tools/json_schema_compiler/util_cc_helper.py

   1 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 _API_UTIL_NAMESPACE = 'json_schema_compiler::util'
   6
   7
   8 class UtilCCHelper(object):
   9   """A util class that generates code that uses
  10   tools/json_schema_compiler/util.cc.
  11   """
  12   def __init__(self, type_manager):
  13     self._type_manager = type_manager
  14
  15   def PopulateArrayFromList(self, src, dst, optional):
  16     """Generates code to get an array from src into dst.
  17
  18     src: ListValue*
  19     dst: std::vector or scoped_ptr<std::vector>
  20     """
  21     populate_list_fn = ('PopulateOptionalArrayFromList' if optional
  22                             else 'PopulateArrayFromList')
  23     return ('%s::%s(*%s, &%s)') % (_API_UTIL_NAMESPACE,
  24                                    populate_list_fn,
  25                                    src,
  26                                    dst)
  27
  28   def CreateValueFromArray(self, src, optional):
  29     """Generates code to create a scoped_pt<Value> from the array at src.
  30
  31     |src| The variable to convert, either a vector or scoped_ptr<vector>.
  32     |optional| Whether |type_| was optional. Optional types are pointers so
  33         must be treated differently.
  34     """
  35     if optional:
  36       name = 'CreateValueFromOptionalArray'
  37     else:
  38       name = 'CreateValueFromArray'
  39     return '%s::%s(%s)' % (_API_UTIL_NAMESPACE, name, src)
  40
  41   def GetIncludePath(self):
  42     return '#include "tools/json_schema_compiler/util.h"'
  43
  44   def GetValueTypeString(self, value, is_ptr=False):
  45     call = '.GetType()'
  46     if is_ptr:
  47       call = '->GetType()'
  48     return 'json_schema_compiler::util::ValueTypeToString(%s%s)' % (value, call)