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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.CodeDom.Compiler;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using ICSharpCode.Decompiler.Ast;
using ICSharpCode.Decompiler.Tests.Helpers;
using Microsoft.CSharp;
using Mono.Cecil;
using NUnit.Framework;
namespace ICSharpCode.Decompiler.Tests
{
public abstract class DecompilerTestBase
{
protected static void ValidateFileRoundtrip(string samplesFileName)
{
var lines = File.ReadAllLines(Path.Combine(@"..\..\Tests", samplesFileName));
var testCode = RemoveIgnorableLines(lines);
var decompiledTestCode = RoundtripCode(testCode);
CodeAssert.AreEqual(testCode, decompiledTestCode);
}
static string RemoveIgnorableLines(IEnumerable<string> lines)
{
return CodeSampleFileParser.ConcatLines(lines.Where(l => !CodeSampleFileParser.IsCommentOrBlank(l)));
}
/// <summary>
/// Compiles and decompiles a source code.
/// </summary>
/// <param name="code">The source code to copile.</param>
/// <returns>The decompilation result of compiled source code.</returns>
static string RoundtripCode(string code)
{
DecompilerSettings settings = new DecompilerSettings();
settings.FullyQualifyAmbiguousTypeNames = false;
AssemblyDefinition assembly = Compile(code);
AstBuilder decompiler = new AstBuilder(new DecompilerContext(assembly.MainModule) { Settings = settings });
decompiler.AddAssembly(assembly);
new Helpers.RemoveCompilerAttribute().Run(decompiler.CompilationUnit);
StringWriter output = new StringWriter();
decompiler.GenerateCode(new PlainTextOutput(output));
return output.ToString();
}
static AssemblyDefinition Compile(string code)
{
CSharpCodeProvider provider = new CSharpCodeProvider(new Dictionary<string, string> { { "CompilerVersion", "v4.0" } });
CompilerParameters options = new CompilerParameters();
options.ReferencedAssemblies.Add("System.Core.dll");
CompilerResults results = provider.CompileAssemblyFromSource(options, code);
try
{
if (results.Errors.Count > 0)
{
StringBuilder b = new StringBuilder("Compiler error:");
foreach (var error in results.Errors)
{
b.AppendLine(error.ToString());
}
throw new Exception(b.ToString());
}
return AssemblyDefinition.ReadAssembly(results.PathToAssembly);
}
finally
{
File.Delete(results.PathToAssembly);
results.TempFiles.Delete();
}
}
}
}
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