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.facade;
018    
019    import com.google.dart.compiler.backend.js.ast.JsProgram;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.Nullable;
022    import org.jetbrains.kotlin.descriptors.ModuleDescriptor;
023    import org.jetbrains.kotlin.js.analyze.TopDownAnalyzerFacadeForJS;
024    import org.jetbrains.kotlin.js.analyzer.JsAnalysisResult;
025    import org.jetbrains.kotlin.js.config.Config;
026    import org.jetbrains.kotlin.js.facade.exceptions.TranslationException;
027    import org.jetbrains.kotlin.js.inline.JsInliner;
028    import org.jetbrains.kotlin.js.translate.context.TranslationContext;
029    import org.jetbrains.kotlin.js.translate.general.Translation;
030    import org.jetbrains.kotlin.psi.JetFile;
031    import org.jetbrains.kotlin.resolve.BindingTrace;
032    import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
033    
034    import java.util.List;
035    
036    import static org.jetbrains.kotlin.diagnostics.DiagnosticUtils.hasError;
037    import static org.jetbrains.kotlin.js.translate.utils.UtilsPackage.expandIsCalls;
038    
039    /**
040     * An entry point of translator.
041     */
042    public final class K2JSTranslator {
043    
044        public static final String FLUSH_SYSTEM_OUT = "Kotlin.out.flush();\n";
045        public static final String GET_SYSTEM_OUT = "Kotlin.out.buffer;\n";
046    
047        @NotNull
048        private final Config config;
049    
050        public K2JSTranslator(@NotNull Config config) {
051            this.config = config;
052        }
053    
054        @NotNull
055        public TranslationResult translate(
056                @NotNull List<JetFile> files,
057                @NotNull MainCallParameters mainCallParameters
058        ) throws TranslationException {
059            return translate(files, mainCallParameters, null);
060        }
061    
062        @NotNull
063        public TranslationResult translate(
064                @NotNull List<JetFile> files,
065                @NotNull MainCallParameters mainCallParameters,
066                @Nullable JsAnalysisResult analysisResult
067        ) throws TranslationException {
068            if (analysisResult == null) {
069                analysisResult = TopDownAnalyzerFacadeForJS.analyzeFiles(files, config);
070            }
071    
072            BindingTrace bindingTrace = analysisResult.getBindingTrace();
073            TopDownAnalyzerFacadeForJS.checkForErrors(Config.withJsLibAdded(files, config), bindingTrace.getBindingContext());
074            ModuleDescriptor moduleDescriptor = analysisResult.getModuleDescriptor();
075            Diagnostics diagnostics = bindingTrace.getBindingContext().getDiagnostics();
076    
077            TranslationContext context = Translation.generateAst(bindingTrace, files, mainCallParameters, moduleDescriptor, config);
078            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
079    
080            JsProgram program = JsInliner.process(context);
081            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
082    
083            expandIsCalls(program, context);
084            return new TranslationResult.Success(config, files, program, diagnostics, moduleDescriptor);
085        }
086    }