CaRMtl/org/mozilla/javascript/FunctionNode.java
2018-09-04 22:51:42 -04:00

118 lines
3.8 KiB
Java

/* -*- 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) 1997-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Norris Boyd
* 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 java.util.ArrayList;
import java.util.HashMap;
public class FunctionNode extends ScriptOrFnNode {
public FunctionNode(String name) {
super(Token.FUNCTION);
functionName = name;
}
public String getFunctionName() {
return functionName;
}
public boolean requiresActivation() {
return itsNeedsActivation;
}
public boolean getIgnoreDynamicScope() {
return itsIgnoreDynamicScope;
}
public boolean isGenerator() {
return itsIsGenerator;
}
public void addResumptionPoint(Node target) {
if (generatorResumePoints == null)
generatorResumePoints = new ArrayList<Node>();
generatorResumePoints.add(target);
}
public ArrayList<Node> getResumptionPoints() {
return generatorResumePoints;
}
public HashMap<Node,int[]> getLiveLocals() {
return liveLocals;
}
public void addLiveLocals(Node node, int[] locals) {
if (liveLocals == null)
liveLocals = new HashMap<Node,int[]>();
liveLocals.put(node, locals);
}
/**
* There are three types of functions that can be defined. The first
* is a function statement. This is a function appearing as a top-level
* statement (i.e., not nested inside some other statement) in either a
* script or a function.
*
* The second is a function expression, which is a function appearing in
* an expression except for the third type, which is...
*
* The third type is a function expression where the expression is the
* top-level expression in an expression statement.
*
* The three types of functions have different treatment and must be
* distinguished.
*/
public static final int FUNCTION_STATEMENT = 1;
public static final int FUNCTION_EXPRESSION = 2;
public static final int FUNCTION_EXPRESSION_STATEMENT = 3;
public int getFunctionType() {
return itsFunctionType;
}
String functionName;
int itsFunctionType;
boolean itsNeedsActivation;
boolean itsIgnoreDynamicScope;
boolean itsIsGenerator;
ArrayList<Node> generatorResumePoints;
HashMap<Node,int[]> liveLocals;
}