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.intellij.openapi.util.Pair;
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.descriptors.ScriptDescriptor;
024    import org.jetbrains.jet.lang.psi.JetFile;
025    import org.jetbrains.jet.lang.psi.JetPsiUtil;
026    import org.jetbrains.jet.lang.psi.JetScript;
027    import org.jetbrains.jet.lang.resolve.ScriptNameUtil;
028    import org.jetbrains.jet.lang.resolve.java.JvmClassName;
029    import org.jetbrains.jet.lang.resolve.name.FqName;
030    
031    import java.util.Collection;
032    import java.util.Collections;
033    import java.util.Map;
034    
035    import static org.jetbrains.jet.codegen.binding.CodegenBinding.registerClassNameForScript;
036    
037    public class KotlinCodegenFacade {
038        public static void compileCorrectFiles(
039                @NotNull GenerationState state,
040                @NotNull CompilationErrorHandler errorHandler
041        ) {
042            for (JetFile file : state.getFiles()) {
043                if (file.isScript()) {
044                    String name = ScriptNameUtil.classNameForScript(file);
045                    JetScript script = file.getScript();
046                    assert script != null;
047                    registerClassNameForScript(state.getBindingTrace(), script, JvmClassName.byInternalName(name));
048                }
049            }
050    
051            state.getScriptCodegen().registerEarlierScripts(Collections.<Pair<ScriptDescriptor, JvmClassName>>emptyList());
052    
053            state.beforeCompile();
054    
055            MultiMap<FqName, JetFile> namespaceGrouping = new MultiMap<FqName, JetFile>();
056            for (JetFile file : state.getFiles()) {
057                if (file == null) throw new IllegalArgumentException("A null file given for compilation");
058                namespaceGrouping.putValue(JetPsiUtil.getFQName(file), file);
059            }
060    
061            for (Map.Entry<FqName, Collection<JetFile>> entry : namespaceGrouping.entrySet()) {
062                generateNamespace(state, entry.getKey(), entry.getValue(), errorHandler);
063            }
064        }
065    
066        public static void generateNamespace(
067                @NotNull GenerationState state,
068                @NotNull FqName fqName,
069                @NotNull Collection<JetFile> jetFiles,
070                @NotNull CompilationErrorHandler errorHandler
071        ) {
072                NamespaceCodegen codegen = state.getFactory().forNamespace(fqName, jetFiles);
073                codegen.generate(errorHandler);
074        }
075    
076        private KotlinCodegenFacade() {}
077    }