slick.compiler

RewriteJoins

Related Doc: package compiler

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
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Inherited
  1. RewriteJoins
  2. Phase
  3. Logging
  4. Function1
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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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 +(other: String): String

    Implicit information
    This member is added by an implicit conversion from RewriteJoins to any2stringadd[RewriteJoins] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (RewriteJoins, B)

    Implicit information
    This member is added by an implicit conversion from RewriteJoins to ArrowAssoc[RewriteJoins] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

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

    Definition Classes
    AnyRef → Any

  6. def and(p1Opt: Option[Node], p2: Node): Node

  7. def and(ns: IndexedSeq[Node]): Node

  8. def andThen[A](g: (CompilerState) ⇒ A): (CompilerState) ⇒ A

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  9. def apply(state: CompilerState): CompilerState

    Run the phase

    Run the phase

    Definition Classes
    RewriteJoins → Phase → Function1

  10. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  11. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  12. def compose[A](g: (A) ⇒ CompilerState): (A) ⇒ CompilerState

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  13. 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 the join.

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

  14. def ensuring(cond: (RewriteJoins) ⇒ Boolean, msg: ⇒ Any): RewriteJoins

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

  15. def ensuring(cond: (RewriteJoins) ⇒ Boolean): RewriteJoins

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

  16. def ensuring(cond: Boolean, msg: ⇒ Any): RewriteJoins

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

  17. def ensuring(cond: Boolean): RewriteJoins

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

  18. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  19. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  20. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  21. 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.

  22. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from RewriteJoins to StringFormat[RewriteJoins] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  23. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  24. def hasRefTo(n: Node, s: Set[TermSymbol]): Boolean

  25. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  26. 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).

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

    Hoist Filter nodes in Join generators into join predicates.

  28. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  29. lazy val logger: SlickLogger

    Attributes
    protected[this]
    Definition Classes
    Logging

  30. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    RewriteJoins → Phase

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

    Definition Classes
    AnyRef

  32. final def notify(): Unit

    Definition Classes
    AnyRef

  33. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  34. def rearrangeJoinConditions(j: Join): 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.

  35. def splitConjunctions(n: Node): IndexedSeq[Node]

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

    Definition Classes
    AnyRef

  37. def toString(): String

    Definition Classes
    Function1 → AnyRef → Any

  38. def tr(n: Node): Node

  39. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  40. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  41. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  42. def →[B](y: B): (RewriteJoins, B)

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

Inherited from Phase

Inherited from Logging

Inherited from (CompilerState) ⇒ CompilerState

Inherited from AnyRef

Inherited from Any

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

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

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

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

Ungrouped