ClearScript/ClearScript/ExtensionMethods.cs at master · 123LHP/ClearScript · GitHub

History

71 lines (59 loc) · 2.35 KB

Raw

// Licensed under the MIT license.

using System;

using System.Collections.Generic;

using System.Diagnostics;

using System.Linq;

using System.Reflection;

using System.Runtime.CompilerServices;

using Microsoft.ClearScript.Util;

namespace Microsoft.ClearScript

{

internal sealed class ExtensionMethodTable

{

private readonly Dictionary<Type, MethodInfo[]> table = new Dictionary<Type, MethodInfo[]>();

private ExtensionMethodSummary summary = new ExtensionMethodSummary();

public ExtensionMethodSummary Summary

{

get { return summary; }

}

public bool ProcessType(Type type, Type accessContext, ScriptAccess defaultAccess)

{

Debug.Assert(type.IsSpecific());

if (!table.ContainsKey(type) && type.HasExtensionMethods())

{

const BindingFlags bindFlags = BindingFlags.Public | BindingFlags.Static;

table[type] = type.GetMethods(bindFlags).Where(method => IsScriptableExtensionMethod(method, accessContext, defaultAccess)).ToArray();

RebuildSummary();

return true;

}

return false;

}

public void RebuildSummary()

{

summary = new ExtensionMethodSummary(table);

}

private static bool IsScriptableExtensionMethod(MethodInfo method, Type accessContext, ScriptAccess defaultAccess)

{

return method.IsScriptable(accessContext, defaultAccess) && method.IsDefined(typeof(ExtensionAttribute), false);

}

internal sealed class ExtensionMethodSummary

{

public ExtensionMethodSummary()

{

Types = ArrayHelpers.GetEmptyArray<Type>();

Methods = ArrayHelpers.GetEmptyArray<MethodInfo>();

MethodNames = ArrayHelpers.GetEmptyArray<string>();

}

public ExtensionMethodSummary(Dictionary<Type, MethodInfo[]> table)

{

Types = table.Keys.ToArray();

Methods = table.SelectMany(pair => pair.Value).ToArray();

MethodNames = Methods.Select(method => method.GetScriptName()).ToArray();

}

public Type[] Types { get; private set; }

public MethodInfo[] Methods { get; private set; }

public string[] MethodNames { get; private set; }

}

ClearScript/ClearScript/ExtensionMethods.cs at master · 123LHP/ClearScript · GitHub

Expand file tree

Breadcrumbs

ExtensionMethods.cs

Latest commit

History

Breadcrumbs

ExtensionMethods.cs

File metadata and controls