FullParameterization
Related Docs:
object FullParameterization
| package transform
If references to original symbol referenced from within fully parameterized method
derived should be rewired to some fully parameterized method, the rewiring target symbol,
otherwise NoSymbol.
If references to original symbol referenced from within fully parameterized method
derived should be rewired to some fully parameterized method, the rewiring target symbol,
otherwise NoSymbol.
A forwarder expression which calls derived, passing along
A forwarder expression which calls derived, passing along
abstractOverClass the type parameters and enclosing class parameters of originalDef,this of the enclosing class,originalDef.
Given an instance method definition originalDef, return a
fully parameterized method definition derived from originalDef, which
has derived as symbol and fullyParameterizedType(originalDef.symbol.info)
as info.
Given an instance method definition originalDef, return a
fully parameterized method definition derived from originalDef, which
has derived as symbol and fullyParameterizedType(originalDef.symbol.info)
as info.
abstractOverClass defines weather the DefDef should abstract over type parameters
of class that contained original defDef
Converts the type info of a member of class clazz to a method type that
takes the this of the class and any type parameters of the class
as additional parameters.
Converts the type info of a member of class clazz to a method type that
takes the this of the class and any type parameters of the class
as additional parameters. Example:
class Foo[+A <: AnyRef](val xs: List[A]) extends AnyVal { def baz[B >: A](x: B): List[B] = ... }
leads to:
object Foo { def extension$baz[B >: A <: Any, A >: Nothing <: AnyRef]($this: Foo[A])(x: B): List[B] }
If a self type is present, $this has this self type as its type.
if true, include the type parameters of the class in the method's list of type parameters.
if true, require created $this to be $this: (Foo[A] & Foo,this). This is needed if created member stays inside scope of Foo(as in tailrec)
If references to some original symbol from given tree node within fully parameterized method
derived should be rewired to some fully parameterized method, the rewiring target symbol,
otherwise NoSymbol.
If references to some original symbol from given tree node within fully parameterized method
derived should be rewired to some fully parameterized method, the rewiring target symbol,
otherwise NoSymbol. By default implemented as
rewiredTarget(tree.symbol, derived)
but can be overridden.
Provides methods to produce fully parameterized versions of instance methods, where the
thisof the enclosing class is abstracted out in an extra leading$thisparameter and type parameters of the class become additional type parameters of the fully parameterized method.Example usage scenarios are:
Note that the methods lift out type parameters of the class containing the instance method, but not type parameters of enclosing classes. The fully instantiated method therefore needs to be put in a scope "close" to the original method, i.e. they need to share the same outer pointer. Examples of legal positions are: in the companion object, or as a local method inside the original method.
Note: The scheme does not handle yet methods where type parameter bounds depend on value parameters of the enclosing class, as in:
class C(val a: String) extends AnyVal { def foo[U <: a.type]: Unit = ... }
The expansion of method
foowould lead todef foo$extension[U <: $this.a.type]($this: C): Unit = ...
which is not typable. Not clear yet what to do. Maybe allow PolyTypes to follow method parameters and translate to the following:
def foo$extension($this: C)[U <: $this.a.type]: Unit = ...
class-dependent-extension-method.scala in pending/pos.