Additional annotations: @CallSuper, @Keep, etc.

These mirror the new support library annotations, but
with source retention.

Change-Id: Ib85ceeb37d596aae8cf12d4f8fede3982552d033

1 files changed, 55 insertions, 0 deletions

diff --git a/core/java/android/annotation/FloatRange.java b/core/java/android/annotation/FloatRange.java
new file mode 100644
index 000000000000..3a7c15015b49
--- /dev/null
+++ b/core/java/android/annotation/FloatRange.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015 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 android.annotation;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.LOCAL_VARIABLE;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.ElementType.PARAMETER;
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+/**
+ * Denotes that the annotated element should be a float or double in the given range
+ * <p>
+ * Example:
+ * <pre>{@code
+ *  &#64;FloatRange(from=0.0,to=1.0)
+ *  public float getAlpha() {
+ *      ...
+ *  }
+ * }</pre>
+ *
+ * @hide
+ */
+@Retention(SOURCE)
+@Target({METHOD,PARAMETER,FIELD,LOCAL_VARIABLE})
+public @interface FloatRange {
+    /** Smallest value. Whether it is inclusive or not is determined
+     * by {@link #fromInclusive} */
+    double from() default Double.NEGATIVE_INFINITY;
+    /** Largest value. Whether it is inclusive or not is determined
+     * by {@link #toInclusive} */
+    double to() default Double.POSITIVE_INFINITY;
+
+    /** Whether the from value is included in the range */
+    boolean fromInclusive() default true;
+
+    /** Whether the to value is included in the range */
+    boolean toInclusive() default true;
+}
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