langtools/test/tools/javac/classfiles/attributes/LocalVariableTable/LocalVariableTypeTableTest.java
changeset 24223 90b07e33a49d
child 25298 7940437438b9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/classfiles/attributes/LocalVariableTable/LocalVariableTypeTableTest.java	Wed Apr 30 13:48:37 2014 -0700
@@ -0,0 +1,207 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ * 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.
+ */
+
+/*
+ * @test
+ * @summary local variable type table attribute test.
+ * @bug 8040097
+ * @library /tools/javac/lib ../lib
+ * @build LocalVariableTestBase TestBase InMemoryFileManager ToolBox
+ * @compile -g LocalVariableTypeTableTest.java
+ * @run main LocalVariableTypeTableTest
+ */
+
+import com.sun.tools.classfile.Code_attribute;
+import com.sun.tools.classfile.LocalVariableTypeTable_attribute;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.List;
+import java.util.function.Supplier;
+import java.util.stream.Stream;
+
+import static java.util.stream.Collectors.toList;
+
+public class LocalVariableTypeTableTest<THIS> extends LocalVariableTestBase {
+
+    public LocalVariableTypeTableTest(Class<?> clazz) {
+        super(clazz);
+    }
+
+    public static void main(String[] args) throws IOException {
+        new LocalVariableTypeTableTest(LocalVariableTypeTableTest.class).test();
+    }
+
+    @Override
+    protected List<VariableTable> getVariableTables(Code_attribute codeAttribute) {
+        return Stream.of(codeAttribute.attributes.attrs)
+                .filter(at -> at instanceof LocalVariableTypeTable_attribute)
+                .map(at -> (LocalVariableTypeTable_attribute) at)
+                .map(LocalVariableTypeTable::new).collect(toList());
+    }
+
+    @ExpectedLocals(name = "list", type = "TT;")
+    @ExpectedLocals(name = "p", type = "[TP;")
+    @ExpectedLocals(name = "k", type = "TK;")
+    @ExpectedLocals(name = "c1", type = "Ljava/util/Collection<-Ljava/lang/Integer;>;")
+    @ExpectedLocals(name = "c2", type = "Ljava/util/Collection<*>;")
+    @ExpectedLocals(name = "c3", type = "Ljava/util/Collection<+TE;>;")
+    public <T extends List<Integer>, P, K extends Integer, E extends Supplier & Runnable>
+    void genericTypeWithParametersOnly(K k, T list, P[] p,
+                                       Collection<? super Integer> c1,
+                                       Collection<?> c2, Collection<? extends E> c3) {
+    }
+
+    @ExpectedLocals(name = "list", type = "TT;")
+    @ExpectedLocals(name = "p", type = "[TP;")
+    @ExpectedLocals(name = "k", type = "TK;")
+    @ExpectedLocals(name = "c1", type = "Ljava/util/Collection<-Ljava/lang/Integer;>;")
+    @ExpectedLocals(name = "c2", type = "Ljava/util/Collection<*>;")
+    @ExpectedLocals(name = "c3", type = "Ljava/util/Collection<+TE;>;")
+    public <T extends List<Integer>, P, K extends Integer, E extends Supplier & Runnable>
+    void genericType(K k, T list, P[] p) {
+        Collection<? super Integer> c1 = null;
+        Collection<?> c2 = null;
+        Collection<? extends E> c3 = null;
+    }
+
+    @ExpectedLocals(name = "list", type = "TT;")
+    @ExpectedLocals(name = "p", type = "[[TP;")
+    public <T extends List<Integer>, P, K extends Integer> void genericTypeWithoutParameters() {
+        T list = null;
+        list.add(1);
+        int i = 0;
+        P[][] p = null;
+    }
+
+    @ExpectedLocals(name = "this", type = "LLocalVariableTypeTableTest<TTHIS;>;")
+    public void genericThis() {
+    }
+
+    @ExpectedLocals(name = "this", type = "LLocalVariableTypeTableTest<TTHIS;>;")
+    @ExpectedLocals(name = "inWhile", type = "TTHIS;")
+    @ExpectedLocals(name = "inTry", type = "TTHIS;")
+    @ExpectedLocals(name = "inSync", type = "TTHIS;")
+    @ExpectedLocals(name = "inDo", type = "TTHIS;")
+    @ExpectedLocals(name = "inSwitch", type = "TTHIS;")
+    @ExpectedLocals(name = "inFor", type = "LLocalVariableTypeTableTest<-TTHIS;>;")
+    @ExpectedLocals(name = "s", type = "Ljava/util/stream/Stream<+Ljava/lang/Integer;>;")
+    public void deepScope() {
+        {
+            while (true) {
+                THIS inWhile = null;
+                for (LocalVariableTypeTableTest<? super THIS> inFor : Arrays.asList(this)) {
+                    try (Stream<? extends Integer> s = Stream.of(0)) {
+                        THIS inTry = null;
+                        synchronized (this) {
+                            THIS inSync = null;
+                            do {
+                                THIS inDo = null;
+                                switch (1) {
+                                    default:
+                                        THIS inSwitch = null;
+                                }
+                            } while (true);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    @ExpectedLocals(name = "i", type = "TTHIS;", scope = 0)
+    @ExpectedLocals(name = "i", type = "Ljava/util/List<TTHIS;>;", scope = 1)
+    public void reuseByLong() {
+        {
+            THIS i = null;
+        }
+        {
+            List<THIS> i = null;
+        }
+    }
+
+    class LocalVariableTypeTable implements VariableTable {
+
+        final LocalVariableTypeTable_attribute att;
+
+
+        public LocalVariableTypeTable(LocalVariableTypeTable_attribute att) {
+            this.att = att;
+        }
+
+        @Override
+        public int localVariableTableLength() {
+            return att.local_variable_table_length;
+        }
+
+        @Override
+        public List<Entry> entries() {
+            return Stream.of(att.local_variable_table).map(LocalVariableTypeTableEntry::new).collect(toList());
+        }
+
+        @Override
+        public int attributeLength() {
+            return att.attribute_length;
+        }
+
+        private class LocalVariableTypeTableEntry implements Entry {
+
+            final LocalVariableTypeTable_attribute.Entry entry;
+
+            private LocalVariableTypeTableEntry(LocalVariableTypeTable_attribute.Entry entry) {
+                this.entry = entry;
+            }
+
+            @Override
+            public int index() {
+                return entry.index;
+            }
+
+            @Override
+            public int startPC() {
+                return entry.start_pc;
+            }
+
+            @Override
+            public int length() {
+                return entry.length;
+            }
+
+            @Override
+            public String name() {
+                return getString(entry.name_index);
+            }
+
+            @Override
+            public String type() {
+                return getString(entry.signature_index);
+            }
+
+            @Override
+            public String toString() {
+                return dump();
+            }
+        }
+    }
+}