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.JsConfig;
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.progress.ProgressIndicatorAndCompilationCanceledStatus;
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.ArrayList;
036    import java.util.List;
037    
038    import static org.jetbrains.kotlin.diagnostics.DiagnosticUtils.hasError;
039    import static org.jetbrains.kotlin.js.translate.utils.ExpandIsCallsKt.expandIsCalls;
040    
041    /**
042     * An entry point of translator.
043     */
044    public final class K2JSTranslator {
045    
046        public static final String FLUSH_SYSTEM_OUT = "kotlin.out.flush();\n";
047        public static final String GET_SYSTEM_OUT = "kotlin.out.buffer;\n";
048    
049        @NotNull
050        private final JsConfig config;
051    
052        public K2JSTranslator(@NotNull JsConfig config) {
053            this.config = config;
054        }
055    
056        @NotNull
057        public TranslationResult translate(
058                @NotNull List<KtFile> files,
059                @NotNull MainCallParameters mainCallParameters
060        ) throws TranslationException {
061            return translate(files, mainCallParameters, null);
062        }
063    
064        @NotNull
065        public TranslationResult translate(
066                @NotNull List<KtFile> files,
067                @NotNull MainCallParameters mainCallParameters,
068                @Nullable JsAnalysisResult analysisResult
069        ) throws TranslationException {
070            if (analysisResult == null) {
071                analysisResult = TopDownAnalyzerFacadeForJS.analyzeFiles(files, config);
072                ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
073            }
074    
075            BindingTrace bindingTrace = analysisResult.getBindingTrace();
076            TopDownAnalyzerFacadeForJS.checkForErrors(JsConfig.withJsLibAdded(files, config), bindingTrace.getBindingContext());
077            ModuleDescriptor moduleDescriptor = analysisResult.getModuleDescriptor();
078            Diagnostics diagnostics = bindingTrace.getBindingContext().getDiagnostics();
079    
080            TranslationContext context = Translation.generateAst(bindingTrace, files, mainCallParameters, moduleDescriptor, config);
081            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
082            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
083    
084            JsProgram program = JsInliner.process(context);
085            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
086            if (hasError(diagnostics)) return new TranslationResult.Fail(diagnostics);
087    
088            expandIsCalls(program, context);
089            ProgressIndicatorAndCompilationCanceledStatus.checkCanceled();
090    
091            List<String> importedModules = new ArrayList<String>(context.getImportedModules().keySet());
092            return new TranslationResult.Success(config, files, program, diagnostics, importedModules, moduleDescriptor);
093        }
094    }