001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.types;
018    
019    import org.jetbrains.annotations.NotNull;
020    
021    public class CompositeTypeSubstitution extends TypeSubstitution {
022        private final TypeSubstitution[] inner;
023    
024        public CompositeTypeSubstitution(@NotNull TypeSubstitution... inner) {
025            this.inner = inner;
026        }
027    
028        @Override
029        public TypeProjection get(TypeConstructor key) {
030            for (TypeSubstitution substitution : inner) {
031                TypeProjection value = substitution.get(key);
032                if (value != null) return value;
033            }
034            return null;
035        }
036    
037        @Override
038        public boolean isEmpty() {
039            for (TypeSubstitution substitution : inner) {
040                if (!substitution.isEmpty()) return false;
041            }
042            return true;
043        }
044    
045        @Override
046        public boolean approximateCapturedTypes() {
047            for (TypeSubstitution substitution : inner) {
048                if (substitution.approximateCapturedTypes()) return true;
049            }
050            return false;
051        }
052    
053        @Override
054        public String toString() {
055            StringBuilder builder = new StringBuilder();
056            for (TypeSubstitution substitution : inner) {
057                builder.append(substitution).append(" * ");
058            }
059            return builder.toString();
060        }
061    }