1 files changed, 152 insertions, 0 deletions
diff --git a/storage/mozStorageStatementRow.cpp b/storage/mozStorageStatementRow.cpp
new file mode 100644
index 0000000000..7d203d7513
--- /dev/null
+++ b/storage/mozStorageStatementRow.cpp
@@ -0,0 +1,152 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsString.h"
+
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/MozStorageStatementRowBinding.h"
+#include "mozStorageStatementRow.h"
+#include "mozStorageStatement.h"
+
+#include "jsapi.h"
+#include "js/Array.h"               // JS::NewArrayObject
+#include "js/PropertyAndElement.h"  // JS_DefineElement
+#include "js/Value.h"
+
+#include "xpc_make_class.h"
+
+namespace mozilla {
+namespace storage {
+
+////////////////////////////////////////////////////////////////////////////////
+//// StatementRow
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(StatementRow, mWindow)
+
+NS_INTERFACE_TABLE_HEAD(StatementRow)
+  NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY
+  NS_INTERFACE_TABLE(StatementRow, nsISupports)
+  NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(StatementRow)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(StatementRow)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(StatementRow)
+
+StatementRow::StatementRow(nsPIDOMWindowInner* aWindow, Statement* aStatement)
+    : mWindow(aWindow), mStatement(aStatement) {}
+
+JSObject* StatementRow::WrapObject(JSContext* aCx,
+                                   JS::Handle<JSObject*> aGivenProto) {
+  return dom::MozStorageStatementRow_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+void StatementRow::NamedGetter(JSContext* aCx, const nsAString& aName,
+                               bool& aFound,
+                               JS::MutableHandle<JS::Value> aResult,
+                               mozilla::ErrorResult& aRv) {
+  if (!mStatement) {
+    aRv.Throw(NS_ERROR_NOT_INITIALIZED);
+    return;
+  }
+
+  nsCString name = NS_ConvertUTF16toUTF8(aName);
+
+  uint32_t idx;
+  {
+    nsresult rv = mStatement->GetColumnIndex(name, &idx);
+    if (NS_FAILED(rv)) {
+      // It's highly likely that the name doesn't exist, so let the JS engine
+      // check the prototype chain and throw if that doesn't have the property
+      // either.
+      aFound = false;
+      return;
+    }
+  }
+
+  int32_t type;
+  aRv = mStatement->GetTypeOfIndex(idx, &type);
+  if (aRv.Failed()) {
+    return;
+  }
+
+  switch (type) {
+    case mozIStorageValueArray::VALUE_TYPE_INTEGER:
+    case mozIStorageValueArray::VALUE_TYPE_FLOAT: {
+      double dval;
+      aRv = mStatement->GetDouble(idx, &dval);
+      if (aRv.Failed()) {
+        return;
+      }
+      aResult.set(::JS_NumberValue(dval));
+      break;
+    }
+    case mozIStorageValueArray::VALUE_TYPE_TEXT: {
+      uint32_t bytes;
+      const char16_t* sval = reinterpret_cast<const char16_t*>(
+          static_cast<mozIStorageStatement*>(mStatement)
+              ->AsSharedWString(idx, &bytes));
+      JSString* str =
+          ::JS_NewUCStringCopyN(aCx, sval, bytes / sizeof(char16_t));
+      if (!str) {
+        aRv.Throw(NS_ERROR_UNEXPECTED);
+        return;
+      }
+      aResult.setString(str);
+      break;
+    }
+    case mozIStorageValueArray::VALUE_TYPE_BLOB: {
+      uint32_t length;
+      const uint8_t* blob = static_cast<mozIStorageStatement*>(mStatement)
+                                ->AsSharedBlob(idx, &length);
+      JS::Rooted<JSObject*> obj(aCx, JS::NewArrayObject(aCx, length));
+      if (!obj) {
+        aRv.Throw(NS_ERROR_UNEXPECTED);
+        return;
+      }
+      aResult.setObject(*obj);
+
+      // Copy the blob over to the JS array.
+      for (uint32_t i = 0; i < length; i++) {
+        if (!::JS_DefineElement(aCx, obj, i, blob[i], JSPROP_ENUMERATE)) {
+          aRv.Throw(NS_ERROR_UNEXPECTED);
+          return;
+        }
+      }
+      break;
+    }
+    case mozIStorageValueArray::VALUE_TYPE_NULL:
+      aResult.setNull();
+      break;
+    default:
+      NS_ERROR("unknown column type returned, what's going on?");
+      break;
+  }
+  aFound = true;
+}
+
+void StatementRow::GetSupportedNames(nsTArray<nsString>& aNames) {
+  if (!mStatement) {
+    return;
+  }
+
+  uint32_t columnCount;
+  nsresult rv = mStatement->GetColumnCount(&columnCount);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return;
+  }
+
+  for (uint32_t i = 0; i < columnCount; i++) {
+    nsAutoCString name;
+    nsresult rv = mStatement->GetColumnName(i, name);
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return;
+    }
+    aNames.AppendElement(NS_ConvertUTF8toUTF16(name));
+  }
+}
+
+}  // namespace storage
+}  // namespace mozilla