storage/Variant.cpp

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
   3  * This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "Variant.h"
   8
   9 #include "nsCOMPtr.h"
  10
  11 extern "C" {
  12
  13 using namespace mozilla::storage;
  14
  15 /**
  16  * Return the data type of the given variant.  This method used to be exposed
  17  * to XPCOM, but since bug 1507540 it's marked [notxpcom] in the interface
  18  * definition, so we need this C function to access it from Rust.
  19  */
  20 uint16_t NS_GetDataType(nsIVariant* aVariant) {
  21   return aVariant->GetDataType();
  22 }
  23
  24 // Convenience functions to create Storage variants from Rust.
  25 void NS_NewStorageNullVariant(nsIVariant** aVariant) {
  26   nsCOMPtr<nsIVariant> variant = new NullVariant();
  27   variant.forget(aVariant);
  28 }
  29
  30 void NS_NewStorageBooleanVariant(bool aValue, nsIVariant** aVariant) {
  31   nsCOMPtr<nsIVariant> variant = new BooleanVariant(aValue);
  32   variant.forget(aVariant);
  33 }
  34
  35 void NS_NewStorageIntegerVariant(int64_t aValue, nsIVariant** aVariant) {
  36   nsCOMPtr<nsIVariant> variant = new IntegerVariant(aValue);
  37   variant.forget(aVariant);
  38 }
  39
  40 void NS_NewStorageFloatVariant(double aValue, nsIVariant** aVariant) {
  41   nsCOMPtr<nsIVariant> variant = new FloatVariant(aValue);
  42   variant.forget(aVariant);
  43 }
  44
  45 void NS_NewStorageTextVariant(const nsAString& aValue, nsIVariant** aVariant) {
  46   nsCOMPtr<nsIVariant> variant = new TextVariant(aValue);
  47   variant.forget(aVariant);
  48 }
  49
  50 void NS_NewStorageUTF8TextVariant(const nsACString& aValue,
  51                                   nsIVariant** aVariant) {
  52   nsCOMPtr<nsIVariant> variant = new UTF8TextVariant(aValue);
  53   variant.forget(aVariant);
  54 }
  55
  56 }  // extern "C"