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stellar_base lib xdr keys signer_key.ex
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lib/xdr/keys/signer_key.ex

defmodule StellarBase.XDR.SignerKey do
@moduledoc """
Representation of Stellar `SignerKey` type.
"""
alias StellarBase.XDR.{UInt256, SignerKeyType}
@behaviour XDR.Declaration
@arms [
SIGNER_KEY_TYPE_ED25519: UInt256,
SIGNER_KEY_TYPE_PRE_AUTH_TX: UInt256,
SIGNER_KEY_TYPE_HASH_X: UInt256
]
@type t :: %__MODULE__{signer_key: UInt256.t(), type: SignerKeyType.t()}
defstruct [:signer_key, :type]
@spec new(signer_key :: UInt256.t(), type :: SignerKeyType.t()) :: t()
def new(%UInt256{} = signer_key, %SignerKeyType{} = type),
do: %__MODULE__{signer_key: signer_key, type: type}
@impl true
def encode_xdr(%__MODULE__{signer_key: signer_key, type: type}) do
type
|> XDR.Union.new(@arms, signer_key)
|> XDR.Union.encode_xdr()
end
@impl true
def encode_xdr!(%__MODULE__{signer_key: signer_key, type: type}) do
type
|> XDR.Union.new(@arms, signer_key)
|> XDR.Union.encode_xdr!()
end
@impl true
def decode_xdr(bytes, spec \\ union_spec())
def decode_xdr(bytes, spec) do
case XDR.Union.decode_xdr(bytes, spec) do
{:ok, {{type, key}, rest}} -> {:ok, {new(key, type), rest}}
error -> error
end
end
@impl true
def decode_xdr!(bytes, spec \\ union_spec())
def decode_xdr!(bytes, spec) do
{{type, key}, rest} = XDR.Union.decode_xdr!(bytes, spec)
{new(key, type), rest}
end
@spec union_spec() :: XDR.Union.t()
defp union_spec do
nil
|> SignerKeyType.new()
|> XDR.Union.new(@arms)
end
end