001/*
002 * Copyright 2010-2013 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
017package org.jetbrains.k2js.translate.intrinsic.functions.basic;
018
019import com.google.dart.compiler.backend.js.ast.JsExpression;
020import org.jetbrains.annotations.NotNull;
021import org.jetbrains.annotations.Nullable;
022import org.jetbrains.k2js.translate.context.TranslationContext;
023
024import java.util.List;
025
026/**
027 * Base for intrinsics that substitute standard function calls like Int#plus, Float#minus ... etc
028 */
029public abstract class FunctionIntrinsic {
030
031    @NotNull
032    public static final FunctionIntrinsic NO_INTRINSIC = new FunctionIntrinsic() {
033        @Override
034        public boolean exists() {
035            return false;
036        }
037
038        @NotNull
039        @Override
040        public JsExpression apply(@Nullable JsExpression receiver,
041                @NotNull List<JsExpression> arguments,
042                @NotNull TranslationContext context) {
043            throw new UnsupportedOperationException("FunctionIntrinsic#NO_INTRINSIC_#apply");
044        }
045    };
046
047    @NotNull
048    public abstract JsExpression apply(@Nullable JsExpression receiver, @NotNull List<JsExpression> arguments,
049            @NotNull TranslationContext context);
050
051    public boolean exists() {
052        return true;
053    }
054}