public void TestBasicInterpreterSubstraction()
{
IFunctionRegistry functionRegistry = new MockFunctionRegistry();
IExecutor executor = new Interpreter();
double result = executor.Execute(new Subtraction(
DataType.Integer,
new IntegerConstant(6),
new IntegerConstant(9)), functionRegistry);
Assert.AreEqual(-3.0, result);
}
public void TestBasicInterpreter1()
{
IFunctionRegistry functionRegistry = new MockFunctionRegistry();
IExecutor executor = new Interpreter();
// 6 + (2 * 4)
double result = executor.Execute(
new Addition(
DataType.Integer,
new IntegerConstant(6),
new Multiplication(
DataType.Integer,
new IntegerConstant(2),
new IntegerConstant(4))), functionRegistry);
Assert.AreEqual(14.0, result);
}
public void TestBasicInterpreterWithVariables()
{
IFunctionRegistry functionRegistry = new MockFunctionRegistry();
Dictionary<string, double> variables = new Dictionary<string, double>();
variables.Add("var1", 2);
variables.Add("age", 4);
IExecutor interpreter = new Interpreter();
// var1 + 2 * (3 * age)
double result = interpreter.Execute(
new Addition(DataType.FloatingPoint,
new Variable("var1"),
new Multiplication(
DataType.FloatingPoint,
new IntegerConstant(2),
new Multiplication(
DataType.FloatingPoint,
new IntegerConstant(3),
new Variable("age")))), functionRegistry, variables);
Assert.AreEqual(26.0, result);
}
private void calculateButton_Click(object sender, RoutedEventArgs e)
{
try
{
ClearScreen();
string formula = formulaTextBox.Text;
TokenReader reader = new TokenReader(CultureInfo.InvariantCulture);
List<Token> tokens = reader.Read(formula);
ShowTokens(tokens);
IFunctionRegistry functionRegistry = new FunctionRegistry(false);
AstBuilder astBuilder = new AstBuilder(functionRegistry);
Operation operation = astBuilder.Build(tokens);
ShowAbstractSyntaxTree(operation);
Dictionary<string, double> variables = new Dictionary<string, double>();
foreach (Variable variable in GetVariables(operation))
{
double value = AskValueOfVariable(variable);
variables.Add(variable.Name, value);
}
IExecutor executor = new Interpreter();
double result = executor.Execute(operation, null, variables);
resultTextBox.Text = "" + result;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
