case class OriginalTreeAttachment(original: Global.Tree) extends Product with Serializable
Marks a tree that has been adapted by typer and sets the original tree that was in place before.
Keeping track of the original trees were is an important feature for some compiler plugins (like Scalameta) and the incremental compiler (Zinc). In both cases, adapting trees loses information in some sense and do not allow external tools to capture some information stored in user-defined trees that are optimized away by early phases (mostly, typer).
See how the absence of this attachment blocks Zinc: https://github.com/sbt/zinc/issues/227. Related: https://github.com/scala/scala-dev/issues/340.
This attachment is, at the moment, only used to keep track of constant-folded constants. It has a generic wording in the hope that in the future can be reused in the same context to keep track of other adapted trees.
- Source
- StdAttachments.scala
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Instance Constructors
- new OriginalTreeAttachment(original: Global.Tree)
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
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- final def ##(): Int
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- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toany2stringadd[Analyzer.OriginalTreeAttachment] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (Analyzer.OriginalTreeAttachment, B)
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toArrowAssoc[Analyzer.OriginalTreeAttachment] performed by method ArrowAssoc in scala.Predef.
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def ensuring(cond: (Analyzer.OriginalTreeAttachment) => Boolean, msg: => Any): Analyzer.OriginalTreeAttachment
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toEnsuring[Analyzer.OriginalTreeAttachment] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (Analyzer.OriginalTreeAttachment) => Boolean): Analyzer.OriginalTreeAttachment
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toEnsuring[Analyzer.OriginalTreeAttachment] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): Analyzer.OriginalTreeAttachment
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toEnsuring[Analyzer.OriginalTreeAttachment] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): Analyzer.OriginalTreeAttachment
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toEnsuring[Analyzer.OriginalTreeAttachment] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
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- def finalize(): Unit
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- protected[java.lang]
- Definition Classes
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- @throws(classOf[java.lang.Throwable])
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toStringFormat[Analyzer.OriginalTreeAttachment] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
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- Definition Classes
- AnyRef
- Annotations
- @native()
- val original: Global.Tree
- def productElementNames: Iterator[String]
- Definition Classes
- Product
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
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- final def wait(): Unit
- Definition Classes
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- Definition Classes
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- @throws(classOf[java.lang.InterruptedException]) @native()
Deprecated Value Members
- def →[B](y: B): (Analyzer.OriginalTreeAttachment, B)
- Implicit
- This member is added by an implicit conversion from Analyzer.OriginalTreeAttachment toArrowAssoc[Analyzer.OriginalTreeAttachment] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
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