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.js.translate.utils;
018    
019    import com.google.common.collect.Lists;
020    import org.jetbrains.kotlin.js.backend.ast.JsExpression;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.kotlin.js.translate.context.TemporaryVariable;
023    import org.jetbrains.kotlin.js.translate.context.TranslationContext;
024    
025    import java.util.List;
026    
027    import static org.jetbrains.kotlin.js.translate.utils.JsAstUtils.newSequence;
028    
029    //TODO: look for what should go there
030    public final class TemporariesUtils {
031        private TemporariesUtils() {
032        }
033    
034        @NotNull
035        public static List<TemporaryVariable> fromExpressionList(@NotNull List<JsExpression> expressions,
036                                                                 @NotNull TranslationContext context) {
037            List<TemporaryVariable> result = Lists.newArrayList();
038            for (JsExpression expression : expressions) {
039                result.add(context.declareTemporary(expression));
040            }
041            return result;
042        }
043    
044        @NotNull
045        public static List<JsExpression> toExpressionList(@NotNull List<TemporaryVariable> temporaries) {
046            List<JsExpression> result = Lists.newArrayList();
047            for (TemporaryVariable temp : temporaries) {
048                result.add(temp.reference());
049            }
050            return result;
051        }
052    
053        @NotNull
054        public static JsExpression temporariesInitialization(@NotNull TemporaryVariable... temporaries) {
055            List<JsExpression> result = Lists.newArrayList();
056            for (TemporaryVariable temporary : temporaries) {
057                result.add(temporary.assignmentExpression());
058            }
059            return newSequence(result);
060        }
061    
062        @NotNull
063        public static List<JsExpression> temporariesInitialization(@NotNull List<TemporaryVariable> temporaries) {
064            List<JsExpression> result = Lists.newArrayList();
065            for (TemporaryVariable temporary : temporaries) {
066                result.add(temporary.assignmentExpression());
067            }
068            return result;
069        }
070    }