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-rw-r--r--js/src/vm/ErrorReporting.cpp124
1 files changed, 124 insertions, 0 deletions
diff --git a/js/src/vm/ErrorReporting.cpp b/js/src/vm/ErrorReporting.cpp
new file mode 100644
index 0000000000..5877f3a4b4
--- /dev/null
+++ b/js/src/vm/ErrorReporting.cpp
@@ -0,0 +1,124 @@
+/* -*- 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/. */
+
+#include "vm/ErrorReporting.h"
+
+#include "mozilla/Move.h"
+
+#include <stdarg.h>
+
+#include "jscntxt.h"
+#include "jsexn.h"
+
+using mozilla::Move;
+
+using JS::UniqueTwoByteChars;
+
+void
+CallWarningReporter(JSContext* cx, JSErrorReport* reportp)
+{
+ MOZ_ASSERT(reportp);
+ MOZ_ASSERT(JSREPORT_IS_WARNING(reportp->flags));
+
+ if (JS::WarningReporter warningReporter = cx->runtime()->warningReporter)
+ warningReporter(cx, reportp);
+}
+
+void
+CompileError::throwError(JSContext* cx)
+{
+ if (JSREPORT_IS_WARNING(flags)) {
+ CallWarningReporter(cx, this);
+ return;
+ }
+
+ // If there's a runtime exception type associated with this error
+ // number, set that as the pending exception. For errors occuring at
+ // compile time, this is very likely to be a JSEXN_SYNTAXERR.
+ //
+ // If an exception is thrown but not caught, the JSREPORT_EXCEPTION
+ // flag will be set in report.flags. Proper behavior for an error
+ // reporter is to ignore a report with this flag for all but top-level
+ // compilation errors. The exception will remain pending, and so long
+ // as the non-top-level "load", "eval", or "compile" native function
+ // returns false, the top-level reporter will eventually receive the
+ // uncaught exception report.
+ ErrorToException(cx, this, nullptr, nullptr);
+}
+
+bool
+ReportCompileWarning(JSContext* cx, ErrorMetadata&& metadata, UniquePtr<JSErrorNotes> notes,
+ unsigned flags, unsigned errorNumber, va_list args)
+{
+ // On the main thread, report the error immediately. When compiling off
+ // thread, save the error so that the thread finishing the parse can report
+ // it later.
+ CompileError tempErr;
+ CompileError* err = &tempErr;
+ if (!cx->isJSContext() && !cx->addPendingCompileError(&err)) {
+ return false;
+ }
+
+ err->notes = Move(notes);
+ err->flags = flags;
+ err->errorNumber = errorNumber;
+
+ err->filename = metadata.filename;
+ err->lineno = metadata.lineNumber;
+ err->column = metadata.columnNumber;
+ err->isMuted = metadata.isMuted;
+
+ if (UniqueTwoByteChars lineOfContext = Move(metadata.lineOfContext))
+ err->initOwnedLinebuf(lineOfContext.release(), metadata.lineLength, metadata.tokenOffset);
+
+ if (!ExpandErrorArgumentsVA(cx, GetErrorMessage, nullptr, errorNumber,
+ nullptr, ArgumentsAreLatin1, err, args))
+ {
+ return false;
+ }
+
+ if (cx->isJSContext()) {
+ err->throwError(cx->asJSContext());
+ }
+
+ return true;
+}
+
+void
+ReportCompileError(JSContext* cx, ErrorMetadata&& metadata, UniquePtr<JSErrorNotes> notes,
+ unsigned flags, unsigned errorNumber, va_list args)
+{
+ // On the main thread, report the error immediately. When compiling off
+ // thread, save the error so that the thread finishing the parse can report
+ // it later.
+ CompileError tempErr;
+ CompileError* err = &tempErr;
+ if (!cx->isJSContext() && !cx->addPendingCompileError(&err)) {
+ return;
+ }
+
+ err->notes = Move(notes);
+ err->flags = flags;
+ err->errorNumber = errorNumber;
+
+ err->filename = metadata.filename;
+ err->lineno = metadata.lineNumber;
+ err->column = metadata.columnNumber;
+ err->isMuted = metadata.isMuted;
+
+ if (UniqueTwoByteChars lineOfContext = Move(metadata.lineOfContext))
+ err->initOwnedLinebuf(lineOfContext.release(), metadata.lineLength, metadata.tokenOffset);
+
+ if (!ExpandErrorArgumentsVA(cx, GetErrorMessage, nullptr, errorNumber,
+ nullptr, ArgumentsAreLatin1, err, args))
+ {
+ return;
+ }
+
+ if (cx->isJSContext()) {
+ err->throwError(cx->asJSContext());
+ }
+}