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84 lines (72 loc) · 3.32 KB
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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Apache License, Version 2.0, please send an email to
* [email protected]. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Scripting.Utils;
namespace IronPython.Runtime {
/// <summary>
/// This assembly-level attribute specifies which types in the engine represent built-in Python modules.
///
/// Members of a built-in module type should all be static as an instance is never created.
/// </summary>
[AttributeUsage(AttributeTargets.Assembly, AllowMultiple = true, Inherited = false)]
public sealed class PythonModuleAttribute : Attribute {
public enum PlatformFamily {
Windows,
Unix
}
private static readonly PlatformID[] Windows = { PlatformID.Win32NT, PlatformID.Win32S, PlatformID.Win32Windows, PlatformID.WinCE, PlatformID.Xbox };
private static readonly PlatformID[] Unix = { PlatformID.MacOSX, PlatformID.Unix };
/// <summary>
/// Creates a new PythonModuleAttribute that can be used to specify a built-in module that exists
/// within an assembly.
/// </summary>
/// <param name="name">The built-in module name</param>
/// <param name="type">The type that implements the built-in module.</param>
/// <param name="validPlatforms">The valid platform identifiers for this module.</param>
public PythonModuleAttribute(string/*!*/ name, Type/*!*/ type, params PlatformID[] validPlatforms) {
ContractUtils.RequiresNotNull(name, nameof(name));
ContractUtils.RequiresNotNull(type, nameof(type));
Name = name;
Type = type;
ValidPlatforms = validPlatforms;
}
public PythonModuleAttribute(string/*!*/ name, Type/*!*/ type, PlatformFamily validPlatformFamily) {
ContractUtils.RequiresNotNull(name, nameof(name));
ContractUtils.RequiresNotNull(type, nameof(type));
Name = name;
Type = type;
switch (validPlatformFamily) {
case PlatformFamily.Unix:
ValidPlatforms = Unix;
break;
default:
ValidPlatforms = Windows;
break;
}
}
/// <summary>
/// The built-in module name
/// </summary>
public string/*!*/ Name { get; }
/// <summary>
/// The type that implements the built-in module
/// </summary>
public Type/*!*/ Type { get; }
public PlatformID[] ValidPlatforms { get; }
public bool IsPlatformValid => ValidPlatforms == null || ValidPlatforms.Length == 0 || Array.IndexOf(ValidPlatforms, Environment.OSVersion.Platform) >= 0;
}
}