250 lines
7.0 KiB
Java
250 lines
7.0 KiB
Java
/*
|
|
* 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.java.decompiler.struct.gen.generics;
|
|
|
|
import org.jetbrains.java.decompiler.code.CodeConstants;
|
|
import org.jetbrains.java.decompiler.main.DecompilerContext;
|
|
import org.jetbrains.java.decompiler.main.extern.IFernflowerLogger;
|
|
import org.jetbrains.java.decompiler.struct.StructClass;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
public class GenericMain {
|
|
|
|
private static final String[] typeNames = {
|
|
"byte",
|
|
"char",
|
|
"double",
|
|
"float",
|
|
"int",
|
|
"long",
|
|
"short",
|
|
"boolean",
|
|
};
|
|
|
|
public static GenericClassDescriptor parseClassSignature(String signature) {
|
|
String original = signature;
|
|
try {
|
|
GenericClassDescriptor descriptor = new GenericClassDescriptor();
|
|
|
|
signature = parseFormalParameters(signature, descriptor.fparameters, descriptor.fbounds);
|
|
|
|
String superCl = GenericType.getNextType(signature);
|
|
descriptor.superclass = new GenericType(superCl);
|
|
|
|
signature = signature.substring(superCl.length());
|
|
while (signature.length() > 0) {
|
|
String superIf = GenericType.getNextType(signature);
|
|
descriptor.superinterfaces.add(new GenericType(superIf));
|
|
signature = signature.substring(superIf.length());
|
|
}
|
|
|
|
return descriptor;
|
|
}
|
|
catch (RuntimeException e) {
|
|
DecompilerContext.getLogger().writeMessage("Invalid signature: " + original, IFernflowerLogger.Severity.WARN);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static GenericFieldDescriptor parseFieldSignature(String signature) {
|
|
try {
|
|
GenericFieldDescriptor descriptor = new GenericFieldDescriptor();
|
|
descriptor.type = new GenericType(signature);
|
|
return descriptor;
|
|
}
|
|
catch (RuntimeException e) {
|
|
DecompilerContext.getLogger().writeMessage("Invalid signature: " + signature, IFernflowerLogger.Severity.WARN);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static GenericMethodDescriptor parseMethodSignature(String signature) {
|
|
String original = signature;
|
|
try {
|
|
GenericMethodDescriptor descriptor = new GenericMethodDescriptor();
|
|
|
|
signature = parseFormalParameters(signature, descriptor.fparameters, descriptor.fbounds);
|
|
|
|
int to = signature.indexOf(")");
|
|
String pars = signature.substring(1, to);
|
|
signature = signature.substring(to + 1);
|
|
|
|
while (pars.length() > 0) {
|
|
String par = GenericType.getNextType(pars);
|
|
descriptor.params.add(new GenericType(par));
|
|
pars = pars.substring(par.length());
|
|
}
|
|
|
|
String par = GenericType.getNextType(signature);
|
|
descriptor.ret = new GenericType(par);
|
|
signature = signature.substring(par.length());
|
|
|
|
if (signature.length() > 0) {
|
|
String[] exceptions = signature.split("\\^");
|
|
|
|
for (int i = 1; i < exceptions.length; i++) {
|
|
descriptor.exceptions.add(new GenericType(exceptions[i]));
|
|
}
|
|
}
|
|
|
|
return descriptor;
|
|
}
|
|
catch (RuntimeException e) {
|
|
DecompilerContext.getLogger().writeMessage("Invalid signature: " + original, IFernflowerLogger.Severity.WARN);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private static String parseFormalParameters(String signature, List<String> parameters, List<List<GenericType>> bounds) {
|
|
if (signature.charAt(0) != '<') {
|
|
return signature;
|
|
}
|
|
|
|
int counter = 1;
|
|
int index = 1;
|
|
|
|
loop:
|
|
while (index < signature.length()) {
|
|
switch (signature.charAt(index)) {
|
|
case '<':
|
|
counter++;
|
|
break;
|
|
case '>':
|
|
counter--;
|
|
if (counter == 0) {
|
|
break loop;
|
|
}
|
|
}
|
|
|
|
index++;
|
|
}
|
|
|
|
String value = signature.substring(1, index);
|
|
signature = signature.substring(index + 1);
|
|
|
|
while (value.length() > 0) {
|
|
int to = value.indexOf(":");
|
|
|
|
String param = value.substring(0, to);
|
|
value = value.substring(to + 1);
|
|
|
|
List<GenericType> lstBounds = new ArrayList<GenericType>();
|
|
|
|
while (true) {
|
|
if (value.charAt(0) == ':') {
|
|
// empty superclass, skip
|
|
value = value.substring(1);
|
|
}
|
|
|
|
String bound = GenericType.getNextType(value);
|
|
lstBounds.add(new GenericType(bound));
|
|
value = value.substring(bound.length());
|
|
|
|
|
|
if (value.length() == 0 || value.charAt(0) != ':') {
|
|
break;
|
|
}
|
|
else {
|
|
value = value.substring(1);
|
|
}
|
|
}
|
|
|
|
parameters.add(param);
|
|
bounds.add(lstBounds);
|
|
}
|
|
|
|
return signature;
|
|
}
|
|
|
|
public static String getGenericCastTypeName(GenericType type) {
|
|
String s = getTypeName(type);
|
|
int dim = type.arrayDim;
|
|
while (dim-- > 0) {
|
|
s += "[]";
|
|
}
|
|
return s;
|
|
}
|
|
|
|
private static String getTypeName(GenericType type) {
|
|
int tp = type.type;
|
|
if (tp <= CodeConstants.TYPE_BOOLEAN) {
|
|
return typeNames[tp];
|
|
}
|
|
else if (tp == CodeConstants.TYPE_VOID) {
|
|
return "void";
|
|
}
|
|
else if (tp == CodeConstants.TYPE_GENVAR) {
|
|
return type.value;
|
|
}
|
|
else if (tp == CodeConstants.TYPE_OBJECT) {
|
|
StringBuilder buffer = new StringBuilder();
|
|
buffer.append(DecompilerContext.getImportCollector().getShortName(buildJavaClassName(type)));
|
|
|
|
if (!type.getArguments().isEmpty()) {
|
|
buffer.append("<");
|
|
for (int i = 0; i < type.getArguments().size(); i++) {
|
|
if (i > 0) {
|
|
buffer.append(", ");
|
|
}
|
|
int wildcard = type.getWildcards().get(i);
|
|
if (wildcard != GenericType.WILDCARD_NO) {
|
|
buffer.append("?");
|
|
|
|
switch (wildcard) {
|
|
case GenericType.WILDCARD_EXTENDS:
|
|
buffer.append(" extends ");
|
|
break;
|
|
case GenericType.WILDCARD_SUPER:
|
|
buffer.append(" super ");
|
|
}
|
|
}
|
|
|
|
GenericType genPar = type.getArguments().get(i);
|
|
if (genPar != null) {
|
|
buffer.append(getGenericCastTypeName(genPar));
|
|
}
|
|
}
|
|
buffer.append(">");
|
|
}
|
|
|
|
return buffer.toString();
|
|
}
|
|
|
|
throw new RuntimeException("Invalid type: " + type);
|
|
}
|
|
|
|
private static String buildJavaClassName(GenericType type) {
|
|
String name = "";
|
|
for (GenericType tp : type.getEnclosingClasses()) {
|
|
name += tp.value + "$";
|
|
}
|
|
name += type.value;
|
|
|
|
String res = name.replace('/', '.');
|
|
|
|
if (res.contains("$")) {
|
|
StructClass cl = DecompilerContext.getStructContext().getClass(name);
|
|
if (cl == null || !cl.isOwn()) {
|
|
res = res.replace('$', '.');
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
}
|