trait MatchAnalysis extends MatchApproximation
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- trait MatchMonadInterface extends AnyRef
Interface with user-defined match monad? if there's a
__match
in scope, we use this as the match strategy, assuming it conforms to MatchStrategy as defined below:Interface with user-defined match monad? if there's a
__match
in scope, we use this as the match strategy, assuming it conforms to MatchStrategy as defined below:type Matcher[P[_], M[+_], A] = { def flatMap[B](f: P[A] => M[B]): M[B] def orElse[B >: A](alternative: => M[B]): M[B] } abstract class MatchStrategy[P[_], M[+_]] { // runs the matcher on the given input def runOrElse[T, U](in: P[T])(matcher: P[T] => M[U]): P[U] def zero: M[Nothing] def one[T](x: P[T]): M[T] def guard[T](cond: P[Boolean], then: => P[T]): M[T] }
P and M are derived from one's signature (
def one[T](x: P[T]): M[T]
)if no
__match
is found, we assume the following implementation (and generate optimized code accordingly)object __match extends MatchStrategy[({type Id[x] = x})#Id, Option] { def zero = None def one[T](x: T) = Some(x) // NOTE: guard's return type must be of the shape M[T], where M is the monad in which the pattern match should be interpreted def guard[T](cond: Boolean, then: => T): Option[T] = if(cond) Some(then) else None def runOrElse[T, U](x: T)(f: T => Option[U]): U = f(x) getOrElse (throw new MatchError(x)) }
- Definition Classes
- Interface
- trait TypedSubstitution extends MatchMonadInterface
- Definition Classes
- Interface
- trait PropositionalLogic extends AnyRef
- Definition Classes
- Logic
- trait MatchAnalyzer extends MatchApproximator
- trait MatchApproximator extends TreeMakers with TreesAndTypesDomain
Represent a match as a formula in propositional logic that encodes whether the match matches (abstractly: we only consider types)
Represent a match as a formula in propositional logic that encodes whether the match matches (abstractly: we only consider types)
- Definition Classes
- MatchApproximation
- trait CodegenCore extends MatchMonadInterface
- Definition Classes
- MatchCodeGen
- trait OptimizedCodegen extends CodegenCore with TypedSubstitution with MatchMonadInterface
- Definition Classes
- MatchCodeGen
- final case class Suppression(suppressExhaustive: Boolean, suppressUnreachable: Boolean) extends Product with Serializable
- Definition Classes
- MatchTreeMaking
- trait TreeMakers extends TypedSubstitution with CodegenCore
- Definition Classes
- MatchTreeMaking
- trait TreesAndTypesDomain extends PropositionalLogic with CheckableTreeAndTypeAnalysis
- Definition Classes
- ScalaLogic
- trait CheckableTreeAndTypeAnalysis extends AnyRef
- Definition Classes
- TreeAndTypeAnalysis
Concrete Value Members
- object CODE
- Definition Classes
- TreeDSL
- object debug
- Definition Classes
- Debugging
- object vpmName
- Definition Classes
- Interface
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##(): Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toany2stringadd[MatchAnalysis] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (MatchAnalysis, B)
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toArrowAssoc[MatchAnalysis] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def alignAcrossRows(xss: List[List[Any]], sep: String, lineSep: String = "\n"): String
- Definition Classes
- Logic
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def binderTypeImpliedByPattern(pat: Global.Tree, pt: Global.Type, binder: Global.Symbol): Global.Type
Compute the type T implied for a value
v
matched by a patternpat
(with expected typept
).Compute the type T implied for a value
v
matched by a patternpat
(with expected typept
).Usually, this is the pattern's type because pattern matching implies instance-of checks.
However, Stable Identifier and Literal patterns are matched using
==
, which does not imply a type for the binder that binds the matched value.See scala/bug#1503, scala/bug#5024: don't cast binders to types we're not sure they have
- Definition Classes
- TreeAndTypeAnalysis
- def clone(): AnyRef
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- protected[java.lang]
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- @native() @throws(classOf[java.lang.CloneNotSupportedException])
- final def dealiasWiden(tp: Global.Type): Global.Type
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- protected
- Definition Classes
- Interface
- def ensuring(cond: (MatchAnalysis) ⇒ Boolean, msg: ⇒ Any): MatchAnalysis
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toEnsuring[MatchAnalysis] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (MatchAnalysis) ⇒ Boolean): MatchAnalysis
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toEnsuring[MatchAnalysis] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: ⇒ Any): MatchAnalysis
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toEnsuring[MatchAnalysis] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): MatchAnalysis
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toEnsuring[MatchAnalysis] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- def equivalentTree(a: Global.Tree, b: Global.Tree): Boolean
- Definition Classes
- TreeAndTypeAnalysis
- def finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toStringFormat[MatchAnalysis] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
- final def getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- final def hasStableSymbol(p: Global.Tree): Boolean
- Attributes
- protected
- Definition Classes
- Interface
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def instanceOfTpImplies(tp: Global.Type, tpImplied: Global.Type): Boolean
- Definition Classes
- TreeAndTypeAnalysis
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def mkFALSE: Global.Literal
- Attributes
- protected
- Definition Classes
- Interface
- final def mkTRUE: Global.Literal
- Attributes
- protected
- Definition Classes
- Interface
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @throws(classOf[java.lang.InterruptedException])
- def →[B](y: B): (MatchAnalysis, B)
- Implicit
- This member is added by an implicit conversion from MatchAnalysis toArrowAssoc[MatchAnalysis] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- object Suppression extends Serializable
- Definition Classes
- MatchTreeMaking
The Scala compiler and reflection APIs.