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.Lists;
020 import com.intellij.openapi.vfs.VfsUtilCore;
021 import com.intellij.openapi.vfs.VirtualFile;
022 import com.intellij.psi.PsiFile;
023 import com.intellij.util.Function;
024 import com.intellij.util.containers.ContainerUtil;
025 import org.jetbrains.annotations.NotNull;
026 import org.jetbrains.annotations.Nullable;
027 import org.jetbrains.annotations.TestOnly;
028 import org.jetbrains.jet.OutputFile;
029 import org.jetbrains.jet.OutputFileCollection;
030 import org.jetbrains.jet.codegen.state.GenerationState;
031 import org.jetbrains.jet.lang.psi.JetFile;
032 import org.jetbrains.jet.lang.resolve.name.FqName;
033 import org.jetbrains.org.objectweb.asm.Type;
034
035 import java.io.File;
036 import java.util.*;
037
038 public class ClassFileFactory implements OutputFileCollection {
039 private final GenerationState state;
040 private final ClassBuilderFactory builderFactory;
041 private final Map<FqName, PackageCodegen> package2codegen = new HashMap<FqName, PackageCodegen>();
042 private final Map<String, ClassBuilderAndSourceFileList> generators = new LinkedHashMap<String, ClassBuilderAndSourceFileList>();
043
044 private boolean isDone = false;
045
046 public ClassFileFactory(@NotNull GenerationState state, @NotNull ClassBuilderFactory builderFactory) {
047 this.state = state;
048 this.builderFactory = builderFactory;
049 }
050
051 @NotNull
052 public ClassBuilder newVisitor(@NotNull Type asmType, @NotNull PsiFile sourceFile) {
053 return newVisitor(asmType, Collections.singletonList(sourceFile));
054 }
055
056 @NotNull
057 public ClassBuilder newVisitor(@NotNull Type asmType, @NotNull Collection<? extends PsiFile> sourceFiles) {
058 String outputFilePath = asmType.getInternalName() + ".class";
059 state.getProgress().reportOutput(toIoFilesIgnoringNonPhysical(sourceFiles), new File(outputFilePath));
060 ClassBuilder answer = builderFactory.newClassBuilder();
061 generators.put(outputFilePath, new ClassBuilderAndSourceFileList(answer, sourceFiles));
062 return answer;
063 }
064
065 void done() {
066 if (!isDone) {
067 isDone = true;
068 for (PackageCodegen codegen : package2codegen.values()) {
069 codegen.done();
070 }
071 }
072 }
073
074 @NotNull
075 @Override
076 public List<OutputFile> asList() {
077 done();
078 return ContainerUtil.map(generators.keySet(), new Function<String, OutputFile>() {
079 @Override
080 public OutputFile fun(String relativeClassFilePath) {
081 return new OutputClassFile(relativeClassFilePath);
082 }
083 });
084 }
085
086 @Override
087 @Nullable
088 public OutputFile get(@NotNull String relativePath) {
089 return generators.containsKey(relativePath) ? new OutputClassFile(relativePath) : null;
090 }
091
092 @NotNull
093 @TestOnly
094 public String createText() {
095 StringBuilder answer = new StringBuilder();
096
097 for (OutputFile file : asList()) {
098 answer.append("@").append(file.getRelativePath()).append('\n');
099 answer.append(file.asText());
100 }
101
102 return answer.toString();
103 }
104
105 @NotNull
106 public PackageCodegen forPackage(@NotNull FqName fqName, @NotNull Collection<JetFile> files) {
107 assert !isDone : "Already done!";
108 PackageCodegen codegen = package2codegen.get(fqName);
109 if (codegen == null) {
110 codegen = new PackageCodegen(state, files, fqName);
111 package2codegen.put(fqName, codegen);
112 }
113
114 return codegen;
115 }
116
117 @NotNull
118 private static Collection<File> toIoFilesIgnoringNonPhysical(@NotNull Collection<? extends PsiFile> psiFiles) {
119 List<File> result = Lists.newArrayList();
120 for (PsiFile psiFile : psiFiles) {
121 VirtualFile virtualFile = psiFile.getVirtualFile();
122 // We ignore non-physical files here, because this code is needed to tell the make what inputs affect which outputs
123 // a non-physical file cannot be processed by make
124 if (virtualFile != null) {
125 result.add(new File(virtualFile.getPath()));
126 }
127 }
128 return result;
129 }
130
131 private class OutputClassFile implements OutputFile {
132 private final String relativeClassFilePath;
133
134 public OutputClassFile(String relativeClassFilePath) {
135 this.relativeClassFilePath = relativeClassFilePath;
136 }
137
138 @NotNull
139 @Override
140 public String getRelativePath() {
141 return relativeClassFilePath;
142 }
143
144 @NotNull
145 @Override
146 public List<File> getSourceFiles() {
147 ClassBuilderAndSourceFileList pair = generators.get(relativeClassFilePath);
148 if (pair == null) {
149 throw new IllegalStateException("No record for binary file " + relativeClassFilePath);
150 }
151
152 return ContainerUtil.mapNotNull(
153 pair.sourceFiles,
154 new Function<PsiFile, File>() {
155 @Override
156 public File fun(PsiFile file) {
157 VirtualFile virtualFile = file.getVirtualFile();
158 if (virtualFile == null) return null;
159
160 return VfsUtilCore.virtualToIoFile(virtualFile);
161 }
162 }
163 );
164 }
165
166 @NotNull
167 @Override
168 public byte[] asByteArray() {
169 return builderFactory.asBytes(generators.get(relativeClassFilePath).classBuilder);
170 }
171
172 @NotNull
173 @Override
174 public String asText() {
175 return builderFactory.asText(generators.get(relativeClassFilePath).classBuilder);
176 }
177
178 @NotNull
179 @Override
180 public String toString() {
181 return getRelativePath() + " (compiled from " + getSourceFiles() + ")";
182 }
183 }
184
185 private static final class ClassBuilderAndSourceFileList {
186 private final ClassBuilder classBuilder;
187 private final Collection<? extends PsiFile> sourceFiles;
188
189 private ClassBuilderAndSourceFileList(ClassBuilder classBuilder, Collection<? extends PsiFile> sourceFiles) {
190 this.classBuilder = classBuilder;
191 this.sourceFiles = sourceFiles;
192 }
193 }
194
195 public void removeInlinedClasses(Set<String> classNamesToRemove) {
196 for (String classInternalName : classNamesToRemove) {
197 generators.remove(classInternalName + ".class");
198 }
199 }
200 }