public override string GetNewObjectExpression(DmdConstructorInfo ctor, string argumentExpression, DmdType expectedType)
{
argumentExpression = LanguageValueNodeFactory.RemoveFormatSpecifiers(argumentExpression);
var sb = ObjectCache.AllocStringBuilder();
var output = new StringBuilderTextColorOutput(sb);
output.Write(BoxedTextColor.Keyword, "New");
output.Write(BoxedTextColor.Text, " ");
FormatTypeName(output, ctor.DeclaringType);
output.Write(BoxedTextColor.Punctuation, "(");
var castType = ctor.GetMethodSignature().GetParameterTypes()[0];
bool needCast = !expectedType.CanCastTo(castType);
if (needCast)
{
output.Write(BoxedTextColor.Keyword, "CType");
output.Write(BoxedTextColor.Punctuation, "(");
}
output.Write(BoxedTextColor.Text, argumentExpression);
if (needCast)
{
output.Write(BoxedTextColor.Punctuation, ",");
output.WriteSpace();
new Formatters.VisualBasic.VisualBasicTypeFormatter(new StringBuilderTextColorOutput(sb), VisualBasicValueNodeFactory.TypeFormatterOptions, null).Format(castType, null);
output.Write(BoxedTextColor.Punctuation, ")");
}
output.Write(BoxedTextColor.Punctuation, ")");
return(ObjectCache.FreeAndToString(ref sb));
}
static bool CheckIsDynamicViewType(DmdType type)
{
// Windows Runtime types aren't supported
if (type.IsWindowsRuntime)
{
return(false);
}
// Microsoft.CSharp.RuntimeBinder.DynamicMetaObjectProviderDebugView supports COM objects
if (type.CanCastTo(type.AppDomain.GetWellKnownType(DmdWellKnownType.System___ComObject, isOptional: true)))
{
return(true);
}
// Microsoft.CSharp.RuntimeBinder.DynamicMetaObjectProviderDebugView supports IDynamicMetaObjectProvider.
// This type is defined in Microsoft.CSharp which isn't always loaded. That's the reason we don't
// use a DmdWellKnownType, since when searching for one, the code will check every loaded assembly
// until the type is found, forcing all lazy-loaded metadata to be loaded. Most of the time it would
// fail, and thus load all metadata. It's a problem when debugging programs with 100+ loaded assemblies.
foreach (var iface in type.GetInterfaces())
{
if (iface.DeclaringType is null && iface.MetadataNamespace == "System.Dynamic" && iface.MetadataName == "IDynamicMetaObjectProvider")
{
return(true);
}
}
return(false);
}
protected static bool NeedCast(DmdType slotType, DmdType memberDeclaringType)
{
if (slotType.IsInterface)
{
return(true);
}
else
{
return(!slotType.CanCastTo(memberDeclaringType));
}
}
DisplayPart[] GetDisplayParts(DmdType type)
{
var ddaType = type.AppDomain.GetWellKnownType(DmdWellKnownType.System_Diagnostics_DebuggerDisplayAttribute, isOptional: true);
Debug.Assert((object)ddaType != null);
if ((object)ddaType == null)
{
return(null);
}
string debuggerDisplayString;
var attr = type.FindCustomAttribute(ddaType, inherit: true);
if (attr == null)
{
if (type.CanCastTo(type.AppDomain.System_Type))
{
// Show the same thing VS shows
debuggerDisplayString = @"\{Name = {Name} FullName = {FullName}\}";
}
else
{
return(null);
}
}
else
{
if (attr.ConstructorArguments.Count == 1)
{
debuggerDisplayString = attr.ConstructorArguments[0].Value as string;
}
else
{
debuggerDisplayString = null;
}
}
if (string.IsNullOrEmpty(debuggerDisplayString))
{
return(null);
}
return(CreateDisplayParts(debuggerDisplayString));
}
public override string GetNewObjectExpression(DmdConstructorInfo ctor, string argumentExpression, DmdType expectedType)
{
argumentExpression = LanguageValueNodeFactory.RemoveFormatSpecifiers(argumentExpression);
var sb = ObjectCache.AllocStringBuilder();
var output = new DbgStringBuilderTextWriter(sb);
output.Write(DbgTextColor.Keyword, "new");
output.Write(DbgTextColor.Text, " ");
FormatTypeName(output, ctor.DeclaringType);
output.Write(DbgTextColor.Punctuation, "(");
var castType = ctor.GetMethodSignature().GetParameterTypes()[0];
if (!expectedType.CanCastTo(castType))
{
output.Write(DbgTextColor.Punctuation, "(");
new Formatters.CSharp.CSharpTypeFormatter(new DbgStringBuilderTextWriter(sb), CSharpValueNodeFactory.TypeFormatterOptions, null).Format(castType, null);
output.Write(DbgTextColor.Punctuation, ")");
}
output.Write(DbgTextColor.Text, argumentExpression);
output.Write(DbgTextColor.Punctuation, ")");
return(ObjectCache.FreeAndToString(ref sb));
}
(DisplayPart[] nameParts, DisplayPart[] valueParts, DisplayPart[] typeParts) GetDisplayParts(DmdType type)
{
var ddaType = type.AppDomain.GetWellKnownType(DmdWellKnownType.System_Diagnostics_DebuggerDisplayAttribute, isOptional: true);
Debug.Assert((object)ddaType != null);
// We have special support for formatting KeyValuePair<K, V>, so ignore all DebuggerDisplayAttributes.
// (Only Unity and older Mono versions have a DebuggerDisplayAttribute on it)
bool forceNoAttr = type.IsConstructedGenericType && type.GetGenericTypeDefinition() == type.AppDomain.GetWellKnownType(DmdWellKnownType.System_Collections_Generic_KeyValuePair_T2, isOptional: true);
string nameDisplayString = null, valueDisplayString = null, typeDisplayString = null;
if (!forceNoAttr && (object)ddaType != null)
{
var attr = type.FindCustomAttribute(ddaType, inherit: true);
if (attr == null)
{
if (type.CanCastTo(type.AppDomain.System_Type))
{
// Show the same thing VS shows
valueDisplayString = @"\{Name = {Name} FullName = {FullName}\}";
}
}
else
{
if (attr.ConstructorArguments.Count == 1)
{
valueDisplayString = attr.ConstructorArguments[0].Value as string;
}
nameDisplayString = GetString(attr, nameof(DebuggerDisplayAttribute.Name));
typeDisplayString = GetString(attr, nameof(DebuggerDisplayAttribute.Type));
}
}
var nameParts = CreateDisplayParts(nameDisplayString);
var valueParts = CreateDisplayParts(valueDisplayString);
var typeParts = CreateDisplayParts(typeDisplayString);
return(nameParts, valueParts, typeParts);
}
(DisplayPart[] nameParts, DisplayPart[] valueParts, DisplayPart[] typeParts) GetDisplayParts(DmdType type)
{
var ddaType = type.AppDomain.GetWellKnownType(DmdWellKnownType.System_Diagnostics_DebuggerDisplayAttribute, isOptional: true);
Debug2.Assert(ddaType is not null);
bool forceNoAttr = ShouldIgnoreDebuggerDisplayAttribute(type);
string?nameDisplayString = null, valueDisplayString = null, typeDisplayString = null;
if (!forceNoAttr && ddaType is not null)
{
var attr = type.FindCustomAttribute(ddaType, inherit: true);
if (attr is null)
{
if (type.CanCastTo(type.AppDomain.System_Type))
{
// Show the same thing VS shows
valueDisplayString = @"\{Name = {Name} FullName = {FullName}\}";
}
}
else
{
if (attr.ConstructorArguments.Count == 1)
{
valueDisplayString = attr.ConstructorArguments[0].Value as string;
}
nameDisplayString = GetString(attr, nameof(DebuggerDisplayAttribute.Name));
typeDisplayString = GetString(attr, nameof(DebuggerDisplayAttribute.Type));
}
}
var nameParts = CreateDisplayParts(nameDisplayString);
var valueParts = CreateDisplayParts(valueDisplayString);
var typeParts = CreateDisplayParts(typeDisplayString);
return(nameParts, valueParts, typeParts);
}