Trait

scala.tools.nsc.typechecker

StdAttachments

Related Doc: package typechecker

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trait StdAttachments extends AnyRef

Self Type
Analyzer
Source
StdAttachments.scala
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  1. StdAttachments
  2. AnyRef
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Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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  1. Public
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Type Members

  1. type MacroContext = Analyzer.UnaffiliatedMacroContext { val universe: StdAttachments.this.global.type }

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  2. case class MacroExpanderAttachment(original: Global.Tree, desugared: Global.Tree) extends Product with Serializable

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    Scratchpad for the macro expander, which is used to store all intermediate data except the details about the runtime.

  3. case class MacroExpansionAttachment(expandee: Global.Tree, expanded: Any) extends Product with Serializable

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    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.

  4. case class MacroRuntimeAttachment(delayed: Boolean, typerContext: Analyzer.Context, macroContext: Option[Analyzer.MacroContext]) extends Product with Serializable

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  5. case class SuperArgsAttachment(argss: List[List[Global.Tree]]) extends Product with Serializable

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    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 coordinates parentTypes and typedTemplate and allows them to complete the synthesis.

  6. type UnaffiliatedMacroContext = Context

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    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

  1. final def !=(arg0: Any): Boolean

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    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    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
  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to any2stringadd[StdAttachments] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (StdAttachments, B)

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    Implicit information
    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()
  5. final def ==(arg0: Any): Boolean

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    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
  6. object DynamicRewriteAttachment extends Product with Serializable

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    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.

  7. object MacroImplRefAttachment extends Product with Serializable

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    See also

    markMacroImplRef

  8. object SuppressMacroExpansionAttachment extends Product with Serializable

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    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).

  9. final def asInstanceOf[T0]: T0

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    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.

  10. def clone(): AnyRef

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    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

  11. def ensuring(cond: (StdAttachments) ⇒ Boolean, msg: ⇒ Any): StdAttachments

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: (StdAttachments) ⇒ Boolean): StdAttachments

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: Boolean, msg: ⇒ Any): StdAttachments

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: Boolean): StdAttachments

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to Ensuring[StdAttachments] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. final def eq(arg0: AnyRef): Boolean

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    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
  16. def equals(arg0: Any): Boolean

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    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
  17. def finalize(): Unit

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    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

  18. def formatted(fmtstr: String): String

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    Implicit information
    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()
  19. final def getClass(): Class[_]

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    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.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    Definition Classes
    AnyRef → Any
    Note

    not specified by SLS as a member of AnyRef

  20. def hasMacroExpansionAttachment(any: Any): Boolean

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    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.

  21. def hasSuperArgs(tree: Global.Tree): Boolean

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    Determines whether the given tree has an associated SuperArgsAttachment.

  22. def hashCode(): Int

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    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

    the hash code value for this object.

    Definition Classes
    AnyRef → Any
  23. def isDynamicRewrite(tree: Global.Tree): Boolean

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  24. final def isInstanceOf[T0]: Boolean

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    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
  25. def isMacroExpansionSuppressed(tree: Global.Tree): Boolean

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    Determines whether a tree should not be expanded, because someone has put SuppressMacroExpansionAttachment on it or one of its children.

  26. def isMacroImplRef(tree: Global.Tree): Boolean

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    Determines whether a tree should or should not be adapted, because someone has put MacroImplRefAttachment on it.

  27. def linkExpandeeAndDesugared(expandee: Global.Tree, desugared: Global.Tree): Unit

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    After macro expansion is completed, links the expandee and the expansion result by annotating them both with a MacroExpansionAttachment.

  28. def linkExpandeeAndExpanded(expandee: Global.Tree, expanded: Any): Unit

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    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. The expanded parameter is of type Any, because macros can expand both into trees and into annotations.

  29. def macroExpandee(tree: Global.Tree): Global.Tree

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    Returns the original tree of the macro expansion if the argument is a macro expansion or EmptyTree otherwise.

  30. def macroExpanderAttachment(tree: Global.Tree): Analyzer.MacroExpanderAttachment

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    Loads underlying MacroExpanderAttachment from a macro expandee or returns a default value for that attachment.

  31. def markDynamicRewrite(tree: Global.Tree): Global.Tree

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  32. def markMacroImplRef(tree: Global.Tree): Global.Tree

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    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.

  33. final def ne(arg0: AnyRef): Boolean

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    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
  34. final def notify(): Unit

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    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

  35. final def notifyAll(): Unit

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    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

  36. def superArgs(tree: Global.Tree): Option[List[List[Global.Tree]]]

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    Convenience method for SuperArgsAttachment.

    Convenience method for SuperArgsAttachment. Compared with MacroRuntimeAttachment this attachment has different a usage pattern, so it really benefits from a dedicated extractor.

  37. def suppressMacroExpansion(tree: Global.Tree): Global.Tree

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    Suppresses macro expansion of the tree by putting SuppressMacroExpansionAttachment on it.

  38. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  39. def toString(): String

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    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
  40. def unmarkDynamicRewrite(tree: Global.Tree): Global.Tree

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  41. def unmarkMacroImplRef(tree: Global.Tree): Global.Tree

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    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.

  42. def unsuppressMacroExpansion(tree: Global.Tree): Global.Tree

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    Unsuppresses macro expansion of the tree by removing SuppressMacroExpansionAttachment from it and its children.

  43. final def wait(): Unit

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

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  46. def [B](y: B): (StdAttachments, B)

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    Implicit information
    This member is added by an implicit conversion from StdAttachments to ArrowAssoc[StdAttachments] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from StdAttachments to any2stringadd[StdAttachments]

Inherited by implicit conversion StringFormat from StdAttachments to StringFormat[StdAttachments]

Inherited by implicit conversion Ensuring from StdAttachments to Ensuring[StdAttachments]

Inherited by implicit conversion ArrowAssoc from StdAttachments to ArrowAssoc[StdAttachments]

Ungrouped