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.asm4.Type;
027 import org.jetbrains.jet.codegen.state.GenerationState;
028 import org.jetbrains.jet.codegen.state.GenerationStateAware;
029 import org.jetbrains.jet.codegen.state.JetTypeMapperMode;
030 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
031 import org.jetbrains.jet.lang.psi.JetFile;
032 import org.jetbrains.jet.lang.resolve.name.FqName;
033
034 import javax.inject.Inject;
035 import java.io.File;
036 import java.util.*;
037
038 import static org.jetbrains.jet.codegen.AsmUtil.asmTypeByFqNameWithoutInnerClasses;
039 import static org.jetbrains.jet.codegen.AsmUtil.isPrimitive;
040 import static org.jetbrains.jet.lang.resolve.java.PackageClassUtils.getPackageClassFqName;
041
042 public final class ClassFileFactory extends GenerationStateAware {
043 @NotNull private ClassBuilderFactory builderFactory;
044
045 private final Map<FqName, NamespaceCodegen> ns2codegen = new HashMap<FqName, NamespaceCodegen>();
046 private final Map<String, ClassBuilderAndSourceFileList> generators = new LinkedHashMap<String, ClassBuilderAndSourceFileList>();
047 private boolean isDone = false;
048
049 public ClassFileFactory(@NotNull GenerationState state) {
050 super(state);
051 }
052
053
054 @Inject
055 public void setBuilderFactory(@NotNull ClassBuilderFactory builderFactory) {
056 this.builderFactory = builderFactory;
057 }
058
059 @NotNull
060 ClassBuilder newVisitor(@NotNull Type asmType, @NotNull PsiFile sourceFile) {
061 return newVisitor(asmType, Collections.singletonList(sourceFile));
062 }
063
064 @NotNull
065 private ClassBuilder newVisitor(@NotNull Type asmType, @NotNull Collection<? extends PsiFile> sourceFiles) {
066 String outputFilePath = asmType.getInternalName() + ".class";
067 state.getProgress().reportOutput(toIoFilesIgnoringNonPhysical(sourceFiles), new File(outputFilePath));
068 ClassBuilder answer = builderFactory.newClassBuilder();
069 generators.put(outputFilePath, new ClassBuilderAndSourceFileList(answer, sourceFiles));
070 return answer;
071 }
072
073 private void done() {
074 if (!isDone) {
075 isDone = true;
076 for (NamespaceCodegen codegen : ns2codegen.values()) {
077 codegen.done();
078 }
079 }
080 }
081
082 public String asText(String file) {
083 done();
084 return builderFactory.asText(generators.get(file).classBuilder);
085 }
086
087 public byte[] asBytes(String file) {
088 done();
089 return builderFactory.asBytes(generators.get(file).classBuilder);
090 }
091
092 public List<String> files() {
093 done();
094 return new ArrayList<String>(generators.keySet());
095 }
096
097 public List<File> getSourceFiles(String relativeClassFilePath) {
098 ClassBuilderAndSourceFileList pair = generators.get(relativeClassFilePath);
099 if (pair == null) {
100 throw new IllegalStateException("No record for binary file " + relativeClassFilePath);
101 }
102
103 return ContainerUtil.mapNotNull(
104 pair.sourceFiles,
105 new Function<PsiFile, File>() {
106 @Override
107 public File fun(PsiFile file) {
108 VirtualFile virtualFile = file.getVirtualFile();
109 if (virtualFile == null) return null;
110
111 return VfsUtilCore.virtualToIoFile(virtualFile);
112 }
113 }
114 );
115 }
116
117 public String createText() {
118 StringBuilder answer = new StringBuilder();
119
120 List<String> files = files();
121 for (String file : files) {
122 // if (!file.startsWith("kotlin/")) {
123 answer.append("@").append(file).append('\n');
124 answer.append(asText(file));
125 // }
126 }
127
128 return answer.toString();
129 }
130
131 public NamespaceCodegen forNamespace(final FqName fqName, final Collection<JetFile> files) {
132 assert !isDone : "Already done!";
133 NamespaceCodegen codegen = ns2codegen.get(fqName);
134 if (codegen == null) {
135 ClassBuilderOnDemand onDemand = new ClassBuilderOnDemand() {
136 @NotNull
137 @Override
138 protected ClassBuilder createClassBuilder() {
139 return newVisitor(asmTypeByFqNameWithoutInnerClasses(getPackageClassFqName(fqName)), files);
140 }
141 };
142 codegen = new NamespaceCodegen(onDemand, fqName, state, files);
143 ns2codegen.put(fqName, codegen);
144 }
145
146 return codegen;
147 }
148
149 public ClassBuilder forClassImplementation(ClassDescriptor aClass, PsiFile sourceFile) {
150 Type type = state.getTypeMapper().mapType(aClass.getDefaultType(), JetTypeMapperMode.IMPL);
151 if (isPrimitive(type)) {
152 throw new IllegalStateException("Codegen for primitive type is not possible: " + aClass);
153 }
154 return newVisitor(type, sourceFile);
155 }
156
157 @NotNull
158 public ClassBuilder forPackageFragment(@NotNull Type asmType, @NotNull PsiFile sourceFile) {
159 return newVisitor(asmType, sourceFile);
160 }
161
162 @NotNull
163 public ClassBuilder forTraitImplementation(@NotNull ClassDescriptor aClass, @NotNull GenerationState state, @NotNull PsiFile file) {
164 Type type = state.getTypeMapper().mapType(aClass.getDefaultType(), JetTypeMapperMode.TRAIT_IMPL);
165 return newVisitor(type, file);
166 }
167
168 private static Collection<File> toIoFilesIgnoringNonPhysical(Collection<? extends PsiFile> psiFiles) {
169 List<File> result = Lists.newArrayList();
170 for (PsiFile psiFile : psiFiles) {
171 VirtualFile virtualFile = psiFile.getVirtualFile();
172 // We ignore non-physical files here, because this code is needed to tell the make what inputs affect which outputs
173 // a non-physical file cannot be processed by make
174 if (virtualFile != null) {
175 result.add(new File(virtualFile.getPath()));
176 }
177 }
178 return result;
179 }
180
181 private static class ClassBuilderAndSourceFileList {
182 private final ClassBuilder classBuilder;
183 private final Collection<? extends PsiFile> sourceFiles;
184
185 private ClassBuilderAndSourceFileList(ClassBuilder classBuilder, Collection<? extends PsiFile> sourceFiles) {
186 this.classBuilder = classBuilder;
187 this.sourceFiles = sourceFiles;
188 }
189 }
190
191 }