public static MemberExpression FindMember(Thread target, TargetStructType stype,
TargetStructObject instance, string name,
bool search_static, bool search_instance)
{
again:
TargetClass klass = stype.GetClass (target);
if (klass != null) {
TargetMemberInfo member = klass.FindMember (
target, name, search_static, search_instance);
if (member != null)
return new StructAccessExpression (stype, instance, member);
ArrayList methods = new ArrayList ();
bool is_instance = false;
bool is_static = false;
TargetMethodInfo[] klass_methods = klass.GetMethods (target);
if (klass_methods != null) {
foreach (TargetMethodInfo method in klass_methods) {
if (method.IsStatic && !search_static)
continue;
if (!method.IsStatic && !search_instance)
continue;
if (method.Name != name)
continue;
methods.Add (method.Type);
if (method.IsStatic)
is_static = true;
else
is_instance = true;
}
}
if (methods.Count > 0) {
TargetFunctionType[] funcs = new TargetFunctionType [methods.Count];
methods.CopyTo (funcs, 0);
return new MethodGroupExpression (
stype, instance, name, funcs, is_instance, is_static);
}
}
TargetClassType ctype = stype as TargetClassType;
if (ctype != null) {
TargetMemberInfo member = ctype.FindMember (
name, search_static, search_instance);
if (member != null)
return new StructAccessExpression (ctype, instance, member);
ArrayList methods = new ArrayList ();
bool is_instance = false;
bool is_static = false;
if (name == ".ctor") {
foreach (TargetMethodInfo method in ctype.Constructors) {
if (method.IsStatic)
continue;
methods.Add (method.Type);
is_instance = true;
}
} else if (name == ".cctor") {
foreach (TargetMethodInfo method in ctype.Constructors) {
if (!method.IsStatic)
continue;
methods.Add (method.Type);
is_static = true;
}
} else {
foreach (TargetMethodInfo method in ctype.Methods) {
if (method.IsStatic && !search_static)
continue;
if (!method.IsStatic && !search_instance)
continue;
if (method.Name != name)
continue;
methods.Add (method.Type);
if (method.IsStatic)
is_static = true;
else
is_instance = true;
}
}
if (methods.Count > 0) {
TargetFunctionType[] funcs = new TargetFunctionType [methods.Count];
methods.CopyTo (funcs, 0);
return new MethodGroupExpression (
ctype, instance, name, funcs, is_instance, is_static);
}
}
if (stype.HasParent) {
stype = stype.GetParentType (target);
if (instance != null) {
instance = instance.GetParentObject (target);
if (instance == null)
return null;
}
goto again;
}
return null;
}
public StructAccessExpression(TargetStructType type,
TargetStructObject instance,
TargetMemberInfo member)
{
this.Type = type;
this.Member = member;
this.instance = instance;
resolved = true;
}
public MethodGroupExpression(TargetStructType stype, TargetStructObject instance,
string name, TargetFunctionType[] methods,
bool is_instance, bool is_static)
{
this.stype = stype;
this.instance = instance;
this.name = name;
this.methods = methods;
this.is_instance = is_instance;
this.is_static = is_static;
resolved = true;
}
static bool TryParentCast (MdbEvaluationContext ctx, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
return true;
if (!source_type.HasParent)
return false;
TargetStructType parent_type = source_type.GetParentType (ctx.Thread);
return TryParentCast (ctx, parent_type, target_type);
}
static TargetStructObject TryParentCast (MdbEvaluationContext ctx, TargetStructObject source, TargetStructType source_type, TargetStructType target_type)
{
if (source_type == target_type)
return source;
if (!source_type.HasParent)
return null;
TargetStructType parent_type = source_type.GetParentType (ctx.Thread);
source = TryParentCast (ctx, source, parent_type, target_type);
if (source == null)
return null;
return source.GetParentObject (ctx.Thread) as TargetClassObject;
}
static bool ImplicitReferenceConversionExists (MdbEvaluationContext ctx,
TargetStructType source,
TargetStructType target)
{
if (source == target)
return true;
if (source.Module.Name.StartsWith ("mscorlib,") && target.Module.Name.StartsWith ("mscorlib,")) {
Type t1 = Type.GetType (source.Name);
Type t2 = Type.GetType (target.Name);
return t2.IsAssignableFrom (t1);
}
if (!source.HasParent)
return false;
TargetStructType parent_type = source.GetParentType (ctx.Thread);
return ImplicitReferenceConversionExists (ctx, parent_type, target);
}