The Tor Browser: storage/src/mozStorageStatementParams.cpp@6474c204b198 (annotated)

storage/src/mozStorageStatementParams.cpp@6474c204b198 (annotated)

storage/src/mozStorageStatementParams.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- 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 "nsMemory.h"
 #include "nsString.h"
 #include "jsapi.h"
 #include "mozStoragePrivateHelpers.h"
 #include "mozStorageStatementParams.h"
 #include "mozIStorageStatement.h"
 namespace mozilla {
 namespace storage {
 ////////////////////////////////////////////////////////////////////////////////
 //// StatementParams
 StatementParams::StatementParams(mozIStorageStatement *aStatement) :
     mStatement(aStatement)
 {
   NS_ASSERTION(mStatement != nullptr, "mStatement is null");
   (void)mStatement->GetParameterCount(&mParamCount);
 }
 NS_IMPL_ISUPPORTS(
   StatementParams,
   mozIStorageStatementParams,
   nsIXPCScriptable
 )
 ////////////////////////////////////////////////////////////////////////////////
 //// nsIXPCScriptable
 #define XPC_MAP_CLASSNAME StatementParams
 #define XPC_MAP_QUOTED_CLASSNAME "StatementParams"
 #define XPC_MAP_WANT_SETPROPERTY
 #define XPC_MAP_WANT_NEWENUMERATE
 #define XPC_MAP_WANT_NEWRESOLVE
 #define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
 #include "xpc_map_end.h"
 NS_IMETHODIMP
 StatementParams::SetProperty(nsIXPConnectWrappedNative *aWrapper,
                              JSContext *aCtx,
                              JSObject *aScopeObj,
                              jsid aId,
                              JS::Value *_vp,
                              bool *_retval)
 {
   NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
   if (JSID_IS_INT(aId)) {
     int idx = JSID_TO_INT(aId);
     nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCtx, *_vp));
     NS_ENSURE_TRUE(variant, NS_ERROR_UNEXPECTED);
     nsresult rv = mStatement->BindByIndex(idx, variant);
     NS_ENSURE_SUCCESS(rv, rv);
   }
   else if (JSID_IS_STRING(aId)) {
     JSString *str = JSID_TO_STRING(aId);
     size_t length;
     const jschar *chars = JS_GetStringCharsAndLength(aCtx, str, &length);
     NS_ENSURE_TRUE(chars, NS_ERROR_UNEXPECTED);
     NS_ConvertUTF16toUTF8 name(chars, length);
     // check to see if there's a parameter with this name
     nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCtx, *_vp));
     NS_ENSURE_TRUE(variant, NS_ERROR_UNEXPECTED);
     nsresult rv = mStatement->BindByName(name, variant);
     NS_ENSURE_SUCCESS(rv, rv);
   }
   else {
     return NS_ERROR_INVALID_ARG;
   }
   *_retval = true;
   return NS_OK;
 }
 NS_IMETHODIMP
 StatementParams::NewEnumerate(nsIXPConnectWrappedNative *aWrapper,
                               JSContext *aCtx,
                               JSObject *aScopeObj,
                               uint32_t aEnumOp,
                               jsval *_statep,
                               jsid *_idp,
                               bool *_retval)
 {
   NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
   switch (aEnumOp) {
     case JSENUMERATE_INIT:
     case JSENUMERATE_INIT_ALL:
     {
       // Start our internal index at zero.
       *_statep = JSVAL_ZERO;
       // And set our length, if needed.
       if (_idp)
         *_idp = INT_TO_JSID(mParamCount);
       break;
     }
     case JSENUMERATE_NEXT:
     {
       NS_ASSERTION(*_statep != JSVAL_NULL, "Internal state is null!");
       // Make sure we are in range first.
       uint32_t index = static_cast<uint32_t>(JSVAL_TO_INT(*_statep));
       if (index >= mParamCount) {
         *_statep = JSVAL_NULL;
         return NS_OK;
       }
       // Get the name of our parameter.
       nsAutoCString name;
       nsresult rv = mStatement->GetParameterName(index, name);
       NS_ENSURE_SUCCESS(rv, rv);
       // But drop the first character, which is going to be a ':'.
       JS::RootedString jsname(aCtx, ::JS_NewStringCopyN(aCtx, &(name.get()[1]),
                                                         name.Length() - 1));
       NS_ENSURE_TRUE(jsname, NS_ERROR_OUT_OF_MEMORY);
       // Set our name.
       JS::Rooted<jsid> id(aCtx);
       if (!::JS_StringToId(aCtx, jsname, &id)) {
         *_retval = false;
         return NS_OK;
       }
       *_idp = id;
       // And increment our index.
       *_statep = INT_TO_JSVAL(++index);
       break;
     }
     case JSENUMERATE_DESTROY:
     {
       // Clear our state.
       *_statep = JSVAL_NULL;
       break;
     }
   }
   return NS_OK;
 }
 NS_IMETHODIMP
 StatementParams::NewResolve(nsIXPConnectWrappedNative *aWrapper,
                             JSContext *aCtx,
                             JSObject *aScopeObj,
                             jsid aId,
                             JSObject **_objp,
                             bool *_retval)
 {
   NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
   // We do not throw at any point after this unless our index is out of range
   // because we want to allow the prototype chain to be checked for the
   // property.
   JS::RootedObject scope(aCtx, aScopeObj);
   JS::RootedId id(aCtx, aId);
   bool resolved = false;
   bool ok = true;
   if (JSID_IS_INT(id)) {
     uint32_t idx = JSID_TO_INT(id);
     // Ensure that our index is within range.  We do not care about the
     // prototype chain being checked here.
     if (idx >= mParamCount)
       return NS_ERROR_INVALID_ARG;
     ok = ::JS_DefineElement(aCtx, scope, idx, JSVAL_VOID, nullptr,
                             nullptr, JSPROP_ENUMERATE);
     resolved = true;
   }
   else if (JSID_IS_STRING(id)) {
     JSString *str = JSID_TO_STRING(id);
     size_t nameLength;
     const jschar *nameChars = JS_GetStringCharsAndLength(aCtx, str, &nameLength);
     NS_ENSURE_TRUE(nameChars, NS_ERROR_UNEXPECTED);
     // Check to see if there's a parameter with this name, and if not, let
     // the rest of the prototype chain be checked.
     NS_ConvertUTF16toUTF8 name(nameChars, nameLength);
     uint32_t idx;
     nsresult rv = mStatement->GetParameterIndex(name, &idx);
     if (NS_SUCCEEDED(rv)) {
       ok = ::JS_DefinePropertyById(aCtx, scope, id, JSVAL_VOID, nullptr,
                                    nullptr, JSPROP_ENUMERATE);
       resolved = true;
     }
   }
   *_retval = ok;
   *_objp = resolved && ok ? scope.get() : nullptr;
   return NS_OK;
 }
 } // namespace storage
 } // namespace mozilla

The Tor Browser / annotate

storage/src/mozStorageStatementParams.cpp@6474c204b198 (annotated)

storage/src/mozStorageStatementParams.cpp