1 files changed, 157 insertions, 0 deletions
diff --git a/dx/src/com/android/dx/dex/file/AnnotationSetItem.java b/dx/src/com/android/dx/dex/file/AnnotationSetItem.java
new file mode 100644
index 0000000..2187700
--- /dev/null
+++ b/dx/src/com/android/dx/dex/file/AnnotationSetItem.java
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dx.dex.file;
+
+import com.android.dx.rop.annotation.Annotations;
+import com.android.dx.rop.annotation.Annotation;
+import com.android.dx.util.AnnotatedOutput;
+import com.android.dx.util.Hex;
+
+/**
+ * Set of annotations, where no annotation type appears more than once.
+ */
+public final class AnnotationSetItem extends OffsettedItem {
+    /** the required alignment for instances of this class */
+    private static final int ALIGNMENT = 4;
+
+    /** the size of an entry int the set: one {@code uint} */
+    private static final int ENTRY_WRITE_SIZE = 4;
+
+    /** {@code non-null;} the set of annotations */
+    private final Annotations annotations;
+
+    /**
+     * {@code non-null;} set of annotations as individual items in an array.
+     * <b>Note:</b> The contents have to get sorted by type id before
+     * writing.
+     */
+    private final AnnotationItem[] items;
+
+    /**
+     * Constructs an instance.
+     *
+     * @param annotations {@code non-null;} set of annotations
+     */
+    public AnnotationSetItem(Annotations annotations) {
+        super(ALIGNMENT, writeSize(annotations));
+
+        this.annotations = annotations;
+        this.items = new AnnotationItem[annotations.size()];
+
+        int at = 0;
+        for (Annotation a : annotations.getAnnotations()) {
+            items[at] = new AnnotationItem(a);
+            at++;
+        }
+    }
+
+    /**
+     * Gets the write size for the given set.
+     *
+     * @param annotations {@code non-null;} the set
+     * @return {@code > 0;} the write size
+     */
+    private static int writeSize(Annotations annotations) {
+        // This includes an int size at the start of the list.
+
+        try {
+            return (annotations.size() * ENTRY_WRITE_SIZE) + 4;
+        } catch (NullPointerException ex) {
+            // Elucidate the exception.
+            throw new NullPointerException("list == null");
+        }
+    }
+
+    /**
+     * Gets the underlying annotations of this instance
+     *
+     * @return {@code non-null;} the annotations
+     */
+    public Annotations getAnnotations() {
+        return annotations;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public int hashCode() {
+        return annotations.hashCode();
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    protected int compareTo0(OffsettedItem other) {
+        AnnotationSetItem otherSet = (AnnotationSetItem) other;
+
+        return annotations.compareTo(otherSet.annotations);
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public ItemType itemType() {
+        return ItemType.TYPE_ANNOTATION_SET_ITEM;
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    public String toHuman() {
+        return annotations.toString();
+    }
+
+    /** {@inheritDoc} */
+    public void addContents(DexFile file) {
+        MixedItemSection byteData = file.getByteData();
+        int size = items.length;
+
+        for (int i = 0; i < size; i++) {
+            items[i] = byteData.intern(items[i]);
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    protected void place0(Section addedTo, int offset) {
+        // Sort the array to be in type id index order.
+        AnnotationItem.sortByTypeIdIndex(items);
+    }
+
+    /** {@inheritDoc} */
+    @Override
+    protected void writeTo0(DexFile file, AnnotatedOutput out) {
+        boolean annotates = out.annotates();
+        int size = items.length;
+
+        if (annotates) {
+            out.annotate(0, offsetString() + " annotation set");
+            out.annotate(4, "  size: " + Hex.u4(size));
+        }
+
+        out.writeInt(size);
+
+        for (int i = 0; i < size; i++) {
+            AnnotationItem item = items[i];
+            int offset = item.getAbsoluteOffset();
+
+            if (annotates) {
+                out.annotate(4, "  entries[" + Integer.toHexString(i) + "]: " +
+                        Hex.u4(offset));
+                items[i].annotateTo(out, "    ");
+            }
+
+            out.writeInt(offset);
+        }
+    }
+}