c

slick.compiler

RewriteJoins

class RewriteJoins extends Phase

Rewrite monadic joins to applicative joins. After this phase all Bind nodes are of the form Bind(_, _, Pure(_, _)) (i.e. flatMap has been reduced to map).

Source
RewriteJoins.scala
Linear Supertypes
Phase, Logging, (CompilerState) => CompilerState, AnyRef, Any
Type Hierarchy
Ordering
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  2. By Inheritance
Inherited
  1. RewriteJoins
  2. Phase
  3. Logging
  4. Function1
  5. AnyRef
  6. Any
Implicitly
  1. by StringFormat
  2. by Ensuring
  3. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new RewriteJoins()

Type Members

  1. abstract type State

    The immutable state of the phase that can also be accessed by other phases.

    The immutable state of the phase that can also be accessed by other phases.

    Definition Classes
    Phase

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. def ->[B](y: B): (RewriteJoins, B)
    Implicit
    This member is added by an implicit conversion from RewriteJoins toArrowAssoc[RewriteJoins] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  4. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  5. def and(p1Opt: Option[Node], p2: Node): Node
  6. def and(ns: IndexedSeq[Node]): Node
  7. def andThen[A](g: (CompilerState) => A): (CompilerState) => A
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  8. def apply(state: CompilerState): CompilerState

    Run the phase

    Run the phase

    Definition Classes
    RewriteJoins → Phase → Function1
  9. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  10. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  11. def compose[A](g: (A) => CompilerState): (A) => CompilerState
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  12. def eliminateIllegalRefs(j: Join, illegal: Set[TermSymbol], outsideRef: TermSymbol): (Join, Map[List[TermSymbol], Node])

    Recursively push refs from the right-hand side of a Join to the left-hand side out of the join.

    Recursively push refs from the right-hand side of a Join to the left-hand side out of the join. This is only possible when they occur in a a mapping Bind(_, _, Pure(StructNode)) directly at the RHS of a Join. Returns the (possibly transformed) Join and replacements for forward paths into it.

    TODO: If the remainder of the mapping Bind is purely aliasing, eliminate it entirely.

  13. def ensuring(cond: (RewriteJoins) => Boolean, msg: => Any): RewriteJoins
    Implicit
    This member is added by an implicit conversion from RewriteJoins toEnsuring[RewriteJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. def ensuring(cond: (RewriteJoins) => Boolean): RewriteJoins
    Implicit
    This member is added by an implicit conversion from RewriteJoins toEnsuring[RewriteJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  15. def ensuring(cond: Boolean, msg: => Any): RewriteJoins
    Implicit
    This member is added by an implicit conversion from RewriteJoins toEnsuring[RewriteJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  16. def ensuring(cond: Boolean): RewriteJoins
    Implicit
    This member is added by an implicit conversion from RewriteJoins toEnsuring[RewriteJoins] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  19. def flattenAliasingMap(b: Bind): Bind

    Merge nested mapping operations of the form Bind(_, Bind(_, _, Pure(StructNode(p1), _)), Pure(StructNode(p2), _)) into a single Bind, provided that each element of either p1 or p2 contains not more than one path.

    Merge nested mapping operations of the form Bind(_, Bind(_, _, Pure(StructNode(p1), _)), Pure(StructNode(p2), _)) into a single Bind, provided that each element of either p1 or p2 contains not more than one path. This transformation is not required for the correctness of join rewriting but it keeps the tree smaller to speed up subsequent phases.

  20. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  21. def hasRefTo(n: Node, s: Set[TermSymbol]): Boolean
  22. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  23. def hoistFilterFromBind(b: Bind): (Node, Set[TypeSymbol])

    Recursively hoist Filter out of of Bind(_, Filter, Pure(StructNode)).

    Recursively hoist Filter out of of Bind(_, Filter, Pure(StructNode)). Returns the possibly modified tree plus a set of invalidated TypeSymbols (non-empty if additional columns have to be added to the base projection for the filters).

  24. def hoistFilters(j: Join): (Join, Set[TypeSymbol])

    Hoist Filter nodes in Join generators into join predicates.

  25. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  26. lazy val logger: SlickLogger
    Attributes
    protected[this]
    Definition Classes
    Logging
  27. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    RewriteJoins → Phase
  28. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  29. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  30. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  31. def rearrangeJoinConditions(j: Join, alsoPull: Set[TermSymbol]): Join

    In a Join(s1, _, _, Join(_, _, _, _, JoinType.Inner, on2), JoinType.Inner, on1) where parts of on2 refer to s1, merge them into on1.

    In a Join(s1, _, _, Join(_, _, _, _, JoinType.Inner, on2), JoinType.Inner, on1) where parts of on2 refer to s1, merge them into on1. Nested joins are processed recursively. The same is done in the opposite direction, pushing predicates down into sub-joins if they only reference one side of the join.

  32. def splitConjunctions(n: Node): IndexedSeq[Node]
  33. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  34. def toString(): String
    Definition Classes
    Function1 → AnyRef → Any
  35. def tr(n: Node): Node
  36. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  37. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  38. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated
  2. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from RewriteJoins toStringFormat[RewriteJoins] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @deprecated @inline()
    Deprecated

    (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.

  3. def →[B](y: B): (RewriteJoins, B)
    Implicit
    This member is added by an implicit conversion from RewriteJoins toArrowAssoc[RewriteJoins] 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.

Inherited from Phase

Inherited from Logging

Inherited from (CompilerState) => CompilerState

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringFormat fromRewriteJoins to StringFormat[RewriteJoins]

Inherited by implicit conversion Ensuring fromRewriteJoins to Ensuring[RewriteJoins]

Inherited by implicit conversion ArrowAssoc fromRewriteJoins to ArrowAssoc[RewriteJoins]

Ungrouped