diff options
Diffstat (limited to 'modules/mono/glue/Managed/Files/MarshalUtils.cs')
| -rw-r--r-- | modules/mono/glue/Managed/Files/MarshalUtils.cs | 154 |
1 files changed, 149 insertions, 5 deletions
diff --git a/modules/mono/glue/Managed/Files/MarshalUtils.cs b/modules/mono/glue/Managed/Files/MarshalUtils.cs index 7e72b0edb5..a1d63a62ef 100644 --- a/modules/mono/glue/Managed/Files/MarshalUtils.cs +++ b/modules/mono/glue/Managed/Files/MarshalUtils.cs @@ -1,5 +1,6 @@ using System; using System.Collections; +using System.Collections.Generic; namespace Godot { @@ -8,29 +9,151 @@ namespace Godot static class MarshalUtils { + /// <summary> + /// Returns <see langword="true"/> if the generic type definition of <paramref name="type"/> + /// is <see cref="Godot.Collections.Array{T}"/>; otherwise returns <see langword="false"/>. + /// </summary> + /// <exception cref="System.InvalidOperationException"> + /// <paramref name="type"/> is not a generic type. That is, IsGenericType returns false. + /// </exception> static bool TypeIsGenericArray(Type type) { return type.GetGenericTypeDefinition() == typeof(Godot.Collections.Array<>); } + /// <summary> + /// Returns <see langword="true"/> if the generic type definition of <paramref name="type"/> + /// is <see cref="Godot.Collections.Dictionary{TKey, TValue}"/>; otherwise returns <see langword="false"/>. + /// </summary> + /// <exception cref="System.InvalidOperationException"> + /// <paramref name="type"/> is not a generic type. That is, IsGenericType returns false. + /// </exception> static bool TypeIsGenericDictionary(Type type) { return type.GetGenericTypeDefinition() == typeof(Godot.Collections.Dictionary<,>); } - static void ArrayGetElementType(Type type, out Type elementType) + static void ArrayGetElementType(Type arrayType, out Type elementType) { - elementType = type.GetGenericArguments()[0]; + elementType = arrayType.GetGenericArguments()[0]; } - static void DictionaryGetKeyValueTypes(Type type, out Type keyType, out Type valueType) + static void DictionaryGetKeyValueTypes(Type dictionaryType, out Type keyType, out Type valueType) { - var genericArgs = type.GetGenericArguments(); - + var genericArgs = dictionaryType.GetGenericArguments(); keyType = genericArgs[0]; valueType = genericArgs[1]; } + static bool GenericIEnumerableIsAssignableFromType(Type type) + { + if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IEnumerable<>)) + return true; + + foreach (var interfaceType in type.GetInterfaces()) + { + if (interfaceType.IsGenericType && interfaceType.GetGenericTypeDefinition() == typeof(IEnumerable<>)) + return true; + } + + Type baseType = type.BaseType; + + if (baseType == null) + return false; + + return GenericIEnumerableIsAssignableFromType(baseType); + } + + static bool GenericIDictionaryIsAssignableFromType(Type type) + { + if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IDictionary<,>)) + return true; + + foreach (var interfaceType in type.GetInterfaces()) + { + if (interfaceType.IsGenericType && interfaceType.GetGenericTypeDefinition() == typeof(IDictionary<,>)) + return true; + } + + Type baseType = type.BaseType; + + if (baseType == null) + return false; + + return GenericIDictionaryIsAssignableFromType(baseType); + } + + static bool GenericIEnumerableIsAssignableFromType(Type type, out Type elementType) + { + if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IEnumerable<>)) + { + elementType = type.GetGenericArguments()[0]; + return true; + } + + foreach (var interfaceType in type.GetInterfaces()) + { + if (interfaceType.IsGenericType && interfaceType.GetGenericTypeDefinition() == typeof(IEnumerable<>)) + { + elementType = interfaceType.GetGenericArguments()[0]; + return true; + } + } + + Type baseType = type.BaseType; + + if (baseType == null) + { + elementType = null; + return false; + } + + return GenericIEnumerableIsAssignableFromType(baseType, out elementType); + } + + static bool GenericIDictionaryIsAssignableFromType(Type type, out Type keyType, out Type valueType) + { + if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(IDictionary<,>)) + { + var genericArgs = type.GetGenericArguments(); + keyType = genericArgs[0]; + valueType = genericArgs[1]; + return true; + } + + foreach (var interfaceType in type.GetInterfaces()) + { + if (interfaceType.IsGenericType && interfaceType.GetGenericTypeDefinition() == typeof(IDictionary<,>)) + { + var genericArgs = interfaceType.GetGenericArguments(); + keyType = genericArgs[0]; + valueType = genericArgs[1]; + return true; + } + } + + Type baseType = type.BaseType; + + if (baseType == null) + { + keyType = null; + valueType = null; + return false; + } + + return GenericIDictionaryIsAssignableFromType(baseType, out keyType, out valueType); + } + + static Type MakeGenericArrayType(Type elemType) + { + return typeof(Godot.Collections.Array<>).MakeGenericType(elemType); + } + + static Type MakeGenericDictionaryType(Type keyType, Type valueType) + { + return typeof(Godot.Collections.Dictionary<,>).MakeGenericType(keyType, valueType); + } + // TODO Add support for IEnumerable<T> and IDictionary<TKey, TValue> // TODO: EnumerableToArray and IDictionaryToDictionary can be optimized @@ -64,5 +187,26 @@ namespace Godot Dictionary.godot_icall_Dictionary_Add(godotDictionaryPtr, entry.Key, entry.Value); } } + + internal static void GenericIDictionaryToDictionary(object dictionary, IntPtr godotDictionaryPtr) + { +#if DEBUG + if (!GenericIDictionaryIsAssignableFromType(dictionary.GetType())) + throw new InvalidOperationException("The type does not implement IDictionary<,>"); +#endif + + // TODO: Can we optimize this? + + var keys = ((IEnumerable)dictionary.GetType().GetProperty("Keys").GetValue(dictionary)).GetEnumerator(); + var values = ((IEnumerable)dictionary.GetType().GetProperty("Values").GetValue(dictionary)).GetEnumerator(); + + while (keys.MoveNext() && values.MoveNext()) + { + object key = keys.Current; + object value = values.Current; + + Dictionary.godot_icall_Dictionary_Add(godotDictionaryPtr, key, value); + } + } } } |