2021-09-20 18:20:01 +02:00

112 lines
4.4 KiB
C#

/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using dnSpy.Contracts.Debugger.DotNet.Evaluation;
using dnSpy.Debugger.DotNet.Metadata;
using Mono.Debugger.Soft;
namespace dnSpy.Debugger.DotNet.Mono.Impl.Evaluation.Hooks {
sealed class System_String : ClassHook {
readonly DbgEngineImpl engine;
readonly IMonoDebugRuntime runtime;
public System_String(DbgEngineImpl engine, IMonoDebugRuntime runtime) {
this.engine = engine;
this.runtime = runtime;
}
AppDomainMirror GetMonoAppDomain(DmdMemberInfo member) => DbgMonoDebugInternalAppDomainImpl.GetAppDomainMirror(member.AppDomain);
public override DbgDotNetValue? CreateInstance(DmdConstructorInfo ctor, object?[] arguments) {
var appDomain = ctor.AppDomain;
var ps = ctor.GetMethodSignature().GetParameterTypes();
ValueLocation valueLocation;
switch (ps.Count) {
case 1:
// String(char* value)
if (ps[0].IsPointer && ps[0].GetElementType() == appDomain.System_Char) {
//TODO:
break;
}
// String(sbyte* value)
if (ps[0].IsPointer && ps[0].GetElementType() == appDomain.System_SByte) {
//TODO:
break;
}
// String(char[] value)
if (ps[0].IsSZArray && ps[0].GetElementType() == appDomain.System_Char) {
var value = runtime.ValueConverter.ToCharArray(arguments[0]);
if (value is null)
break;//TODO: simulate throw
var s = new string(value);
valueLocation = new NoValueLocation(appDomain.System_String, MonoValueFactory.TryCreateSyntheticValue(engine, GetMonoAppDomain(ctor), appDomain.System_String, s));
return engine.CreateDotNetValue_MonoDebug(valueLocation);
}
break;
case 2:
// String(char c, int count)
if (ps[0] == appDomain.System_Char && ps[1] == appDomain.System_Int32) {
char c = runtime.ValueConverter.ToChar(arguments[0]);
int count = runtime.ValueConverter.ToInt32(arguments[1]);
var s = new string(c, count);
valueLocation = new NoValueLocation(appDomain.System_String, MonoValueFactory.TryCreateSyntheticValue(engine, GetMonoAppDomain(ctor), appDomain.System_String, s));
return engine.CreateDotNetValue_MonoDebug(valueLocation);
}
break;
case 3:
// String(char* value, int startIndex, int length)
if (ps[0].IsPointer && ps[0].GetElementType() == appDomain.System_Char && ps[1] == appDomain.System_Int32 && ps[2] == appDomain.System_Int32) {
//TODO:
break;
}
// String(sbyte* value, int startIndex, int length)
if (ps[0].IsPointer && ps[0].GetElementType() == appDomain.System_SByte && ps[1] == appDomain.System_Int32 && ps[2] == appDomain.System_Int32) {
//TODO:
break;
}
// String(char[] value, int startIndex, int length)
if (ps[0].IsSZArray && ps[0].GetElementType() == appDomain.System_Char && ps[1] == appDomain.System_Int32 && ps[2] == appDomain.System_Int32) {
var value = runtime.ValueConverter.ToCharArray(arguments[0]);
if (value is null)
break;//TODO: simulate throw
int startIndex = runtime.ValueConverter.ToInt32(arguments[1]);
int length = runtime.ValueConverter.ToInt32(arguments[2]);
var s = new string(value, startIndex, length);
valueLocation = new NoValueLocation(appDomain.System_String, MonoValueFactory.TryCreateSyntheticValue(engine, GetMonoAppDomain(ctor), appDomain.System_String, s));
return engine.CreateDotNetValue_MonoDebug(valueLocation);
}
break;
case 4:
// String(sbyte* value, int startIndex, int length, Encoding enc)
if (ps[0].IsPointer && ps[0].GetElementType() == appDomain.System_SByte && ps[1] == appDomain.System_Int32 &&
ps[2] == appDomain.System_Int32 && ps[3] == appDomain.GetWellKnownType(DmdWellKnownType.System_Text_Encoding, isOptional: true)) {
//TODO:
break;
}
break;
}
return null;
}
}
}