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.VirtualFile;
021 import com.intellij.psi.PsiFile;
022 import org.jetbrains.annotations.NotNull;
023 import org.jetbrains.asm4.Type;
024 import org.jetbrains.jet.codegen.state.GenerationState;
025 import org.jetbrains.jet.codegen.state.GenerationStateAware;
026 import org.jetbrains.jet.codegen.state.JetTypeMapperMode;
027 import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
028 import org.jetbrains.jet.lang.psi.JetFile;
029 import org.jetbrains.jet.lang.resolve.name.FqName;
030
031 import javax.inject.Inject;
032 import java.io.File;
033 import java.util.*;
034
035 import static org.jetbrains.jet.codegen.AsmUtil.isPrimitive;
036
037 public final class ClassFileFactory extends GenerationStateAware {
038 @NotNull private ClassBuilderFactory builderFactory;
039
040 private final Map<FqName, NamespaceCodegen> ns2codegen = new HashMap<FqName, NamespaceCodegen>();
041 private final Map<String, ClassBuilder> generators = new LinkedHashMap<String, ClassBuilder>();
042 private boolean isDone = false;
043
044 public ClassFileFactory(@NotNull GenerationState state) {
045 super(state);
046 }
047
048
049 @Inject
050 public void setBuilderFactory(@NotNull ClassBuilderFactory builderFactory) {
051 this.builderFactory = builderFactory;
052 }
053
054 ClassBuilder newVisitor(String internalClassName, PsiFile sourceFile) {
055 return newVisitor(internalClassName + ".class", Collections.singletonList(sourceFile));
056 }
057
058 private ClassBuilder newVisitor(String outputFilePath, Collection<? extends PsiFile> sourceFiles) {
059 state.getProgress().reportOutput(toIoFilesIgnoringNonPhysical(sourceFiles), new File(outputFilePath));
060 ClassBuilder answer = builderFactory.newClassBuilder();
061 generators.put(outputFilePath, answer);
062 return answer;
063 }
064
065 private void done() {
066 if (!isDone) {
067 isDone = true;
068 for (NamespaceCodegen codegen : ns2codegen.values()) {
069 codegen.done();
070 }
071 }
072 }
073
074 public String asText(String file) {
075 done();
076 return builderFactory.asText(generators.get(file));
077 }
078
079 public byte[] asBytes(String file) {
080 done();
081 return builderFactory.asBytes(generators.get(file));
082 }
083
084 public List<String> files() {
085 done();
086 return new ArrayList<String>(generators.keySet());
087 }
088
089 public String createText() {
090 StringBuilder answer = new StringBuilder();
091
092 List<String> files = files();
093 for (String file : files) {
094 // if (!file.startsWith("kotlin/")) {
095 answer.append("@").append(file).append('\n');
096 answer.append(asText(file));
097 // }
098 }
099
100 return answer.toString();
101 }
102
103 public NamespaceCodegen forNamespace(final FqName fqName, final Collection<JetFile> files) {
104 assert !isDone : "Already done!";
105 NamespaceCodegen codegen = ns2codegen.get(fqName);
106 if (codegen == null) {
107 ClassBuilderOnDemand onDemand = new ClassBuilderOnDemand() {
108 @NotNull
109 @Override
110 protected ClassBuilder createClassBuilder() {
111 return newVisitor(
112 NamespaceCodegen.getJVMClassNameForKotlinNs(fqName).getInternalName() + ".class",
113 files
114 );
115 }
116 };
117 codegen = new NamespaceCodegen(onDemand, fqName, state, files);
118 ns2codegen.put(fqName, codegen);
119 }
120
121 return codegen;
122 }
123
124 public ClassBuilder forClassImplementation(ClassDescriptor aClass, PsiFile sourceFile) {
125 Type type = state.getTypeMapper().mapType(aClass.getDefaultType(), JetTypeMapperMode.IMPL);
126 if (isPrimitive(type)) {
127 throw new IllegalStateException("Codegen for primitive type is not possible: " + aClass);
128 }
129 return newVisitor(type.getInternalName(), sourceFile);
130 }
131
132 public ClassBuilder forNamespacepart(String internalName, PsiFile sourceFile) {
133 return newVisitor(internalName, sourceFile);
134 }
135
136 public ClassBuilder forTraitImplementation(ClassDescriptor aClass, GenerationState state, PsiFile sourceFile) {
137 return newVisitor(
138 state.getTypeMapper().mapType(aClass.getDefaultType(), JetTypeMapperMode.TRAIT_IMPL).getInternalName(),
139 sourceFile);
140 }
141
142 private static Collection<File> toIoFilesIgnoringNonPhysical(Collection<? extends PsiFile> psiFiles) {
143 List<File> result = Lists.newArrayList();
144 for (PsiFile psiFile : psiFiles) {
145 VirtualFile virtualFile = psiFile.getVirtualFile();
146 // We ignore non-physical files here, because this code is needed to tell the make what inputs affect which outputs
147 // a non-physical file cannot be processed by make
148 if (virtualFile != null) {
149 result.add(new File(virtualFile.getPath()));
150 }
151 }
152 return result;
153 }
154
155 }