public object execute(String strJS)
{
object result;
try
{
result = Eval.JScriptEvaluate(strJS, vsaEngine);
}
catch (Exception ex)
{
System.Console.WriteLine("failed to execute:\r\n" + strJS + " because " + ex.Message);
result = ex;
}
return(result);
}
public static Object JScriptEvaluate(Object source, Object unsafeOption, VsaEngine engine)
{
if (Convert.GetTypeCode(source) != TypeCode.String)
{
return(source);
}
bool isUnsafe = false;
if (Convert.GetTypeCode(unsafeOption) == TypeCode.String)
{
if (((IConvertible)unsafeOption).ToString() == "unsafe")
{
isUnsafe = true;
}
}
return(Eval.DoEvaluate(source, engine, isUnsafe));
}
private AST MemberExpression(AST expression, ArrayList newContexts, out bool canBeQualid, ref bool canBeAttribute){
bool noMoreForAttr = false;
canBeQualid = true;
for(;;){
this.noSkipTokenSet.Add(NoSkipTokenSet.s_MemberExprNoSkipTokenSet);
try{
switch (this.currentToken.token){
case JSToken.LeftParen:
if (noMoreForAttr)
canBeAttribute = false;
else
noMoreForAttr = true;
canBeQualid = false;
ASTList args = null;
RecoveryTokenException callError = null;
this.noSkipTokenSet.Add(NoSkipTokenSet.s_ParenToken);
try{
args = ParseExpressionList(JSToken.RightParen);
}catch(RecoveryTokenException exc){
args = (ASTList)exc._partiallyComputedNode;
if (IndexOfToken(NoSkipTokenSet.s_ParenToken, exc) == -1)
callError = exc; // thrown later on
}finally{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_ParenToken);
}
//treat eval and print specially
if (expression is Lookup){
String name = expression.ToString();
if (name.Equals("eval")){
expression.context.UpdateWith(args.context);
if (args.count > 0)
expression = new Eval(expression.context, args[0]);
else
expression = new Eval(expression.context, new ConstantWrapper("", CurrentPositionContext()));
}else if (this.Globals.engine.doPrint && name.Equals("print")){
expression.context.UpdateWith(args.context);
expression = new Print(expression.context, args);
}else{
if (name == "GetObject")
this.ForceReportInfo(JSError.GetObjectNotSupportedOnRotor);
expression = new Call(expression.context.CombineWith(args.context), expression, args, false);
}
}else
expression = new Call(expression.context.CombineWith(args.context), expression, args, false);
if (null != newContexts && newContexts.Count > 0){
((Context)newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
if (!(expression is Call))
expression = new Call((Context)newContexts[newContexts.Count - 1], expression, new ASTList(CurrentPositionContext()), false);
else
expression.context = (Context)newContexts[newContexts.Count - 1];
((Call)expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
if (callError != null){
callError._partiallyComputedNode = expression;
throw callError;
}
GetNextToken();
break;
case JSToken.LeftBracket:
canBeQualid = false;
canBeAttribute = false;
this.noSkipTokenSet.Add(NoSkipTokenSet.s_BracketToken);
try{
args = ParseExpressionList(JSToken.RightBracket);
}catch(RecoveryTokenException exc){
if(IndexOfToken(NoSkipTokenSet.s_BracketToken, exc) == -1){
if (exc._partiallyComputedNode != null){
exc._partiallyComputedNode =
new Call(expression.context.CombineWith(this.currentToken.Clone()), expression, (ASTList)exc._partiallyComputedNode, true);
}else{
exc._partiallyComputedNode = expression;
}
throw exc;
}else
args = (ASTList)exc._partiallyComputedNode;
}finally{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_BracketToken);
}
expression = new Call(expression.context.CombineWith(this.currentToken.Clone()), expression, args, true);
if (null != newContexts && newContexts.Count > 0){
((Context)newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
expression.context = (Context)newContexts[newContexts.Count - 1];
((Call)expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
GetNextToken();
break;
case JSToken.AccessField:
if (noMoreForAttr)
canBeAttribute = false;
ConstantWrapper id = null;
GetNextToken();
if (JSToken.Identifier != this.currentToken.token){
string identifier = JSKeyword.CanBeIdentifier(this.currentToken.token);
if (null != identifier){
ForceReportInfo(JSError.KeywordUsedAsIdentifier);
id = new ConstantWrapper(identifier, this.currentToken.Clone());
}else{
ReportError(JSError.NoIdentifier);
SkipTokensAndThrow(expression);
}
}else
id = new ConstantWrapper(this.scanner.GetIdentifier(), this.currentToken.Clone());
GetNextToken();
expression = new Member(expression.context.CombineWith(id.context), expression, id);
break;
default:
if (null != newContexts){
while (newContexts.Count > 0){
((Context)newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
expression = new Call((Context)newContexts[newContexts.Count - 1],
expression,
new ASTList(CurrentPositionContext()),
false);
((Call)expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
}
return expression;
}
}catch(RecoveryTokenException exc){
if (IndexOfToken(NoSkipTokenSet.s_MemberExprNoSkipTokenSet, exc) != -1)
expression = exc._partiallyComputedNode;
else{
Debug.Assert(exc._partiallyComputedNode == expression);
throw exc;
}
}finally{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_MemberExprNoSkipTokenSet);
}
}
}
private AST MemberExpression(AST expression, ArrayList newContexts, out bool canBeQualid, ref bool canBeAttribute)
{
AST ast;
bool flag = false;
canBeQualid = true;
Label_0005:
this.noSkipTokenSet.Add(NoSkipTokenSet.s_MemberExprNoSkipTokenSet);
try
{
try
{
ASTList list;
ConstantWrapper wrapper;
switch (this.currentToken.token)
{
case JSToken.LeftParen:
if (!flag)
{
break;
}
canBeAttribute = false;
goto Label_0048;
case JSToken.LeftBracket:
canBeQualid = false;
canBeAttribute = false;
this.noSkipTokenSet.Add(NoSkipTokenSet.s_BracketToken);
try
{
list = this.ParseExpressionList(JSToken.RightBracket);
}
catch (RecoveryTokenException exception3)
{
if (this.IndexOfToken(NoSkipTokenSet.s_BracketToken, exception3) == -1)
{
if (exception3._partiallyComputedNode != null)
{
exception3._partiallyComputedNode = new Call(expression.context.CombineWith(this.currentToken.Clone()), expression, (ASTList) exception3._partiallyComputedNode, true);
}
else
{
exception3._partiallyComputedNode = expression;
}
throw exception3;
}
list = (ASTList) exception3._partiallyComputedNode;
}
finally
{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_BracketToken);
}
expression = new Call(expression.context.CombineWith(this.currentToken.Clone()), expression, list, true);
if ((newContexts != null) && (newContexts.Count > 0))
{
((Context) newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
expression.context = (Context) newContexts[newContexts.Count - 1];
((Call) expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
this.GetNextToken();
goto Label_0005;
case JSToken.AccessField:
{
if (flag)
{
canBeAttribute = false;
}
wrapper = null;
this.GetNextToken();
if (JSToken.Identifier == this.currentToken.token)
{
goto Label_03EF;
}
string str2 = JSKeyword.CanBeIdentifier(this.currentToken.token);
if (str2 != null)
{
this.ForceReportInfo(JSError.KeywordUsedAsIdentifier);
wrapper = new ConstantWrapper(str2, this.currentToken.Clone());
}
else
{
this.ReportError(JSError.NoIdentifier);
this.SkipTokensAndThrow(expression);
}
goto Label_040C;
}
default:
if (newContexts != null)
{
while (newContexts.Count > 0)
{
((Context) newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
expression = new Call((Context) newContexts[newContexts.Count - 1], expression, new ASTList(this.CurrentPositionContext()), false);
((Call) expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
}
return expression;
}
flag = true;
Label_0048:
canBeQualid = false;
list = null;
RecoveryTokenException exception = null;
this.noSkipTokenSet.Add(NoSkipTokenSet.s_ParenToken);
try
{
list = this.ParseExpressionList(JSToken.RightParen);
}
catch (RecoveryTokenException exception2)
{
list = (ASTList) exception2._partiallyComputedNode;
if (this.IndexOfToken(NoSkipTokenSet.s_ParenToken, exception2) == -1)
{
exception = exception2;
}
}
finally
{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_ParenToken);
}
if (expression is Lookup)
{
string str = expression.ToString();
if (str.Equals("eval"))
{
expression.context.UpdateWith(list.context);
if (list.count == 1)
{
expression = new Eval(expression.context, list[0], null);
}
else if (list.count > 1)
{
expression = new Eval(expression.context, list[0], list[1]);
}
else
{
expression = new Eval(expression.context, new ConstantWrapper("", this.CurrentPositionContext()), null);
}
canBeAttribute = false;
}
else if (this.Globals.engine.doPrint && str.Equals("print"))
{
expression.context.UpdateWith(list.context);
expression = new Print(expression.context, list);
canBeAttribute = false;
}
else
{
expression = new Call(expression.context.CombineWith(list.context), expression, list, false);
}
}
else
{
expression = new Call(expression.context.CombineWith(list.context), expression, list, false);
}
if ((newContexts != null) && (newContexts.Count > 0))
{
((Context) newContexts[newContexts.Count - 1]).UpdateWith(expression.context);
if (expression is Call)
{
expression.context = (Context) newContexts[newContexts.Count - 1];
}
else
{
expression = new Call((Context) newContexts[newContexts.Count - 1], expression, new ASTList(this.CurrentPositionContext()), false);
}
((Call) expression).isConstructor = true;
newContexts.RemoveAt(newContexts.Count - 1);
}
if (exception != null)
{
exception._partiallyComputedNode = expression;
throw exception;
}
this.GetNextToken();
goto Label_0005;
Label_03EF:
wrapper = new ConstantWrapper(this.scanner.GetIdentifier(), this.currentToken.Clone());
Label_040C:
this.GetNextToken();
expression = new Member(expression.context.CombineWith(wrapper.context), expression, wrapper);
}
catch (RecoveryTokenException exception4)
{
if (this.IndexOfToken(NoSkipTokenSet.s_MemberExprNoSkipTokenSet, exception4) == -1)
{
throw exception4;
}
expression = exception4._partiallyComputedNode;
}
goto Label_0005;
}
finally
{
this.noSkipTokenSet.Remove(NoSkipTokenSet.s_MemberExprNoSkipTokenSet);
}
return ast;
}