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/*
* ModifierList.java 1.0
*
* @see io.devnulllabs.openjava.ptree.ParseTree
* @version last updated: 06/11/97
* @author Michiaki Tatsubori
*/
package io.devnulllabs.openjava.ptree;
import java.lang.reflect.Modifier;
import io.devnulllabs.openjava.ptree.util.ParseTreeVisitor;
/**
* The ModifierList class presents for the node of parse tree
* of qualified name.
* This is a List of String for extended modifiers.
*/
public class ModifierList extends List {
/*
* Access modifier flag constants from <em>The Java Virtual
* Machine Specification</em>, Table 4.1.
*/
public static final int PUBLIC = Modifier.PUBLIC;
public static final int PROTECTED = Modifier.PROTECTED;
public static final int PRIVATE = Modifier.PRIVATE;
public static final int STATIC = Modifier.STATIC;
public static final int FINAL = Modifier.FINAL;
public static final int SYNCHRONIZED = Modifier.SYNCHRONIZED;
public static final int VOLATILE = Modifier.VOLATILE;
public static final int TRANSIENT = Modifier.TRANSIENT;
public static final int NATIVE = Modifier.NATIVE;
// public static final int INTERFACE = Modifier.INTERFACE;
public static final int ABSTRACT = Modifier.ABSTRACT;
// public static final int STRICT = Modifier.STRICT;
// public static final int EXPLICIT = Modifier.EXPLICIT;
public static final int EMPTY = 0;
private int mod = 0;
public ModifierList() {
super(" ");
}
public ModifierList(String e0) {
super(" ", e0);
}
public ModifierList(int mod) {
this();
this.mod = mod;
}
public String toString() {
return toString(this.getRegular());
}
/**
* Return a string describing the access modifier flags in
* the specified modifier. For example:
* <blockquote><pre>
* public final synchronized
* private transient volatile
* </pre></blockquote>
* The modifier names are return in canonical order, as
* specified by <em>The Java Language Specification</em>.
*/
public static String toString(int mod) {
StringBuffer sb = new StringBuffer();
int len;
if ((mod & PUBLIC) != 0)
sb.append("public ");
if ((mod & PRIVATE) != 0)
sb.append("private ");
if ((mod & PROTECTED) != 0)
sb.append("protected ");
/* Canonical order */
if ((mod & ABSTRACT) != 0)
sb.append("abstract ");
if ((mod & STATIC) != 0)
sb.append("static ");
if ((mod & FINAL) != 0)
sb.append("final ");
if ((mod & TRANSIENT) != 0)
sb.append("transient ");
if ((mod & VOLATILE) != 0)
sb.append("volatile ");
if ((mod & NATIVE) != 0)
sb.append("native ");
if ((mod & SYNCHRONIZED) != 0)
sb.append("synchronized ");
// if ((mod & INTERFACE) != 0) sb.append( "interface " );
// if ((mod & STRICT) != 0) sb.append( "strict " );
// if ((mod & EXPLICIT) != 0) sb.append( "explicit " );
if ((len = sb.length()) > 0) /* trim trailing space */
return sb.toString().substring(0, len - 1);
return "";
}
public boolean isEmpty() {
return (super.isEmpty() && getRegular() == EMPTY);
}
public boolean isEmptyAsRegular() {
return (getRegular() == EMPTY);
}
public boolean contains(String str) {
if (str == null)
return false;
if (str.equals("public") && contains(PUBLIC))
return true;
if (str.equals("private") && contains(PRIVATE))
return true;
if (str.equals("protected") && contains(PROTECTED))
return true;
if (str.equals("abstract") && contains(ABSTRACT))
return true;
if (str.equals("static") && contains(STATIC))
return true;
if (str.equals("final") && contains(FINAL))
return true;
if (str.equals("transient") && contains(TRANSIENT))
return true;
if (str.equals("volatile") && contains(VOLATILE))
return true;
if (str.equals("native") && contains(NATIVE))
return true;
if (str.equals("synchronized") && contains(SYNCHRONIZED)) {
return true;
}
return super.contains(str);
}
public boolean contains(int mod) {
return ((this.mod & mod) != 0);
}
/**
* Gets the specified element at
*
* @param n
*/
public String get(int n) {
return (String) contents_elementAt(n);
}
/**
* Sets the specified element at the specified place of the list
*
* @param p element
* @param n the number where to set element
*/
public void set(int n, String p) {
contents_setElementAt(p, n);
}
/**
* Adds the specified element after the list
* This causes side-effect.
*
* @param p a modifier to be inserted into the list
*/
public void add(int mod) {
this.mod |= mod;
}
/**
* Adds the specified element after the list
* This causes side-effect.
*
* @param p a modifier to be inserted into the list
*/
public void add(String p) {
contents_addElement(p);
}
/**
* Removes an element at the specified point from this list
*
* @param n where to remove element.
*/
public String remove(int n) {
String removed = (String) contents_elementAt(n);
contents_removeElementAt(n);
return removed;
}
/**
* Inserts the specified element into the list
* before the specified element of the list.
* This causes side-effect.
*
* @param p the element to be inserted into the list
* @param n number of the element before which insertion ocuurs
*/
public void insertElementAt(String p, int n) {
contents_insertElementAt(p, n);
}
/**
* Appends a list after this list.
*
* @param lst a list to be appended
*/
public void append(ModifierList lst) {
this.mod |= lst.getRegular();
for (int i = 0; i < lst.size(); i++) {
contents_addElement(lst.get(i));
}
}
public int getRegular() {
return this.mod;
}
public void setRegular(int mod) {
this.mod = mod;
}
public void accept(ParseTreeVisitor v) throws ParseTreeException {
v.visit(this);
}
}
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