1 files changed, 75 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/util/CheckFieldAdapter.java b/tools/external/asm/org/objectweb/asm/util/CheckFieldAdapter.java
new file mode 100644
index 000000000..3e7c113b8
--- /dev/null
+++ b/tools/external/asm/org/objectweb/asm/util/CheckFieldAdapter.java
@@ -0,0 +1,75 @@
+/***
+ * ASM: a very small and fast Java bytecode manipulation framework
+ * Copyright (c) 2000-2005 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.FieldVisitor;
+
+/**
+ * A {@link FieldVisitor} that checks that its methods are properly used.
+ */
+public class CheckFieldAdapter implements FieldVisitor {
+
+    private FieldVisitor fv;
+
+    private boolean end;
+
+    public CheckFieldAdapter(final FieldVisitor fv) {
+        this.fv = fv;
+    }
+
+    public AnnotationVisitor visitAnnotation(final String desc, boolean visible)
+    {
+        checkEnd();
+        CheckMethodAdapter.checkDesc(desc, false);
+        return new CheckAnnotationAdapter(fv.visitAnnotation(desc, visible));
+    }
+
+    public void visitAttribute(final Attribute attr) {
+        checkEnd();
+        if (attr == null) {
+            throw new IllegalArgumentException("Invalid attribute (must not be null)");
+        }
+        fv.visitAttribute(attr);
+    }
+
+    public void visitEnd() {
+        checkEnd();
+        end = true;
+        fv.visitEnd();
+    }
+
+    private void checkEnd() {
+        if (end) {
+            throw new IllegalStateException("Cannot call a visit method after visitEnd has been called");
+        }
+    }
+}