specializeTypes

object specializeTypes extends SpecializeTypes

Source: Global.scala

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SpecializeTypes, TypingTransformers, InfoTransform, Transform, SubComponent, AnyRef, Any

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Type Members

type TypeEnv = Map[Global.Symbol, Global.Type]

Definition Classes
SpecializeTypes
abstract class StdPhase extends GlobalPhase
A standard phase template
A standard phase template

Definition Classes
SubComponent
class Phase extends InfoTransform.Phase

Definition Classes
InfoTransform
case class Abstract (t: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a specialized abstract method, either specialized or original.
Symbol is a specialized abstract method, either specialized or original. The original t is abstract.

Definition Classes
SpecializeTypes
class Duplicator extends Duplicators
This duplicator additionally performs casts of expressions if that is allowed by the casts map.
This duplicator additionally performs casts of expressions if that is allowed by the casts map.

Definition Classes
SpecializeTypes
case class Forward (t: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a method that should be forwarded to 't'
Symbol is a method that should be forwarded to 't'

Definition Classes
SpecializeTypes
case class Implementation (target: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a specialized method whose body should be the target's method body.
Symbol is a specialized method whose body should be the target's method body.

Definition Classes
SpecializeTypes
class ImplementationAdapter extends Global.TreeSymSubstituter
A tree symbol substituter that substitutes on type skolems.
A tree symbol substituter that substitutes on type skolems. If a type parameter is a skolem, it looks for the original symbol in the 'from' and maps it to the corresponding new symbol. The new symbol should probably be a type skolem as well (not enforced).
All private members are made protected in order to be accessible from specialized classes.

Definition Classes
SpecializeTypes
case class NormalizedMember (target: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a normalized member obtained by specializing 'target'.
Symbol is a normalized member obtained by specializing 'target'.

Definition Classes
SpecializeTypes
case class Overload (sym: Global.Symbol, env: TypeEnv) extends Product with Serializable

Definition Classes
SpecializeTypes
case class SpecialOverload (original: Global.Symbol, env: TypeEnv) extends SpecializedInfo with Product with Serializable
Symbol is a special overloaded method of 'original', in the environment env.
Symbol is a special overloaded method of 'original', in the environment env.

Definition Classes
SpecializeTypes
case class SpecialOverride (target: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a specialized override paired with target.
Symbol is a specialized override paired with target.

Definition Classes
SpecializeTypes
case class SpecialSuperAccessor (t: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a special overload of the super accessor.
Symbol is a special overload of the super accessor.

Definition Classes
SpecializeTypes
class SpecializationDuplicator extends Duplicator
Introduced to fix SI-7343: Phase ordering problem between Duplicators and Specialization.
Introduced to fix SI-7343: Phase ordering problem between Duplicators and Specialization. brief explanation: specialization rewires class parents during info transformation, and the new info then guides the tree changes. But if a symbol is created during duplication, which runs after specialization, its info is not visited and thus the corresponding tree is not specialized. One manifestation is the following: object Test { class Parent[@specialized(Int) T]
def spec_method[@specialized(Int) T](t: T, expectedXSuper: String) = { class X extends Parent[T]() // even in the specialized variant, the local X class // doesn't extend Parent$mcI$sp, since its symbol has // been created after specialization and was not seen // by specialization's info transformer. ... } } We fix this by forcing duplication to take place before specialization.
Note: The constructors phase (which also uses duplication) comes after erasure and uses the post-erasure typer => we must protect it from the beforeSpecialization phase shifting.

Definition Classes
SpecializeTypes
class SpecializationPhase extends Phase

Definition Classes
SpecializeTypes
class SpecializationTransformer extends Global.Transformer

Definition Classes
SpecializeTypes
case class SpecializedAccessor (target: Global.Symbol) extends SpecializedInfo with Product with Serializable
Symbol is a specialized accessor for the target field.
Symbol is a specialized accessor for the target field.

Definition Classes
SpecializeTypes
abstract class SpecializedInfo extends AnyRef

Definition Classes
SpecializeTypes
case class SpecializedInnerClass (target: Global.Symbol, env: TypeEnv) extends SpecializedInfo with Product with Serializable
A specialized inner class that specializes original inner class target on a type parameter of the enclosing class, in the typeenv env.
A specialized inner class that specializes original inner class target on a type parameter of the enclosing class, in the typeenv env.

Definition Classes
SpecializeTypes
abstract class TypingTransformer extends Global.Transformer

Definition Classes
TypingTransformers

Value Members

final def !=(arg0: Any): Boolean
Test two objects for inequality.
Test two objects for inequality.
returns
true if !(this == that), false otherwise.

Definition Classes
AnyRef → Any
final def ##(): Int
Equivalent to x.hashCode except for boxed numeric types and null.
Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.
returns
a hash value consistent with ==

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
returns
true if the receiver object is equivalent to the argument; false otherwise.

Definition Classes
AnyRef → Any
def addConcreteSpecMethod(m: Global.Symbol): Unit
Add method m to the set of symbols for which we need an implementation tree in the tree transformer.
Add method m to the set of symbols for which we need an implementation tree in the tree transformer.

Definition Classes
SpecializeTypes
Note
This field is part of the specializeTypes subcomponent, so any symbols that here are not garbage collected at the end of a compiler run!
final def afterOwnPhase[T](op: ⇒ T): T

Definition Classes
SubComponent
Annotations
@inline()
final def asInstanceOf[T0]: T0
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.
returns
the receiver object.

Definition Classes
Any
Exceptions thrown
ClassCastException if the receiver object is not an instance of the erasure of type T0.
final def beforeOwnPhase[T](op: ⇒ T): T

Definition Classes
SubComponent
Annotations
@inline()
def changesBaseClasses: Boolean
This phase changes base classes.
This phase changes base classes.

Definition Classes
SpecializeTypes → InfoTransform
def clone(): AnyRef
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the clone method is platform dependent.
returns
a copy of the receiver object.

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
Note
not specified by SLS as a member of AnyRef
def concreteTypes(sym: Global.Symbol): List[Global.Type]
Return the types sym should be specialized at.
Return the types sym should be specialized at. This may be some of the primitive types or AnyRef. AnyRef means that a new type parameter T will be generated later, known to be a subtype of AnyRef (T <: AnyRef). These are in a meaningful order for stability purposes.

Definition Classes
SpecializeTypes
def emptyEnv: TypeEnv

Definition Classes
SpecializeTypes
def enabled: Boolean
Is this component enabled? Default is true.
Is this component enabled? Default is true.

Definition Classes
SubComponent
final def eq(arg0: AnyRef): Boolean
Tests whether the argument (that) is a reference to the receiver object (this).
Tests whether the argument (that) is a reference to the receiver object (this).
The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:
- It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
- For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
- null.eq(null) returns true.
When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
returns
true if the argument is a reference to the receiver object; false otherwise.

Definition Classes
AnyRef
def equals(arg0: Any): Boolean
The equality method for reference types.
The equality method for reference types. Default implementation delegates to eq.
See also equals in scala.Any.
returns
true if the receiver object is equivalent to the argument; false otherwise.

Definition Classes
AnyRef → Any
def finalize(): Unit
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
Note
not specified by SLS as a member of AnyRef
final def getClass(): Class[_]
Returns the runtime class representation of the object.
Returns the runtime class representation of the object.
returns
a class object corresponding to the runtime type of the receiver.

Definition Classes
AnyRef → Any
val global: Global.this.type
The global environment; overridden by instantiation in Global.
The global environment; overridden by instantiation in Global.

Definition Classes
specializeTypes → TypingTransformers → SubComponent
def hasSpecializedParams(clazz: Global.Symbol): Boolean
Has clazz any type parameters that need be specialized?
Has clazz any type parameters that need be specialized?

Definition Classes
SpecializeTypes
def hashCode(): Int
SubComponent are added to a HashSet and two phases are the same if they have the same name
SubComponent are added to a HashSet and two phases are the same if they have the same name
returns
the hash code value for this object.

Definition Classes
SubComponent → AnyRef → Any
def illegalSpecializedInheritance(clazz: Global.Symbol): Boolean

Definition Classes
SpecializeTypes
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 isInstanceOf[T0]: Boolean
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.

Definition Classes
Any
def isNormalizedMember(m: Global.Symbol): Boolean

Definition Classes
SpecializeTypes
def isSpecializedIn(sym: Global.Symbol, site: Global.Type): Boolean
Refines possiblySpecialized taking into account the instantiation of the specialized type variables at site
Refines possiblySpecialized taking into account the instantiation of the specialized type variables at site

Definition Classes
SpecializeTypes
def keepsTypeParams: Boolean

Definition Classes
SpecializeTypes → InfoTransform
final def ne(arg0: AnyRef): Boolean
Equivalent to !(this eq that).
Equivalent to !(this eq that).
returns
true if the argument is not a reference to the receiver object; false otherwise.

Definition Classes
AnyRef
def newPhase(prev: nsc.Phase): StdPhase
Just to mark uncheckable
Just to mark uncheckable

Definition Classes
SpecializeTypes → InfoTransform → Transform → SubComponent
def newTransformer(unit: Global.CompilationUnit): Global.Transformer
The transformer factory
The transformer factory

Attributes
protected
Definition Classes
SpecializeTypes → Transform
def nonConflicting(env: TypeEnv): Boolean
Is any type variable in env conflicting with any if its type bounds, when type bindings in env are taken into account?
Is any type variable in env conflicting with any if its type bounds, when type bindings in env are taken into account?
A conflicting type environment could still be satisfiable.

Definition Classes
SpecializeTypes
final def notify(): Unit
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.

Definition Classes
AnyRef
Note
not specified by SLS as a member of AnyRef
final def notifyAll(): Unit
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.

Definition Classes
AnyRef
Note
not specified by SLS as a member of AnyRef
def originalClass(clazz: Global.Symbol): Global.Symbol
Return the generic class corresponding to this specialized class.
Return the generic class corresponding to this specialized class.

Definition Classes
SpecializeTypes
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 name of the phase:
the name of the phase:

Definition Classes
SpecializeTypes → SubComponent
def phaseNewFlags: Long
The following flags may be set by this phase:
The following flags may be set by this phase:

Definition Classes
SpecializeTypes → 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
def possiblySpecialized(sym: Global.Symbol): Boolean
Is member potentially affected by specialization? This is a gross overapproximation, but it should be okay for use outside of specialization.
Is member potentially affected by specialization? This is a gross overapproximation, but it should be okay for use outside of specialization.

Definition Classes
SpecializeTypes
def produceTypeParameters(syms: List[Global.Symbol], nowner: Global.Symbol, env: TypeEnv): collection.immutable.List[Global.Symbol]
Produces the symbols from type parameters syms of the original owner, in the given type environment env.
Produces the symbols from type parameters syms of the original owner, in the given type environment env. The new owner is nowner.
Non-specialized type parameters are cloned into new ones. Type parameters specialized on AnyRef have preexisting symbols.
For instance, a @specialized(AnyRef) T, will become T$sp <: AnyRef.

Definition Classes
SpecializeTypes
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 runsAfter: collection.immutable.List[String]
Names of phases that must run before this phase.
Names of phases that must run before this phase.

Definition Classes
specializeTypes → 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 runsRightAfter: Some[String]
Name of the phase that this phase must follow immediately.
Name of the phase that this phase must follow immediately.

Definition Classes
specializeTypes → SubComponent
def satisfiabilityConstraints(env: TypeEnv): Option[TypeEnv]

Definition Classes
SpecializeTypes
def satisfiable(env: TypeEnv, warnings: Boolean): Boolean

Definition Classes
SpecializeTypes
def satisfiable(env: TypeEnv): Boolean
The type environment is sound w.r.t.
The type environment is sound w.r.t. to all type bounds or only soft conflicts appear. An environment is sound if all bindings are within the bounds of the given type variable. A soft conflict is a binding that does not fall within the bounds, but whose bounds contain type variables that are @specialized, (that could become satisfiable).

Definition Classes
SpecializeTypes
lazy val specializableTypes: collection.immutable.List[Global.Type]

Definition Classes
SpecializeTypes
def specializeCalls(unit: Global.CompilationUnit): TypingTransformer { ... /* 7 definitions in type refinement */ }

Definition Classes
SpecializeTypes
def specializeClass(clazz: Global.Symbol, outerEnv: TypeEnv): List[Global.Symbol]
Specialize 'clazz', in the environment outerEnv.
Specialize 'clazz', in the environment outerEnv. The outer environment contains bindings for specialized types of enclosing classes.
A class C is specialized w.r.t to its own specialized type params stps, by specializing its members, and creating a new class for each combination of stps.

Definition Classes
SpecializeTypes
val specializedClass: HashMap[(Global.Symbol, TypeEnv), Global.Symbol]
For a given class and concrete type arguments, give its specialized class
For a given class and concrete type arguments, give its specialized class

Definition Classes
SpecializeTypes
def specializedFunctionName(sym: Global.Symbol, args: List[Global.Type]): reflect.internal.Symbols.Symbol.NameType

Definition Classes
SpecializeTypes
def specializedParams(sym: Global.Symbol): List[Global.Symbol]
Return specialized type parameters.
Return specialized type parameters.

Definition Classes
SpecializeTypes
val specializedType: Global.TypeMap

Definition Classes
SpecializeTypes
def specializedTypeVars(tpe: Global.Type): Set[Global.Symbol]
Return the set of @specialized type variables mentioned by the given type.
Return the set of @specialized type variables mentioned by the given type. It only counts type variables that appear:
- naked
- as arguments to type constructors in @specialized positions (arrays are considered as Array[@specialized T])
Definition Classes
SpecializeTypes
def specializedTypeVars(sym: Global.Symbol): Set[Global.Symbol]

Definition Classes
SpecializeTypes
def specializedTypeVars(tpes: List[Global.Type]): Set[Global.Symbol]

Definition Classes
SpecializeTypes
def specializesClass(sym: Global.Symbol): Global.Symbol
If the symbol is the companion of a value class, the value class.
If the symbol is the companion of a value class, the value class. Otherwise, AnyRef.

Definition Classes
SpecializeTypes
def survivingArgs(sym: Global.Symbol, args: List[Global.Type]): List[Global.Type]
Given an original class symbol and a list of types its type parameters are instantiated at returns a list of type parameters that should remain in the TypeRef when instantiating a specialized type.
Given an original class symbol and a list of types its type parameters are instantiated at returns a list of type parameters that should remain in the TypeRef when instantiating a specialized type.

Definition Classes
SpecializeTypes
def survivingParams(params: List[Global.Symbol], env: TypeEnv): collection.immutable.List[Global.Symbol]
Type parameters that survive when specializing in the specified environment.
Type parameters that survive when specializing in the specified environment.

Definition Classes
SpecializeTypes
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
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
def toString(): String
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
returns
a String representation of the object.

Definition Classes
AnyRef → Any
def transformInfo(sym: Global.Symbol, tpe: Global.Type): Global.Type
Type transformation.
Type transformation. It is applied to all symbols, compiled or loaded. If it is a 'no-specialization' run, it is applied only to loaded symbols.

Definition Classes
SpecializeTypes → InfoTransform
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
object SpecializedSuperConstructorCallArgument

Definition Classes
SpecializeTypes
object TypeEnv

Definition Classes
SpecializeTypes
object UnifyError extends Throwable with ControlThrowable with Product with Serializable

Definition Classes
SpecializeTypes

Packages

specializeTypes

object specializeTypes extends SpecializeTypes

Type Members

Value Members

Inherited from SpecializeTypes

Inherited from TypingTransformers

Inherited from InfoTransform

Inherited from Transform

Inherited from SubComponent

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

specializeTypes 

object specializeTypes extends SpecializeTypes

Type Members

Value Members

Inherited from SpecializeTypes

Inherited from TypingTransformers

Inherited from InfoTransform

Inherited from Transform

Inherited from SubComponent

Inherited from AnyRef

Inherited from Any

Ungrouped

specializeTypes