/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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
 *
 *    https://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 org.grails.compiler.injection

import groovy.transform.CompileStatic

import grails.compiler.traits.TraitInjector

/**
 * Utility methods used by {@link TraitInjectionUtils}
 *
 * @author Graeme Rocher
 * @since 3.0.3
 */
@CompileStatic
class TraitInjectionSupport {

    static List<TraitInjector> resolveTraitInjectors(List<TraitInjector> injectors) {
        injectors = new ArrayList<>(injectors)
        injectors.sort { TraitInjector o1, TraitInjector o2 ->
            final Class t1 = o1.trait
            final Class t2 = o2.trait
            if (t1 == t2) return 0

            // lower priority of core traits so that plugins can override
            if (o1.getClass().name.startsWith('grails.compiler.traits')) {
                return -1
            }
            else {
                return 1
            }
        }
        return injectors
    }
}
