private static void CreateSetterDelegate(Builder builder, Method setterDelegateMethod, BuilderType propertyType, object value)
{
var setterCode = setterDelegateMethod.NewCoder();
T CodeMe <T>(Func <Field, T> fieldCode, Func <Property, T> propertyCode) where T : class
{
switch (value)
{
case Field field: return(fieldCode(field));
case Property property: return(propertyCode(property));
default: return(null);
}
}
if (propertyType.ParameterlessContructor != null && propertyType.ParameterlessContructor.IsPublic)
{
CodeMe(
field => setterCode.If(x => x.Load(field).IsNull(), then => then.SetValue(field, x => x.NewObj(propertyType.ParameterlessContructor))),
property => setterCode.If(x => x.Call(property.Getter).IsNull(), then => then.Call(property.Setter, x => x.NewObj(propertyType.ParameterlessContructor))));
}
// Only this if the property implements idisposable
if (propertyType.Implements(typeof(IDisposable)))
{
CodeMe(
field => setterCode.Call(BuilderTypes.Extensions.GetMethod_TryDisposeInternal(), x => x.Load(field)),
property => setterCode.Call(BuilderTypes.Extensions.GetMethod_TryDisposeInternal(), x => x.Call(property.Getter)));
}
setterCode.If(x => x.Load(CodeBlocks.GetParameter(0)).IsNull(), then =>
{
// Just clear if its clearable
if (propertyType.Implements(BuilderTypes.IList))
{
CodeMe(
field => setterCode.Load(field).Call(BuilderTypes.IList.GetMethod_Clear()).Return(),
property => setterCode.Call(property.Getter).Call(BuilderTypes.IList.GetMethod_Clear()).Return());
}
// Otherwise if the property is not a value type and nullable
else if (!propertyType.IsValueType || propertyType.IsNullable || propertyType.IsArray)
{
CodeMe <CoderBase>(
field => setterCode.SetValue(field, null),
property => setterCode.Call(property.Setter, null));
}
else // otherwise... throw an exception
{
then.ThrowNew(typeof(NotSupportedException), "Value types does not accept null values.");
}
return(then);
});
setterCode.If(x => CodeMe(
field => x.Load(CodeBlocks.GetParameter(0)).Is(field.FieldType),
property => x.Load(CodeBlocks.GetParameter(0)).Is(property.ReturnType)), then =>
CodeMe(
field => then.SetValue(field, CodeBlocks.GetParameter(0)).Return(),
property => then.Call(property.Setter, CodeBlocks.GetParameter(0)).Return()));
if (propertyType.Implements(BuilderTypes.IList))
{
var add = propertyType.GetMethod("Add", 1);
var array = setterDelegateMethod.GetOrCreateVariable(propertyType.ChildType.MakeArray());
setterCode.SetValue(array, CodeBlocks.GetParameter(0));
setterCode.For(array, (x, item, indexer) => CodeMe(
field => x.Load(field).Call(add, item()),
property => x.Call(property.Getter).Call(add, item())));
if (!add.ReturnType.IsVoid)
{
setterCode.Pop();
}
}
else if (propertyType.Implements(typeof(IEnumerable)) || propertyType.IsArray)
{
setterCode.If(x => x.Load(CodeBlocks.GetParameter(0)).Is(typeof(IEnumerable)), then =>
CodeMe(
field => then.SetValue(field, CodeBlocks.GetParameter(0)).Return(),
property => then.Call(property.Setter, CodeBlocks.GetParameter(0)).Return()))
.ThrowNew(typeof(NotSupportedException), "Value does not inherits from IEnumerable");
}
else if (propertyType.IsEnum)
{
// Enums requires special threatment
setterCode.If(x => x.Load(CodeBlocks.GetParameter(0)).Is(typeof(string)),
then =>
{
var stringVariable = setterDelegateMethod.GetOrCreateVariable(typeof(string));
then.SetValue(stringVariable, CodeBlocks.GetParameter(0));
CodeMe( // Cecilator automagically implements a convertion for this
field => then.SetValue(field, stringVariable).Return(),
property => then.Call(property.Setter, stringVariable).Return());
return(then);
});
CodeMe <CoderBase>(
field => setterCode.SetValue(field, CodeBlocks.GetParameter(0)),
property => setterCode.Call(property.Setter, CodeBlocks.GetParameter(0)));
}
else
{
CodeMe <CoderBase>(
field => setterCode.SetValue(field, CodeBlocks.GetParameter(0)),
property => setterCode.Call(property.Setter, CodeBlocks.GetParameter(0)));
}
setterCode.Return().Replace();
}
private static void CreateSetterDelegate(Builder builder, Method setterDelegateMethod, BuilderType propertyType,
Func <ICode, ICode> loadValue, Func <ICode, Func <object>, ICode> setValue)
{
var extensions = new __Extensions();
var iList = new __IList();
var setterCode = setterDelegateMethod.NewCode();
if (propertyType.ParameterlessContructor != null && propertyType.ParameterlessContructor.IsPublic)
{
loadValue(setterCode).IsNull().Then(y => setValue(y, () => setterCode.NewCode().NewObj(propertyType.ParameterlessContructor)));
}
// Only this if the property implements idisposable
if (propertyType.Implements(typeof(IDisposable)))
{
setterCode.Call(extensions.TryDisposeInternal, loadValue(setterCode.NewCode()));
}
setterCode.Load(Crumb.GetParameter(0)).IsNull().Then(x =>
{
// Just clear if its clearable
if (propertyType.Implements(__IList.Type.Fullname))
{
loadValue(x).Callvirt(iList.Clear).Return();
}
// Otherwise if the property is not a value type and nullable
else if (!propertyType.IsValueType || propertyType.IsNullable || propertyType.IsArray)
{
setValue(x, () => null).Return();
}
else // otherwise... throw an exception
{
x.ThrowNew(typeof(NotSupportedException), "Value types does not accept null values.");
}
});
if (propertyType.IsArray)
{
setterCode.Load(Crumb.GetParameter(0)).Is(typeof(IEnumerable))
.Then(x => setValue(x, () => Crumb.GetParameter(0)).Return())
.ThrowNew(typeof(NotSupportedException), "Value does not inherits from IEnumerable");
}
else if (propertyType.Implements(__IList.Type.Fullname) && propertyType.ParameterlessContructor != null)
{
var addRange = propertyType.GetMethod("AddRange", 1, false);
if (addRange == null)
{
var add = propertyType.GetMethod("Add", 1);
var array = setterCode.CreateVariable(propertyType.ChildType.MakeArray());
setterCode.Assign(array).Set(Crumb.GetParameter(0));
setterCode.For(array, (x, item) => loadValue(x).Callvirt(add, item));
if (!add.ReturnType.IsVoid)
{
setterCode.Pop();
}
}
else
{
loadValue(setterCode).Callvirt(addRange, Crumb.GetParameter(0));
}
}
else if (propertyType.IsEnum)
{
// Enums requires special threatment
setterCode.Load(Crumb.GetParameter(0)).Is(typeof(string)).Then(x =>
{
var stringVariable = setterCode.CreateVariable(typeof(string));
setterCode.Assign(stringVariable).Set(Crumb.GetParameter(0));
setValue(setterCode, () => stringVariable).Return();
});
setValue(setterCode, () => Crumb.GetParameter(0));
}
else
{
setValue(setterCode, () => Crumb.GetParameter(0));
}
setterCode.Return().Replace();
}
public static bool IsIDictionary(this BuilderType builderType) => builderType.Implements(typeof(IDictionary));