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A repackaged copy of javac for Error Prone to depend on
/*
* Copyright (c) 2015, 2017, 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.
*/
/**
* The Doclet API provides an environment which, in conjunction with
* the Language Model API and Compiler Tree API, allows clients
* to inspect the source-level structures of programs and
* libraries, including API comments embedded in the source.
*
*
* The {@link StandardDoclet standard doclet} can be used to
* generate HTML-formatted documentation. It supports user-defined
* {@link Taglet taglets}, which can be used to generate customized
* output for user-defined tags in documentation comments.
*
*
* Note: The declarations in this package supersede those
* in the older package {@code com.sun.javadoc}. For details on the
* mapping of old types to new types, see the
* Migration Guide.
*
*
*
* Doclets are invoked by javadoc and this API can be used to write out
* program information to files. For example, the standard doclet is
* invoked by default, to generate HTML documentation.
*
* The invocation is defined by the interface {@link jdk.javadoc.doclet.Doclet}
* -- the {@link jdk.javadoc.doclet.Doclet#run(DocletEnvironment) run} interface
* method, defines the entry point.
*
* public boolean run(DocletEnvironment environment)
*
* The {@link jdk.javadoc.doclet.DocletEnvironment} instance holds the
* environment that the doclet will be initialized with. From this environment
* all other information can be extracted, in the form of
* {@link javax.lang.model.element.Element elements}. One can further use the APIs and utilities
* described by {@link javax.lang.model Language Model API} to query Elements and Types.
* Terminology
*
*
* - Selected
* - An element is considered to be selected, if the
* selection controls allow it
* to be documented. (Note that synthetic elements are never
* selected.)
*
*
* - Specified
* - The set of elements specified by the user are considered to be specified
* elements. Specified elements provide the starting points
* for determining the included elements to be documented.
*
*
* - Included
* - An element is considered to be included, if it is
* specified if it contains a specified element,
* or it is enclosed in a specified element, and is selected.
* Included elements will be documented.
*
*
*
* Options
* Javadoc selection control can be specified with these options
* as follows:
*
* - {@code --show-members:value} and {@code --show-types:value} can
* be used to filter the members, with the following values:
*
* - public -- considers only public elements
*
- protected -- considers public and protected elements
*
- package -- considers public, protected and package private elements
*
- private -- considers all elements
*
*
* - {@code --show-packages:value} "exported" or "all" can be used
* to consider only exported packages or all packages within a module.
*
*
- {@code --show-module-contents:value} can be used to specify the level at
* module declarations could be documented. A value of "api" indicates API
* level documentation, and "all" indicates detailed documentation.
*
* The following options can be used to specify the elements to be documented:
*
* - {@code --module} documents the specified modules.
*
*
- {@code --expand-requires:value} expand the set of modules to be documented
* by including some or all of the modules dependencies. The value may be
* one of:
*
* - transitive -- each module specified explicitly on the command line is
* expanded to include the closure of its transitive dependencies
*
- all -- each module specified explicitly on the command line
* is expanded to include the closure of its transitive dependencies,
* and also all of its direct dependencies
*
* By default, only the specified modules will be considered, without expansion
* of the module dependencies.
*
* - {@code packagenames} can be used to specify packages.
*
- {@code -subpackages} can be used to recursively load packages.
*
- {@code -exclude} can be used exclude package directories.
*
- {@code sourcefilenames} can be used to specify source file names.
*
* Interactions with older options.
*
* The new {@code --show-*} options provide a more detailed replacement
* for the older options -public, -protected, -package, -private.
* Alternatively, the older options can continue to be used as shorter
* forms for combinations of the new options, as described below:
Short form options mapping
Older option Equivalent to these values with the new option
{@code --show-members} {@code --show-types} {@code --show-packages} {@code --show-module-contents}
{@code -public} public public exported api
{@code -protected} protected protected exported api
{@code -package} package package all all
{@code -private} private private all all
*
*
* A qualified element name is one that has its package
* name prepended to it, such as {@code java.lang.String}. A non-qualified
* name has no package name, such as {@code String}.
*
Example
*
* The following is an example doclet that displays information of a class
* and its members, supporting an option.
*
* // note imports deleted for clarity
* public class Example implements Doclet {
* Reporter reporter;
* @Override
* public void init(Locale locale, Reporter reporter) {
* reporter.print(Kind.NOTE, "Doclet using locale: " + locale);
* this.reporter = reporter;
* }
*
* public void printElement(DocTrees trees, Element e) {
* DocCommentTree docCommentTree = trees.getDocCommentTree(e);
* if (docCommentTree != null) {
* System.out.println("Element (" + e.getKind() + ": "
* + e + ") has the following comments:");
* System.out.println("Entire body: " + docCommentTree.getFullBody());
* System.out.println("Block tags: " + docCommentTree.getBlockTags());
* }
* }
*
* @Override
* public boolean run(DocletEnvironment docEnv) {
* reporter.print(Kind.NOTE, "overviewfile: " + overviewfile);
* // get the DocTrees utility class to access document comments
* DocTrees docTrees = docEnv.getDocTrees();
*
* // location of an element in the same directory as overview.html
* try {
* Element e = ElementFilter.typesIn(docEnv.getSpecifiedElements()).iterator().next();
* DocCommentTree docCommentTree
* = docTrees.getDocCommentTree(e, overviewfile);
* if (docCommentTree != null) {
* System.out.println("Overview html: " + docCommentTree.getFullBody());
* }
* } catch (IOException missing) {
* reporter.print(Kind.ERROR, "No overview.html found.");
* }
*
* for (TypeElement t : ElementFilter.typesIn(docEnv.getIncludedElements())) {
* System.out.println(t.getKind() + ":" + t);
* for (Element e : t.getEnclosedElements()) {
* printElement(docTrees, e);
* }
* }
* return true;
* }
*
* @Override
* public String getName() {
* return "Example";
* }
*
* private String overviewfile;
*
* @Override
* public Set<? extends Option> getSupportedOptions() {
* Option[] options = {
* new Option() {
* private final List<String> someOption = Arrays.asList(
* "-overviewfile",
* "--overview-file",
* "-o"
* );
*
* @Override
* public int getArgumentCount() {
* return 1;
* }
*
* @Override
* public String getDescription() {
* return "an option with aliases";
* }
*
* @Override
* public Option.Kind getKind() {
* return Option.Kind.STANDARD;
* }
*
* @Override
* public List<String> getNames() {
* return someOption;
* }
*
* @Override
* public String getParameters() {
* return "file";
* }
*
* @Override
* public boolean process(String opt, List<String> arguments) {
* overviewfile = arguments.get(0);
* return true;
* }
* }
* };
* return new HashSet<>(Arrays.asList(options));
* }
*
* @Override
* public SourceVersion getSupportedSourceVersion() {
* // support the latest release
* return SourceVersion.latest();
* }
* }
*
*
* This doclet can be invoked with a command line, such as:
*
* javadoc -doclet Example \
* -overviewfile overview.html \
* -sourcepath source-location \
* source-location/Example.java
*
*
* Migration Guide
*
* Many of the types in the old {@code com.sun.javadoc} API do not have equivalents in this
* package. Instead, types in the {@code javax.lang.model} and {@code com.sun.source} APIs
* are used instead.
*
*
The following table gives a guide to the mapping from old types to their replacements.
* In some cases, there is no direct equivalent.
*
*
Guide for mapping old types to new types
Old Type New Type
AnnotatedType javax.lang.model.type.Type
AnnotationDesc javax.lang.model.element.AnnotationMirror
AnnotationDesc.ElementValuePair javax.lang.model.element.AnnotationValue
AnnotationTypeDoc javax.lang.model.element.TypeElement
AnnotationTypeElementDoc javax.lang.model.element.ExecutableElement
AnnotationValue javax.lang.model.element.AnnotationValue
ClassDoc javax.lang.model.element.TypeElement
ConstructorDoc javax.lang.model.element.ExecutableElement
Doc javax.lang.model.element.Element
DocErrorReporter jdk.javadoc.doclet.Reporter
Doclet jdk.javadoc.doclet.Doclet
ExecutableMemberDoc javax.lang.model.element.ExecutableElement
FieldDoc javax.lang.model.element.VariableElement
LanguageVersion javax.lang.model.SourceVersion
MemberDoc javax.lang.model.element.Element
MethodDoc javax.lang.model.element.ExecutableElement
PackageDoc javax.lang.model.element.PackageElement
Parameter javax.lang.model.element.VariableElement
ParameterizedType javax.lang.model.type.DeclaredType
ParamTag com.sun.source.doctree.ParamTree
ProgramElementDoc javax.lang.model.element.Element
RootDoc jdk.javadoc.doclet.DocletEnvironment
SeeTag com.sun.source.doctree.LinkTree
com.sun.source.doctree.SeeTree
SerialFieldTag com.sun.source.doctree.SerialFieldTree
SourcePosition com.sun.source.util.SourcePositions
Tag com.sun.source.doctree.DocTree
ThrowsTag com.sun.source.doctree.ThrowsTree
Type javax.lang.model.type.Type
TypeVariable javax.lang.model.type.TypeVariable
WildcardType javax.lang.model.type.WildcardType
*
*
* @see jdk.javadoc.doclet.Doclet
* @see jdk.javadoc.doclet.DocletEnvironment
* @since 9
*/
package jdk.javadoc.doclet;