static Variant GetDefaultValue(ISchemaField schemaField)
{
var defaultValue = schemaField.GetDefaultValue();
var variant = new Variant();
if (defaultValue == null)
{
if (!schemaField.GetSchemaType().IsBondNullable())
{
variant.nothing = true;
}
}
else
{
var alias = defaultValue.GetType() != schemaField.GetSchemaType();
switch (schemaField.GetSchemaType().GetBondDataType())
{
case BondDataType.BT_BOOL:
variant.uint_value = (bool)defaultValue ? 1ul : 0ul;
break;
case BondDataType.BT_UINT8:
case BondDataType.BT_UINT16:
case BondDataType.BT_UINT32:
case BondDataType.BT_UINT64:
variant.uint_value = alias ? 0 : Convert.ToUInt64(defaultValue);
break;
case BondDataType.BT_INT8:
case BondDataType.BT_INT16:
case BondDataType.BT_INT32:
case BondDataType.BT_INT64:
variant.int_value = alias ? 0 : Convert.ToInt64(defaultValue);
break;
case BondDataType.BT_FLOAT:
variant.double_value = alias ? 0 : Convert.ToSingle(defaultValue);
break;
case BondDataType.BT_DOUBLE:
variant.double_value = alias ? 0 : Convert.ToDouble(defaultValue);
break;
case BondDataType.BT_STRING:
variant.string_value = alias ? string.Empty : (string)defaultValue;
break;
case BondDataType.BT_WSTRING:
variant.wstring_value = (string)defaultValue;
break;
}
}
return(variant);
}
internal static object GetDefaultValue(this ISchemaField schemaField)
{
var declaringType = schemaField.DeclaringType;
var declaringTypeInfo = declaringType.GetTypeInfo();
var defaultAttribute = schemaField.GetAttribute <DefaultAttribute>();
// For interfaces determine member default value from the type and/or DefaultAttribute
if (declaringTypeInfo.IsInterface)
{
var schemaType = schemaField.GetSchemaType();
if (defaultAttribute != null)
{
if (defaultAttribute.Value == null)
{
return(null);
}
if (schemaType.IsBondNullable() || schemaType.IsBondStruct() || schemaType.IsBondContainer())
{
InvalidDefaultAttribute(schemaField, defaultAttribute.Value);
}
return(defaultAttribute.Value);
}
else
{
if (schemaType.IsBondNullable())
{
return(null);
}
if (schemaType.IsBondStruct() || schemaType.IsBonded() || schemaType.IsBondContainer() || schemaType.IsBondBlob())
{
return(Empty);
}
if (schemaType.IsBondString())
{
return(string.Empty);
}
return(Activator.CreateInstance(schemaField.MemberType));
}
}
if (defaultAttribute != null)
{
InvalidDefaultAttribute(schemaField, defaultAttribute.Value);
}
// For classes create a default instance and get the actual default value of the member
var objectType = declaringType.GetObjectType();
var objectMemeber = objectType.GetSchemaFields().Single(m => m.Id == schemaField.Id);
var obj = Activator.CreateInstance(objectType);
var defaultValue = objectMemeber.GetValue(obj);
return(defaultValue);
}
internal static object GetDefaultValue(this ISchemaField schemaField)
{
var declaringType = schemaField.DeclaringType;
var declaringTypeInfo = declaringType.GetTypeInfo();
var defaultAttribute = schemaField.GetAttribute <DefaultAttribute>();
// For interfaces determine member default value from the type and/or DefaultAttribute
if (declaringTypeInfo.IsInterface)
{
var schemaType = schemaField.GetSchemaType();
if (defaultAttribute != null)
{
if (defaultAttribute.Value == null)
{
return(null);
}
if (schemaType.IsBondNullable() || schemaType.IsBondStruct() || schemaType.IsBondContainer())
{
InvalidDefaultAttribute(schemaField, defaultAttribute.Value);
}
return(defaultAttribute.Value);
}
else
{
if (schemaType.IsBondNullable())
{
return(null);
}
if (schemaType.IsBondStruct() || schemaType.IsBondContainer())
{
return(Empty);
}
throw new InvalidOperationException(string.Format(
CultureInfo.InvariantCulture,
"Default value for property {0}.{1} must be specified using the DefaultAttribute",
schemaField.DeclaringType.Name,
schemaField.Name));
}
}
if (defaultAttribute != null)
{
InvalidDefaultAttribute(schemaField, defaultAttribute.Value);
}
// For classes create a default instance and get the actual default value of the member
var objectType = declaringType.GetObjectType();
var objectMemeber = objectType.GetSchemaFields().Single(m => m.Id == schemaField.Id);
var obj = Activator.CreateInstance(objectType);
var defaultValue = objectMemeber.GetValue(obj);
return(defaultValue);
}
Expression Field(ITransform transform, Expression structVar, UInt16 id, ISchemaField schemaField, IField field)
{
var fieldSchemaType = schemaField.GetSchemaType();
var fieldId = Expression.Constant(id);
var fieldType = Expression.Constant(fieldSchemaType.GetBondDataType());
var fieldValue = DataExpression.PropertyOrField(structVar, schemaField.Name);
var parser = new ObjectParser(this, fieldValue, fieldSchemaType);
var processField = field != null
? field.Value(parser, fieldType)
: transform.UnknownField(parser, fieldType, fieldId) ?? Expression.Empty();
var omitField = field != null
? field.Omitted : Expression.Empty();
Expression cannotOmit;
if (fieldSchemaType.IsBondStruct() || fieldSchemaType.IsBonded() || schemaField.GetModifier() != Modifier.Optional)
{
cannotOmit = Expression.Constant(true);
}
else
{
var defaultValue = schemaField.GetDefaultValue();
if (fieldSchemaType.IsBondBlob())
{
cannotOmit = Expression.NotEqual(
typeAlias.Convert(fieldValue, fieldSchemaType),
Expression.Default(typeof(ArraySegment <byte>)));
}
else if (fieldSchemaType.IsBondContainer())
{
cannotOmit = defaultValue == null
? Expression.NotEqual(fieldValue, Expression.Constant(null))
: Expression.NotEqual(ContainerCount(fieldValue), Expression.Constant(0));
}
else
{
cannotOmit = Expression.NotEqual(fieldValue, Expression.Constant(defaultValue));
}
}
return(PrunedExpression.IfThenElse(cannotOmit, processField, omitField));
}
Expression Field(ITransform transform, Expression structVar, UInt16 id, ISchemaField schemaField, IField field)
{
var fieldSchemaType = schemaField.GetSchemaType();
var fieldId = Expression.Constant(id);
var fieldType = Expression.Constant(fieldSchemaType.GetBondDataType());
var fieldValue = DataExpression.PropertyOrField(structVar, schemaField.Name);
var parser = new ObjectParser(this, fieldValue, fieldSchemaType);
var processField = field != null
? field.Value(parser, fieldType)
: transform.UnknownField(parser, fieldType, fieldId) ?? Expression.Empty();
var omitField = field != null
? field.Omitted : Expression.Empty();
Expression cannotOmit;
if (fieldSchemaType.IsBondStruct() || fieldSchemaType.IsBonded() || schemaField.GetModifier() != Modifier.Optional)
{
cannotOmit = Expression.Constant(true);
}
else
{
var defaultValue = schemaField.GetDefaultValue();
if (fieldSchemaType.IsBondBlob())
{
cannotOmit = Expression.NotEqual(
typeAlias.Convert(fieldValue, fieldSchemaType),
Expression.Default(typeof(ArraySegment<byte>)));
}
else if (fieldSchemaType.IsBondContainer())
{
cannotOmit = defaultValue == null
? Expression.NotEqual(fieldValue, Expression.Constant(null))
: Expression.NotEqual(ContainerCount(fieldValue), Expression.Constant(0));
}
else
{
cannotOmit = Expression.NotEqual(fieldValue, Expression.Constant(defaultValue));
}
}
return PrunedExpression.IfThenElse(cannotOmit, processField, omitField);
}
static Variant GetDefaultValue(ISchemaField schemaField)
{
var defaultValue = schemaField.GetDefaultValue();
var variant = new Variant();
if (defaultValue == null)
{
if (!schemaField.GetSchemaType().IsBondNullable())
variant.nothing = true;
}
else
{
var alias = defaultValue.GetType() != schemaField.GetSchemaType();
switch (schemaField.GetSchemaType().GetBondDataType())
{
case BondDataType.BT_BOOL:
variant.uint_value = (bool) defaultValue ? 1ul : 0ul;
break;
case BondDataType.BT_UINT8:
case BondDataType.BT_UINT16:
case BondDataType.BT_UINT32:
case BondDataType.BT_UINT64:
variant.uint_value = alias ? 0 : Convert.ToUInt64(defaultValue);
break;
case BondDataType.BT_INT8:
case BondDataType.BT_INT16:
case BondDataType.BT_INT32:
case BondDataType.BT_INT64:
variant.int_value = alias ? 0 : Convert.ToInt64(defaultValue);
break;
case BondDataType.BT_FLOAT:
variant.double_value = alias ? 0 : Convert.ToSingle(defaultValue);
break;
case BondDataType.BT_DOUBLE:
variant.double_value = alias ? 0 : Convert.ToDouble(defaultValue);
break;
case BondDataType.BT_STRING:
variant.string_value = alias ? string.Empty : (string)defaultValue;
break;
case BondDataType.BT_WSTRING:
variant.wstring_value = (string)defaultValue;
break;
}
}
return variant;
}
Expression Field(ITransform transform, Expression structVar, UInt16 id, ISchemaField schemaField, IField field)
{
var fieldSchemaType = schemaField.GetSchemaType();
var fieldId = Expression.Constant(id);
var fieldType = Expression.Constant(fieldSchemaType.GetBondDataType());
var fieldValue = DataExpression.PropertyOrField(structVar, schemaField.Name);
ObjectParser parser = null;
Expression blob = null;
ParameterExpression convertedBlob = null;
// To avoid calling Convert multiple times on the same aliased Blob
// we must construct a new ObjectParser with the expected return type of
// of Convert
if (fieldSchemaType.IsBondBlob())
{
blob = typeAlias.Convert(fieldValue, fieldSchemaType);
convertedBlob = Expression.Variable(blob.Type, "convertedBlob");
if (blob.Type != fieldValue.Type)
{
parser = new ObjectParser(this, convertedBlob, convertedBlob.Type);
}
}
parser = parser ?? new ObjectParser(this, fieldValue, fieldSchemaType);
var processField = field != null
? field.Value(parser, fieldType)
: transform.UnknownField(parser, fieldType, fieldId) ?? Expression.Empty();
var omitField = field != null
? field.Omitted : Expression.Empty();
Expression cannotOmit;
if (fieldSchemaType.IsBondStruct() || fieldSchemaType.IsBonded() || schemaField.GetModifier() != Modifier.Optional)
{
cannotOmit = Expression.Constant(true);
if (fieldSchemaType.IsBondBlob())
{
return(Expression.Block(
new[] { convertedBlob },
Expression.Assign(convertedBlob, blob),
processField));
}
}
else
{
var defaultValue = schemaField.GetDefaultValue();
if (fieldSchemaType.IsBondBlob())
{
var notEqual = Expression.NotEqual(
convertedBlob,
Expression.Default(typeof(ArraySegment <byte>)));
return(Expression.Block(
new[] { convertedBlob },
Expression.Assign(convertedBlob, blob),
PrunedExpression.IfThenElse(notEqual, processField, omitField)));
}
else if (fieldSchemaType.IsBondContainer())
{
cannotOmit = defaultValue == null
? Expression.NotEqual(fieldValue, Expression.Constant(null))
: Expression.NotEqual(ContainerCount(fieldValue), Expression.Constant(0));
}
else
{
cannotOmit = Expression.NotEqual(fieldValue, Expression.Constant(defaultValue));
}
}
return(PrunedExpression.IfThenElse(cannotOmit, processField, omitField));
}
