Supporting more APIs with json_schema_compiler

tools/json_schema_compiler/util_cc_helper.py

Index: tools/json_schema_compiler/util_cc_helper.py
diff --git a/tools/json_schema_compiler/util_cc_helper.py b/tools/json_schema_compiler/util_cc_helper.py
new file mode 100644
index 0000000000000000000000000000000000000000..34eded07ea761eef995ae92c0fb1f1567a236c9f
--- /dev/null
+++ b/tools/json_schema_compiler/util_cc_helper.py
@@ -0,0 +1,104 @@
+# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+API_UTIL_NAMESPACE = 'json_schema_compiler::util'
+
+class UtilCCHelper(object):
+  """A util class that generates code that uses
+  tools/json_schema_compiler/util.cc.
+  """
+  def __init__(self, type_manager):
+    self._type_manager = type_manager
+
+  def GetArray(self, array_prop, src, name, dst):
+    """Generates code to get an array from a src.name into dst.
+
+    src: DictionaryValue*
+    dst: std::vector or scoped_ptr<std::vector>
+    """
+    prop = array_prop.item_type
+    sub = {
+        'namespace': API_UTIL_NAMESPACE,
+        'name': name,
+        'src': src,
+        'dst': dst,
+    }
+
+    sub['type'] = self._type_manager.GetType(prop)
+    if array_prop.optional:
+      val = ('%(namespace)s::GetOptionalArrayFromDictionary'
+          '(*%(src)s, "%(name)s", &%(dst)s)')
+    else:
+      val = ('%(namespace)s::GetArrayFromDictionary'
+          '(*%(src)s, "%(name)s", &%(dst)s)')
+
+    return val % sub
+
+  def GetArrayFromList(self, array_prop, src, dst):
+    """Generates code to get an array from src into dst.
+
+    src: ListValue*
+    dst: std::vector or scoped_ptr<std::vector>
+    """
+    prop = array_prop.item_type
+    sub = {
+        'namespace': API_UTIL_NAMESPACE,
+        'src': src,
+        'dst': dst,
+        'type': self._type_manager.GetType(prop),
+    }
+
+    if array_prop.optional:
+      val = '%(namespace)s::GetOptionalArrayFromList(*%(src)s, &%(dst)s)'
+    else:
+      val = '%(namespace)s::GetArrayFromList(*%(src)s, &%(dst)s)'
+
+    return val % sub
+
+  def SetArray(self, array_prop, src, name, dst):
+    """Sets dst.name to the array at src
+
+    src: std::vector or scoped_ptr<std::vector>
+    dst: DictionaryValue*
+    """
+    prop = array_prop.item_type
+    sub = {
+        'namespace': API_UTIL_NAMESPACE,
+        'src': src,
+        'name': name,
+        'dst': dst,
+        'type': self._type_manager.GetType(prop),
+    }
+
+    if array_prop.optional:
+      val = ('%(namespace)s::SetOptionalArrayToDictionary'
+          '(%(src)s, "%(name)s", %(dst)s)')
+    else:
+      val = '%(namespace)s::SetArrayToDictionary(%(src)s, "%(name)s", %(dst)s)'
+
+    return val % sub
+
+  def SetArrayToList(self, array_prop, src, dst):
+    """Sets dst to the array at src
+
+    src: std::vector or scoped_ptr<std::vector>
+    dst: ListValue*
+    """
+    prop = array_prop.item_type
+    sub = {
+        'namespace': API_UTIL_NAMESPACE,
+        'src': src,
+        'dst': dst,
+        'type': self._type_manager.GetType(prop),
+    }
+
+    if array_prop.optional:
+      val = '%(namespace)s::SetOptionalArrayToList(%(src)s, %(dst)s)'
+    else:
+      val = '%(namespace)s::SetArrayToList(%(src)s, %(dst)s)'
+
+    return val % sub
+
+  def GetIncludePath(self):
+    return '#include "tools/json_schema_compiler/util.h"'