Major reorganization

[ton] / don / string.py

diff --git a/don/string.py b/don/string.py
index a005098..a7974a4 100644 (file)
--- a/don/string.py
+++ b/don/string.py
@@ -1,5 +1,62 @@
+import binascii
+
+from don import constants, _shared
+
+def _integer_size_to_string_serializer(integer_size):
+    minimum = -(2 ** (integer_size - 1))
+    maximum = 2 ** (integer_size - 1) - 1
+    
+    def serializer(integer):
+        assert minimum <= integer and integer <= maximum
+        return '{}i{}'.format(integer, integer_size)
+
+    return serializer
+
+def _serialize_float(f):
+    return '{}f'.format(f)
+
+def _serialize_double(d):
+    return '{}d'.format(d)
+
+def _serialize_binary(b):
+    return '"{}"b'.format(binascii.hexlify(b).decode('ascii'))
+
+def _utf_encoding_to_serializer(utf_encoding):
+    def serializer(s):
+        return '"{}"{}'.format(s, utf_encoding)
+
+    return serializer
+
+def _string_serialize_list(l):
+    return '[{}]'.format(', '.join(map(serialize, l)))
+
+def _string_serialize_dictionary(d):
+    def serialize_kvp(kvp):
+        return serialize(kvp[0]) + ': ' + serialize(kvp[1])
+    return '{ ' + ', '.join(map(serialize_kvp, d.items())) + ' }'
+
+_STRING_SERIALIZERS = {
+    constants.VOID: lambda o: 'null',
+    constants.TRUE: lambda o: 'true',
+    constants.FALSE: lambda o: 'false',
+    constants.INT8: _integer_size_to_string_serializer(8),
+    constants.INT16: _integer_size_to_string_serializer(16),
+    constants.INT32: _integer_size_to_string_serializer(32),
+    constants.INT64: _integer_size_to_string_serializer(64),
+    constants.FLOAT: _serialize_float,
+    constants.DOUBLE: _serialize_double,
+    constants.BINARY: _serialize_binary,
+    constants.UTF8: _utf_encoding_to_serializer('utf8'),
+    constants.UTF16: _utf_encoding_to_serializer('utf16'),
+    constants.UTF32: _utf_encoding_to_serializer('utf32'),
+    constants.LIST: _string_serialize_list,
+    constants.DICTIONARY: _string_serialize_dictionary,
+}
+
 def serialize(o):
-    pass
+    o = _shared._tag(o)
+    
+    return _STRING_SERIALIZERS[o.tag](o.value)
 
 def deserialize(s):
     pass