Esempio n. 1
0
        public override void ExportJavaScriptCodeStatements(StringCollection method)
        {
            MathNode.Trace("ExportJavaScriptCodeStatements for {0}", this.GetType());
            //0: start
            //1: end
            //2: function
            //3: dx             IsParam
            //4: sum            IsLocal
            //5: summing index  IsLocal IsParam
            base.ExportJavaScriptCodeStatements(method);
            //assign code expression to all x in the function
            OnPrepareJavaScriptVariable(method);
            MathNodeVariable.DeclareJavaScriptVariable(method, (IVariable)this[4], "0");
            string sum = ((IVariable)this[4]).CodeVariableName;

            method.Add(MathNode.FormString("{0}=0;\r\n", sum));
            string c5 = this.GetParameterCodeJS(method, 5);
            string f1 = MathNode.FormString("for({0}=1;{1}<={2}-1;({1})++)\r\n{\r\n");

            method.Add(f1);
            method.Add(MathNode.FormString("\t{0}={0} + {1};\r\n", sum, this.GetParameterCodeJS(method, 2)));
            method.Add("}\r\n");
            //clear code expression to all x in the function
            this[2].AssignJavaScriptCodeExp(null, ((MathNodeVariable)this[3]).CodeVariableName);
        }
Esempio n. 2
0
        public override void ExportJavaScriptCodeStatements(StringCollection method)
        {
            int n = Branches;

            MathNode.Trace("ExportJavaScriptCodeStatements for {0}, branches: {1}", this.GetType(), n);
            string resultName = ((IVariable)this[n + 1]).CodeVariableName;

            OnPrepareJavaScriptVariable(method);
            MathNode.Trace("result is varibale {0}", resultName);
            string result = resultName;

            MathNodeVariable.DeclareJavaScriptVariable(method, (IVariable)this[n + 1], null);
            MathNode.Trace("default value: {0}", this[n].ToString());
            this[n].ExportJavaScriptCodeStatements(method);
            string eDefault  = this[n].CreateJavaScript(method);
            string stDefault = MathNode.FormString("{0}={1};\r\n", result, eDefault);

            if (n == 0)
            {
                MathNode.Trace("no condition given");
                method.Add(stDefault);
            }
            else
            {
                string    e              = this[0][1].CreateJavaScript(method);
                string    ce             = this[0][0].CreateJavaScript(method);
                bool      isSameVariable = false;
                IVariable ve             = this[0][0] as IVariable;
                if (ve != null)
                {
                    if (string.CompareOrdinal(ve.VariableName, resultName) == 0)
                    {
                        isSameVariable = true;
                    }
                }
                StringBuilder trueStatements  = new StringBuilder();
                StringBuilder falseStatements = new StringBuilder();
                if (!isSameVariable)
                {
                    trueStatements.Append(MathNode.FormString("{0}={1};\r\n", result, e));
                }
                int    indent = 0;
                string tabs   = string.Empty;
                method.Add(MathNode.FormString("if({0}) {{\r\n\t", ce));
                method.Add(trueStatements.ToString());
                method.Add("}\r\n");
                for (int i = 1; i < n; i++)
                {
                    e  = this[i][1].CreateJavaScript(method);
                    ce = this[i][0].CreateJavaScript(method);
                    method.Add(tabs);
                    method.Add("else {\r\n");
                    indent++;
                    tabs = new string('\t', indent);
                    method.Add(tabs);
                    method.Add(MathNode.FormString("if({0}) {{\r\n", ce));
                    method.Add(tabs);
                    method.Add(MathNode.FormString("\t{0}={1};\r\n", result, e));
                    method.Add(tabs);
                    method.Add("}\r\n");
                }
                method.Add(tabs);
                method.Add("else {\r\n\t");
                method.Add(tabs);
                method.Add(stDefault);
                method.Add("\r\n");
                method.Add(tabs);
                method.Add("}\r\n");
                for (int i = 1; i < n; i++)
                {
                    indent--;
                    tabs = new string('\t', indent);
                    method.Add(tabs);
                    method.Add("}\r\n");
                }
            }
        }