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Diffstat (limited to '')
-rw-r--r-- | js/src/vm/ArgumentsObject-inl.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/vm/ArgumentsObject-inl.h b/js/src/vm/ArgumentsObject-inl.h new file mode 100644 index 0000000000..cc1b12ce65 --- /dev/null +++ b/js/src/vm/ArgumentsObject-inl.h @@ -0,0 +1,58 @@ +/* -*- 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 */ |