private IExpression ParseMatchExpression()
{
IExpression expression = this.ParseSimpleExpression();
Token token = this.NextToken();
if (expression == null)
{
if (token == null)
{
return(null);
}
else
{
throw new ParserException(string.Format("Unexpected '{0}'", token.Value));
}
}
if (token != null && token.Type == TokenType.Operator && token.Value == "=")
{
expression = new MatchExpression(expression, this.ParseSimpleExpression());
return(expression);
}
else if (token != null && token.Type == TokenType.Operator && token.Value == "!")
{
expression = new SendExpression(expression, this.ParseSimpleExpression());
return(expression);
}
else
{
this.PushToken(token);
}
return(expression);
}
public void SendMessageToProcessWithVariableExpression()
{
Context context = new Context();
Process process = new Process();
context.SetValue("X", 1);
SendExpression expr = new SendExpression(new ConstantExpression(process), new VariableExpression(new Variable("X")));
Assert.IsNotNull(expr.ProcessExpression);
Assert.IsInstanceOfType(expr.ProcessExpression, typeof(ConstantExpression));
Assert.IsNotNull(expr.MessageExpression);
Assert.IsInstanceOfType(expr.MessageExpression, typeof(VariableExpression));
Assert.IsTrue(expr.HasVariable());
Assert.AreEqual(1, expr.Evaluate(context));
Assert.AreEqual(1, process.GetMessage());
}