/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.jps.builders.java.dependencyView;
import com.intellij.util.io.DataExternalizer;
import com.intellij.util.io.DataInputOutputUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.jps.builders.storage.BuildDataCorruptedException;
import org.jetbrains.org.objectweb.asm.Type;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Collection;
import java.util.Set;
/**
* @author: db
* Date: 14.02.11
*/
public class TypeRepr {
private static final byte PRIMITIVE_TYPE = 0x0;
private static final byte CLASS_TYPE = 0x1;
private static final byte ARRAY_TYPE = 0x2;
private TypeRepr() {
}
interface AbstractType extends RW.Savable {
AbstractType[] EMPTY_TYPE_ARRAY = new AbstractType[0];
void updateClassUsages(DependencyContext context, int owner, Set<UsageRepr.Usage> s);
String getDescr(DependencyContext context);
void save(DataOutput out);
}
public static class PrimitiveType implements AbstractType {
public final int type;
@Override
public String getDescr(final DependencyContext context) {
return context.getValue(type);
}
@Override
public void updateClassUsages(final DependencyContext context, final int owner, final Set<UsageRepr.Usage> s) {
}
@Override
public void save(final DataOutput out) {
try {
out.writeByte(PRIMITIVE_TYPE);
DataInputOutputUtil.writeINT(out, type);
}
catch (IOException e) {
throw new BuildDataCorruptedException(e);
}
}
PrimitiveType(final int type) {
this.type = type;
}
PrimitiveType(final DataInput in) {
try {
type = DataInputOutputUtil.readINT(in);
}
catch (IOException e) {
throw new BuildDataCorruptedException(e);
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final PrimitiveType that = (PrimitiveType)o;
return type == that.type;
}
@Override
public int hashCode() {
return type;
}
}
public static class ArrayType implements AbstractType {
public final AbstractType elementType;
public AbstractType getDeepElementType() {
AbstractType current = this;
while (current instanceof ArrayType) {
current = ((ArrayType)current).elementType;
}
return current;
}
@Override
public String getDescr(final DependencyContext context) {
return "[" + elementType.getDescr(context);
}
@Override
public void updateClassUsages(final DependencyContext context, final int owner, final Set<UsageRepr.Usage> s) {
elementType.updateClassUsages(context, owner, s);
}
ArrayType(final AbstractType elementType) {
this.elementType = elementType;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
final ArrayType arrayType = (ArrayType)o;
return elementType.equals(arrayType.elementType);
}
@Override
public int hashCode() {
return elementType.hashCode();
}
@Override
public void save(final DataOutput out) {
try {
out.writeByte(ARRAY_TYPE);
elementType.save(out);
}
catch (IOException e) {
throw new BuildDataCorruptedException(e);
}
}
}
public static class ClassType implements AbstractType {
public static final ClassType[] EMPTY_ARRAY = new ClassType[0];
public final int className;
@Override
public String getDescr(final DependencyContext context) {
return "L" + context.getValue(className) + ";";
}
@Override
public void updateClassUsages(final DependencyContext context, final int owner, final Set<UsageRepr.Usage> s) {
s.add(UsageRepr.createClassUsage(context, className));
}
ClassType(final int className) {
this.className = className;
}
ClassType(final DataInput in) {
try {
className = DataInputOutputUtil.readINT(in);
}
catch (IOException e) {
throw new BuildDataCorruptedException(e);
}
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ClassType type = (ClassType)o;
if (className != type.className) return false;
return true;
}
@Override
public int hashCode() {
return className;
}
@Override
public void save(final DataOutput out) {
try {
out.writeByte(CLASS_TYPE);
DataInputOutputUtil.writeINT(out, className);
}
catch (IOException e) {
throw new BuildDataCorruptedException(e);
}
}
}
public static Collection<AbstractType> createClassType(final DependencyContext context,
final String[] args,
final Collection<AbstractType> acc) {
if (args != null) {
for (String a : args) {
acc.add(createClassType(context, context.get(a)));
}
}
return acc;
}
public static ClassType createClassType(final DependencyContext context, final int s) {
return (ClassType)context.getType(new ClassType(s));
}
public static AbstractType getType(final DependencyContext context, final int descr) {
return getType(InternedString.create(context, descr));
}
public static AbstractType getType(final DependencyContext context, final String descr) {
return getType(InternedString.create(context, descr));
}
public static AbstractType getType(InternedString descr) {
final DependencyContext context = descr.getContext();
final Type t = Type.getType(descr.asString());
switch (t.getSort()) {
case Type.OBJECT:
return context.getType(new ClassType(context.get(t.getClassName().replace('.', '/'))));
case Type.ARRAY:
return context.getType(new ArrayType(getType(context, t.getElementType())));
default:
return context.getType(new PrimitiveType(descr.asInt()));
}
}
public static AbstractType getType(final DependencyContext context, final Type t) {
return getType(context, t.getDescriptor());
}
public static AbstractType[] getType(final DependencyContext context, final Type[] t) {
if(t.length == 0) return AbstractType.EMPTY_TYPE_ARRAY;
final AbstractType[] r = new AbstractType[t.length];
for (int i = 0; i < r.length; i++) {
r[i] = getType(context, t[i]);
}
return r;
}
public static DataExternalizer<ClassType> classTypeExternalizer(final DependencyContext context) {
final DataExternalizer<AbstractType> delegate = externalizer(context);
return new DataExternalizer<ClassType>() {
@Override
public void save(@NotNull DataOutput out, ClassType value) throws IOException {
delegate.save(out, value);
}
@Override
public ClassType read(@NotNull DataInput in) throws IOException {
final AbstractType read = delegate.read(in);
if (read instanceof ClassType) {
return (ClassType)read;
}
throw new IOException("Expected: "+ ClassType.class.getName() + "; Actual: " + (read == null? "null" : read.getClass().getName()));
}
};
}
public static DataExternalizer<AbstractType> externalizer(final DependencyContext context) {
return new DataExternalizer<AbstractType>() {
@Override
public void save(@NotNull final DataOutput out, final AbstractType value) throws IOException {
value.save(out);
}
@Override
public AbstractType read(@NotNull final DataInput in) throws IOException {
AbstractType elementType;
int level = 0;
loop:
while (true) {
final byte tag = in.readByte();
switch (tag) {
case PRIMITIVE_TYPE:
elementType = context.getType(new PrimitiveType(in));
break loop;
case CLASS_TYPE:
elementType = context.getType(new ClassType(in));
break loop;
case ARRAY_TYPE:
level++;
break;
default :
System.out.println("Unknown type!");
}
}
for (int i = 0; i < level; i++) {
elementType = context.getType(new ArrayType(elementType));
}
return elementType;
}
};
}
}