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Clean up logic of object interpretation in PDT interpreter.

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PopSlime
2023-04-07 12:21:20 +08:00
parent 1fc5ea8ac6
commit 6cb36a7064
3 changed files with 40 additions and 54 deletions
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86
Assets/Cryville/Common/Pdt/PdtInterpreter.cs
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@@ -229,7 +229,7 @@ namespace Cryville.Common.Pdt {
}
object InterpretObject(Type type) {
var result = ReflectionHelper.InvokeEmptyConstructor(type);
bool dictflag = typeof(IDictionary).IsAssignableFrom(type);
bool pcflag = PairCollection.IsPairCollection(type);
while (true) {
try { ws(); }
catch (IndexOutOfRangeException) { return result; }
@@ -241,69 +241,47 @@ namespace Cryville.Common.Pdt {
char c = GetChar();
switch (c) {
case '{':
if (dictflag) {
var ktype = type.GetGenericArguments()[0];
var ptype = type.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = InterpretObject(ptype);
((IDictionary)result).Add(key, value);
}
else {
MemberInfo prop = null;
bool flag = false;
if (pkey is string) prop = ReflectionHelper.GetMember(type, (string)pkey);
if (prop == null) flag = ReflectionHelper.TryFindMemberWithAttribute<ElementListAttribute>(type, out prop);
if (prop == null) throw new MissingMemberException(string.Format("The property \"{0}\" is not found", pkey));
Type ptype = ReflectionHelper.GetMemberType(prop);
if (flag) {
using (var collection = new PairCollection(ReflectionHelper.GetValue(prop, result))) {
var ktype = ptype.GetGenericArguments()[0];
var vtype = ptype.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = InterpretObject(vtype);
collection.Add(key, value);
}
}
else ReflectionHelper.SetValue(prop, result, InterpretObject(ptype));
}
InterpretObjectInternal<ElementListAttribute>(pcflag, type, pkey, result, type => InterpretObject(type));
break;
case ':':
case ';':
var exp = c == ';' ? _emptyexp : GetExp();
if (dictflag) {
var ktype = type.GetGenericArguments()[0];
var vtype = type.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = _binder.ChangeType(exp, vtype, null);
((IDictionary)result).Add(key, value);
}
else {
MemberInfo prop = null;
bool flag = false;
if (pkey is string) prop = ReflectionHelper.GetMember(type, (string)pkey);
if (prop == null) flag = ReflectionHelper.TryFindMemberWithAttribute<PropertyListAttribute>(type, out prop);
if (prop == null) throw new MissingMemberException(string.Format("The property \"{0}\" is not found", pkey));
var ptype = ReflectionHelper.GetMemberType(prop);
if (flag) {
using (var collection = new PairCollection(ReflectionHelper.GetValue(prop, result))) {
var ktype = ptype.GetGenericArguments()[0];
var vtype = ptype.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = _binder.ChangeType(exp, vtype, null);
collection.Add(key, value);
}
}
else {
object value = _binder.ChangeType(exp, ptype, null);
ReflectionHelper.SetValue(prop, result, value, _binder);
}
}
InterpretObjectInternal<PropertyListAttribute>(pcflag, type, pkey, result, type => _binder.ChangeType(exp, type, null));
break;
default:
throw new InvalidOperationException("Internal error: Invalid key interpretation");
}
}
}
void InterpretObjectInternal<T>(bool pcflag, Type type, object pkey, object result, Func<Type, object> vfunc) where T : Attribute {
if (pcflag) {
using (var collection = new PairCollection(result)) {
var ktype = type.GetGenericArguments()[0];
var ptype = type.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = vfunc(ptype);
collection.Add(key, value);
}
}
else {
MemberInfo prop = null;
bool flag = false;
if (pkey is string) prop = ReflectionHelper.GetMember(type, (string)pkey);
if (prop == null) flag = ReflectionHelper.TryFindMemberWithAttribute<T>(type, out prop);
if (prop == null) throw new MissingMemberException(string.Format("The property \"{0}\" is not found", pkey));
Type ptype = ReflectionHelper.GetMemberType(prop);
if (flag) {
using (var collection = new PairCollection(ReflectionHelper.GetValue(prop, result))) {
var ktype = ptype.GetGenericArguments()[0];
var vtype = ptype.GetGenericArguments()[1];
object key = _binder.ChangeType(pkey, ktype, null);
object value = vfunc(vtype);
collection.Add(key, value);
}
}
else ReflectionHelper.SetValue(prop, result, vfunc(ptype), _binder);
}
}
/// <summary>
/// Interprets a key from the current position.
/// </summary>