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 class UtilCCHelper(object): 8 """A util class that generates code that uses 9 tools/json_schema_compiler/util.cc. 10 """ 11 def __init__(self, type_manager): 12 self._type_manager = type_manager 13 14 def PopulateArrayFromDictionary(self, array_prop, src, name, dst): 15 """Generates code to get an array from a src.name into dst. 16 17 src: DictionaryValue* 18 dst: std::vector or scoped_ptr<std::vector> 19 """ 20 prop = array_prop.item_type 21 sub = { 22 'namespace': API_UTIL_NAMESPACE, 23 'name': name, 24 'src': src, 25 'dst': dst, 26 } 27 28 sub['type'] = self._type_manager.GetCppType(prop), 29 if array_prop.optional: 30 val = ('%(namespace)s::PopulateOptionalArrayFromDictionary' 31 '(*%(src)s, "%(name)s", &%(dst)s)') 32 else: 33 val = ('%(namespace)s::PopulateArrayFromDictionary' 34 '(*%(src)s, "%(name)s", &%(dst)s)') 35 36 return val % sub 37 38 def PopulateArrayFromList(self, array_prop, src, dst, optional): 39 """Generates code to get an array from src into dst. 40 41 src: ListValue* 42 dst: std::vector or scoped_ptr<std::vector> 43 """ 44 prop = array_prop.item_type 45 sub = { 46 'namespace': API_UTIL_NAMESPACE, 47 'src': src, 48 'dst': dst, 49 'type': self._type_manager.GetCppType(prop), 50 } 51 52 if optional: 53 val = '%(namespace)s::PopulateOptionalArrayFromList(*%(src)s, &%(dst)s)' 54 else: 55 val = '%(namespace)s::PopulateArrayFromList(*%(src)s, &%(dst)s)' 56 57 return val % sub 58 59 def CreateValueFromArray(self, array_prop, src, optional): 60 """Generates code to create a scoped_pt<Value> from the array at src. 61 62 src: std::vector or scoped_ptr<std::vector> 63 """ 64 prop = array_prop.item_type 65 sub = { 66 'namespace': API_UTIL_NAMESPACE, 67 'src': src, 68 'type': self._type_manager.GetCppType(prop), 69 } 70 71 if optional: 72 val = '%(namespace)s::CreateValueFromOptionalArray(%(src)s)' 73 else: 74 val = '%(namespace)s::CreateValueFromArray(%(src)s)' 75 76 return val % sub 77 78 def GetIncludePath(self): 79 return '#include "tools/json_schema_compiler/util.h"' 80 81 def GetValueTypeString(self, value, is_ptr=False): 82 call = '.GetType()' 83 if is_ptr: 84 call = '->GetType()' 85 return 'json_schema_compiler::util::ValueTypeToString(%s%s)' % (value, call) 86