You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
203 lines
8.9 KiB
203 lines
8.9 KiB
using System;
|
|
using System.Reflection;
|
|
using UnityEngine;
|
|
|
|
namespace IPA.Utilities
|
|
{
|
|
/// <summary>
|
|
/// A utility class providing reflection helper methods.
|
|
/// </summary>
|
|
public static class ReflectionUtil
|
|
{
|
|
/// <summary>
|
|
/// Sets a (potentially) private field on the target object.
|
|
/// </summary>
|
|
/// <param name="obj">the object instance</param>
|
|
/// <param name="fieldName">the field to set</param>
|
|
/// <param name="value">the value to set it to</param>
|
|
public static void SetPrivateField(this object obj, string fieldName, object value)
|
|
{
|
|
var prop = obj.GetType().GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
|
|
prop.SetValue(obj, value);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the value of a (potentially) private field.
|
|
/// </summary>
|
|
/// <typeparam name="T">the type of te field (result casted)</typeparam>
|
|
/// <param name="obj">the object instance to pull from</param>
|
|
/// <param name="fieldName">the name of the field to read</param>
|
|
/// <returns>the value of the field</returns>
|
|
public static T GetPrivateField<T>(this object obj, string fieldName)
|
|
{
|
|
var prop = obj.GetType().GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Instance);
|
|
var value = prop.GetValue(obj);
|
|
return (T) value;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets a (potentially) private propert on the target object.
|
|
/// </summary>
|
|
/// <param name="obj">the target object instance</param>
|
|
/// <param name="propertyName">the name of the property</param>
|
|
/// <param name="value">the value to set it to</param>
|
|
public static void SetPrivateProperty(this object obj, string propertyName, object value)
|
|
{
|
|
var prop = obj.GetType()
|
|
.GetProperty(propertyName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
|
|
prop.SetValue(obj, value, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Invokes a (potentially) private method.
|
|
/// </summary>
|
|
/// <param name="obj">the object to call from</param>
|
|
/// <param name="methodName">the method name</param>
|
|
/// <param name="methodParams">the method parameters</param>
|
|
/// <returns>the return value</returns>
|
|
public static object InvokePrivateMethod(this object obj, string methodName, params object[] methodParams)
|
|
{
|
|
MethodInfo dynMethod = obj.GetType().GetMethod(methodName, BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
|
|
return dynMethod.Invoke(obj, methodParams);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Invokes a (potentially) private method.
|
|
/// </summary>
|
|
/// <typeparam name="T">the return type</typeparam>
|
|
/// <param name="obj">the object to call from</param>
|
|
/// <param name="methodName">the method name to call</param>
|
|
/// <param name="methodParams">the method's parameters</param>
|
|
/// <returns>the return value</returns>
|
|
public static T InvokePrivateMethod<T>(this object obj, string methodName, params object[] methodParams)
|
|
{
|
|
return (T)InvokePrivateMethod(obj, methodName, methodParams);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Copies a component of type originalType to a component of overridingType on the destination GameObject.
|
|
/// </summary>
|
|
/// <param name="original">the original component</param>
|
|
/// <param name="overridingType">the new component's type</param>
|
|
/// <param name="destination">the destination GameObject</param>
|
|
/// <param name="originalTypeOverride">overrides the source component type (for example, to a superclass)</param>
|
|
/// <returns>the copied component</returns>
|
|
public static Component CopyComponent(this Component original, Type overridingType, GameObject destination, Type originalTypeOverride = null)
|
|
{
|
|
var copy = destination.AddComponent(overridingType);
|
|
var originalType = originalTypeOverride ?? original.GetType();
|
|
|
|
Type type = originalType;
|
|
while (type != typeof(MonoBehaviour))
|
|
{
|
|
CopyForType(type, original, copy);
|
|
type = type.BaseType;
|
|
}
|
|
|
|
return copy;
|
|
}
|
|
|
|
/// <summary>
|
|
/// A generic version of CopyComponent.
|
|
/// <see cref="CopyComponent(Component, Type, GameObject, Type)"/>
|
|
/// </summary>
|
|
/// <typeparam name="T">the overriding type</typeparam>
|
|
/// <param name="original">the original component</param>
|
|
/// <param name="destination">the destination game object</param>
|
|
/// <param name="originalTypeOverride">overrides the source component type (for example, to a superclass)</param>
|
|
/// <returns>the copied component</returns>
|
|
public static T CopyComponent<T>(this Component original, GameObject destination, Type originalTypeOverride = null)
|
|
where T : Component
|
|
{
|
|
var copy = destination.AddComponent<T>();
|
|
var originalType = originalTypeOverride ?? original.GetType();
|
|
|
|
Type type = originalType;
|
|
while (type != typeof(MonoBehaviour))
|
|
{
|
|
CopyForType(type, original, copy);
|
|
type = type.BaseType;
|
|
}
|
|
|
|
return copy;
|
|
}
|
|
|
|
private static void CopyForType(Type type, Component source, Component destination)
|
|
{
|
|
FieldInfo[] myObjectFields = type.GetFields(BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetField);
|
|
|
|
foreach (FieldInfo fi in myObjectFields)
|
|
{
|
|
fi.SetValue(destination, fi.GetValue(source));
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calls an instance method on a type specified by functionClass and dependency.
|
|
/// <seealso cref="CallNonStaticMethod(Type, string, Type[], object[])"/>
|
|
/// </summary>
|
|
/// <param name="functionClass">the type name</param>
|
|
/// <param name="dependency">the assembly the type is in</param>
|
|
/// <param name="function">the name of the method to call</param>
|
|
/// <param name="methodSig">the type signature of the method</param>
|
|
/// <param name="parameters">the method parameters</param>
|
|
/// <returns>the result of the call</returns>
|
|
public static object CallNonStaticMethod(string functionClass, string dependency, string function, Type[] methodSig, params object[] parameters)
|
|
{
|
|
return CallNonStaticMethod(Type.GetType(string.Format("{0},{1}", functionClass, dependency)), function, methodSig, parameters);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calls an instance method on a new object.
|
|
/// </summary>
|
|
/// <param name="type">the object type</param>
|
|
/// <param name="function">the name of the method to call</param>
|
|
/// <param name="methodSig">the type signature</param>
|
|
/// <param name="parameters">the parameters</param>
|
|
/// <returns>the result of the call</returns>
|
|
public static object CallNonStaticMethod(this Type type, /*string functionClass, string dependency,*/ string function, Type[] methodSig, params object[] parameters)
|
|
{
|
|
//Type FunctionClass = Type.GetType(string.Format("{0},{1}", functionClass, dependency));
|
|
if (type != null)
|
|
{
|
|
object instance = Activator.CreateInstance(type);
|
|
if (instance != null)
|
|
{
|
|
Type instType = instance.GetType();
|
|
MethodInfo methodInfo = instType.GetMethod(function, methodSig);
|
|
if (methodInfo != null)
|
|
{
|
|
return methodInfo.Invoke(instance, parameters);
|
|
}
|
|
else
|
|
{
|
|
throw new Exception("Method not found");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw new Exception("Unable to instantiate object of type");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentNullException("type");
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Calls an instance method on a new object.
|
|
/// <seealso cref="CallNonStaticMethod(Type, string, Type[], object[])"/>
|
|
/// </summary>
|
|
/// <typeparam name="T">the return type</typeparam>
|
|
/// <param name="type">the object type</param>
|
|
/// <param name="function">the name of the method to call</param>
|
|
/// <param name="methodSig">the type signature</param>
|
|
/// <param name="parameters">the parameters</param>
|
|
/// <returns>the result of the call</returns>
|
|
public static T CallNonStaticMethod<T>(this Type type, string function, Type[] methodSig, params object[] parameters)
|
|
{
|
|
return (T)CallNonStaticMethod(type, function, methodSig, parameters);
|
|
}
|
|
}
|
|
}
|