ProtoTypes
Type members
Classlikes
A prototype for expressions [] that are known to be functions:
A prototype for expressions [] that are known to be functions:
[] _
A prototype for expressions [] that are in some unspecified selection operation
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.
- See also
checkValue
A prototype for type constructors that are followed by a type application
A prototype for type constructors that are followed by a type application
A trait defining an isCompatible method.
A trait defining an isCompatible method.
A prototype for expressions that appear in function position
- Value Params
- applyKind
The kind of application (regular/using/tupled infix operand)
- args
The untyped arguments to which the function is applied
- constrainResultDeep
A flag to indicate that constrainResult on this prototype should typecheck and compare the arguments.
- resType
The expeected result type
- state
The state object to use for tracking the changes to this prototype
- typer
The typer to use for typing the arguments
A class marking ignored prototypes that can be revealed by deepenProto
A class marking ignored prototypes that can be revealed by deepenProto
- Companion
- object
A prototype for expressions [] that are type-parameterized:
A prototype for expressions [] that are type-parameterized:
[] [targs] resultType
A prototype for expressions [] that are part of a selection operation:
A prototype for expressions [] that are part of a selection operation:
[ ].name: proto
- Companion
- object
A prototype for selections in pattern constructors
A prototype for selections in pattern constructors
A prototype for implicitly inferred views:
A prototype for implicitly inferred views:
[]: argType => resultType
- Companion
- object
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
Value members
Concrete methods
Add all parameters of given type lambda tl to the constraint's domain.
If the constraint contains already some of these parameters in its domain,
make a copy of the type lambda and add the copy's type parameters instead.
Return either the original type lambda, or the copy, if one was made.
Also, if owningTree is non-empty or alwaysAddTypeVars is true, add a type variable
for each parameter.
Add all parameters of given type lambda tl to the constraint's domain.
If the constraint contains already some of these parameters in its domain,
make a copy of the type lambda and add the copy's type parameters instead.
Return either the original type lambda, or the copy, if one was made.
Also, if owningTree is non-empty or alwaysAddTypeVars is true, add a type variable
for each parameter.
- Returns
The added type lambda, and the list of created type variables.
Same as constrained(tl, EmptyTree), but returns just the created type lambda
Same as constrained(tl, EmptyTree), but returns just the created type lambda
Create a new TypeVar that represents a dependent method parameter singleton
Create a new TypeVar that represents a dependent method parameter singleton
The normalized form of a type
The normalized form of a type
- unwraps polymorphic types, tracking their parameters in the current constraint
- skips implicit parameters of methods and functions; if result type depends on implicit parameter, replace with wildcard.
- converts non-dependent method types to the corresponding function types unless the expected type is an ApplyingProto or IgnoredProto.
- 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.
The result type of mt, where all references to parameters of mt are
replaced by either wildcards or TypeParamRefs.
The result type of mt, where all references to parameters of mt are
replaced by either wildcards or TypeParamRefs.