mirror of
https://github.com/mozilla/gecko-dev.git
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df925b776c
This patch removes XPCNativeScriptableShared and XPCNativeScriptableSharedMap, which results in a net reduction of ~100 lines of code.
288 lines
8.4 KiB
C++
288 lines
8.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIXPConnect.h"
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#include "mozStorageStatement.h"
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#include "mozStorageService.h"
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#include "nsMemory.h"
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#include "nsString.h"
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#include "nsServiceManagerUtils.h"
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#include "mozStorageStatementJSHelper.h"
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#include "mozStorageStatementRow.h"
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#include "mozStorageStatementParams.h"
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#include "jsapi.h"
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#include "xpc_make_class.h"
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namespace mozilla {
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namespace storage {
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////////////////////////////////////////////////////////////////////////////////
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//// Global Functions
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static
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bool
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stepFunc(JSContext *aCtx,
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uint32_t,
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JS::Value *_vp)
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{
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nsCOMPtr<nsIXPConnect> xpc(Service::getXPConnect());
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nsCOMPtr<nsIXPConnectWrappedNative> wrapper;
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JSObject *obj = JS_THIS_OBJECT(aCtx, _vp);
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if (!obj) {
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return false;
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}
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nsresult rv =
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xpc->GetWrappedNativeOfJSObject(aCtx, obj, getter_AddRefs(wrapper));
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if (NS_FAILED(rv)) {
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::JS_ReportErrorASCII(aCtx, "mozIStorageStatement::step() could not obtain native statement");
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return false;
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}
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#ifdef DEBUG
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{
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nsCOMPtr<mozIStorageStatement> isStatement(
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do_QueryInterface(wrapper->Native())
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);
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NS_ASSERTION(isStatement, "How is this not a statement?!");
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}
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#endif
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Statement *stmt = static_cast<Statement *>(
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static_cast<mozIStorageStatement *>(wrapper->Native())
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);
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bool hasMore = false;
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rv = stmt->ExecuteStep(&hasMore);
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if (NS_SUCCEEDED(rv) && !hasMore) {
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_vp->setBoolean(false);
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(void)stmt->Reset();
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return true;
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}
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if (NS_FAILED(rv)) {
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::JS_ReportErrorASCII(aCtx, "mozIStorageStatement::step() returned an error");
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return false;
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}
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_vp->setBoolean(hasMore);
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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//// StatementJSHelper
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nsresult
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StatementJSHelper::getRow(Statement *aStatement,
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JSContext *aCtx,
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JSObject *aScopeObj,
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JS::Value *_row)
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{
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MOZ_ASSERT(NS_IsMainThread());
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nsresult rv;
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#ifdef DEBUG
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int32_t state;
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(void)aStatement->GetState(&state);
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NS_ASSERTION(state == mozIStorageStatement::MOZ_STORAGE_STATEMENT_EXECUTING,
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"Invalid state to get the row object - all calls will fail!");
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#endif
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if (!aStatement->mStatementRowHolder) {
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JS::RootedObject scope(aCtx, aScopeObj);
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nsCOMPtr<mozIStorageStatementRow> row(new StatementRow(aStatement));
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NS_ENSURE_TRUE(row, NS_ERROR_OUT_OF_MEMORY);
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nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
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nsCOMPtr<nsIXPConnect> xpc(Service::getXPConnect());
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rv = xpc->WrapNativeHolder(
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aCtx,
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::JS_GetGlobalForObject(aCtx, scope),
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row,
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NS_GET_IID(mozIStorageStatementRow),
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getter_AddRefs(holder)
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);
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NS_ENSURE_SUCCESS(rv, rv);
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RefPtr<StatementRowHolder> rowHolder = new StatementRowHolder(holder);
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aStatement->mStatementRowHolder =
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new nsMainThreadPtrHolder<nsIXPConnectJSObjectHolder>(rowHolder);
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}
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JS::Rooted<JSObject*> obj(aCtx);
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obj = aStatement->mStatementRowHolder->GetJSObject();
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NS_ENSURE_STATE(obj);
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_row->setObject(*obj);
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return NS_OK;
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}
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nsresult
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StatementJSHelper::getParams(Statement *aStatement,
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JSContext *aCtx,
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JSObject *aScopeObj,
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JS::Value *_params)
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{
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MOZ_ASSERT(NS_IsMainThread());
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nsresult rv;
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#ifdef DEBUG
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int32_t state;
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(void)aStatement->GetState(&state);
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NS_ASSERTION(state == mozIStorageStatement::MOZ_STORAGE_STATEMENT_READY,
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"Invalid state to get the params object - all calls will fail!");
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#endif
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if (!aStatement->mStatementParamsHolder) {
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JS::RootedObject scope(aCtx, aScopeObj);
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nsCOMPtr<mozIStorageStatementParams> params =
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new StatementParams(aStatement);
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NS_ENSURE_TRUE(params, NS_ERROR_OUT_OF_MEMORY);
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nsCOMPtr<nsIXPConnectJSObjectHolder> holder;
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nsCOMPtr<nsIXPConnect> xpc(Service::getXPConnect());
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rv = xpc->WrapNativeHolder(
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aCtx,
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::JS_GetGlobalForObject(aCtx, scope),
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params,
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NS_GET_IID(mozIStorageStatementParams),
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getter_AddRefs(holder)
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);
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NS_ENSURE_SUCCESS(rv, rv);
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RefPtr<StatementParamsHolder> paramsHolder =
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new StatementParamsHolder(holder);
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aStatement->mStatementParamsHolder =
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new nsMainThreadPtrHolder<nsIXPConnectJSObjectHolder>(paramsHolder);
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}
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JS::Rooted<JSObject*> obj(aCtx);
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obj = aStatement->mStatementParamsHolder->GetJSObject();
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NS_ENSURE_STATE(obj);
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_params->setObject(*obj);
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return NS_OK;
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}
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NS_IMETHODIMP_(MozExternalRefCountType) StatementJSHelper::AddRef() { return 2; }
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NS_IMETHODIMP_(MozExternalRefCountType) StatementJSHelper::Release() { return 1; }
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NS_INTERFACE_MAP_BEGIN(StatementJSHelper)
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NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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////////////////////////////////////////////////////////////////////////////////
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//// nsIXPCScriptable
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#define XPC_MAP_CLASSNAME StatementJSHelper
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#define XPC_MAP_QUOTED_CLASSNAME "StatementJSHelper"
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#define XPC_MAP_WANT_GETPROPERTY
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#define XPC_MAP_WANT_RESOLVE
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#define XPC_MAP_FLAGS nsIXPCScriptable::ALLOW_PROP_MODS_DURING_RESOLVE
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#include "xpc_map_end.h"
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NS_IMETHODIMP
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StatementJSHelper::GetProperty(nsIXPConnectWrappedNative *aWrapper,
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JSContext *aCtx,
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JSObject *aScopeObj,
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jsid aId,
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JS::Value *_result,
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bool *_retval)
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{
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if (!JSID_IS_STRING(aId))
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return NS_OK;
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JS::Rooted<JSObject*> scope(aCtx, aScopeObj);
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JS::Rooted<jsid> id(aCtx, aId);
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#ifdef DEBUG
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{
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nsCOMPtr<mozIStorageStatement> isStatement(
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do_QueryInterface(aWrapper->Native()));
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NS_ASSERTION(isStatement, "How is this not a statement?!");
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}
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#endif
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Statement *stmt = static_cast<Statement *>(
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static_cast<mozIStorageStatement *>(aWrapper->Native())
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);
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JSFlatString *str = JSID_TO_FLAT_STRING(id);
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if (::JS_FlatStringEqualsAscii(str, "row"))
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return getRow(stmt, aCtx, scope, _result);
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if (::JS_FlatStringEqualsAscii(str, "params"))
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return getParams(stmt, aCtx, scope, _result);
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return NS_OK;
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}
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NS_IMETHODIMP
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StatementJSHelper::Resolve(nsIXPConnectWrappedNative *aWrapper,
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JSContext *aCtx, JSObject *aScopeObj,
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jsid aId, bool *aResolvedp,
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bool *_retval)
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{
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if (!JSID_IS_STRING(aId))
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return NS_OK;
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JS::RootedObject scope(aCtx, aScopeObj);
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if (::JS_FlatStringEqualsAscii(JSID_TO_FLAT_STRING(aId), "step")) {
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*_retval = ::JS_DefineFunction(aCtx, scope, "step", stepFunc,
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0, JSPROP_RESOLVING) != nullptr;
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*aResolvedp = true;
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return NS_OK;
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}
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////////////
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//// StatementJSObjectHolder
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NS_IMPL_ISUPPORTS(StatementJSObjectHolder, nsIXPConnectJSObjectHolder);
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JSObject*
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StatementJSObjectHolder::GetJSObject()
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{
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return mHolder->GetJSObject();
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}
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StatementJSObjectHolder::StatementJSObjectHolder(nsIXPConnectJSObjectHolder* aHolder)
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: mHolder(aHolder)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(mHolder);
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}
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StatementParamsHolder::~StatementParamsHolder()
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{
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MOZ_ASSERT(NS_IsMainThread());
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// We are considered dead at this point, so any wrappers for row or params
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// need to lose their reference to the statement.
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nsCOMPtr<nsIXPConnectWrappedNative> wrapper = do_QueryInterface(mHolder);
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nsCOMPtr<mozIStorageStatementParams> iObj = do_QueryWrappedNative(wrapper);
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StatementParams *obj = static_cast<StatementParams *>(iObj.get());
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obj->mStatement = nullptr;
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}
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StatementRowHolder::~StatementRowHolder()
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{
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MOZ_ASSERT(NS_IsMainThread());
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// We are considered dead at this point, so any wrappers for row or params
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// need to lose their reference to the statement.
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nsCOMPtr<nsIXPConnectWrappedNative> wrapper = do_QueryInterface(mHolder);
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nsCOMPtr<mozIStorageStatementRow> iObj = do_QueryWrappedNative(wrapper);
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StatementRow *obj = static_cast<StatementRow *>(iObj.get());
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obj->mStatement = nullptr;
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}
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} // namespace storage
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} // namespace mozilla
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