trait StdAttachments extends AnyRef
- Alphabetic
- By Inheritance
- StdAttachments
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
- Hide All
- Show All
- Public
- All
Type Members
- type MacroContext = Analyzer.UnaffiliatedMacroContext { val universe: StdAttachments.this.global.type }
-
case class
MacroExpanderAttachment
(original: Global.Tree, desugared: Global.Tree) extends Product with Serializable
Scratchpad for the macro expander, which is used to store all intermediate data except the details about the runtime.
-
case class
MacroExpansionAttachment
(expandee: Global.Tree, expanded: Any) extends Product with Serializable
Is added by the macro engine to originals and results of macro expansions.
Is added by the macro engine to originals and results of macro expansions. Stores the original expandee as it entered the
macroExpand
function. - case class MacroRuntimeAttachment (delayed: Boolean, typerContext: Analyzer.Context, macroContext: Option[Analyzer.MacroContext]) extends Product with Serializable
-
case class
SuperArgsAttachment
(argss: List[List[Global.Tree]]) extends Product with Serializable
After being synthesized by the parser, primary constructors aren't fully baked yet.
After being synthesized by the parser, primary constructors aren't fully baked yet. A call to super in such constructors is just a fill-me-in-later dummy resolved later by
parentTypes
. This attachment coordinatesparentTypes
andtypedTemplate
and allows them to complete the synthesis. -
type
UnaffiliatedMacroContext = Context
Carries information necessary to expand the host tree.
Carries information necessary to expand the host tree. At times we need to store this info, because macro expansion can be delayed until its targs are inferred. After a macro application has been successfully expanded, this attachment is destroyed.
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 andnull
.Equivalent to
x.hashCode
except for boxed numeric types andnull
. 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. Fornull
returns a hashcode wherenull.hashCode
throws aNullPointerException
.- returns
a hash value consistent with ==
- Definition Classes
- AnyRef → Any
-
def
+(other: String): String
- Implicit
- This member is added by an implicit conversion from StdAttachments to any2stringadd[StdAttachments] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
-
def
->[B](y: B): (StdAttachments, B)
- Implicit
- This member is added by an implicit conversion from StdAttachments to ArrowAssoc[StdAttachments] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
-
final
def
==(arg0: Any): Boolean
The expression
x == that
is equivalent toif (x eq null) that eq null else x.equals(that)
.The expression
x == that
is equivalent toif (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
-
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 aClassCastException
at runtime, while the expressionList(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 typeT0
.
-
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
ensuring(cond: (StdAttachments) ⇒ Boolean, msg: ⇒ Any): StdAttachments
- Implicit
- This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: (StdAttachments) ⇒ Boolean): StdAttachments
- Implicit
- This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean, msg: ⇒ Any): StdAttachments
- Implicit
- This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
def
ensuring(cond: Boolean): StdAttachments
- Implicit
- This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
-
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 ofAnyRef
, and has three additional properties:- It is consistent: for any non-null instances
x
andy
of typeAnyRef
, multiple invocations ofx.eq(y)
consistently returnstrue
or consistently returnsfalse
. - For any non-null instance
x
of typeAnyRef
,x.eq(null)
andnull.eq(x)
returnsfalse
. null.eq(null)
returnstrue
.
When overriding the
equals
orhashCode
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
- It is consistent: for any non-null instances
-
def
equals(arg0: Any): Boolean
The equality method for reference types.
-
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 betweenfinalize
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
-
def
formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from StdAttachments to StringFormat[StdAttachments] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
-
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
-
def
hasMacroExpansionAttachment(any: Any): Boolean
Determines whether the target is either an original or a result of a macro expansion.
Determines whether the target is either an original or a result of a macro expansion. The parameter is of type
Any
, because macros can expand both into trees and into annotations. -
def
hasSuperArgs(tree: Global.Tree): Boolean
Determines whether the given tree has an associated SuperArgsAttachment.
-
def
hashCode(): Int
The hashCode method for reference types.
- def isDynamicRewrite(tree: Global.Tree): Boolean
-
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 returnfalse
, while the expressionList(1).isInstanceOf[List[String]]
will returntrue
. 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 typeT0
;false
otherwise.
- Definition Classes
- Any
-
def
isMacroExpansionSuppressed(tree: Global.Tree): Boolean
Determines whether a tree should not be expanded, because someone has put SuppressMacroExpansionAttachment on it or one of its children.
-
def
isMacroImplRef(tree: Global.Tree): Boolean
Determines whether a tree should or should not be adapted, because someone has put MacroImplRefAttachment on it.
-
def
linkExpandeeAndDesugared(expandee: Global.Tree, desugared: Global.Tree): Unit
After macro expansion is completed, links the expandee and the expansion result by annotating them both with a
MacroExpansionAttachment
. -
def
linkExpandeeAndExpanded(expandee: Global.Tree, expanded: Any): Unit
After macro expansion is completed, links the expandee and the expansion result by annotating them both with a
MacroExpansionAttachment
.After macro expansion is completed, links the expandee and the expansion result by annotating them both with a
MacroExpansionAttachment
. Theexpanded
parameter is of typeAny
, because macros can expand both into trees and into annotations. -
def
macroExpandee(tree: Global.Tree): Global.Tree
Returns the original tree of the macro expansion if the argument is a macro expansion or EmptyTree otherwise.
-
def
macroExpanderAttachment(tree: Global.Tree): Analyzer.MacroExpanderAttachment
Loads underlying MacroExpanderAttachment from a macro expandee or returns a default value for that attachment.
- def markDynamicRewrite(tree: Global.Tree): Global.Tree
-
def
markMacroImplRef(tree: Global.Tree): Global.Tree
Marks the tree as a macro impl reference, which is a naked reference to a method.
Marks the tree as a macro impl reference, which is a naked reference to a method.
This is necessary for typechecking macro impl references (see
DefaultMacroCompiler.defaultResolveMacroImpl
), because otherwise typing a naked reference will result in the "follow this method with_
if you want to treat it as a partially applied function" errors.This mark suppresses adapt except for when the annottee is a macro application.
-
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
-
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
superArgs(tree: Global.Tree): Option[List[List[Global.Tree]]]
Convenience method for
SuperArgsAttachment
.Convenience method for
SuperArgsAttachment
. Compared withMacroRuntimeAttachment
this attachment has different a usage pattern, so it really benefits from a dedicated extractor. -
def
suppressMacroExpansion(tree: Global.Tree): Global.Tree
Suppresses macro expansion of the tree by putting SuppressMacroExpansionAttachment on it.
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
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 unmarkDynamicRewrite(tree: Global.Tree): Global.Tree
-
def
unmarkMacroImplRef(tree: Global.Tree): Global.Tree
Unmarks the tree as a macro impl reference (see
markMacroImplRef
for more information).Unmarks the tree as a macro impl reference (see
markMacroImplRef
for more information).This is necessary when a tree that was previously deemed to be a macro impl reference, typechecks to be a macro application. Then we need to unmark it, expand it and try to treat its expansion as a macro impl reference.
-
def
unsuppressMacroExpansion(tree: Global.Tree): Global.Tree
Unsuppresses macro expansion of the tree by removing SuppressMacroExpansionAttachment from it and its children.
-
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( ... )
-
def
→[B](y: B): (StdAttachments, B)
- Implicit
- This member is added by an implicit conversion from StdAttachments to ArrowAssoc[StdAttachments] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
-
object
DynamicRewriteAttachment
extends Product with Serializable
Since mkInvoke, the applyDynamic/selectDynamic/etc desugarer, is disconnected from typedNamedApply, the applyDynamicNamed argument rewriter, the latter doesn’t know whether it needs to apply the rewriting because the application has just been desugared or it needs to hold on because it’s already performed a desugaring on this tree.
Since mkInvoke, the applyDynamic/selectDynamic/etc desugarer, is disconnected from typedNamedApply, the applyDynamicNamed argument rewriter, the latter doesn’t know whether it needs to apply the rewriting because the application has just been desugared or it needs to hold on because it’s already performed a desugaring on this tree. This has led to SI-8006.
This attachment solves the problem by providing a means of communication between the two Dynamic desugarers, which solves the aforementioned issue.
-
object
MacroImplRefAttachment
extends Product with Serializable
- See also
markMacroImplRef
-
object
SuppressMacroExpansionAttachment
extends Product with Serializable
When present, suppresses macro expansion for the host.
When present, suppresses macro expansion for the host. This is occasionally necessary, e.g. to prohibit eta-expansion of macros.
Does not affect expandability of child nodes, there's context.withMacrosDisabled for that (but think thrice before using that API - see the discussion at https://github.com/scala/scala/pull/1639).
The Scala compiler API.
The following resources are useful for Scala plugin/compiler development: