Java 类com.sun.source.tree.ModuleTree 实例源码

@NonNull
private static Set<URL> collectRequiredModules(
        @NonNull final ModuleElement module,
        @NullAllowed final ModuleTree moduleTree,
        final boolean transitive,
        final boolean includeTopLevel,
        @NonNull final Map<String,List<URL>> modulesByName) {
    final Set<URL> res = new HashSet<>();
    final Set<ModuleElement> seen = new HashSet<>();
    if (includeTopLevel) {
        final List<URL> moduleLocs = modulesByName.get(module.getQualifiedName().toString());
        if (moduleLocs != null) {
            res.addAll(moduleLocs);
        }
    }
    collectRequiredModulesImpl(module, moduleTree, transitive, !includeTopLevel, modulesByName, seen, res);
    return res;
}

@Override
public Context visitModule(ModuleTree node, Void p) {
    final ModuleElement module = (ModuleElement) trees.getElement(getCurrentPath());
    if (module != null) {
        ctx.pos.put(module, this.sourcePositions.getStartPosition(cu, node));
        final List<? extends ModuleElement.Directive> de = module.getDirectives();
        final List<? extends DirectiveTree> dt = node.getDirectives();
        for (int i = 0, j = 0; i < de.size() ; i++) {
            if (isImportant(de.get(i))) {
                ctx.directives.put(de.get(i), dt.get(j));
                ctx.pos.put(de.get(i), this.sourcePositions.getStartPosition(cu, dt.get(j)));
                j += 1;
            }
        }
    }
    return super.visitModule(node, p);
}

private static TreePath adjustPathForModuleName(TreePath path) {
    TreePath tp = path;
    while (tp != null && (tp.getLeaf().getKind() == Kind.IDENTIFIER || tp.getLeaf().getKind() == Kind.MEMBER_SELECT)) {
        Tree parent = tp.getParentPath().getLeaf();
        if (parent.getKind() == Kind.MODULE && ((ModuleTree)parent).getName() == tp.getLeaf()) {
            return tp.getParentPath();
        }
        if (parent.getKind() == Kind.REQUIRES && ((RequiresTree)parent).getModuleName() == tp.getLeaf()
                || parent.getKind() == Kind.EXPORTS && ((ExportsTree)parent).getModuleNames() != null && ((ExportsTree)parent).getModuleNames().contains(tp.getLeaf())
                || parent.getKind() == Kind.OPENS && ((OpensTree)parent).getModuleNames() != null && ((OpensTree)parent).getModuleNames().contains(tp.getLeaf())) {
            return tp;
        }
        tp = tp.getParentPath();
    }
    return path;
}

private void addRequires(FileObject createdFile, Set<String> requiredModuleNames) throws IOException {
    if (requiredModuleNames == null) {
        requiredModuleNames = new LinkedHashSet<>();
        ClassPath modulePath = ClassPath.getClassPath(createdFile, JavaClassPathConstants.MODULE_COMPILE_PATH);
        for (FileObject root : modulePath.getRoots()) {
            String name = SourceUtils.getModuleName(root.toURL(), true);
            if (name != null) {
                requiredModuleNames.add(name);
            }
        }
    }
    if (!requiredModuleNames.isEmpty()) {
        final JavaSource src = JavaSource.forFileObject(createdFile);
        if (src != null) {
            final Set<String> mNames = requiredModuleNames;
            src.runModificationTask((WorkingCopy copy) -> {
                copy.toPhase(JavaSource.Phase.RESOLVED);
                TreeMaker tm = copy.getTreeMaker();
                ModuleTree modle = (ModuleTree) copy.getCompilationUnit().getTypeDecls().get(0);
                ModuleTree newModle = modle;
                for (String mName : mNames) {
                    newModle = tm.addModuleDirective(newModle, tm.Requires(false, false, tm.QualIdent(mName)));
                }
                copy.rewrite(modle, newModle);
            }).commit();
        }
    }
}

@CheckForNull
public static String parseModuleName(
        @NonNull final FileObject moduleInfo) {
    final JavacTaskImpl jt = JavacParser.createJavacTask(
            new ClasspathInfo.Builder(ClassPath.EMPTY).build(),
            null,
            "1.3",  //min sl to prevent validateSourceLevel warning
            null,
            null,
            null,
            null,
            null,
            Collections.singletonList(FileObjects.fileObjectFileObject(
                moduleInfo,
                moduleInfo.getParent(),
                null,
                FileEncodingQuery.getEncoding(moduleInfo))));
        final CompilationUnitTree cu =  jt.parse().iterator().next();
        final List<? extends Tree> typeDecls = cu.getTypeDecls();
        if (!typeDecls.isEmpty()) {
            final Tree typeDecl = typeDecls.get(0);
            if (typeDecl.getKind() == Tree.Kind.MODULE) {
                return ((ModuleTree)typeDecl).getName().toString();
            }
        }
    return null;
}

@Override
public Tree visitModule(ModuleTree tree, Void p) {
    ModuleTree n = make.Module(make.Modifiers(0, tree.getAnnotations()), tree.getModuleType(), tree.getName(), tree.getDirectives());
    model.setType(n, model.getType(tree));
    comments.copyComments(tree, n);
    model.setPos(n, model.getPos(tree));
    return n;
}

private static void addRequires(FileObject moduleInfo, List<String> newModules) {
    final JavaSource src = JavaSource.forFileObject(moduleInfo);
    if (src == null) {
        return;
    }

    Set<String> declaredModuleNames = getDeclaredModules(src);
    Set<String> requiredModuleNames = new LinkedHashSet<>();
    for (String  name : newModules) {
        if (name != null && !declaredModuleNames.contains(name)) {
            requiredModuleNames.add(name);
        }
    }

    log("To be addded modules:", requiredModuleNames); // NOI18N
    if (!requiredModuleNames.isEmpty()) {
        final Set<String> mNames = requiredModuleNames;
        try {
            src.runModificationTask((WorkingCopy copy) -> {
                copy.toPhase(JavaSource.Phase.RESOLVED);
                TreeMaker tm = copy.getTreeMaker();
                ModuleTree modle = (ModuleTree) copy.getCompilationUnit().getTypeDecls().get(0);
                ModuleTree newModle = modle;
                for (String mName : mNames) {
                    newModle = tm.addModuleDirective(newModle, tm.Requires(false, false, tm.QualIdent(mName)));
                }
                copy.rewrite(modle, newModle);
            }).commit();
        } catch (IOException ex) {
            LOG.log(Level.WARNING, null, ex);
        }
    }
}

@CheckForNull
private static String getModuleName(@NonNull final FileObject moduleInfo) {
    try {
        final String[] res = new String[1];
        final JavaSource src = JavaSource.forFileObject(moduleInfo);
        if (src != null) {
            src.runUserActionTask((cc) -> {
                cc.toPhase(JavaSource.Phase.PARSED);
                final CompilationUnitTree cu = cc.getCompilationUnit();
                for (Tree decl : cu.getTypeDecls()) {
                    if (decl.getKind().name().equals("MODULE")) {
                        res[0] = ((ModuleTree)decl).getName().toString();
                        break;
                    }
                }
            }, true);
        }
        return res[0];
    } catch (IOException ioe) {
        LOG.log(
                Level.WARNING,
                "Cannot read module declaration in: {0} due to: {1}",   //NOI18N
                new Object[]{
                    FileUtil.getFileDisplayName(moduleInfo),
                    ioe.getMessage()
                });
        return null;
    }
}

@NonNull
private static Set<FileObject> readExports(
    @NonNull final FileObject moduleInfo,
    @NonNull final Set<FileObject> roots) {
    final Set<FileObject> exports = new HashSet<>();
    final JavaSource src = JavaSource.forFileObject(moduleInfo);
    if (src != null) {
        try {
            src.runUserActionTask((cc) -> {
                cc.toPhase(JavaSource.Phase.RESOLVED);
                final CompilationUnitTree cu = cc.getCompilationUnit();
                if (cu.getTypeDecls().size() == 1 && cu.getTypeDecls().get(0) instanceof ModuleTree) {
                    final ModuleTree mt = (ModuleTree) cu.getTypeDecls().get(0);
                    final ModuleElement me = (ModuleElement) cc.getTrees().getElement(TreePath.getPath(cu, mt));
                    if (me != null) {
                        for (ModuleElement.Directive directive : me.getDirectives()) {
                            if (directive.getKind() == ModuleElement.DirectiveKind.EXPORTS) {
                                final ModuleElement.ExportsDirective export = (ModuleElement.ExportsDirective) directive;
                                final String pkgName = export.getPackage().getQualifiedName().toString();
                                exports.addAll(findPackage(pkgName, roots));
                            }
                        }
                    }
                }
            }, true);
        } catch (IOException ioe) {
            Exceptions.printStackTrace(ioe);
        }
    }
    return exports;
}

@Override
public Void visitModule(ModuleTree tree, List<Node> d) {
    List<Node> below = new ArrayList<Node>();

    addCorrespondingElement(below);
    addCorrespondingType(below);
    addCorrespondingComments(below);
    super.visitModule(tree, below);

    d.add(new TreeNode(info, getCurrentPath(), below));
    return null;
}

private TreePath refinePath(final TreePath path) {
    TreePath tp = path;
    Tree last = null;
    while(tp != null) {
        if (tp.getLeaf().getKind() == Tree.Kind.MODULE && ((ModuleTree)tp.getLeaf()).getName() == last) {
            return tp;
        }
        last = tp.getLeaf();
        tp = tp.getParentPath();
    }
    return path;
}

@Override
public Tree visitModule(ModuleElement e, Void p) {
    ModifiersTree mods = make.Modifiers(e.getModifiers());
    ModuleTree.ModuleKind kind = wc.getElementUtilities().isOpen(e) ? ModuleTree.ModuleKind.OPEN : ModuleTree.ModuleKind.STRONG;
    List<DirectiveTree> directives = new LinkedList<>();
    for (ModuleElement.Directive directive : e.getDirectives()) {
        switch(directive.getKind()) {
            case EXPORTS:
                ModuleElement.ExportsDirective expDirective = (ModuleElement.ExportsDirective)directive;
                directives.add(make.Exports(make.QualIdent(expDirective.getPackage()), constructModuleList(expDirective.getTargetModules())));
                break;
            case OPENS:
                ModuleElement.OpensDirective opensDirective = (ModuleElement.OpensDirective)directive;
                directives.add(make.Opens(make.QualIdent(opensDirective.getPackage()), constructModuleList(opensDirective.getTargetModules())));
                break;
            case PROVIDES:
                ModuleElement.ProvidesDirective provDirective = (ModuleElement.ProvidesDirective)directive;
                directives.add(make.Provides(make.QualIdent(provDirective.getService()), constructTypeList(provDirective.getImplementations())));
                break;
            case REQUIRES:
                ModuleElement.RequiresDirective reqDirective = (ModuleElement.RequiresDirective)directive;
                directives.add(make.Requires(reqDirective.isTransitive(), reqDirective.isStatic(), make.QualIdent(reqDirective.getDependency().getQualifiedName().toString())));
                break;
            case USES:
                ModuleElement.UsesDirective usesDirective = (ModuleElement.UsesDirective)directive;
                directives.add(make.Uses(make.QualIdent(usesDirective.getService())));
                break;
        }
    }
    return addDeprecated(e, make.Module(mods, kind, make.QualIdent(e.getQualifiedName().toString()), directives));
}

@SuppressWarnings("static-method")
public void visitCompilationUnit(CompilationUnitTree node, TreeVisitor<?, ?> visitor) {
  for(Tree decl: node.getTypeDecls()) {
    if (!(decl instanceof ModuleTree)) {  // skip unnecessary nodes: imports, etc
      continue;
    }
    accept(visitor, decl);
  }
}

public void visitModule(ModuleTree node, TreeVisitor<?, ?> visitor) {
  String name = qualifiedString(node.getName());
  int flags = node.getModuleType() == ModuleKind.OPEN? ACC_OPEN: 0;

  mv = moduleClassVisitor.visitModule(name, flags, null);

  node.getDirectives().forEach(n -> accept(visitor, n));
}

@SuppressWarnings("static-method")
public void visitCompilationUnit(CompilationUnitTree node, TreeVisitor<?, ?> visitor) {
  for(Tree decl: node.getTypeDecls()) {
    if (!(decl instanceof ModuleTree)) {  // skip unnecessary nodes: imports, etc
      continue;
    }
    accept(visitor, decl);
  }
}

public void visitModule(ModuleTree node, TreeVisitor<?, ?> visitor) {
  String name = qualifiedString(node.getName());
  int flags = node.getModuleType() == ModuleKind.OPEN? ACC_OPEN: 0;

  mv = moduleClassVisitor.visitModule(name, flags, null);

  node.getDirectives().forEach(n -> accept(visitor, n));
}

@Override
   public void visitModuleDef(JCModuleDecl tree) {
toLeftMargin();
       printAnnotations(tree.mods.annotations);
       if (tree.getModuleType() == ModuleTree.ModuleKind.OPEN) {
           print("open ");
       }
       print("module ");
       print(fullName(tree.qualId));
int old = cs.indentTopLevelClassMembers() ? indent() : out.leftMargin;
int bcol = old;
       switch(cs.getModuleDeclBracePlacement()) {
       case NEW_LINE:
           newline();
           toColExactly(old);
           break;
       case NEW_LINE_HALF_INDENTED:
           newline();
    bcol += (indentSize >> 1);
           toColExactly(bcol);
           break;
       case NEW_LINE_INDENTED:
           newline();
    bcol = out.leftMargin;
           toColExactly(bcol);
           break;
       }
       if (cs.spaceBeforeModuleDeclLeftBrace())
           needSpace();
print('{');
       printInnerCommentsAsTrailing(tree, true);
if (!tree.directives.isEmpty()) {
    blankLines(cs.getBlankLinesAfterModuleHeader());
           boolean firstDirective = true;
           for (JCTree t : tree.directives) {
               printStat(t, true, firstDirective, true, true, false);
               firstDirective = false;
           }
    blankLines(cs.getBlankLinesBeforeModuleClosingBrace());
       } else {
           printEmptyBlockComments(tree, false);
       }
       toColExactly(bcol);
undent(old);
print('}');
   }

@Override
public List<? extends TypeMirror> visitModule(ModuleTree node, Object p) {
    return null;
}

@CheckForNull
public abstract ModuleTree parseModule() throws IOException;

@CheckForNull
public abstract ModuleElement resolveModule(@NonNull ModuleTree moduleTree) throws IOException;

@Override
public Mirror visitModule(ModuleTree node, EvaluationContext p) {
    Assert.error(node, "noModules");
    return super.visitModule(node, p);
}

@Override
public Boolean visitModule(ModuleTree node, EvaluationContext p) {
    return Boolean.FALSE;
}

@Override @DefinedBy(Api.COMPILER_TREE)
public Void visitModule(ModuleTree tree, Void ignore) {
    visitDecl(tree, null);
    return super.visitModule(tree, ignore);
}

/**
 * Parses ModuleElement from the module-info.java file represented by the JavaSource.
 * 
 * @param javaSource JavaSource representing module-info.java file to be parsed
 * @return {@link ModuleElement} of the given module
 * @throws IOException if the module-info.java does not exist or cannot be parsed. 
 */
@CheckForNull
public ModuleTree parseModule() throws IOException {
    return init() ? handle.parseModule() : null;
}

/**
 * Resolves a {@link ModuleTree} into the {@link ModuleElement}.
 * @param moduleTree the {@link ModuleTree} to resolve.
 * @return the resolved {@link ModuleElement} or null
 * @throws IOException in case of IO error.
 * @since 1.49
 */
@CheckForNull
public ModuleElement resolveModule(@NonNull final ModuleTree moduleTree) throws IOException {
    return init() ? handle.resolveModule(moduleTree) : null;
}