diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/typechecker/Taggings.scala')
| -rw-r--r-- | src/compiler/scala/tools/nsc/typechecker/Taggings.scala | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Taggings.scala b/src/compiler/scala/tools/nsc/typechecker/Taggings.scala deleted file mode 100644 index bbcfa2920b..0000000000 --- a/src/compiler/scala/tools/nsc/typechecker/Taggings.scala +++ /dev/null @@ -1,71 +0,0 @@ -package scala.tools.nsc -package typechecker - -trait Taggings { - self: Analyzer => - - import global._ - import definitions._ - - trait Tagging { - self: Typer => - - private def resolveTag(taggedTp: Type, pos: Position) = beforeTyper { - inferImplicit( - EmptyTree, - taggedTp, - /*reportAmbiguous =*/ true, - /*isView =*/ false, - /*context =*/ context, - /*saveAmbiguousDivergent =*/ true, - /*pos =*/ pos - ).tree - } - - /** Finds in scope or materializes an ArrayTag. - * Should be used instead of ClassTag or ClassManifest every time compiler needs to create an array. - * - * @param tp Type we're looking an ArrayTag for, e.g. resolveArrayTag(IntClass.tpe, pos) will look for ArrayTag[Int]. - * @param pos Position for error reporting. Please, provide meaningful value. - * - * @returns Tree that represents an `scala.reflect.ArrayTag` for `tp` if everything is okay. - * EmptyTree if the result contains unresolved (i.e. not spliced) type parameters and abstract type members. - */ - def resolveArrayTag(tp: Type, pos: Position): Tree = { - val taggedTp = appliedType(ArrayTagClass.typeConstructor, List(tp)) - resolveTag(taggedTp, pos) - } - - /** Finds in scope or materializes an ErasureTag (if `concrete` is false) or a ClassTag (if `concrete` is true). - * Should be used instead of ClassTag or ClassManifest every time compiler needs to persist an erasure. - * - * @param tp Type we're looking an ErasureTag for, e.g. resolveErasureTag(IntClass.tpe, pos, true) will look for ClassTag[Int]. - * @param pos Position for error reporting. Please, provide meaningful value. - * @param concrete If true then the result must not contain unresolved (i.e. not spliced) type parameters and abstract type members. - * If false then the function will always succeed (abstract types will be erased to their upper bounds). - * - * @returns Tree that represents an `scala.reflect.ErasureTag` for `tp` if everything is okay. - * EmptyTree if `concrete` is true and the result contains unresolved (i.e. not spliced) type parameters and abstract type members. - */ - def resolveErasureTag(tp: Type, pos: Position, concrete: Boolean): Tree = { - val taggedTp = appliedType(if (concrete) ClassTagClass.typeConstructor else ???, List(tp)) - resolveTag(taggedTp, pos) - } - - /** Finds in scope or materializes a TypeTag (if `concrete` is false) or a ConcreteTypeTag (if `concrete` is true). - * - * @param pre Prefix that represents a universe this type tag will be bound to. - * @param tp Type we're looking a TypeTag for, e.g. resolveTypeTag(reflectMirrorPrefix, IntClass.tpe, pos, false) will look for scala.reflect.mirror.TypeTag[Int]. - * @param pos Position for error reporting. Please, provide meaningful value. - * @param concrete If true then the result must not contain unresolved (i.e. not spliced) type parameters and abstract type members. - * If false then the function will always succeed (abstract types will be reified as free types). - * - * @returns Tree that represents a `scala.reflect.TypeTag` for `tp` if everything is okay. - * EmptyTree if `concrete` is true and the result contains unresolved (i.e. not spliced) type parameters and abstract type members. - */ - def resolveTypeTag(pre: Type, tp: Type, pos: Position, concrete: Boolean): Tree = { - val taggedTp = appliedType(singleType(pre, pre member (if (concrete) ConcreteTypeTagClass else TypeTagClass).name), List(tp)) - resolveTag(taggedTp, pos) - } - } -}
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