final object ProtoTypes

Constructors

Members

[+] @sharable final object AnyFunctionProto

A prototype for expressions [] that are known to be functions:

[] _

A prototype for expressions [] that are known to be functions:

[] _

[+] @sharable final object AnySelectionProto

A prototype for expressions [] that are in some unspecified selection operation

[].?: ?

Used to indicate that expression is in a context where the only vali...

A prototype for expressions [] that are in some unspecified selection operation

[].?: ?

Used to indicate that expression is in a context where the only valid operation is further selection. In this case, the expression need not be a value.

[+] @sharable final object AnyTypeConstructorProto

A prototype for type constructors that are followed by a type application

A prototype for type constructors that are followed by a type application

[+] trait ApplyingProto
[+] @sharable final object AssignProto
[+] class CachedViewProto
[+] trait Compatibility

A trait defining an isCompatible method.

A trait defining an isCompatible method.

[+] case class FunProto

A prototype for expressions that appear in function position

: resultType

A prototype for expressions that appear in function position

: resultType

[+] final object FunProto

A prototype for expressions that appear in function position

: resultType

A prototype for expressions that appear in function position

: resultType

[+] class FunProtoTyped

A prototype for expressions that appear in function position

: resultType, where args are known to be typed

A prototype for expressions that appear in function position

: resultType, where args are known to be typed

[+] case class IgnoredProto

A class marking ignored prototypes that can be revealed by deepenProto

A class marking ignored prototypes that can be revealed by deepenProto

[+] final object IgnoredProto

A class marking ignored prototypes that can be revealed by deepenProto

A class marking ignored prototypes that can be revealed by deepenProto

[+] trait MatchAlways

A trait for prototypes that match all types

A trait for prototypes that match all types

[+] final object NoViewsAllowed
[+] case class PolyProto

A prototype for expressions [] that are type-parameterized:

[] [targs] resultType

A prototype for expressions [] that are type-parameterized:

[] [targs] resultType

[+] final object PolyProto

A prototype for expressions [] that are type-parameterized:

[] [targs] resultType

A prototype for expressions [] that are type-parameterized:

[] [targs] resultType

[+] abstract case class SelectionProto

A prototype for expressions [] that are part of a selection operation:

 [ ].name: proto

A prototype for expressions [] that are part of a selection operation:

 [ ].name: proto
[+] final object SelectionProto
[+] class UnapplyFunProto

A prototype for selections in pattern constructors

A prototype for selections in pattern constructors

[+] abstract case class ViewProto

A prototype for implicitly inferred views:

[]: argType => resultType

A prototype for implicitly inferred views:

[]: argType => resultType

[+] final object ViewProto
[+] class WildApproxMap
[+] final object dummyTreeOfType

Dummy tree to be used as an argument of a FunProto or ViewProto type

Dummy tree to be used as an argument of a FunProto or ViewProto type

[+] def constrained ( pt: PolyType , owningTree: Tree ) ( implicit ctx: Context ) : ( PolyType, List [ TypeTree ] )

Add all parameters in given polytype pt to the constraint's domain. If the constraint contains already some of these parameters in its domain, make a co...

Add all parameters in given polytype pt to the constraint's domain. If the constraint contains already some of these parameters in its domain, make a copy of the polytype and add the copy's type parameters instead. Return either the original polytype, or the copy, if one was made. Also, if owningTree is non-empty, add a type variable for each parameter.

[+] def constrained ( pt: PolyType ) ( implicit ctx: Context ) : PolyType

Same as constrained(pt, EmptyTree), but returns just the created polytype

Same as constrained(pt, EmptyTree), but returns just the created polytype

[+] def normalize ( tp: Type , pt: Type ) ( implicit ctx: Context ) : Type

The normalized form of a type - unwraps polymorphic types, tracking their parameters in the current constraint - skips implicit parameters; if result ty...

The normalized form of a type - unwraps polymorphic types, tracking their parameters in the current constraint - skips implicit parameters; if result type depends on implicit parameter, replace with Wildcard. - converts non-dependent method types to the corresponding function types - dereferences parameterless method types - dereferences nullary method types provided the corresponding function type is not a subtype of the expected type. Note: We need to take account of the possibility of inserting a () argument list in normalization. Otherwise, a type with a def toString(): String member would not count as a valid solution for ?{toString: String}. This would then lead to an implicit insertion, with a nice explosion of inference search because of course every implicit result has some sort of toString method. The problem is solved by dereferencing nullary method types if the corresponding function type is not compatible with the prototype.

[+] def selectionProto ( name: Name , tp: Type , typer: Typer ) ( implicit ctx: Context ) : WildcardType$ | SelectionProto

Create a selection proto-type, but only one level deep; treat constructors specially

Create a selection proto-type, but only one level deep; treat constructors specially

[+] final def wildApprox ( tp: Type , theMap: WildApproxMap , seen: Set [ PolyParam ] ) ( implicit ctx: Context ) : Type

Approximate occurrences of parameter types and uninstantiated typevars by wildcard types.

Approximate occurrences of parameter types and uninstantiated typevars by wildcard types.