public static GenGetter CreateGetMethod(PropertyInfo pi)
{
var classType = typeof(T);
var propType = pi.PropertyType;
var propName = pi.Name;
Dictionary <Type, Dictionary <string, GenGetter> > i1 = null;
if (dGets.TryGetValue(classType, out i1))
{
Dictionary <string, GenGetter> i2 = null;
if (i1.TryGetValue(propType, out i2))
{
GenGetter i3 = null;
if (i2.TryGetValue(propName, out i3))
{
return(i3);
}
}
}
//If there is no getter, return nothing
var getMethod = pi.GetGetMethod();
if (getMethod == null)
{
return(null);
}
//Create the dynamic method to wrap the internal get method
var arguments = new Type[1] {
classType
};
var getter = new DynamicMethod(String.Concat("_Get", pi.Name, "_"), typeof(object), new Type[] { typeof(T) }, classType);
var generator = getter.GetILGenerator();
generator.DeclareLocal(propType);
generator.Emit(OpCodes.Ldarg_0);
generator.Emit(OpCodes.Castclass, classType);
generator.EmitCall(OpCodes.Callvirt, getMethod, null);
if (!propType.IsClass)
{
generator.Emit(OpCodes.Box, propType);
}
generator.Emit(OpCodes.Ret);
//Create the delegate and return it
GenGetter genGetter = (GenGetter)getter.CreateDelegate(typeof(GenGetter));
Dictionary <Type, Dictionary <string, GenGetter> > tempDict = null;
Dictionary <string, GenGetter> tempPropDict = null;
if (!dGets.ContainsKey(classType))
{
tempPropDict = new Dictionary <string, GenGetter>();
tempPropDict.Add(propName, genGetter);
tempDict = new Dictionary <Type, Dictionary <string, GenGetter> >();
tempDict.Add(propType, tempPropDict);
dGets.Add(classType, tempDict);
}
else
{
if (!dGets[classType].ContainsKey(propType))
{
tempPropDict = new Dictionary <string, GenGetter>();
tempPropDict.Add(propName, genGetter);
dGets[classType].Add(propType, tempPropDict);
}
else
{
if (!dGets[classType][propType].ContainsKey(propName))
{
dGets[classType][propType].Add(propName, genGetter);
}
}
}
return(genGetter);
}
public static GenGetter CreateGetMethod(PropertyInfo pi)
{
//Create the locals needed.
Type classType = typeof(T);
Type returnType = typeof(K);
string propertyName = pi.Name;
//Let’s return the cached delegate if we have one.
if (dGets.ContainsKey(classType))
{
if (dGets[classType].ContainsKey(returnType))
{
if (dGets[classType][returnType].ContainsKey(propertyName))
{
return(dGets[classType][returnType][propertyName]);
}
}
}
//If there is no getter, return nothing
MethodInfo getMethod = pi.GetGetMethod();
if (getMethod == null)
{
return(null);
}
//Create the dynamic method to wrap the internal get method
Type[] arguments = new Type[1];
arguments[0] = typeof(T);
DynamicMethod getter = new DynamicMethod(
String.Concat("Get", pi.Name, "_"),
typeof(K),
new Type[] { typeof(T) },
pi.DeclaringType);
ILGenerator gen = getter.GetILGenerator();
gen.DeclareLocal(typeof(K));
gen.Emit(OpCodes.Ldarg_0);
gen.Emit(OpCodes.Castclass, pi.DeclaringType);
gen.EmitCall(OpCodes.Callvirt, getMethod, null);
gen.Emit(OpCodes.Ret);
//Create the delegate and return it
GenGetter genGetter = (GenGetter)getter.CreateDelegate(typeof(GenGetter));
//Cache the delegate for future use.
Dictionary <Type, Dictionary <string, GenGetter> > tempDict = null;
Dictionary <string, GenGetter> tempPropDict = null;
if (!dGets.ContainsKey(classType))
{
tempPropDict = new Dictionary <string, GenGetter>();
tempPropDict.Add(propertyName, genGetter);
tempDict = new Dictionary <Type, Dictionary <string, GenGetter> >();
tempDict.Add(returnType, tempPropDict);
dGets.Add(classType, tempDict);
}
else
{
if (!dGets[classType].ContainsKey(returnType))
{
tempPropDict = new Dictionary <string, GenGetter>();
tempPropDict.Add(propertyName, genGetter);
dGets[classType].Add(returnType, tempPropDict);
}
else
{
if (!dGets[classType][returnType].ContainsKey(propertyName))
{
dGets[classType][returnType].Add(propertyName, genGetter);
}
}
}
//Return delegate to the caller.
return(genGetter);
}
