239 lines
9.8 KiB
C#
239 lines
9.8 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text;
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using dnSpy.Contracts.Debugger.DotNet.Evaluation;
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using dnSpy.Contracts.Debugger.DotNet.Evaluation.ValueNodes;
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using dnSpy.Contracts.Debugger.Evaluation;
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using dnSpy.Contracts.Debugger.Text;
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using dnSpy.Debugger.DotNet.Metadata;
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using dnSpy.Roslyn.Debugger.Formatters;
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namespace dnSpy.Roslyn.Debugger.ValueNodes.CSharp {
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[ExportDbgDotNetValueNodeFactory(DbgDotNetLanguageGuids.CSharp)]
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sealed class CSharpValueNodeFactory : LanguageValueNodeFactory {
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internal const TypeFormatterOptions TypeFormatterOptions = Formatters.TypeFormatterOptions.IntrinsicTypeKeywords | Formatters.TypeFormatterOptions.Namespaces;
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const string Keyword_this = "this";
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const string Keyword_params = "params";
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const string Keyword_out = "out";
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const string Keyword_ref = "ref";
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const string Keyword_in = "in";
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const string GenericsParenOpen = "<";
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const string GenericsParenClose = ">";
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const string IndexerParenOpen = "[";
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const string IndexerParenClose = "]";
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protected override bool SupportsModuleTypes => false;
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protected override DbgDotNetValueNodeProviderFactory CreateValueNodeProviderFactory() => new CSharpValueNodeProviderFactory(this);
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protected override bool IsIdentifierPartCharacter(char c) => Utilities.UnicodeCharacterUtilities.IsIdentifierPartCharacter(c);
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void AddCastBegin(StringBuilder sb, DmdType? castType) {
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if (castType is null)
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return;
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sb.Append("((");
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new Formatters.CSharp.CSharpTypeFormatter(new DbgStringBuilderTextWriter(sb), TypeFormatterOptions, null).Format(castType, null);
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sb.Append(')');
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}
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void AddCastEnd(StringBuilder sb, DmdType? castType) {
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if (castType is null)
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return;
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sb.Append(')');
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}
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public override string GetFieldExpression(string baseExpression, string name, DmdType? castType, bool addParens) {
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baseExpression = RemoveFormatSpecifiers(baseExpression);
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var sb = ObjectCache.AllocStringBuilder();
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AddCastBegin(sb, castType);
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AddParens(sb, baseExpression, addParens);
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AddCastEnd(sb, castType);
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sb.Append('.');
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sb.Append(name);
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return ObjectCache.FreeAndToString(ref sb);
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}
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public override string GetPropertyExpression(string baseExpression, string name, DmdType? castType, bool addParens) {
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baseExpression = RemoveFormatSpecifiers(baseExpression);
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var sb = ObjectCache.AllocStringBuilder();
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AddCastBegin(sb, castType);
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AddParens(sb, baseExpression, addParens);
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AddCastEnd(sb, castType);
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sb.Append('.');
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sb.Append(name);
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return ObjectCache.FreeAndToString(ref sb);
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}
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public override string GetExpression(string baseExpression, int index, DmdType? castType, bool addParens) {
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baseExpression = RemoveFormatSpecifiers(baseExpression);
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var sb = ObjectCache.AllocStringBuilder();
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AddCastBegin(sb, castType);
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AddParens(sb, baseExpression, addParens);
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AddCastEnd(sb, castType);
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sb.Append('[');
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sb.Append(index.ToString());
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sb.Append(']');
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return ObjectCache.FreeAndToString(ref sb);
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}
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public override string GetExpression(string baseExpression, int[] indexes, DmdType? castType, bool addParens) {
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baseExpression = RemoveFormatSpecifiers(baseExpression);
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var sb = ObjectCache.AllocStringBuilder();
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AddCastBegin(sb, castType);
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AddParens(sb, baseExpression, addParens);
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AddCastEnd(sb, castType);
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sb.Append('[');
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for (int i = 0; i < indexes.Length; i++) {
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if (i > 0)
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sb.Append(',');
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sb.Append(indexes[i].ToString());
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}
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sb.Append(']');
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return ObjectCache.FreeAndToString(ref sb);
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}
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protected override string EscapeIdentifier(string identifier) => Formatters.CSharp.CSharpTypeFormatter.GetFormattedIdentifier(identifier);
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protected override void FormatReturnValueMethodName(DbgEvaluationInfo evalInfo, IDbgTextWriter output, DbgValueFormatterTypeOptions typeOptions, DbgValueFormatterOptions valueOptions, CultureInfo? cultureInfo, DmdMethodBase method, DmdPropertyInfo? property) {
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var typeFormatter = new Formatters.CSharp.CSharpTypeFormatter(output, typeOptions.ToTypeFormatterOptions(), null);
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typeFormatter.Format(method.DeclaringType!, null);
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var valueFormatter = new Formatters.CSharp.CSharpPrimitiveValueFormatter(output, valueOptions.ToValueFormatterOptions(), cultureInfo);
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output.Write(DbgTextColor.Operator, ".");
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if (property is not null) {
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if (property.GetIndexParameters().Count != 0) {
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output.Write(DbgTextColor.Keyword, Keyword_this);
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WriteMethodParameterList(output, method, typeFormatter, GetAllMethodParameterTypes(property.GetMethodSignature()), IndexerParenOpen, IndexerParenClose);
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}
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else
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output.Write(MemberUtils.GetColor(property), Formatters.CSharp.CSharpTypeFormatter.GetFormattedIdentifier(property.Name));
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valueFormatter.WriteTokenComment(property.MetadataToken);
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output.Write(DbgTextColor.Operator, ".");
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output.Write(DbgTextColor.Keyword, "get");
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valueFormatter.WriteTokenComment(method.MetadataToken);
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}
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else {
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var methodColor = TypeFormatterUtils.GetColor(method, canBeModule: false);
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if (TypeFormatterUtils.TryGetMethodName(method.Name, out var containingMethodName, out var localFunctionName)) {
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output.Write(methodColor, Formatters.CSharp.CSharpTypeFormatter.GetFormattedIdentifier(containingMethodName));
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output.Write(DbgTextColor.Operator, ".");
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output.Write(methodColor, Formatters.CSharp.CSharpTypeFormatter.GetFormattedIdentifier(localFunctionName));
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valueFormatter.WriteTokenComment(method.MetadataToken);
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WriteGenericMethodArguments(output, method, typeFormatter);
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}
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else {
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var operatorInfo = Formatters.CSharp.Operators.TryGetOperatorInfo(method.Name);
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if (operatorInfo is not null && method is DmdMethodInfo methodInfo) {
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bool isExplicitOrImplicit = operatorInfo[0] == "explicit" || operatorInfo[0] == "implicit";
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for (int i = 0; i < operatorInfo.Length; i++) {
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if (i > 0)
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output.Write(DbgTextColor.Text, " ");
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var s = operatorInfo[i];
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output.Write('a' <= s[0] && s[0] <= 'z' ? DbgTextColor.Keyword : DbgTextColor.Operator, s);
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}
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valueFormatter.WriteTokenComment(method.MetadataToken);
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WriteGenericMethodArguments(output, method, typeFormatter);
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if (isExplicitOrImplicit) {
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output.Write(DbgTextColor.Text, " ");
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typeFormatter.Format(methodInfo.ReturnType, null);
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}
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}
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else {
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output.Write(methodColor, Formatters.CSharp.CSharpTypeFormatter.GetFormattedIdentifier(method.Name));
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valueFormatter.WriteTokenComment(method.MetadataToken);
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WriteGenericMethodArguments(output, method, typeFormatter);
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}
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}
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}
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}
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static IList<DmdType> GetAllMethodParameterTypes(DmdMethodSignature sig) {
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if (sig.GetVarArgsParameterTypes().Count == 0)
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return sig.GetParameterTypes();
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var list = new List<DmdType>(sig.GetParameterTypes().Count + sig.GetVarArgsParameterTypes().Count);
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list.AddRange(sig.GetParameterTypes());
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list.AddRange(sig.GetVarArgsParameterTypes());
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return list;
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}
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void WriteMethodParameterList(IDbgTextWriter output, DmdMethodBase method, Formatters.CSharp.CSharpTypeFormatter typeFormatter, IList<DmdType> parameterTypes, string openParen, string closeParen) {
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output.Write(DbgTextColor.Punctuation, openParen);
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int baseIndex = method.IsStatic ? 0 : 1;
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var parameters = method.GetParameters();
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for (int i = 0; i < parameterTypes.Count; i++) {
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if (i > 0) {
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output.Write(DbgTextColor.Punctuation, ",");
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output.Write(DbgTextColor.Text, " ");
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}
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var param = i < parameters.Count ? parameters[i] : null;
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if (param?.IsDefined("System.ParamArrayAttribute", false) == true) {
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output.Write(DbgTextColor.Keyword, Keyword_params);
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output.Write(DbgTextColor.Text, " ");
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}
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var parameterType = parameterTypes[i];
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WriteRefIfByRef(output, param);
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if (parameterType.IsByRef)
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parameterType = parameterType.GetElementType()!;
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typeFormatter.Format(parameterType, null);
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}
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output.Write(DbgTextColor.Punctuation, closeParen);
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}
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void WriteRefIfByRef(IDbgTextWriter output, DmdParameterInfo? param) {
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if (param is null)
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return;
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var type = param.ParameterType;
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if (!type.IsByRef)
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return;
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if (!param.IsIn && param.IsOut) {
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output.Write(DbgTextColor.Keyword, Keyword_out);
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output.Write(DbgTextColor.Text, " ");
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}
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else if (!param.IsIn && !param.IsOut && TypeFormatterUtils.IsReadOnlyParameter(param)) {
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output.Write(DbgTextColor.Keyword, Keyword_in);
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output.Write(DbgTextColor.Text, " ");
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}
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else {
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output.Write(DbgTextColor.Keyword, Keyword_ref);
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output.Write(DbgTextColor.Text, " ");
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}
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}
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void WriteGenericMethodArguments(IDbgTextWriter output, DmdMethodBase method, Formatters.CSharp.CSharpTypeFormatter typeFormatter) {
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var genArgs = method.GetGenericArguments();
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if (genArgs.Count == 0)
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return;
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output.Write(DbgTextColor.Punctuation, GenericsParenOpen);
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for (int i = 0; i < genArgs.Count; i++) {
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if (i > 0) {
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output.Write(DbgTextColor.Punctuation, ",");
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output.Write(DbgTextColor.Text, " ");
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}
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typeFormatter.Format(genArgs[i], null);
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}
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output.Write(DbgTextColor.Punctuation, GenericsParenClose);
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}
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}
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}
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