blob: ae54abf3f71dacdb3fb7979f5b5ed26a761b8bfb [file] [log] [blame]
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/roots.h"
#include "src/elements-kind.h"
#include "src/objects-inl.h"
#include "src/visitors.h"
namespace v8 {
namespace internal {
const char* RootsTable::root_names_[RootsTable::kEntriesCount] = {
#define ROOT_NAME(type, name, CamelName) #name,
ROOT_LIST(ROOT_NAME)
#undef ROOT_NAME
};
// static
RootIndex RootsTable::RootIndexForFixedTypedArray(
ExternalArrayType array_type) {
switch (array_type) {
#define ARRAY_TYPE_TO_ROOT_INDEX(Type, type, TYPE, ctype) \
case kExternal##Type##Array: \
return RootIndex::kFixed##Type##ArrayMap;
TYPED_ARRAYS(ARRAY_TYPE_TO_ROOT_INDEX)
#undef ARRAY_TYPE_TO_ROOT_INDEX
}
UNREACHABLE();
}
// static
RootIndex RootsTable::RootIndexForFixedTypedArray(ElementsKind elements_kind) {
switch (elements_kind) {
#define TYPED_ARRAY_CASE(Type, type, TYPE, ctype) \
case TYPE##_ELEMENTS: \
return RootIndex::kFixed##Type##ArrayMap;
TYPED_ARRAYS(TYPED_ARRAY_CASE)
default:
UNREACHABLE();
#undef TYPED_ARRAY_CASE
}
}
// static
RootIndex RootsTable::RootIndexForEmptyFixedTypedArray(
ElementsKind elements_kind) {
switch (elements_kind) {
#define ELEMENT_KIND_TO_ROOT_INDEX(Type, type, TYPE, ctype) \
case TYPE##_ELEMENTS: \
return RootIndex::kEmptyFixed##Type##Array;
TYPED_ARRAYS(ELEMENT_KIND_TO_ROOT_INDEX)
#undef ELEMENT_KIND_TO_ROOT_INDEX
default:
UNREACHABLE();
}
}
void ReadOnlyRoots::Iterate(RootVisitor* visitor) {
visitor->VisitRootPointers(Root::kReadOnlyRootList, nullptr,
FullObjectSlot(read_only_roots_),
FullObjectSlot(&read_only_roots_[kEntriesCount]));
visitor->Synchronize(VisitorSynchronization::kReadOnlyRootList);
}
#ifdef DEBUG
bool ReadOnlyRoots::CheckType(RootIndex index) const {
Object root(at(index));
switch (index) {
#define CHECKTYPE(Type, name, CamelName) \
case RootIndex::k##CamelName: \
return root->Is##Type();
READ_ONLY_ROOT_LIST(CHECKTYPE)
#undef CHECKTYPE
default:
UNREACHABLE();
return false;
}
}
#endif // DEBUG
} // namespace internal
} // namespace v8