зеркало из https://github.com/mozilla/gecko-dev.git
367 строки
9.1 KiB
C++
367 строки
9.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "nsCOMPtr.h"
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#include "nsCRTGlue.h"
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#include "nsContentUtils.h"
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#include "nsDOMClassInfoID.h"
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#include "nsDOMError.h"
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#include "nsDOMException.h"
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#include "nsIDOMDOMException.h"
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#include "nsIDocument.h"
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#include "nsString.h"
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#include "prprf.h"
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enum DOM4ErrorTypeCodeMap {
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/* DOM4 errors from http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#domexception */
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IndexSizeError = nsIDOMDOMException::INDEX_SIZE_ERR,
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HierarchyRequestError = nsIDOMDOMException::HIERARCHY_REQUEST_ERR,
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WrongDocumentError = nsIDOMDOMException::WRONG_DOCUMENT_ERR,
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InvalidCharacterError = nsIDOMDOMException::INVALID_CHARACTER_ERR,
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NoModificationAllowedError = nsIDOMDOMException::NO_MODIFICATION_ALLOWED_ERR,
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NotFoundError = nsIDOMDOMException::NOT_FOUND_ERR,
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NotSupportedError = nsIDOMDOMException::NOT_SUPPORTED_ERR,
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// Can't remove until setNamedItem is removed
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InUseAttributeError = nsIDOMDOMException::INUSE_ATTRIBUTE_ERR,
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InvalidStateError = nsIDOMDOMException::INVALID_STATE_ERR,
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SyntaxError = nsIDOMDOMException::SYNTAX_ERR,
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InvalidModificationError = nsIDOMDOMException::INVALID_MODIFICATION_ERR,
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NamespaceError = nsIDOMDOMException::NAMESPACE_ERR,
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InvalidAccessError = nsIDOMDOMException::INVALID_ACCESS_ERR,
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TypeMismatchError = nsIDOMDOMException::TYPE_MISMATCH_ERR,
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SecurityError = nsIDOMDOMException::SECURITY_ERR,
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NetworkError = nsIDOMDOMException::NETWORK_ERR,
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AbortError = nsIDOMDOMException::ABORT_ERR,
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URLMismatchError = nsIDOMDOMException::URL_MISMATCH_ERR,
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QuotaExceededError = nsIDOMDOMException::QUOTA_EXCEEDED_ERR,
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TimeoutError = nsIDOMDOMException::TIMEOUT_ERR,
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InvalidNodeTypeError = nsIDOMDOMException::INVALID_NODE_TYPE_ERR,
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DataCloneError = nsIDOMDOMException::DATA_CLONE_ERR,
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/* XXX Should be JavaScript native errors */
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TypeError = 0,
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RangeError = 0,
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/* IndexedDB errors http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#exceptions */
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UnknownError = 0,
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ConstraintError = 0,
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DataError = 0,
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TransactionInactiveError = 0,
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ReadOnlyError = 0,
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VersionError = 0,
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/* File API errors http://dev.w3.org/2006/webapi/FileAPI/#ErrorAndException */
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NotReadableError = 0,
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/* FileHandle API errors */
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LockedFileInactiveError = 0,
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};
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#define DOM4_MSG_DEF(name, message, nsresult) {(nsresult), name, #name, message},
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#define DOM_MSG_DEF(val, message) {(val), NS_ERROR_GET_CODE(val), #val, message},
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static struct ResultStruct
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{
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nsresult mNSResult;
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PRUint16 mCode;
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const char* mName;
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const char* mMessage;
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} gDOMErrorMsgMap[] = {
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#include "domerr.msg"
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{NS_OK, 0, nullptr, nullptr} // sentinel to mark end of array
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};
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#undef DOM4_MSG_DEF
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#undef DOM_MSG_DEF
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static void
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NSResultToNameAndMessage(nsresult aNSResult,
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const char** aName,
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const char** aMessage,
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PRUint16* aCode)
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{
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*aName = nullptr;
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*aMessage = nullptr;
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*aCode = 0;
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ResultStruct* result_struct = gDOMErrorMsgMap;
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while (result_struct->mName) {
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if (aNSResult == result_struct->mNSResult) {
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*aName = result_struct->mName;
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*aMessage = result_struct->mMessage;
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*aCode = result_struct->mCode;
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return;
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}
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++result_struct;
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}
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NS_WARNING("Huh, someone is throwing non-DOM errors using the DOM module!");
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return;
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}
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nsresult
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NS_GetNameAndMessageForDOMNSResult(nsresult aNSResult, const char** aName,
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const char** aMessage, PRUint16* aCode)
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{
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const char* name = nullptr;
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const char* message = nullptr;
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PRUint16 code = 0;
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NSResultToNameAndMessage(aNSResult, &name, &message, &code);
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if (name && message) {
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*aName = name;
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*aMessage = message;
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if (aCode) {
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*aCode = code;
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}
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return NS_OK;
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}
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return NS_ERROR_NOT_AVAILABLE;
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}
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class nsDOMException : public nsIException,
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public nsIDOMDOMException
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{
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public:
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nsDOMException() {}
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virtual ~nsDOMException() {}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIEXCEPTION
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NS_IMETHOD Init(nsresult aNSResult, const char* aName,
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const char* aMessage, PRUint16 aCode,
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nsIException* aDefaultException);
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NS_DECL_NSIDOMDOMEXCEPTION
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protected:
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const char* mName;
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const char* mMessage;
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nsCOMPtr<nsIException> mInner;
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nsresult mResult;
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PRUint16 mCode;
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};
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DOMCI_DATA(DOMException, nsDOMException)
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NS_IMPL_ADDREF(nsDOMException)
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NS_IMPL_RELEASE(nsDOMException)
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NS_INTERFACE_MAP_BEGIN(nsDOMException)
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NS_INTERFACE_MAP_ENTRY(nsIException)
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NS_INTERFACE_MAP_ENTRY(nsIDOMDOMException)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIException)
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NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DOMException)
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NS_INTERFACE_MAP_END
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nsresult
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NS_NewDOMException(nsresult aNSResult, nsIException* aDefaultException,
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nsIException** aException)
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{
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const char* name;
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const char* message;
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PRUint16 code;
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NSResultToNameAndMessage(aNSResult, &name, &message, &code);
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nsDOMException* inst = new nsDOMException();
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inst->Init(aNSResult, name, message, code, aDefaultException);
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*aException = inst;
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NS_ADDREF(*aException);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetCode(PRUint16* aCode)
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{
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NS_ENSURE_ARG_POINTER(aCode);
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*aCode = mCode;
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// Warn only when the code was changed (other than DOM Core)
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// or the code is useless (zero)
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if (NS_ERROR_GET_MODULE(mResult) != NS_ERROR_MODULE_DOM || !mCode) {
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nsCOMPtr<nsIDocument> doc =
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do_QueryInterface(nsContentUtils::GetDocumentFromCaller());
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if (doc) {
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doc->WarnOnceAbout(nsIDocument::eDOMExceptionCode);
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}
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetMessageMoz(char **aMessage)
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{
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if (mMessage) {
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*aMessage = NS_strdup(mMessage);
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} else {
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*aMessage = nullptr;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetResult(nsresult* aResult)
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{
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NS_ENSURE_ARG_POINTER(aResult);
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*aResult = mResult;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetName(char **aName)
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{
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NS_ENSURE_ARG_POINTER(aName);
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if (mName) {
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*aName = NS_strdup(mName);
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} else {
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*aName = nullptr;
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetFilename(char **aFilename)
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{
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if (mInner) {
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return mInner->GetFilename(aFilename);
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}
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NS_ENSURE_ARG_POINTER(aFilename);
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*aFilename = nullptr;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetLineNumber(PRUint32 *aLineNumber)
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{
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if (mInner) {
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return mInner->GetLineNumber(aLineNumber);
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}
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NS_ENSURE_ARG_POINTER(aLineNumber);
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*aLineNumber = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetColumnNumber(PRUint32 *aColumnNumber)
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{
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if (mInner) {
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return mInner->GetColumnNumber(aColumnNumber);
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}
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NS_ENSURE_ARG_POINTER(aColumnNumber);
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*aColumnNumber = 0;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetLocation(nsIStackFrame **aLocation)
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{
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if (mInner) {
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return mInner->GetLocation(aLocation);
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}
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NS_ENSURE_ARG_POINTER(aLocation);
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*aLocation = nullptr;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetInner(nsIException **aInner)
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{
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NS_ENSURE_ARG_POINTER(aInner);
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*aInner = nullptr;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::GetData(nsISupports **aData)
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{
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if (mInner) {
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return mInner->GetData(aData);
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}
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NS_ENSURE_ARG_POINTER(aData);
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*aData = nullptr;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDOMException::ToString(char **aReturn)
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{
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*aReturn = nullptr;
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static const char defaultMsg[] = "<no message>";
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static const char defaultLocation[] = "<unknown>";
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static const char defaultName[] = "<unknown>";
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static const char format[] =
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"[Exception... \"%s\" code: \"%d\" nsresult: \"0x%x (%s)\" location: \"%s\"]";
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nsCAutoString location;
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if (mInner) {
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nsXPIDLCString filename;
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mInner->GetFilename(getter_Copies(filename));
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if (!filename.IsEmpty()) {
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PRUint32 line_nr = 0;
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mInner->GetLineNumber(&line_nr);
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char *temp = PR_smprintf("%s Line: %d", filename.get(), line_nr);
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if (temp) {
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location.Assign(temp);
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PR_smprintf_free(temp);
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}
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}
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}
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if (location.IsEmpty()) {
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location = defaultLocation;
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}
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const char* msg = mMessage ? mMessage : defaultMsg;
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const char* resultName = mName ? mName : defaultName;
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*aReturn = PR_smprintf(format, msg, mCode, mResult, resultName,
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location.get());
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return *aReturn ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
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}
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NS_IMETHODIMP
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nsDOMException::Init(nsresult aNSResult, const char* aName,
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const char* aMessage, PRUint16 aCode,
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nsIException* aDefaultException)
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{
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mResult = aNSResult;
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mName = aName;
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mMessage = aMessage;
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mCode = aCode;
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mInner = aDefaultException;
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return NS_OK;
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}
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