scala3-compiler-bootstrapped/dotty.tools.dotc.typer/Checking/CheckNonCyclicMap

CheckNonCyclicMap

class CheckNonCyclicMap(sym: Symbol, reportErrors: Boolean)(using x$3: Context) extends TypeMap

A type map which checks that the only cycles in a type are F-bounds and that protects all F-bounded references by LazyRefs.

class TypeMap
trait Type => Type
class Object
trait Matchable
class Any

Value members

Concrete methods

def apply(tp: Type): Type
def checkInfo(tp: Type): Type

Check info tp for cycles. Throw CyclicReference for illegal cycles, break direct cycle with a LazyRef for legal, F-bounded cycles.

Check info tp for cycles. Throw CyclicReference for illegal cycles, break direct cycle with a LazyRef for legal, F-bounded cycles.

Inherited methods

def andThen(f: Type => Type): TypeMap
Inherited from
TypeMap
def andThen[A](g: Type => A): Type => A
Inherited from
Function1
inline protected
def atVariance[T](v: Int)(op: => T): T
Inherited from
VariantTraversal
def compose[A](g: A => Type): A => Type
Inherited from
Function1
protected
def derivedAlias(tp: AliasingBounds, alias: Type): Type
Inherited from
TypeMap
protected
def derivedAndType(tp: AndType, tp1: Type, tp2: Type): Type
Inherited from
TypeMap
protected
def derivedAnnotatedType(tp: AnnotatedType, underlying: Type, annot: Annotation): Type
Inherited from
TypeMap
protected
def derivedAppliedType(tp: AppliedType, tycon: Type, args: List[Type]): Type
Inherited from
TypeMap
protected
def derivedClassInfo(tp: ClassInfo, pre: Type): Type
Inherited from
TypeMap
protected
def derivedExprType(tp: ExprType, restpe: Type): Type
Inherited from
TypeMap
protected
def derivedJavaArrayType(tp: JavaArrayType, elemtp: Type): Type
Inherited from
TypeMap
protected
def derivedLambdaType(tp: LambdaType)(formals: List[PInfo], restpe: Type): Type
Inherited from
TypeMap
protected
def derivedMatchType(tp: MatchType, bound: Type, scrutinee: Type, cases: List[Type]): Type
Inherited from
TypeMap
protected
def derivedOrType(tp: OrType, tp1: Type, tp2: Type): Type
Inherited from
TypeMap
protected
def derivedRecType(tp: RecType, parent: Type): Type
Inherited from
TypeMap
protected
def derivedRefinedType(tp: RefinedType, parent: Type, info: Type): Type
Inherited from
TypeMap
protected
def derivedSelect(tp: NamedType, pre: Type): Type
Inherited from
TypeMap
protected
def derivedSkolemType(tp: SkolemType, info: Type): Type
Inherited from
TypeMap
protected
def derivedSuperType(tp: SuperType, thistp: Type, supertp: Type): Type
Inherited from
TypeMap
protected
def derivedTypeBounds(tp: TypeBounds, lo: Type, hi: Type): Type
Inherited from
TypeMap
protected
def derivedWildcardType(tp: WildcardType, bounds: Type): Type
Inherited from
TypeMap
protected
def isStaticPrefix(pre: Type)(using Context): Boolean

Can the prefix of this static reference be omitted if the reference itself can be omitted? Overridden in TypeOps#avoid.

Can the prefix of this static reference be omitted if the reference itself can be omitted? Overridden in TypeOps#avoid.

Inherited from
VariantTraversal
protected
def mapArgs(args: List[Type], tparams: List[ParamInfo]): List[Type]
Inherited from
TypeMap
protected
def mapClassInfo(tp: ClassInfo): Type

Can be overridden. By default, only the prefix is mapped.

Can be overridden. By default, only the prefix is mapped.

Inherited from
TypeMap
def mapOver(tree: Tree): Tree
Inherited from
TypeMap
def mapOver(annot: Annotation): Annotation
Inherited from
TypeMap
def mapOver(scope: Scope): Scope
Inherited from
TypeMap
def mapOver(syms: List[Symbol]): List[Symbol]
Inherited from
TypeMap
def mapOver(tp: Type): Type

Map this function over given type

Map this function over given type

Inherited from
TypeMap
protected
def mapOverLambda(tp: LambdaType): Type
Inherited from
TypeMap
protected
def stopAt: StopAt
Inherited from
VariantTraversal
protected
def stopBecauseStaticOrLocal(tp: NamedType)(using Context): Boolean
Inherited from
VariantTraversal
override
def toString(): String
Definition Classes
Function1 -> Any
Inherited from
Function1

Concrete fields

var lastChecked: Type

The last type top-level type checked when a CyclicReference occurs.

The last type top-level type checked when a CyclicReference occurs.

var where: String

A diagnostic output string that indicates the position of the last part of a type bounds checked by checkInfo. Possible choices: alias, lower bound, upper bound.

A diagnostic output string that indicates the position of the last part of a type bounds checked by checkInfo. Possible choices: alias, lower bound, upper bound.

Implicits

Inherited implicits

implicit protected
val mapCtx: Context
Inherited from
TypeMap