protected override Func <object, int, int, bool> BuildCheckIndex()
{
var p_obj = Expression.Parameter(typeof(object));
var p_i1 = Expression.Parameter(typeof(int));
var p_i2 = Expression.Parameter(typeof(int));
Expression access = Expression.MakeMemberAccess(Expression.Convert(p_obj, ObjectType), MemberInfo);
Expression checkindex = Expression.Call(access, MemberType.GetMethod("CheckIndex"), p_i1, p_i2);
return(Expression.Lambda <Func <object, int, int, bool> >(checkindex, p_obj, p_i1, p_i2).Compile());
}
protected override Func <object, int, int, T> BuildGetter()
{
var p_obj = Expression.Parameter(typeof(object));
var p_i1 = Expression.Parameter(typeof(int));
var p_i2 = Expression.Parameter(typeof(int));
var valType = GetValueType();
Expression access = Expression.MakeMemberAccess(Expression.Convert(p_obj, ObjectType), MemberInfo);
Expression getter = Expression.Call(access, MemberType.GetMethod("Get"), p_i1, p_i2);
return(Expression.Lambda <Func <object, int, int, T> >(
ValueType.IsAssignableFrom(valType) ?
getter : Expression.Convert(getter, ValueType),
p_obj, p_i1, p_i2
).Compile());
}
protected override Action <object, int, int, T> BuildSetter()
{
var p_obj = Expression.Parameter(typeof(object));
var p_i1 = Expression.Parameter(typeof(int));
var p_i2 = Expression.Parameter(typeof(int));
var p_val = Expression.Parameter(ValueType);
var valType = GetValueType();
Expression param = p_val;
Expression access = Expression.MakeMemberAccess(Expression.Convert(p_obj, ObjectType), MemberInfo);
Expression val = valType.IsAssignableFrom(ValueType) ?
param : Expression.Convert(p_val, valType);
Expression setter = Expression.Call(access, MemberType.GetMethod("Set"), p_i1, p_i2, val);
return(Expression.Lambda <Action <object, int, int, T> >(setter,
p_obj, p_i1, p_i2, p_val
).Compile());
}