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soot.coffi.Util Maven / Gradle / Ivy
/* Soot - a J*va Optimization Framework
* Copyright (C) 1997 Clark Verbrugge
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the Sable Research Group and others 1997-1999.
* See the 'credits' file distributed with Soot for the complete list of
* contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
*/
package soot.coffi;
import soot.jimple.*;
import java.util.*;
import java.io.*;
import soot.tagkit.*;
import soot.*;
public class Util
{
public Util( Singletons.Global g ) {}
public static Util v() { return G.v().soot_coffi_Util(); }
Map classNameToAbbreviation;
Set markedClasses;
LinkedList classesToResolve;
int activeOriginalIndex = -1;
cp_info[] activeConstantPool = null;
LocalVariableTable_attribute activeVariableTable;
LocalVariableTypeTable_attribute activeVariableTypeTable;
boolean useFaithfulNaming = false;
boolean isLocalStore = false; // global variable used
boolean isWideLocalStore = false;
public void setFaithfulNaming(boolean v)
{
useFaithfulNaming = v;
}
public void resolveFromClassFile(SootClass aClass, InputStream is, List references)
{
SootClass bclass = aClass;
String className = bclass.getName();
ClassFile coffiClass = new ClassFile(className);
// Load up class file, and retrieve bclass from class manager.
{
boolean success = coffiClass.loadClassFile(is);
if(!success)
{
if(!Scene.v().allowsPhantomRefs())
throw new RuntimeException("Could not load classfile: " + bclass.getName());
else {
G.v().out.println("Warning: " + className + " is a phantom class!");
bclass.setPhantom(true);
return;
}
}
CONSTANT_Class_info c = (CONSTANT_Class_info) coffiClass.constant_pool[coffiClass.this_class];
String name = ((CONSTANT_Utf8_info) (coffiClass.constant_pool[c.name_index])).convert();
name = name.replace('/', '.');
if( !name.equals( bclass.getName() ) ) {
throw new RuntimeException(
"Error: class "+name+" read in from a classfile in which "+bclass.getName()+" was expected." );
}
}
// Set modifier
bclass.setModifiers(coffiClass.access_flags & (~0x0020));
// don't want the ACC_SUPER flag, it is always supposed to be set anyways
// Set superclass
{
if(coffiClass.super_class != 0)
{
// This object is not java.lang.Object, so must have a super class
CONSTANT_Class_info c = (CONSTANT_Class_info) coffiClass.constant_pool[coffiClass.super_class];
String superName = ((CONSTANT_Utf8_info) (coffiClass.constant_pool[c.name_index])).convert();
superName = superName.replace('/', '.');
references.add(superName);
bclass.setSuperclass(SootResolver.v().makeClassRef(superName));
}
}
// Add interfaces to the bclass
{
for(int i = 0; i < coffiClass.interfaces_count; i++)
{
CONSTANT_Class_info c = (CONSTANT_Class_info) coffiClass.constant_pool[coffiClass.interfaces[i]];
String interfaceName =
((CONSTANT_Utf8_info) (coffiClass.constant_pool[c.name_index])).convert();
interfaceName = interfaceName.replace('/', '.');
references.add(interfaceName);
SootClass interfaceClass = SootResolver.v().makeClassRef(interfaceName);
bclass.addInterface(interfaceClass);
}
}
// Add every field to the bclass
for(int i = 0; i < coffiClass.fields_count; i++){
field_info fieldInfo = coffiClass.fields[i];
String fieldName = ((CONSTANT_Utf8_info)
(coffiClass.constant_pool[fieldInfo.name_index])).convert();
String fieldDescriptor = ((CONSTANT_Utf8_info)
(coffiClass.constant_pool[fieldInfo.descriptor_index])).convert();
int modifiers = fieldInfo.access_flags;
Type fieldType = jimpleTypeOfFieldDescriptor(fieldDescriptor);
SootField field = new SootField(fieldName, fieldType, modifiers);
bclass.addField(field);
references.add(fieldType);
// add initialization constant, if any
for(int j = 0; j < fieldInfo.attributes_count; j++) {
// add constant value attributes
if (fieldInfo.attributes[j] instanceof ConstantValue_attribute){
ConstantValue_attribute attr = (ConstantValue_attribute) fieldInfo.attributes[j];
cp_info cval = coffiClass.constant_pool[attr.constantvalue_index];
ConstantValueTag tag;
switch (cval.tag) {
case cp_info.CONSTANT_Integer:
tag = new IntegerConstantValueTag((int)((CONSTANT_Integer_info)cval).bytes);
break;
case cp_info.CONSTANT_Float:
//tag = new FloatConstantValueTag((int)((CONSTANT_Float_info)cval).bytes);
tag = new FloatConstantValueTag(((CONSTANT_Float_info)cval).convert());
break;
case cp_info.CONSTANT_Long:
{
CONSTANT_Long_info lcval = (CONSTANT_Long_info)cval;
tag = new LongConstantValueTag((lcval.high << 32) + lcval.low);
break;
}
case cp_info.CONSTANT_Double:
{
CONSTANT_Double_info dcval = (CONSTANT_Double_info)cval;
//tag = new DoubleConstantValueTag((dcval.high << 32) + dcval.low);
tag = new DoubleConstantValueTag(dcval.convert());
break;
}
case cp_info.CONSTANT_String:
{
CONSTANT_String_info scval = (CONSTANT_String_info)cval;
CONSTANT_Utf8_info ucval = (CONSTANT_Utf8_info)coffiClass.constant_pool[scval.string_index];
tag = new StringConstantValueTag(ucval.convert());
break;
}
default:
throw new RuntimeException("unexpected ConstantValue: " + cval);
}
field.addTag(tag);
}
// add synthetic tag
else if (fieldInfo.attributes[j] instanceof Synthetic_attribute){
field.addTag(new SyntheticTag());
}
// add deprecated tag
else if (fieldInfo.attributes[j] instanceof Deprecated_attribute){
field.addTag(new DeprecatedTag());
}
// add signature tag
else if (fieldInfo.attributes[j] instanceof Signature_attribute){
String generic_sig = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[((Signature_attribute)fieldInfo.attributes[j]).signature_index])).convert();
field.addTag(new SignatureTag(generic_sig));
}
else if (fieldInfo.attributes[j] instanceof RuntimeVisibleAnnotations_attribute || fieldInfo.attributes[j] instanceof RuntimeInvisibleAnnotations_attribute)
{
addAnnotationVisibilityAttribute(field, fieldInfo.attributes[j], coffiClass, references);
}
else if (fieldInfo.attributes[j] instanceof Generic_attribute)
{
Generic_attribute attr = (Generic_attribute) fieldInfo.attributes[j];
String name = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[attr.attribute_name])).convert();
field.addTag(new GenericAttribute(name, attr.info));
}
}
}
// Add every method to the bclass
for(int i = 0; i < coffiClass.methods_count; i++){
method_info methodInfo = coffiClass.methods[i];
if( (coffiClass.constant_pool[methodInfo.name_index]) == null) {
G.v().out.println("method index: " + methodInfo.toName(coffiClass.constant_pool));
throw new RuntimeException("method has no name");
}
String methodName = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[methodInfo.name_index])).convert();
String methodDescriptor = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[methodInfo.descriptor_index])).convert();
List parameterTypes;
Type returnType;
// Generate parameterTypes & returnType
{
Type[] types = jimpleTypesOfFieldOrMethodDescriptor(methodDescriptor);
parameterTypes = new ArrayList();
for(int j = 0; j < types.length - 1; j++){
references.add(types[j]);
parameterTypes.add(types[j]);
}
returnType = types[types.length - 1];
references.add(returnType);
}
int modifiers = methodInfo.access_flags;
SootMethod method;
method = new SootMethod(methodName,
parameterTypes, returnType, modifiers);
bclass.addMethod(method);
methodInfo.jmethod = method;
// add exceptions to method
{
for(int j = 0; j < methodInfo.attributes_count; j++){
if(methodInfo.attributes[j] instanceof Exception_attribute){
Exception_attribute exceptions = (Exception_attribute) methodInfo.attributes[j];
for(int k = 0; k < exceptions.number_of_exceptions; k++)
{
CONSTANT_Class_info c = (CONSTANT_Class_info) coffiClass.
constant_pool[exceptions.exception_index_table[k]];
String exceptionName = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[c.name_index])).convert();
exceptionName = exceptionName.replace('/', '.');
references.add(exceptionName);
method.addExceptionIfAbsent(SootResolver.v().makeClassRef(exceptionName));
}
}
else if (methodInfo.attributes[j] instanceof Synthetic_attribute) {
method.addTag(new SyntheticTag());
}
else if (methodInfo.attributes[j] instanceof Deprecated_attribute) {
method.addTag(new DeprecatedTag());
}
else if (methodInfo.attributes[j] instanceof Signature_attribute){
String generic_sig = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[((Signature_attribute)methodInfo.attributes[j]).signature_index])).convert();
method.addTag(new SignatureTag(generic_sig));
}
else if (methodInfo.attributes[j] instanceof RuntimeVisibleAnnotations_attribute || methodInfo.attributes[j] instanceof RuntimeInvisibleAnnotations_attribute)
{
addAnnotationVisibilityAttribute(method, methodInfo.attributes[j], coffiClass, references);
}
else if (methodInfo.attributes[j] instanceof RuntimeVisibleParameterAnnotations_attribute || methodInfo.attributes[j] instanceof RuntimeInvisibleParameterAnnotations_attribute)
{
addAnnotationVisibilityParameterAttribute(method, methodInfo.attributes[j], coffiClass, references);
}
else if (methodInfo.attributes[j] instanceof AnnotationDefault_attribute)
{
AnnotationDefault_attribute attr = (AnnotationDefault_attribute)methodInfo.attributes[j];
element_value [] input = new element_value[1];
input[0] = attr.default_value;
ArrayList list = createElementTags(1, coffiClass, input);
method.addTag(new AnnotationDefaultTag(list.get(0)));
}
else if (methodInfo.attributes[j] instanceof Generic_attribute)
{
Generic_attribute attr = (Generic_attribute) methodInfo.attributes[j];
String name = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[attr.attribute_name])).convert();
method.addTag(new GenericAttribute(name, attr.info));
}
}
}
// Go through the constant pool, forcing all mentioned classes to be resolved.
{
for(int k = 0; k < coffiClass.constant_pool_count; k++) {
if(coffiClass.constant_pool[k] instanceof CONSTANT_Class_info)
{
CONSTANT_Class_info c = (CONSTANT_Class_info) coffiClass.constant_pool[k];
String desc = ((CONSTANT_Utf8_info) (coffiClass.constant_pool[c.name_index])).convert();
String name = desc.replace('/', '.');
if(name.startsWith("["))
references.add(jimpleTypeOfFieldDescriptor(desc));
else
references.add(name);
}
if(coffiClass.constant_pool[k] instanceof CONSTANT_Fieldref_info
|| coffiClass.constant_pool[k] instanceof CONSTANT_Methodref_info
|| coffiClass.constant_pool[k] instanceof CONSTANT_InterfaceMethodref_info) {
Type[] types = jimpleTypesOfFieldOrMethodDescriptor(
cp_info.getTypeDescr(coffiClass.constant_pool,k));
for (Type element : types) {
references.add(element);
}
}
}
}
}
// Set coffi source of method
for(int i = 0; i < coffiClass.methods_count; i++)
{
method_info methodInfo = coffiClass.methods[i];
// methodInfo.jmethod.setSource(coffiClass, methodInfo);
methodInfo.jmethod.setSource(new CoffiMethodSource(coffiClass, methodInfo));
}
// Set "SourceFile" attribute tag
for(int i = 0; i < coffiClass.attributes_count; i++){
if(coffiClass.attributes[i] instanceof SourceFile_attribute){
SourceFile_attribute attr = (SourceFile_attribute)coffiClass.attributes[i];
String sourceFile = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[attr.sourcefile_index])).convert();
if( sourceFile.indexOf(' ') >= 0 ) {
G.v().out.println( "Warning: Class "+className+" has invalid SourceFile attribute (will be ignored)." );
} else {
bclass.addTag(new SourceFileTag( sourceFile ) );
}
}
// Set "InnerClass" attribute tag
else if(coffiClass.attributes[i] instanceof InnerClasses_attribute){
InnerClasses_attribute attr = (InnerClasses_attribute)coffiClass.attributes[i];
for (int j = 0; j < attr.inner_classes_length; j++)
{
inner_class_entry e = attr.inner_classes[j];
String inner = null;
String outer = null;
String name = null;
if (e.inner_class_index != 0)
inner = ((CONSTANT_Utf8_info)coffiClass.constant_pool[((CONSTANT_Class_info)coffiClass.constant_pool[e.inner_class_index]).name_index]).convert();
if (e.outer_class_index != 0)
outer = ((CONSTANT_Utf8_info)coffiClass.constant_pool[((CONSTANT_Class_info)coffiClass.constant_pool[e.outer_class_index]).name_index]).convert();
if (e.name_index != 0)
name = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[e.name_index])).convert();
bclass.addTag(new InnerClassTag(inner, outer, name, e.access_flags));
}
}
// set synthetic tags
else if(coffiClass.attributes[i] instanceof Synthetic_attribute){
bclass.addTag(new SyntheticTag());
}
// set deprectaed tags
else if(coffiClass.attributes[i] instanceof Deprecated_attribute){
bclass.addTag(new DeprecatedTag());
}
else if (coffiClass.attributes[i] instanceof Signature_attribute){
String generic_sig = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[((Signature_attribute)coffiClass.attributes[i]).signature_index])).convert();
bclass.addTag(new SignatureTag(generic_sig));
}
else if (coffiClass.attributes[i] instanceof EnclosingMethod_attribute){
EnclosingMethod_attribute attr = (EnclosingMethod_attribute)coffiClass.attributes[i];
String class_name = ((CONSTANT_Utf8_info)coffiClass.constant_pool[((CONSTANT_Class_info)coffiClass.constant_pool[ attr.class_index ]).name_index]).convert();
CONSTANT_NameAndType_info info = (CONSTANT_NameAndType_info)coffiClass.constant_pool[attr.method_index];
String method_name = "";
String method_sig = "";
if (info != null){
method_name = ((CONSTANT_Utf8_info)coffiClass.constant_pool[info.name_index]).convert();
method_sig = ((CONSTANT_Utf8_info)coffiClass.constant_pool[info.descriptor_index]).convert();
}
bclass.addTag(new EnclosingMethodTag(class_name, method_name, method_sig));
}
else if (coffiClass.attributes[i] instanceof RuntimeVisibleAnnotations_attribute || coffiClass.attributes[i] instanceof RuntimeInvisibleAnnotations_attribute)
{
addAnnotationVisibilityAttribute(bclass, coffiClass.attributes[i], coffiClass, references);
}
else if (coffiClass.attributes[i] instanceof Generic_attribute)
{
Generic_attribute attr = (Generic_attribute) coffiClass.attributes[i];
String name = ((CONSTANT_Utf8_info)(coffiClass.constant_pool[attr.attribute_name])).convert();
bclass.addTag(new GenericAttribute(name, attr.info));
}
}
}
Type jimpleReturnTypeOfMethodDescriptor(String descriptor)
{
Type[] types = jimpleTypesOfFieldOrMethodDescriptor(descriptor);
return types[types.length - 1];
}
private final ArrayList conversionTypes = new ArrayList();
/*
private Map cache = new HashMap();
public Type[] jimpleTypesOfFieldOrMethodDescriptor(String descriptor)
{
Type[] ret = (Type[]) cache.get(descriptor);
if( ret != null ) return ret;
conversionTypes.clear();
while(descriptor.length() != 0)
{
boolean isArray = false;
int numDimensions = 0;
Type baseType;
// Skip parenthesis
if(descriptor.startsWith("(") || descriptor.startsWith(")"))
{
descriptor = descriptor.substring(1);
continue;
}
// Handle array case
while(descriptor.startsWith("["))
{
isArray = true;
numDimensions++;
descriptor = descriptor.substring(1);
}
// Determine base type
if(descriptor.startsWith("B"))
{
baseType = ByteType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("C"))
{
baseType = CharType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("D"))
{
baseType = DoubleType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("F"))
{
baseType = FloatType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("I"))
{
baseType = IntType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("J"))
{
baseType = LongType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("L"))
{
int index = descriptor.indexOf(';');
if(index == -1)
throw new RuntimeException("Class reference has no ending ;");
String className = descriptor.substring(1, index);
baseType = RefType.v(className.replace('/', '.'));
descriptor = descriptor.substring(index + 1);
}
else if(descriptor.startsWith("S"))
{
baseType = ShortType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("Z"))
{
baseType = BooleanType.v();
descriptor = descriptor.substring(1);
}
else if(descriptor.startsWith("V"))
{
baseType = VoidType.v();
descriptor = descriptor.substring(1);
}
else
throw new RuntimeException("Unknown field type!");
Type t;
// Determine type
if(isArray)
t = ArrayType.v(baseType, numDimensions);
else
t = baseType;
conversionTypes.add(t);
}
ret = (Type[]) conversionTypes.toArray(new Type[0]);
cache.put(descriptor, ret);
return ret;
}
*/
private final Map cache = new HashMap();
public Type[] jimpleTypesOfFieldOrMethodDescriptor(String descriptor)
{
Type[] ret = cache.get(descriptor);
if( ret != null ) return ret;
char[] d = descriptor.toCharArray();
int p = 0;
conversionTypes.clear();
outer:
while(p= d.length )
throw new RuntimeException("Class reference has no ending ;");
String className = new String(d, p+1, index - p - 1);
baseType = RefType.v(className);
p = index+1;
break swtch;
case 'S':
baseType = ShortType.v();
p++;
break swtch;
case 'Z':
baseType = BooleanType.v();
p++;
break swtch;
case 'V':
baseType = VoidType.v();
p++;
break swtch;
default:
throw new RuntimeException("Unknown field type!");
}
}
if( baseType == null ) continue;
// Determine type
Type t;
if(isArray)
t = ArrayType.v(baseType, numDimensions);
else
t = baseType;
conversionTypes.add(t);
}
ret = conversionTypes.toArray(new Type[0]);
cache.put(descriptor, ret);
return ret;
}
public Type jimpleTypeOfFieldDescriptor(String descriptor)
{
boolean isArray = false;
int numDimensions = 0;
Type baseType;
// Handle array case
while(descriptor.startsWith("["))
{
isArray = true;
numDimensions++;
descriptor = descriptor.substring(1);
}
// Determine base type
if(descriptor.equals("B"))
baseType = ByteType.v();
else if(descriptor.equals("C"))
baseType = CharType.v();
else if(descriptor.equals("D"))
baseType = DoubleType.v();
else if(descriptor.equals("F"))
baseType = FloatType.v();
else if(descriptor.equals("I"))
baseType = IntType.v();
else if(descriptor.equals("J"))
baseType = LongType.v();
else if(descriptor.equals("V"))
baseType = VoidType.v();
else if(descriptor.startsWith("L"))
{
if(!descriptor.endsWith(";"))
throw new RuntimeException("Class reference does not end with ;");
String className = descriptor.substring(1, descriptor.length() - 1);
baseType = RefType.v(className.replace('/', '.'));
}
else if(descriptor.equals("S"))
baseType = ShortType.v();
else if(descriptor.equals("Z"))
baseType = BooleanType.v();
else
throw new RuntimeException("Unknown field type: " + descriptor);
// Return type
if(isArray)
return ArrayType.v(baseType, numDimensions);
else
return baseType;
}
int nextEasyNameIndex;
void resetEasyNames()
{
nextEasyNameIndex = 0;
}
String getNextEasyName()
{
final String[] easyNames =
{"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"};
int justifiedIndex = nextEasyNameIndex++;
if(justifiedIndex >= easyNames.length)
return "local" + (justifiedIndex - easyNames.length);
else
return easyNames[justifiedIndex];
}
void setClassNameToAbbreviation(Map map)
{
classNameToAbbreviation = map;
}
Local getLocalForStackOp(JimpleBody listBody, TypeStack typeStack,
int index)
{
if(typeStack.get(index).equals(Double2ndHalfType.v()) ||
typeStack.get(index).equals(Long2ndHalfType.v()))
{
index--;
}
return getLocalCreatingIfNecessary(listBody, "$stack" + index, UnknownType.v());
}
String getAbbreviationOfClassName(String className)
{
StringBuffer buffer = new StringBuffer(new Character(className.charAt(0)).toString());
int periodIndex = 0;
for(;;)
{
periodIndex = className.indexOf('.', periodIndex + 1);
if(periodIndex == -1)
break;
buffer.append(Character.toLowerCase(className.charAt(periodIndex + 1)));
}
return buffer.toString();
}
String getNormalizedClassName(String className)
{
className = className.replace('/', '.');
if(className.endsWith(";"))
className = className.substring(0, className.length() - 1);
// Handle array case
{
int numDimensions = 0;
while(className.startsWith("["))
{
numDimensions++;
className = className.substring(1, className.length());
className = className + "[]";
}
if(numDimensions != 0)
{
if(!className.startsWith("L"))
throw new RuntimeException("For some reason an array reference does not start with L");
className = className.substring(1, className.length());
}
}
return className;
}
public Local getLocal(Body b, String name)
throws soot.jimple.NoSuchLocalException
{
Iterator localIt = b.getLocals().iterator();
while(localIt.hasNext())
{
Local local = (Local) localIt.next();
if(local.getName().equals(name))
return local;
}
throw new soot.jimple.NoSuchLocalException();
}
public boolean declaresLocal(Body b, String localName)
{
Iterator localIt = b.getLocals().iterator();
while(localIt.hasNext())
{
Local local = (Local) localIt.next();
if(local.getName().equals(localName))
return true;
}
return false;
}
Local
getLocalCreatingIfNecessary(JimpleBody listBody, String name, Type type)
{
if(declaresLocal(listBody, name))
{
return getLocal(listBody, name);
}
else {
Local l = Jimple.v().newLocal(name, type);
listBody.getLocals().add(l);
return l;
}
}
Local getLocalForIndex(JimpleBody listBody, int index)
{
String name = null;
String debug_type = null;
boolean assignedName = false;
if(useFaithfulNaming && activeVariableTable != null)
{
if(activeOriginalIndex != -1)
{
// Feng asks: why this is necessary? it does wrong thing
// for searching local variable names.
// It is going to be verified with plam.
if(isLocalStore)
activeOriginalIndex++;
if(isWideLocalStore)
activeOriginalIndex++;
name = activeVariableTable.getLocalVariableName(activeConstantPool, index, activeOriginalIndex);
if (activeVariableTypeTable != null){
debug_type = activeVariableTypeTable.getLocalVariableType(activeConstantPool, index, activeOriginalIndex);
if (debug_type != null){
}
}
if(name != null)
assignedName = true;
}
}
if(!assignedName)
name = "l" + index;
if(declaresLocal(listBody, name))
return getLocal(listBody, name);
else {
Local l = Jimple.v().newLocal(name,
UnknownType.v());
l.setIndex(index); // RoboVM note: Added
listBody.getLocals().add(l);
/*if (debug_type != null){
l.addTag(new DebugTypeTag(debug_type));
} */
return l;
}
}
/*
void setLocalType(Local local, List locals,
int localIndex, Type type)
{
if(local.getType().equals(UnknownType.v()) ||
local.getType().equals(type))
{
local.setType(type);
if(local.getType().equals(DoubleType.v()) ||
local.getType().equals(LongType.v()))
{
// This means the next local becomes voided, since these types occupy two
// words.
Local secondHalf = (Local) locals.get(localIndex + 1);
secondHalf.setType(VoidType.v());
}
return;
}
if(type.equals(IntType.v()))
{
if(local.getType().equals(BooleanType.v()) ||
local.getType().equals(CharType.v()) ||
local.getType().equals(ShortType.v()) ||
local.getType().equals(ByteType.v()))
{
// Even though it's not the same, it's ok, because booleans, chars, shorts, and
// bytes are all sort of treated like integers by the JVM.
return;
}
}
throw new RuntimeException("required and actual types do not match: " + type.toString() +
" with " + local.getType().toString());
} */
/** Verifies the prospective name for validity as a Jimple name.
* In particular, first-char is alpha | _ | $, subsequent-chars
* are alphanum | _ | $.
*
* We could use isJavaIdentifier, except that Jimple's grammar
* doesn't support all of those, just ASCII.
*
* I'd put this in soot.Local, but that's an interface.
*
* @author Patrick Lam
*/
boolean isValidJimpleName(String prospectiveName) {
if(prospectiveName == null) return false;
for (int i = 0; i < prospectiveName.length(); i++) {
char c = prospectiveName.charAt(i);
if (i == 0 && c >= '0' && c <= '9')
return false;
if (!((c >= '0' && c <= '9') ||
(c >= 'a' && c <= 'z') ||
(c >= 'A' && c <= 'Z') ||
(c == '_' || c == '$')))
return false;
}
return true;
}
private void addAnnotationVisibilityAttribute(Host host, attribute_info attribute, ClassFile coffiClass, List references){
VisibilityAnnotationTag tag;
if (attribute instanceof RuntimeVisibleAnnotations_attribute){
tag = new VisibilityAnnotationTag(AnnotationConstants.RUNTIME_VISIBLE);
RuntimeVisibleAnnotations_attribute attr = (RuntimeVisibleAnnotations_attribute)attribute;
addAnnotations(attr.number_of_annotations, attr.annotations, coffiClass, tag, references);
}
else {
tag = new VisibilityAnnotationTag(AnnotationConstants.RUNTIME_INVISIBLE);
RuntimeInvisibleAnnotations_attribute attr = (RuntimeInvisibleAnnotations_attribute)attribute;
addAnnotations(attr.number_of_annotations, attr.annotations, coffiClass, tag, references);
}
host.addTag(tag);
}
private void addAnnotationVisibilityParameterAttribute(Host host, attribute_info attribute, ClassFile coffiClass, List references){
VisibilityParameterAnnotationTag tag;
if (attribute instanceof RuntimeVisibleParameterAnnotations_attribute){
RuntimeVisibleParameterAnnotations_attribute attr = (RuntimeVisibleParameterAnnotations_attribute)attribute;
tag = new VisibilityParameterAnnotationTag(attr.num_parameters, AnnotationConstants.RUNTIME_VISIBLE);
for (int i = 0; i < attr.num_parameters; i++){
parameter_annotation pAnnot = attr.parameter_annotations[i];
VisibilityAnnotationTag vTag = new VisibilityAnnotationTag(AnnotationConstants.RUNTIME_VISIBLE);
addAnnotations(pAnnot.num_annotations, pAnnot.annotations, coffiClass, vTag, references);
tag.addVisibilityAnnotation(vTag);
}
}
else {
RuntimeInvisibleParameterAnnotations_attribute attr = (RuntimeInvisibleParameterAnnotations_attribute)attribute;
tag = new VisibilityParameterAnnotationTag(attr.num_parameters, AnnotationConstants.RUNTIME_INVISIBLE);
for (int i = 0; i < attr.num_parameters; i++){
parameter_annotation pAnnot = attr.parameter_annotations[i];
VisibilityAnnotationTag vTag = new VisibilityAnnotationTag(AnnotationConstants.RUNTIME_INVISIBLE);
addAnnotations(pAnnot.num_annotations, pAnnot.annotations, coffiClass, vTag, references);
tag.addVisibilityAnnotation(vTag);
}
}
host.addTag(tag);
}
private void addAnnotations(int numAnnots, annotation [] annotations, ClassFile coffiClass, VisibilityAnnotationTag tag, List references){
for (int i = 0; i < numAnnots; i++){
annotation annot = annotations[i];
String annotType = ((CONSTANT_Utf8_info)coffiClass.constant_pool[annot.type_index]).convert();
String ref = annotType.substring(1, annotType.length()-1);
ref = ref.replace('/', '.');
references.add(ref);
int numElems = annot.num_element_value_pairs;
AnnotationTag annotTag = new AnnotationTag(annotType, numElems);
annotTag.setElems(createElementTags(numElems, coffiClass, annot.element_value_pairs));
tag.addAnnotation(annotTag);
}
}
private ArrayList createElementTags(int count, ClassFile coffiClass, element_value [] elems){
ArrayList list = new ArrayList();
for (int j = 0; j < count; j++){
element_value ev = elems[j];
char kind = ev.tag;
String elemName = "default";
if (ev.name_index != 0){
elemName = ((CONSTANT_Utf8_info)coffiClass.constant_pool[ev.name_index]).convert();
}
if (kind == 'B' || kind == 'C' || kind == 'I' || kind == 'S' || kind == 'Z' || kind == 'D' || kind == 'F' || kind == 'J' || kind == 's'){
constant_element_value cev = (constant_element_value)ev;
if (kind == 'B' || kind == 'C' || kind == 'I' || kind == 'S' || kind == 'Z'){
cp_info cval = coffiClass.constant_pool[cev.constant_value_index];
int constant_val = (int)((CONSTANT_Integer_info)cval).bytes;
AnnotationIntElem elem = new AnnotationIntElem(constant_val, kind, elemName);
list.add(elem);
}
else if (kind == 'D'){
cp_info cval = coffiClass.constant_pool[cev.constant_value_index];
double constant_val = ((CONSTANT_Double_info)cval).convert();
AnnotationDoubleElem elem = new AnnotationDoubleElem(constant_val, kind, elemName);
list.add(elem);
}
else if (kind == 'F'){
cp_info cval = coffiClass.constant_pool[cev.constant_value_index];
float constant_val = ((CONSTANT_Float_info)cval).convert();
AnnotationFloatElem elem = new AnnotationFloatElem(constant_val, kind, elemName);
list.add(elem);
}
else if (kind == 'J'){
cp_info cval = coffiClass.constant_pool[cev.constant_value_index];
CONSTANT_Long_info lcval = (CONSTANT_Long_info)cval;
long constant_val = (lcval.high << 32) + lcval.low;
AnnotationLongElem elem = new AnnotationLongElem(constant_val, kind, elemName);
list.add(elem);
}
else if (kind == 's'){
cp_info cval = coffiClass.constant_pool[cev.constant_value_index];
String constant_val = ((CONSTANT_Utf8_info)cval).convert();
AnnotationStringElem elem = new AnnotationStringElem(constant_val, kind, elemName);
list.add(elem);
}
}
else if (kind == 'e'){
enum_constant_element_value ecev = (enum_constant_element_value)ev;
cp_info type_val = coffiClass.constant_pool[ecev.type_name_index];
String type_name = ((CONSTANT_Utf8_info)type_val).convert();
cp_info name_val = coffiClass.constant_pool[ecev.constant_name_index];
String constant_name = ((CONSTANT_Utf8_info)name_val).convert();
AnnotationEnumElem elem = new AnnotationEnumElem(type_name, constant_name, kind, elemName);
list.add(elem);
}
else if (kind == 'c'){
class_element_value cev = (class_element_value)ev;
cp_info cval = coffiClass.constant_pool[cev.class_info_index];
CONSTANT_Utf8_info sval = (CONSTANT_Utf8_info)cval;
String desc = sval.convert();
AnnotationClassElem elem = new AnnotationClassElem(desc, kind, elemName);
list.add(elem);
}
else if (kind == '['){
array_element_value aev = (array_element_value)ev;
int num_vals = aev.num_values;
ArrayList elemVals = createElementTags(num_vals, coffiClass, aev.values);
AnnotationArrayElem elem = new AnnotationArrayElem(elemVals, kind, elemName);
list.add(elem);
}
else if (kind == '@'){
annotation_element_value aev = (annotation_element_value)ev;
annotation annot = aev.annotation_value;
String annotType = ((CONSTANT_Utf8_info)coffiClass.constant_pool[annot.type_index]).convert();
int numElems = annot.num_element_value_pairs;
AnnotationTag annotTag = new AnnotationTag(annotType, numElems);
annotTag.setElems(createElementTags(numElems, coffiClass, annot.element_value_pairs));
AnnotationAnnotationElem elem = new AnnotationAnnotationElem(annotTag, kind, elemName);
list.add(elem);
}
}
return list;
}
}
