+ def get_initializer(self, null_init):
+ '''Return literal expression for this field's default value.'''
+
+ if self.pbtype == 'MESSAGE':
+ if null_init:
+ return '%s_init_zero' % self.ctype
+ else:
+ return '%s_init_default' % self.ctype
+
+ if self.default is None or null_init:
+ if self.pbtype == 'STRING':
+ return '""'
+ elif self.pbtype == 'BYTES':
+ return '{0, {0}}'
+ elif self.pbtype == 'ENUM':
+ return '(%s)0' % self.ctype
+ else:
+ return '0'
+
+ default = str(self.default)
+
+ if self.pbtype == 'STRING':
+ default = default.encode('utf-8').encode('string_escape')
+ default = default.replace('"', '\\"')
+ default = '"' + default + '"'
+ elif self.pbtype == 'BYTES':
+ data = default.decode('string_escape')
+ data = ['0x%02x' % ord(c) for c in data]
+ if len(data) == 0:
+ default = '{0, {0}}'
+ else:
+ default = '{%d, {%s}}' % (len(data), ','.join(data))
+ elif self.pbtype in ['FIXED32', 'UINT32']:
+ default += 'u'
+ elif self.pbtype in ['FIXED64', 'UINT64']:
+ default += 'ull'
+ elif self.pbtype in ['SFIXED64', 'INT64']:
+ default += 'll'
+
+ return default
+