com.facebook.presto.jdbc.internal.j2objc.annotations.LoopTranslation Maven / Gradle / Ivy
/*
* 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.facebook.presto.jdbc.internal.j2objc.annotations;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Annotation that specifies how an enhanced for loop should be translated by
* the J2ObjC translator.
*
* @author Keith Stanger
*/
@Target(ElementType.LOCAL_VARIABLE)
@Retention(RetentionPolicy.SOURCE)
public @interface LoopTranslation {
/**
* Enumerates the available translation options for enhanced for loops.
* FAST_ENUMERATION is the default style emitted by the translator.
*/
enum LoopStyle {
/*
* id iter__ = [expr iterator];
* while ([iter__ hasNext]) {
* id var = [iter__ next];
* ...
* }
*/
JAVA_ITERATOR,
/*
* for (id var in expr) {
* ...
* }
*/
FAST_ENUMERATION
}
LoopStyle value();
}
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