public TokenBuffer(Lexer lexer, int size)
{
this.lexer = lexer;
tokenQueue = new List<Token>();
// init queue
for (int i = 0; i < size; i++)
{
Token token = NextToken();
if (token == null)
{
break;
}
tokenQueue.Add(token);
}
}
public Parser(Lexer lexer)
{
lookAheadBuffer = new TokenBuffer(lexer, 3);
}
/**
* Evaluate script
*
* @param stream The stream that contains the script
* @return The exit status
* @throws IOException
*/
public JavaScriptObject Execute(Stream stream)
{
foreach (Function customFunction in CustomFunctions)
{
this.scope.SetFunction(customFunction);
}
Lexer lexer = new Lexer(stream);
Parser parser = new Parser(lexer);
ScriptExecutable executable = parser.Parse();
return executable.Run(scope);
}
public Parser(Lexer lexer)
{
lookAheadBuffer = new TokenBuffer(lexer, 3);
}