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/*******************************************************************************
* Copyright (c) 2004, 2015 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
* Technical University Berlin - extended API and implementation
* Stephan Herrmann - Contribution for
* Bug 466279 - [hovering] IAE on hover when annotation-based null analysis is enabled
*******************************************************************************/
package org.eclipse.jdt.internal.core;
import org.eclipse.jdt.core.*;
import org.eclipse.jdt.core.compiler.CharOperation;
public class TypeParameter extends SourceRefElement implements ITypeParameter {
static final ITypeParameter[] NO_TYPE_PARAMETERS = new ITypeParameter[0];
protected String name;
//{ObjectTeams: value parameter / <B base R>:
public boolean isValueParameter= false;
public boolean hasBaseBound= false;
// SH}
public TypeParameter(JavaElement parent, String name) {
super(parent);
this.name = name;
}
@Override
public boolean equals(Object o) {
if (!(o instanceof TypeParameter)) return false;
return super.equals(o);
}
@Override
public String[] getBounds() throws JavaModelException {
TypeParameterElementInfo info = (TypeParameterElementInfo) getElementInfo();
return CharOperation.toStrings(info.bounds);
}
@Override
public String[] getBoundsSignatures() throws JavaModelException {
String[] boundSignatures = null;
TypeParameterElementInfo info = (TypeParameterElementInfo) this.getElementInfo();
// For a binary type or method, the signature is already available from the .class file.
// No need to construct again
if (this.parent instanceof BinaryMember) {
char[][] boundsSignatures = info.boundsSignatures;
if (boundsSignatures == null || boundsSignatures.length == 0) {
return CharOperation.NO_STRINGS;
}
return CharOperation.toStrings(info.boundsSignatures);
}
char[][] bounds = info.bounds;
if (bounds == null || bounds.length == 0) {
return CharOperation.NO_STRINGS;
}
int boundsLength = bounds.length;
boundSignatures = new String[boundsLength];
for (int i = 0; i < boundsLength; i++) {
boundSignatures[i] = new String(Signature.createCharArrayTypeSignature(bounds[i], false));
}
return boundSignatures;
}
@Override
public IMember getDeclaringMember() {
return (IMember) getParent();
}
@Override
public String getElementName() {
return this.name;
}
@Override
public int getElementType() {
return TYPE_PARAMETER;
}
@Override
protected char getHandleMementoDelimiter() {
return JavaElement.JEM_TYPE_PARAMETER;
}
public String getKey(boolean forceOpen) throws JavaModelException {
StringBuilder buf = new StringBuilder();
if (this.parent instanceof IType) {
if (this.parent instanceof BinaryType)
buf.append(((BinaryType) this.parent).getKey(forceOpen));
else
buf.append(((IType) this.parent).getKey());
} else if (this.parent instanceof IMember) {
if (this.parent instanceof BinaryMember)
buf.append(((BinaryMember) this.parent).getKey(forceOpen));
else
buf.append(((IMethod) this.parent).getKey());
}
buf.append(":T"); //$NON-NLS-1$
buf.append(this.name);
buf.append(';');
return buf.toString();
}
@Override
public ISourceRange getNameRange() throws JavaModelException {
SourceMapper mapper= getSourceMapper();
if (mapper != null) {
// ensure the class file's buffer is open so that source ranges are computed
IClassFile classFile = getClassFile();
if (classFile != null) {
classFile.getBuffer();
return mapper.getNameRange(this);
}
}
TypeParameterElementInfo info = (TypeParameterElementInfo) getElementInfo();
return new SourceRange(info.nameStart, info.nameEnd - info.nameStart + 1);
}
/*
* @see ISourceReference
*/
@Override
public ISourceRange getSourceRange() throws JavaModelException {
SourceMapper mapper= getSourceMapper();
if (mapper != null) {
// ensure the class file's buffer is open so that source ranges are computed
IClassFile classFile = getClassFile();
if (classFile != null) {
classFile.getBuffer();
return mapper.getSourceRange(this);
}
}
return super.getSourceRange();
}
@Override
public IClassFile getClassFile() {
return ((JavaElement)getParent()).getClassFile();
}
/**
* {@inheritDoc}
* @since 3.7
*/
@Override
public ITypeRoot getTypeRoot() {
return this.getDeclaringMember().getTypeRoot();
}
@Override
protected void toStringName(StringBuffer buffer) {
buffer.append('<');
//{ObjectTeams: value parameter?
if (this.isValueParameter) {
try {
buffer.append(getBounds()[0]);
buffer.append(' ');
} catch (JavaModelException ex) {
// no-op.
}
}
// SH}
buffer.append(getElementName());
buffer.append('>');
}
}
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