Merge "Add @AnyThread, @Dimension and @Px"

/*

 * Copyright (C) 2016 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.CONSTRUCTOR;

import static java.lang.annotation.ElementType.METHOD;

import static java.lang.annotation.ElementType.TYPE;

import static java.lang.annotation.RetentionPolicy.SOURCE;

/**

 * Denotes that the annotated method can be called from any thread (e.g. it is "thread safe".)

 * If the annotated element is a class, then all methods in the class can be called

 * from any thread.

 * <p>

 * The main purpose of this method is to indicate that you believe a method can be called

 * from any thread; static tools can then check that nothing you call from within this method

 * or class have more strict threading requirements.

 * <p>

 * Example:

 * <pre><code>

 *  @AnyThread

 *  public void deliverResult(D data) { ... }

 * </code></pre>

 *

 * {@hide}

 */

@Retention(SOURCE)

@Target({METHOD,CONSTRUCTOR,TYPE})

public @interface AnyThread {

}

/*

 * Copyright (C) 2016 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.Documented;

import java.lang.annotation.Retention;

import java.lang.annotation.Target;

import static java.lang.annotation.ElementType.ANNOTATION_TYPE;

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 a numeric parameter, field or method return value is expected

 * to represent a dimension.

 *

 * {@hide}

 */

@Documented

@Retention(SOURCE)

@Target({METHOD,PARAMETER,FIELD,LOCAL_VARIABLE,ANNOTATION_TYPE})

public @interface Dimension {

    @Unit

    int unit() default PX;

    int DP = 0;

    int PX = 1;

    int SP = 2;

    @IntDef({PX, DP, SP})

    @Retention(SOURCE)

    @interface Unit {}

}

/*

 * Copyright (C) 2016 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.Documented;

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 a numeric parameter, field or method return value is expected

 * to represent a pixel dimension.

 *

 * {@hide}

 */

@Documented

@Retention(SOURCE)

@Target({METHOD, PARAMETER, FIELD, LOCAL_VARIABLE})

@Dimension(unit = Dimension.PX)

public @interface Px {

}