public static void Evaluate(ParsedExpressionList expressionList, SDFState state)
{
Object lastExpressionObject = null;
foreach (Object o in expressionList)
{
if (o is ParsedExpressionList)
{
if (lastExpressionObject != null)
{
state += lastExpressionObject;
try
{
Evaluate((ParsedExpressionList) o, state);
}
finally
{
state -= lastExpressionObject;
}
lastExpressionObject = null;
}
}
else
{
ParsedExpression expression = (ParsedExpression) o;
MethodInfo method = expression.Expression.GetType().GetMethod("Evaluate");
lastExpressionObject = method.Invoke(expression.Expression, new Object[] { state, expression.ExpressionName, expression.Arguments });
}
}
}
public void TestStateAccess()
{
registry.AddType(typeof(stringfromstate));
this.state += "stringydingy";
Assert.AreEqual("stringydingy", TokenString.Eval(registry, state, "$[stringfromstate]"));
}
public void SetUp()
{
this.registry = new TokenStringRegistry();
this.state = new SDFState();
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
((TokenResult) state[typeof(TokenResult)]).Result = arguments["result"].ToString();
}
private void EvaluateChildExpressions(SDFState state)
{
this.rootExpressionChildren.Evaluate(state);
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
}
public void PostCreateExpression(SDFState state, string name, Hashtable arguments, ParsedExpressionList children)
{
((ExpressionRegistry) state[typeof(ExpressionRegistry)]).AddAssembly(arguments["filename"].ToString());
}
public object Evaluate(SDFState state, string name, Hashtable arguments)
{
return arguments["string"].ToString();
}
public static void Load(ParsedExpressionList expressionList, SDFState state, ProvidedStatePile parentExpressionStatePile)
{
ExpressionRegistry expressions = (ExpressionRegistry) state[typeof(ExpressionRegistry)];
ParsedExpression expression = null;
TokenStringRegistry tokenStringRegistry = (TokenStringRegistry) state[typeof(TokenStringRegistry)];
foreach (Object o in expressionList)
{
if (o is ParsedExpressionList)
{
MaybeCallPostCreateExpression(state, expression, (ParsedExpressionList) o);
parentExpressionStatePile.AddProvidedStateFromObject(expression.Expression);
expression = null;
Load((ParsedExpressionList) o, state, parentExpressionStatePile);
parentExpressionStatePile.RemoveLastProvidedState();
}
else
{
if (expression != null)
{
MaybeCallPostCreateExpression(state, expression, null);
}
expression = (ParsedExpression) o;
BindArguments(expression.Arguments, tokenStringRegistry);
{
object newObject = null;
object foundObject = expressions[expression.ExpressionName];
Type type = foundObject as Type;
if ((foundObject != null) && (type == null))
{
type = foundObject.GetType();
}
if (type == null)
{
throw new SDFException(String.Format("Unknown expression '{0}'", expression.ExpressionName));
}
{
MethodInfo method = type.GetMethod("CreateExpression");
if (method != null)
{
newObject = method.Invoke(foundObject, new Object[] { state, expression.ExpressionName, expression.Arguments });
type = newObject.GetType();
}
else
{
newObject = type.GetConstructor(new Type[0]).Invoke(null);
}
}
{
// On the class, see if there are SDFArgument attributes
foreach (SDFArgumentAttribute argument in type.GetCustomAttributes(typeof(SDFArgumentAttribute), false))
{
// If the argument is required, then whine if it wasn't specified
if ((argument.Required) && (!expression.Arguments.Contains(argument.Name)))
{
throw new SDFException(String.Format("Rquired argument '{0}' was not specified", argument.Name));
}
}
}
// Set arguments to properties if required
{
// For each property, check to see if it has an SDFArgument attribute
foreach (PropertyInfo property in type.GetProperties())
{
foreach (SDFArgumentAttribute argument in property.GetCustomAttributes(typeof(SDFArgumentAttribute), false))
{
// If the argument is required, then whine if it wasn't specified
if ((argument.Required) && (!expression.Arguments.Contains(property.Name)))
{
throw new SDFException(String.Format("Rquired argument '{0}' was not specified", property.Name));
}
// Set the property
property.GetSetMethod().Invoke(newObject, new Object[] { expression.Arguments[property.Name] });
}
}
}
{
MethodInfo method = type.GetMethod("Evaluate");
// Now check to see if there's any required state
foreach (SDFStateRequiredAttribute stateRequired in method.GetCustomAttributes(typeof(SDFStateRequiredAttribute), false))
{
if ((state[stateRequired.RequiredType] == null) && (!parentExpressionStatePile.Contains(stateRequired.RequiredType)))
{
throw new SDFException(String.Format("Required state '{0}' was not found", stateRequired.RequiredType.Name));
}
}
}
expression.Expression = newObject;
}
}
}
if (expression != null)
{
MaybeCallPostCreateExpression(state, expression, null);
expression = null;
}
}
public void SetUp()
{
this.output = new StandardOutputRedirector();
this.state = new SDFState();
SDF.Eval(this.state, "LoadExpressions filename='SDF.Print.dll'");
}
public static void Eval(SDFState state, string eval)
{
ParsedExpressionList expressionList = ExpressionParser.Parse(eval);
Load(expressionList, state, new ProvidedStatePile());
expressionList.Evaluate(state);
}
private static void MaybeCallPostCreateExpression(SDFState state, ParsedExpression expression, ParsedExpressionList children)
{
MethodInfo postCreateMethod = expression.Expression.GetType().GetMethod("PostCreateExpression");
if (postCreateMethod != null)
{
postCreateMethod.Invoke(expression.Expression, new Object[] { state, expression.ExpressionName, expression.Arguments, children });
}
}
public string Evaluate(SDFState state, ArrayList arguments)
{
return (string) state[typeof(string)];
}
public string Evaluate(SDFState state, ArrayList arguments)
{
return "dogdude";
}
public object CreateExpression(SDFState state, string name, Hashtable arguments)
{
return new ObjectBasedFactoryInstance();
}
public void TestExpressionRequiredStatePresent()
{
this.state += "hear me roar";
((ExpressionRegistry) this.state[typeof(ExpressionRegistry)]).AddType(typeof(FooWithRequiredState));
SDF.Eval(this.state, "FooWithRequiredState");
Assert.AreEqual("I am FooWithRequiredState hear me roar\n", this.output.ToString());
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
Console.WriteLine("Dude this is {0}", arguments["message"]);
}
public static object CreateExpression(SDFState state, string name, Hashtable arguments)
{
return new FooAsFactory(name);
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
if (name != GetType().Name)
{
this.rootExpressionChildren.Evaluate(state);
}
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
System.Console.WriteLine("I am {0}", this.name);
}
public static object CreateExpression(SDFState state, string name, Hashtable arguments)
{
TokenExpression o = new TokenExpression();
((TokenStringRegistry) state[typeof(TokenStringRegistry)]).AddObject(arguments["name"].ToString(), o.Token);
return o;
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
System.Console.WriteLine("I am FooWithRequiredParamClassLevel {0}", arguments["argument"]);
}
public void PostCreateExpression(SDFState state, string name, Hashtable arguments, ParsedExpressionList children)
{
this.rootExpressionChildren = children;
}
public void Evaluate(SDFState state, string name, Hashtable arguments)
{
System.Console.WriteLine("I am FooWithRequiredState {0}", state[typeof(string)]);
}
public string Evaluate(SDFState state, ArrayList arguments)
{
TokenResult result = new TokenResult();
state += result;
try
{
parent.EvaluateChildExpressions(state);
}
finally
{
state -= result;
}
return result.Result;
}
public string Evaluate(SDFState state, ArrayList arguments)
{
return arguments[1].ToString().ToUpper();
}
public object CreateExpression(SDFState state, string name, Hashtable arguments)
{
if (name == GetType().Name)
{
object o = new Expression();
((ExpressionRegistry) state[typeof(ExpressionRegistry)]).AddObject(arguments["name"].ToString(), o);
return o;
}
else
{
return this;
}
}
public object Evaluate(SDFState state, string name, Hashtable arguments)
{
return isTrue;
}
public void Evaluate(SDFState state)
{
Evaluate(this, state);
}
public string ToString(SDFState state)
{
StringBuilder returnString = new StringBuilder();
if (this.arguments.Count > 0)
{
MethodInfo method = this.Token.GetType().GetMethod("Evaluate");
// Call the token with the arguments
returnString.Append(method.Invoke(this.Token, new Object[] { state, this.arguments }).ToString());
}
else
{
foreach (object o in this.elements)
{
if (o is TokenString)
{
returnString.Append(((TokenString) o).ToString(state));
}
else
{
returnString.Append(o.ToString());
}
}
}
return returnString.ToString();
}
