kaitai: adjustments and rearrangements for python2/3 compat

1 files changed, 951 insertions, 0 deletions

diff --git a/python/examples/kaitai/java_class.py b/python/examples/kaitai/java_class.py
new file mode 100644
index 00000000..e492e83f
--- /dev/null
+++ b/python/examples/kaitai/java_class.py
@@ -0,0 +1,951 @@
+# This is a generated file! Please edit source .ksy file and use kaitai-struct-compiler to rebuild
+
+from pkg_resources import parse_version
+from .kaitaistruct import __version__ as ks_version, KaitaiStruct, KaitaiStream, BytesIO
+import collections
+from enum import Enum
+
+
+if parse_version(ks_version) < parse_version('0.7'):
+    raise Exception("Incompatible Kaitai Struct Python API: 0.7 or later is required, but you have %s" % (ks_version))
+
+class JavaClass(KaitaiStruct):
+    """
+    .. seealso::
+       Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.1
+    """
+    SEQ_FIELDS = ["magic", "version_minor", "version_major", "constant_pool_count", "constant_pool", "access_flags", "this_class", "super_class", "interfaces_count", "interfaces", "fields_count", "fields", "methods_count", "methods", "attributes_count", "attributes"]
+    def __init__(self, _io, _parent=None, _root=None):
+        self._io = _io
+        self._parent = _parent
+        self._root = _root if _root else self
+        self._debug = collections.defaultdict(dict)
+
+    def _read(self):
+        self._debug['magic']['start'] = self._io.pos()
+        self.magic = self._io.ensure_fixed_contents(b"\xCA\xFE\xBA\xBE")
+        self._debug['magic']['end'] = self._io.pos()
+        self._debug['version_minor']['start'] = self._io.pos()
+        self.version_minor = self._io.read_u2be()
+        self._debug['version_minor']['end'] = self._io.pos()
+        self._debug['version_major']['start'] = self._io.pos()
+        self.version_major = self._io.read_u2be()
+        self._debug['version_major']['end'] = self._io.pos()
+        self._debug['constant_pool_count']['start'] = self._io.pos()
+        self.constant_pool_count = self._io.read_u2be()
+        self._debug['constant_pool_count']['end'] = self._io.pos()
+        self._debug['constant_pool']['start'] = self._io.pos()
+        self.constant_pool = [None] * ((self.constant_pool_count - 1))
+        for i in range((self.constant_pool_count - 1)):
+            if not 'arr' in self._debug['constant_pool']:
+                self._debug['constant_pool']['arr'] = []
+            self._debug['constant_pool']['arr'].append({'start': self._io.pos()})
+            _t_constant_pool = self._root.ConstantPoolEntry(self._io, self, self._root)
+            _t_constant_pool._read()
+            self.constant_pool[i] = _t_constant_pool
+            self._debug['constant_pool']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['constant_pool']['end'] = self._io.pos()
+        self._debug['access_flags']['start'] = self._io.pos()
+        self.access_flags = self._io.read_u2be()
+        self._debug['access_flags']['end'] = self._io.pos()
+        self._debug['this_class']['start'] = self._io.pos()
+        self.this_class = self._io.read_u2be()
+        self._debug['this_class']['end'] = self._io.pos()
+        self._debug['super_class']['start'] = self._io.pos()
+        self.super_class = self._io.read_u2be()
+        self._debug['super_class']['end'] = self._io.pos()
+        self._debug['interfaces_count']['start'] = self._io.pos()
+        self.interfaces_count = self._io.read_u2be()
+        self._debug['interfaces_count']['end'] = self._io.pos()
+        self._debug['interfaces']['start'] = self._io.pos()
+        self.interfaces = [None] * (self.interfaces_count)
+        for i in range(self.interfaces_count):
+            if not 'arr' in self._debug['interfaces']:
+                self._debug['interfaces']['arr'] = []
+            self._debug['interfaces']['arr'].append({'start': self._io.pos()})
+            self.interfaces[i] = self._io.read_u2be()
+            self._debug['interfaces']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['interfaces']['end'] = self._io.pos()
+        self._debug['fields_count']['start'] = self._io.pos()
+        self.fields_count = self._io.read_u2be()
+        self._debug['fields_count']['end'] = self._io.pos()
+        self._debug['fields']['start'] = self._io.pos()
+        self.fields = [None] * (self.fields_count)
+        for i in range(self.fields_count):
+            if not 'arr' in self._debug['fields']:
+                self._debug['fields']['arr'] = []
+            self._debug['fields']['arr'].append({'start': self._io.pos()})
+            _t_fields = self._root.FieldInfo(self._io, self, self._root)
+            _t_fields._read()
+            self.fields[i] = _t_fields
+            self._debug['fields']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['fields']['end'] = self._io.pos()
+        self._debug['methods_count']['start'] = self._io.pos()
+        self.methods_count = self._io.read_u2be()
+        self._debug['methods_count']['end'] = self._io.pos()
+        self._debug['methods']['start'] = self._io.pos()
+        self.methods = [None] * (self.methods_count)
+        for i in range(self.methods_count):
+            if not 'arr' in self._debug['methods']:
+                self._debug['methods']['arr'] = []
+            self._debug['methods']['arr'].append({'start': self._io.pos()})
+            _t_methods = self._root.MethodInfo(self._io, self, self._root)
+            _t_methods._read()
+            self.methods[i] = _t_methods
+            self._debug['methods']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['methods']['end'] = self._io.pos()
+        self._debug['attributes_count']['start'] = self._io.pos()
+        self.attributes_count = self._io.read_u2be()
+        self._debug['attributes_count']['end'] = self._io.pos()
+        self._debug['attributes']['start'] = self._io.pos()
+        self.attributes = [None] * (self.attributes_count)
+        for i in range(self.attributes_count):
+            if not 'arr' in self._debug['attributes']:
+                self._debug['attributes']['arr'] = []
+            self._debug['attributes']['arr'].append({'start': self._io.pos()})
+            _t_attributes = self._root.AttributeInfo(self._io, self, self._root)
+            _t_attributes._read()
+            self.attributes[i] = _t_attributes
+            self._debug['attributes']['arr'][i]['end'] = self._io.pos()
+
+        self._debug['attributes']['end'] = self._io.pos()
+
+    class FloatCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.5
+        """
+        SEQ_FIELDS = ["value"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['value']['start'] = self._io.pos()
+            self.value = self._io.read_f4be()
+            self._debug['value']['end'] = self._io.pos()
+
+
+    class AttributeInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7
+        """
+        SEQ_FIELDS = ["name_index", "attribute_length", "info"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['name_index']['start'] = self._io.pos()
+            self.name_index = self._io.read_u2be()
+            self._debug['name_index']['end'] = self._io.pos()
+            self._debug['attribute_length']['start'] = self._io.pos()
+            self.attribute_length = self._io.read_u4be()
+            self._debug['attribute_length']['end'] = self._io.pos()
+            self._debug['info']['start'] = self._io.pos()
+            _on = self.name_as_str
+            if _on == u"SourceFile":
+                self._raw_info = self._io.read_bytes(self.attribute_length)
+                io = KaitaiStream(BytesIO(self._raw_info))
+                self.info = self._root.AttributeInfo.AttrBodySourceFile(io, self, self._root)
+                self.info._read()
+            elif _on == u"LineNumberTable":
+                self._raw_info = self._io.read_bytes(self.attribute_length)
+                io = KaitaiStream(BytesIO(self._raw_info))
+                self.info = self._root.AttributeInfo.AttrBodyLineNumberTable(io, self, self._root)
+                self.info._read()
+            elif _on == u"Exceptions":
+                self._raw_info = self._io.read_bytes(self.attribute_length)
+                io = KaitaiStream(BytesIO(self._raw_info))
+                self.info = self._root.AttributeInfo.AttrBodyExceptions(io, self, self._root)
+                self.info._read()
+            elif _on == u"Code":
+                self._raw_info = self._io.read_bytes(self.attribute_length)
+                io = KaitaiStream(BytesIO(self._raw_info))
+                self.info = self._root.AttributeInfo.AttrBodyCode(io, self, self._root)
+                self.info._read()
+            else:
+                self.info = self._io.read_bytes(self.attribute_length)
+            self._debug['info']['end'] = self._io.pos()
+
+        class AttrBodyCode(KaitaiStruct):
+            """
+            .. seealso::
+               Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.3
+            """
+            SEQ_FIELDS = ["max_stack", "max_locals", "code_length", "code", "exception_table_length", "exception_table", "attributes_count", "attributes"]
+            def __init__(self, _io, _parent=None, _root=None):
+                self._io = _io
+                self._parent = _parent
+                self._root = _root if _root else self
+                self._debug = collections.defaultdict(dict)
+
+            def _read(self):
+                self._debug['max_stack']['start'] = self._io.pos()
+                self.max_stack = self._io.read_u2be()
+                self._debug['max_stack']['end'] = self._io.pos()
+                self._debug['max_locals']['start'] = self._io.pos()
+                self.max_locals = self._io.read_u2be()
+                self._debug['max_locals']['end'] = self._io.pos()
+                self._debug['code_length']['start'] = self._io.pos()
+                self.code_length = self._io.read_u4be()
+                self._debug['code_length']['end'] = self._io.pos()
+                self._debug['code']['start'] = self._io.pos()
+                self.code = self._io.read_bytes(self.code_length)
+                self._debug['code']['end'] = self._io.pos()
+                self._debug['exception_table_length']['start'] = self._io.pos()
+                self.exception_table_length = self._io.read_u2be()
+                self._debug['exception_table_length']['end'] = self._io.pos()
+                self._debug['exception_table']['start'] = self._io.pos()
+                self.exception_table = [None] * (self.exception_table_length)
+                for i in range(self.exception_table_length):
+                    if not 'arr' in self._debug['exception_table']:
+                        self._debug['exception_table']['arr'] = []
+                    self._debug['exception_table']['arr'].append({'start': self._io.pos()})
+                    _t_exception_table = self._root.AttributeInfo.AttrBodyCode.ExceptionEntry(self._io, self, self._root)
+                    _t_exception_table._read()
+                    self.exception_table[i] = _t_exception_table
+                    self._debug['exception_table']['arr'][i]['end'] = self._io.pos()
+
+                self._debug['exception_table']['end'] = self._io.pos()
+                self._debug['attributes_count']['start'] = self._io.pos()
+                self.attributes_count = self._io.read_u2be()
+                self._debug['attributes_count']['end'] = self._io.pos()
+                self._debug['attributes']['start'] = self._io.pos()
+                self.attributes = [None] * (self.attributes_count)
+                for i in range(self.attributes_count):
+                    if not 'arr' in self._debug['attributes']:
+                        self._debug['attributes']['arr'] = []
+                    self._debug['attributes']['arr'].append({'start': self._io.pos()})
+                    _t_attributes = self._root.AttributeInfo(self._io, self, self._root)
+                    _t_attributes._read()
+                    self.attributes[i] = _t_attributes
+                    self._debug['attributes']['arr'][i]['end'] = self._io.pos()
+
+                self._debug['attributes']['end'] = self._io.pos()
+
+            class ExceptionEntry(KaitaiStruct):
+                """
+                .. seealso::
+                   Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.3
+                """
+                SEQ_FIELDS = ["start_pc", "end_pc", "handler_pc", "catch_type"]
+                def __init__(self, _io, _parent=None, _root=None):
+                    self._io = _io
+                    self._parent = _parent
+                    self._root = _root if _root else self
+                    self._debug = collections.defaultdict(dict)
+
+                def _read(self):
+                    self._debug['start_pc']['start'] = self._io.pos()
+                    self.start_pc = self._io.read_u2be()
+                    self._debug['start_pc']['end'] = self._io.pos()
+                    self._debug['end_pc']['start'] = self._io.pos()
+                    self.end_pc = self._io.read_u2be()
+                    self._debug['end_pc']['end'] = self._io.pos()
+                    self._debug['handler_pc']['start'] = self._io.pos()
+                    self.handler_pc = self._io.read_u2be()
+                    self._debug['handler_pc']['end'] = self._io.pos()
+                    self._debug['catch_type']['start'] = self._io.pos()
+                    self.catch_type = self._io.read_u2be()
+                    self._debug['catch_type']['end'] = self._io.pos()
+
+                @property
+                def catch_exception(self):
+                    if hasattr(self, '_m_catch_exception'):
+                        return self._m_catch_exception if hasattr(self, '_m_catch_exception') else None
+
+                    if self.catch_type != 0:
+                        self._m_catch_exception = self._root.constant_pool[(self.catch_type - 1)]
+
+                    return self._m_catch_exception if hasattr(self, '_m_catch_exception') else None
+
+
+
+        class AttrBodyExceptions(KaitaiStruct):
+            """
+            .. seealso::
+               Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.5
+            """
+            SEQ_FIELDS = ["number_of_exceptions", "exceptions"]
+            def __init__(self, _io, _parent=None, _root=None):
+                self._io = _io
+                self._parent = _parent
+                self._root = _root if _root else self
+                self._debug = collections.defaultdict(dict)
+
+            def _read(self):
+                self._debug['number_of_exceptions']['start'] = self._io.pos()
+                self.number_of_exceptions = self._io.read_u2be()
+                self._debug['number_of_exceptions']['end'] = self._io.pos()
+                self._debug['exceptions']['start'] = self._io.pos()
+                self.exceptions = [None] * (self.number_of_exceptions)
+                for i in range(self.number_of_exceptions):
+                    if not 'arr' in self._debug['exceptions']:
+                        self._debug['exceptions']['arr'] = []
+                    self._debug['exceptions']['arr'].append({'start': self._io.pos()})
+                    _t_exceptions = self._root.AttributeInfo.AttrBodyExceptions.ExceptionTableEntry(self._io, self, self._root)
+                    _t_exceptions._read()
+                    self.exceptions[i] = _t_exceptions
+                    self._debug['exceptions']['arr'][i]['end'] = self._io.pos()
+
+                self._debug['exceptions']['end'] = self._io.pos()
+
+            class ExceptionTableEntry(KaitaiStruct):
+                SEQ_FIELDS = ["index"]
+                def __init__(self, _io, _parent=None, _root=None):
+                    self._io = _io
+                    self._parent = _parent
+                    self._root = _root if _root else self
+                    self._debug = collections.defaultdict(dict)
+
+                def _read(self):
+                    self._debug['index']['start'] = self._io.pos()
+                    self.index = self._io.read_u2be()
+                    self._debug['index']['end'] = self._io.pos()
+
+                @property
+                def as_info(self):
+                    if hasattr(self, '_m_as_info'):
+                        return self._m_as_info if hasattr(self, '_m_as_info') else None
+
+                    self._m_as_info = self._root.constant_pool[(self.index - 1)].cp_info
+                    return self._m_as_info if hasattr(self, '_m_as_info') else None
+
+                @property
+                def name_as_str(self):
+                    if hasattr(self, '_m_name_as_str'):
+                        return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+                    self._m_name_as_str = self.as_info.name_as_str
+                    return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+
+
+        class AttrBodySourceFile(KaitaiStruct):
+            """
+            .. seealso::
+               Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.10
+            """
+            SEQ_FIELDS = ["sourcefile_index"]
+            def __init__(self, _io, _parent=None, _root=None):
+                self._io = _io
+                self._parent = _parent
+                self._root = _root if _root else self
+                self._debug = collections.defaultdict(dict)
+
+            def _read(self):
+                self._debug['sourcefile_index']['start'] = self._io.pos()
+                self.sourcefile_index = self._io.read_u2be()
+                self._debug['sourcefile_index']['end'] = self._io.pos()
+
+            @property
+            def sourcefile_as_str(self):
+                if hasattr(self, '_m_sourcefile_as_str'):
+                    return self._m_sourcefile_as_str if hasattr(self, '_m_sourcefile_as_str') else None
+
+                self._m_sourcefile_as_str = self._root.constant_pool[(self.sourcefile_index - 1)].cp_info.value
+                return self._m_sourcefile_as_str if hasattr(self, '_m_sourcefile_as_str') else None
+
+
+        class AttrBodyLineNumberTable(KaitaiStruct):
+            """
+            .. seealso::
+               Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.7.12
+            """
+            SEQ_FIELDS = ["line_number_table_length", "line_number_table"]
+            def __init__(self, _io, _parent=None, _root=None):
+                self._io = _io
+                self._parent = _parent
+                self._root = _root if _root else self
+                self._debug = collections.defaultdict(dict)
+
+            def _read(self):
+                self._debug['line_number_table_length']['start'] = self._io.pos()
+                self.line_number_table_length = self._io.read_u2be()
+                self._debug['line_number_table_length']['end'] = self._io.pos()
+                self._debug['line_number_table']['start'] = self._io.pos()
+                self.line_number_table = [None] * (self.line_number_table_length)
+                for i in range(self.line_number_table_length):
+                    if not 'arr' in self._debug['line_number_table']:
+                        self._debug['line_number_table']['arr'] = []
+                    self._debug['line_number_table']['arr'].append({'start': self._io.pos()})
+                    _t_line_number_table = self._root.AttributeInfo.AttrBodyLineNumberTable.LineNumberTableEntry(self._io, self, self._root)
+                    _t_line_number_table._read()
+                    self.line_number_table[i] = _t_line_number_table
+                    self._debug['line_number_table']['arr'][i]['end'] = self._io.pos()
+
+                self._debug['line_number_table']['end'] = self._io.pos()
+
+            class LineNumberTableEntry(KaitaiStruct):
+                SEQ_FIELDS = ["start_pc", "line_number"]
+                def __init__(self, _io, _parent=None, _root=None):
+                    self._io = _io
+                    self._parent = _parent
+                    self._root = _root if _root else self
+                    self._debug = collections.defaultdict(dict)
+
+                def _read(self):
+                    self._debug['start_pc']['start'] = self._io.pos()
+                    self.start_pc = self._io.read_u2be()
+                    self._debug['start_pc']['end'] = self._io.pos()
+                    self._debug['line_number']['start'] = self._io.pos()
+                    self.line_number = self._io.read_u2be()
+                    self._debug['line_number']['end'] = self._io.pos()
+
+
+
+        @property
+        def name_as_str(self):
+            if hasattr(self, '_m_name_as_str'):
+                return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+            self._m_name_as_str = self._root.constant_pool[(self.name_index - 1)].cp_info.value
+            return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+
+    class MethodRefCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.2
+        """
+        SEQ_FIELDS = ["class_index", "name_and_type_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['class_index']['start'] = self._io.pos()
+            self.class_index = self._io.read_u2be()
+            self._debug['class_index']['end'] = self._io.pos()
+            self._debug['name_and_type_index']['start'] = self._io.pos()
+            self.name_and_type_index = self._io.read_u2be()
+            self._debug['name_and_type_index']['end'] = self._io.pos()
+
+        @property
+        def class_as_info(self):
+            if hasattr(self, '_m_class_as_info'):
+                return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+            self._m_class_as_info = self._root.constant_pool[(self.class_index - 1)].cp_info
+            return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+        @property
+        def name_and_type_as_info(self):
+            if hasattr(self, '_m_name_and_type_as_info'):
+                return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+            self._m_name_and_type_as_info = self._root.constant_pool[(self.name_and_type_index - 1)].cp_info
+            return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+
+    class FieldInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.5
+        """
+        SEQ_FIELDS = ["access_flags", "name_index", "descriptor_index", "attributes_count", "attributes"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['access_flags']['start'] = self._io.pos()
+            self.access_flags = self._io.read_u2be()
+            self._debug['access_flags']['end'] = self._io.pos()
+            self._debug['name_index']['start'] = self._io.pos()
+            self.name_index = self._io.read_u2be()
+            self._debug['name_index']['end'] = self._io.pos()
+            self._debug['descriptor_index']['start'] = self._io.pos()
+            self.descriptor_index = self._io.read_u2be()
+            self._debug['descriptor_index']['end'] = self._io.pos()
+            self._debug['attributes_count']['start'] = self._io.pos()
+            self.attributes_count = self._io.read_u2be()
+            self._debug['attributes_count']['end'] = self._io.pos()
+            self._debug['attributes']['start'] = self._io.pos()
+            self.attributes = [None] * (self.attributes_count)
+            for i in range(self.attributes_count):
+                if not 'arr' in self._debug['attributes']:
+                    self._debug['attributes']['arr'] = []
+                self._debug['attributes']['arr'].append({'start': self._io.pos()})
+                _t_attributes = self._root.AttributeInfo(self._io, self, self._root)
+                _t_attributes._read()
+                self.attributes[i] = _t_attributes
+                self._debug['attributes']['arr'][i]['end'] = self._io.pos()
+
+            self._debug['attributes']['end'] = self._io.pos()
+
+        @property
+        def name_as_str(self):
+            if hasattr(self, '_m_name_as_str'):
+                return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+            self._m_name_as_str = self._root.constant_pool[(self.name_index - 1)].cp_info.value
+            return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+
+    class DoubleCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.6
+        """
+        SEQ_FIELDS = ["value"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['value']['start'] = self._io.pos()
+            self.value = self._io.read_f8be()
+            self._debug['value']['end'] = self._io.pos()
+
+
+    class LongCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.5
+        """
+        SEQ_FIELDS = ["value"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['value']['start'] = self._io.pos()
+            self.value = self._io.read_u8be()
+            self._debug['value']['end'] = self._io.pos()
+
+
+    class InvokeDynamicCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.10
+        """
+        SEQ_FIELDS = ["bootstrap_method_attr_index", "name_and_type_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['bootstrap_method_attr_index']['start'] = self._io.pos()
+            self.bootstrap_method_attr_index = self._io.read_u2be()
+            self._debug['bootstrap_method_attr_index']['end'] = self._io.pos()
+            self._debug['name_and_type_index']['start'] = self._io.pos()
+            self.name_and_type_index = self._io.read_u2be()
+            self._debug['name_and_type_index']['end'] = self._io.pos()
+
+
+    class MethodHandleCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.8
+        """
+
+        class ReferenceKindEnum(Enum):
+            get_field = 1
+            get_static = 2
+            put_field = 3
+            put_static = 4
+            invoke_virtual = 5
+            invoke_static = 6
+            invoke_special = 7
+            new_invoke_special = 8
+            invoke_interface = 9
+        SEQ_FIELDS = ["reference_kind", "reference_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['reference_kind']['start'] = self._io.pos()
+            self.reference_kind = KaitaiStream.resolve_enum(self._root.MethodHandleCpInfo.ReferenceKindEnum, self._io.read_u1())
+            self._debug['reference_kind']['end'] = self._io.pos()
+            self._debug['reference_index']['start'] = self._io.pos()
+            self.reference_index = self._io.read_u2be()
+            self._debug['reference_index']['end'] = self._io.pos()
+
+
+    class NameAndTypeCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.6
+        """
+        SEQ_FIELDS = ["name_index", "descriptor_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['name_index']['start'] = self._io.pos()
+            self.name_index = self._io.read_u2be()
+            self._debug['name_index']['end'] = self._io.pos()
+            self._debug['descriptor_index']['start'] = self._io.pos()
+            self.descriptor_index = self._io.read_u2be()
+            self._debug['descriptor_index']['end'] = self._io.pos()
+
+        @property
+        def name_as_info(self):
+            if hasattr(self, '_m_name_as_info'):
+                return self._m_name_as_info if hasattr(self, '_m_name_as_info') else None
+
+            self._m_name_as_info = self._root.constant_pool[(self.name_index - 1)].cp_info
+            return self._m_name_as_info if hasattr(self, '_m_name_as_info') else None
+
+        @property
+        def name_as_str(self):
+            if hasattr(self, '_m_name_as_str'):
+                return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+            self._m_name_as_str = self.name_as_info.value
+            return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+        @property
+        def descriptor_as_info(self):
+            if hasattr(self, '_m_descriptor_as_info'):
+                return self._m_descriptor_as_info if hasattr(self, '_m_descriptor_as_info') else None
+
+            self._m_descriptor_as_info = self._root.constant_pool[(self.descriptor_index - 1)].cp_info
+            return self._m_descriptor_as_info if hasattr(self, '_m_descriptor_as_info') else None
+
+        @property
+        def descriptor_as_str(self):
+            if hasattr(self, '_m_descriptor_as_str'):
+                return self._m_descriptor_as_str if hasattr(self, '_m_descriptor_as_str') else None
+
+            self._m_descriptor_as_str = self.descriptor_as_info.value
+            return self._m_descriptor_as_str if hasattr(self, '_m_descriptor_as_str') else None
+
+
+    class Utf8CpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.7
+        """
+        SEQ_FIELDS = ["str_len", "value"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['str_len']['start'] = self._io.pos()
+            self.str_len = self._io.read_u2be()
+            self._debug['str_len']['end'] = self._io.pos()
+            self._debug['value']['start'] = self._io.pos()
+            self.value = (self._io.read_bytes(self.str_len)).decode(u"UTF-8")
+            self._debug['value']['end'] = self._io.pos()
+
+
+    class StringCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.3
+        """
+        SEQ_FIELDS = ["string_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['string_index']['start'] = self._io.pos()
+            self.string_index = self._io.read_u2be()
+            self._debug['string_index']['end'] = self._io.pos()
+
+
+    class MethodTypeCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.9
+        """
+        SEQ_FIELDS = ["descriptor_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['descriptor_index']['start'] = self._io.pos()
+            self.descriptor_index = self._io.read_u2be()
+            self._debug['descriptor_index']['end'] = self._io.pos()
+
+
+    class InterfaceMethodRefCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.2
+        """
+        SEQ_FIELDS = ["class_index", "name_and_type_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['class_index']['start'] = self._io.pos()
+            self.class_index = self._io.read_u2be()
+            self._debug['class_index']['end'] = self._io.pos()
+            self._debug['name_and_type_index']['start'] = self._io.pos()
+            self.name_and_type_index = self._io.read_u2be()
+            self._debug['name_and_type_index']['end'] = self._io.pos()
+
+        @property
+        def class_as_info(self):
+            if hasattr(self, '_m_class_as_info'):
+                return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+            self._m_class_as_info = self._root.constant_pool[(self.class_index - 1)].cp_info
+            return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+        @property
+        def name_and_type_as_info(self):
+            if hasattr(self, '_m_name_and_type_as_info'):
+                return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+            self._m_name_and_type_as_info = self._root.constant_pool[(self.name_and_type_index - 1)].cp_info
+            return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+
+    class ClassCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.1
+        """
+        SEQ_FIELDS = ["name_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['name_index']['start'] = self._io.pos()
+            self.name_index = self._io.read_u2be()
+            self._debug['name_index']['end'] = self._io.pos()
+
+        @property
+        def name_as_info(self):
+            if hasattr(self, '_m_name_as_info'):
+                return self._m_name_as_info if hasattr(self, '_m_name_as_info') else None
+
+            self._m_name_as_info = self._root.constant_pool[(self.name_index - 1)].cp_info
+            return self._m_name_as_info if hasattr(self, '_m_name_as_info') else None
+
+        @property
+        def name_as_str(self):
+            if hasattr(self, '_m_name_as_str'):
+                return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+            self._m_name_as_str = self.name_as_info.value
+            return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+
+    class ConstantPoolEntry(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4
+        """
+
+        class TagEnum(Enum):
+            utf8 = 1
+            integer = 3
+            float = 4
+            long = 5
+            double = 6
+            class_type = 7
+            string = 8
+            field_ref = 9
+            method_ref = 10
+            interface_method_ref = 11
+            name_and_type = 12
+            method_handle = 15
+            method_type = 16
+            invoke_dynamic = 18
+        SEQ_FIELDS = ["tag", "cp_info"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['tag']['start'] = self._io.pos()
+            self.tag = KaitaiStream.resolve_enum(self._root.ConstantPoolEntry.TagEnum, self._io.read_u1())
+            self._debug['tag']['end'] = self._io.pos()
+            self._debug['cp_info']['start'] = self._io.pos()
+            _on = self.tag
+            if _on == self._root.ConstantPoolEntry.TagEnum.interface_method_ref:
+                self.cp_info = self._root.InterfaceMethodRefCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.class_type:
+                self.cp_info = self._root.ClassCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.utf8:
+                self.cp_info = self._root.Utf8CpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.method_type:
+                self.cp_info = self._root.MethodTypeCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.integer:
+                self.cp_info = self._root.IntegerCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.string:
+                self.cp_info = self._root.StringCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.float:
+                self.cp_info = self._root.FloatCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.long:
+                self.cp_info = self._root.LongCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.method_ref:
+                self.cp_info = self._root.MethodRefCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.double:
+                self.cp_info = self._root.DoubleCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.invoke_dynamic:
+                self.cp_info = self._root.InvokeDynamicCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.field_ref:
+                self.cp_info = self._root.FieldRefCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.method_handle:
+                self.cp_info = self._root.MethodHandleCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            elif _on == self._root.ConstantPoolEntry.TagEnum.name_and_type:
+                self.cp_info = self._root.NameAndTypeCpInfo(self._io, self, self._root)
+                self.cp_info._read()
+            self._debug['cp_info']['end'] = self._io.pos()
+
+
+    class MethodInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.6
+        """
+        SEQ_FIELDS = ["access_flags", "name_index", "descriptor_index", "attributes_count", "attributes"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['access_flags']['start'] = self._io.pos()
+            self.access_flags = self._io.read_u2be()
+            self._debug['access_flags']['end'] = self._io.pos()
+            self._debug['name_index']['start'] = self._io.pos()
+            self.name_index = self._io.read_u2be()
+            self._debug['name_index']['end'] = self._io.pos()
+            self._debug['descriptor_index']['start'] = self._io.pos()
+            self.descriptor_index = self._io.read_u2be()
+            self._debug['descriptor_index']['end'] = self._io.pos()
+            self._debug['attributes_count']['start'] = self._io.pos()
+            self.attributes_count = self._io.read_u2be()
+            self._debug['attributes_count']['end'] = self._io.pos()
+            self._debug['attributes']['start'] = self._io.pos()
+            self.attributes = [None] * (self.attributes_count)
+            for i in range(self.attributes_count):
+                if not 'arr' in self._debug['attributes']:
+                    self._debug['attributes']['arr'] = []
+                self._debug['attributes']['arr'].append({'start': self._io.pos()})
+                _t_attributes = self._root.AttributeInfo(self._io, self, self._root)
+                _t_attributes._read()
+                self.attributes[i] = _t_attributes
+                self._debug['attributes']['arr'][i]['end'] = self._io.pos()
+
+            self._debug['attributes']['end'] = self._io.pos()
+
+        @property
+        def name_as_str(self):
+            if hasattr(self, '_m_name_as_str'):
+                return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+            self._m_name_as_str = self._root.constant_pool[(self.name_index - 1)].cp_info.value
+            return self._m_name_as_str if hasattr(self, '_m_name_as_str') else None
+
+
+    class IntegerCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.4
+        """
+        SEQ_FIELDS = ["value"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['value']['start'] = self._io.pos()
+            self.value = self._io.read_u4be()
+            self._debug['value']['end'] = self._io.pos()
+
+
+    class FieldRefCpInfo(KaitaiStruct):
+        """
+        .. seealso::
+           Source - https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-4.html#jvms-4.4.2
+        """
+        SEQ_FIELDS = ["class_index", "name_and_type_index"]
+        def __init__(self, _io, _parent=None, _root=None):
+            self._io = _io
+            self._parent = _parent
+            self._root = _root if _root else self
+            self._debug = collections.defaultdict(dict)
+
+        def _read(self):
+            self._debug['class_index']['start'] = self._io.pos()
+            self.class_index = self._io.read_u2be()
+            self._debug['class_index']['end'] = self._io.pos()
+            self._debug['name_and_type_index']['start'] = self._io.pos()
+            self.name_and_type_index = self._io.read_u2be()
+            self._debug['name_and_type_index']['end'] = self._io.pos()
+
+        @property
+        def class_as_info(self):
+            if hasattr(self, '_m_class_as_info'):
+                return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+            self._m_class_as_info = self._root.constant_pool[(self.class_index - 1)].cp_info
+            return self._m_class_as_info if hasattr(self, '_m_class_as_info') else None
+
+        @property
+        def name_and_type_as_info(self):
+            if hasattr(self, '_m_name_and_type_as_info'):
+                return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+            self._m_name_and_type_as_info = self._root.constant_pool[(self.name_and_type_index - 1)].cp_info
+            return self._m_name_and_type_as_info if hasattr(self, '_m_name_and_type_as_info') else None
+
+
+