// ISCNode members
public void Evaluate(Scope scope)
{
// Predefined functinos
if (Function.Name == "putchar")
{
foreach (IExprNode expr in Parameters)
{
expr.Evaluate(scope);
Console.WriteLine(expr.IntValue);
}
return;
}
Scope globalScope = scope.GlobalScope;
if (FuncDeclsContainer.Contains(Function))
throw new InterpreterException("Call to undefined function: " + Function.Name);
Scope childScope = new Scope(globalScope);
FuncDefNode funcDef = globalScope.FuncDefs.Get(Function);
for (int i = 0; i < Parameters.Count; ++i)
{
Parameters[i].Evaluate(scope);
childScope.Add(funcDef.Parameters[i].Name, new IntVariable(Parameters[i].IntValue));
}
funcDef.Body.Evaluate(childScope);
}
// ISCNode members
public void Evaluate(Scope scope)
{
foreach (ISCNode statement in Statements)
{
if (statement is CompoundStatementNode)
{
Scope childScope = new Scope(scope);
statement.Evaluate(childScope);
}
else if (statement is IExprNode)
{
statement.Evaluate(scope);
}
else if (statement is VarDefNode)
{
scope.Add(statement as VarDefNode);
}
}
// TODO: Evaluate compound statement
}