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// Copyright (c) AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
public static class DelegateConstruction
{
class InstanceTests
{
public Action CaptureOfThis()
{
return delegate {
CaptureOfThis();
};
}
public Action CaptureOfThisAndParameter(int a)
{
return delegate {
CaptureOfThisAndParameter(a);
};
}
public Action CaptureOfThisAndParameterInForEach(int a)
{
foreach (int item in Enumerable.Empty<int>()) {
if (item > 0) {
return delegate {
CaptureOfThisAndParameter(item + a);
};
}
}
return null;
}
public Action CaptureOfThisAndParameterInForEachWithItemCopy(int a)
{
foreach (int item in Enumerable.Empty<int>()) {
int copyOfItem = item;
if (item > 0) {
return delegate {
CaptureOfThisAndParameter(item + a + copyOfItem);
};
}
}
return null;
}
}
public static void Test(this string a)
{
}
public static Action<string> ExtensionMethodUnbound()
{
return new Action<string>(DelegateConstruction.Test);
}
public static Action ExtensionMethodBound()
{
return new Action("abc".Test);
}
public static Action ExtensionMethodBoundOnNull()
{
return new Action(((string)null).Test);
}
public static object StaticMethod()
{
return new Func<Action>(DelegateConstruction.ExtensionMethodBound);
}
public static object InstanceMethod()
{
return new Func<string>("hello".ToUpper);
}
public static object InstanceMethodOnNull()
{
return new Func<string>(((string)null).ToUpper);
}
public static List<Action<int>> AnonymousMethodStoreWithinLoop()
{
List<Action<int>> list = new List<Action<int>>();
for (int i = 0; i < 10; i++)
{
int counter;
list.Add(delegate(int x)
{
counter = x;
}
);
}
return list;
}
public static List<Action<int>> AnonymousMethodStoreOutsideLoop()
{
List<Action<int>> list = new List<Action<int>>();
int counter;
for (int i = 0; i < 10; i++)
{
list.Add(delegate(int x)
{
counter = x;
}
);
}
return list;
}
public static Action StaticAnonymousMethodNoClosure()
{
return delegate
{
Console.WriteLine();
};
}
public static void NameConflict()
{
// i is captured variable,
// j is parameter in anonymous method
// k is local in anonymous method,
// l is local in main method
// Ensure that the decompiler doesn't introduce name conflicts
List<Action<int>> list = new List<Action<int>>();
for (int l = 0; l < 10; l++) {
int i;
for (i = 0; i < 10; i++) {
list.Add(
delegate (int j) {
for (int k = 0; k < i; k += j) {
Console.WriteLine();
}
});
}
}
}
public static void NameConflict2(int j)
{
List<Action<int>> list = new List<Action<int>>();
for (int k = 0; k < 10; k++) {
list.Add(
delegate(int i) {
Console.WriteLine(i);
});
}
}
public static Action<int> NameConflict3(int i)
{
return delegate(int j) {
for (int k = 0; k < j; k++) {
Console.WriteLine(k);
}
};
}
public static Func<int, Func<int, int>> CurriedAddition(int a)
{
return b => c => a + b + c;
}
public static Func<int, Func<int, Func<int, int>>> CurriedAddition2(int a)
{
return b => c => d => a + b + c + d;
}
}
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