1 /*

     2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 package jdk.nashorn.api.tree;

    26 

    27 import java.util.List;

    28 import java.util.stream.Collectors;

    29 import jdk.nashorn.internal.ir.FunctionNode;

    30 import jdk.nashorn.internal.ir.IdentNode;

    31 import jdk.nashorn.internal.ir.Module;

    32 import static jdk.nashorn.api.tree.ExportEntryTreeImpl.createExportList;

    33 import static jdk.nashorn.api.tree.ImportEntryTreeImpl.createImportList;

    34 

    35 final class ModuleTreeImpl extends TreeImpl implements ModuleTree {

    36 

    37     private final Module mod;

    38     private final List<? extends ImportEntryTree> imports;

    39     private final List<? extends ExportEntryTree> localExports;

    40     private final List<? extends ExportEntryTree> indirectExports;

    41     private final List<? extends ExportEntryTree> starExports;

    42 

    43     private ModuleTreeImpl(final FunctionNode func,

    44             final List<? extends ImportEntryTree> imports,

    45             final List<? extends ExportEntryTree> localExports,

    46             final List<? extends ExportEntryTree> indirectExports,

    47             final List<? extends ExportEntryTree> starExports) {

    48         super(func);

    49         assert func.getKind() == FunctionNode.Kind.MODULE : "module function node expected";

    50         this.mod = func.getModule();

    51         this.imports = imports;

    52         this.localExports = localExports;

    53         this.indirectExports = indirectExports;

    54         this.starExports = starExports;

    55     }

    56 

    57     static ModuleTreeImpl create(final FunctionNode func) {

    58         final Module mod = func.getModule();

    59         return new ModuleTreeImpl(func,

    60             createImportList(mod.getImportEntries()),

    61             createExportList(mod.getLocalExportEntries()),

    62             createExportList(mod.getIndirectExportEntries()),

    63             createExportList(mod.getStarExportEntries()));

    64     }

    65 

    66     @Override

    67     public Kind getKind() {

    68         return Tree.Kind.MODULE;

    69     }

    70 

    71     @Override

    72     public List<? extends ImportEntryTree> getImportEntries() {

    73         return imports;

    74     }

    75 

    76     @Override

    77     public List<? extends ExportEntryTree> getLocalExportEntries() {

    78         return localExports;

    79     }

    80 

    81     @Override

    82     public List<? extends ExportEntryTree> getIndirectExportEntries() {

    83         return indirectExports;

    84     }

    85 

    86     @Override

    87     public List<? extends ExportEntryTree> getStarExportEntries() {

    88         return starExports;

    89     }

    90 

    91     @Override

    92     public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {

    93         return visitor.visitModule(this, data);

    94     }

    95 

    96     static IdentifierTree identOrNull(final IdentNode node) {

    97         return node != null? new IdentifierTreeImpl(node) : null;

    98     }

    99 }