/// <summary>
/// Processes the child of the current reader position into a child of this object.
/// </summary>
/// <param name="reader">The XML reader</param>
protected override void ReadXmlChild(XmlReader reader) {
if(XmlInitializerName == reader.Name) {
Initializer = XmlSerialization.ReadChildExpression(reader);
} else {
base.ReadXmlChild(reader);
}
}
/// <summary>
/// Processes the child of the current reader position into a child of this object.
/// </summary>
/// <param name="reader">The XML reader</param>
protected override void ReadXmlChild(XmlReader reader) {
if(XmlLockExpressionName == reader.Name) {
LockExpression = XmlSerialization.ReadChildExpression(reader);
} else {
base.ReadXmlChild(reader);
}
}
/// <summary>
/// Processes the child of the current reader position into a child of this object.
/// </summary>
/// <param name="reader">The XML reader</param>
protected override void ReadXmlChild(XmlReader reader) {
if(XmlImportedNamespaceName == reader.Name) {
ImportedNamespace = XmlSerialization.ReadChildExpression(reader);
} else {
base.ReadXmlChild(reader);
}
}
/// <summary>
/// Analyze the expression and return NameUse it belongs
/// </summary>
/// <param name="exp"></param>
/// <param name="IsFieldUpdate"></param>
/// <returns></returns>
private NameUse GetNameUseOrObj(Expression exp, out bool IsFieldUpdate)
{
if(!exp.Components.Any()) {
IsFieldUpdate = false;
return exp as NameUse;
}
var compList = exp.Components.ToList();
//check if it contains sub assignment expression
if(compList.Count > 2) {
UpdateByExpToTheEnd(compList, 0);
IsFieldUpdate = false;
for(int curPos = 0; curPos < compList.Count; curPos += 2) {
if(curPos + 1 < compList.Count) {
var expOp = compList.ElementAt(curPos + 1) as OperatorUse;
if(expOp != null) {
if(IsNameInclusionOp(expOp)) {
//Has connection op (Check one matching by assuming the inputs are syntax correct.)
IsFieldUpdate = true;
}
}
}
NameUse nu = compList.ElementAt(curPos) as NameUse;
if(nu != null && nu.Name != "this" && nu.Name != "base") {
return nu;
}
}
return null;
//if(compList.First() is NameUse) {
// //Has connection op (Check one matching by assuming the inputs are syntax correct.)
// var expOp = compList.ElementAt(1) as OperatorUse;
// if(expOp != null) {
// foreach(var op in NameInclusionOperators) {
// if(op.Equals(expOp.Text)) {
// IsFieldUpdate = true;
// // check non static field
// var field = compList.Last() as NameUse;
// if(field != null && !field.GetType().IsSubclassOf(typeof(NameUse))) {
// VariableDeclaration vd = field.FindMatches().FirstOrDefault() as VariableDeclaration;
// //if(vd != 0 && vd.) {
// //}
// }
// }
// }
// }
//}
//return compList.First() as NameUse;
}
IsFieldUpdate = false;
return null;
}
/// <summary>
/// update info based on the expression
/// </summary>
/// <param name="exp"></param>
public void UpdateByExpression(Expression exp)
{
if(exp is VariableDeclaration) {
//variable declaration expression
var vdExp = (VariableDeclaration)exp;
VariableInfo vi = new VariableInfo(vdExp);
VariablesInfo.Add(vi);
//update if it contains assignment
if(vdExp.Initializer != null) {
var subExps = new List<Expression>();
if(vdExp.Initializer.Components.Count == 0) {
subExps.Add(vdExp.Initializer);
} else {
subExps = vdExp.Initializer.Components.ToList();
}
UpdateAssignmentExpRightHand(subExps, 0, vi, false);
//TO DO: ex. = new school()
}
} else if(exp is MethodCall) {
//Method call expression
var mcExp = (MethodCall)exp;
UpdateMethodCall(mcExp);
} else {
//Update the expression
var subExps = exp.Components.ToList();
int curPos = 0;
// Checks keyword new
if(subExps.Count > 0) {
var oUse = subExps.ElementAt(0) as OperatorUse;
if(oUse != null && oUse.Text == "new") {
if(InReturnStmt > 0) {
IsReturnNewObj = true;
}
curPos++;
}
}
UpdateByExpToTheEnd(subExps, curPos);
}
}
/// <summary>
/// Adds the given argument to the Arguments collection.
/// </summary>
/// <param name="arg">The argument to add.</param>
public void AddArgument(Expression arg) {
if(arg == null) { throw new ArgumentNullException("arg"); }
arg.ParentExpression = this;
arg.ParentStatement = this.ParentStatement;
argumentList.Add(arg);
}
/// <summary>
/// Adds the given Expression to the Components collection. Nothing will be done if <paramref name="component"/> is null.
/// </summary>
/// <param name="component">The component to add.</param>
public virtual void AddComponent(Expression component) {
if(null != component) {
component.ParentExpression = this;
componentsList.Add(component);
}
}
//This method is used to return the value of an expression. For example, a "MethodCall" expression would return "FunctionCall" for rebuild a string.
public string GetExpCont(Expression exp, List<string[]> variables)
{
string teststring = "";
if (exp is MethodCall) return "FunctionCall";
if (exp is LiteralUse)
{
LiteralUse expl = (LiteralUse)exp;
teststring = TakeQuotOff(expl.Text);
return teststring;
}
if (exp is VariableUse)
{
teststring = GetVariableCont(exp.ToString(), variables);
if (teststring == "") teststring = exp.ToString();
return teststring;
}
return "codeexpression";
}
//When we know an expression is a "MethodCall", we check it's arguments and handle the case like argument is m.call(string1 + string2). String1 plus string2 might be a invocation.
public string handleFunctionCall(Expression exp, List<string[]> variables)
{
string returnResult = "FunctionCall";
MethodCall mc = (MethodCall)exp;
if (mc.Arguments.Count == 0) return returnResult;
var arg = mc.Arguments[0];
if (arg.Components.Count == 0) return returnResult;
var exps = arg.Components;
string callPara = "";
for (int i = 0; i < exps.Count; i++)
{
var texp = exps.ElementAt(i);
if (texp is LiteralUse || texp is VariableUse)
{
callPara += GetExpCont(texp, variables);
continue;
}
if ((texp is OperatorUse) && texp.ToString() == "+" && i + 1 < exps.Count)
{
i = i + 1;
callPara += GetExpCont(exps.ElementAt(i), variables);
continue;
}
}
UpdateVariable("argument", variables, callPara);
return returnResult;
}
