public void TestFourArguments()
{
FuncAdapter adapater = new FuncAdapter();
List <ParameterInfo> parameters = new List <ParameterInfo>()
{
new ParameterInfo()
{
Name = "test1", DataType = DataType.Integer
},
new ParameterInfo()
{
Name = "test2", DataType = DataType.Integer
},
new ParameterInfo()
{
Name = "test3", DataType = DataType.Integer
},
new ParameterInfo()
{
Name = "test4", DataType = DataType.Integer
}
};
Func <int, int, int, int, double> wrappedFunction = (Func <int, int, int, int, double>)adapater.Wrap(parameters, dictionary => dictionary["test4"]);
Assert.AreEqual(8.0, wrappedFunction(2, 4, 6, 8));
}
public void TestFuncAdapterWrapAndGC()
{
FuncAdapter adapter = new FuncAdapter();
List <ParameterInfo> parameters = new List <ParameterInfo>()
{
new ParameterInfo()
{
Name = "test1", DataType = DataType.Integer
},
new ParameterInfo()
{
Name = "test2", DataType = DataType.FloatingPoint
}
};
Func <Dictionary <string, double>, double> function = (dictionary) => dictionary["test1"] + dictionary["test2"];
Func <int, double, double> wrappedFunction = (Func <int, double, double>)adapter.Wrap(parameters, function);
adapter = null;
GC.Collect();
Assert.AreEqual(3.0, wrappedFunction(1, 2.0));
}
/// <summary>
/// Build the formula defined. This will create a func delegate matching with the parameters
/// and the return type specified.
/// </summary>
/// <returns>The func delegate for the defined formula.</returns>
public Delegate Build()
{
if (!resultDataType.HasValue)
{
throw new Exception("Please define a result data type for the formula.");
}
Func <IDictionary <string, double>, double> formula = engine.Build(formulaText, constants);
FuncAdapter adapter = new FuncAdapter();
return(adapter.Wrap(parameters, variables =>
{
if (!caseSensitive)
{
variables = EngineUtil.ConvertVariableNamesToLowerCase(variables);
}
engine.VerifyVariableNames(variables);
// Add the reserved variables to the dictionary
foreach (ConstantInfo constant in engine.ConstantRegistry)
{
variables.Add(constant.ConstantName, constant.Value);
}
return formula(variables);
}));
}
public Delegate Build()
{
if (!resultDataType.HasValue)
{
throw new Exception("Please define a result data type for the formula.");
}
Func <Dictionary <string, double>, double> formula = engine.Build(formulaText);
FuncAdapter adapter = new FuncAdapter();
return(adapter.Wrap(parameters, variables => formula(variables)));
}
