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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Igor Bukanov
+ * Bob Jervis
+ * Roger Lawrence
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.javascript;
+
+import org.mozilla.javascript.debug.DebuggableScript;
+
+final class InterpretedFunction extends NativeFunction implements Script
+{
+ static final long serialVersionUID = 541475680333911468L;
+
+ InterpreterData idata;
+ SecurityController securityController;
+ Object securityDomain;
+ Scriptable[] functionRegExps;
+
+ private InterpretedFunction(InterpreterData idata,
+ Object staticSecurityDomain)
+ {
+ this.idata = idata;
+
+ // Always get Context from the current thread to
+ // avoid security breaches via passing mangled Context instances
+ // with bogus SecurityController
+ Context cx = Context.getContext();
+ SecurityController sc = cx.getSecurityController();
+ Object dynamicDomain;
+ if (sc != null) {
+ dynamicDomain = sc.getDynamicSecurityDomain(staticSecurityDomain);
+ } else {
+ if (staticSecurityDomain != null) {
+ throw new IllegalArgumentException();
+ }
+ dynamicDomain = null;
+ }
+
+ this.securityController = sc;
+ this.securityDomain = dynamicDomain;
+ }
+
+ private InterpretedFunction(InterpretedFunction parent, int index)
+ {
+ this.idata = parent.idata.itsNestedFunctions[index];
+ this.securityController = parent.securityController;
+ this.securityDomain = parent.securityDomain;
+ }
+
+ /**
+ * Create script from compiled bytecode.
+ */
+ static InterpretedFunction createScript(InterpreterData idata,
+ Object staticSecurityDomain)
+ {
+ InterpretedFunction f;
+ f = new InterpretedFunction(idata, staticSecurityDomain);
+ return f;
+ }
+
+ /**
+ * Create function compiled from Function(...) constructor.
+ */
+ static InterpretedFunction createFunction(Context cx,Scriptable scope,
+ InterpreterData idata,
+ Object staticSecurityDomain)
+ {
+ InterpretedFunction f;
+ f = new InterpretedFunction(idata, staticSecurityDomain);
+ f.initInterpretedFunction(cx, scope);
+ return f;
+ }
+
+ /**
+ * Create function embedded in script or another function.
+ */
+ static InterpretedFunction createFunction(Context cx, Scriptable scope,
+ InterpretedFunction parent,
+ int index)
+ {
+ InterpretedFunction f = new InterpretedFunction(parent, index);
+ f.initInterpretedFunction(cx, scope);
+ return f;
+ }
+
+ Scriptable[] createRegExpWraps(Context cx, Scriptable scope)
+ {
+ if (idata.itsRegExpLiterals == null) Kit.codeBug();
+
+ RegExpProxy rep = ScriptRuntime.checkRegExpProxy(cx);
+ int N = idata.itsRegExpLiterals.length;
+ Scriptable[] array = new Scriptable[N];
+ for (int i = 0; i != N; ++i) {
+ array[i] = rep.wrapRegExp(cx, scope, idata.itsRegExpLiterals[i]);
+ }
+ return array;
+ }
+
+ private void initInterpretedFunction(Context cx, Scriptable scope)
+ {
+ initScriptFunction(cx, scope);
+ if (idata.itsRegExpLiterals != null) {
+ functionRegExps = createRegExpWraps(cx, scope);
+ }
+ }
+
+ public String getFunctionName()
+ {
+ return (idata.itsName == null) ? "" : idata.itsName;
+ }
+
+ /**
+ * Calls the function.
+ * @param cx the current context
+ * @param scope the scope used for the call
+ * @param thisObj the value of "this"
+ * @param args function arguments. Must not be null. You can use
+ * {@link ScriptRuntime#emptyArgs} to pass empty arguments.
+ * @return the result of the function call.
+ */
+ public Object call(Context cx, Scriptable scope, Scriptable thisObj,
+ Object[] args)
+ {
+ if (!ScriptRuntime.hasTopCall(cx)) {
+ return ScriptRuntime.doTopCall(this, cx, scope, thisObj, args);
+ }
+ return Interpreter.interpret(this, cx, scope, thisObj, args);
+ }
+
+ public Object exec(Context cx, Scriptable scope)
+ {
+ if (idata.itsFunctionType != 0) {
+ // Can only be applied to scripts
+ throw new IllegalStateException();
+ }
+ if (!ScriptRuntime.hasTopCall(cx)) {
+ // It will go through "call" path. but they are equivalent
+ return ScriptRuntime.doTopCall(
+ this, cx, scope, scope, ScriptRuntime.emptyArgs);
+ }
+ return Interpreter.interpret(
+ this, cx, scope, scope, ScriptRuntime.emptyArgs);
+ }
+
+ public String getEncodedSource()
+ {
+ return Interpreter.getEncodedSource(idata);
+ }
+
+ public DebuggableScript getDebuggableView()
+ {
+ return idata;
+ }
+
+ public Object resumeGenerator(Context cx, Scriptable scope, int operation,
+ Object state, Object value)
+ {
+ return Interpreter.resumeGenerator(cx, scope, operation, state, value);
+ }
+
+ protected int getLanguageVersion()
+ {
+ return idata.languageVersion;
+ }
+
+ protected int getParamCount()
+ {
+ return idata.argCount;
+ }
+
+ protected int getParamAndVarCount()
+ {
+ return idata.argNames.length;
+ }
+
+ protected String getParamOrVarName(int index)
+ {
+ return idata.argNames[index];
+ }
+
+ protected boolean getParamOrVarConst(int index)
+ {
+ return idata.argIsConst[index];
+ }
+}
+