private Expression GetCondition(Expression value, IMemberMapperData mapperData)
{
var nestedAccessChecks = mapperData.GetNestedAccessChecksFor(value);
if (nestedAccessChecks == null)
{
return(null);
}
if (IsNotOptionalEntityMemberId(mapperData))
{
return(nestedAccessChecks);
}
var sourceMemberValue = SourceMember.GetQualifiedAccess(mapperData);
var sourceValueType = sourceMemberValue.Type.GetNonNullableType();
if (!sourceValueType.IsNumeric())
{
return(nestedAccessChecks);
}
if (sourceMemberValue.Type.IsNullableType())
{
sourceMemberValue = sourceMemberValue.GetNullableValueAccess();
}
var zero = 0.ToConstantExpression(sourceValueType);
var sourceValueNonZero = Expression.NotEqual(sourceMemberValue, zero);
return(Expression.AndAlso(nestedAccessChecks, sourceValueNonZero));
}
public Expression GetConditionOrNull(IMemberMapperData mapperData)
{
if (!HasCondition)
{
return(null);
}
var condition = _conditionLambda.GetBody(mapperData);
if (_negateCondition)
{
condition = condition.Negate();
}
var conditionNestedAccessesChecks = mapperData.GetNestedAccessChecksFor(condition);
if (conditionNestedAccessesChecks != null)
{
condition = Expression.AndAlso(conditionNestedAccessesChecks, condition);
}
return(condition);
}