The phase defined by this transform
The phase defined by this transform
A standard phase template
A standard phase template
Names of phases that must run before this phase.
Names of phases that must run before this phase.
Name of the phase that this phase must follow immediately.
Name of the phase that this phase must follow immediately.
Test two objects for inequality.
Test two objects for inequality.
true
if !(this == that), false otherwise.
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
.
a hash value consistent with ==
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)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
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.
the receiver object.
ClassCastException
if the receiver object is not an instance of the erasure of type T0
.
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
a copy of the receiver object.
not specified by SLS as a member of AnyRef
Is this component enabled? Default is true.
Is this component enabled? Default is true.
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:
x
and y
of type AnyRef
, multiple invocations of
x.eq(y)
consistently returns true
or consistently returns false
.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
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types.
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.
not specified by SLS as a member of AnyRef
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
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
the hash code value for this object.
True if this phase runs before all other phases.
True if this phase runs before all other phases. Usually, parser
.
True if this phase is not provided by a plug-in.
True if this phase is not provided by a plug-in.
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.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Equivalent to !(this eq that)
.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
Create a new phase which applies transformer
Create a new phase which applies transformer
The transformer factory
The transformer factory
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.
not specified by SLS as a member of AnyRef
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.
not specified by SLS as a member of AnyRef
The phase corresponding to this subcomponent in the current compiler run
The phase corresponding to this subcomponent in the current compiler run
the following two members override abstract members in Transform
the following two members override abstract members in Transform
The following flags may be set by this phase:
The following flags may be set by this phase:
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
Names of phases required by this component.
Names of phases required by this component. Default is Nil
.
Names of phases that must run after this phase.
Names of phases that must run after this phase. Default is Nil
.
True if this phase runs after all other phases.
True if this phase runs after all other phases. Usually, terminal
.
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.
a String representation of the object.
This phase performs the following functions, each of which could be split out in a mini-phase:
(1) Adds super accessors for all super calls that either appear in a trait or have as a target a member of some outer class.
(2) Converts references to parameter fields that have the same name as a corresponding public parameter field in a superclass to a reference to the superclass field (corresponding = super class field is initialized with subclass field). This info is pre-computed by the
alias
field in Typer.dotc
follows a different route; it computes everything in SuperAccessors and changes the subclass field to a forwarder instead of manipulating references. This is more modular.(3) Adds protected accessors if the access to the protected member happens in a class which is not a subclass of the member's owner.
(4) Mangles the names of class-members which are private up to an enclosing non-package class, in order to avoid overriding conflicts. This is a dubious, and it would be better to deprecate class-qualified privates.
(5) This phase also sets SPECIALIZED flag on type parameters with
@specialized
annotation. We put this logic here because the flag must be set before pickling.It also checks that:
(1) Symbols accessed from super are not abstract, or are overridden by an abstract override.
(2) If a symbol accessed accessed from super is defined in a real class (not a trait), there are no abstract members which override this member in Java's rules (see SI-4989; such an access would lead to illegal bytecode)
(3) Super calls do not go to some synthetic members of Any (see isDisallowed)
(4) Super calls do not go to synthetic field accessors
(5) A class and its companion object do not both define a class or module with the same name.
TODO: Rename phase to "Accessors" because it handles more than just super accessors