Ejemplo n.º 1
0
        /// <summary>
        /// http://www.ecma-international.org/ecma-262/5.1/#sec-12.6.1
        /// </summary>
        /// <param name="doWhileStatement"></param>
        /// <returns></returns>
        public Completion ExecuteDoWhileStatement(DoWhileStatement doWhileStatement)
        {
            JsValue v = Undefined.Instance;
            bool iterating;

            do
            {
                var stmt = ExecuteStatement(doWhileStatement.Body);
                if (stmt.Value != null)
                {
                    v = stmt.Value;
                }
                if (stmt.Type != Completion.Continue || stmt.Identifier != doWhileStatement.LabelSet)
                {
                    if (stmt.Type == Completion.Break && (stmt.Identifier == null || stmt.Identifier == doWhileStatement.LabelSet))
                    {
                        return new Completion(Completion.Normal, v, null);
                    }

                    if (stmt.Type != Completion.Normal)
                    {
                        return stmt;
                    }
                }
                var exprRef = _engine.EvaluateExpression(doWhileStatement.Test);
                iterating = TypeConverter.ToBoolean(_engine.GetValue(exprRef));

            } while (iterating);

            return new Completion(Completion.Normal, v, null);
        }
Ejemplo n.º 2
0
 private void EmitDoWhileStatement(DoWhileStatement s)
 {
     Write("do ");
     Emit(s.Body);
     Write("while(");
     Emit(s.Test);
     Write(");");
 }