Awesome

UniEnumExtension

Blazingly Fast Enum Library.

Features

Enum's ToString() is known as a virtual method and slow one. [Flags]Enum's ToString() actually allocates StringBuilder instance and is very slow.

Many C# programmers reimplement Enum.ToString() such as Enums.NET. It's a not bad solution but makes your solution depending on those libraries.

This library never forces your solution to depend on it. It just rewrites your dlls so that your solution have much more eddifient and much less allocation Enum's APIs.

License

This library is provided under the GPL-v3 license and a commercial license. You can purchase this software on the Booth website.

Requirement

Install Unity 2018.4 or above. You can download the latest Unity on https://unity3d.com/get-unity/download.

UniEnumExtension Package Install(1)

Download the latest this repository.

Move the downloaded repository folder into the Package folder of your Unity project.

Generally, you can make it using a console (or terminal) application by just a few commands as below:

cd Packages
git clone https://github.com/pCYSl5EDgo/UniEnumExtension.git

UniEnumExtension Package Install(2)

Find Packages/manifest.json in your project and edit it to look like this:

{
  "dependencies": {
    "unienumextension": "https://github.com/pCYSl5EDgo/UniEnumExtension.git",
    ...
  },
}

Performance

<details><summary>Performance Test code - [Flags]Enum</summary>

[Flags]
public enum FastFlagEnum : long
{
    z = 0,
    a = 1,
    b = 2,
    c = 4,
    d = 8,
    e = 0x10,
    f = 0x20,
    g = 0x40,
    h = 0x80,
}

[Flags]
public enum SlowFlagEnum : long
{
    z = 0,
    a = 1,
    b = 2,
    c = 4,
    d = 8,
    e = 0x10,
    f = 0x20,
    g = 0x40,
    h = 0x80,
}

public sealed class FlagsTestScript : MonoBehaviour
{
    public Text text;
    public Button button;
    private Stopwatch watch;
    void Start()
    {
        watch = new Stopwatch();
        button.onClick.AddListener(Calc);
    }

    private void Calc()
    {
        const long width = 256L;
        string a;
        watch.Restart();
        for (var i = 0; i < 100000; i++)
        {
            for (var j = 0L; j < width; j++)
            {
                a = ((SlowFlagEnum)j).ToString();
            }
        }
        watch.Stop();
        text.text = "SlowFlagEnum (0-" + width + ") : " + watch.ElapsedMilliseconds;
        watch.Restart();
        for (var i = 0; i < 100000; i++)
        {
            for (var j = 0L; j < width; j++)
            {
                a = ((FastFlagEnum)j).ToString();
            }
        }
        watch.Stop();
        text.text += "\nFastFlagEnum (0-" + width + ") : " + watch.ElapsedMilliseconds;
    }
}

</details>

Time to call ToString() of [Flags]Enum 25.6 million times

Environment	Normal Enum (25600000times)	UniEnumExtension Enum (25600000times)
Editor	54624ms	374ms
Windows 64bit Mono .net standard 2.0 Release Build	26146ms	52ms
Windows 64bit IL2CPP .net standard 2.0 Release Build	18735ms	83ms

<details><summary>Performance Test code - Continuous Enum starting from 0</summary>

public enum FastEnum : long
{
    a0 = 0x00
    , a1 = 0x10
    , a2 = 0x20
    , a3 = 0x30
    , a4 = 0x40
    , a5 = 0x50
    , a6 = 0x60
    , a7 = 0x70
    , a8 = 0x80
    , a9 = 0x90
    , aa = 0xa0
    , ab = 0xb0
    , ac = 0xc0
    , ad = 0xd0
    , ae = 0xe0
    , af = 0xf0,
    a01 = 0x01,
    a11 = 0x11,
    a21 = 0x21,
    a31 = 0x31,
    a41 = 0x41,
    a51 = 0x51,
    a61 = 0x61,
    a71 = 0x71,
    a81 = 0x81,
    a91 = 0x91,
    aa1 = 0xa1,
    ab1 = 0xb1,
    ac1 = 0xc1,
    ad1 = 0xd1,
    ae1 = 0xe1,
    af1 = 0xf1,
    a02 = 0x02,
    a12 = 0x12,
    a22 = 0x22,
    a32 = 0x32,
    a42 = 0x42,
    a52 = 0x52,
    a62 = 0x62,
    a72 = 0x72,
    a82 = 0x82,
    a92 = 0x92,
    aa2 = 0xa2,
    ab2 = 0xb2,
    ac2 = 0xc2,
    ad2 = 0xd2,
    ae2 = 0xe2,
    af2 = 0xf2
    , a03 = 0x03
    , a13 = 0x13
    , a23 = 0x23
    , a33 = 0x33
    , a43 = 0x43
    , a53 = 0x53
    , a63 = 0x63
    , a73 = 0x73
    , a83 = 0x83
    , a93 = 0x93
    , aa3 = 0xa3
    , ab3 = 0xb3
    , ac3 = 0xc3
    , ad3 = 0xd3
    , ae3 = 0xe3
    , af3 = 0xf3
    , a04 = 0x04
    , a14 = 0x14
    , a24 = 0x24
    , a34 = 0x34
    , a44 = 0x44
    , a54 = 0x54
    , a64 = 0x64
    , a74 = 0x74
    , a84 = 0x84
    , a94 = 0x94
    , aa4 = 0xa4
    , ab4 = 0xb4
    , ac4 = 0xc4
    , ad4 = 0xd4
    , ae4 = 0xe4
    , af4 = 0xf4
    , a05   = 0x05
    , a15   = 0x15
    , a25   = 0x25
    , a35   = 0x35
    , a45   = 0x45
    , a55   = 0x55
    , a65   = 0x65
    , a75   = 0x75
    , a85   = 0x85
    , a95   = 0x95
    , aa5   = 0xa5
    , ab5   = 0xb5
    , ac5   = 0xc5
    , ad5   = 0xd5
    , ae5   = 0xe5
    , af5   = 0xf5
    , a06   = 0x06
    , a16   = 0x16
    , a26   = 0x26
    , a36   = 0x36
    , a46   = 0x46
    , a56   = 0x56
    , a66   = 0x66
    , a76   = 0x76
    , a86   = 0x86
    , a96   = 0x96
    , aa6   = 0xa6
    , ab6   = 0xb6
    , ac6   = 0xc6
    , ad6   = 0xd6
    , ae6   = 0xe6
    , af6   = 0xf6
    , a07   = 0x07
    , a17   = 0x17
    , a27   = 0x27
    , a37   = 0x37
    , a47   = 0x47
    , a57   = 0x57
    , a67   = 0x67
    , a77   = 0x77
    , a87   = 0x87
    , a97   = 0x97
    , aa7   = 0xa7
    , ab7   = 0xb7
    , ac7   = 0xc7
    , ad7   = 0xd7
    , ae7   = 0xe7
    , af7   = 0xf7
    , a08   = 0x08
    , a18   = 0x18
    , a28   = 0x28
    , a38   = 0x38
    , a48   = 0x48
    , a58   = 0x58
    , a68   = 0x68
    , a78   = 0x78
    , a88   = 0x88
    , a98   = 0x98
    , aa8   = 0xa8
    , ab8   = 0xb8
    , ac8   = 0xc8
    , ad8   = 0xd8
    , ae8   = 0xe8
    , af8   = 0xf8
    , a09   = 0x09
    , a19   = 0x19
    , a29   = 0x29
    , a39   = 0x39
    , a49   = 0x49
    , a59   = 0x59
    , a69   = 0x69
    , a79   = 0x79
    , a89   = 0x89
    , a99   = 0x99
    , aa9   = 0xa9
    , ab9   = 0xb9
    , ac9   = 0xc9
    , ad9   = 0xd9
    , ae9   = 0xe9
    , af9   = 0xf9
    , a0a   = 0x0a
    , a1a   = 0x1a
    , a2a   = 0x2a
    , a3a   = 0x3a
    , a4a   = 0x4a
    , a5a   = 0x5a
    , a6a   = 0x6a
    , a7a   = 0x7a
    , a8a   = 0x8a
    , a9a   = 0x9a
    , aaa   = 0xaa
    , aba   = 0xba
    , aca   = 0xca
    , ada   = 0xda
    , aea   = 0xea
    , afa   = 0xfa
    , a0b   = 0x0b
    , a1b   = 0x1b
    , a2b   = 0x2b
    , a3b   = 0x3b
    , a4b   = 0x4b
    , a5b   = 0x5b
    , a6b   = 0x6b
    , a7b   = 0x7b
    , a8b   = 0x8b
    , a9b   = 0x9b
    , aab   = 0xab
    , abb   = 0xbb
    , acb   = 0xcb
    , adb   = 0xdb
    , aeb   = 0xeb
    , afb   = 0xfb
    , a0c   = 0x0c
    , a1c   = 0x1c
    , a2c   = 0x2c
    , a3c   = 0x3c
    , a4c   = 0x4c
    , a5c   = 0x5c
    , a6c   = 0x6c
    , a7c   = 0x7c
    , a8c   = 0x8c
    , a9c   = 0x9c
    , aac   = 0xac
    , abc   = 0xbc
    , acc   = 0xcc
    , adc   = 0xdc
    , aec   = 0xec
    , afc   = 0xfc
    , a0d   = 0x0d
    , a1d   = 0x1d
    , a2d   = 0x2d
    , a3d   = 0x3d
    , a4d   = 0x4d
    , a5d   = 0x5d
    , a6d   = 0x6d
    , a7d   = 0x7d
    , a8d   = 0x8d
    , a9d   = 0x9d
    , aad   = 0xad
    , abd   = 0xbd
    , acd   = 0xcd
    , add   = 0xdd
    , aed   = 0xed
    , afd   = 0xfd
    , a0e   = 0x0e
    , a1e   = 0x1e
    , a2e   = 0x2e
    , a3e   = 0x3e
    , a4e   = 0x4e
    , a5e   = 0x5e
    , a6e   = 0x6e
    , a7e   = 0x7e
    , a8e   = 0x8e
    , a9e   = 0x9e
    , aae   = 0xae
    , abe   = 0xbe
    , ace   = 0xce
    , ade   = 0xde
    , aee   = 0xee
    , afe   = 0xfe
    , a0f   = 0x0f
    , a1f   = 0x1f
    , a2f   = 0x2f
    , a3f   = 0x3f
    , a4f   = 0x4f
    , a5f   = 0x5f
    , a6f   = 0x6f
    , a7f   = 0x7f
    , a8f   = 0x8f
    , a9f   = 0x9f
    , aaf   = 0xaf
    , abf   = 0xbf
    , acf   = 0xcf
    , adf   = 0xdf
    , aef   = 0xef
    , aff   = 0xff
}

public enum SlowEnum : long
{
    a0 = 0x00
    , a1 = 0x10
    , a2 = 0x20
    , a3 = 0x30
    , a4 = 0x40
    , a5 = 0x50
    , a6 = 0x60
    , a7 = 0x70
    , a8 = 0x80
    , a9 = 0x90
    , aa = 0xa0
    , ab = 0xb0
    , ac = 0xc0
    , ad = 0xd0
    , ae = 0xe0
    , af = 0xf0,
    a01 = 0x01,
    a11 = 0x11,
    a21 = 0x21,
    a31 = 0x31,
    a41 = 0x41,
    a51 = 0x51,
    a61 = 0x61,
    a71 = 0x71,
    a81 = 0x81,
    a91 = 0x91,
    aa1 = 0xa1,
    ab1 = 0xb1,
    ac1 = 0xc1,
    ad1 = 0xd1,
    ae1 = 0xe1,
    af1 = 0xf1,
    a02 = 0x02,
    a12 = 0x12,
    a22 = 0x22,
    a32 = 0x32,
    a42 = 0x42,
    a52 = 0x52,
    a62 = 0x62,
    a72 = 0x72,
    a82 = 0x82,
    a92 = 0x92,
    aa2 = 0xa2,
    ab2 = 0xb2,
    ac2 = 0xc2,
    ad2 = 0xd2,
    ae2 = 0xe2,
    af2 = 0xf2
    , a03 = 0x03
    , a13 = 0x13
    , a23 = 0x23
    , a33 = 0x33
    , a43 = 0x43
    , a53 = 0x53
    , a63 = 0x63
    , a73 = 0x73
    , a83 = 0x83
    , a93 = 0x93
    , aa3 = 0xa3
    , ab3 = 0xb3
    , ac3 = 0xc3
    , ad3 = 0xd3
    , ae3 = 0xe3
    , af3 = 0xf3
    , a04 = 0x04
    , a14 = 0x14
    , a24 = 0x24
    , a34 = 0x34
    , a44 = 0x44
    , a54 = 0x54
    , a64 = 0x64
    , a74 = 0x74
    , a84 = 0x84
    , a94 = 0x94
    , aa4 = 0xa4
    , ab4 = 0xb4
    , ac4 = 0xc4
    , ad4 = 0xd4
    , ae4 = 0xe4
    , af4 = 0xf4
    , a05   = 0x05
    , a15   = 0x15
    , a25   = 0x25
    , a35   = 0x35
    , a45   = 0x45
    , a55   = 0x55
    , a65   = 0x65
    , a75   = 0x75
    , a85   = 0x85
    , a95   = 0x95
    , aa5   = 0xa5
    , ab5   = 0xb5
    , ac5   = 0xc5
    , ad5   = 0xd5
    , ae5   = 0xe5
    , af5   = 0xf5
    , a06   = 0x06
    , a16   = 0x16
    , a26   = 0x26
    , a36   = 0x36
    , a46   = 0x46
    , a56   = 0x56
    , a66   = 0x66
    , a76   = 0x76
    , a86   = 0x86
    , a96   = 0x96
    , aa6   = 0xa6
    , ab6   = 0xb6
    , ac6   = 0xc6
    , ad6   = 0xd6
    , ae6   = 0xe6
    , af6   = 0xf6
    , a07   = 0x07
    , a17   = 0x17
    , a27   = 0x27
    , a37   = 0x37
    , a47   = 0x47
    , a57   = 0x57
    , a67   = 0x67
    , a77   = 0x77
    , a87   = 0x87
    , a97   = 0x97
    , aa7   = 0xa7
    , ab7   = 0xb7
    , ac7   = 0xc7
    , ad7   = 0xd7
    , ae7   = 0xe7
    , af7   = 0xf7
    , a08   = 0x08
    , a18   = 0x18
    , a28   = 0x28
    , a38   = 0x38
    , a48   = 0x48
    , a58   = 0x58
    , a68   = 0x68
    , a78   = 0x78
    , a88   = 0x88
    , a98   = 0x98
    , aa8   = 0xa8
    , ab8   = 0xb8
    , ac8   = 0xc8
    , ad8   = 0xd8
    , ae8   = 0xe8
    , af8   = 0xf8
    , a09   = 0x09
    , a19   = 0x19
    , a29   = 0x29
    , a39   = 0x39
    , a49   = 0x49
    , a59   = 0x59
    , a69   = 0x69
    , a79   = 0x79
    , a89   = 0x89
    , a99   = 0x99
    , aa9   = 0xa9
    , ab9   = 0xb9
    , ac9   = 0xc9
    , ad9   = 0xd9
    , ae9   = 0xe9
    , af9   = 0xf9
    , a0a   = 0x0a
    , a1a   = 0x1a
    , a2a   = 0x2a
    , a3a   = 0x3a
    , a4a   = 0x4a
    , a5a   = 0x5a
    , a6a   = 0x6a
    , a7a   = 0x7a
    , a8a   = 0x8a
    , a9a   = 0x9a
    , aaa   = 0xaa
    , aba   = 0xba
    , aca   = 0xca
    , ada   = 0xda
    , aea   = 0xea
    , afa   = 0xfa
    , a0b   = 0x0b
    , a1b   = 0x1b
    , a2b   = 0x2b
    , a3b   = 0x3b
    , a4b   = 0x4b
    , a5b   = 0x5b
    , a6b   = 0x6b
    , a7b   = 0x7b
    , a8b   = 0x8b
    , a9b   = 0x9b
    , aab   = 0xab
    , abb   = 0xbb
    , acb   = 0xcb
    , adb   = 0xdb
    , aeb   = 0xeb
    , afb   = 0xfb
    , a0c   = 0x0c
    , a1c   = 0x1c
    , a2c   = 0x2c
    , a3c   = 0x3c
    , a4c   = 0x4c
    , a5c   = 0x5c
    , a6c   = 0x6c
    , a7c   = 0x7c
    , a8c   = 0x8c
    , a9c   = 0x9c
    , aac   = 0xac
    , abc   = 0xbc
    , acc   = 0xcc
    , adc   = 0xdc
    , aec   = 0xec
    , afc   = 0xfc
    , a0d   = 0x0d
    , a1d   = 0x1d
    , a2d   = 0x2d
    , a3d   = 0x3d
    , a4d   = 0x4d
    , a5d   = 0x5d
    , a6d   = 0x6d
    , a7d   = 0x7d
    , a8d   = 0x8d
    , a9d   = 0x9d
    , aad   = 0xad
    , abd   = 0xbd
    , acd   = 0xcd
    , add   = 0xdd
    , aed   = 0xed
    , afd   = 0xfd
    , a0e   = 0x0e
    , a1e   = 0x1e
    , a2e   = 0x2e
    , a3e   = 0x3e
    , a4e   = 0x4e
    , a5e   = 0x5e
    , a6e   = 0x6e
    , a7e   = 0x7e
    , a8e   = 0x8e
    , a9e   = 0x9e
    , aae   = 0xae
    , abe   = 0xbe
    , ace   = 0xce
    , ade   = 0xde
    , aee   = 0xee
    , afe   = 0xfe
    , a0f   = 0x0f
    , a1f   = 0x1f
    , a2f   = 0x2f
    , a3f   = 0x3f
    , a4f   = 0x4f
    , a5f   = 0x5f
    , a6f   = 0x6f
    , a7f   = 0x7f
    , a8f   = 0x8f
    , a9f   = 0x9f
    , aaf   = 0xaf
    , abf   = 0xbf
    , acf   = 0xcf
    , adf   = 0xdf
    , aef   = 0xef
    , aff   = 0xff
}

public sealed class NoFlagTestScript : MonoBehaviour
{
    public Text text;
    public Button button;
    private Stopwatch watch;
    void Start()
    {
        watch = new Stopwatch();
        button.onClick.AddListener(Calc);
    }

    private void Calc()
    {
        const long width = 256L;
        string a;
        watch.Restart();
        for (var i = 0; i < 100000; i++)
        {
            for (var j = 0L; j < width; j++)
            {
                a = ((SlowEnum)j).ToString();
            }
        }
        watch.Stop();
        text.text = "SlowEnum (0-" + width + ") : " + watch.ElapsedMilliseconds;
        watch.Restart();
        for (var i = 0; i < 100000; i++)
        {
            for (var j = 0L; j < width; j++)
            {
                a = ((FastEnum)j).ToString();
            }
        }
        watch.Stop();
        text.text += "\nFastEnum (0-" + width + ") : " + watch.ElapsedMilliseconds;
    }
}

</details>

Time to call ToString() of Continuous zero-start Enum 25.6 million times

Environment	Normal Enum (25600000times)	UniEnumExtension Enum (25600000times)
Editor	31791ms	394ms
Windows 64bit Mono .net standard 2.0 Release Build	16264ms	46ms
Windows 64bit IL2CPP .net standard 2.0 Release Build	17011ms	56ms

#Functions

foreach statement can be used in the Burst-Compiled Job(s).
Enum.ToString is faster than old one.
Array Enum.GetValues(typeof(NotAbstractEnumType)); is converted as NotAbstractEnumType[] NotAbstractEnumType.GetValues();
bool boxed NotAbstractEnumType instance.HasFlag(Enum boxedValue); is converted as bool NotAbstractEnumType instance.HasFlag(NotAbstractEnumType value);
Two Boxing and the reflection are banished.