case class SubstConstants[T <: SType](scriptBytes: Value[SByteArray], positions: Value[SIntArray], newValues: Value[SCollection[T]]) extends Value[SByteArray] with NotReadyValueByteArray with Product with Serializable
Transforms serialized bytes of ErgoTree with segregated constants by replacing constants at given positions with new values. This operation allow to use serialized scripts as pre-defined templates. The typical usage is "check that output box have proposition equal to given script bytes, where minerPk (constants(0)) is replaced with currentMinerPk". Each constant in original scriptBytes have SType serialized before actual data (see ConstantSerializer). During substitution each value from newValues is checked to be an instance of the corresponding type. This means, the constants during substitution cannot change their types.
- scriptBytes
serialized ErgoTree with ConstantSegregationFlag set to 1.
- positions
zero based indexes in ErgoTree.constants array which should be replaced with new values
- newValues
new values to be injected into the corresponding positions in ErgoTree.constants array
- returns
original scriptBytes array where only specified constants are replaced and all other bytes remain exactly the same
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Instance Constructors
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new
SubstConstants(scriptBytes: Value[SByteArray], positions: Value[SIntArray], newValues: Value[SCollection[T]])
- scriptBytes
serialized ErgoTree with ConstantSegregationFlag set to 1.
- positions
zero based indexes in ErgoTree.constants array which should be replaced with new values
- newValues
new values to be injected into the corresponding positions in ErgoTree.constants array
Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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def
==(arg0: Any): Boolean
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final
def
addCost[R](costKind: TypeBasedCost, tpe: SType)(block: () ⇒ R)(implicit E: ErgoTreeEvaluator): R
Add the cost given by the descriptor to the accumulator and associate it with this operation node.
Add the cost given by the descriptor to the accumulator and associate it with this operation node.
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final
def
addCost(costKind: FixedCost)(implicit E: ErgoTreeEvaluator): Unit
Add the cost given by the kind to the accumulator and associate it with this operation node.
Add the cost given by the kind to the accumulator and associate it with this operation node.
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final
def
addSeqCost[R](costKind: PerItemCost, nItems: Int)(block: () ⇒ R)(implicit E: ErgoTreeEvaluator): R
Add the cost of a repeated operation to the accumulator and associate it with this operation.
Add the cost of a repeated operation to the accumulator and associate it with this operation. The number of items (loop iterations) is known in advance (like in Coll.map operation)
- R
result type of the operation
- costKind
cost descriptor of the operation
- nItems
number of operations known in advance (before loop execution)
- block
operation executed under the given cost
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final
def
addSeqCostNoOp(costKind: PerItemCost, nItems: Int)(implicit E: ErgoTreeEvaluator): Unit
Add the cost of a repeated operation to the accumulator and associate it with this operation.
Add the cost of a repeated operation to the accumulator and associate it with this operation. The number of items (loop iterations) is known in advance (like in Coll.map operation)
- costKind
cost descriptor of the operation
- nItems
number of operations known in advance (before loop execution)
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final
def
asInstanceOf[T0]: T0
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clone(): AnyRef
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def
companion: SubstConstants.type
The companion node descriptor with opCode, cost and other metadata.
The companion node descriptor with opCode, cost and other metadata.
- Definition Classes
- SubstConstants → Value
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final
def
eq(arg0: AnyRef): Boolean
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final
def
eval(env: DataEnv)(implicit E: ErgoTreeEvaluator): Any
Defines an evaluation semantics of this tree node (aka Value or expression) in the given data environment.
Defines an evaluation semantics of this tree node (aka Value or expression) in the given data environment. Should be implemented by all the ErgoTree nodes (aka operations). Thus, the ErgoTree interpreter implementation consists of combined implementations of this method. NOTE, this method shouldn't be called directly, instead use
evalTo
method.- env
immutable map, which binds variables (given by ids) to the values
- E
Evaluator which defines evaluation context, cost accumulator, settings etc.
- returns
the data value which is the result of evaluation
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final
def
evalTo[T](env: DataEnv)(implicit E: ErgoTreeEvaluator): T
Evaluates this node to the value of the given expected type.
Evaluates this node to the value of the given expected type. This method should called from all
eval
implementations.- T
expected type of the resulting value
- env
immutable map, which binds variables (given by ids) to the values
- E
Evaluator which defines evaluation context, cost accumulator, settings etc.
- returns
the data value which is the result of evaluation
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final
def
getClass(): Class[_]
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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- val newValues: Value[SCollection[T]]
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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def
opCode: OpCode
Unique id of the node class used in serialization of ErgoTree.
Unique id of the node class used in serialization of ErgoTree.
- Definition Classes
- Value
-
def
opName: String
Name of the operation.
Name of the operation.
- Definition Classes
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val
opType: SFunc
Every value represents an operation and that operation can be associated with a function type, describing functional meaning of the operation, kind of operation signature.
Every value represents an operation and that operation can be associated with a function type, describing functional meaning of the operation, kind of operation signature. Thus, we can obtain global operation identifiers by combining Value.opName with Value.opType, so that if (v1.opName == v2.opName) && (v1.opType == v2.opType) then v1 and v2 are functionally point-wise equivalent. This in particular means that if two _different_ ops have the same opType they _should_ have different opNames. Thus defined op ids are used in a v4.x Cost Model - a table of all existing primitives coupled with performance parameters.
- Definition Classes
- SubstConstants → Value
- val positions: Value[SIntArray]
- val scriptBytes: Value[SByteArray]
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def
sourceContext: Nullable[SourceContext]
- Definition Classes
- Value
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def
sourceContext_=(srcCtx: Nullable[SourceContext]): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
toSigmaProp: SigmaPropValue
Transforms this expression to SigmaProp expression or throws an exception.
Transforms this expression to SigmaProp expression or throws an exception.
- Definition Classes
- Value
-
def
tpe: SCollection[SByte.type]
The type of the value represented by this node.
The type of the value represented by this node. If the value is an operation it is the type of operation result.
- Definition Classes
- NotReadyValueByteArray → Value
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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def
wait(): Unit
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finalize(): Unit
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