Bring JS version of eos.core.objects up to date with Python

.gitignore

@@ -1,5 +1,6 @@
 /.coverage
 /.python-version
 /htmlcov
+/venv
 __javascript__
 __pycache__

build_js.sh

@@ -15,13 +15,19 @@
 #   You should have received a copy of the GNU Affero General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-transcrypt -b -n eos.js.py
+set +e
 
-# Javascript identifiers cannot contain dots
-perl -0777 -pi -e 's/eos.js/eosjs/g' eos/__javascript__/eos.js.js
+FLAGS=-k
 
-# __pragma__ sometimes stops working???
-perl -0777 -pi -e "s/__pragma__ \('.*?'\)//gs" eos/__javascript__/eos.js.js
+for f in eos.js eos.js_tests; do
+	transcrypt -b -n $FLAGS $f.py
 	
-# Transcrypt by default suppresses stack traces for some reason??
-perl -0777 -pi -e "s/__except0__.__cause__ = null;//g" eos/__javascript__/eos.js.js
+	# Javascript identifiers cannot contain dots
+	perl -0777 -pi -e 's/eos.js/eosjs/g' eos/__javascript__/$f.js
+	
+	# __pragma__ sometimes stops working???
+	perl -0777 -pi -e "s/__pragma__ \('.*?'\)//gs" eos/__javascript__/$f.js
+	
+	# Transcrypt by default suppresses stack traces for some reason??
+	perl -0777 -pi -e "s/__except0__.__cause__ = null;//g" eos/__javascript__/$f.js
+done

eos/core/objects/js.py

@@ -14,45 +14,166 @@
 #   You should have received a copy of the GNU Affero General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# Fields
+# ======
+
 class Field:
 	def __init__(self, *args, **kwargs):
-		if 'default' in kwargs:
-			self.required = False
-			self.default = kwargs['default']
-		else:
-			self.required = True
-			self.default = None
+		self.default = kwargs.get('default', None)
+		self.hashed = kwargs.get('hashed', True)
 
-StringField = Field
+class PrimitiveField(Field):
+	def serialise(self, value):
+		return value
+	
+	def deserialise(self, value):
+		return value
+
+DictField = PrimitiveField
+IntField = PrimitiveField
+ListField = PrimitiveField
+StringField = PrimitiveField
+UUIDField = PrimitiveField # Different to Python
+
+class EmbeddedObjectField(Field):
+	def __init__(self, object_type=None, *args, **kwargs):
+		super().__init__(*args, **kwargs)
+		self.object_type = object_type
+	
+	def serialise(self, value):
+		return EosObject.serialise_and_wrap(value, self.object_type)
+	
+	def deserialise(self, value):
+		return EosObject.deserialise_and_unwrap(value, self.object_type)
+
+class ListField(Field):
+	def __init__(self, element_field=None, *args, **kwargs):
+		super().__init__(default=EosList, *args, **kwargs)
+		self.element_field = element_field
+	
+	def serialise(self, value):
+		return [self.element_field.serialise(x) for x in value]
+	
+	def deserialise(self, value):
+		return [self.element_field.deserialise(x) for x in value]
+
+class EmbeddedObjectListField(Field):
+	def __init__(self, object_type=None, *args, **kwargs):
+		super().__init__(default=EosList, *args, **kwargs)
+		self.object_type = object_type
+	
+	def serialise(self, value):
+		return [EosObject.serialise_and_wrap(x, self.object_type) for x in value]
+	
+	def deserialise(self, value):
+		return [EosObject.deserialise_and_unwrap(x, self.object_type) for x in value]
+
+# Objects
+# =======
 
 class EosObjectType(type):
-	def before_new(meta, name, bases, attrs):
-		# Process fields
-		fields = {}
-		for attr, val in dict(attrs).items():
-			if isinstance(val, Field):
-				fields[attr] = val
-				attrs[attr] = val.to_python()
-		attrs['_fields'] = fields
-		
-		return meta, name, bases, attrs
-	
 	def __new__(meta, name, bases, attrs):
-		meta, name, bases, attrs = meta.before_new(meta, name, bases, attrs)
-		#return super().__new__(meta, name, bases, attrs)
-		return type.__new__(meta, name, bases, attrs)
+		cls = type.__new__(meta, name, bases, attrs)
+		cls._name = cls.__module__ + '.' + cls.__qualname__
+		if name != 'EosObject':
+			EosObject.objects[cls._name] = cls
+		return cls
 
-class EosObject():
+class EosObject(metaclass=EosObjectType):
+	objects = {}
+	
+	def __init__(self):
+		self._instance = (None, None)
+		self._inited = False
+	
+	def post_init(self):
+		self._inited = True
+	
+	def recurse_parents(self, cls):
+		if isinstance(self, cls):
+			return self
+		if self._instance[0]:
+			return self._instance[0].recurse_parents(cls)
+		return None
+	
+	@staticmethod
+	def serialise_and_wrap(value, object_type=None):
+		if object_type:
+			return value.serialise()
+		return {'type': value._name, 'value': value.serialise()}
+	
+	@staticmethod
+	def deserialise_and_unwrap(value, object_type=None):
+		if object_type:
+			return object_type.deserialise(value)
+		return EosObject.objects[value['type']].deserialise(value['value'])
+
+class EosList(EosObject, list):
+	def append(self, value):
+		if isinstance(value, EosObject):
+			value._instance = (self, len(self))
+			if not value._inited:
+				value.post_init()
+		return super().append(value)
+
+class DocumentObjectType(EosObjectType):
+	def __new__(meta, name, bases, attrs):
+		cls = EosObjectType.__new__(meta, name, bases, attrs)
+		
+		# Process fields
+		fields = Object.create(cls._fields) if hasattr(cls, '_fields') else {} # Different to Python: TNYI dict.copy not implemented
+		for attr in list(dir(cls)):
+			val = getattr(cls, attr)
+			if isinstance(val, Field):
+				val._instance = (cls, name)
+				fields[attr] = val
+				delattr(cls, attr)
+		cls._fields = fields
+		
+		# Make properties
+		def make_property(name, field):
+			def field_getter(self):
+				return self._field_values[name]
+			def field_setter(self, value):
+				if isinstance(value, EosObject):
+					value._instance = (self, name)
+					if not value._inited:
+						value.post_init()
+				
+				self._field_values[name] = value
+			return property(field_getter, field_setter)
+		
+		for attr, val in fields.items():
+			setattr(cls, attr, make_property(attr, val))
+		
+		return cls
+
+class DocumentObject(EosObject, metaclass=DocumentObjectType):
+	_ver = StringField(default='0.1')
+	
+	def __init__(self, *args, **kwargs):
+		super().__init__()
+		
+		self._field_values = {}
+		
+		for attr, val in self._fields.items():
+			if attr in kwargs:
+				setattr(self, attr, kwargs[attr])
+			else:
+				default = val.default
+				if callable(default):
+					default = default()
+				setattr(self, attr, default)
+	
+	def serialise(self):
+		return {attr: val.serialise(getattr(self, attr)) for attr, val in self._fields.items()}
+	
+	@classmethod
+	def deserialise(cls, value):
+		return cls(**{attr: val.deserialise(value[attr]) for attr, val in cls._fields.items()})
+
+class TopLevelObject(DocumentObject):
 	pass
 
-class DocumentObject(EosObject, metaclass=EosObjectType):
-	def __init__(self, *args, **kwargs):
-		# Process fields
-		for name, field in self._fields.items():
-			if name not in kwargs:
-				continue
-			setattr(self, name, kwargs.pop(name, field.default))
-
-# MongoDB distinguishes between these two, but we don't care
-TopLevelObject = DocumentObject
-EmbeddedObject = DocumentObject
+class EmbeddedObject(DocumentObject):
+	pass

eos/js.py

@@ -16,3 +16,4 @@
 
 import eos.core.objects
 import eos.core.bigint
+import eos.core.bitstring

eos/js_tests.py

@@ -0,0 +1,19 @@
+#   Eos - Verifiable elections
+#   Copyright © 2017  RunasSudo (Yingtong Li)
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU Affero General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program 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 Affero General Public License for more details.
+#
+#   You should have received a copy of the GNU Affero General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import eos.js
+
+import eos.core.test_code

js.html

@@ -1 +1 @@
-<script src="eos/__javascript__/eos.js.js"></script>
+<script src="eos/__javascript__/eos.js_tests.js"></script>

requirements.txt

@@ -1,3 +1,4 @@
+coverage==4.4.1
 mypy==0.521
 pymongo==3.5.1
 Transcrypt==3.6.50