private static IEnumerable <PropertyPath> MatchPropertyAccessList(
this LambdaExpression lambdaExpression,
Func <Expression, Expression, PropertyPath> propertyMatcher)
{
NewExpression newExpression = lambdaExpression.Body.RemoveConvert() as NewExpression;
if (newExpression != null)
{
ParameterExpression parameterExpression = lambdaExpression.Parameters.Single <ParameterExpression>();
IEnumerable <PropertyPath> propertyPaths = newExpression.Arguments.Select <Expression, PropertyPath>((Func <Expression, PropertyPath>)(a => propertyMatcher(a, (Expression)parameterExpression))).Where <PropertyPath>((Func <PropertyPath, bool>)(p => p != (PropertyPath)null));
if (propertyPaths.Count <PropertyPath>() == newExpression.Arguments.Count <Expression>())
{
if (!newExpression.HasDefaultMembersOnly(propertyPaths))
{
return((IEnumerable <PropertyPath>)null);
}
return(propertyPaths);
}
}
PropertyPath propertyPath = propertyMatcher(lambdaExpression.Body, (Expression)lambdaExpression.Parameters.Single <ParameterExpression>());
if (!(propertyPath != (PropertyPath)null))
{
return((IEnumerable <PropertyPath>)null);
}
return((IEnumerable <PropertyPath>) new PropertyPath[1]
{
propertyPath
});
}
static IEnumerable <PropertyPath> MatchPropertyAccessList(this LambdaExpression lambdaExpression, Func <Expression, Expression, PropertyPath> propertyMatcher)
{
NewExpression newExpression = lambdaExpression.Body.RemoveConvert() as NewExpression;
if (newExpression != null)
{
var parameterExpression = lambdaExpression.Parameters.Single <ParameterExpression>();
IEnumerable <PropertyPath> enumerable =
from a in newExpression.Arguments
select propertyMatcher(a, parameterExpression) into p
where p != null
select p;
if (enumerable.Count() == newExpression.Arguments.Count)
{
if (!newExpression.HasDefaultMembersOnly(enumerable))
{
return(null);
}
return(enumerable);
}
}
var propertyPath = propertyMatcher(lambdaExpression.Body, lambdaExpression.Parameters.Single <ParameterExpression>());
if (propertyPath == null)
{
return(null);
}
return(propertyPath.Cast <PropertyPath>());
}
