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Add IsSingleType to Descriptors

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IsSingleType will return whether the descriptor will give one or multiple scriptPubKeys
This commit is contained in:
Andrew Chow 2019-07-10 17:21:19 -04:00
parent 953feb3d27
commit d1ec3e4f19
2 changed files with 12 additions and 0 deletions
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9
src/script/descriptor.cpp
View file

@ -575,6 +575,7 @@ public:
default: return nullopt;
}
}
bool IsSingleType() const final { return true; }
};
/** A parsed raw(H) descriptor. */
@ -602,6 +603,7 @@ public:
default: return nullopt;
}
}
bool IsSingleType() const final { return true; }
};
/** A parsed pk(P) descriptor. */
@ -611,6 +613,7 @@ protected:
std::vector<CScript> MakeScripts(const std::vector<CPubKey>& keys, const CScript*, FlatSigningProvider&) const override { return Vector(GetScriptForRawPubKey(keys[0])); }
public:
PKDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), {}, "pk") {}
bool IsSingleType() const final { return true; }
};
/** A parsed pkh(P) descriptor. */
@ -626,6 +629,7 @@ protected:
public:
PKHDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), {}, "pkh") {}
Optional<OutputType> GetOutputType() const override { return OutputType::LEGACY; }
bool IsSingleType() const final { return true; }
};
/** A parsed wpkh(P) descriptor. */
@ -641,6 +645,7 @@ protected:
public:
WPKHDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), {}, "wpkh") {}
Optional<OutputType> GetOutputType() const override { return OutputType::BECH32; }
bool IsSingleType() const final { return true; }
};
/** A parsed combo(P) descriptor. */
@ -664,6 +669,7 @@ protected:
}
public:
ComboDescriptor(std::unique_ptr<PubkeyProvider> prov) : DescriptorImpl(Vector(std::move(prov)), {}, "combo") {}
bool IsSingleType() const final { return false; }
};
/** A parsed multi(...) or sortedmulti(...) descriptor */
@ -683,6 +689,7 @@ protected:
}
public:
MultisigDescriptor(int threshold, std::vector<std::unique_ptr<PubkeyProvider>> providers, bool sorted = false) : DescriptorImpl(std::move(providers), {}, sorted ? "sortedmulti" : "multi"), m_threshold(threshold), m_sorted(sorted) {}
bool IsSingleType() const final { return true; }
};
/** A parsed sh(...) descriptor. */
@ -699,6 +706,7 @@ public:
if (m_subdescriptor_arg->GetOutputType() == OutputType::BECH32) return OutputType::P2SH_SEGWIT;
return OutputType::LEGACY;
}
bool IsSingleType() const final { return true; }
};
/** A parsed wsh(...) descriptor. */
@ -709,6 +717,7 @@ protected:
public:
WSHDescriptor(std::unique_ptr<DescriptorImpl> desc) : DescriptorImpl({}, std::move(desc), "wsh") {}
Optional<OutputType> GetOutputType() const override { return OutputType::BECH32; }
bool IsSingleType() const final { return true; }
};
////////////////////////////////////////////////////////////////////////////

3
src/script/descriptor.h
View file

@ -87,6 +87,9 @@ struct Descriptor {
/** Convert the descriptor back to a string, undoing parsing. */
virtual std::string ToString() const = 0;
/** Whether this descriptor will return one scriptPubKey or multiple (aka is or is not combo) */
virtual bool IsSingleType() const = 0;
/** Convert the descriptor to a private string. This fails if the provided provider does not have the relevant private keys. */
virtual bool ToPrivateString(const SigningProvider& provider, std::string& out) const = 0;