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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 "nsJSUtils.h"
#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),
mParamCount(0)
{
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_RESOLVE
#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);
nsAutoJSString autoStr;
if (!autoStr.init(aCtx, str)) {
return NS_ERROR_FAILURE;
}
NS_ConvertUTF16toUTF8 name(autoStr);
// 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,
JS::AutoIdVector &aProperties,
bool *_retval)
{
NS_ENSURE_TRUE(mStatement, NS_ERROR_NOT_INITIALIZED);
JS::RootedObject scope(aCtx, aScopeObj);
if (!aProperties.reserve(mParamCount)) {
*_retval = false;
return NS_OK;
}
for (uint32_t i = 0; i < mParamCount; i++) {
// Get the name of our parameter.
nsAutoCString name;
nsresult rv = mStatement->GetParameterName(i, 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;
}
aProperties.infallibleAppend(id);
}
return NS_OK;
}
NS_IMETHODIMP
StatementParams::Resolve(nsIXPConnectWrappedNative *aWrapper,
JSContext *aCtx,
JSObject *aScopeObj,
jsid aId,
bool *resolvedp,
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, JS::UndefinedHandleValue,
JSPROP_ENUMERATE | JSPROP_RESOLVING);
resolved = true;
}
else if (JSID_IS_STRING(id)) {
JSString *str = JSID_TO_STRING(id);
nsAutoJSString autoStr;
if (!autoStr.init(aCtx, str)) {
return NS_ERROR_FAILURE;
}
// 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(autoStr);
uint32_t idx;
nsresult rv = mStatement->GetParameterIndex(name, &idx);
if (NS_SUCCEEDED(rv)) {
ok = ::JS_DefinePropertyById(aCtx, scope, id, JS::UndefinedHandleValue,
JSPROP_ENUMERATE | JSPROP_RESOLVING);
resolved = true;
}
}
*_retval = ok;
*resolvedp = resolved && ok;
return NS_OK;
}
} // namespace storage
} // namespace mozilla
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