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);
}
}
public void DefineVariable(string identifier, object obj)
{
if (IsVariableDeclared(identifier))
{
if (DeclaredVariables[identifier].BogieLangType == BogieLangTypeHelpr.ObjectToType(obj))
{
DeclaredVariables[identifier].Value = obj;
}
else
{
throw new Exception(identifier + " is of type " + DeclaredVariables[identifier].BogieLangType + ", got a " + BogieLangTypeHelpr.ObjectToType(obj));
}
}
else if (ParentEnvironment != null)
{
ParentEnvironment.DefineVariable(identifier, obj);
}
else
{
throw new Exception("Undeclaration variable: " + identifier);
}
}
public void Execute(FunctionEnvironment functionEnvironment, VariableEnvironment variableEnvironment)
{
object value = Expression.Execute(functionEnvironment, variableEnvironment);
variableEnvironment.DefineVariable(Identifier, value);
}