// 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 fullPath = Path.Combine(@"..\..\Tests", samplesFileName); AssertRoundtripCode(fullPath); } static string RemoveIgnorableLines(IEnumerable lines) { return CodeSampleFileParser.ConcatLines(lines.Where(l => !CodeSampleFileParser.IsCommentOrBlank(l))); } protected static void AssertRoundtripCode(string fileName, bool optimize = false, bool useDebug = false, int compilerVersion = 4) { var code = RemoveIgnorableLines(File.ReadLines(fileName)); AssemblyDefinition assembly = CompileLegacy(code, optimize, useDebug, compilerVersion); AstBuilder decompiler = new AstBuilder(new DecompilerContext(assembly.MainModule)); decompiler.AddAssembly(assembly); new Helpers.RemoveCompilerAttribute().Run(decompiler.SyntaxTree); StringWriter output = new StringWriter(); decompiler.GenerateCode(new PlainTextOutput(output)); CodeAssert.AreEqual(code, output.ToString()); } protected static AssemblyDefinition CompileLegacy(string code, bool optimize, bool useDebug, int compilerVersion) { CSharpCodeProvider provider = new CSharpCodeProvider(new Dictionary { { "CompilerVersion", "v" + new Version(compilerVersion, 0) } }); CompilerParameters options = new CompilerParameters(); options.CompilerOptions = "/unsafe /o" + (optimize ? "+" : "-") + (useDebug ? " /debug" : ""); if (compilerVersion >= 4) 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(); } } } }