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    
017    package org.jetbrains.jet.codegen;
018    
019    import com.google.common.collect.Sets;
020    import com.intellij.util.containers.MultiMap;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.jet.codegen.state.GenerationState;
023    import org.jetbrains.jet.lang.psi.JetFile;
024    import org.jetbrains.jet.lang.psi.JetScript;
025    import org.jetbrains.jet.lang.resolve.ScriptNameUtil;
026    import org.jetbrains.jet.lang.resolve.name.FqName;
027    import org.jetbrains.org.objectweb.asm.Type;
028    
029    import java.util.Collection;
030    import java.util.HashSet;
031    import java.util.Set;
032    
033    import static org.jetbrains.jet.codegen.binding.CodegenBinding.registerClassNameForScript;
034    
035    public class KotlinCodegenFacade {
036    
037        public static void prepareForCompilation(@NotNull GenerationState state) {
038            for (JetFile file : state.getFiles()) {
039                if (file.isScript()) {
040                    // SCRIPT: register class name for scripting from this file, move outside of this function
041                    JetScript script = file.getScript();
042                    assert script != null;
043    
044                    FqName name = ScriptNameUtil.classNameForScript(script);
045                    Type type = AsmUtil.asmTypeByFqNameWithoutInnerClasses(name);
046                    registerClassNameForScript(state.getBindingTrace(), script, type);
047                }
048            }
049    
050            state.beforeCompile();
051        }
052    
053        public static void compileCorrectFiles(
054                @NotNull GenerationState state,
055                @NotNull CompilationErrorHandler errorHandler
056        ) {
057            prepareForCompilation(state);
058    
059            MultiMap<FqName, JetFile> packageFqNameToFiles = new MultiMap<FqName, JetFile>();
060            for (JetFile file : state.getFiles()) {
061                if (file == null) throw new IllegalArgumentException("A null file given for compilation");
062                packageFqNameToFiles.putValue(file.getPackageFqName(), file);
063            }
064    
065            Set<FqName> removedPackageFiles = new HashSet<FqName>(state.getPackagesWithRemovedFiles());
066            for (FqName fqName : Sets.union(removedPackageFiles, packageFqNameToFiles.keySet())) {
067                generatePackage(state, fqName, packageFqNameToFiles.get(fqName), errorHandler);
068            }
069    
070            state.getFactory().done();
071        }
072    
073        public static void generatePackage(
074                @NotNull GenerationState state,
075                @NotNull FqName fqName,
076                @NotNull Collection<JetFile> jetFiles,
077                @NotNull CompilationErrorHandler errorHandler
078        ) {
079            PackageCodegen codegen = state.getFactory().forPackage(fqName, jetFiles);
080            codegen.generate(errorHandler);
081        }
082    
083        private KotlinCodegenFacade() {}
084    }