CheckStatic

class CheckStatic extends MiniPhase

A transformer that check that requirements of Static fields\methods are implemented:

  1. Only objects can have members annotated with @static
  2. The fields annotated with @static should precede any non-@static fields. This ensures that we do not introduce surprises for users in initialization order.
  3. If a member foo of an object C is annotated with @static, the companion class C is not allowed to define term members with name foo.
  4. If a member foo of an object C is annotated with @static, the companion class C is not allowed to inherit classes that define a term member with name foo.
  5. Only @static methods and vals are supported in companions of traits. Java8 supports those, but not vars, and JavaScript does not have interfaces at all.
  6. @static Lazy vals are currently unsupported.
Companion:
object
class MiniPhase
class Phase
class Object
trait Matchable
class Any

Value members

Concrete methods

override def description: String
Definition Classes
override def phaseName: String

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:

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
Definition Classes
override def transformTemplate(tree: Template)(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

Can this transform change the parents of a class?

Can this transform change the parents of a class?

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
final def erasedTypes: Boolean
Inherited from:
Phase
Inherited from:
Phase
final def flatClasses: Boolean
Inherited from:
Phase
final def hasNext: Boolean
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

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 def iterator: Iterator[Phase]
Inherited from:
Phase
Inherited from:
Phase
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 def prevMega(using Context): Phase
Inherited from:
Phase
final def refChecked: Boolean
Inherited from:
Phase
final override def relaxedTyping: Boolean

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

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

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 def singletonGroup: MegaPhase
Inherited from:
MiniPhase
def start: Int
Inherited from:
Phase
override def toString: String

Returns a string representation of the object.

Returns a string representation of the object.

The default representation is platform dependent.

Returns:

a string representation of the object.

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
def transformApply(tree: Apply)(using Context): Tree
Inherited from:
MiniPhase
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 transformIdent(tree: Ident)(using Context): Tree
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
def transformSelect(tree: Select)(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
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
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
def transformValDef(tree: ValDef)(using Context): Tree
Inherited from:
MiniPhase
Inherited from:
MiniPhase

Inherited fields

Inherited from:
MiniPhase