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core: Fix type annotation on TapscriptControlBlock.apply() (#5951)

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* core: Fix type annotation on TapscriptControlBlock.apply()

* Fix bugs in TapscriptControlBlock helper methods
This commit is contained in:
Chris Stewart 2025-03-06 15:20:10 -06:00 • committed by GitHub
parent ec65fe615c
commit aeca55f5ef
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2 changed files with 24 additions and 6 deletions
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10
core-test/src/test/scala/org/bitcoins/core/protocol/script/TaprootWitnessTest.scala
View file

@ -24,7 +24,7 @@ class TaprootWitnessTest extends BitcoinSUnitTest {
"3052c652d53f6ecb8a55586614e8950cde9ab6fe8e22802e93b3b9139112250b80ebc589aba231af535bb20f7eeec2e412f698c17f3fdc0a2" +
"e20924a5e38b21a628a9e3b2a61e35958e60c7f5087c"
val controlBlock = ControlBlock.fromHex(controlBlockHex)
val controlBlock = TapscriptControlBlock.fromHex(controlBlockHex)
val merkleRootHex =
"c5c62d7fc595ba5fbe61602eb1a29e2e4763408fe1e2b161beb7cb3c71ebcad9"
@ -138,4 +138,12 @@ class TaprootWitnessTest extends BitcoinSUnitTest {
val stack = stackHex.map(ByteVector.fromValidHex(_))
assert(!TaprootKeyPath.isValid(stack))
}
it must "have a correct constructor" in {
val x = TapscriptControlBlock.apply(controlBlock.bytes.head,
controlBlock.p,
leafHashes = controlBlock.hashes)
assert(x.bytes.toHex == controlBlock.bytes.toHex)
assert(x == controlBlock)
}
}

20
core/src/main/scala/org/bitcoins/core/protocol/script/ControlBlock.scala
View file

@ -37,7 +37,7 @@ sealed abstract class ControlBlock extends NetworkElement {
case class TapscriptControlBlock(bytes: ByteVector) extends ControlBlock {
require(TapscriptControlBlock.isValid(bytes),
s"Invalid leaf version for tapscript control block, got=$bytes")
s"Invalid tapscript control block, got=$bytes")
}
/** A control block that does not have a leaf version defined as per BIP342 This
@ -86,11 +86,21 @@ object TapscriptControlBlock extends Factory[TapscriptControlBlock] {
new TapscriptControlBlock(bytes)
}
def apply(
def fromLeaves(
leafVersion: Byte,
internalKey: XOnlyPubKey,
leafHashes: Vector[TapLeaf]): ControlBlock = {
val bytes = internalKey.bytes ++ ByteVector.concat(leafHashes.map(_.bytes))
ControlBlock(bytes)
leafs: Vector[TapLeaf]): TapscriptControlBlock = {
TapscriptControlBlock(leafVersion, internalKey, leafs.map(_.sha256))
}
def apply(
leafVersion: Byte,
internalKey: XOnlyPubKey,
leafHashes: Vector[Sha256Digest]): TapscriptControlBlock = {
val bytes =
(leafVersion +: internalKey.bytes) ++ ByteVector
.concat(leafHashes.map(_.bytes))
TapscriptControlBlock(bytes)
}
}