UserClassArray* JnjvmClassLoader::constructArray(const UTF8* name) {
ClassArray* res = (ClassArray*)lookupClass(name);
if (res) return res;
UserCommonClass* cl = loadBaseClass(name, 1, name->size - 1);
assert(cl && "no base class for an array");
JnjvmClassLoader* ld = cl->classLoader;
res = ld->constructArray(name, cl);
ensureCached(res);
return res;
}
JavaObject* JavaThread::getNonNullClassLoader() {
JavaObject* obj = 0;
llvm_gcroot(obj, 0);
mvm::StackWalker Walker(this);
while (mvm::MethodInfo* MI = Walker.get()) {
if (MI->MethodType == 1) {
JavaMethod* meth = (JavaMethod*)MI->getMetaInfo();
JnjvmClassLoader* loader = meth->classDef->classLoader;
obj = loader->getJavaClassLoader();
if (obj) return obj;
}
++Walker;
}
return 0;
}
// Throws if the class can not be resolved.
extern "C" JavaVirtualTable* j3GetArrayClass(UserClass* caller,
uint32 index,
JavaVirtualTable** VT) {
JavaVirtualTable* res = 0;
assert(VT && "Incorrect call to j3GetArrayClass");
UserConstantPool* ctpInfo = caller->getConstantPool();
UserCommonClass* cl = ctpInfo->loadClass(index);
JnjvmClassLoader* JCL = cl->classLoader;
if (cl->asClass()) cl->asClass()->resolveClass();
const UTF8* arrayName = JCL->constructArrayName(1, cl->getName());
res = JCL->constructArray(arrayName)->virtualVT;
*VT = res;
return res;
}
UserClassArray* JnjvmClassLoader::constructArray(const UTF8* name) {
ClassArray* res = (ClassArray*)lookupClass(name);
if (res) return res;
UserCommonClass* cl = loadBaseClass(name, 1, name->size - 1);
assert(cl && "no base class for an array");
JnjvmClassLoader* ld = cl->classLoader;
res = ld->constructArray(name, cl);
if (res && res->classLoader != this) {
classes->lock.lock();
ClassMap::iterator End = classes->map.end();
ClassMap::iterator I = classes->map.find(res->name);
if (I == End)
classes->map.insert(std::make_pair(res->name, res));
classes->lock.unlock();
}
return res;
}
UserCommonClass* JnjvmClassLoader::loadBaseClass(const UTF8* name,
uint32 start, uint32 len) {
if (name->elements[start] == I_TAB) {
UserCommonClass* baseClass = loadBaseClass(name, start + 1, len - 1);
JnjvmClassLoader* loader = baseClass->classLoader;
const UTF8* arrayName = name->extract(loader->hashUTF8, start, start + len);
return loader->constructArray(arrayName, baseClass);
} else if (name->elements[start] == I_REF) {
const UTF8* componentName = name->extract(hashUTF8,
start + 1, start + len - 1);
UserCommonClass* cl = loadName(componentName, false, true, NULL);
return cl;
} else {
Classpath* upcalls = bootstrapLoader->upcalls;
UserClassPrimitive* prim =
UserClassPrimitive::byteIdToPrimitive(name->elements[start], upcalls);
assert(prim && "No primitive found");
return prim;
}
}
