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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/xpconnect/src/XPCException.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/xpconnect/src/XPCException.cpp')
-rw-r--r--js/xpconnect/src/XPCException.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/js/xpconnect/src/XPCException.cpp b/js/xpconnect/src/XPCException.cpp
new file mode 100644
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+++ b/js/xpconnect/src/XPCException.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=99: */
+/* 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/. */
+
+/* An implementaion of nsIException. */
+
+#include "xpcprivate.h"
+#include "nsError.h"
+
+/***************************************************************************/
+/* Quick and dirty mapping of well known result codes to strings. We only
+* call this when building an exception object, so iterating the short array
+* is not too bad.
+*
+* It sure would be nice to have exceptions declared in idl and available
+* in some more global way at runtime.
+*/
+
+static const struct ResultMap
+{nsresult rv; const char* name; const char* format;} map[] = {
+#define XPC_MSG_DEF(val, format) \
+ {(val), #val, format},
+#include "xpc.msg"
+#undef XPC_MSG_DEF
+ {NS_OK,0,0} // sentinel to mark end of array
+};
+
+#define RESULT_COUNT ((sizeof(map) / sizeof(map[0]))-1)
+
+// static
+bool
+nsXPCException::NameAndFormatForNSResult(nsresult rv,
+ const char** name,
+ const char** format)
+{
+
+ for (const ResultMap* p = map; p->name; p++) {
+ if (rv == p->rv) {
+ if (name) *name = p->name;
+ if (format) *format = p->format;
+ return true;
+ }
+ }
+ return false;
+}
+
+// static
+const void*
+nsXPCException::IterateNSResults(nsresult* rv,
+ const char** name,
+ const char** format,
+ const void** iterp)
+{
+ const ResultMap* p = (const ResultMap*) *iterp;
+ if (!p)
+ p = map;
+ else
+ p++;
+ if (!p->name)
+ p = nullptr;
+ else {
+ if (rv)
+ *rv = p->rv;
+ if (name)
+ *name = p->name;
+ if (format)
+ *format = p->format;
+ }
+ *iterp = p;
+ return p;
+}
+
+// static
+uint32_t
+nsXPCException::GetNSResultCount()
+{
+ return RESULT_COUNT;
+}