Method* Class::_resolve_method(Global_Env* env, unsigned cp_index)
{
lock();
if(m_const_pool.is_entry_in_error(cp_index)) {
TRACE2("resolve.testing", "Constant pool entry " << cp_index << " already contains error.");
unlock();
return NULL;
}
#ifdef ORDER
if(m_const_pool.is_entry_resolved(cp_index, this)) {//ORDER
unlock();
return m_const_pool.get_ref_method(cp_index);
}
#else
if(m_const_pool.is_entry_resolved(cp_index)) {//ORDER
unlock();
return m_const_pool.get_ref_method(cp_index);
}
#endif
//
// constant pool entry hasn't been resolved yet
//
unsigned other_index;
other_index = m_const_pool.get_ref_class_index(cp_index);
unlock();
//
// check error condition from resolve class
//
Class* other_clss = _resolve_class(env, other_index);
if(!other_clss) {
if(m_const_pool.is_entry_in_error(other_index)) {
class_report_failure(this, cp_index,
m_const_pool.get_error_cause(other_index));
} else {
assert(exn_raised());
}
return NULL;
}
uint16 name_and_type_index = m_const_pool.get_ref_name_and_type_index(cp_index);
String* name = m_const_pool.get_name_and_type_name(name_and_type_index);
String* desc = m_const_pool.get_name_and_type_descriptor(name_and_type_index);
// CONSTANT_Methodref must refer to a class, not an interface, and
// CONSTANT_InterfaceMethodref must refer to an interface (vm spec 4.4.2)
if(m_const_pool.is_methodref(cp_index) && other_clss->is_interface()) {
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/IncompatibleClassChangeError",
other_clss->get_name()->bytes
<< " while resolving constant pool entry " << cp_index
<< " in class " << m_name->bytes);
return NULL;
}
if(m_const_pool.is_interfacemethodref(cp_index) && !other_clss->is_interface()) {
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/IncompatibleClassChangeError",
other_clss->get_name()->bytes
<< " while resolving constant pool entry " << cp_index
<< " in class " << m_name->bytes);
return NULL;
}
Method* method = class_lookup_method_recursive(other_clss, name, desc);
if(method == NULL) {
// NoSuchMethodError
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/NoSuchMethodError",
other_clss->get_name()->bytes << "." << name->bytes << desc->bytes
<< " while resolving constant pool entry at index " << cp_index
<< " in class " << m_name->bytes);
return NULL;
}
if(method->is_abstract() && !other_clss->is_abstract()) {
// AbstractMethodError
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/AbstractMethodError",
other_clss->get_name()->bytes << "." << name->bytes << desc->bytes
<< " while resolving constant pool entry at index " << cp_index
<< " in class " << m_name->bytes);
return NULL;
}
//
// check access permissions
//
if(!can_access_member(method)) {
// IllegalAccessError
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/IllegalAccessError",
other_clss->get_name()->bytes << "." << name->bytes << desc->bytes
<< " while resolving constant pool entry at index " << cp_index
<< " in class " << m_name->bytes);
return NULL;
}
lock();
m_const_pool.resolve_entry(cp_index, method);
unlock();
return method;
} //_resolve_method
Class* Class::resolve_declaring_class(Global_Env* env)
{
if(m_declaring_class_index == 0) return NULL;
return _resolve_class(env, m_declaring_class_index);
}
Field* Class::_resolve_field(Global_Env *env, unsigned cp_index)
{
lock();
if(m_const_pool.is_entry_in_error(cp_index)) {
TRACE2("resolve.testing", "Constant pool entry " << cp_index << " already contains error.");
unlock();
return NULL;
}
#ifdef ORDER
if(m_const_pool.is_entry_resolved(cp_index, this)) {//ORDER
unlock();
return m_const_pool.get_ref_field(cp_index);
}
#else
if(m_const_pool.is_entry_resolved(cp_index)) {
unlock();
return m_const_pool.get_ref_field(cp_index);
}
#endif
//
// constant pool entry hasn't been resolved yet
//
unsigned other_index = m_const_pool.get_ref_class_index(cp_index);
unlock();
//
// check error condition from resolve class
//
Class* other_clss = _resolve_class(env, other_index);
if(!other_clss) {
if(m_const_pool.is_entry_in_error(other_index)) {
class_report_failure(this, cp_index,
m_const_pool.get_error_cause(other_index));
} else {
assert(exn_raised());
}
return NULL;
}
uint16 name_and_type_index = m_const_pool.get_ref_name_and_type_index(cp_index);
String* name = m_const_pool.get_name_and_type_name(name_and_type_index);
String* desc = m_const_pool.get_name_and_type_descriptor(name_and_type_index);
Field* field = other_clss->lookup_field_recursive(name, desc);
if(field == NULL)
{
//
// NoSuchFieldError
//
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/NoSuchFieldError",
other_clss->get_name()->bytes << "." << name->bytes
<< " of type " << desc->bytes
<< " while resolving constant pool entry at index "
<< cp_index << " in class " << get_name()->bytes);
return NULL;
}
//
// check access permissions
//
if(!can_access_member(field))
{
//
// IllegalAccessError
//
CLASS_REPORT_FAILURE(this, cp_index, "java/lang/IllegalAccessError",
other_clss->get_name()->bytes << "." << name->bytes
<< " of type " << desc->bytes
<< " while resolving constant pool entry at index "
<< cp_index << " in class " << get_name()->bytes);
return NULL;
}
lock();
m_const_pool.resolve_entry(cp_index, field);
unlock();
return field;
} // Class::_resolve_field
