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+// 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.objectweb.asm.util;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.Attribute;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.RecordComponentVisitor;
+import org.objectweb.asm.TypePath;
+import org.objectweb.asm.TypeReference;
+
+/**
+ * A {@link RecordComponentVisitor} that checks that its methods are properly used.
+ *
+ * @author Eric Bruneton
+ * @author Remi Forax
+ */
+public class CheckRecordComponentAdapter extends RecordComponentVisitor {
+
+ /** Whether the {@link #visitEnd()} method has been called. */
+ private boolean visitEndCalled;
+
+ /**
+ * Constructs a new {@link CheckRecordComponentAdapter}. <i>Subclasses must not use this
+ * constructor</i>. Instead, they must use the {@link #CheckRecordComponentAdapter(int,
+ * RecordComponentVisitor)} version.
+ *
+ * @param recordComponentVisitor the record component visitor to which this adapter must delegate
+ * calls.
+ * @throws IllegalStateException If a subclass calls this constructor.
+ */
+ public CheckRecordComponentAdapter(final RecordComponentVisitor recordComponentVisitor) {
+ this(/* latest api =*/ Opcodes.ASM9, recordComponentVisitor);
+ if (getClass() != CheckRecordComponentAdapter.class) {
+ throw new IllegalStateException();
+ }
+ }
+
+ /**
+ * Constructs a new {@link CheckRecordComponentAdapter}.
+ *
+ * @param api the ASM API version implemented by this visitor. Must be one of {@link Opcodes#ASM8}
+ * or {@link Opcodes#ASM9}.
+ * @param recordComponentVisitor the record component visitor to which this adapter must delegate
+ * calls.
+ */
+ protected CheckRecordComponentAdapter(
+ final int api, final RecordComponentVisitor recordComponentVisitor) {
+ super(api, recordComponentVisitor);
+ }
+
+ @Override
+ public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) {
+ checkVisitEndNotCalled();
+ // Annotations can only appear in V1_5 or more classes.
+ CheckMethodAdapter.checkDescriptor(Opcodes.V1_5, descriptor, false);
+ return new CheckAnnotationAdapter(super.visitAnnotation(descriptor, visible));
+ }
+
+ @Override
+ public AnnotationVisitor visitTypeAnnotation(
+ final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) {
+ checkVisitEndNotCalled();
+ int sort = new TypeReference(typeRef).getSort();
+ if (sort != TypeReference.FIELD) {
+ throw new IllegalArgumentException(
+ "Invalid type reference sort 0x" + Integer.toHexString(sort));
+ }
+ CheckClassAdapter.checkTypeRef(typeRef);
+ CheckMethodAdapter.checkDescriptor(Opcodes.V1_5, descriptor, false);
+ return new CheckAnnotationAdapter(
+ super.visitTypeAnnotation(typeRef, typePath, descriptor, visible));
+ }
+
+ @Override
+ public void visitAttribute(final Attribute attribute) {
+ checkVisitEndNotCalled();
+ if (attribute == null) {
+ throw new IllegalArgumentException("Invalid attribute (must not be null)");
+ }
+ super.visitAttribute(attribute);
+ }
+
+ @Override
+ public void visitEnd() {
+ checkVisitEndNotCalled();
+ visitEndCalled = true;
+ super.visitEnd();
+ }
+
+ private void checkVisitEndNotCalled() {
+ if (visitEndCalled) {
+ throw new IllegalStateException("Cannot call a visit method after visitEnd has been called");
+ }
+ }
+}