--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/javac/annotations/typeAnnotations/classfile/Patterns.java Wed Nov 27 09:00:01 2019 +0100
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2009, 2019, 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 Verify type annotation on binding patterns
+ * @library /tools/lib
+ * @modules java.compiler
+ * jdk.jdeps/com.sun.tools.javap
+ * @build toolbox.JavapTask
+ * @compile --enable-preview -source ${jdk.version} Patterns.java
+ * @run main/othervm --enable-preview Patterns
+ */
+
+import java.lang.annotation.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import toolbox.JavapTask;
+import toolbox.Task;
+import toolbox.ToolBox;
+
+public class Patterns {
+
+ private ToolBox tb = new ToolBox();
+
+ public static void main(String[] args) throws Exception {
+ new Patterns().run();
+ }
+
+ public void run() throws Exception {
+ String out = new JavapTask(tb)
+ .options("-private",
+ "-verbose")
+ .classpath(System.getProperty("test.classes"))
+ .classes("Patterns$SimpleBindingPattern")
+ .run()
+ .getOutputLines(Task.OutputKind.DIRECT)
+ .stream()
+ .collect(Collectors.joining("\n"));
+
+ String constantPool = out.substring(0, out.indexOf('{'));
+
+ out = out.replaceAll("(?ms) *Code:.*?\n( *RuntimeInvisibleTypeAnnotations:)", "$1");
+ out = out.substring(out.indexOf('{'));
+ out = out.substring(0, out.lastIndexOf('}') + 1);
+
+ String A = snipCPNumber(constantPool, "LPatterns$SimpleBindingPattern$A;");
+ String CA = snipCPNumber(constantPool, "LPatterns$SimpleBindingPattern$CA;");
+ String value = snipCPNumber(constantPool, "value");
+
+ String expected = """
+ {
+ private static final java.lang.Object o;
+ descriptor: Ljava/lang/Object;
+ flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
+
+ private static final boolean B1s;
+ descriptor: Z
+ flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
+
+ private static final boolean B1m;
+ descriptor: Z
+ flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
+
+ private final boolean B2s;
+ descriptor: Z
+ flags: (0x0012) ACC_PRIVATE, ACC_FINAL
+
+ private final boolean B2m;
+ descriptor: Z
+ flags: (0x0012) ACC_PRIVATE, ACC_FINAL
+
+ public Patterns$SimpleBindingPattern();
+ descriptor: ()V
+ flags: (0x0001) ACC_PUBLIC
+ RuntimeInvisibleTypeAnnotations:
+ 0: #_A_(): LOCAL_VARIABLE, {start_pc=257, length=18, index=2}
+ Patterns$SimpleBindingPattern$A
+ 1: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=297, length=19, index=3}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+ 2: #_A_(): LOCAL_VARIABLE, {start_pc=22, length=18, index=1}
+ Patterns$SimpleBindingPattern$A
+ 3: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=62, length=18, index=1}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+ 4: #_A_(): LOCAL_VARIABLE, {start_pc=101, length=18, index=2}
+ Patterns$SimpleBindingPattern$A
+ 5: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=141, length=19, index=3}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+ 6: #_A_(): LOCAL_VARIABLE, {start_pc=179, length=18, index=2}
+ Patterns$SimpleBindingPattern$A
+ 7: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=219, length=19, index=3}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+
+ void testPatterns();
+ descriptor: ()V
+ flags: (0x0000)
+ RuntimeInvisibleTypeAnnotations:
+ 0: #_A_(): LOCAL_VARIABLE, {start_pc=17, length=18, index=2}
+ Patterns$SimpleBindingPattern$A
+ 1: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=57, length=19, index=3}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+
+ void testPatternsDesugared();
+ descriptor: ()V
+ flags: (0x0000)
+ RuntimeInvisibleTypeAnnotations:
+ 0: #_A_(): LOCAL_VARIABLE, {start_pc=17, length=15, index=1; start_pc=51, length=15, index=1}
+ Patterns$SimpleBindingPattern$A
+
+ static {};
+ descriptor: ()V
+ flags: (0x0008) ACC_STATIC
+ RuntimeInvisibleTypeAnnotations:
+ 0: #_A_(): LOCAL_VARIABLE, {start_pc=22, length=18, index=0}
+ Patterns$SimpleBindingPattern$A
+ 1: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=61, length=18, index=0}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+ 2: #_A_(): LOCAL_VARIABLE, {start_pc=100, length=18, index=1}
+ Patterns$SimpleBindingPattern$A
+ 3: #_CA_(#_value_=[@#_A_(),@#_A_()]): LOCAL_VARIABLE, {start_pc=137, length=18, index=2}
+ Patterns$SimpleBindingPattern$CA(
+ value=[@Patterns$SimpleBindingPattern$A,@Patterns$SimpleBindingPattern$A]
+ )
+ }""".replace("_A_", A).replace("_CA_", CA).replace("_value_", value);
+
+ if (!expected.equals(out)) {
+ throw new AssertionError("Unexpected output:\n" + out + "\nexpected:\n" + expected);
+ }
+ }
+
+ private String snipCPNumber(String constantPool, String expectedConstant) {
+ Matcher m = Pattern.compile("#([0-9]+).*" + Pattern.quote(expectedConstant))
+ .matcher(constantPool);
+ if (!m.find()) {
+ throw new AssertionError("Cannot find constant pool item");
+ }
+
+ return m.group(1);
+ }
+
+ /*********************** Test class *************************/
+ static class SimpleBindingPattern {
+ @Target(ElementType.TYPE_USE)
+ @Repeatable(CA.class)
+ @interface A {}
+ @Target(ElementType.TYPE_USE)
+ @interface CA {
+ public A[] value();
+ }
+
+ private static final Object o = "";
+ private static final boolean B1s = o instanceof @A String s && s.isEmpty();
+ private static final boolean B1m = o instanceof @A @A String s && s.isEmpty();
+ private final boolean B2s = o instanceof @A String s && s.isEmpty();
+ private final boolean B2m = o instanceof @A @A String s && s.isEmpty();
+
+ static {
+ boolean B3s = o instanceof @A String s && s.isEmpty();
+ boolean B3m = o instanceof @A @A String s && s.isEmpty();
+ }
+
+ {
+ boolean B4s = o instanceof @A String s && s.isEmpty();
+ boolean B4m = o instanceof @A @A String s && s.isEmpty();
+ }
+
+ {
+ boolean B5s = o instanceof @A String s && s.isEmpty();
+ boolean B5m = o instanceof @A @A String s && s.isEmpty();
+ }
+
+ public SimpleBindingPattern() {
+ boolean B6s = o instanceof @A String s && s.isEmpty();
+ boolean B6m = o instanceof @A @A String s && s.isEmpty();
+ }
+
+ void testPatterns() {
+ boolean B7s = o instanceof @A String s && s.isEmpty();
+ boolean B7m = o instanceof @A @A String s && s.isEmpty();
+ }
+
+ void testPatternsDesugared() {
+ @A String s;
+ boolean B8s = o instanceof String && (s = (String) o) == s && s.isEmpty();
+ boolean B8sx = o instanceof String && (s = (String) o) == s && s.isEmpty();
+ }
+ }
+}