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-rw-r--r--js/src/vm/ArgumentsObject-inl.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/vm/ArgumentsObject-inl.h b/js/src/vm/ArgumentsObject-inl.h
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+++ b/js/src/vm/ArgumentsObject-inl.h
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+/* -*- 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_ArgumentsObject_inl_h
+#define vm_ArgumentsObject_inl_h
+
+#include "vm/ArgumentsObject.h"
+
+#include "vm/EnvironmentObject.h"
+
+#include "vm/EnvironmentObject-inl.h"
+
+namespace js {
+
+inline const Value& ArgumentsObject::element(uint32_t i) const {
+ MOZ_ASSERT(isElement(i));
+ const Value& v = data()->args[i];
+ if (IsMagicScopeSlotValue(v)) {
+ CallObject& callobj =
+ getFixedSlot(MAYBE_CALL_SLOT).toObject().as<CallObject>();
+ return callobj.aliasedFormalFromArguments(v);
+ }
+ return v;
+}
+
+inline void ArgumentsObject::setElement(uint32_t i, const Value& v) {
+ MOZ_ASSERT(isElement(i));
+ Value value = data()->args[i];
+ if (IsMagicScopeSlotValue(value)) {
+ CallObject& callobj =
+ getFixedSlot(MAYBE_CALL_SLOT).toObject().as<CallObject>();
+ callobj.setAliasedFormalFromArguments(value, v);
+ } else {
+ setArg(i, v);
+ }
+}
+
+inline bool ArgumentsObject::maybeGetElements(uint32_t start, uint32_t count,
+ Value* vp) {
+ MOZ_ASSERT(start + count >= start);
+
+ uint32_t length = initialLength();
+ if (start > length || start + count > length || hasOverriddenElement()) {
+ return false;
+ }
+
+ for (uint32_t i = start, end = start + count; i < end; ++i, ++vp) {
+ *vp = element(i);
+ }
+ return true;
+}
+
+} /* namespace js */
+
+#endif /* vm_ArgumentsObject_inl_h */