summaryrefslogtreecommitdiffstats
path: root/js/src/builtin/Boolean-inl.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/builtin/Boolean-inl.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/builtin/Boolean-inl.h')
-rw-r--r--js/src/builtin/Boolean-inl.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/builtin/Boolean-inl.h b/js/src/builtin/Boolean-inl.h
new file mode 100644
index 0000000000..dca2de84f5
--- /dev/null
+++ b/js/src/builtin/Boolean-inl.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * 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/. */
+
+#ifndef builtin_Boolean_inl_h
+#define builtin_Boolean_inl_h
+
+#include "builtin/Boolean.h"
+
+#include "vm/JSContext.h"
+#include "vm/WrapperObject.h"
+
+namespace js {
+
+inline bool EmulatesUndefined(JSObject* obj) {
+ // This may be called off the main thread. It's OK not to expose the object
+ // here as it doesn't escape.
+ AutoUnsafeCallWithABI unsafe(UnsafeABIStrictness::AllowPendingExceptions);
+ JSObject* actual = MOZ_LIKELY(!obj->is<WrapperObject>())
+ ? obj
+ : UncheckedUnwrapWithoutExpose(obj);
+ return actual->getClass()->emulatesUndefined();
+}
+
+inline bool EmulatesUndefinedCheckFuse(JSObject* obj,
+ size_t fuseValue) {
+ // This may be called off the main thread. It's OK not to expose the object
+ // here as it doesn't escape.
+ AutoUnsafeCallWithABI unsafe(UnsafeABIStrictness::AllowPendingExceptions);
+ JSObject* actual = MOZ_LIKELY(!obj->is<WrapperObject>())
+ ? obj
+ : UncheckedUnwrapWithoutExpose(obj);
+ bool emulatesUndefined = actual->getClass()->emulatesUndefined();
+ if (emulatesUndefined) {
+ MOZ_RELEASE_ASSERT(fuseValue != 0);
+ }
+ return emulatesUndefined;
+}
+
+} /* namespace js */
+
+#endif /* builtin_Boolean_inl_h */