ElimByName

This phase eliminates ExprTypes => T as types of method parameter references, and replaces them b nullary function types. More precisely:

For the types of parameter symbols:

   => T       ==>    () => T

For cbn parameter values

   x          ==>    x()

Note: This scheme to have inconsistent types between method types (whose formal types are still ExprTypes and parameter valdefs (which are now FunctionTypes) is not pretty. There are two other options which have been abandoned or not yet pursued.

Option 1: Transform => T to () => T also in method and function types. The problem with this is that is that it requires to look at every type, and this forces too much, causing Cyclic Reference errors. Abandoned for this reason.

Option 2: Merge ElimByName with erasure, or have it run immediately before. This has not been tried yet.

Companion
object
class MiniPhase
class Phase
class Object
trait Matchable
class Any

Value members

Concrete methods

override
Definition Classes
override
Definition Classes
override
Definition Classes
override
def transformIdent(tree: Ident)(using Context): Tree
Definition Classes
def transformInfo(tp: Type, sym: Symbol)(using Context): Type
override
def transformSelect(tree: Select)(using Context): Tree
Definition Classes
override
Definition Classes
override
def transformValDef(tree: ValDef)(using Context): Tree
Definition Classes

Inherited methods

final
def <=(that: Phase): Boolean
Inherited from
Phase

If set, implicit search is enabled

If set, implicit search is enabled

Inherited from
Phase

Can this transform change the base types of a type?

Can this transform change the base types of a type?

Inherited from
Phase

Can this transform create or delete non-private members?

Can this transform create or delete non-private members?

Inherited from
Phase
def checkPostCondition(tree: Tree)(using Context): Unit

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

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

Inherited from
Phase
Inherited from
Phase
Inherited from
Phase
final
Inherited from
Phase
Inherited from
Phase
protected

If denotation had an ExprType before, it now gets a function type

If denotation had an ExprType before, it now gets a function type

Inherited from
TransformByNameApply
final
Inherited from
Phase
final
Inherited from
Phase
def id: Int

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.

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.

Inherited from
Phase
Inherited from
Phase
protected
def isByNameRef(tree: Tree)(using Context): Boolean
Inherited from
TransformByNameApply

Output should be checkable by TreeChecker

Output should be checkable by TreeChecker

Inherited from
Phase
Inherited from
Phase
Inherited from
Phase

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).

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).

Inherited from
Phase
final
Inherited from
Phase
Inherited from
Phase
def lastPhaseId(using Context): Int

The last phase during which the transformed denotations are valid

The last phase during which the transformed denotations are valid

Inherited from
DenotTransformer
def mkByNameClosure(arg: Tree, argType: Type)(using Context): Tree
Inherited from
TransformByNameApply
final
def monitor(doing: String)(body: => Unit)(using Context): Unit
Inherited from
Phase
final
def next: Phase
Inherited from
Phase
Inherited from
Phase
Inherited from
Phase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForBind(tree: Bind)(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForIf(tree: If)(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForNew(tree: New)(using Context): Context
Inherited from
MiniPhase
def prepareForOther(tree: Tree)(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForStats(trees: List[Tree])(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForThis(tree: This)(using Context): Context
Inherited from
MiniPhase
def prepareForTry(tree: Try)(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def prepareForUnit(tree: Tree)(using Context): Context
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
final
def prev: Phase
Inherited from
Phase
final
Inherited from
Phase
final override
Definition Classes
Inherited from
MiniPhase

If set, use relaxed typing for all phases in group

If set, use relaxed typing for all phases in group

Inherited from
MiniPhase
override
def run(using Context): Unit
Definition Classes
Inherited from
MiniPhase
Inherited from
Phase

List of names of phases that should precede this phase

List of names of phases that should precede this phase

Inherited from
Phase

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

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

Inherited from
MiniPhase
Inherited from
Phase
Inherited from
Phase
Inherited from
Phase
protected
Inherited from
MiniPhase
def start: Int
Inherited from
Phase
override
Definition Classes
Phase -> Any
Inherited from
Phase
def transformAllDeep(tree: Tree)(using Context): Tree

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

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

Inherited from
MiniPhase
Inherited from
MiniPhase
override
def transformApply(tree: Apply)(using Context): Tree
Definition Classes
Inherited from
TransformByNameApply
def transformAssign(tree: Assign)(using Context): Tree
Inherited from
MiniPhase
def transformBind(tree: Bind)(using Context): Tree
Inherited from
MiniPhase
def transformBlock(tree: Block)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformDefDef(tree: DefDef)(using Context): Tree
Inherited from
MiniPhase
def transformFollowing(tree: Tree)(using Context): Tree

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

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

Inherited from
MiniPhase

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

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

Inherited from
MiniPhase
def transformIf(tree: If)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformMatch(tree: Match)(using Context): Tree
Inherited from
MiniPhase
def transformNew(tree: New)(using Context): Tree
Inherited from
MiniPhase
def transformOther(tree: Tree)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformReturn(tree: Return)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformStats(trees: List[Tree])(using Context): List[Tree]
Inherited from
MiniPhase
def transformSuper(tree: Super)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformThis(tree: This)(using Context): Tree
Inherited from
MiniPhase
def transformTry(tree: Try)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformTyped(tree: Typed)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
def transformUnit(tree: Tree)(using Context): Tree
Inherited from
MiniPhase
Inherited from
MiniPhase
def validFor(using Context): Period

The validity period of the transformed denotations in the given context

The validity period of the transformed denotations in the given context

Inherited from
DenotTransformer

Inherited fields

Inherited from
MiniPhase