119 lines
4.3 KiB
Java
119 lines
4.3 KiB
Java
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* Contributor(s):
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* Norris Boyd
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*
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* Alternatively, the contents of this file may be used under the terms of
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* the GNU General Public License Version 2 or later (the "GPL"), in which
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* case the provisions of the GPL are applicable instead of those above. If
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* you wish to allow use of your version of this file only under the terms of
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* the GPL and not to allow others to use your version of this file under the
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* MPL, indicate your decision by deleting the provisions above and replacing
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* them with the notice and other provisions required by the GPL. If you do
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* not delete the provisions above, a recipient may use your version of this
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* file under either the MPL or the GPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.javascript;
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import java.util.List;
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/**
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* Abstraction of evaluation, which can be implemented either by an
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* interpreter or compiler.
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*/
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public interface Evaluator {
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/**
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* Compile the script or function from intermediate representation
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* tree into an executable form.
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*
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* @param compilerEnv Compiler environment
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* @param tree intermediate representation
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* @param encodedSource encoding of the source code for decompilation
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* @param returnFunction if true, compiling a function
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* @return an opaque object that can be passed to either
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* createFunctionObject or createScriptObject, depending on the
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* value of returnFunction
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*/
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public Object compile(CompilerEnvirons compilerEnv,
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ScriptOrFnNode tree,
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String encodedSource,
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boolean returnFunction);
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/**
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* Create a function object.
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*
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* @param cx Current context
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* @param scope scope of the function
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* @param bytecode opaque object returned by compile
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* @param staticSecurityDomain security domain
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* @return Function object that can be called
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*/
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public Function createFunctionObject(Context cx, Scriptable scope,
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Object bytecode, Object staticSecurityDomain);
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/**
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* Create a script object.
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*
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* @param bytecode opaque object returned by compile
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* @param staticSecurityDomain security domain
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* @return Script object that can be evaluated
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*/
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public Script createScriptObject(Object bytecode,
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Object staticSecurityDomain);
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/**
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* Capture stack information from the given exception.
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* @param ex an exception thrown during execution
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*/
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public void captureStackInfo(RhinoException ex);
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/**
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* Get the source position information by examining the stack.
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* @param cx Context
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* @param linep Array object of length >= 1; getSourcePositionFromStack
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* will assign the line number to linep[0].
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* @return the name of the file or other source container
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*/
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public String getSourcePositionFromStack(Context cx, int[] linep);
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/**
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* Given a native stack trace, patch it with script-specific source
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* and line information
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* @param ex exception
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* @param nativeStackTrace the native stack trace
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* @return patched stack trace
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*/
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public String getPatchedStack(RhinoException ex,
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String nativeStackTrace);
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/**
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* Get the script stack for the given exception
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* @param ex exception from execution
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* @return list of strings for the stack trace
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*/
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public List<String> getScriptStack(RhinoException ex);
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/**
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* Mark the given script to indicate it was created by a call to
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* eval() or to a Function constructor.
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* @param script script to mark as from eval
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*/
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public void setEvalScriptFlag(Script script);
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}
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