/*******************************************************************************
* Copyright (c) 2000, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.core.jdom;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.jdom.*;
import org.eclipse.jdt.internal.core.util.Messages;
import org.eclipse.jdt.internal.core.util.CharArrayBuffer;
import org.eclipse.jdt.internal.core.util.Util;
/**
* DOMInitializer provides an implementation of IDOMInitializer.
*
* @see IDOMInitializer
* @see DOMNode
* @deprecated The JDOM was made obsolete by the addition in 2.0 of the more
* powerful, fine-grained DOM/AST API found in the
* org.eclipse.jdt.core.dom package.
*/
class DOMInitializer extends DOMMember implements IDOMInitializer {
/**
* The contents of the initializer's body when the
* body has been altered from the contents in the
* document, otherwise <code>null</code>.
*/
protected String fBody;
/**
* The original inclusive source range of the
* body in the document.
*/
protected int[] fBodyRange;
/**
* Constructs an empty initializer node.
*/
DOMInitializer() {
// Constructs an empty initializer node
}
/**
* Creates a new detailed INITIALIZER document fragment on the given range of the document.
*
* @param document - the document containing this node's original contents
* @param sourceRange - a two element array of integers describing the
* entire inclusive source range of this node within its document.
* Contents start on and include the character at the first position.
* Contents end on and include the character at the last position.
* An array of -1's indicates this node's contents do not exist
* in the document.
* @param commentRange - a two element array describing the comments that precede
* the member declaration. The first matches the start of this node's
* sourceRange, and the second is the new-line or first non-whitespace
* character following the last comment. If no comments are present,
* this array contains two -1's.
* @param flags - an integer representing the modifiers for this member. The
* integer can be analyzed with org.eclipse.jdt.core.Flags
* @param modifierRange - a two element array describing the location of
* modifiers for this member within its source range. The first integer
* is the first character of the first modifier for this member, and
* the second integer is the last whitespace character preceeding the
* next part of this member declaration. If there are no modifiers present
* in this node's source code (that is, package default visibility), this array
* contains two -1's.
* @param bodyStartPosition - the position of the open brace of the body
* of this initialzer.
*/
DOMInitializer(char[] document, int[] sourceRange, int[] commentRange, int flags, int[] modifierRange, int bodyStartPosition) {
super(document, sourceRange, null, new int[]{-1, -1}, commentRange, flags, modifierRange);
this.fBodyRange= new int[2];
this.fBodyRange[0]= bodyStartPosition;
this.fBodyRange[1]= sourceRange[1];
setHasBody(true);
setMask(MASK_DETAILED_SOURCE_INDEXES, true);
}
/**
* Creates a new simple INITIALIZER document fragment on the given range of the document.
*
* @param document - the document containing this node's original contents
* @param sourceRange - a two element array of integers describing the
* entire inclusive source range of this node within its document.
* Contents start on and include the character at the first position.
* Contents end on and include the character at the last position.
* An array of -1's indicates this node's contents do not exist
* in the document.
* @param flags - an integer representing the modifiers for this member. The
* integer can be analyzed with org.eclipse.jdt.core.Flags
*/
DOMInitializer(char[] document, int[] sourceRange, int flags) {
this(document, sourceRange, new int[] {-1, -1}, flags, new int[] {-1, -1}, -1);
setMask(MASK_DETAILED_SOURCE_INDEXES, false);
}
/**
* @see DOMMember#appendMemberBodyContents(CharArrayBuffer)
*/
protected void appendMemberBodyContents(CharArrayBuffer buffer) {
if (hasBody()) {
buffer
.append(getBody())
.append(this.fDocument, this.fBodyRange[1] + 1, this.fSourceRange[1] - this.fBodyRange[1]);
} else {
buffer.append("{}").append(Util.getLineSeparator(buffer.toString(), null)); //$NON-NLS-1$
}
}
/**
* @see DOMMember#appendMemberDeclarationContents(CharArrayBuffer)
*/
protected void appendMemberDeclarationContents(CharArrayBuffer buffer) {
// nothing to do
}
/**
* @see DOMMember#appendSimpleContents(CharArrayBuffer)
*/
protected void appendSimpleContents(CharArrayBuffer buffer) {
// append eveything before my name
buffer.append(this.fDocument, this.fSourceRange[0], this.fNameRange[0] - this.fSourceRange[0]);
// append my name
buffer.append(this.fName);
// append everything after my name
buffer.append(this.fDocument, this.fNameRange[1] + 1, this.fSourceRange[1] - this.fNameRange[1]);
}
/**
* @see IDOMInitializer#getBody()
*/
public String getBody() {
becomeDetailed();
if (hasBody()) {
if (this.fBody != null) {
return this.fBody;
} else {
return new String(this.fDocument, this.fBodyRange[0], this.fBodyRange[1] + 1 - this.fBodyRange[0]);
}
} else {
return null;
}
}
/**
* @see DOMNode#getDetailedNode()
*/
protected DOMNode getDetailedNode() {
return (DOMNode)getFactory().createInitializer(getContents());
}
/**
* @see IDOMNode#getJavaElement
*/
public IJavaElement getJavaElement(IJavaElement parent) throws IllegalArgumentException {
if (parent.getElementType() == IJavaElement.TYPE) {
int count = 1;
IDOMNode previousNode = getPreviousNode();
while (previousNode != null) {
if (previousNode instanceof DOMInitializer) {
count++;
}
previousNode = previousNode.getPreviousNode();
}
return ((IType) parent).getInitializer(count);
} else {
throw new IllegalArgumentException(Messages.element_illegalParent);
}
}
/**
* @see DOMMember#getMemberDeclarationStartPosition()
*/
protected int getMemberDeclarationStartPosition() {
return this.fBodyRange[0];
}
/**
* @see IDOMNode#getNodeType()
*/
public int getNodeType() {
return IDOMNode.INITIALIZER;
}
/**
* @see IDOMNode#isSignatureEqual(IDOMNode)
*
* <p>This method always answers false since an initializer
* does not have a signature.
*/
public boolean isSignatureEqual(IDOMNode node) {
return false;
}
/**
* @see DOMNode
*/
protected DOMNode newDOMNode() {
return new DOMInitializer();
}
/**
* Offsets all the source indexes in this node by the given amount.
*/
protected void offset(int offset) {
super.offset(offset);
offsetRange(this.fBodyRange, offset);
}
/**
* @see IDOMInitializer#setBody(String)
*/
public void setBody(String body) {
becomeDetailed();
this.fBody= body;
setHasBody(body != null);
fragment();
}
/**
* @see IDOMInitializer#setName(String)
*/
public void setName(String name) {
// initializers have no name
}
/**
* @see DOMNode#shareContents(DOMNode)
*/
protected void shareContents(DOMNode node) {
super.shareContents(node);
DOMInitializer init= (DOMInitializer)node;
this.fBody= init.fBody;
this.fBodyRange= rangeCopy(init.fBodyRange);
}
/**
* @see IDOMNode#toString()
*/
public String toString() {
return "INITIALIZER"; //$NON-NLS-1$
}
}