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Diffstat (limited to 'test/scalacheck/scala/reflect/quasiquotes/TypecheckedProps.scala')
| -rw-r--r-- | test/scalacheck/scala/reflect/quasiquotes/TypecheckedProps.scala | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/test/scalacheck/scala/reflect/quasiquotes/TypecheckedProps.scala b/test/scalacheck/scala/reflect/quasiquotes/TypecheckedProps.scala new file mode 100644 index 0000000000..4646388c86 --- /dev/null +++ b/test/scalacheck/scala/reflect/quasiquotes/TypecheckedProps.scala @@ -0,0 +1,217 @@ +package scala.reflect.quasiquotes + +import org.scalacheck._, Prop._, Gen._, Arbitrary._ +import scala.reflect.runtime.universe._, Flag._, internal.reificationSupport._ + +object TypecheckedProps extends QuasiquoteProperties("typechecked") + with TypecheckedTypes { + property("tuple term") = test { + val q"(..$elements)" = typecheck(q"(1, 2)") + assert(elements ≈ List(q"1", q"2")) + } + + property("for/for-yield") = test { + val enums = fq"x <- xs" :: fq"x1 = x + 1" :: fq"if x1 % 2 == 0" :: Nil + val body = q"x1" + val xs = q"val xs = List(1, 2, 3)" + val q"$_; for(..$enums0) yield $body0" = typecheck(q"$xs; for(..$enums) yield $body") + assert(enums0 ≈ enums) + assert(body0 ≈ body) + val q"$_; for(..$enums1) $body1" = typecheck(q"$xs; for(..$enums) $body") + assert(enums1 ≈ enums) + assert(body1 ≈ body) + } + + property("for .filter instead of .withFilter") = test { + val enums = fq"foo <- new Foo" :: fq"if foo != null" :: Nil + val body = q"foo" + val q"$_; for(..$enums1) yield $body1" = typecheck(q""" + class Foo { def map(f: Any => Any) = this; def withFilter(cond: Any => Boolean) = this } + for(..$enums) yield $body + """) + assert(enums1 ≈ enums) + assert(body1 ≈ body) + } + + property("extract UnApply (1)") = test { + val q"object $_ { $_; $_; $m }" = typecheck(q""" + object Test { + class Cell(val x: Int) + object Cell { def unapply(c: Cell) = Some(c.x) } + new Cell(0) match { case Cell(v) => v } + } + """) + val q"$_ match { case $f(..$args) => $_ }" = m + assert(f ≈ pq"Test.this.Cell") + assert(args ≈ List(pq"v")) + } + + property("extract UnApply (2)") = test { + val q"object $_ { $_; $m }" = typecheck(q""" + object Test { + case class Cell(val x: Int) + new Cell(0) match { case Cell(v) => v } + } + """) + val q"$_ match { case ${f: TypeTree}(..$args) => $_ }" = m + assert(f.original ≈ pq"Test.this.Cell") + assert(args ≈ List(pq"v")) + } + + property("extract inferred val type") = test { + val typechecked = typecheck(q"val x = 42") + val q"val x = 42" = typechecked + val q"val x: ${tq""} = 42" = typechecked + val q"val x: ${t: Type} = 42" = typechecked + } + + property("class with param (1)") = test { + val paramName = TermName("x") + val q"class $_($param)" = typecheck(q"class Test(val $paramName: Int)") + + assert(param.name == paramName) + } + + property("class with param (2)") = test { + val paramName = TermName("y") + val q"{class $_($param)}" = typecheck(q"class Test(val $paramName: Int = 3)") + + assert(param.name == paramName) + assert(param.rhs ≈ q"3") + } + + property("class with params") = test { + val pName1 = TermName("x1") + val pName2 = TermName("x2") + val q"{class $_($param1)(..$params2)}" = typecheck(q"class Test(val x0: Float)(val $pName1: Int = 3, $pName2: String)") + + val List(p1, p2, _*) = params2 + + assert(p1.name == pName1) + assert(p2.name == pName2) + assert(params2.size == 2) + } + + property("implicit class") = test { + val clName = TypeName("Test") + val paramName = TermName("x") + val q"{implicit class $name($param)}" = typecheck(q"implicit class $clName(val $paramName: String)") + + assert(name == clName) + assert(param.name == paramName) + } + + property("block with lazy") = test { + val lazyName = TermName("x") + val lazyRhsVal = 42 + val lazyRhs = Literal(Constant(lazyRhsVal)) + val q"{ $mods val $pname: $_ = $rhs }" = typecheck(q"{lazy val $lazyName = $lazyRhsVal}") + + assert(pname == lazyName) + assert(rhs ≈ lazyRhs) + } + + property("class with lazy") = test { + val clName = TypeName("Test") + val paramName = TermName("x") + val q"class $name{lazy val $pname = $_}" = typecheck(q"class $clName {lazy val $paramName = 42}") + + assert(name == clName) + assert(pname == paramName) + } + + property("case class with object") = test { + val defName = TermName("z") + val defRhsVal = 42 + val defRhs = Literal(Constant(defRhsVal)) + val q"object $_{ $_; object $_ extends ..$_ {def $name = $rhs} }" = + typecheck(q""" + object Test{ + case class C(x: Int) { def y = x }; + object C { def $defName = $defRhsVal } + }""") + + assert(name == defName) + assert(rhs ≈ defRhs) + } + + property("partial function") = test { + val q"{ case ..$cases }: $ascr" = typecheck(q"{ case 1 => () }: PartialFunction[Int, Unit]") + assert(cases ≈ q"{ case 1 => () }".cases) + } +} + +trait TypecheckedTypes { self: QuasiquoteProperties => + property("type ident") = test { + val q"$_; type $_ = $tpt" = typecheck(q"class C; type T = C") + val tq"C" = tpt + } + + property("type select") = test { + val tq"scala.Int" = typecheckTyp(tq"Int") + } + + property("this type select") = test { + val q"class $_ { $_; type $_ = $tpt }" = typecheck(q"class C { type A = Int; type B = this.A }") + val tq"this.$name" = tpt + val TypeName("A") = name + } + + property("super type select") = test { + val q"$_; class $_ extends $_ { type $_ = $tpt }" = + typecheck(q"class C1 { type A = Int }; class C2 extends C1 { type B = super[C1].A }") + val tq"$empty.super[$c1].$a" = tpt + val TypeName("") = empty + val TypeName("C1") = c1 + val TypeName("A") = a + } + + property("applied type") = test { + val tt = typecheckTyp(tq"Map[Int, Int]") + val tq"$tpt[..$tpts]" = tt + val tq"scala.Predef.Map" = tpt + val List(tq"scala.Int", tq"scala.Int") = tpts + } + + property("tuple type") = test { + val tq"(..$els0)" = typecheckTyp(tq"Unit") + assert(els0.isEmpty) + val tq"(..$els1)" = typecheckTyp(tq"(Int, Int)") + val List(tq"scala.Int", tq"scala.Int") = els1 + } + + property("function type") = test { + val tq"(..$argtpes) => $restpe" = typecheckTyp(tq"(Int, Int) => Int") + val List(tq"scala.Int", tq"scala.Int") = argtpes + val tq"scala.Int" = restpe + } + + property("compound type") = test { + val tq"..$parents { ..$defns }" = typecheckTyp(tq"Int { def x: Int }") + val List(tq"Int") = parents + val List(q"def x: Int") = defns + } + + property("singleton type") = test { + val tq"$ref.type" = typecheckTyp(tq"scala.Predef.type") + val q"scala.Predef" = ref + } + + property("type projection") = test { + val tq"$tpt#$name" = typecheckTyp(tq"({ type T = Int })#T") + val TypeName("T") = name + val tq"{ type T = Int }" = tpt + } + + property("annotated type") = test { + val tq"$tpt @$annot" = typecheckTyp(tq"Int @unchecked") + val tq"scala.Int" = tpt + val tq"unchecked" = annot + } + + property("existential type") = test { + val tq"$tpt forSome { ..$defns }" = typecheckTyp(tq"T forSome { type T }") + val tq"T" = tpt + val q"type T" :: Nil = defns + } +} |