1 files changed, 118 insertions, 0 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Evaluator.java b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Evaluator.java
new file mode 100644
index 0000000..e222af3
--- /dev/null
+++ b/trunk/infrastructure/rhino1_7R1/src/org/mozilla/javascript/Evaluator.java
@@ -0,0 +1,118 @@
+/* -*- 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.
+ *
+ * Contributor(s):
+ *   Norris Boyd
+ *
+ * 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 java.util.List;
+
+/**
+ * Abstraction of evaluation, which can be implemented either by an
+ * interpreter or compiler.
+ */
+public interface Evaluator {
+
+    /**
+     * Compile the script or function from intermediate representation
+     * tree into an executable form.
+     *
+     * @param compilerEnv Compiler environment
+     * @param tree intermediate representation
+     * @param encodedSource encoding of the source code for decompilation
+     * @param returnFunction if true, compiling a function
+     * @return an opaque object that can be passed to either
+     *         createFunctionObject or createScriptObject, depending on the
+     *         value of returnFunction
+     */
+    public Object compile(CompilerEnvirons compilerEnv,
+                      ScriptOrFnNode tree,
+                      String encodedSource,
+                      boolean returnFunction);
+
+    /**
+     * Create a function object.
+     *
+     * @param cx Current context
+     * @param scope scope of the function
+     * @param bytecode opaque object returned by compile
+     * @param staticSecurityDomain security domain
+     * @return Function object that can be called
+     */
+    public Function createFunctionObject(Context cx, Scriptable scope,
+            Object bytecode, Object staticSecurityDomain);
+
+    /**
+     * Create a script object.
+     *
+     * @param bytecode opaque object returned by compile
+     * @param staticSecurityDomain security domain
+     * @return Script object that can be evaluated
+     */
+    public Script createScriptObject(Object bytecode,
+                                     Object staticSecurityDomain);
+
+    /**
+     * Capture stack information from the given exception.
+     * @param ex an exception thrown during execution
+     */
+    public void captureStackInfo(RhinoException ex);
+
+    /**
+     * Get the source position information by examining the stack.
+     * @param cx Context
+     * @param linep Array object of length >= 1; getSourcePositionFromStack
+     *              will assign the line number to linep[0].
+     * @return the name of the file or other source container
+     */
+    public String getSourcePositionFromStack(Context cx, int[] linep);
+
+    /**
+     * Given a native stack trace, patch it with script-specific source
+     * and line information
+     * @param ex exception
+     * @param nativeStackTrace the native stack trace
+     * @return patched stack trace
+     */
+    public String getPatchedStack(RhinoException ex,
+                                  String nativeStackTrace);
+
+    /**
+     * Get the script stack for the given exception
+     * @param ex exception from execution
+     * @return list of strings for the stack trace
+     */
+    public List getScriptStack(RhinoException ex);
+
+    /**
+     * Mark the given script to indicate it was created by a call to
+     * eval() or to a Function constructor.
+     * @param script script to mark as from eval
+     */
+    public void setEvalScriptFlag(Script script);
+}