abstract class RefChecks extends SubComponent with Transform
Post-attribution checking and transformation.
This phase checks the following postconditions:
- All overrides conform to rules.
- All type arguments conform to bounds.
- Every use of a type variable conforms to the variance annotation of that variable.
- No forward reference to a term symbol extends beyond a value definition.
It performs the following transformations:
- Local modules are replaced by variables and classes.
- Calls to case factory methods are replaced by new's.
- Eliminate branches in a conditional if the condition is a constant.
- Source
- RefChecks.scala
- Alphabetic
- By Inheritance
- RefChecks
- Transform
- SubComponent
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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- Public
- Protected
Instance Constructors
- new RefChecks()
Type Members
- abstract class StdPhase extends GlobalPhase
A standard phase template
A standard phase template
- Definition Classes
- SubComponent
- class Phase extends StdPhase
The phase defined by this transform
The phase defined by this transform
- Definition Classes
- Transform
- class RefCheckTransformer extends Global.AstTransformer
Abstract Value Members
- abstract val global: Global
The global environment; overridden by instantiation in Global.
The global environment; overridden by instantiation in Global.
- Definition Classes
- RefChecks → SubComponent
- abstract val runsAfter: List[String]
Names of phases that must run before this phase.
Names of phases that must run before this phase.
- Definition Classes
- SubComponent
- abstract val runsRightAfter: Option[String]
Name of the phase that this phase must follow immediately.
Name of the phase that this phase must follow immediately.
- Definition Classes
- SubComponent
Concrete Value Members
- def accessFlagsToString(sym: Global.Symbol): String
- final def afterOwnPhase[T](op: => T): T
- Definition Classes
- SubComponent
- Annotations
- @inline()
- final def beforeOwnPhase[T](op: => T): T
- Definition Classes
- SubComponent
- Annotations
- @inline()
- def enabled: Boolean
Is this component enabled? Default is true.
Is this component enabled? Default is true.
- Definition Classes
- SubComponent
- def equals(other: Any): Boolean
- Definition Classes
- SubComponent → AnyRef → Any
- def hashCode(): Int
SubComponents are added to a HashSet and two phases are the same if they have the same name.
SubComponents are added to a HashSet and two phases are the same if they have the same name.
- Definition Classes
- SubComponent → AnyRef → Any
- val initial: Boolean
True if this phase runs before all other phases.
True if this phase runs before all other phases. Usually,
parser.- Definition Classes
- SubComponent
- val internal: Boolean
True if this phase is not provided by a plug-in.
True if this phase is not provided by a plug-in.
- Definition Classes
- SubComponent
- final def isSeparatelyCompiledScalaSuperclass(sym: Global.Symbol): Boolean
- def newPhase(prev: nsc.Phase): StdPhase
Create a new phase which applies transformer
Create a new phase which applies transformer
- Definition Classes
- Transform → SubComponent
- def newTransformer(unit: Global.CompilationUnit): RefCheckTransformer
The transformer factory
- def overridesTypeInPrefix(tp1: Global.Type, tp2: Global.Type, prefix: Global.Type): Boolean
- def ownPhase: nsc.Phase
The phase corresponding to this subcomponent in the current compiler run.
The phase corresponding to this subcomponent in the current compiler run.
- Definition Classes
- SubComponent
- val phaseName: String
the following two members override abstract members in Transform
the following two members override abstract members in Transform
- Definition Classes
- RefChecks → SubComponent
- def phaseNewFlags: Long
New flags defined by the phase which are not valid before
New flags defined by the phase which are not valid before
- Definition Classes
- SubComponent
- def phaseNextFlags: Long
New flags defined by the phase which are not valid until immediately after it
New flags defined by the phase which are not valid until immediately after it
- Definition Classes
- SubComponent
- val requires: List[String]
Names of phases required by this component.
Names of phases required by this component. Default is
Nil.- Definition Classes
- SubComponent
- val runsBefore: List[String]
Names of phases that must run after this phase.
Names of phases that must run after this phase. Default is
Nil.- Definition Classes
- SubComponent
- val terminal: Boolean
True if this phase runs after all other phases.
True if this phase runs after all other phases. Usually,
terminal.- Definition Classes
- SubComponent
- val toJavaRepeatedParam: Global.SubstSymMap
- val toScalaRepeatedParam: Global.SubstSymMap
The Scala compiler and reflection APIs.