Inheritance: BaseFunction
Beispiel #1
0
		private void Reflect(Scriptable scope, bool includeProtected, bool includePrivate)
		{
			// We reflect methods first, because we want overloaded field/method
			// names to be allocated to the NativeJavaMethod before the field
			// gets in the way.
			MethodInfo[] methods = DiscoverAccessibleMethods(cl, includeProtected, includePrivate);
			foreach (MethodInfo method in methods)
			{
				int mods = method.Attributes;
				bool isStatic = Modifier.IsStatic(mods);
				IDictionary<string, object> ht = isStatic ? staticMembers : members;
				string name = method.Name;
				object value = ht.Get(name);
				if (value == null)
				{
					ht.Put(name, method);
				}
				else
				{
					ObjArray overloadedMethods;
					if (value is ObjArray)
					{
						overloadedMethods = (ObjArray)value;
					}
					else
					{
						if (!(value is MethodInfo))
						{
							Kit.CodeBug();
						}
						// value should be instance of Method as at this stage
						// staticMembers and members can only contain methods
						overloadedMethods = new ObjArray();
						overloadedMethods.Add(value);
						ht.Put(name, overloadedMethods);
					}
					overloadedMethods.Add(method);
				}
			}
			// replace Method instances by wrapped NativeJavaMethod objects
			// first in staticMembers and then in members
			for (int tableCursor = 0; tableCursor != 2; ++tableCursor)
			{
				bool isStatic = (tableCursor == 0);
				IDictionary<string, object> ht = isStatic ? staticMembers : members;
				foreach (KeyValuePair<string, object> entry in ht.EntrySet())
				{
					MemberBox[] methodBoxes;
					object value = entry.Value;
					if (value is MethodInfo)
					{
						methodBoxes = new MemberBox[1];
						methodBoxes[0] = new MemberBox((MethodInfo)value);
					}
					else
					{
						ObjArray overloadedMethods = (ObjArray)value;
						int N = overloadedMethods.Size();
						if (N < 2)
						{
							Kit.CodeBug();
						}
						methodBoxes = new MemberBox[N];
						for (int i = 0; i != N; ++i)
						{
							MethodInfo method_1 = (MethodInfo)overloadedMethods.Get(i);
							methodBoxes[i] = new MemberBox(method_1);
						}
					}
					NativeJavaMethod fun = new NativeJavaMethod(methodBoxes);
					if (scope != null)
					{
						ScriptRuntime.SetFunctionProtoAndParent(fun, scope);
					}
					ht.Put(entry.Key, fun);
				}
			}
			// Reflect fields.
			FieldInfo[] fields = GetAccessibleFields(includeProtected, includePrivate);
			foreach (FieldInfo field in fields)
			{
				string name = field.Name;
				int mods = field.Attributes;
				try
				{
					bool isStatic = Modifier.IsStatic(mods);
					IDictionary<string, object> ht = isStatic ? staticMembers : members;
					object member = ht.Get(name);
					if (member == null)
					{
						ht.Put(name, field);
					}
					else
					{
						if (member is NativeJavaMethod)
						{
							NativeJavaMethod method_1 = (NativeJavaMethod)member;
							FieldAndMethods fam = new FieldAndMethods(scope, method_1.methods, field);
							IDictionary<string, FieldAndMethods> fmht = isStatic ? staticFieldAndMethods : fieldAndMethods;
							if (fmht == null)
							{
								fmht = new Dictionary<string, FieldAndMethods>();
								if (isStatic)
								{
									staticFieldAndMethods = fmht;
								}
								else
								{
									fieldAndMethods = fmht;
								}
							}
							fmht.Put(name, fam);
							ht.Put(name, fam);
						}
						else
						{
							if (member is FieldInfo)
							{
								FieldInfo oldField = (FieldInfo)member;
								// If this newly reflected field shadows an inherited field,
								// then replace it. Otherwise, since access to the field
								// would be ambiguous from Java, no field should be
								// reflected.
								// For now, the first field found wins, unless another field
								// explicitly shadows it.
								if (oldField.DeclaringType.IsAssignableFrom(field.DeclaringType))
								{
									ht.Put(name, field);
								}
							}
							else
							{
								// "unknown member type"
								Kit.CodeBug();
							}
						}
					}
				}
				catch (SecurityException)
				{
					// skip this field
					Context.ReportWarning("Could not access field " + name + " of class " + cl.FullName + " due to lack of privileges.");
				}
			}
			// Create bean properties from corresponding get/set methods first for
			// static members and then for instance members
			for (int tableCursor_1 = 0; tableCursor_1 != 2; ++tableCursor_1)
			{
				bool isStatic = (tableCursor_1 == 0);
				IDictionary<string, object> ht = isStatic ? staticMembers : members;
				IDictionary<string, BeanProperty> toAdd = new Dictionary<string, BeanProperty>();
				// Now, For each member, make "bean" properties.
				foreach (string name in ht.Keys)
				{
					// Is this a getter?
					bool memberIsGetMethod = name.StartsWith("get");
					bool memberIsSetMethod = name.StartsWith("set");
					bool memberIsIsMethod = name.StartsWith("is");
					if (memberIsGetMethod || memberIsIsMethod || memberIsSetMethod)
					{
						// Double check name component.
						string nameComponent = Sharpen.Runtime.Substring(name, memberIsIsMethod ? 2 : 3);
						if (nameComponent.Length == 0)
						{
							continue;
						}
						// Make the bean property name.
						string beanPropertyName = nameComponent;
						char ch0 = nameComponent[0];
						if (System.Char.IsUpper(ch0))
						{
							if (nameComponent.Length == 1)
							{
								beanPropertyName = nameComponent.ToLower();
							}
							else
							{
								char ch1 = nameComponent[1];
								if (!System.Char.IsUpper(ch1))
								{
									beanPropertyName = System.Char.ToLower(ch0) + Sharpen.Runtime.Substring(nameComponent, 1);
								}
							}
						}
						// If we already have a member by this name, don't do this
						// property.
						if (toAdd.ContainsKey(beanPropertyName))
						{
							continue;
						}
						object v = ht.Get(beanPropertyName);
						if (v != null)
						{
							// A private field shouldn't mask a public getter/setter
							if (!includePrivate || !(v is MemberInfo) || !Modifier.IsPrivate(((MemberInfo)v).Attributes))
							{
								continue;
							}
						}
						// Find the getter method, or if there is none, the is-
						// method.
						MemberBox getter = null;
						getter = FindGetter(isStatic, ht, "get", nameComponent);
						// If there was no valid getter, check for an is- method.
						if (getter == null)
						{
							getter = FindGetter(isStatic, ht, "is", nameComponent);
						}
						// setter
						MemberBox setter = null;
						NativeJavaMethod setters = null;
						string setterName = System.String.Concat("set", nameComponent);
						if (ht.ContainsKey(setterName))
						{
							// Is this value a method?
							object member = ht.Get(setterName);
							if (member is NativeJavaMethod)
							{
								NativeJavaMethod njmSet = (NativeJavaMethod)member;
								if (getter != null)
								{
									// We have a getter. Now, do we have a matching
									// setter?
									Type type = getter.Method().ReturnType;
									setter = ExtractSetMethod(type, njmSet.methods, isStatic);
								}
								else
								{
									// No getter, find any set method
									setter = ExtractSetMethod(njmSet.methods, isStatic);
								}
								if (njmSet.methods.Length > 1)
								{
									setters = njmSet;
								}
							}
						}
						// Make the property.
						BeanProperty bp = new BeanProperty(getter, setter, setters);
						toAdd.Put(beanPropertyName, bp);
					}
				}
				// Add the new bean properties.
				foreach (string key in toAdd.Keys)
				{
					object value = toAdd.Get(key);
					ht.Put(key, value);
				}
			}
			// Reflect constructors
			ConstructorInfo<object>[] constructors = GetAccessibleConstructors(includePrivate);
			MemberBox[] ctorMembers = new MemberBox[constructors.Length];
			for (int i_1 = 0; i_1 != constructors.Length; ++i_1)
			{
				ctorMembers[i_1] = new MemberBox(constructors[i_1]);
			}
			ctors = new NativeJavaMethod(ctorMembers, cl.Name);
		}
Beispiel #2
0
		internal BeanProperty(MemberBox getter, MemberBox setter, NativeJavaMethod setters)
		{
			this.getter = getter;
			this.setter = setter;
			this.setters = setters;
		}
Beispiel #3
0
		private object GetExplicitFunction(Scriptable scope, string name, object javaObject, bool isStatic)
		{
			IDictionary<string, object> ht = isStatic ? staticMembers : members;
			object member = null;
			MemberBox methodOrCtor = FindExplicitFunction(name, isStatic);
			if (methodOrCtor != null)
			{
				Scriptable prototype = ScriptableObject.GetFunctionPrototype(scope);
				if (methodOrCtor.IsCtor())
				{
					NativeJavaConstructor fun = new NativeJavaConstructor(methodOrCtor);
					fun.SetPrototype(prototype);
					member = fun;
					ht.Put(name, fun);
				}
				else
				{
					string trueName = methodOrCtor.GetName();
					member = ht.Get(trueName);
					if (member is NativeJavaMethod && ((NativeJavaMethod)member).methods.Length > 1)
					{
						NativeJavaMethod fun = new NativeJavaMethod(methodOrCtor, name);
						fun.SetPrototype(prototype);
						ht.Put(name, fun);
						member = fun;
					}
				}
			}
			return member;
		}