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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 
ModuleTreeImpl(final FunctionNode func, final List<? extends ImportEntryTree> imports, final List<? extends ExportEntryTree> localExports, final List<? extends ExportEntryTree> indirectExports, final List<? extends ExportEntryTree> starExports)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 
create(final FunctionNode func)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
getKind()67     public Kind getKind() {
68         return Tree.Kind.MODULE;
69     }
70 
71     @Override
getImportEntries()72     public List<? extends ImportEntryTree> getImportEntries() {
73         return imports;
74     }
75 
76     @Override
getLocalExportEntries()77     public List<? extends ExportEntryTree> getLocalExportEntries() {
78         return localExports;
79     }
80 
81     @Override
getIndirectExportEntries()82     public List<? extends ExportEntryTree> getIndirectExportEntries() {
83         return indirectExports;
84     }
85 
86     @Override
getStarExportEntries()87     public List<? extends ExportEntryTree> getStarExportEntries() {
88         return starExports;
89     }
90 
91     @Override
accept(final TreeVisitor<R,D> visitor, final D data)92     public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {
93         return visitor.visitModule(this, data);
94     }
95 
identOrNull(final IdentNode node)96     static IdentifierTree identOrNull(final IdentNode node) {
97         return node != null? new IdentifierTreeImpl(node) : null;
98     }
99 }
100