internal ScriptFunction Construct(Object[] args, VsaEngine engine)
{
StringBuilder func_string = new StringBuilder("function anonymous(");
for (int i = 0, n = args.Length - 2; i < n; i++)
{
func_string.Append(Convert.ToString(args[i]));
func_string.Append(", ");
}
if (args.Length > 1)
{
func_string.Append(Convert.ToString(args[args.Length - 2]));
}
func_string.Append(") {\n");
if (args.Length > 0)
{
func_string.Append(Convert.ToString(args[args.Length - 1]));
}
func_string.Append("\n}");
Context context = new Context(new DocumentContext("anonymous", engine), func_string.ToString());
JSParser p = new JSParser(context);
engine.PushScriptObject(((IActivationObject)engine.ScriptObjectStackTop()).GetGlobalScope());
try{
return((ScriptFunction)p.ParseFunctionExpression().PartiallyEvaluate().Evaluate());
}finally{
engine.PopScriptObject();
}
}
public static void JScriptPackage(string rootName, VsaEngine engine)
{
GlobalScope globalScope = ((IActivationObject)engine.ScriptObjectStackTop()).GetGlobalScope();
if (globalScope.GetLocalField(rootName) == null)
{
FieldInfo info = globalScope.AddNewField(rootName, Namespace.GetNamespace(rootName, engine), FieldAttributes.Literal | FieldAttributes.Public);
}
}
public static void JScriptImport(string name, VsaEngine engine)
{
int index = name.IndexOf('.');
string str = (index > 0) ? name.Substring(0, index) : name;
GlobalScope globalScope = ((IActivationObject)engine.ScriptObjectStackTop()).GetGlobalScope();
if (globalScope.GetLocalField(str) == null)
{
FieldInfo info = globalScope.AddNewField(str, Namespace.GetNamespace(str, engine), FieldAttributes.Literal | FieldAttributes.Public);
}
engine.SetEnclosingContext(new WrappedNamespace(name, engine, false));
}
public static object GetClosureInstance(VsaEngine engine)
{
if (engine != null)
{
StackFrame frame = engine.ScriptObjectStackTop() as StackFrame;
if (frame != null)
{
return(frame.closureInstance);
}
}
return(null);
}
public static FunctionObject JScriptFunctionExpression(RuntimeTypeHandle handle, string name,
string methodName, string [] formalParams,
JSLocalField [] fields, bool mustSaveStackLocals,
bool hasArgumentsObject, string text,
VsaEngine engine)
{
MethodInfo method = engine.ScriptObjectStackTop().GetType().GetMethod(methodName);
FunctionObject fun = new FunctionObject(method);
fun.source = text;
fun.vsa_engine = engine;
return(fun);
}
public static void JScriptImport(String name, VsaEngine engine)
{
int dotPos = name.IndexOf('.');
String rootName = dotPos > 0 ? name.Substring(0, dotPos) : name;
GlobalScope scope = ((IActivationObject)engine.ScriptObjectStackTop()).GetGlobalScope();
FieldInfo field = scope.GetLocalField(rootName);
if (field == null)
{
field = scope.AddNewField(rootName, Namespace.GetNamespace(rootName, engine), FieldAttributes.Public | FieldAttributes.Literal);
}
engine.SetEnclosingContext(new WrappedNamespace(name, engine, false));
}
// Push into a "with" scope and return the converted object.
public static Object JScriptWith(Object withOb, VsaEngine engine)
{
withOb = Convert.ToObject(withOb, engine);
if (withOb != null)
{
engine.PushScriptObjectChecked
(new WithScope(engine.ScriptObjectStackTop(), withOb));
return(withOb);
}
else
{
throw new JScriptException(JSError.ObjectExpected);
}
}
public static Closure JScriptFunctionDeclaration(RuntimeTypeHandle handle, string name,
string methodName, string [] formalParameters,
JSLocalField [] fields, bool mustSaveStackLocals,
bool hasArgumentsObjects, string text,
Object declaringObject, VsaEngine engine)
{
FunctionObject f = new FunctionObject(name, null, null, null, null);
f.source = text;
MethodInfo method = engine.ScriptObjectStackTop().GetType().GetMethod(methodName);
f.method = method;
f.vsa_engine = engine;
return(new Closure(f));
}
private static Object DoEvaluate(Object source, VsaEngine engine, bool isUnsafe)
{
if (engine.doFast)
{
engine.PushScriptObject(new BlockScope(engine.ScriptObjectStackTop()));
}
try{
Context context = new Context(new DocumentContext("eval code", engine), ((IConvertible)source).ToString());
JSParser p = new JSParser(context);
if (!isUnsafe)
{
new SecurityPermission(SecurityPermissionFlag.Execution).PermitOnly();
}
return(((Completion)p.ParseEvalBody().PartiallyEvaluate().Evaluate()).value);
}finally{
if (engine.doFast)
{
engine.PopScriptObject();
}
}
}
public static Object JScriptEvaluate(Object source, VsaEngine engine)
{
if (Convert.GetTypeCode(source) != TypeCode.String)
{
return(source);
}
if (engine.doFast)
{
engine.PushScriptObject(new BlockScope(engine.ScriptObjectStackTop()));
}
try{
Context context = new Context(new DocumentContext("eval code", engine), ((IConvertible)source).ToString());
JSParser p = new JSParser(context);
return(((Completion)p.ParseEvalBody().PartiallyEvaluate().Evaluate()).value);
}finally{
if (engine.doFast)
{
engine.PopScriptObject();
}
}
}
private static object DoEvaluate(object source, VsaEngine engine, bool isUnsafe)
{
object obj2;
if (engine.doFast)
{
engine.PushScriptObject(new BlockScope(engine.ScriptObjectStackTop()));
}
try
{
Context context = new Context(new DocumentContext("eval code", engine), ((IConvertible)source).ToString());
JSParser parser = new JSParser(context);
obj2 = ((Completion)parser.ParseEvalBody().PartiallyEvaluate().Evaluate()).value;
}
finally
{
if (engine.doFast)
{
engine.PopScriptObject();
}
}
return(obj2);
}
internal ScriptFunction Construct(object[] args, VsaEngine engine)
{
ScriptFunction function;
StringBuilder builder = new StringBuilder("function anonymous(");
int index = 0;
int num2 = args.Length - 2;
while (index < num2)
{
builder.Append(Microsoft.JScript.Convert.ToString(args[index]));
builder.Append(", ");
index++;
}
if (args.Length > 1)
{
builder.Append(Microsoft.JScript.Convert.ToString(args[args.Length - 2]));
}
builder.Append(") {\n");
if (args.Length > 0)
{
builder.Append(Microsoft.JScript.Convert.ToString(args[args.Length - 1]));
}
builder.Append("\n}");
Context context = new Context(new DocumentContext("anonymous", engine), builder.ToString());
JSParser parser = new JSParser(context);
engine.PushScriptObject(((IActivationObject)engine.ScriptObjectStackTop()).GetGlobalScope());
try
{
function = (ScriptFunction)parser.ParseFunctionExpression().PartiallyEvaluate().Evaluate();
}
finally
{
engine.PopScriptObject();
}
return(function);
}
private static object DefaultThisObject(VsaEngine engine)
{
Debug.Assert(engine != null);
return(((IActivationObject)engine.ScriptObjectStackTop()).GetDefaultThisObject());
}
// Evaluate a JScript expression in the context of a specific engine.
public static Object JScriptEvaluate(Object source, VsaEngine engine)
{
Object value = null;
// Bail out if we weren't supplied a string.
if (!(source is String))
{
return(source);
}
// Parse the "eval" statement.
Context context = new Context((String)source);
context.codebase = new CodeBase("eval code", null);
JSParser parser = new JSParser(context);
JNode node = parser.ParseSource(true);
// Push a scope for use during evaluation.
engine.PushScriptObject
(new BlockScope(engine.ScriptObjectStackTop(),
new JSObject(null, engine)));
// Evaluate the statement.
try
{
value = node.Eval(engine);
if (value == Empty.Value)
{
value = null;
}
}
catch (JScriptException e)
{
// Attach the context information to low-level exceptions.
if (e.context == null)
{
e.context = context;
}
throw;
}
catch (BreakJumpOut brk)
{
// "break" used incorrectly.
throw new JScriptException(JSError.BadBreak, brk.context);
}
catch (ContinueJumpOut cont)
{
// "continue" used incorrectly.
throw new JScriptException(JSError.BadContinue,
cont.context);
}
catch (ReturnJumpOut ret)
{
// "return" used incorrectly.
throw new JScriptException(JSError.BadReturn, ret.context);
}
finally
{
// Pop the script scope.
engine.PopScriptObject();
}
// Return the result of the evaluation to the caller.
return(value);
}
public static void PushHandlerScope(VsaEngine engine, string id, int scopeId)
{
engine.PushScriptObject(new BlockScope(engine.ScriptObjectStackTop(), id, scopeId));
}
