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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#nullable disable
using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.Text;
using System;
using System.Runtime.InteropServices;
using System.Text;
namespace OverflowSensitivity
{
public static class Program
{
[DllImport("kernel32.dll")]
private static extern ErrorModes SetErrorMode(ErrorModes uMode);
[Flags]
private enum ErrorModes : uint
{
SYSTEM_DEFAULT = 0x0,
SEM_FAILCRITICALERRORS = 0x0001,
SEM_NOALIGNMENTFAULTEXCEPT = 0x0004,
SEM_NOGPFAULTERRORBOX = 0x0002,
SEM_NOOPENFILEERRORBOX = 0x8000
}
public static int Main(string[] args)
{
// Prevent the "This program has stopped working" messages.
SetErrorMode(ErrorModes.SEM_NOGPFAULTERRORBOX);
if (args.Length != 1)
{
Console.WriteLine("You must pass an integer argument in to this program.");
return -1;
}
Console.WriteLine($"Running in {IntPtr.Size * 8}-bit mode");
if (int.TryParse(args[0], out var i))
{
CompileCode(MakeCode(i));
return 0;
}
else
{
Console.WriteLine($"Could not parse {args[0]}");
return -1;
}
}
private static string MakeCode(int depth)
{
var builder = new StringBuilder();
builder.AppendLine(
@"class C {
C M(string x) { return this; }
void M2() {
new C()
");
for (int i = 0; i < depth; i++)
{
builder.AppendLine(@" .M(""test"")");
}
builder.AppendLine(
@" .M(""test"");
}
}");
return builder.ToString();
}
private static void CompileCode(string stringText)
{
var parseOptions = new CSharpParseOptions(kind: SourceCodeKind.Regular, documentationMode: DocumentationMode.None);
var options = new CSharpCompilationOptions(outputKind: OutputKind.DynamicallyLinkedLibrary, concurrentBuild: false);
var tree = SyntaxFactory.ParseSyntaxTree(SourceText.From(stringText, encoding: null, SourceHashAlgorithm.Sha256), parseOptions);
var reference = MetadataReference.CreateFromFile(@"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\mscorlib.dll");
var comp = CSharpCompilation.Create("assemblyName", new SyntaxTree[] { tree }, references: new MetadataReference[] { reference }, options: options);
var diag = comp.GetDiagnostics();
if (!diag.IsDefaultOrEmpty)
{
throw new Exception(diag[0].ToString());
}
}
}
}
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