private HqlExpression GetExpressionForBooleanEquality(Expression @operator, HqlExpression original)
{
//When the expression is a constant then use the constant
var operandEx = @operator as ConstantExpression;
if (operandEx != null)
{
NamedParameter namedParameter;
if (_parameters.ConstantToParameterMap.TryGetValue(operandEx, out namedParameter))
{
_parameters.RequiredHqlParameters.Add(new NamedParameterDescriptor(namedParameter.Name, null, false));
return(_hqlTreeBuilder.Parameter(namedParameter.Name).AsExpression());
}
return(_hqlTreeBuilder.Constant(operandEx.Value));
}
//When the expression is a member-access not nullable then use the HbmDot
var memberAccessExpression = @operator as MemberExpression;
if (ExpressionType.MemberAccess.Equals(@operator.NodeType) && memberAccessExpression != null && typeof(bool).Equals(memberAccessExpression.Type))
{
// this case make the difference when the property "Value" of a nullable type is used (ignore the null since the user is explicity checking the Value)
return(original);
}
//When the expression is a member-access nullable then use the "case" clause to transform it to boolean (to use always .NET meaning instead leave the DB the behavior for null)
//When the expression is a complex-expression then use the "case" clause to transform it to boolean
return(_hqlTreeBuilder.Case(new[] { _hqlTreeBuilder.When(original, _hqlTreeBuilder.Constant(true)) }, _hqlTreeBuilder.Constant(false)));
}
protected HqlTreeNode VisitNhSum(NhSumExpression expression)
{
var sum = _hqlTreeBuilder.Sum(VisitExpression(expression.Expression).AsExpression());
var cast = _hqlTreeBuilder.Cast(sum, expression.Type);
var coalesce = _hqlTreeBuilder.Coalesce(cast, _hqlTreeBuilder.Constant(0));
return(coalesce);
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
return(treeBuilder.Like(
visitor.Visit(targetObject).AsExpression(),
treeBuilder.Concat(
treeBuilder.Constant("%"),
visitor.Visit(arguments[0]).AsExpression(),
treeBuilder.Constant("%"))));
}
protected HqlTreeNode VisitConstantExpression(ConstantExpression expression)
{
if (expression.Value != null)
{
IEntityNameProvider entityName = expression.Value as IEntityNameProvider;
if (entityName != null)
{
return(_hqlTreeBuilder.Ident(entityName.EntityName));
}
}
NamedParameter namedParameter;
if (_parameters.ConstantToParameterMap.TryGetValue(expression, out namedParameter))
{
_parameters.RequiredHqlParameters.Add(new NamedParameterDescriptor(namedParameter.Name, null, false));
var parameter = _hqlTreeBuilder.Parameter(namedParameter.Name).AsExpression();
// SQLite driver binds decimal parameters to text, which can cause unexpected results in arithmetic operations.
return(_parameters.SessionFactory.Dialect.IsDecimalStoredAsFloatingPointNumber && expression.Type.UnwrapIfNullable() == typeof(decimal)
? _hqlTreeBuilder.TransparentCast(parameter, expression.Type)
: parameter);
}
return(_hqlTreeBuilder.Constant(expression.Value));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
string trimWhere;
if (method.Name == "TrimStart")
{
trimWhere = "leading";
}
else if (method.Name == "TrimEnd")
{
trimWhere = "trailing";
}
else
{
trimWhere = "both";
}
var trimChars = ExtractTrimChars(arguments);
if (string.IsNullOrEmpty(trimChars))
{
return(treeBuilder.MethodCall("trim", treeBuilder.Ident(trimWhere), treeBuilder.Ident("from"), visitor.Visit(targetObject).AsExpression()));
}
else
{
return(treeBuilder.MethodCall("trim", treeBuilder.Ident(trimWhere), treeBuilder.Constant(trimChars), treeBuilder.Ident("from"), visitor.Visit(targetObject).AsExpression()));
}
}
public override HqlTreeNode BuildHql(
MethodInfo method,
Expression targetObject,
ReadOnlyCollection <Expression> arguments,
HqlTreeBuilder treeBuilder,
IHqlExpressionVisitor visitor)
{
var left = treeBuilder.Cast(visitor.Visit(targetObject).AsExpression(), typeof(string));
var right = treeBuilder.Cast(visitor.Visit(arguments.First()).AsExpression(), typeof(string));
var leftSubstring = treeBuilder.MethodCall("substring", left, treeBuilder.Constant(4));
var rightSubstring = treeBuilder.MethodCall("substring", right, treeBuilder.Constant(4));
var equals = treeBuilder.Equality(leftSubstring, rightSubstring);
return(equals);
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
var argsCount = arguments.Count;
if (LogIgnoredStringComparisonParameter(method, MethodWithComparer1, MethodWithComparer2))
{
//StringComparison is last argument, just ignore it
argsCount--;
}
HqlMethodCall locate;
if (argsCount == 1)
{
locate = treeBuilder.MethodCall("locate",
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(targetObject).AsExpression()); //,
//treeBuilder.Constant(0));
}
else
{
var start = treeBuilder.Add(visitor.Visit(arguments[1]).AsExpression(), treeBuilder.Constant(1));
locate = treeBuilder.MethodCall("locate",
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(targetObject).AsExpression(),
start);
}
return(treeBuilder.Subtract(locate, treeBuilder.Constant(1)));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
var expression = visitor.Visit(targetObject).AsExpression();
var index = treeBuilder.Add(visitor.Visit(arguments[0]).AsExpression(), treeBuilder.Constant(1));
return(treeBuilder.MethodCall("substring", expression, index, treeBuilder.Constant(1)));
}
private HqlTreeNode BuildFromArray(Array valueArray, HqlTreeBuilder treeBuilder)
{
var elementType = valueArray.GetType().GetElementType();
if (!elementType.IsValueType && elementType != typeof(string))
{
throw new ArgumentException("Only primitives and strings can be used");
}
Type enumUnderlyingType = elementType.IsEnum ? Enum.GetUnderlyingType(elementType) : null;
var variants = new HqlExpression[valueArray.Length];
for (int index = 0; index < valueArray.Length; index++)
{
var variant = valueArray.GetValue(index);
var val = variant;
if (elementType.IsEnum)
{
val = Convert.ChangeType(variant, enumUnderlyingType);
}
variants[index] = treeBuilder.Constant(val);
}
return(treeBuilder.ExpressionSubTreeHolder(variants));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
LogIgnoredStringComparisonParameter(method, MethodWithComparer);
return(treeBuilder.Like(
visitor.Visit(targetObject).AsExpression(),
treeBuilder.Concat(
visitor.Visit(arguments[0]).AsExpression(),
treeBuilder.Constant("%"))));
}
public override HqlExpression BuildHql(HqlExpression expression, ReadOnlyCollection <HqlExpression> arguments, HqlTreeBuilder treeBuilder)
{
HqlExpression factor = treeBuilder.Constant(_factor);
if (_transformer != null)
{
return(treeBuilder.Multiply(treeBuilder.Cast(_transformer.BuildHql(expression, arguments, treeBuilder), typeof(long)), factor));
}
return(treeBuilder.Multiply(treeBuilder.Cast(expression, typeof(long)), factor));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
var numberOfDecimals = arguments.Count == 2
? visitor.Visit(arguments[1]).AsExpression()
: treeBuilder.Constant(0);
return(treeBuilder.TransparentCast(
treeBuilder.MethodCall("round", visitor.Visit(arguments[0]).AsExpression(), numberOfDecimals),
method.ReturnType));
}
private static HqlExpression GetRhs(MethodInfo method, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
if (arguments.Count > 0)
{
return(visitor.Visit(arguments[0]).ToArithmeticExpression());
}
var returnType = method.ReturnType;
var instance = returnType.IsValueType ? Activator.CreateInstance(returnType) : null;
return(treeBuilder.Constant(instance));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
if (arguments.Count == 1)
{
return(treeBuilder.MethodCall("substring", visitor.Visit(targetObject).AsExpression(),
treeBuilder.Constant(0),
visitor.Visit(arguments[0]).AsExpression()));
}
return(treeBuilder.MethodCall("substring", visitor.Visit(targetObject).AsExpression(),
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression()));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
// Instance a.CompareTo(b) or static string.Compare(a, b)?
Expression lhs = arguments.Count == 1 ? targetObject : arguments[0];
Expression rhs = arguments.Count == 1 ? arguments[0] : arguments[1];
HqlExpression lhs1 = visitor.Visit(lhs).AsExpression();
HqlExpression rhs1 = visitor.Visit(rhs).AsExpression();
HqlExpression lhs2 = visitor.Visit(lhs).AsExpression();
HqlExpression rhs2 = visitor.Visit(rhs).AsExpression();
// CASE WHEN (table.[Name] = N'Foo') THEN 0
// WHEN (table.[Name] > N'Foo') THEN 1
// ELSE -1 END
return(treeBuilder.Case(
new[]
{
treeBuilder.When(treeBuilder.Equality(lhs1, rhs1), treeBuilder.Constant(0)),
treeBuilder.When(treeBuilder.GreaterThan(lhs2, rhs2), treeBuilder.Constant(1))
},
treeBuilder.Constant(-1)));
}
public override HqlTreeNode BuildHql(
MethodInfo method,
Expression targetObject,
ReadOnlyCollection <Expression> arguments,
HqlTreeBuilder treeBuilder,
IHqlExpressionVisitor visitor)
{
if (method == _nextDouble)
{
return(treeBuilder.MethodCall(_randomFunctionName));
}
switch (arguments.Count)
{
case 0:
return(treeBuilder.Cast(
treeBuilder.MethodCall(
_floorFunctionName,
treeBuilder.Multiply(
treeBuilder.MethodCall(_randomFunctionName),
treeBuilder.Constant(int.MaxValue))),
typeof(int)));
case 1:
return(treeBuilder.Cast(
treeBuilder.MethodCall(
_floorFunctionName,
treeBuilder.Multiply(
treeBuilder.MethodCall(_randomFunctionName),
visitor.Visit(arguments[0]).AsExpression())),
typeof(int)));
case 2:
var minValue = visitor.Visit(arguments[0]).AsExpression();
var maxValue = visitor.Visit(arguments[1]).AsExpression();
return(treeBuilder.Cast(
treeBuilder.Add(
treeBuilder.MethodCall(
_floorFunctionName,
treeBuilder.Multiply(
treeBuilder.MethodCall(_randomFunctionName),
treeBuilder.Subtract(maxValue, minValue))),
minValue),
typeof(int)));
default:
throw new NotSupportedException();
}
}
public HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments,
HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
if (arguments.Count == 2)
{
return(treeBuilder.Like(
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression()));
}
if (arguments[2].NodeType == ExpressionType.Constant)
{
var escapeCharExpression = (ConstantExpression)arguments[2];
return(treeBuilder.Like(
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression(),
treeBuilder.Constant(escapeCharExpression.Value)));
}
throw new ArgumentException("The escape character must be specified as literal value or a string variable");
}
private HqlTreeNode BuildFromArray(IEnumerable valueArray, HqlTreeBuilder treeBuilder, Type elementType)
{
Type enumUnderlyingType = elementType.IsEnum ? Enum.GetUnderlyingType(elementType) : null;
IList <HqlTreeNode> variants = new List <HqlTreeNode>();
foreach (object variant in valueArray)
{
object val = variant;
if (elementType.IsEnum)
{
val = Convert.ChangeType(variant, enumUnderlyingType);
}
HqlConstant hqlConstant = treeBuilder.Constant(val);
variants.Add(hqlConstant);
}
return(treeBuilder.ExpressionSubTreeHolder(variants));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
HqlMethodCall locate;
if (arguments.Count == 1)
{
locate = treeBuilder.MethodCall("locate",
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(targetObject).AsExpression()); //,
//treeBuilder.Constant(0));
}
else
{
var start = treeBuilder.Add(visitor.Visit(arguments[1]).AsExpression(), treeBuilder.Constant(1));
locate = treeBuilder.MethodCall("locate",
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(targetObject).AsExpression(),
start);
}
return(treeBuilder.Subtract(locate, treeBuilder.Constant(1)));
}
protected HqlTreeNode VisitConstantExpression(ConstantExpression expression)
{
if (expression.Value != null)
{
IEntityNameProvider entityName = expression.Value as IEntityNameProvider;
if (entityName != null)
{
return(_hqlTreeBuilder.Ident(entityName.EntityName));
}
}
NamedParameter namedParameter;
if (_parameters.ConstantToParameterMap.TryGetValue(expression, out namedParameter))
{
_parameters.RequiredHqlParameters.Add(new NamedParameterDescriptor(namedParameter.Name, null, false));
return(_hqlTreeBuilder.Parameter(namedParameter.Name).AsExpression());
}
return(_hqlTreeBuilder.Constant(expression.Value));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
string trimWhere;
if (method.Name == "TrimStart")
{
trimWhere = "leading";
}
else if (method.Name == "TrimEnd")
{
trimWhere = "trailing";
}
else
{
trimWhere = "both";
}
string trimChars = "";
if (method.GetParameters().Length > 0)
{
foreach (char c in (char[])((ConstantExpression)arguments[0]).Value)
{
trimChars += c;
}
}
if (trimChars == "")
{
return(treeBuilder.MethodCall("trim", treeBuilder.Ident(trimWhere), treeBuilder.Ident("from"), visitor.Visit(targetObject).AsExpression()));
}
else
{
return(treeBuilder.MethodCall("trim", treeBuilder.Ident(trimWhere), treeBuilder.Constant(trimChars), treeBuilder.Ident("from"), visitor.Visit(targetObject).AsExpression()));
}
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
return(treeBuilder.Constant(1));
}
protected HqlTreeNode VisitBinaryExpression(BinaryExpression expression)
{
var lhs = VisitExpression(expression.Left).AsExpression();
var rhs = VisitExpression(expression.Right).AsExpression();
switch (expression.NodeType)
{
case ExpressionType.Equal:
// Need to check for boolean equality
if (lhs is HqlBooleanExpression || rhs is HqlBooleanExpression)
{
lhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(lhs, _hqlTreeBuilder.Constant(true)) },
_hqlTreeBuilder.Constant(false));
rhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(rhs, _hqlTreeBuilder.Constant(true)) },
_hqlTreeBuilder.Constant(false));
return(_hqlTreeBuilder.Equality(lhs, rhs));
}
// Check for nulls on left or right.
if (expression.Right is ConstantExpression &&
expression.Right.Type.IsNullableOrReference() &&
((ConstantExpression)expression.Right).Value == null)
{
return(_hqlTreeBuilder.IsNull(lhs));
}
if (expression.Left is ConstantExpression &&
expression.Left.Type.IsNullableOrReference() &&
((ConstantExpression)expression.Left).Value == null)
{
return(_hqlTreeBuilder.IsNull(rhs));
}
// Nothing was null, use standard equality.
return(_hqlTreeBuilder.Equality(lhs, rhs));
case ExpressionType.NotEqual:
// Need to check for boolean in-equality
if (lhs is HqlBooleanExpression || rhs is HqlBooleanExpression)
{
lhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(lhs, _hqlTreeBuilder.Constant(true)) },
_hqlTreeBuilder.Constant(false));
rhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(rhs, _hqlTreeBuilder.Constant(true)) },
_hqlTreeBuilder.Constant(false));
return(_hqlTreeBuilder.Inequality(lhs, rhs));
}
// Check for nulls on left or right.
if (expression.Right is ConstantExpression &&
expression.Right.Type.IsNullableOrReference() &&
((ConstantExpression)expression.Right).Value == null)
{
return(_hqlTreeBuilder.IsNotNull(lhs));
}
if (expression.Left is ConstantExpression &&
expression.Left.Type.IsNullableOrReference() &&
((ConstantExpression)expression.Left).Value == null)
{
return(_hqlTreeBuilder.IsNotNull(rhs));
}
// Nothing was null, use standard inequality.
return(_hqlTreeBuilder.Inequality(lhs, rhs));
case ExpressionType.And:
return(_hqlTreeBuilder.BitwiseAnd(lhs, rhs));
case ExpressionType.AndAlso:
return(_hqlTreeBuilder.BooleanAnd(lhs.AsBooleanExpression(), rhs.AsBooleanExpression()));
case ExpressionType.Or:
return(_hqlTreeBuilder.BitwiseOr(lhs, rhs));
case ExpressionType.OrElse:
return(_hqlTreeBuilder.BooleanOr(lhs.AsBooleanExpression(), rhs.AsBooleanExpression()));
case ExpressionType.Add:
return(_hqlTreeBuilder.Add(lhs, rhs));
case ExpressionType.Subtract:
return(_hqlTreeBuilder.Subtract(lhs, rhs));
case ExpressionType.Multiply:
return(_hqlTreeBuilder.Multiply(lhs, rhs));
case ExpressionType.Divide:
return(_hqlTreeBuilder.Divide(lhs, rhs));
case ExpressionType.LessThan:
return(_hqlTreeBuilder.LessThan(lhs, rhs));
case ExpressionType.LessThanOrEqual:
return(_hqlTreeBuilder.LessThanOrEqual(lhs, rhs));
case ExpressionType.GreaterThan:
return(_hqlTreeBuilder.GreaterThan(lhs, rhs));
case ExpressionType.GreaterThanOrEqual:
return(_hqlTreeBuilder.GreaterThanOrEqual(lhs, rhs));
case ExpressionType.Coalesce:
return(_hqlTreeBuilder.Coalesce(lhs, rhs));
}
throw new InvalidOperationException();
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression expression, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
return(treeBuilder.MethodCall("truncate", visitor.Visit(arguments[0]).AsExpression(), treeBuilder.Constant(0)));
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection <Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
var stringExpr = visitor.Visit(targetObject).AsExpression();
var start = treeBuilder.Add(visitor.Visit(arguments[0]).AsExpression(), treeBuilder.Constant(1));
if (arguments.Count == 1)
{
return(treeBuilder.MethodCall("substring", stringExpr, start));
}
var length = visitor.Visit(arguments[1]).AsExpression();
return(treeBuilder.MethodCall("substring", stringExpr, start, length));
}
protected HqlTreeNode VisitBinaryExpression(BinaryExpression expression)
{
var lhs = VisitExpression(expression.Left).AsExpression();
var rhs = VisitExpression(expression.Right).AsExpression();
switch (expression.NodeType)
{
case ExpressionType.Equal:
// Need to check for boolean equality
if (lhs is HqlBooleanExpression || rhs is HqlBooleanExpression)
{
lhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(lhs, _hqlTreeBuilder.Constant(1)) },
_hqlTreeBuilder.Constant(0));
rhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(rhs, _hqlTreeBuilder.Constant(1)) },
_hqlTreeBuilder.Constant(0));
return(_hqlTreeBuilder.Equality(lhs, rhs));
}
// Also check for nullability
if (expression.Left.Type.IsNullableOrReference() || expression.Right.Type.IsNullableOrReference())
{
// TODO - yuck. This clone is needed because the AST tree nodes are not immutable,
// and sharing nodes between multiple branches will cause issues in the hqlSqlWalker phase -
// a node, x, gets visited during the walk and updated to refer to a real property. Later in
// the walk, x get revisited (since we copied it here), but now the type doesn't match what
// the parser expects. So we can't share. Implementing Clone() on HqlTreeNode would be better
// that doing a full visit of the Expression tree. Allowing shared nodes in the AST would be better
// still, but might be more work
var lhs2 = VisitExpression(expression.Left).AsExpression();
var rhs2 = VisitExpression(expression.Right).AsExpression();
return(_hqlTreeBuilder.BooleanOr(
_hqlTreeBuilder.BooleanAnd(
_hqlTreeBuilder.IsNull(lhs),
_hqlTreeBuilder.IsNull(rhs)),
_hqlTreeBuilder.Equality(lhs2, rhs2)
));
}
return(_hqlTreeBuilder.Equality(lhs, rhs));
case ExpressionType.NotEqual:
// Need to check for boolean in-equality
if (lhs is HqlBooleanExpression || rhs is HqlBooleanExpression)
{
lhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(lhs, _hqlTreeBuilder.Constant(1)) },
_hqlTreeBuilder.Constant(0));
rhs =
_hqlTreeBuilder.Case(
new [] { _hqlTreeBuilder.When(rhs, _hqlTreeBuilder.Constant(1)) },
_hqlTreeBuilder.Constant(0));
return(_hqlTreeBuilder.Inequality(lhs, rhs));
}
// Also check for nullability
if (expression.Left.Type.IsNullableOrReference() || expression.Right.Type.IsNullableOrReference())
{
var lhs2 = VisitExpression(expression.Left).AsExpression();
var rhs2 = VisitExpression(expression.Right).AsExpression();
var lhs3 = VisitExpression(expression.Left).AsExpression();
var rhs3 = VisitExpression(expression.Right).AsExpression();
return
(_hqlTreeBuilder.BooleanOr(
_hqlTreeBuilder.BooleanOr(
_hqlTreeBuilder.BooleanAnd(
_hqlTreeBuilder.IsNull(lhs),
_hqlTreeBuilder.IsNotNull(rhs)),
_hqlTreeBuilder.BooleanAnd(
_hqlTreeBuilder.IsNotNull(lhs2),
_hqlTreeBuilder.IsNull(rhs2))
),
_hqlTreeBuilder.Inequality(lhs3, rhs3)));
}
return(_hqlTreeBuilder.Inequality(lhs, rhs));
case ExpressionType.And:
return(_hqlTreeBuilder.BitwiseAnd(lhs, rhs));
case ExpressionType.AndAlso:
return(_hqlTreeBuilder.BooleanAnd(lhs.AsBooleanExpression(), rhs.AsBooleanExpression()));
case ExpressionType.Or:
return(_hqlTreeBuilder.BitwiseOr(lhs, rhs));
case ExpressionType.OrElse:
return(_hqlTreeBuilder.BooleanOr(lhs.AsBooleanExpression(), rhs.AsBooleanExpression()));
case ExpressionType.Add:
return(_hqlTreeBuilder.Add(lhs, rhs));
case ExpressionType.Subtract:
return(_hqlTreeBuilder.Subtract(lhs, rhs));
case ExpressionType.Multiply:
return(_hqlTreeBuilder.Multiply(lhs, rhs));
case ExpressionType.Divide:
return(_hqlTreeBuilder.Divide(lhs, rhs));
case ExpressionType.LessThan:
return(_hqlTreeBuilder.LessThan(lhs, rhs));
case ExpressionType.LessThanOrEqual:
return(_hqlTreeBuilder.LessThanOrEqual(lhs, rhs));
case ExpressionType.GreaterThan:
return(_hqlTreeBuilder.GreaterThan(lhs, rhs));
case ExpressionType.GreaterThanOrEqual:
return(_hqlTreeBuilder.GreaterThanOrEqual(lhs, rhs));
}
throw new InvalidOperationException();
}
public override HqlExpression Convert(HqlTreeBuilder treeBuilder, HqlExpression input)
{
return(treeBuilder.Multiply(input, treeBuilder.Constant(_factor)));
}