504 lines
17 KiB
C#
504 lines
17 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;
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using System.Collections.Generic;
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using System.Globalization;
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using dnSpy.Contracts.Debugger;
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using dnSpy.Contracts.Debugger.DotNet.Code;
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using dnSpy.Contracts.Debugger.DotNet.Evaluation;
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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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namespace dnSpy.Roslyn.Debugger.Formatters.VisualBasic {
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readonly struct VisualBasicStackFrameFormatter {
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readonly IDbgTextWriter output;
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readonly DbgEvaluationInfo evalInfo;
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readonly LanguageFormatter languageFormatter;
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readonly DbgStackFrameFormatterOptions options;
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readonly ValueFormatterOptions valueOptions;
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readonly CultureInfo cultureInfo;
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const string Keyword_As = "As";
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const string Keyword_get = "Get";
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const string Keyword_set = "Set";
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const string Keyword_add = "Add";
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const string Keyword_remove = "Remove";
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const string Keyword_ByRef = "ByRef";
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const string Keyword_params = "ParamArray";
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const string Keyword_New = "New";
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const string Keyword_Sub = "Sub";
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const string Keyword_Function = "Function";
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const string Keyword_ReadOnly = "ReadOnly";
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const string Keyword_Property = "Property";
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const string Keyword_Event = "Event";
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const string MethodParenOpen = "(";
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const string MethodParenClose = ")";
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const string GenericsParenOpen = "(";
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const string GenericsParenClose = ")";
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const string Keyword_Of = "Of";
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const string CommentBegin = "/*";
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const string CommentEnd = "*/";
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bool ModuleNames => (options & DbgStackFrameFormatterOptions.ModuleNames) != 0;
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bool ParameterTypes => (options & DbgStackFrameFormatterOptions.ParameterTypes) != 0;
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bool ParameterNames => (options & DbgStackFrameFormatterOptions.ParameterNames) != 0;
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bool ParameterValues => (options & DbgStackFrameFormatterOptions.ParameterValues) != 0;
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bool DeclaringTypes => (options & DbgStackFrameFormatterOptions.DeclaringTypes) != 0;
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bool ReturnTypes => (options & DbgStackFrameFormatterOptions.ReturnTypes) != 0;
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bool Namespaces => (options & DbgStackFrameFormatterOptions.Namespaces) != 0;
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bool IntrinsicTypeKeywords => (options & DbgStackFrameFormatterOptions.IntrinsicTypeKeywords) != 0;
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bool Decimal => (options & DbgStackFrameFormatterOptions.Decimal) != 0;
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bool Tokens => (options & DbgStackFrameFormatterOptions.Tokens) != 0;
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bool ShowIP => (options & DbgStackFrameFormatterOptions.IP) != 0;
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bool DigitSeparators => (options & DbgStackFrameFormatterOptions.DigitSeparators) != 0;
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bool FullString => (options & DbgStackFrameFormatterOptions.FullString) != 0;
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public VisualBasicStackFrameFormatter(IDbgTextWriter output, DbgEvaluationInfo evalInfo, LanguageFormatter languageFormatter, DbgStackFrameFormatterOptions options, ValueFormatterOptions valueOptions, CultureInfo? cultureInfo) {
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this.output = output ?? throw new ArgumentNullException(nameof(output));
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this.evalInfo = evalInfo ?? throw new ArgumentNullException(nameof(evalInfo));
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this.languageFormatter = languageFormatter ?? throw new ArgumentNullException(nameof(languageFormatter));
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this.options = options;
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this.valueOptions = valueOptions;
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this.cultureInfo = cultureInfo ?? CultureInfo.InvariantCulture;
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}
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void OutputWrite(string s, DbgTextColor color) => output.Write(color, s);
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void WriteSpace() => OutputWrite(" ", DbgTextColor.Text);
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void WritePeriod() => OutputWrite(".", DbgTextColor.Operator);
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void WriteIdentifier(string id, DbgTextColor color) => OutputWrite(VisualBasicTypeFormatter.GetFormattedIdentifier(id), color);
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void WriteCommaSpace() {
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OutputWrite(",", DbgTextColor.Punctuation);
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WriteSpace();
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}
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ValueFormatterOptions GetValueFormatterOptions() {
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const ValueFormatterOptions Mask =
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ValueFormatterOptions.Decimal |
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ValueFormatterOptions.Namespaces |
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ValueFormatterOptions.IntrinsicTypeKeywords |
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ValueFormatterOptions.Tokens |
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ValueFormatterOptions.DigitSeparators;
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var res = valueOptions & ~Mask;
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if (Decimal)
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res |= ValueFormatterOptions.Decimal;
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if (Namespaces)
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res |= ValueFormatterOptions.Namespaces;
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if (IntrinsicTypeKeywords)
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res |= ValueFormatterOptions.IntrinsicTypeKeywords;
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if (Tokens)
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res |= ValueFormatterOptions.Tokens;
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if (DigitSeparators)
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res |= ValueFormatterOptions.DigitSeparators;
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if (FullString)
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res |= ValueFormatterOptions.FullString;
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return res;
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}
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void FormatType(DmdType type) {
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var typeOptions = GetValueFormatterOptions().ToTypeFormatterOptions(showArrayValueSizes: false);
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new VisualBasicTypeFormatter(output, typeOptions, cultureInfo).Format(type, null);
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}
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void WriteToken(DmdMemberInfo member) {
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if (!Tokens)
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return;
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var primitiveFormatter = new VisualBasicPrimitiveValueFormatter(output, GetValueFormatterOptions() & ~ValueFormatterOptions.Decimal, cultureInfo);
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var tokenString = primitiveFormatter.ToFormattedUInt32((uint)member.MetadataToken);
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OutputWrite(CommentBegin + tokenString + CommentEnd, DbgTextColor.Comment);
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}
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bool NeedThreadSwitch() {
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if (!ParameterValues)
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return false;
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if (evalInfo.Frame.IsClosed)
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return false;
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var runtime = evalInfo.Runtime.GetDotNetRuntime();
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if (runtime.Dispatcher.CheckAccess())
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return false;
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var sig = runtime.GetFrameMethod(evalInfo)?.GetMethodSignature();
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return sig is not null && (sig.GetParameterTypes().Count > 0 || sig.GetVarArgsParameterTypes().Count > 0);
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}
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public void Format() {
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// Minimize thread switches by switching to the debug engine thread
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if (NeedThreadSwitch())
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FormatInvoke();
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else
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FormatCore();
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}
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void FormatInvoke() {
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var @this = this;
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if (!evalInfo.Runtime.GetDotNetRuntime().Dispatcher.TryInvoke(() => @this.FormatCore())) {
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// process has exited
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OutputWrite("???", DbgTextColor.Error);
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}
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}
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void FormatCore() {
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if (ModuleNames) {
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OutputWrite(evalInfo.Frame.Module?.Name ?? "???", DbgTextColor.ModuleName);
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OutputWrite("!", DbgTextColor.Operator);
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}
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var runtime = evalInfo.Runtime.GetDotNetRuntime();
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var method = runtime.GetFrameMethod(evalInfo);
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if (method is null)
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OutputWrite("???", DbgTextColor.Error);
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else {
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var propInfo = TypeFormatterUtils.TryGetProperty(method);
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if (propInfo.kind != AccessorKind.None) {
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Format(method, propInfo.property!, propInfo.kind);
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return;
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}
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var eventInfo = TypeFormatterUtils.TryGetEvent(method);
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if (eventInfo.kind != AccessorKind.None) {
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Format(method, eventInfo.@event!, eventInfo.kind);
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return;
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}
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Format(method);
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}
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}
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void WriteGenericArguments(DmdMethodBase method) {
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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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OutputWrite(GenericsParenOpen, DbgTextColor.Punctuation);
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OutputWrite(Keyword_Of, DbgTextColor.Keyword);
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WriteSpace();
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for (int i = 0; i < genArgs.Count; i++) {
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if (i > 0)
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WriteCommaSpace();
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FormatType(genArgs[i]);
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}
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OutputWrite(GenericsParenClose, DbgTextColor.Punctuation);
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}
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void WriteMethodParameterList(DmdMethodBase method, string openParen, string closeParen) =>
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WriteMethodParameterListCore(method, GetAllMethodParameterTypes(method.GetMethodSignature()), openParen, closeParen, ParameterTypes, ParameterNames, ParameterValues);
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void WriteMethodParameterListCore(DmdMethodBase method, IList<DmdType> parameterTypes, string openParen, string closeParen, bool showParameterTypes, bool showParameterNames, bool showParameterValues) {
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if (!showParameterTypes && !showParameterNames && !showParameterValues)
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return;
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OutputWrite(openParen, DbgTextColor.Punctuation);
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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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WriteCommaSpace();
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var parameterType = parameterTypes[i];
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var param = i < parameters.Count ? parameters[i] : null;
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bool needSpace = false;
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if (showParameterNames || showParameterTypes) {
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if (parameterType.IsByRef) {
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parameterType = parameterType.GetElementType()!;
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OutputWrite(Keyword_ByRef, DbgTextColor.Keyword);
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WriteSpace();
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}
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if (param?.IsDefined("System.ParamArrayAttribute", false) == true) {
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OutputWrite(Keyword_params, DbgTextColor.Keyword);
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needSpace = true;
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}
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}
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if (showParameterNames) {
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if (needSpace)
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WriteSpace();
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needSpace = true;
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if (!string2.IsNullOrEmpty(param?.Name))
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WriteIdentifier(param.Name, DbgTextColor.Parameter);
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else
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WriteIdentifier("A_" + (baseIndex + i).ToString(), DbgTextColor.Parameter);
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}
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if (showParameterTypes) {
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if (showParameterNames) {
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WriteSpace();
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OutputWrite(Keyword_As, DbgTextColor.Keyword);
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}
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if (needSpace)
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WriteSpace();
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needSpace = true;
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FormatType(parameterType);
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}
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if (showParameterValues)
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needSpace = FormatValue((uint)(baseIndex + i), needSpace);
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}
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OutputWrite(closeParen, DbgTextColor.Punctuation);
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}
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bool FormatValue(uint index, bool needSpace) {
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var runtime = evalInfo.Runtime.GetDotNetRuntime();
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DbgDotNetValueResult parameterValue = default;
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DbgDotNetValue? dereferencedValue = null;
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try {
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parameterValue = runtime.GetParameterValue(evalInfo, index);
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if (parameterValue.IsNormalResult) {
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if (needSpace) {
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WriteSpace();
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OutputWrite("=", DbgTextColor.Operator);
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WriteSpace();
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}
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needSpace = true;
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var valueFormatter = new VisualBasicValueFormatter(output, evalInfo, languageFormatter, valueOptions, cultureInfo);
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var value = parameterValue.Value;
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if (value?.Type.IsByRef == true)
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value = dereferencedValue = value.LoadIndirect().Value;
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if (value is null)
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OutputWrite("???", DbgTextColor.Error);
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else
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valueFormatter.Format(value);
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}
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}
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finally {
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parameterValue.Value?.Dispose();
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dereferencedValue?.Dispose();
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}
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return needSpace;
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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 WriteOffset() {
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if (!ShowIP)
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return;
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WriteSpace();
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OutputWrite("(", DbgTextColor.Punctuation);
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OutputWrite("IL", DbgTextColor.Text);
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var primitiveFormatter = new VisualBasicPrimitiveValueFormatter(output, GetValueFormatterOptions() & ~ValueFormatterOptions.Decimal, cultureInfo);
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var loc = evalInfo.Frame.Location as IDbgDotNetCodeLocation;
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var ilOffsetMapping = loc?.ILOffsetMapping ?? DbgILOffsetMapping.Exact;
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switch (ilOffsetMapping) {
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case DbgILOffsetMapping.Prolog:
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OutputWrite("=", DbgTextColor.Operator);
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OutputWrite("prolog", DbgTextColor.Text);
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break;
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case DbgILOffsetMapping.Epilog:
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OutputWrite("=", DbgTextColor.Operator);
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OutputWrite("epilog", DbgTextColor.Text);
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break;
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case DbgILOffsetMapping.Exact:
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case DbgILOffsetMapping.Approximate:
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OutputWrite(ilOffsetMapping == DbgILOffsetMapping.Exact ? "=" : "≈", DbgTextColor.Operator);
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if (evalInfo.Frame.FunctionOffset <= ushort.MaxValue)
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primitiveFormatter.FormatUInt16((ushort)evalInfo.Frame.FunctionOffset);
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else
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primitiveFormatter.FormatUInt32(evalInfo.Frame.FunctionOffset);
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break;
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case DbgILOffsetMapping.Unknown:
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case DbgILOffsetMapping.NoInfo:
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case DbgILOffsetMapping.UnmappedAddress:
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default:
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OutputWrite("=", DbgTextColor.Operator);
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OutputWrite("???", DbgTextColor.Error);
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break;
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}
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if (loc is not null) {
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var addr = loc.NativeAddress;
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if (addr.Address != 0) {
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WriteCommaSpace();
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OutputWrite("Native", DbgTextColor.Text);
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OutputWrite("=", DbgTextColor.Operator);
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if (evalInfo.Runtime.Process.PointerSize == 4)
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primitiveFormatter.FormatUInt32((uint)addr.Address);
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else
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primitiveFormatter.FormatUInt64(addr.Address);
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long offs = (long)addr.Offset;
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if (offs < 0) {
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offs = -offs;
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OutputWrite("-", DbgTextColor.Operator);
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}
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else
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OutputWrite("+", DbgTextColor.Operator);
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primitiveFormatter.FormatFewDigits((ulong)offs);
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}
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}
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OutputWrite(")", DbgTextColor.Punctuation);
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}
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void WriteAccessor(AccessorKind accessorKind) {
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string keyword;
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|
switch (accessorKind) {
|
||
|
|
case AccessorKind.None:
|
||
|
|
default:
|
||
|
|
return;
|
||
|
|
|
||
|
|
case AccessorKind.Getter:
|
||
|
|
keyword = Keyword_get;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AccessorKind.Setter:
|
||
|
|
keyword = Keyword_set;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AccessorKind.Adder:
|
||
|
|
keyword = Keyword_add;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case AccessorKind.Remover:
|
||
|
|
keyword = Keyword_remove;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
OutputWrite(keyword, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Format(DmdMethodBase method, DmdPropertyInfo property, AccessorKind accessorKind) {
|
||
|
|
if (property.SetMethod is null) {
|
||
|
|
OutputWrite(Keyword_ReadOnly, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
}
|
||
|
|
|
||
|
|
OutputWrite(Keyword_Property, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
|
||
|
|
WriteAccessor(accessorKind);
|
||
|
|
WriteToken(method);
|
||
|
|
|
||
|
|
if (DeclaringTypes) {
|
||
|
|
FormatType(property.DeclaringType!);
|
||
|
|
WritePeriod();
|
||
|
|
}
|
||
|
|
|
||
|
|
WriteIdentifier(property.Name, TypeFormatterUtils.GetColor(property));
|
||
|
|
WriteToken(property);
|
||
|
|
WriteGenericArguments(method);
|
||
|
|
WriteMethodParameterList(method, MethodParenOpen, MethodParenClose);
|
||
|
|
WriteReturnType(method);
|
||
|
|
WriteOffset();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Format(DmdMethodBase method, DmdEventInfo @event, AccessorKind accessorKind) {
|
||
|
|
OutputWrite(Keyword_Event, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
|
||
|
|
WriteAccessor(accessorKind);
|
||
|
|
WriteToken(method);
|
||
|
|
|
||
|
|
if (DeclaringTypes) {
|
||
|
|
FormatType(@event.DeclaringType!);
|
||
|
|
WritePeriod();
|
||
|
|
}
|
||
|
|
WriteIdentifier(@event.Name, TypeFormatterUtils.GetColor(@event));
|
||
|
|
WriteToken(@event);
|
||
|
|
WriteSpace();
|
||
|
|
OutputWrite(Keyword_As, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
FormatType(@event.EventHandlerType);
|
||
|
|
WriteOffset();
|
||
|
|
}
|
||
|
|
|
||
|
|
void Format(DmdMethodBase method) {
|
||
|
|
if (StateMachineUtils.TryGetKickoffMethod(method, out var kickoffMethod))
|
||
|
|
method = kickoffMethod;
|
||
|
|
|
||
|
|
var sig = method.GetMethodSignature();
|
||
|
|
|
||
|
|
string[]? operatorInfo;
|
||
|
|
if (method is DmdConstructorInfo)
|
||
|
|
operatorInfo = null;
|
||
|
|
else
|
||
|
|
operatorInfo = Operators.TryGetOperatorInfo(method.Name);
|
||
|
|
|
||
|
|
if (operatorInfo is not null) {
|
||
|
|
for (int i = 0; i < operatorInfo.Length - 1; i++) {
|
||
|
|
WriteOperatorInfoString(operatorInfo[i]);
|
||
|
|
WriteSpace();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
bool isSub = method.GetMethodSignature().ReturnType == method.AppDomain.System_Void;
|
||
|
|
OutputWrite(isSub ? Keyword_Sub : Keyword_Function, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (DeclaringTypes) {
|
||
|
|
FormatType(method.DeclaringType!);
|
||
|
|
WritePeriod();
|
||
|
|
}
|
||
|
|
if (method is DmdConstructorInfo)
|
||
|
|
OutputWrite(Keyword_New, DbgTextColor.Keyword);
|
||
|
|
else {
|
||
|
|
if (TypeFormatterUtils.TryGetMethodName(method.Name, out var containingMethodName, out var localFunctionName)) {
|
||
|
|
var methodColor = TypeFormatterUtils.GetColor(method, canBeModule: true);
|
||
|
|
WriteIdentifier(containingMethodName, methodColor);
|
||
|
|
WritePeriod();
|
||
|
|
WriteIdentifier(localFunctionName, methodColor);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
WriteMethodName(method, method.Name, operatorInfo);
|
||
|
|
}
|
||
|
|
WriteToken(method);
|
||
|
|
|
||
|
|
WriteGenericArguments(method);
|
||
|
|
WriteMethodParameterList(method, MethodParenOpen, MethodParenClose);
|
||
|
|
WriteReturnType(method);
|
||
|
|
WriteOffset();
|
||
|
|
}
|
||
|
|
|
||
|
|
void WriteReturnType(DmdMethodBase method) {
|
||
|
|
if (!ReturnTypes)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var sig = method.GetMethodSignature();
|
||
|
|
if (sig.ReturnType == method.AppDomain.System_Void)
|
||
|
|
return;
|
||
|
|
|
||
|
|
WriteSpace();
|
||
|
|
OutputWrite(Keyword_As, DbgTextColor.Keyword);
|
||
|
|
WriteSpace();
|
||
|
|
FormatType(sig.ReturnType);
|
||
|
|
}
|
||
|
|
|
||
|
|
void WriteOperatorInfoString(string s) => OutputWrite(s, 'A' <= s[0] && s[0] <= 'Z' ? DbgTextColor.Keyword : DbgTextColor.Operator);
|
||
|
|
|
||
|
|
void WriteMethodName(DmdMethodBase method, string name, string[]? operatorInfo) {
|
||
|
|
if (operatorInfo is not null)
|
||
|
|
WriteOperatorInfoString(operatorInfo[operatorInfo.Length - 1]);
|
||
|
|
else
|
||
|
|
WriteIdentifier(name, TypeFormatterUtils.GetColor(method, canBeModule: true));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|