abstract class TypeDescs extends Base
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Type Members
-
abstract
class
BaseDef[+T] extends Scalan.Node with Scalan.Def[T]
Base class for most predefined operations.
Base class for most predefined operations.
- Definition Classes
- Base
-
abstract
class
CompanionDef[T] extends Scalan.Node with Scalan.Def[T]
Base class for virtualized instances of type companions.
Base class for virtualized instances of type companions. Each virtualized entity type (trait or class) may have virtualized companion class.
- Definition Classes
- Base
-
case class
Const[T](x: T)(implicit eT: Scalan.Elem[T]) extends Scalan.BaseDef[T] with Product with Serializable
Default node type for embedding of literal values to graph IR.
Default node type for embedding of literal values to graph IR. This can be used or those types
T
whenElem[T]
is defined, butLiftable[_,T]
is not, i.e. for non-liftable types.- x
literal value
- eT
type descriptor of IR type T
- Definition Classes
- Base
-
trait
Def[+T] extends Scalan.Node
Base type for all graph nodes (aka computable value definitions).
Base type for all graph nodes (aka computable value definitions). Each graph node or definition represent one operation node of the data flow graph.
- Definition Classes
- Base
-
class
EntityObject extends AnyRef
Base class for all objects generated for virtualized types to support staged evaluation machinery.
Base class for all objects generated for virtualized types to support staged evaluation machinery. Each object contains definitions which can be imported when necessary. All that objects are registered in
entityObjects
hash map, which is done while IR cake is constructed.- Definition Classes
- Base
-
case class
EntityObjectOwner(obj: Scalan.EntityObject) extends Scalan.OwnerKind with Product with Serializable
- Definition Classes
- Base
-
abstract
class
Node extends Product
Base class for all IR nodes/operations/definitions.
Base class for all IR nodes/operations/definitions.
- Definition Classes
- Base
-
class
NotImplementedStagingException extends Scalan.StagingException
- Definition Classes
- Base
-
sealed abstract
class
OwnerKind extends AnyRef
Variants of
owner
parameter of constructors of nested classes: 1) predefined node classes are owned by IR cake (ScalanOwner) 2) entity classes are owned by enclosing EntityObjectVariants of
owner
parameter of constructors of nested classes: 1) predefined node classes are owned by IR cake (ScalanOwner) 2) entity classes are owned by enclosing EntityObject- Definition Classes
- Base
-
case class
Placeholder[T](eT: Scalan.LElem[T]) extends Scalan.Node with Scalan.Def[T] with Product with Serializable
Symbols may temporary refer to this node until their target node is updated.
Symbols may temporary refer to this node until their target node is updated.
- Definition Classes
- Base
-
abstract
class
Ref[+T] extends AnyRef
Abstract representation of a computable value.
Abstract representation of a computable value. Default implementation is a simple lightweight reference to the corresponding definition. Every Ref have direct access to its Def via
node
property. Every Ref is typed, and the type is avaliable viaelem
property.- Definition Classes
- Base
- See also
SingleRep
-
final
class
SingleRef[+T] extends Scalan.Ref[T]
A Ref is a symbolic reference used internally to refer to graph nodes.
A Ref is a symbolic reference used internally to refer to graph nodes. Light weight stateless immutable reference to a graph node (Def[T]). Two symbols are equal if they refer to the nodes with the same id, which is due to Def unification means equal symbols refer to the same instance of Def.
- Definition Classes
- Base
-
class
StagingException extends RuntimeException
- Definition Classes
- Base
-
abstract
class
Transformer extends AnyRef
Base class for Ref to Ref transformations.
Base class for Ref to Ref transformations. Each transformer keeps a mapping data between references to original nodes and references to the corresponding transformed nodes.
- Definition Classes
- Base
-
case class
Variable[T](varId: Int)(implicit eT: Scalan.LElem[T]) extends Scalan.Node with Scalan.Def[T] with Product with Serializable
Node class for typed variables.
Node class for typed variables. In particular for lambda-bound variables.
- varId
is independent from nodeId, shouldn't be used as node id.
- eT
type descriptor of the variable type
- Definition Classes
- Base
- abstract class BaseElem[A] extends Scalan.Elem[A] with Serializable with Equals
-
class
BaseElemLiftable[A] extends Scalan.BaseElem[A]
Type descriptor for primitive types.
Type descriptor for primitive types. There is implicit
val
declaration for each primitive type. -
abstract
class
Cont[F[_]] extends Scalan.TypeDesc
Descriptor of type constructor of
* -> *
kind.Descriptor of type constructor of
* -> *
kind. Type constructor is not a type, but rather a function from type to type. It contains methods which abstract relationship between typesT
,F[T]
etc.- Annotations
- @implicitNotFound( "No Cont available for ${F}." )
-
type
DataEnv = Map[Scalan.Sym, AnyRef]
Immutable data environment used to assign data values to graph nodes.
-
abstract
class
Elem[A] extends Scalan.TypeDesc
Type descriptor of staged types, which correspond to source (unstaged) RTypes defined outside of IR cake.
Type descriptor of staged types, which correspond to source (unstaged) RTypes defined outside of IR cake.
- A
the type represented by this descriptor
- Annotations
- @implicitNotFound( "No Elem available for ${A}." )
-
class
ElemCacheEntry extends AnyRef
Elements cache information for each Elem class.
-
case class
EnvRep[A](run: (Scalan.DataEnv) ⇒ (Scalan.DataEnv, Scalan.Ref[A])) extends Product with Serializable
State monad for symbols computed in a data environment.
State monad for symbols computed in a data environment.
DataEnv
is used as the state of the state monad. -
case class
FuncElem[A, B](eDom: Scalan.Elem[A], eRange: Scalan.Elem[B]) extends Scalan.Elem[(A) ⇒ B] with Product with Serializable
Type descriptor for
A => B
type where descriptors forA
andB
are given as arguments. - trait Functor[F[_]] extends Scalan.Cont[F]
-
type
LElem[A] = Lazy[Scalan.Elem[A]]
Type descriptor which is computed lazily on demand.
- sealed abstract class MethodDesc extends AnyRef
-
case class
PairElem[A, B](eFst: Scalan.Elem[A], eSnd: Scalan.Elem[B]) extends Scalan.Elem[(A, B)] with Product with Serializable
Type descriptor for
(A, B)
type where descriptors forA
andB
are given as arguments. -
type
RFunc[-A, +B] = Scalan.Ref[(A) ⇒ B]
- Definition Classes
- Base
- case class RMethodDesc(method: Method) extends Scalan.MethodDesc with Product with Serializable
-
type
RPair[+A, +B] = Scalan.Ref[(A, B)]
- Definition Classes
- Base
-
case class
SumElem[A, B](eLeft: Scalan.Elem[A], eRight: Scalan.Elem[B]) extends Scalan.Elem[Scalan.|[A, B]] with Product with Serializable
Type descriptor for
A | B
type where descriptors forA
andB
are given as arguments. -
type
Sym = Scalan.Ref[_]
Untyped shortcut sinonim of Ref, which is used as untyped reference to graph nodes (definitions).
Untyped shortcut sinonim of Ref, which is used as untyped reference to graph nodes (definitions). Following a tradition in compiler engineering we call references to definitions as symbols.
- Definition Classes
- Base
- abstract class TypeDesc extends Serializable
- case class WMethodDesc(wrapSpec: WrapSpec, method: Method) extends Scalan.MethodDesc with Product with Serializable
-
type
|[+A, +B] = Either[A, B]
- Definition Classes
- Base
Value Members
-
object
&&
Logical AND between two pattern matches of the save value
x
.Logical AND between two pattern matches of the save value
x
. Can be used to construct patterns likecase P1 && P2 => ...
- Definition Classes
- Base
-
object
Def
- Definition Classes
- Base
-
object
ExpWithElem
- Definition Classes
- Base
-
object
Liftables
Data type
ST
is liftable is there is Liftable[ST, T] instance for some typeT
.Data type
ST
is liftable is there is Liftable[ST, T] instance for some typeT
. Liftable typeclass allows to define which types can have values embedded as literals into graph IR.- Definition Classes
- Base
-
object
NoOwner extends Scalan.OwnerKind with Product with Serializable
- Definition Classes
- Base
-
object
ScalanOwner extends Scalan.OwnerKind with Product with Serializable
- Definition Classes
- Base
-
def
!!!(msg: String, e: Throwable, syms: Scalan.Ref[_]*): Nothing
- Definition Classes
- Base
-
def
!!!(msg: String, syms: Scalan.Ref[_]*): Nothing
- Definition Classes
- Base
-
def
!!!: Nothing
Helper methods to throw errors
Helper methods to throw errors
- Definition Classes
- Base
-
final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
???(value: Any, syms: Scalan.Ref[_]*): Nothing
- Definition Classes
- Base
-
def
???: Nothing
- Definition Classes
- Base
-
val
AnyElement: Scalan.Elem[Any]
Type descriptor for
Any
, cannot be used implicitly. -
val
AnyRefElement: Scalan.Elem[AnyRef]
Type descriptor for
AnyRef
, cannot be used implicitly. - implicit val BooleanElement: Scalan.Elem[Boolean]
- implicit val ByteElement: Scalan.Elem[Byte]
- implicit val CharElement: Scalan.Elem[Char]
- implicit val DoubleElement: Scalan.Elem[Double]
-
val
EmptyTypeArgs: ListMap[String, (Scalan.TypeDesc, Variance)]
Since ListMap is immutable this empty map can be shared by all other maps created from it.
- implicit val FloatElement: Scalan.Elem[Float]
- implicit final def FuncElemExtensions[A, B](eAB: Scalan.Elem[(A) ⇒ B]): Scalan.FuncElem[A, B]
- implicit val IntElement: Scalan.Elem[Int]
-
final
def
IntZero: Scalan.Ref[Int]
Zero literal node, which is lazily created and can be efficiently reused.
Zero literal node, which is lazily created and can be efficiently reused. Much faster alternative to
(0: Rep[Int])
ortoRep(0)
.- Definition Classes
- Base
- Annotations
- @inline()
-
val
LazyAnyElement: Lazy[Scalan.Elem[Any]]
Predefined Lazy value saved here to be used in hotspot code.
- implicit val LongElement: Scalan.Elem[Long]
- val NothingElement: Scalan.Elem[Nothing]
- implicit final def PairElemExtensions[A, B](eAB: Scalan.Elem[(A, B)]): Scalan.PairElem[A, B]
- implicit val ShortElement: Scalan.Elem[Short]
- implicit val StringElement: Scalan.Elem[String]
- implicit final def SumElemExtensions[A, B](eAB: Scalan.Elem[Scalan.|[A, B]]): Scalan.SumElem[A, B]
- final def TypeArgs(descs: (String, (Scalan.TypeDesc, Variance))*): ListMap[String, (Scalan.TypeDesc, Variance)]
- implicit val UnitElement: Scalan.Elem[Unit]
-
final
def
asElem[T](d: Scalan.TypeDesc): Scalan.Elem[T]
Helper type case method.
Helper type case method.
- Annotations
- @inline()
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
final
def
asRep[T](x: Scalan.Ref[_]): Scalan.Ref[T]
Helper to type cast node references.
Helper to type cast node references.
- Definition Classes
- Base
- Annotations
- @inline()
- def assertElem(value: Scalan.Ref[_], elem: Scalan.Elem[_], hint: ⇒ String): Unit
- def assertElem(value: Scalan.Ref[_], elem: Scalan.Elem[_]): Unit
- def assertEqualElems[A](e1: Scalan.Elem[A], e2: Scalan.Elem[A], m: ⇒ String): Unit
-
val
cacheElems: Boolean
Whether IR type descriptors should be cached.
Whether IR type descriptors should be cached.
- Definition Classes
- Base
-
val
cachePairs: Boolean
Whether Tup instances should be cached.
Whether Tup instances should be cached.
- Definition Classes
- Base
-
final
def
cachedElemByClass[E <: Scalan.Elem[_]](args: AnyRef*)(implicit clazz: Class[E]): E
Retrieve an instance of the given Elem class by either looking up in the cache or creating a new one.
Retrieve an instance of the given Elem class by either looking up in the cache or creating a new one. We assume that all Elem instances are uniquely defined by (clazz, args)
- args
arguments of Elem class constructor
- clazz
Elem class
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
- final def container[F[_]](implicit arg0: Scalan.Cont[F]): Scalan.Cont[F]
- implicit final def containerElem[F[_], A](implicit arg0: Scalan.Cont[F], arg1: Scalan.Elem[A]): Scalan.Elem[F[A]]
-
def
createDefinition[T](optScope: Nullable[Scalan.ThunkScope], s: Scalan.Ref[T], d: Scalan.Def[T]): Scalan.Ref[T]
Create new definition entry in either given Thunk or in the global hash table.
Create new definition entry in either given Thunk or in the global hash table.
- optScope
optional thunk scope to put given definition
- s
symbol refering to
d
- d
definition node to add to the scope of globally
- returns
reference to
d
(which iss
)
- Attributes
- protected
- Definition Classes
- Base
-
val
debugModeSanityChecks: Boolean
Whether to perform extended checks of correctness, expected invariants and data consistency.
Whether to perform extended checks of correctness, expected invariants and data consistency. NOTE: Since it may add substantial overhead, set it to
false
before using in production.- Definition Classes
- Base
-
def
defCount: Int
Returns a number of definitions added to this IR context.
Returns a number of definitions added to this IR context.
- Definition Classes
- Base
-
def
def_unapply[T](e: Scalan.Ref[T]): Nullable[Scalan.Def[T]]
- Definition Classes
- Base
-
val
elemCache: AVHashMap[Class[_], Scalan.ElemCacheEntry]
- Attributes
- protected
- final def element[A](implicit ea: Scalan.Elem[A]): Scalan.Elem[A]
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
def
finalize(): Unit
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( classOf[java.lang.Throwable] )
-
def
findGlobalDefinition[T](d: Scalan.Def[T]): Scalan.Ref[T]
Lookup definition in this IR context's hash table of definitions.
Lookup definition in this IR context's hash table of definitions.
- returns
node reference to an instance stored in hash table, which is equal to
d
and null if there is no definition which is equal tod
- Definition Classes
- Base
-
def
findOrCreateDefinition[T](d: Scalan.Def[T], newSym: ⇒ Scalan.Ref[T]): Scalan.Ref[T]
Lookup
d
in the heap of nodes.Lookup
d
in the heap of nodes. If the lookup is successfull, then its reference is returned. If the node is not found in the heap, then it is added andd.self
reference is returned.- d
node to be added to the head of nodes
- newSym
producer of the reference to be used as the reference to
d
node.- returns
return a reference to
d
node in the heap
- Definition Classes
- Base
-
final
def
freshId: Int
Get next fresh node id
Get next fresh node id
- Definition Classes
- Base
- Annotations
- @inline()
-
final
def
freshSym[T](d: Scalan.Def[T]): Scalan.Ref[T]
Lookup of create reference to the given definition.
Lookup of create reference to the given definition. To lookup
d.nodeId
is used as the index in the_symbolTable
. If Ref is not found in_symbolTable
, then new Ref instance is created and stored in_symbolTable
atd.nodeId
index.- Definition Classes
- Base
- Annotations
- @inline()
- implicit final def funcElement[A, B](implicit ea: Scalan.Elem[A], eb: Scalan.Elem[B]): Scalan.Elem[(A) ⇒ B]
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
getEntityObject(name: String): Nullable[Scalan.EntityObject]
- Definition Classes
- Base
- Annotations
- @inline()
-
def
getOwnerKind(constructor: java.lang.reflect.Constructor[_]): Scalan.OwnerKind
Returns OwnerKind for the given constructor, using its first parameter.
Returns OwnerKind for the given constructor, using its first parameter.
- Attributes
- protected
- Definition Classes
- Base
- final def getSourceValues(dataEnv: Scalan.DataEnv, forWrapper: Boolean, stagedValues: AnyRef*): Seq[AnyRef]
-
final
def
getSym(id: Int): Scalan.Sym
Lookup node reference by its id.
Lookup node reference by its id. This is simple array access by index O(1) operation.
- Definition Classes
- Base
- Annotations
- @inline()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
invokeUnlifted(e: Scalan.Elem[_], mc: Scalan.MethodCall, dataEnv: Scalan.DataEnv): AnyRef
Invoke source type method corresponding to the given MethodCall node.
Invoke source type method corresponding to the given MethodCall node. This method delegated the work to the given element instance.
- e
type descriptor of receiver node
- mc
IR node representing method invocation
- dataEnv
environment where each symbol of 'mc' has associated data value
- returns
data value returned from invoked method
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
implicit
def
liftToRep[A](x: A)(implicit arg0: Scalan.Elem[A]): Scalan.Ref[A]
- Definition Classes
- Base
- Annotations
- @inline()
-
def
logWarn(msg: ⇒ String): Unit
Log warning message to the log.
Log warning message to the log. This is default and simple implementation, which can be overriden.
- Definition Classes
- Base
-
val
nInitialDefs: Int
- Definition Classes
- Base
-
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()
-
def
onReset(): Unit
Called during resetContext() operation after the core context state has been reset.
Called during resetContext() operation after the core context state has been reset. Derived classes can override to define application specific initialization. Don't forget to call super method in the beginning of your overriding method.
- Attributes
- protected
- Definition Classes
- Base
- implicit final def pairElement[A, B](implicit ea: Scalan.Elem[A], eb: Scalan.Elem[B]): Scalan.Elem[(A, B)]
-
def
placeholder[T](implicit eT: Scalan.LElem[T]): Scalan.Ref[T]
- Definition Classes
- Base
- Annotations
- @inline()
-
def
registerEntityObject(name: String, obj: Scalan.EntityObject): Unit
- Attributes
- protected
- Definition Classes
- Base
-
implicit
def
reifyObject[A](obj: Scalan.Def[A]): Scalan.Ref[A]
Implicit injection of new definition (graph node) into universum of nodes with collapsing semantics.
Implicit injection of new definition (graph node) into universum of nodes with collapsing semantics. If there exists node
n
in this IR such thatobj equals n
, then the value ofn.self
is returned, i.e. the new nodeobj
is collapsed with already existing one. This has an effect of Common Subexpression Elimination (CSE) when an expression tree is transformed to the graph and identical subtrees are collapsed. After a reference to the node is obtained, global rewriting rules are examined and the reference may be replaced with a new one.- Definition Classes
- Base
-
def
resetContext(): Unit
- Definition Classes
- Base
-
def
stagingExceptionMessage(message: String, syms: Seq[Scalan.Ref[_]]): String
Prettyprint exception message
Prettyprint exception message
- Attributes
- protected
- Definition Classes
- Base
- implicit final def sumElement[A, B](implicit ea: Scalan.Elem[A], eb: Scalan.Elem[B]): Scalan.Elem[Scalan.|[A, B]]
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toExp[T](d: Scalan.Def[T], newSym: ⇒ Scalan.Ref[T]): Scalan.Ref[T]
Updates the universe of symbols and definitions, then rewrites until fix-point
Updates the universe of symbols and definitions, then rewrites until fix-point
- d
A new graph node to add to the universe
- newSym
A symbol that will be used if d doesn't exist in the universe
- returns
The symbol of the graph which is semantically(up to rewrites) equivalent to d
- implicit final def toLazyElem[A](implicit eA: Scalan.Elem[A]): Scalan.LElem[A]
-
def
toRep[A](x: A)(implicit eA: Scalan.Elem[A]): Scalan.Ref[A]
Lifting of data values to IR nodes.
Lifting of data values to IR nodes.
- Definition Classes
- Base
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
def
transformProductParam(x: Any, t: Scalan.Transformer): Any
Transforms this object into new one by applying
t
to every Ref inside its structure.Transforms this object into new one by applying
t
to every Ref inside its structure. The structure is build out of Seq, Array, Option and Def values. Other structure items remain unchanged and copied to the new instance.- Attributes
- protected
- Definition Classes
- Base
-
final
def
updateSymbolTable[T](s: Scalan.Ref[T], d: Scalan.Def[T]): Scalan.Ref[T]
Create or find symbol (node Ref) which refers to the given node in the table of all created symbols.
Create or find symbol (node Ref) which refers to the given node in the table of all created symbols. The d.nodeId is the index in the _symbolTable which is DBuffer (backed by Array)
- returns
new of existing symbol
- Definition Classes
- Base
-
final
def
valueFromRep[A](x: Scalan.Ref[A]): A
Extract data value from Const node or throw an exception.
Extract data value from Const node or throw an exception.
- Definition Classes
- Base
- Annotations
- @inline()
-
def
variable[T](implicit eT: Scalan.LElem[T]): Scalan.Ref[T]
- Definition Classes
- Base
- Annotations
- @inline()
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
- object Elem extends Serializable
- object EnvRep extends Serializable