class CostAccumulator extends AnyRef
Implements finite state machine with stack of graph blocks (scopes),
which correspond to lambdas and thunks.
It accepts messages: startScope(), endScope(), add(), reset()
At any time totalCost
is the currently accumulated cost.
- Alphabetic
- By Inheritance
- CostAccumulator
- AnyRef
- Any
- Hide All
- Show All
- Public
- All
Instance Constructors
- new CostAccumulator(initialCost: Int, costLimit: Option[Long])
Type Members
-
class
Loop extends AnyRef
Describes cost information of the loop (map, fold, flatMap etc.) This is used for fail-fast checks in
add
method. -
class
Scope extends IRContext.CostCounter
Represents a single scope during execution of the graph.
Represents a single scope during execution of the graph. The lifetime of each instance is bound to scope execution. When the evaluation enters a new scope (e.g. calling a lambda) a new Scope instance is created and pushed to _scopeStack, then is starts receiving
add
method calls. When the evaluation leaves the scope, the top is popped off the stack.
Value Members
-
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
add(s: IRContext.Sym, op: IRContext.OpCost, dataEnv: IRContext.DataEnv): Int
Called once for each operation of a scope (lambda or thunk).
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @throws( ... ) @native()
-
def
currentScope: Scope
- Annotations
- @inline()
-
def
currentVisited: Set[IRContext.Sym]
- Annotations
- @inline()
- def endLoop(): Unit
-
def
endScope(body: IRContext.Sym): Unit
Called after all operations of a scope are executed (lambda or thunk)
Called after all operations of a scope are executed (lambda or thunk)
- body
symbol of Lambda or ThunkDef node of the scope
-
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] )
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
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
reset(): Unit
Resets this accumulator into initial state to be ready for new graph execution.
Resets this accumulator into initial state to be ready for new graph execution.
- Annotations
- @inline()
- def startLoop(body: IRContext.Sym): Unit
-
def
startScope(): Unit
Called before any operation of a new scope (lambda or thunk)
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
def
totalCost: Int
Returns total accumulated cost
Returns total accumulated cost
- 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
- @throws( ... ) @native()