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; }
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(); } }
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)Globals.contextEngine.ScriptObjectStackTop()).GetGlobalScope()); try{ return (ScriptFunction)p.ParseFunctionExpression().PartiallyEvaluate().Evaluate(); }finally{ 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; }
public static Object JScriptWith(object withObj, VsaEngine engine) { engine.PushScriptObject ((ScriptObject) Convert.ToObject (withObj, engine)); return withObj; }
public static void PushHandlerScope(VsaEngine engine, String id, int scopeId){ engine.PushScriptObject(new BlockScope(engine.ScriptObjectStackTop(), id, scopeId)); }
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(); } }
// 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; }