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.progress.ProgressIndicatorAndCompilationCanceledStatus;
023    import org.jetbrains.kotlin.descriptors.ModuleDescriptor;
024    import org.jetbrains.kotlin.js.analyze.TopDownAnalyzerFacadeForJS;
025    import org.jetbrains.kotlin.js.analyzer.JsAnalysisResult;
026    import org.jetbrains.kotlin.js.config.Config;
027    import org.jetbrains.kotlin.js.facade.exceptions.TranslationException;
028    import org.jetbrains.kotlin.js.inline.JsInliner;
029    import org.jetbrains.kotlin.js.translate.context.TranslationContext;
030    import org.jetbrains.kotlin.js.translate.general.Translation;
031    import org.jetbrains.kotlin.psi.KtFile;
032    import org.jetbrains.kotlin.resolve.BindingTrace;
033    import org.jetbrains.kotlin.resolve.diagnostics.Diagnostics;
034    
035    import java.util.List;
036    
037    import static org.jetbrains.kotlin.diagnostics.DiagnosticUtils.hasError;
038    import static org.jetbrains.kotlin.js.translate.utils.ExpandIsCallsKt.expandIsCalls;
039    
040    /**
041     * An entry point of translator.
042     */
043    public final class K2JSTranslator {
044    
045        public static final String FLUSH_SYSTEM_OUT = "Kotlin.out.flush();\n";
046        public static final String GET_SYSTEM_OUT = "Kotlin.out.buffer;\n";
047    
048        @NotNull
049        private final Config config;
050    
051        public K2JSTranslator(@NotNull Config config) {
052            this.config = config;
053        }
054    
055        @NotNull
056        public TranslationResult translate(
057                @NotNull List<KtFile> files,
058                @NotNull MainCallParameters mainCallParameters
059        ) throws TranslationException {
060            return translate(files, mainCallParameters, null);
061        }
062    
063        @NotNull
064        public TranslationResult translate(
065                @NotNull List<KtFile> files,
066                @NotNull MainCallParameters mainCallParameters,
067                @Nullable JsAnalysisResult analysisResult
068        ) throws TranslationException {
069            if (analysisResult == null) {
070                analysisResult = TopDownAnalyzerFacadeForJS.analyzeFiles(files, config);
071                ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
072            }
073    
074            BindingTrace bindingTrace = analysisResult.getBindingTrace();
075            TopDownAnalyzerFacadeForJS.checkForErrors(Config.withJsLibAdded(files, config), bindingTrace.getBindingContext());
076            ModuleDescriptor moduleDescriptor = analysisResult.getModuleDescriptor();
077            Diagnostics diagnostics = bindingTrace.getBindingContext().getDiagnostics();
078    
079            TranslationContext context = Translation.generateAst(bindingTrace, files, mainCallParameters, moduleDescriptor, config);
080            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
081            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
082    
083            JsProgram program = JsInliner.process(context);
084            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
085            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
086    
087            expandIsCalls(program, context);
088            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
089            return new TranslationResult.Success(config, files, program, diagnostics, moduleDescriptor);
090        }
091    }