slick.compiler

MergeToComprehensions

Related Doc: package compiler

class MergeToComprehensions extends Phase

This phase merges nested nodes of types Bind, Filter, GroupBy, SortBy, Take, Drop, CollectionCast and Distinct to Comprehension nodes. Nodes can be merged if they occur in the following order:

[Source] -> Filter (where) -> GroupBy -> SortBy / (Distinct | Filter (having)) -> Take / Drop

Aliasing Binds and CollectionCasts are allowed everywhere in the chain. Any out of order operation starts a new chain with a subquery as the source.

Source
MergeToComprehensions.scala
Linear Supertypes
Phase, Logging, (CompilerState) ⇒ CompilerState, AnyRef, Any
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Inherited
  1. MergeToComprehensions
  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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  1. Public
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Instance Constructors

  1. new MergeToComprehensions()

Type Members

  1. type Mappings = ConstArray[((TypeSymbol, TermSymbol), List[TermSymbol])]

  2. type Replacements = Map[(TypeSymbol, TermSymbol), TermSymbol]

    A map from a TypeSymbol and a field on top of it to a new Symbol

  3. 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 MergeToComprehensions to any2stringadd[MergeToComprehensions] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

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

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

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

    Definition Classes
    AnyRef → Any

  6. object FwdPathOnTypeSymbol

  7. def and(p1: Node, p2: 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
    MergeToComprehensions → Phase → Function1

  10. def applyReplacements(n1: Node, r: Replacements, c: Comprehension): Node

    Apply the replacements and current selection of a Comprehension to a new Node that will be merged into the Comprehension.

  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  12. def buildSubquery(n: Node, mappings: Mappings): (Comprehension, Replacements)

    Lift a valid top-level or source Node into a subquery

  13. def clone(): AnyRef

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

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

    Definition Classes
    Function1
    Annotations
    @unspecialized()

  15. def convert(tree: Node): Node

  16. def dealias(n: Node)(f: (Node) ⇒ (Node, Mappings)): (Node, Mappings)

    Remove purely aliasing Bind mappings, apply the conversion to the source, then inject the mappings back into the source's mappings.

  17. def ensuring(cond: (MergeToComprehensions) ⇒ Boolean, msg: ⇒ Any): MergeToComprehensions

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

  18. def ensuring(cond: (MergeToComprehensions) ⇒ Boolean): MergeToComprehensions

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

  19. def ensuring(cond: Boolean, msg: ⇒ Any): MergeToComprehensions

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

  20. def ensuring(cond: Boolean): MergeToComprehensions

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

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

    Definition Classes
    AnyRef

  22. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  23. def finalize(): Unit

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

  24. def formatted(fmtstr: String): String

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

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

    Definition Classes
    AnyRef → Any

  26. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  27. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  28. lazy val logger: SlickLogger

    Attributes
    protected[this]
    Definition Classes
    Logging

  29. def mergeCommon(rec: (Node, Boolean) ⇒ (Comprehension, Replacements), parent: (Node, Boolean) ⇒ (Comprehension, Replacements), n: Node, buildBase: Boolean, allowFilter: Boolean = true): (Comprehension, Replacements)

    Merge the common operations Bind, Filter and CollectionCast into an existing Comprehension.

    Merge the common operations Bind, Filter and CollectionCast into an existing Comprehension. This method is used at different stages of the pipeline. If the Comprehension already contains a Distinct clause, it is pushed into a subquery.

  30. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    MergeToComprehensions → 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. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  35. def toString(): String

    Definition Classes
    Function1 → AnyRef → Any

  36. def toSubquery(n: Comprehension, r: Replacements): (Comprehension, Replacements)

  37. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  40. def →[B](y: B): (MergeToComprehensions, B)

    Implicit information
    This member is added by an implicit conversion from MergeToComprehensions to ArrowAssoc[MergeToComprehensions] 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 MergeToComprehensions to any2stringadd[MergeToComprehensions]

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

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

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

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