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Posted to commits@tapestry.apache.org by th...@apache.org on 2018/11/29 00:33:59 UTC

[12/46] tapestry-5 git commit: TAP5-2588: upgrading from ASM 6 to 7 for Java 9+ support

http://git-wip-us.apache.org/repos/asf/tapestry-5/blob/1c71aec7/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/util/CheckAnnotationAdapter.java
----------------------------------------------------------------------
diff --git a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/util/CheckAnnotationAdapter.java b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/util/CheckAnnotationAdapter.java
old mode 100644
new mode 100755
index 029c464..e3bcae4
--- a/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/util/CheckAnnotationAdapter.java
+++ b/plastic/src/external/java/org/apache/tapestry5/internal/plastic/asm/util/CheckAnnotationAdapter.java
@@ -1,32 +1,30 @@
-/***
- * ASM: a very small and fast Java bytecode manipulation framework
- * Copyright (c) 2000-2011 INRIA, France Telecom
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the copyright holders nor the names of its
- *    contributors may be used to endorse or promote products derived from
- *    this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
+// ASM: a very small and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 INRIA, France Telecom
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the copyright holders nor the names of its
+//    contributors may be used to endorse or promote products derived from
+//    this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
 package org.apache.tapestry5.internal.plastic.asm.util;
 
 import org.apache.tapestry5.internal.plastic.asm.AnnotationVisitor;
@@ -35,102 +33,103 @@ import org.apache.tapestry5.internal.plastic.asm.Type;
 
 /**
  * An {@link AnnotationVisitor} that checks that its methods are properly used.
- * 
+ *
  * @author Eric Bruneton
  */
 public class CheckAnnotationAdapter extends AnnotationVisitor {
 
-    private final boolean named;
+  /**
+   * Whether the values of the visited annotation are named. AnnotationVisitor instances used for
+   * annotation default and annotation arrays use unnamed values.
+   */
+  private final boolean useNamedValue;
 
-    private boolean end;
+  /** Whether the {@link #visitEnd} method has been called. */
+  private boolean visitEndCalled;
 
-    public CheckAnnotationAdapter(final AnnotationVisitor av) {
-        this(av, true);
-    }
+  public CheckAnnotationAdapter(final AnnotationVisitor annotationVisitor) {
+    this(annotationVisitor, true);
+  }
 
-    CheckAnnotationAdapter(final AnnotationVisitor av, final boolean named) {
-        super(Opcodes.ASM6, av);
-        this.named = named;
-    }
+  CheckAnnotationAdapter(final AnnotationVisitor annotationVisitor, final boolean useNamedValues) {
+    super(Opcodes.ASM7, annotationVisitor);
+    this.useNamedValue = useNamedValues;
+  }
 
-    @Override
-    public void visit(final String name, final Object value) {
-        checkEnd();
-        checkName(name);
-        if (!(value instanceof Byte || value instanceof Boolean
-                || value instanceof Character || value instanceof Short
-                || value instanceof Integer || value instanceof Long
-                || value instanceof Float || value instanceof Double
-                || value instanceof String || value instanceof Type
-                || value instanceof byte[] || value instanceof boolean[]
-                || value instanceof char[] || value instanceof short[]
-                || value instanceof int[] || value instanceof long[]
-                || value instanceof float[] || value instanceof double[])) {
-            throw new IllegalArgumentException("Invalid annotation value");
-        }
-        if (value instanceof Type) {
-            int sort = ((Type) value).getSort();
-            if (sort == Type.METHOD) {
-                throw new IllegalArgumentException("Invalid annotation value");
-            }
-        }
-        if (av != null) {
-            av.visit(name, value);
-        }
+  @Override
+  public void visit(final String name, final Object value) {
+    checkVisitEndNotCalled();
+    checkName(name);
+    if (!(value instanceof Byte
+        || value instanceof Boolean
+        || value instanceof Character
+        || value instanceof Short
+        || value instanceof Integer
+        || value instanceof Long
+        || value instanceof Float
+        || value instanceof Double
+        || value instanceof String
+        || value instanceof Type
+        || value instanceof byte[]
+        || value instanceof boolean[]
+        || value instanceof char[]
+        || value instanceof short[]
+        || value instanceof int[]
+        || value instanceof long[]
+        || value instanceof float[]
+        || value instanceof double[])) {
+      throw new IllegalArgumentException("Invalid annotation value");
     }
-
-    @Override
-    public void visitEnum(final String name, final String desc,
-            final String value) {
-        checkEnd();
-        checkName(name);
-        CheckMethodAdapter.checkDesc(desc, false);
-        if (value == null) {
-            throw new IllegalArgumentException("Invalid enum value");
-        }
-        if (av != null) {
-            av.visitEnum(name, desc, value);
-        }
+    if (value instanceof Type && ((Type) value).getSort() == Type.METHOD) {
+      throw new IllegalArgumentException("Invalid annotation value");
     }
+    super.visit(name, value);
+  }
 
-    @Override
-    public AnnotationVisitor visitAnnotation(final String name,
-            final String desc) {
-        checkEnd();
-        checkName(name);
-        CheckMethodAdapter.checkDesc(desc, false);
-        return new CheckAnnotationAdapter(av == null ? null
-                : av.visitAnnotation(name, desc));
+  @Override
+  public void visitEnum(final String name, final String descriptor, final String value) {
+    checkVisitEndNotCalled();
+    checkName(name);
+    // Annotations can only appear in V1_5 or more classes.
+    CheckMethodAdapter.checkDescriptor(Opcodes.V1_5, descriptor, false);
+    if (value == null) {
+      throw new IllegalArgumentException("Invalid enum value");
     }
+    super.visitEnum(name, descriptor, value);
+  }
 
-    @Override
-    public AnnotationVisitor visitArray(final String name) {
-        checkEnd();
-        checkName(name);
-        return new CheckAnnotationAdapter(av == null ? null
-                : av.visitArray(name), false);
-    }
+  @Override
+  public AnnotationVisitor visitAnnotation(final String name, final String descriptor) {
+    checkVisitEndNotCalled();
+    checkName(name);
+    // Annotations can only appear in V1_5 or more classes.
+    CheckMethodAdapter.checkDescriptor(Opcodes.V1_5, descriptor, false);
+    return new CheckAnnotationAdapter(super.visitAnnotation(name, descriptor));
+  }
 
-    @Override
-    public void visitEnd() {
-        checkEnd();
-        end = true;
-        if (av != null) {
-            av.visitEnd();
-        }
-    }
+  @Override
+  public AnnotationVisitor visitArray(final String name) {
+    checkVisitEndNotCalled();
+    checkName(name);
+    return new CheckAnnotationAdapter(super.visitArray(name), false);
+  }
+
+  @Override
+  public void visitEnd() {
+    checkVisitEndNotCalled();
+    visitEndCalled = true;
+    super.visitEnd();
+  }
 
-    private void checkEnd() {
-        if (end) {
-            throw new IllegalStateException(
-                    "Cannot call a visit method after visitEnd has been called");
-        }
+  private void checkName(final String name) {
+    if (useNamedValue && name == null) {
+      throw new IllegalArgumentException("Annotation value name must not be null");
     }
+  }
 
-    private void checkName(final String name) {
-        if (named && name == null) {
-            throw new IllegalArgumentException(
-                    "Annotation value name must not be null");
-        }
+  private void checkVisitEndNotCalled() {
+    if (visitEndCalled) {
+      throw new IllegalStateException("Cannot call a visit method after visitEnd has been called");
     }
+  }
 }