static AssemblyState GetAssemblyState(DmdAssembly assembly)
{
if (assembly.TryGetData(out AssemblyState? state))
{
return(state);
}
return(CreateAssemblyState(assembly));
}
static DmdType?GetType(DmdAssembly assembly, object?value)
{
if (value is DmdType type)
{
return(type);
}
if (value is string typeName)
{
return(assembly.GetType(typeName, DmdGetTypeOptions.None));
}
return(null);
}
public AssemblyState(DmdAssembly assembly)
{
dict = new Dictionary <TypeKey, DmdType>();
var proxyAttr = assembly.AppDomain.GetWellKnownType(DmdWellKnownType.System_Diagnostics_DebuggerTypeProxyAttribute, isOptional: true);
Debug2.Assert(!(proxyAttr is null));
if (!(proxyAttr is null))
{
foreach (var ca in assembly.CustomAttributes)
{
if (ca.AttributeType != proxyAttr)
{
continue;
}
if (ca.ConstructorArguments.Count != 1)
{
continue;
}
var proxyType = DebuggerTypeProxyFinder.GetType(assembly, ca.ConstructorArguments[0].Value);
if (proxyType is null)
{
continue;
}
DmdType?targetType = null;
foreach (var namedArg in ca.NamedArguments)
{
var prop = namedArg.MemberInfo as DmdPropertyInfo;
if (prop is null)
{
continue;
}
if (prop.Name == nameof(DebuggerTypeProxyAttribute.Target) || prop.Name == nameof(DebuggerTypeProxyAttribute.TargetTypeName))
{
targetType = DebuggerTypeProxyFinder.GetType(assembly, namedArg.TypedValue.Value);
break;
}
}
if (targetType is null)
{
continue;
}
dict[new TypeKey(targetType)] = proxyType;
}
}
}
static AssemblyState CreateAssemblyState(DmdAssembly assembly)
{
var state = new AssemblyState(assembly);
return(assembly.GetOrCreateData(() => state));
}