michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim: set ts=8 sts=4 et sw=4 tw=99: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* An implementaion of nsIException. */
michael@0: 
michael@0: #include "xpcprivate.h"
michael@0: #include "nsError.h"
michael@0: 
michael@0: /***************************************************************************/
michael@0: /* Quick and dirty mapping of well known result codes to strings. We only
michael@0: *  call this when building an exception object, so iterating the short array
michael@0: *  is not too bad.
michael@0: *
michael@0: *  It sure would be nice to have exceptions declared in idl and available
michael@0: *  in some more global way at runtime.
michael@0: */
michael@0: 
michael@0: static const struct ResultMap
michael@0: {nsresult rv; const char* name; const char* format;} map[] = {
michael@0: #define XPC_MSG_DEF(val, format) \
michael@0:     {(val), #val, format},
michael@0: #include "xpc.msg"
michael@0: #undef XPC_MSG_DEF
michael@0:     {NS_OK,0,0}   // sentinel to mark end of array
michael@0: };
michael@0: 
michael@0: #define RESULT_COUNT ((sizeof(map) / sizeof(map[0]))-1)
michael@0: 
michael@0: // static
michael@0: bool
michael@0: nsXPCException::NameAndFormatForNSResult(nsresult rv,
michael@0:                                          const char** name,
michael@0:                                          const char** format)
michael@0: {
michael@0: 
michael@0:     for (const ResultMap* p = map; p->name; p++) {
michael@0:         if (rv == p->rv) {
michael@0:             if (name) *name = p->name;
michael@0:             if (format) *format = p->format;
michael@0:             return true;
michael@0:         }
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: // static
michael@0: const void*
michael@0: nsXPCException::IterateNSResults(nsresult* rv,
michael@0:                                  const char** name,
michael@0:                                  const char** format,
michael@0:                                  const void** iterp)
michael@0: {
michael@0:     const ResultMap* p = (const ResultMap*) *iterp;
michael@0:     if (!p)
michael@0:         p = map;
michael@0:     else
michael@0:         p++;
michael@0:     if (!p->name)
michael@0:         p = nullptr;
michael@0:     else {
michael@0:         if (rv)
michael@0:             *rv = p->rv;
michael@0:         if (name)
michael@0:             *name = p->name;
michael@0:         if (format)
michael@0:             *format = p->format;
michael@0:     }
michael@0:     *iterp = p;
michael@0:     return p;
michael@0: }
michael@0: 
michael@0: // static
michael@0: uint32_t
michael@0: nsXPCException::GetNSResultCount()
michael@0: {
michael@0:     return RESULT_COUNT;
michael@0: }