1 files changed, 69 insertions, 0 deletions
diff --git a/dx/src/com/android/dx/rop/type/TypeList.java b/dx/src/com/android/dx/rop/type/TypeList.java
new file mode 100644
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+++ b/dx/src/com/android/dx/rop/type/TypeList.java
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+/*
+ * Copyright (C) 2007 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.rop.type;
+
+/**
+ * List of {@link Type} instances (or of things that contain types).
+ */
+public interface TypeList {
+    /**
+     * Returns whether this instance is mutable. Note that the
+     * {@code TypeList} interface itself doesn't provide any
+     * means of mutation, but that doesn't mean that there isn't an
+     * extra-interface way of mutating an instance.
+     *
+     * @return {@code true} if this instance is mutable or
+     * {@code false} if it is immutable
+     */
+    public boolean isMutable();
+
+    /**
+     * Gets the size of this list.
+     *
+     * @return {@code >= 0;} the size
+     */
+    public int size();
+
+    /**
+     * Gets the indicated element. It is an error to call this with the
+     * index for an element which was never set; if you do that, this
+     * will throw {@code NullPointerException}.
+     *
+     * @param n {@code >= 0, < size();} which element
+     * @return {@code non-null;} the indicated element
+     */
+    public Type getType(int n);
+
+    /**
+     * Gets the number of 32-bit words required to hold instances of
+     * all the elements of this list. This is a sum of the widths (categories)
+     * of all the elements.
+     *
+     * @return {@code >= 0;} the required number of words
+     */
+    public int getWordCount();
+
+    /**
+     * Returns a new instance which is identical to this one, except that
+     * the given item is appended to the end and it is guaranteed to be
+     * immutable.
+     *
+     * @param type {@code non-null;} item to append
+     * @return {@code non-null;} an appropriately-constructed instance
+     */
+    public TypeList withAddedType(Type type);
+}