public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
foreach (Tuple <BogieLangType, string> param in Parameters)
{
if (!variableEnvironment.IsVariableDeclared(param.Item2))
{
throw new Exception("Missing parameter: " + param.Item2);
}
}
foreach (Body body in Body)
{
object obj = body.Execute(functionEnvironment, variableEnvironment);
if (obj != null)
{
BogieLangType returningType = BogieLangTypeHelpr.ObjectToType(obj);
if (returningType == ReturnBogieLangType)
{
return(obj);
}
else
{
throw new Exception("Function " + Identifier + " returned a " + returningType + ", but should return a " + ReturnBogieLangType);
}
}
}
return(null);
}
public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
Expression rightExpression = _getRightmostExpression();
return(rightExpression._execute(functionEnvironment, variableEnvironment));
/*if (SubExpression == null)
* {
* if (Identifier != null) { return variableEnvironment.GetVariableValue(Identifier); }
* else if (Literal != null) { return Literal.Execute(); }
* else if (FunctionCall != null) { return FunctionCall.Execute(functionEnvironment, variableEnvironment); }
* else { throw new Exception("Unknown expression"); }
* }
* else
* {
* object left;
* if (Identifier != null) { left = variableEnvironment.GetVariableValue(Identifier); }
* else if (Literal != null) { left = Literal.Execute(); }
* else if (FunctionCall != null) { left = FunctionCall.Execute(functionEnvironment, variableEnvironment); }
* else { throw new Exception("Unknown expression"); }
*
* object right = SubExpression.Execute(functionEnvironment, variableEnvironment);
* return Operators.OperatorHelper.Execute(Operator, left, right);
* }*/
}
public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
if (VarDeclaration != null)
{
VarDeclaration.Execute(functionEnvironment, variableEnvironment); return(null);
}
else if (VarDefinition != null)
{
VarDefinition.Execute(functionEnvironment, variableEnvironment); return(null);
}
else if (FunctionCall != null)
{
return(FunctionCall.Execute(functionEnvironment, variableEnvironment));
}
else if (FunctionReturn != null)
{
return(FunctionReturn.Execute(functionEnvironment, variableEnvironment));
}
else if (IfControl != null)
{
return(IfControl.Execute(functionEnvironment, variableEnvironment));
}
else if (WhileControl != null)
{
return(WhileControl.Execute(functionEnvironment, variableEnvironment));
}
else
{
throw new NotImplementedException();
}
}
public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
if (!functionEnvironment.IsFunctionDefined(Identifier))
{
throw new Exception("Calling undefined function: " + Identifier);
}
VariableEnvironment localVariables = new VariableEnvironment();
localVariables.ParentEnvironment = variableEnvironment;//todo: switch
FunctionDefinition functionDefinition = functionEnvironment.GetDefinedFunction(Identifier);
for (int i = 0; i < Arguments.Count; i++)
{
object obj = Arguments[i].Execute(functionEnvironment, variableEnvironment);
BogieLangType bogieLangType = BogieLangTypeHelpr.ObjectToType(obj);
if (functionDefinition.Parameters[i].Item1 == bogieLangType)
{
localVariables.DeclareVariable(functionDefinition.Parameters[i].Item2, functionDefinition.Parameters[i].Item1);
localVariables.DefineVariable(functionDefinition.Parameters[i].Item2, obj);
}
}
return(functionDefinition.Execute(functionEnvironment, localVariables));
}
public void Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
object value = null;
if (Expression != null)
{
value = Expression.Execute(functionEnvironment, variableEnvironment);
}
variableEnvironment.DeclareVariable(Identifier, (BogieLangType)BogieLangType);
if (value != null)
{
variableEnvironment.DefineVariable(Identifier, value);
}
}
private object _execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
if (ParentExpression == null)
{
if (Identifier != null)
{
return(variableEnvironment.GetVariableValue(Identifier));
}
else if (Literal != null)
{
return(Literal.Execute());
}
else if (FunctionCall != null)
{
return(FunctionCall.Execute(functionEnvironment, variableEnvironment));
}
else
{
throw new Exception("Unknown expression");
}
}
else
{
object right;
if (Identifier != null)
{
right = variableEnvironment.GetVariableValue(Identifier);
}
else if (Literal != null)
{
right = Literal.Execute();
}
else if (FunctionCall != null)
{
right = FunctionCall.Execute(functionEnvironment, variableEnvironment);
}
else
{
throw new Exception("Unknown expression");
}
object left = ParentExpression._execute(functionEnvironment, variableEnvironment);
return(Operators.OperatorHelper.Execute(ParentExpression.Operator, left, right));
}
}
public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
object obj = Expression.Execute(functionEnvironment, variableEnvironment);
VariableEnvironment localVariables = new VariableEnvironment();
localVariables.ParentEnvironment = variableEnvironment;
if (obj is bool && (bool)obj == true)
{
foreach (Body body in Body)
{
object val = body.Execute(functionEnvironment, localVariables);
if (val != null)
{
return(val);
}
;
}
}
return(null);
}
public object Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
return(Expression.Execute(functionEnvironment, variableEnvironment));
}
public void Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
object value = Expression.Execute(functionEnvironment, variableEnvironment);
variableEnvironment.DefineVariable(Identifier, value);
}