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handle constant types

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This commit is contained in:
Mark Harrah
2011-02-14 18:59:54 -05:00
parent a3a81dc26e
commit cc06667f3e
7 changed files with 39 additions and 10 deletions
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compile/api/ShowAPI.scala
+5 -1
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@@ -169,13 +169,14 @@ trait ShowDefinition
}
trait ShowType
{
implicit def showType(implicit s: Show[SimpleType], a: Show[Annotated], st: Show[Structure], e: Show[Existential], po: Show[Polymorphic]): Show[Type] =
implicit def showType(implicit s: Show[SimpleType], a: Show[Annotated], st: Show[Structure], c: Show[Constant], e: Show[Existential], po: Show[Polymorphic]): Show[Type] =
new Show[Type]
{
def show(t: Type) =
t match
{
case q: SimpleType => s.show(q)
case q: Constant => c.show(q)
case q: Annotated => a.show(q)
case q: Structure => st.show(q)
case q: Existential => e.show(q)
@@ -219,6 +220,8 @@ trait ShowTypes
new Show[Projection] { def show(p: Projection) = t.show(p.prefix) + "#" + p.id }
implicit def showParameterized(implicit t: Show[Type]): Show[Parameterized] =
new Show[Parameterized] { def show(p: Parameterized) = t.show(p.baseType) + mapSeq(p.typeArguments, t).mkString("[", ", ", "]") }
implicit def showConstant(implicit t: Show[Type]): Show[Constant] =
new Show[Constant] { def show(c: Constant) = t.show(c.baseType) + "(" + c.value + ")" }
implicit def showExistential(implicit t: Show[Type], tp: Show[TypeParameter]): Show[Existential] =
new Show[Existential] {
def show(e: Existential) =
@@ -291,6 +294,7 @@ object DefaultShowAPI extends ShowBase with ShowBasicTypes with ShowValueParamet
implicit lazy val showSimple: Show[SimpleType] = new ShowLazy(Cyclic.showSimpleType)
implicit lazy val showAnnotated: Show[Annotated] = Cyclic.showAnnotated
implicit lazy val showExistential: Show[Existential] = Cyclic.showExistential
implicit lazy val showConstant: Show[Constant] = Cyclic.showConstant
implicit lazy val showParameterized: Show[Parameterized] = Cyclic.showParameterized
implicit lazy val showTypeParameters: Show[Seq[TypeParameter]] = new ShowLazy(Cyclic.showTypeParameters)