ExtensionMethods

Can this transform create or delete non-private members?

A name given to the Phase that can be used to debug the compiler. For instance, it is possible to print trees after a given phase using:

$ ./bin/scalac -Xprint:<phaseNameHere> sourceFile.scala

List of names of phases that should precede this phase

List of names of phases that should have finished their processing of all compilation units before this phase starts

The transformation method

If set, implicit search is enabled

Can this transform change the base types of a type?

Can this transform change the parents of a class?

Check what the phase achieves, to be called at any point after it is finished.

A forwarder expression which calls derived, passing along

• if abstractOverClass the type parameters and enclosing class parameters of originalDef`,
• the this of the enclosing class,
• the value parameters of the original method 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. 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. 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.

The sequence position of this phase in the given context where 0 is reserved for NoPhase and the first real phase is at position 1. -1 if the phase is not installed in the context.

Output should be checkable by TreeChecker

Is this phase the standard typerphase? True for TyperPhase, but not for other first phases (such as FromTasty or Parser). The predicate is tested in some places that perform checks and corrections. It's different from ctx.isAfterTyper (and cheaper to test).

The last phase during which the transformed denotations are valid

If set, allow missing or superfluous arguments in applications and type applications.

If set, use relaxed typing for all phases in group

Convert a compilation unit's tree to a string; can be overridden

Returns a string representation of the object.

The default representation is platform dependent.

Transform tree using all transforms of current group (including this one)

Transform single node using all transforms following the current one in this group

Transform tree using all transforms following the current one in this group

The validity period of the transformed denotations in the given context