mixed import") = test { + val sels = pq"a -> b" :: pq"c -> _" :: pq"_" :: Nil + assert(q"import foo.{..$sels}" ≈ q"import foo.{a => b, c => _, _}") + } +} |