ClearScript/ClearScriptTest/DynamicTestObject.cs at master · ClearFoundry/ClearScript · GitHub

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// Licensed under the MIT license.

using System;

using System.Collections.Generic;

using System.Diagnostics.CodeAnalysis;

using System.Dynamic;

using System.Linq;

namespace Microsoft.ClearScript.Test

{

[SuppressMessage("ReSharper", "StringLiteralTypo", Justification = "Typos in test code are acceptable.")]

public sealed class DynamicTestObject : DynamicObject

{

private readonly Dictionary<string, object> memberMap = new();

private readonly Dictionary<string, object> indexMap = new();

public int SomeField = 12345;

public string SomeProperty => "Bogus";

public double SomeMethod()

{

return Math.PI;

}

public string SomeMethod(string _, params object[] args)

{

return string.Join("+", args);

}

public bool DisableInvocation { get; set; }

public bool DisableDynamicMembers { get; set; }

public override bool TryCreateInstance(CreateInstanceBinder binder, object[] args, out object result)

{

if (args.Length > 0)

{

result = string.Join(" ", args);

return true;

}

return base.TryCreateInstance(binder, args, out result);

}

public override bool TryInvoke(InvokeBinder binder, object[] args, out object result)

{

if (!DisableInvocation && (args.Length > 0))

{

result = string.Join(",", args);

return true;

}

return base.TryInvoke(binder, args, out result);

}

public override bool TryInvokeMember(InvokeMemberBinder binder, object[] args, out object result)

{

if ((binder.Name == "DynamicMethod") && (args.Length > 0))

{

result = string.Join("-", args);

return true;

}

if ((binder.Name == "SomeField") && (args.Length > 0))

{

result = string.Join(".", args);

return true;

}

if ((binder.Name == "SomeProperty") && (args.Length > 0))

{

result = string.Join(":", args);

return true;

}

if ((binder.Name == "SomeMethod") && (args.Length > 0))

{

result = string.Join(";", args);

return true;

}

return base.TryInvokeMember(binder, args, out result);

}

public override bool TryGetMember(GetMemberBinder binder, out object result)

{

if (!DisableDynamicMembers && !binder.Name.StartsWith("Z", StringComparison.Ordinal))

{

return memberMap.TryGetValue(binder.Name, out result);

}

return base.TryGetMember(binder, out result);

}

public override bool TrySetMember(SetMemberBinder binder, object value)

{

if (!DisableDynamicMembers && !binder.Name.StartsWith("Z", StringComparison.Ordinal))

{

memberMap[binder.Name] = value;

return true;

}

return base.TrySetMember(binder, value);

}

public override bool TryDeleteMember(DeleteMemberBinder binder)

{

if (!DisableDynamicMembers && !binder.Name.StartsWith("Z", StringComparison.Ordinal))

{

return memberMap.Remove(binder.Name);

}

return base.TryDeleteMember(binder);

}

public override bool TryGetIndex(GetIndexBinder binder, object[] indexes, out object result)

{

if (indexes.All(index => (index is int) || ((index is string stringIndex) && !stringIndex.StartsWith("Z", StringComparison.Ordinal))))

{

return indexMap.TryGetValue(string.Join(":", indexes), out result);

}

return base.TryGetIndex(binder, indexes, out result);

}

public override bool TrySetIndex(SetIndexBinder binder, object[] indexes, object value)

{

if (indexes.All(index => (index is int) || ((index is string stringIndex) && !stringIndex.StartsWith("Z", StringComparison.Ordinal))))

{

indexMap[string.Join(":", indexes)] = value;

return true;

}

return base.TrySetIndex(binder, indexes, value);

}

public override bool TryDeleteIndex(DeleteIndexBinder binder, object[] indexes)

{

if (indexes.All(index => (index is int) || ((index is string stringIndex) && !stringIndex.StartsWith("Z", StringComparison.Ordinal))))

{

return indexMap.Remove(string.Join(":", indexes));

}

return base.TryDeleteIndex(binder, indexes);

}

public override bool TryConvert(ConvertBinder binder, out object result)

{

if (binder.ReturnType == typeof(int))

{

result = 98765;

return true;

}

if (binder.ReturnType == typeof(string))

{

result = "Booyakasha!";

return true;

}

return base.TryConvert(binder, out result);

}

public override IEnumerable<string> GetDynamicMemberNames()

{

foreach (var name in memberMap.Keys)

{

yield return name;

}

yield return "DynamicMethod";

yield return "SomeField";

yield return "SomeProperty";

yield return "SomeMethod";

}

public override string ToString()

{

return "Super Bass-O-Matic '76";

}

ClearScript/ClearScriptTest/DynamicTestObject.cs at master · ClearFoundry/ClearScript · GitHub

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