/* -*- 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/. */ #ifndef vm_ArgumentsObject_inl_h #define vm_ArgumentsObject_inl_h #include "vm/ArgumentsObject.h" #include "vm/EnvironmentObject.h" #include "jsscriptinlines.h" #include "vm/EnvironmentObject-inl.h" namespace js { inline const Value& ArgumentsObject::element(uint32_t i) const { MOZ_ASSERT(!isElementDeleted(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(JSContext* cx, uint32_t i, const Value& v) { MOZ_ASSERT(!isElementDeleted(i)); GCPtrValue& lhs = data()->args[i]; if (IsMagicScopeSlotValue(lhs)) { uint32_t slot = SlotFromMagicScopeSlotValue(lhs); CallObject& callobj = getFixedSlot(MAYBE_CALL_SLOT).toObject().as<CallObject>(); for (Shape::Range<NoGC> r(callobj.lastProperty()); !r.empty(); r.popFront()) { if (r.front().slot() == slot) { callobj.setAliasedFormalFromArguments(cx, lhs, r.front().propid(), v); return; } } MOZ_CRASH("Bad Arguments::setElement"); } lhs = 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 || isAnyElementDeleted()) 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 */