52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
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// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "debug-helper-internal.h"
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#include "src/common/ptr-compr-inl.h"
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namespace i = v8::internal;
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namespace v8_debug_helper_internal {
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bool IsPointerCompressed(uintptr_t address) {
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#if COMPRESS_POINTERS_BOOL
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STATIC_ASSERT(i::kPtrComprHeapReservationSize == uintptr_t{1} << 32);
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intptr_t signed_address = static_cast<intptr_t>(address);
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return signed_address >= INT32_MIN && signed_address <= INT32_MAX;
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#else
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return false;
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#endif
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}
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uintptr_t Decompress(uintptr_t address, uintptr_t any_uncompressed_ptr) {
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if (!COMPRESS_POINTERS_BOOL || !IsPointerCompressed(address)) return address;
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return i::DecompressTaggedAny(any_uncompressed_ptr,
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static_cast<i::Tagged_t>(address));
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}
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d::PropertyKind GetArrayKind(d::MemoryAccessResult mem_result) {
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d::PropertyKind indexed_field_kind{};
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switch (mem_result) {
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case d::MemoryAccessResult::kOk:
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indexed_field_kind = d::PropertyKind::kArrayOfKnownSize;
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break;
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case d::MemoryAccessResult::kAddressNotValid:
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indexed_field_kind =
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d::PropertyKind::kArrayOfUnknownSizeDueToInvalidMemory;
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break;
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default:
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indexed_field_kind =
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d::PropertyKind::kArrayOfUnknownSizeDueToValidButInaccessibleMemory;
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break;
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}
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return indexed_field_kind;
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}
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std::vector<std::unique_ptr<ObjectProperty>> TqObject::GetProperties(
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d::MemoryAccessor accessor) {
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return std::vector<std::unique_ptr<ObjectProperty>>();
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}
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} // namespace v8_debug_helper_internal
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