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The DCTree.java Java example source code
/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.javac.tree;
import javax.tools.Diagnostic;
import com.sun.source.doctree.*;
import com.sun.tools.javac.parser.Tokens.Comment;
import com.sun.tools.javac.util.Assert;
import com.sun.tools.javac.util.DiagnosticSource;
import com.sun.tools.javac.util.JCDiagnostic;
import com.sun.tools.javac.util.JCDiagnostic.SimpleDiagnosticPosition;
import com.sun.tools.javac.util.List;
import com.sun.tools.javac.util.Name;
import com.sun.tools.javac.util.Position;
import java.io.IOException;
import java.io.StringWriter;
import javax.tools.JavaFileObject;
/**
* <p>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own risk.
* This code and its internal interfaces are subject to change or
* deletion without notice.</b>
*/
public abstract class DCTree implements DocTree {
/**
* The position in the comment string.
* Use {@link #getSourcePosition getSourcePosition} to convert
* it to a position in the source file.
*
* TODO: why not simply translate all these values into
* source file positions? Is it useful to have string-offset
* positions as well?
*/
public int pos;
public long getSourcePosition(DCDocComment dc) {
return dc.comment.getSourcePos(pos);
}
public JCDiagnostic.DiagnosticPosition pos(DCDocComment dc) {
return new SimpleDiagnosticPosition(dc.comment.getSourcePos(pos));
}
/** Convert a tree to a pretty-printed string. */
@Override
public String toString() {
StringWriter s = new StringWriter();
try {
new DocPretty(s).print(this);
}
catch (IOException e) {
// should never happen, because StringWriter is defined
// never to throw any IOExceptions
throw new AssertionError(e);
}
return s.toString();
}
public static abstract class DCEndPosTree<T extends DCEndPosTree extends DCTree {
private int endPos = Position.NOPOS;
public int getEndPos(DCDocComment dc) {
return dc.comment.getSourcePos(endPos);
}
@SuppressWarnings("unchecked")
public T setEndPos(int endPos) {
this.endPos = endPos;
return (T) this;
}
}
public static class DCDocComment extends DCTree implements DocCommentTree {
public final Comment comment; // required for the implicit source pos table
public final List<DCTree> firstSentence;
public final List<DCTree> body;
public final List<DCTree> tags;
public DCDocComment(Comment comment,
List<DCTree> firstSentence, List body, List tags) {
this.comment = comment;
this.firstSentence = firstSentence;
this.body = body;
this.tags = tags;
}
public Kind getKind() {
return Kind.DOC_COMMENT;
}
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitDocComment(this, d);
}
public List<? extends DocTree> getFirstSentence() {
return firstSentence;
}
public List<? extends DocTree> getBody() {
return body;
}
public List<? extends DocTree> getBlockTags() {
return tags;
}
}
public static abstract class DCBlockTag extends DCTree implements BlockTagTree {
public String getTagName() {
return getKind().tagName;
}
}
public static abstract class DCInlineTag extends DCEndPosTree<DCInlineTag> implements InlineTagTree {
public String getTagName() {
return getKind().tagName;
}
}
public static class DCAttribute extends DCTree implements AttributeTree {
public final Name name;
public final ValueKind vkind;
public final List<DCTree> value;
DCAttribute(Name name, ValueKind vkind, List<DCTree> value) {
Assert.check((vkind == ValueKind.EMPTY) ? (value == null) : (value != null));
this.name = name;
this.vkind = vkind;
this.value = value;
}
@Override
public Kind getKind() {
return Kind.ATTRIBUTE;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitAttribute(this, d);
}
@Override
public Name getName() {
return name;
}
@Override
public ValueKind getValueKind() {
return vkind;
}
@Override
public List<DCTree> getValue() {
return value;
}
}
public static class DCAuthor extends DCBlockTag implements AuthorTree {
public final List<DCTree> name;
DCAuthor(List<DCTree> name) {
this.name = name;
}
@Override
public Kind getKind() {
return Kind.AUTHOR;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitAuthor(this, d);
}
@Override
public List<? extends DocTree> getName() {
return name;
}
}
public static class DCComment extends DCTree implements CommentTree {
public final String body;
DCComment(String body) {
this.body = body;
}
@Override
public Kind getKind() {
return Kind.COMMENT;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitComment(this, d);
}
@Override
public String getBody() {
return body;
}
}
public static class DCDeprecated extends DCBlockTag implements DeprecatedTree {
public final List<DCTree> body;
DCDeprecated(List<DCTree> body) {
this.body = body;
}
@Override
public Kind getKind() {
return Kind.DEPRECATED;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitDeprecated(this, d);
}
@Override
public List<? extends DocTree> getBody() {
return body;
}
}
public static class DCDocRoot extends DCInlineTag implements DocRootTree {
@Override
public Kind getKind() {
return Kind.DOC_ROOT;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitDocRoot(this, d);
}
}
public static class DCEndElement extends DCTree implements EndElementTree {
public final Name name;
DCEndElement(Name name) {
this.name = name;
}
@Override
public Kind getKind() {
return Kind.END_ELEMENT;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitEndElement(this, d);
}
@Override
public Name getName() {
return name;
}
}
public static class DCEntity extends DCTree implements EntityTree {
public final Name name;
DCEntity(Name name) {
this.name = name;
}
@Override
public Kind getKind() {
return Kind.ENTITY;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitEntity(this, d);
}
@Override
public Name getName() {
return name;
}
}
public static class DCErroneous extends DCTree implements ErroneousTree, JCDiagnostic.DiagnosticPosition {
public final String body;
public final JCDiagnostic diag;
DCErroneous(String body, JCDiagnostic.Factory diags, DiagnosticSource diagSource, String code, Object... args) {
this.body = body;
this.diag = diags.error(diagSource, this, code, args);
}
@Override
public Kind getKind() {
return Kind.ERRONEOUS;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitErroneous(this, d);
}
@Override
public String getBody() {
return body;
}
@Override
public Diagnostic<JavaFileObject> getDiagnostic() {
return diag;
}
@Override
public JCTree getTree() {
return null;
}
@Override
public int getStartPosition() {
return pos;
}
@Override
public int getPreferredPosition() {
return pos + body.length() - 1;
}
@Override
public int getEndPosition(EndPosTable endPosTable) {
return pos + body.length();
}
}
public static class DCIdentifier extends DCTree implements IdentifierTree {
public final Name name;
DCIdentifier(Name name) {
this.name = name;
}
@Override
public Kind getKind() {
return Kind.IDENTIFIER;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitIdentifier(this, d);
}
@Override
public Name getName() {
return name;
}
}
public static class DCInheritDoc extends DCInlineTag implements InheritDocTree {
@Override
public Kind getKind() {
return Kind.INHERIT_DOC;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitInheritDoc(this, d);
}
}
public static class DCLink extends DCInlineTag implements LinkTree {
public final Kind kind;
public final DCReference ref;
public final List<DCTree> label;
DCLink(Kind kind, DCReference ref, List<DCTree> label) {
Assert.check(kind == Kind.LINK || kind == Kind.LINK_PLAIN);
this.kind = kind;
this.ref = ref;
this.label = label;
}
@Override
public Kind getKind() {
return kind;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitLink(this, d);
}
@Override
public ReferenceTree getReference() {
return ref;
}
@Override
public List<? extends DocTree> getLabel() {
return label;
}
}
public static class DCLiteral extends DCInlineTag implements LiteralTree {
public final Kind kind;
public final DCText body;
DCLiteral(Kind kind, DCText body) {
Assert.check(kind == Kind.CODE || kind == Kind.LITERAL);
this.kind = kind;
this.body = body;
}
@Override
public Kind getKind() {
return kind;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitLiteral(this, d);
}
@Override
public DCText getBody() {
return body;
}
}
public static class DCParam extends DCBlockTag implements ParamTree {
public final boolean isTypeParameter;
public final DCIdentifier name;
public final List<DCTree> description;
DCParam(boolean isTypeParameter, DCIdentifier name, List<DCTree> description) {
this.isTypeParameter = isTypeParameter;
this.name = name;
this.description = description;
}
@Override
public Kind getKind() {
return Kind.PARAM;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitParam(this, d);
}
@Override
public boolean isTypeParameter() {
return isTypeParameter;
}
@Override
public IdentifierTree getName() {
return name;
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
}
public static class DCReference extends DCEndPosTree<DCReference> implements ReferenceTree {
public final String signature;
// The following are not directly exposed through ReferenceTree
// use DocTrees.getElement(TreePath,ReferenceTree)
public final JCTree qualifierExpression;
public final Name memberName;
public final List<JCTree> paramTypes;
DCReference(String signature, JCTree qualExpr, Name member, List<JCTree> paramTypes) {
this.signature = signature;
qualifierExpression = qualExpr;
memberName = member;
this.paramTypes = paramTypes;
}
@Override
public Kind getKind() {
return Kind.REFERENCE;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitReference(this, d);
}
@Override
public String getSignature() {
return signature;
}
}
public static class DCReturn extends DCBlockTag implements ReturnTree {
public final List<DCTree> description;
DCReturn(List<DCTree> description) {
this.description = description;
}
@Override
public Kind getKind() {
return Kind.RETURN;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitReturn(this, d);
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
}
public static class DCSee extends DCBlockTag implements SeeTree {
public final List<DCTree> reference;
DCSee(List<DCTree> reference) {
this.reference = reference;
}
@Override
public Kind getKind() {
return Kind.SEE;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitSee(this, d);
}
@Override
public List<? extends DocTree> getReference() {
return reference;
}
}
public static class DCSerial extends DCBlockTag implements SerialTree {
public final List<DCTree> description;
DCSerial(List<DCTree> description) {
this.description = description;
}
@Override
public Kind getKind() {
return Kind.SERIAL;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitSerial(this, d);
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
}
public static class DCSerialData extends DCBlockTag implements SerialDataTree {
public final List<DCTree> description;
DCSerialData(List<DCTree> description) {
this.description = description;
}
@Override
public Kind getKind() {
return Kind.SERIAL_DATA;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitSerialData(this, d);
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
}
public static class DCSerialField extends DCBlockTag implements SerialFieldTree {
public final DCIdentifier name;
public final DCReference type;
public final List<DCTree> description;
DCSerialField(DCIdentifier name, DCReference type, List<DCTree> description) {
this.description = description;
this.name = name;
this.type = type;
}
@Override
public Kind getKind() {
return Kind.SERIAL_FIELD;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitSerialField(this, d);
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
@Override
public IdentifierTree getName() {
return name;
}
@Override
public ReferenceTree getType() {
return type;
}
}
public static class DCSince extends DCBlockTag implements SinceTree {
public final List<DCTree> body;
DCSince(List<DCTree> body) {
this.body = body;
}
@Override
public Kind getKind() {
return Kind.SINCE;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitSince(this, d);
}
@Override
public List<? extends DocTree> getBody() {
return body;
}
}
public static class DCStartElement extends DCEndPosTree<DCStartElement> implements StartElementTree {
public final Name name;
public final List<DCTree> attrs;
public final boolean selfClosing;
DCStartElement(Name name, List<DCTree> attrs, boolean selfClosing) {
this.name = name;
this.attrs = attrs;
this.selfClosing = selfClosing;
}
@Override
public Kind getKind() {
return Kind.START_ELEMENT;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitStartElement(this, d);
}
@Override
public Name getName() {
return name;
}
@Override
public List<? extends DocTree> getAttributes() {
return attrs;
}
@Override
public boolean isSelfClosing() {
return selfClosing;
}
}
public static class DCText extends DCTree implements TextTree {
public final String text;
DCText(String text) {
this.text = text;
}
@Override
public Kind getKind() {
return Kind.TEXT;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitText(this, d);
}
@Override
public String getBody() {
return text;
}
}
public static class DCThrows extends DCBlockTag implements ThrowsTree {
public final Kind kind;
public final DCReference name;
public final List<DCTree> description;
DCThrows(Kind kind, DCReference name, List<DCTree> description) {
Assert.check(kind == Kind.EXCEPTION || kind == Kind.THROWS);
this.kind = kind;
this.name = name;
this.description = description;
}
@Override
public Kind getKind() {
return kind;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitThrows(this, d);
}
@Override
public ReferenceTree getExceptionName() {
return name;
}
@Override
public List<? extends DocTree> getDescription() {
return description;
}
}
public static class DCUnknownBlockTag extends DCBlockTag implements UnknownBlockTagTree {
public final Name name;
public final List<DCTree> content;
DCUnknownBlockTag(Name name, List<DCTree> content) {
this.name = name;
this.content = content;
}
@Override
public Kind getKind() {
return Kind.UNKNOWN_BLOCK_TAG;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitUnknownBlockTag(this, d);
}
@Override
public String getTagName() {
return name.toString();
}
@Override
public List<? extends DocTree> getContent() {
return content;
}
}
public static class DCUnknownInlineTag extends DCInlineTag implements UnknownInlineTagTree {
public final Name name;
public final List<DCTree> content;
DCUnknownInlineTag(Name name, List<DCTree> content) {
this.name = name;
this.content = content;
}
@Override
public Kind getKind() {
return Kind.UNKNOWN_INLINE_TAG;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitUnknownInlineTag(this, d);
}
@Override
public String getTagName() {
return name.toString();
}
@Override
public List<? extends DocTree> getContent() {
return content;
}
}
public static class DCValue extends DCInlineTag implements ValueTree {
public final DCReference ref;
DCValue(DCReference ref) {
this.ref = ref;
}
@Override
public Kind getKind() {
return Kind.VALUE;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitValue(this, d);
}
@Override
public ReferenceTree getReference() {
return ref;
}
}
public static class DCVersion extends DCBlockTag implements VersionTree {
public final List<DCTree> body;
DCVersion(List<DCTree> body) {
this.body = body;
}
@Override
public Kind getKind() {
return Kind.VERSION;
}
@Override
public <R, D> R accept(DocTreeVisitor v, D d) {
return v.visitVersion(this, d);
}
@Override
public List<? extends DocTree> getBody() {
return body;
}
}
}
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