c

slick.compiler

MergeToComprehensions

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
Type Hierarchy
Ordering
  1. Alphabetic
  2. By Inheritance
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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Visibility
  1. Public
  2. All

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
    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
    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. def and(p1: Node, p2: 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
    MergeToComprehensions → Phase → Function1
  9. 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.

  10. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  11. def buildSubquery(n: Node, mappings: Mappings): (Comprehension, Replacements)

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

  12. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  13. def compose[A](g: (A) ⇒ CompilerState): (A) ⇒ CompilerState
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  14. def convert(tree: Node): Node
  15. 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.

  16. def ensuring(cond: (MergeToComprehensions) ⇒ Boolean, msg: ⇒ Any): MergeToComprehensions
    Implicit
    This member is added by an implicit conversion from MergeToComprehensions to Ensuring[MergeToComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  17. def ensuring(cond: (MergeToComprehensions) ⇒ Boolean): MergeToComprehensions
    Implicit
    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: Boolean, msg: ⇒ Any): MergeToComprehensions
    Implicit
    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): MergeToComprehensions
    Implicit
    This member is added by an implicit conversion from MergeToComprehensions to Ensuring[MergeToComprehensions] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  20. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  22. def formatted(fmtstr: String): String
    Implicit
    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()
  23. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  24. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  25. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  26. lazy val logger: SlickLogger
    Attributes
    protected[this]
    Definition Classes
    Logging
  27. 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.

  28. val name: String

    The unique name of the phase

    The unique name of the phase

    Definition Classes
    MergeToComprehensions → Phase
  29. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  30. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  31. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  32. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  33. def toString(): String
    Definition Classes
    Function1 → AnyRef → Any
  34. def toSubquery(n: Comprehension, r: Replacements): (Comprehension, Replacements)
  35. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  36. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  37. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  38. def →[B](y: B): (MergeToComprehensions, B)
    Implicit
    This member is added by an implicit conversion from MergeToComprehensions to ArrowAssoc[MergeToComprehensions] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
  39. object FwdPathOnTypeSymbol

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

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]

Ungrouped