dotty.tools.dotc.transform

LazyVals

Related Docs: object LazyVals | package transform

class LazyVals extends MiniPhaseTransform with IdentityDenotTransformer

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Inherited
  1. LazyVals
  2. IdentityDenotTransformer
  3. DenotTransformer
  4. MiniPhaseTransform
  5. MiniPhase
  6. Phase
  7. TreeTransform
  8. DotClass
  9. AnyRef
  10. Any
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Instance Constructors

  1. new LazyVals()

Type Members

  1. class OffsetInfo extends AnyRef

    this map contains mutable state of transformation: OffsetDefs to be appended to companion object definitions, and number of bits currently used

Value Members

  1. final def !=(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Definition Classes
    AnyRef → Any
  3. final def <=(that: Phase): Boolean

    Definition Classes
    Phase
  4. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  5. val appendOffsetDefs: Map[Symbol, OffsetInfo]

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def atGroupEnd[T](action: (Context) ⇒ T)(implicit ctx: Context, info: TransformerInfo): T

    Definition Classes
    TreeTransform
  8. def checkPostCondition(tree: ast.tpd.Tree)(implicit ctx: Context): Unit

    Check what the phase achieves, to be called at any point after it is finished.

    Check what the phase achieves, to be called at any point after it is finished.

    Definition Classes
    Phase
  9. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  10. val containerFlags: FlagSet

  11. val containerFlagsMask: FlagSet

  12. def description: String

    Definition Classes
    Phase
  13. def end: PhaseId

    Definition Classes
    Phase
  14. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  15. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  16. final def erasedTypes: Boolean

    Definition Classes
    Phase
  17. def exists: Boolean

    Definition Classes
    Phase
  18. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  19. final def flatClasses: Boolean

    Definition Classes
    Phase
  20. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  21. final def hasNext: Boolean

    Definition Classes
    Phase
  22. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  23. def id: Int

    The sequence position of this phase in the given context where 0 is reserved for NoPhase and the first real phase is at position 1.

    The sequence position of this phase in the given context where 0 is reserved for NoPhase and the first real phase is at position 1. -1 if the phase is not installed in the context.

    Definition Classes
    Phase
  24. var idx: Int

    id of this mini phase in group

    id of this mini phase in group

    Definition Classes
    MiniPhase
  25. def init(base: ContextBase, id: Int): Unit

    Attributes
    protected[dotty.tools.dotc.core.Phases]
    Definition Classes
    Phase
  26. def init(base: ContextBase, start: Int, end: Int): Unit

    Attributes
    protected[dotty.tools.dotc.core.Phases]
    Definition Classes
    Phase
  27. val initFlags: FlagSet

  28. def isCheckable: Boolean

    Output should be checkable by TreeChecker

    Output should be checkable by TreeChecker

    Definition Classes
    Phase
  29. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  30. def isTyper: Boolean

    Is this phase the standard typerphase? True for FrontEnd, but not for other first phases (such as FromTasty).

    Is this phase the standard typerphase? True for FrontEnd, but not for other first phases (such as FromTasty). The predicate is tested in some places that perform checks and corrections. It's different from isAfterTyper (and cheaper to test).

    Definition Classes
    Phase
  31. final def iterator: Iterator[Phase]

    Definition Classes
    Phase
  32. final def labelsReordered: Boolean

    Definition Classes
    Phase
  33. def lastPhaseId(implicit ctx: Context): Int

    The last phase during which the transformed denotations are valid

    The last phase during which the transformed denotations are valid

    Definition Classes
    DenotTransformer
  34. def mkDefNonThreadSafeNonNullable(target: Symbol, rhs: ast.tpd.Tree)(implicit ctx: Context): ast.tpd.If

    Create non-threadsafe lazy accessor for not-nullable types equivalent to such code def methodSymbol() = { if (target eq null) { target = rhs target } else target }

  35. def mkNonThreadSafeDef(target: ast.tpd.Tree, flag: ast.tpd.Tree, rhs: ast.tpd.Tree)(implicit ctx: Context): ast.tpd.If

    Create non-threadsafe lazy accessor equivalent to such code def methodSymbol() = { if (flag) target else { target = rhs flag = true target } }

  36. def mkThreadSafeDef(methodSymbol: TermSymbol, claz: ClassSymbol, ord: Int, target: Symbol, rhs: ast.tpd.Tree, tp: Type, offset: ast.tpd.Tree, getFlag: ast.tpd.Tree, stateMask: ast.tpd.Tree, casFlag: ast.tpd.Tree, setFlagState: ast.tpd.Tree, waitOnLock: ast.tpd.Tree)(implicit ctx: Context): ast.tpd.DefDef

    Create a threadsafe lazy accessor equivalent to such code

    Create a threadsafe lazy accessor equivalent to such code

    def methodSymbol(): Int = { val result: Int = 0 val retry: Boolean = true var flag: Long = 0L while retry do { flag = dotty.runtime.LazyVals.get(this, $claz.$OFFSET) dotty.runtime.LazyVals.STATE(flag, 0) match { case 0 => if dotty.runtime.LazyVals.CAS(this, $claz.$OFFSET, flag, 1, $ord) { try {result = rhs} catch { case x: Throwable => dotty.runtime.LazyVals.setFlag(this, $claz.$OFFSET, 0, $ord) throw x } $target = result dotty.runtime.LazyVals.setFlag(this, $claz.$OFFSET, 3, $ord) retry = false } case 1 => dotty.runtime.LazyVals.wait4Notification(this, $claz.$OFFSET, flag, $ord) case 2 => dotty.runtime.LazyVals.wait4Notification(this, $claz.$OFFSET, flag, $ord) case 3 => retry = false result = $target } } result }

  37. def mkTreeTransformer: TreeTransformer

    Attributes
    protected
    Definition Classes
    MiniPhase
  38. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  39. final def next: Phase

    Definition Classes
    Phase
  40. final def notify(): Unit

    Definition Classes
    AnyRef
  41. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  42. def period: Period

    Definition Classes
    Phase
  43. def phase: MiniPhaseTransform

    Definition Classes
    MiniPhaseTransformTreeTransform
  44. def phaseName: String

    Definition Classes
    LazyValsPhase
  45. def prepareForAlternative(tree: ast.tpd.Alternative)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  46. def prepareForApply(tree: ast.tpd.Apply)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  47. def prepareForAssign(tree: ast.tpd.Assign)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  48. def prepareForBind(tree: ast.tpd.Bind)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  49. def prepareForBlock(tree: ast.tpd.Block)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  50. def prepareForCaseDef(tree: ast.tpd.CaseDef)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  51. def prepareForClosure(tree: ast.tpd.Closure)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  52. def prepareForDefDef(tree: ast.tpd.DefDef)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  53. def prepareForIdent(tree: ast.tpd.Ident)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  54. def prepareForIf(tree: ast.tpd.If)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  55. def prepareForInlined(tree: ast.tpd.Inlined)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  56. def prepareForLiteral(tree: ast.tpd.Literal)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  57. def prepareForMatch(tree: ast.tpd.Match)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  58. def prepareForNew(tree: ast.tpd.New)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  59. def prepareForPackageDef(tree: ast.tpd.PackageDef)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  60. def prepareForReturn(tree: ast.tpd.Return)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  61. def prepareForSelect(tree: ast.tpd.Select)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  62. def prepareForSeqLiteral(tree: ast.tpd.SeqLiteral)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  63. def prepareForStats(trees: List[ast.tpd.Tree])(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  64. def prepareForSuper(tree: ast.tpd.Super)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  65. def prepareForTemplate(tree: ast.tpd.Template)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  66. def prepareForThis(tree: ast.tpd.This)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  67. def prepareForTry(tree: ast.tpd.Try)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  68. def prepareForTypeApply(tree: ast.tpd.TypeApply)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  69. def prepareForTypeDef(tree: ast.tpd.TypeDef)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  70. def prepareForTypeTree(tree: ast.tpd.TypeTree)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  71. def prepareForTyped(tree: ast.tpd.Typed)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  72. def prepareForUnApply(tree: ast.tpd.UnApply)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  73. def prepareForUnit(tree: ast.tpd.Tree)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  74. def prepareForValDef(tree: ast.tpd.ValDef)(implicit ctx: Context): TreeTransform

    Definition Classes
    TreeTransform
  75. final def prev: Phase

    Definition Classes
    Phase
  76. final def refChecked: Boolean

    Definition Classes
    Phase
  77. def relaxedTyping: Boolean

    If set, allow missing or superfluous arguments in applications and type applications.

    If set, allow missing or superfluous arguments in applications and type applications.

    Definition Classes
    Phase
  78. def run(implicit ctx: Context): Unit

    Definition Classes
    MiniPhasePhase
  79. def runOn(units: List[CompilationUnit])(implicit ctx: Context): List[CompilationUnit]

    Definition Classes
    Phase
  80. def runsAfter: Set[Class[_ <: Phase]]

    List of names of phases that should have finished processing of tree before this phase starts processing same tree

    List of names of phases that should have finished processing of tree before this phase starts processing same tree

    Definition Classes
    LazyValsPhase
  81. def runsAfterGroupsOf: Set[Class[_ <: Phase]]

    List of names of phases that should have finished their processing of all compilation units before this phase starts

    List of names of phases that should have finished their processing of all compilation units before this phase starts

    Definition Classes
    MiniPhase
  82. def start: Int

    Definition Classes
    Phase
  83. final def symbolicRefs: Boolean

    Definition Classes
    Phase
  84. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  85. def toString(): String

    Definition Classes
    Phase → AnyRef → Any
  86. def transform(ref: SingleDenotation)(implicit ctx: Context): SingleDenotation

    The transformation method

    The transformation method

    Definition Classes
    IdentityDenotTransformerDenotTransformer
  87. def transform(tree: ast.tpd.Tree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Transform tree using all transforms of current group (including this one)

    Transform tree using all transforms of current group (including this one)

    Definition Classes
    TreeTransform
  88. def transformAlternative(tree: ast.tpd.Alternative)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  89. def transformApply(tree: ast.tpd.Apply)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  90. def transformAssign(tree: ast.tpd.Assign)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  91. def transformBind(tree: ast.tpd.Bind)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  92. def transformBlock(tree: ast.tpd.Block)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  93. def transformCaseDef(tree: ast.tpd.CaseDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  94. def transformClosure(tree: ast.tpd.Closure)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  95. def transformDefDef(tree: ast.tpd.DefDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    LazyValsTreeTransform
  96. def transformFollowing(tree: ast.tpd.Tree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Transform single node using all transforms following the current one in this group

    Transform single node using all transforms following the current one in this group

    Definition Classes
    TreeTransform
  97. def transformFollowingDeep(tree: ast.tpd.Tree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Transform subtree using all transforms following the current one in this group

    Transform subtree using all transforms following the current one in this group

    Definition Classes
    TreeTransform
  98. def transformIdent(tree: ast.tpd.Ident)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  99. def transformIf(tree: ast.tpd.If)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  100. def transformInlined(tree: ast.tpd.Inlined)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  101. def transformLazyVal(tree: ast.tpd.ValOrDefDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

  102. def transformLiteral(tree: ast.tpd.Literal)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  103. def transformLocalDef(x: ast.tpd.ValOrDefDef)(implicit ctx: Context): ast.tpd.Thicket

    Replace a local lazy val inside a method, with a LazyHolder from dotty.runtime(eg dotty.runtime.LazyInt)

  104. def transformMatch(tree: ast.tpd.Match)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  105. def transformMemberDefNonVolatile(x: ast.tpd.ValOrDefDef)(implicit ctx: Context): ast.tpd.Thicket

  106. def transformMemberDefVolatile(x: ast.tpd.ValOrDefDef)(implicit ctx: Context): ast.tpd.Thicket

  107. def transformNew(tree: ast.tpd.New)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  108. def transformOther(tree: ast.tpd.Tree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  109. def transformPackageDef(tree: ast.tpd.PackageDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  110. def transformReturn(tree: ast.tpd.Return)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  111. def transformSelect(tree: ast.tpd.Select)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  112. def transformSeqLiteral(tree: ast.tpd.SeqLiteral)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  113. def transformStats(trees: List[ast.tpd.Tree])(implicit ctx: Context, info: TransformerInfo): List[ast.tpd.Tree]

    Definition Classes
    LazyValsTreeTransform
  114. def transformSuper(tree: ast.tpd.Super)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  115. def transformSyntheticModule(tree: ast.tpd.ValOrDefDef)(implicit ctx: Context): ast.tpd.Thicket

    Make an eager val that would implement synthetic module.

    Make an eager val that would implement synthetic module. Eager val ensures thread safety and has less code generated.

  116. def transformTemplate(template: ast.tpd.Template)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Append offset fields to companion objects

    Append offset fields to companion objects

    Definition Classes
    LazyValsTreeTransform
  117. def transformThis(tree: ast.tpd.This)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  118. def transformTry(tree: ast.tpd.Try)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  119. def transformTypeApply(tree: ast.tpd.TypeApply)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  120. def transformTypeDef(tree: ast.tpd.TypeDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  121. def transformTypeTree(tree: ast.tpd.TypeTree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  122. def transformTyped(tree: ast.tpd.Typed)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  123. def transformUnApply(tree: ast.tpd.UnApply)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  124. def transformUnit(tree: ast.tpd.Tree)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    TreeTransform
  125. def transformValDef(tree: ast.tpd.ValDef)(implicit ctx: Context, info: TransformerInfo): ast.tpd.Tree

    Definition Classes
    LazyValsTreeTransform
  126. def transformer: LazyVals

  127. def treeTransform: MiniPhaseTransform

    Definition Classes
    MiniPhaseTransformMiniPhase
  128. def treeTransformPhase: Phase

    Definition Classes
    TreeTransform
  129. def unsupported(methodName: String): Nothing

    Throws an UnsupportedOperationException with the given method name.

    Throws an UnsupportedOperationException with the given method name.

    Definition Classes
    DotClass
  130. def validFor(implicit ctx: Context): Period

    The validity period of the transformer in the given context

    The validity period of the transformer in the given context

    Definition Classes
    DenotTransformer
  131. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  132. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  133. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from IdentityDenotTransformer

Inherited from DenotTransformer

Inherited from MiniPhaseTransform

Inherited from MiniPhase

Inherited from Phase

Inherited from TreeTransform

Inherited from DotClass

Inherited from AnyRef

Inherited from Any

Ungrouped