Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/js/src/vm/SelfHosting.h b/js/src/vm/SelfHosting.h
new file mode 100644
index 0000000000..d97c54040c
--- /dev/null
+++ b/js/src/vm/SelfHosting.h
@@ -0,0 +1,88 @@
+/* -*- 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 vm_SelfHosting_h_
+#define vm_SelfHosting_h_
+
+#include "jsapi.h"
+#include "NamespaceImports.h"
+
+#include "vm/Stack.h"
+
+namespace js {
+
+namespace frontend {
+class ParserAtom;
+}
+
+/*
+ * Check whether the given JSFunction is a self-hosted function whose
+ * self-hosted name is the given name.
+ */
+bool IsSelfHostedFunctionWithName(JSFunction* fun, JSAtom* name);
+
+/*
+ * Returns the name of the cloned function's binding in the self-hosted global.
+ *
+ * This returns a non-null value only when this is a top level function
+ * declaration in the self-hosted global.
+ */
+PropertyName* GetClonedSelfHostedFunctionName(const JSFunction* fun);
+
+/*
+ * Same as GetClonedSelfHostedFunctionName, but `fun` is guaranteed to be an
+ * extended function.
+ *
+ * This function is supposed to be used off-thread, especially the JIT
+ * compilation thread, that cannot access JSFunction.flags_, because of
+ * a race condition.
+ *
+ * See Also: WrappedFunction.isExtended_
+ */
+PropertyName* GetClonedSelfHostedFunctionNameOffMainThread(JSFunction* fun);
+
+/*
+ * Uncloned self-hosted functions with `$` prefix are allocated as
+ * extended function, to store the original name in `_SetCanonicalName`.
+ */
+bool IsExtendedUnclonedSelfHostedFunctionName(JSAtom* name);
+bool IsExtendedUnclonedSelfHostedFunctionName(const frontend::ParserAtom* id);
+
+bool IsCallSelfHostedNonGenericMethod(NativeImpl impl);
+
+bool ReportIncompatibleSelfHostedMethod(JSContext* cx, const CallArgs& args);
+
+/* Get the compile options used when compiling self hosted code. */
+void FillSelfHostingCompileOptions(JS::CompileOptions& options);
+
+#ifdef DEBUG
+/*
+ * Calls a self-hosted function by name.
+ *
+ * This function is only available in debug mode, because it always atomizes
+ * its |name| parameter. Use the alternative function below in non-debug code.
+ */
+bool CallSelfHostedFunction(JSContext* cx, char const* name, HandleValue thisv,
+                            const AnyInvokeArgs& args, MutableHandleValue rval);
+#endif
+
+/*
+ * Calls a self-hosted function by name.
+ */
+bool CallSelfHostedFunction(JSContext* cx, HandlePropertyName name,
+                            HandleValue thisv, const AnyInvokeArgs& args,
+                            MutableHandleValue rval);
+
+bool intrinsic_NewArrayIterator(JSContext* cx, unsigned argc, JS::Value* vp);
+
+bool intrinsic_NewStringIterator(JSContext* cx, unsigned argc, JS::Value* vp);
+
+bool intrinsic_NewRegExpStringIterator(JSContext* cx, unsigned argc,
+                                       JS::Value* vp);
+
+} /* namespace js */
+
+#endif /* vm_SelfHosting_h_ */