abstract class AsyncPhase extends SubComponent with Transform with TypingTransformers with AnfTransform with Lifter with LiveVariables
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- AsyncPhase
- LiveVariables
- Lifter
- ExprBuilder
- AsyncAnalysis
- AnfTransform
- TransformUtils
- AsyncTransformStates
- TypingTransformers
- Transform
- SubComponent
- AnyRef
- Any
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
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- Public
- Protected
Instance Constructors
- new AsyncPhase()
Type Members
- abstract class StdPhase extends GlobalPhase
A standard phase template
A standard phase template
- Definition Classes
- SubComponent
- class Phase extends StdPhase
The phase defined by this transform
The phase defined by this transform
- Definition Classes
- Transform
- abstract class ThicketTransformer extends TypingTransformer
A base class for typing transformers that need to perform "thicket expansion".
A base class for typing transformers that need to perform "thicket expansion". A thicket is the output of a transformation that is flattened into the enclosing block.
- Definition Classes
- TypingTransformers
- abstract class TypingTransformer extends Global.Transformer
- Definition Classes
- TypingTransformers
- final class AnfTransformer extends AnfTransform.TypingTransformer
Transform
treeinto "A-Normal Form", such that within subtrees that enclose anawait:Transform
treeinto "A-Normal Form", such that within subtrees that enclose anawait:if,match, and other control-flow constructs are only used as statements; they cannot be used as expressions;- calls to
awaitare not allowed in compound expressions; - execution order is reified in the tree by extracting temporary vals
- Definition Classes
- AnfTransform
- final class AsyncTransformer extends TypingTransformer
- trait AsyncTraverser extends Global.Traverser
Descends into the regions of the tree that are subject to the translation to a state machine by
async.Descends into the regions of the tree that are subject to the translation to a state machine by
async. When a nested template, function, or by-name argument is encountered, the descent stops, andnestedClassetc are invoked.- Definition Classes
- TransformUtils
- final class MatchResultTransformer extends AnfTransform.ThicketTransformer
- Definition Classes
- AnfTransform
- class Tracing extends AnyRef
- Definition Classes
- AnfTransform
- class AsyncTransformState extends AnyRef
- Definition Classes
- AsyncTransformStates
- trait AsyncBlock extends AnyRef
- Definition Classes
- ExprBuilder
- final class AsyncState extends AnyRef
- Definition Classes
- ExprBuilder
Abstract Value Members
- abstract val global: Global
- Definition Classes
- AsyncTransformStates → TypingTransformers
- abstract val runsAfter: List[String]
Names of phases that must run before this phase.
Names of phases that must run before this phase.
- Definition Classes
- SubComponent
- abstract val runsRightAfter: Option[String]
Name of the phase that this phase must follow immediately.
Name of the phase that this phase must follow immediately.
- Definition Classes
- SubComponent
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from AsyncPhase toany2stringadd[AsyncPhase] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (AsyncPhase, B)
- Implicit
- This member is added by an implicit conversion from AsyncPhase toArrowAssoc[AsyncPhase] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- lazy val IllegalStateExceptionClass: Global.Symbol
- Definition Classes
- TransformUtils
- lazy val IllegalStateExceptionClass_NEW_String: Global.Symbol
- Definition Classes
- TransformUtils
- def adaptToUnit(rhs: List[Global.Tree]): Global.Block
- Definition Classes
- TransformUtils
- def addLabelState(label: Global.Symbol): Int
- Definition Classes
- ExprBuilder
- final def afterOwnPhase[T](op: => T): T
- Definition Classes
- SubComponent
- Annotations
- @inline()
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def assignUnitType(t: Global.Tree): t.type
- Definition Classes
- TransformUtils
- final def beforeOwnPhase[T](op: => T): T
- Definition Classes
- SubComponent
- Annotations
- @inline()
- def buildAsyncBlock(block: Global.Block): AsyncBlock
Uses
AsyncBlockBuilderto create an instance ofAsyncBlock.Uses
AsyncBlockBuilderto create an instance ofAsyncBlock.- block
a
Blocktree in ANF- returns
an
AsyncBlock
- Definition Classes
- ExprBuilder
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- final def containsAwait(t: Global.Tree): Boolean
Efficiently decorate each subtree within
twith the result oft exists isAwait, and return a function that can be used on derived trees to efficiently test the same condition.Efficiently decorate each subtree within
twith the result oft exists isAwait, and return a function that can be used on derived trees to efficiently test the same condition.If the derived tree contains synthetic wrapper trees, these will be recursed into in search of a sub tree that was decorated with the cached answer.
Requires markContainsAwaitTraverser has previously traversed
t.- Definition Classes
- TransformUtils
- final def deriveTree(tree: Global.Tree, exprType: Global.Type)(deriveExpr: (Global.Tree) => Global.Tree): Global.Tree
- Definition Classes
- TransformUtils
- def enabled: Boolean
Is this component enabled? Default is true.
Is this component enabled? Default is true.
- Definition Classes
- AsyncPhase → SubComponent
- def ensuring(cond: (AsyncPhase) => Boolean, msg: => Any): AsyncPhase
- Implicit
- This member is added by an implicit conversion from AsyncPhase toEnsuring[AsyncPhase] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (AsyncPhase) => Boolean): AsyncPhase
- Implicit
- This member is added by an implicit conversion from AsyncPhase toEnsuring[AsyncPhase] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): AsyncPhase
- Implicit
- This member is added by an implicit conversion from AsyncPhase toEnsuring[AsyncPhase] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): AsyncPhase
- Implicit
- This member is added by an implicit conversion from AsyncPhase toEnsuring[AsyncPhase] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def fieldsToNullOut(asyncStates: List[AsyncState], finalState: AsyncState, liftables: List[Global.Tree]): LinkedHashMap[Int, (LinkedHashSet[Global.Symbol], LinkedHashSet[Global.Symbol])]
Live variables data-flow analysis.
Live variables data-flow analysis.
Find, for each lifted field, the last state where the field is used.
- asyncStates
the states of an
asyncblock- liftables
the lifted fields
- returns
a map which indicates fields which are used for the final time in each state.
- Definition Classes
- LiveVariables
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- final def flattenBlock(tree: Global.Tree)(f: (Global.Tree) => Unit): Unit
- Definition Classes
- TransformUtils
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from AsyncPhase toStringFormat[AsyncPhase] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def hashCode(): Int
SubComponents are added to a HashSet and two phases are the same if they have the same name.
SubComponents are added to a HashSet and two phases are the same if they have the same name.
- Definition Classes
- SubComponent → AnyRef → Any
- 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
- def isAwait(fun: Global.Tree): Boolean
- Definition Classes
- TransformUtils
- def isBooleanAnd(sym: Global.Symbol): Boolean
- Definition Classes
- TransformUtils
- def isBooleanOr(sym: Global.Symbol): Boolean
- Definition Classes
- TransformUtils
- def isCaseLabel(sym: Global.Symbol): Boolean
- Definition Classes
- TransformUtils
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def isLabel(sym: Global.Symbol): Boolean
- Definition Classes
- TransformUtils
- def isLiteralUnit(t: Global.Tree): Boolean
- Definition Classes
- TransformUtils
- val isMatchEnd: (Global.Tree) => Boolean
- Definition Classes
- TransformUtils
- def isMatchEndLabel(sym: Global.Symbol): Boolean
- Definition Classes
- TransformUtils
- def isUnitType(tp: Global.Type): Boolean
- Definition Classes
- TransformUtils
- def liftables(asyncStates: List[AsyncState]): List[Global.Tree]
Identify which DefTrees are used (including transitively) which are declared in some state but used (including transitively) in another state.
Identify which DefTrees are used (including transitively) which are declared in some state but used (including transitively) in another state.
These will need to be lifted to class members of the state machine.
- Definition Classes
- Lifter
- def listToBlock(trees: List[Global.Tree]): Global.Block
- Definition Classes
- TransformUtils
- def literalBool(b: Boolean): Global.Tree
- Definition Classes
- TransformUtils
- def literalBoxedUnit: Global.Tree
- Definition Classes
- TransformUtils
- def literalUnit: Global.Tree
- Definition Classes
- TransformUtils
- def markContainsAwait(t: Global.Tree): Unit
- Definition Classes
- TransformUtils
- final def markForAsyncTransform(owner: Global.Symbol, method: Global.DefDef, awaitMethod: Global.Symbol, config: Map[String, AnyRef]): Global.DefDef
Mark the given method as requiring an async transform.
Mark the given method as requiring an async transform. Refer to documentation in the public API that forwards to this method in src/reflect/scala/reflect/api/Internals.scala
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def newPhase(prev: nsc.Phase): StdPhase
Create a new phase which applies transformer
Create a new phase which applies transformer
- Definition Classes
- Transform → SubComponent
- def newRootLocalTyper(unit: Global.CompilationUnit): (analyzer)#Typer
- Attributes
- protected
- Definition Classes
- TypingTransformers
- def newTransformer(unit: Global.CompilationUnit): Global.Transformer
The transformer factory
The transformer factory
- Definition Classes
- AsyncPhase → Transform
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- 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
- AsyncPhase → SubComponent
- def phaseNewFlags: Long
New flags defined by the phase which are not valid before
New flags defined by the phase which are not valid before
- Definition Classes
- 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 reportUnsupportedAwaits(tree: Global.Tree): Unit
Analyze the contents of an
asyncblock in order to: - Report unsupportedawaitcalls under nested templates, functions, by-name arguments.Analyze the contents of an
asyncblock in order to: - Report unsupportedawaitcalls under nested templates, functions, by-name arguments.Must be called on the original tree, not on the ANF transformed tree.
- Definition Classes
- AsyncAnalysis
- 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 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
- def statsAndExpr(tree: Global.Tree): (List[Global.Tree], Global.Tree)
- Definition Classes
- TransformUtils
- def substituteTrees(t: Global.Tree, from: List[Global.Symbol], to: List[Global.Tree]): Global.Tree
- Definition Classes
- TransformUtils
- 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 toMultiMap[A, B](abs: Iterable[(A, B)]): LinkedHashMap[A, List[B]]
- Definition Classes
- TransformUtils
- def toString(): String
- Definition Classes
- AnyRef → Any
- val tracing: Tracing
- Attributes
- protected[async]
- Definition Classes
- AsyncPhase → AnfTransform
- def typed(tree: Global.Tree): Global.Tree
- Definition Classes
- TransformUtils
- def typedPos(pos: Global.Position)(tree: Global.Tree): Global.Tree
- Definition Classes
- TransformUtils
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- object MatchEnd
- Definition Classes
- TransformUtils
- object UnwrapBoxedUnit
- Definition Classes
- TransformUtils
- object cleanupContainsAwaitAttachments extends Global.Traverser
- Definition Classes
- TransformUtils
Deprecated Value Members
- def →[B](y: B): (AsyncPhase, B)
- Implicit
- This member is added by an implicit conversion from AsyncPhase toArrowAssoc[AsyncPhase] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
->instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.
The Scala compiler and reflection APIs.