protected MethodInfo GetOverloadedBinaryOperator(string name, object operation)
{
var leftType = MyLeftChild.ResultType;
var rightType = MyRightChild.ResultType;
var binder = new BinaryOperatorBinder(leftType, rightType);
// If both arguments are of the same type, pick either as the owner type
if (object.ReferenceEquals(leftType, rightType)) {
return Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType);
}
// Get the operator for both types
MethodInfo leftMethod = null;
MethodInfo rightMethod = null;
leftMethod = Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType);
rightMethod = Utility.GetOverloadedOperator(name, rightType, binder, leftType, rightType);
// Pick the right one
if (leftMethod == null & rightMethod == null) {
// No operator defined for either
return null;
} else if (leftMethod == null) {
return rightMethod;
} else if (rightMethod == null) {
return leftMethod;
} else {
// Ambiguous call
base.ThrowAmbiguousCallException(leftType, rightType, operation);
return null;
}
}
/// <summary>
/// Promote the left and right operand types
/// </summary>
/// <param name="binaryOperatorKind">the operator kind</param>
/// <param name="leftNode">the left operand</param>
/// <param name="rightNode">the right operand</param>
/// <param name="typeReference">type reference for the result BinaryOperatorNode.</param>
public virtual void PromoteBinaryOperandTypes(
BinaryOperatorKind binaryOperatorKind,
ref SingleValueNode leftNode,
ref SingleValueNode rightNode,
out IEdmTypeReference typeReference)
{
typeReference = null;
BinaryOperatorBinder.PromoteOperandTypes(binaryOperatorKind, ref leftNode, ref rightNode);
}
public void CollectionRightTokenShouldFail()
{
this.binaryOperatorBinder = new BinaryOperatorBinder(this.BindMethodThatReturnsQueryNode, /*resolver*/ null);
this.leftQueryNode = new ConstantNode("People");
this.rightQueryNode = new EntitySetNode(this.model.FindDeclaredEntitySet("People"));
var binaryOperatorToken = new BinaryOperatorToken(BinaryOperatorKind.Equal, new LiteralToken("foo"), new LiteralToken("bar"));
Action bind = () => this.binaryOperatorBinder.BindBinaryOperator(binaryOperatorToken);
bind.Throws <ODataException>(Strings.MetadataBinder_BinaryOperatorOperandNotSingleValue("Equal"));
}
protected MethodInfo GetOverloadedBinaryOperator(string name, object operation)
{
Type leftType = MyLeftChild.ResultType;
Type rightType = MyRightChild.ResultType;
BinaryOperatorBinder binder = new BinaryOperatorBinder(leftType, rightType);
// If both arguments are of the same type, pick either as the owner type
if (object.ReferenceEquals(leftType, rightType))
{
return(Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType));
}
// Get the operator for both types
MethodInfo leftMethod = default(MethodInfo);
MethodInfo rightMethod = default(MethodInfo);
leftMethod = Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType);
rightMethod = Utility.GetOverloadedOperator(name, rightType, binder, leftType, rightType);
// Pick the right one
if (leftMethod == null & rightMethod == null)
{
// No operator defined for either
return(null);
}
else if (leftMethod == null)
{
return(rightMethod);
}
else if (rightMethod == null)
{
return(leftMethod);
}
else if (object.ReferenceEquals(leftMethod, rightMethod))
{
// same operator for both (most likely defined in a common base class)
return(leftMethod);
}
else
{
// Ambiguous call
base.ThrowAmbiguousCallException(leftType, rightType, operation);
return(null);
}
}
protected MethodInfo?GetOverloadedBinaryOperator(string name, object operation)
{
var leftType = LeftChild.ResultType;
var rightType = RightChild.ResultType;
var binder = new BinaryOperatorBinder(leftType, rightType);
// If both arguments are of the same type, pick either as the owner type
if (ReferenceEquals(leftType, rightType))
{
return(Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType));
}
// Get the operator for both types
var leftMethod = Utility.GetOverloadedOperator(name, leftType, binder, leftType, rightType);
var rightMethod = Utility.GetOverloadedOperator(name, rightType, binder, leftType, rightType);
// Pick the right one
if (leftMethod == null & rightMethod == null)
{
// No operator defined for either
return(null);
}
if (leftMethod == null)
{
return(rightMethod);
}
if (rightMethod == null)
{
return(leftMethod);
}
//Ambiguous call
throw CreateCompileException(CompileErrors.AmbiguousOverloadedOperator, CompileExceptionReason.AmbiguousMatch,
leftType.Name, rightType.Name, operation);
}
public void Init()
{
this.shouldReturnLeft = true;
this.binaryOperatorBinder = new BinaryOperatorBinder(this.BindMethodThatReturnsSingleValueQueryNode, /*resolver*/ null);
}
public BinaryOperatorBinderTests()
{
this.shouldReturnLeft = true;
this.binaryOperatorBinder = new BinaryOperatorBinder(this.BindMethodThatReturnsSingleValueQueryNode, ODataUriResolver.GetUriResolver(null));
}