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// Copyright (C) 2015-2024 The Neo Project. | ||
// | ||
// ExtendedType.cs file belongs to the neo project and is free | ||
// software distributed under the MIT software license, see the | ||
// accompanying file LICENSE in the main directory of the | ||
// repository or http://www.opensource.org/licenses/mit-license.php | ||
// for more details. | ||
// | ||
// Redistribution and use in source and binary forms with or without | ||
// modifications are permitted. | ||
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using Neo.Json; | ||
using Neo.VM; | ||
using Neo.VM.Types; | ||
using System; | ||
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namespace Neo.SmartContract.Manifest | ||
{ | ||
public class ExtendedType : IInteroperable | ||
{ | ||
/// <summary> | ||
/// The type of the parameter. It can be any value of <see cref="ContractParameterType"/> except <see cref="ContractParameterType.Void"/>. | ||
/// </summary> | ||
public ContractParameterType Type { get; set; } | ||
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/// <summary> | ||
/// NamedType is used to refer to one of the types defined in the namedtypes object of Contract, | ||
/// so namedtypes MUST contain a field named name. | ||
/// This field is only used for structures (ordered set of named values of diffent types), | ||
/// if used other fields MUST NOT be set, except for the type which MUST be an Array. | ||
/// Value string MUST start with a letter and can contain alphanumeric characters and dots. | ||
/// It MUST NOT be longer than 64 characters. | ||
/// </summary> | ||
public string NamedType { get; set; } | ||
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void IInteroperable.FromStackItem(StackItem stackItem) | ||
{ | ||
FromStackItem((VM.Types.Array)stackItem, 0); | ||
} | ||
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internal void FromStackItem(VM.Types.Array @struct, int startIndex) | ||
{ | ||
Type = (ContractParameterType)(byte)@struct[startIndex].GetInteger(); | ||
NamedType = @struct[startIndex + 1].GetString(); | ||
} | ||
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StackItem IInteroperable.ToStackItem(ReferenceCounter referenceCounter) | ||
{ | ||
Struct @struct = new Struct(referenceCounter); | ||
ToStackItem(referenceCounter, @struct); | ||
return @struct; | ||
} | ||
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internal StackItem ToStackItem(ReferenceCounter referenceCounter, Struct @struct) | ||
{ | ||
@struct.Add((byte)Type); | ||
@struct.Add(NamedType); | ||
return @struct; | ||
} | ||
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/// <summary> | ||
/// Converts the type from a JSON object. | ||
/// </summary> | ||
/// <param name="json">The method represented by a JSON object.</param> | ||
/// <returns>The extended type.</returns> | ||
public static ExtendedType FromJson(JObject json) | ||
{ | ||
ExtendedType type = new() | ||
{ | ||
Type = Enum.Parse<ContractParameterType>(json["type"].GetString()), | ||
NamedType = json["namedtype"].GetString(), | ||
}; | ||
if (!Enum.IsDefined(typeof(ContractParameterType), type.Type)) throw new FormatException(); | ||
return type; | ||
} | ||
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/// <summary> | ||
/// Converts the parameter to a JSON object. | ||
/// </summary> | ||
/// <returns>The parameter represented by a JSON object.</returns> | ||
public virtual JObject ToJson() | ||
{ | ||
var json = new JObject(); | ||
json["type"] = Type.ToString(); | ||
json["namedtype"] = NamedType; | ||
return json; | ||
} | ||
} | ||
} |