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.factories;
018
019import com.google.common.collect.Lists;
020import com.google.dart.compiler.backend.js.ast.JsArrayAccess;
021import com.google.dart.compiler.backend.js.ast.JsExpression;
022import com.google.dart.compiler.backend.js.ast.JsNameRef;
023import org.jetbrains.annotations.NotNull;
024import org.jetbrains.annotations.Nullable;
025import org.jetbrains.jet.lang.resolve.name.Name;
026import org.jetbrains.jet.lang.types.lang.PrimitiveType;
027import org.jetbrains.k2js.translate.context.TranslationContext;
028import org.jetbrains.k2js.translate.intrinsic.functions.basic.BuiltInPropertyIntrinsic;
029import org.jetbrains.k2js.translate.intrinsic.functions.basic.CallStandardMethodIntrinsic;
030import org.jetbrains.k2js.translate.intrinsic.functions.basic.FunctionIntrinsic;
031import org.jetbrains.k2js.translate.intrinsic.functions.patterns.NamePredicate;
032import org.jetbrains.k2js.translate.utils.JsAstUtils;
033
034import java.util.List;
035
036import static org.jetbrains.k2js.translate.intrinsic.functions.patterns.PatternBuilder.pattern;
037
038public final class ArrayFIF extends CompositeFIF {
039
040    @NotNull
041    private static final NamePredicate NUMBER_ARRAY;
042
043    @NotNull
044    private static final NamePredicate CHAR_ARRAY;
045
046    @NotNull
047    private static final NamePredicate BOOLEAN_ARRAY;
048
049    @NotNull
050    private static final NamePredicate ARRAY;
051
052    @NotNull
053    private static final NamePredicate ARRAYS;
054    static {
055        List<Name> arrayTypeNames = Lists.newArrayList();
056        for (PrimitiveType type : PrimitiveType.NUMBER_TYPES) {
057            if (type != PrimitiveType.CHAR) {
058                arrayTypeNames.add(type.getArrayTypeName());
059            }
060        }
061
062        Name arrayName = Name.identifier("Array");
063        Name booleanArrayName = PrimitiveType.BOOLEAN.getArrayTypeName();
064        Name charArrayName = PrimitiveType.CHAR.getArrayTypeName();
065
066        NUMBER_ARRAY = new NamePredicate(arrayTypeNames);
067        CHAR_ARRAY = new NamePredicate(charArrayName);
068        BOOLEAN_ARRAY = new NamePredicate(booleanArrayName);
069        ARRAY = new NamePredicate(arrayName);
070
071        arrayTypeNames.add(charArrayName);
072        arrayTypeNames.add(booleanArrayName);
073        arrayTypeNames.add(arrayName);
074        ARRAYS = new NamePredicate(arrayTypeNames);
075    }
076
077    @NotNull
078    private static final FunctionIntrinsic GET_INTRINSIC = new FunctionIntrinsic() {
079        @NotNull
080        @Override
081        public JsExpression apply(@Nullable JsExpression receiver,
082                @NotNull List<JsExpression> arguments,
083                @NotNull TranslationContext context) {
084            assert receiver != null;
085            assert arguments.size() == 1 : "Array get expression must have one argument.";
086            JsExpression indexExpression = arguments.get(0);
087            return new JsArrayAccess(receiver, indexExpression);
088        }
089    };
090
091    @NotNull
092    private static final FunctionIntrinsic SET_INTRINSIC = new FunctionIntrinsic() {
093        @NotNull
094        @Override
095        public JsExpression apply(@Nullable JsExpression receiver,
096                @NotNull List<JsExpression> arguments,
097                @NotNull TranslationContext context) {
098            assert receiver != null;
099            assert arguments.size() == 2 : "Array set expression must have two arguments.";
100            JsExpression indexExpression = arguments.get(0);
101            JsExpression value = arguments.get(1);
102            JsArrayAccess arrayAccess = new JsArrayAccess(receiver, indexExpression);
103            return JsAstUtils.assignment(arrayAccess, value);
104        }
105    };
106
107    @NotNull
108    public static final BuiltInPropertyIntrinsic ARRAY_LENGTH_INTRINSIC = new BuiltInPropertyIntrinsic("length");
109
110    @NotNull
111    public static final FunctionIntrinsicFactory INSTANCE = new ArrayFIF();
112
113    private ArrayFIF() {
114        add(pattern(ARRAYS, "get"), GET_INTRINSIC);
115        add(pattern(ARRAYS, "set"), SET_INTRINSIC);
116        add(pattern(ARRAYS, "<get-size>"), ARRAY_LENGTH_INTRINSIC);
117        add(pattern(ARRAYS, "<get-indices>"), new CallStandardMethodIntrinsic(new JsNameRef("arrayIndices", "Kotlin"), true, 0));
118        add(pattern(ARRAYS, "iterator"), new CallStandardMethodIntrinsic(new JsNameRef("arrayIterator", "Kotlin"), true, 0));
119        add(pattern(ARRAY, "<init>"), new CallStandardMethodIntrinsic(new JsNameRef("arrayFromFun", "Kotlin"), false, 2));
120        add(pattern(NUMBER_ARRAY, "<init>"), new CallStandardMethodIntrinsic(new JsNameRef("numberArrayOfSize", "Kotlin"), false, 1));
121        add(pattern(CHAR_ARRAY, "<init>"), new CallStandardMethodIntrinsic(new JsNameRef("charArrayOfSize", "Kotlin"), false, 1));
122        add(pattern(BOOLEAN_ARRAY, "<init>"), new CallStandardMethodIntrinsic(new JsNameRef("booleanArrayOfSize", "Kotlin"), false, 1));
123    }
124}