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Merge pull request #814 from icsharpcode/issue/174
Simple examples that always work and have the same args
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147 changes: 147 additions & 0 deletions
147
CodeConverter/CSharp/Replacements/SimpleMethodReplacement.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using ICSharpCode.CodeConverter.Util; | ||
| using Microsoft.CodeAnalysis; | ||
| using Microsoft.CodeAnalysis.CSharp; | ||
| using Microsoft.CodeAnalysis.CSharp.Syntax; | ||
|
|
||
| namespace ICSharpCode.CodeConverter.CSharp.Replacements; | ||
|
|
||
| internal class SimpleMethodReplacement | ||
| { | ||
| private const string AnnotationKind = nameof(SimpleMethodReplacement) + "placeholder"; | ||
| private static readonly IdentifierNameSyntax FirstArgPlaceholder = SyntaxFactory.IdentifierName("placeholder0").WithAdditionalAnnotations(new SyntaxAnnotation(AnnotationKind, "0")); | ||
|
|
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| private static readonly IReadOnlyDictionary<string, SimpleMethodReplacement> MethodReplacements = new SimpleMethodReplacement[] { | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.CurrentDirectory", "System.IO.Directory.GetCurrentDirectory"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.CombinePath", "System.IO.Path.Combine"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.GetDirectoryInfo", "System.IO.DirectoryInfo", true), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.GetDriveInfo", "System.IO.DriveInfo", true), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.GetFileInfo", "System.IO.FileInfo", true), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.GetName", "System.IO.Path.GetFileName"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.GetTempFileName", "System.IO.Path.GetTempFileName"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.ReadAllBytes", "System.IO.File.ReadAllBytes"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.ReadAllText", "System.IO.File.ReadAllText"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.DirectoryExists", "System.IO.Directory.Exists"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.FileExists", "System.IO.File.Exists"), | ||
| new("Microsoft.VisualBasic.MyServices.FileSystemProxy.DeleteFile", "System.IO.File.Delete"), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.Temp", "System.IO.Path.GetTempPath"), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.MyDocuments", SpecialFolderSyntax("Personal")), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.MyMusic", SpecialFolderSyntax("MyMusic")), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.MyPictures", SpecialFolderSyntax("MyPictures")), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.Desktop", SpecialFolderSyntax("Desktop")), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.Programs", SpecialFolderSyntax("Programs")), | ||
| new("Microsoft.VisualBasic.MyServices.SpecialDirectoriesProxy.ProgramFiles", SpecialFolderSyntax("ProgramFiles")), | ||
| new("Microsoft.VisualBasic.Devices.ComputerInfo.InstalledUICulture", "System.Globalization.CultureInfo.InstalledUICulture", replaceWithProperty: true), | ||
| new("Microsoft.VisualBasic.Devices.ComputerInfo.OSFullName", "System.Runtime.InteropServices.RuntimeInformation.OSDescription", replaceWithProperty: true), | ||
| new("Microsoft.VisualBasic.Devices.ComputerInfo.SPlatform", "System.Environment.OSVersion.Platform.ToString"), | ||
| new("Microsoft.VisualBasic.Devices.ComputerInfo.OSVersion", "System.Environment.OSVersion.Version.ToString"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Now", "System.DateTime.Now", replaceWithProperty: true), | ||
| new("Microsoft.VisualBasic.DateAndTime.Today", "System.DateTime.Today", replaceWithProperty: true), | ||
| new("Microsoft.VisualBasic.DateAndTime.Year", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetYear"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Month", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetMonth"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Day", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetDayOfMonth"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Hour", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetHour"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Minute", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetMinute"), | ||
| new("Microsoft.VisualBasic.DateAndTime.Second", "System.Threading.Thread.CurrentThread.CurrentCulture.Calendar.GetSecond"), | ||
| new ("Microsoft.VisualBasic.Information.IsArray", IsSystemType(nameof(Array))), | ||
| new ("Microsoft.VisualBasic.Information.IsDBNull", IsSystemType(nameof(DBNull))), | ||
| new("Microsoft.VisualBasic.Information.IsError", IsSystemType(nameof(Exception))), | ||
| new("Microsoft.VisualBasic.Information.IsNothing", Equals(SyntaxFactory.LiteralExpression(SyntaxKind.NullLiteralExpression))), | ||
| // Can use IsNotExpression in CodeAnalysis 3+ | ||
| new("Microsoft.VisualBasic.Information.IsReference", SyntaxFactory.PrefixUnaryExpression(SyntaxKind.LogicalNotExpression, IsSystemType(nameof(ValueType)))), | ||
| }.ToDictionary(x => x._toReplace.Last(), StringComparer.OrdinalIgnoreCase); | ||
|
|
||
| private static ExpressionSyntax SpecialFolderSyntax(string specialFolderEnumName) | ||
| { | ||
| return SyntaxFactory.InvocationExpression( | ||
| ValidSyntaxFactory.MemberAccess(nameof(System), nameof(Environment), nameof(Environment.GetFolderPath)), | ||
| ValidSyntaxFactory.MemberAccess(nameof(System), nameof(Environment), nameof(Environment.SpecialFolder), specialFolderEnumName).Yield().CreateCsArgList() | ||
| ); | ||
| } | ||
|
|
||
| private static ExpressionSyntax IsSystemType(string isTypeName) | ||
| { | ||
| var binaryExpressionSyntax = Is(SystemType(isTypeName)); | ||
| return SyntaxFactory.ParenthesizedExpression(binaryExpressionSyntax); | ||
| } | ||
|
|
||
| private static ExpressionSyntax Equals(ExpressionSyntax rhsExpression) => | ||
| SyntaxFactory.ParenthesizedExpression(SyntaxFactory.BinaryExpression(SyntaxKind.EqualsExpression, FirstArgPlaceholder, rhsExpression)); | ||
|
|
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| private static BinaryExpressionSyntax Is(ExpressionSyntax typeSyntax) => | ||
| SyntaxFactory.BinaryExpression(SyntaxKind.IsExpression, FirstArgPlaceholder, typeSyntax); | ||
|
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| private static QualifiedNameSyntax SystemType(string isTypeName) => | ||
| SyntaxFactory.QualifiedName(SyntaxFactory.IdentifierName(nameof(System)), SyntaxFactory.IdentifierName(isTypeName)); | ||
|
|
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| private readonly string[] _toReplace; | ||
| private readonly ExpressionSyntax _replaceWith; | ||
|
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| private SimpleMethodReplacement(string toReplace, string replaceWith, bool replaceWithObjectCreation = false, bool replaceWithProperty = false) | ||
| { | ||
| _toReplace = toReplace.Split('.'); | ||
| _replaceWith = replaceWithObjectCreation ? SyntaxFactory.ObjectCreationExpression(SyntaxFactory.ParseTypeName(replaceWith)) | ||
| : replaceWithProperty ? ValidSyntaxFactory.MemberAccess(replaceWith.Split('.')) | ||
| : SyntaxFactory.InvocationExpression(ValidSyntaxFactory.MemberAccess(replaceWith.Split('.'))); | ||
| } | ||
|
|
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| private SimpleMethodReplacement(string toReplace, ExpressionSyntax replaceWith) | ||
| { | ||
| _toReplace = toReplace.Split('.'); | ||
| _replaceWith = replaceWith; | ||
| } | ||
|
|
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| public static bool TryGet(ISymbol symbol, out SimpleMethodReplacement r) | ||
| { | ||
| r = null; | ||
| return symbol != null && MethodReplacements.TryGetValue(symbol.Name, out r); | ||
| } | ||
|
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||
| public ExpressionSyntax ReplaceIfMatches(ISymbol symbol, IEnumerable<ArgumentSyntax> args, bool isAddressOf) | ||
| { | ||
| if (QualifiedMethodNameMatches(symbol, _toReplace)) | ||
| { | ||
| if (isAddressOf) { | ||
| if (_replaceWith is InvocationExpressionSyntax ies) return ies.Expression; | ||
| return null; | ||
| } | ||
|
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| var argumentListSyntax = SyntaxFactory.ArgumentList(SyntaxFactory.SeparatedList(args)); | ||
| if (argumentListSyntax.Arguments.Any()) { | ||
| return _replaceWith switch { | ||
| ObjectCreationExpressionSyntax oces => oces.WithArgumentList(argumentListSyntax), | ||
| InvocationExpressionSyntax ies => ies.WithArgumentList(argumentListSyntax), | ||
| var zeroOrSingleArgExpression => ReplacePlaceholderArgs(zeroOrSingleArgExpression, argumentListSyntax) | ||
| }; | ||
| } | ||
|
|
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| return _replaceWith; | ||
| } | ||
|
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| return null; | ||
| } | ||
|
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| private static ExpressionSyntax ReplacePlaceholderArgs(ExpressionSyntax zeroOrSingleArgExpression, ArgumentListSyntax argumentListSyntax) | ||
| { | ||
| for (var index = 0; index < argumentListSyntax.Arguments.Count; index++) { | ||
| var expression = argumentListSyntax.Arguments[index].Expression; | ||
| var nodeToReplace = zeroOrSingleArgExpression.GetAnnotatedNodes(AnnotationKind).Single(x => x.GetAnnotations(AnnotationKind).Single().Data == index.ToString()); | ||
| zeroOrSingleArgExpression = zeroOrSingleArgExpression.ReplaceNode(nodeToReplace, expression); | ||
| } | ||
|
|
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| return zeroOrSingleArgExpression; | ||
| } | ||
|
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| private static bool QualifiedMethodNameMatches(ISymbol symbol, params string[] parts) | ||
| { | ||
| if (symbol == null) return false; | ||
| foreach (var part in parts.Reverse()) { | ||
| if (!part.Equals(symbol.Name, StringComparison.OrdinalIgnoreCase)) return false; | ||
| symbol = symbol.ContainingSymbol; | ||
| } | ||
|
|
||
| return !symbol.ContainingSymbol.CanBeReferencedByName; | ||
| } | ||
| } |
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