mirror of
https://github.com/dart-lang/sdk
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893d3e86dd
Simplify handling of Never and add comments in AbstractType::IsSubtypeOf. Change-Id: Ie312944b380ff6a3f4ba59bf2a564d402110faa8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/135352 Commit-Queue: Régis Crelier <regis@google.com> Reviewed-by: Liam Appelbe <liama@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com>
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef RUNTIME_VM_SNAPSHOT_IDS_H_
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#define RUNTIME_VM_SNAPSHOT_IDS_H_
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#include "vm/dart_entry.h"
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#include "vm/raw_object.h"
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namespace dart {
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// Index for predefined singleton objects used in a snapshot.
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enum {
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kNullObject = 0,
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kSentinelObject,
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kTransitionSentinelObject,
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kEmptyArrayObject,
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kZeroArrayObject,
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kTrueValue,
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kFalseValue,
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// Marker for special encoding of double objects in message snapshots.
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kDoubleObject,
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// Object id has been optimized away; reader should use next available id.
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kOmittedObjectId,
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kClassIdsOffset = kOmittedObjectId,
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// The class ids of predefined classes are included in this list
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// at an offset of kClassIdsOffset.
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kFirstTypeSnapshotId = (kNumPredefinedCids + kClassIdsOffset),
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kLegacyObjectType = kFirstTypeSnapshotId,
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kNullableObjectType,
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kNullType,
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kDynamicType,
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kVoidType,
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kNeverType,
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kLegacyFunctionType,
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kLegacyNumberType,
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kLegacySmiType,
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kLegacyMintType,
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kLegacyDoubleType,
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kLegacyIntType,
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kLegacyBoolType,
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kLegacyStringType,
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kLegacyArrayType,
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kNonNullableObjectType,
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kNonNullableFunctionType,
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kNonNullableNumberType,
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kNonNullableSmiType,
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kNonNullableMintType,
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kNonNullableDoubleType,
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kNonNullableIntType,
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kNonNullableBoolType,
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kNonNullableStringType,
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kNonNullableArrayType,
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kLastTypeSnapshotId = kNonNullableArrayType,
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kFirstTypeArgumentsSnapshotId = kLastTypeSnapshotId + 1,
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kLegacyIntTypeArguments = kFirstTypeArgumentsSnapshotId,
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kLegacyDoubleTypeArguments,
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kLegacyStringTypeArguments,
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kLegacyStringDynamicTypeArguments,
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kLegacyStringLegacyStringTypeArguments,
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kNonNullableIntTypeArguments,
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kNonNullableDoubleTypeArguments,
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kNonNullableStringTypeArguments,
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kNonNullableStringDynamicTypeArguments,
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kNonNullableStringNonNullableStringTypeArguments,
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kEmptyTypeArguments,
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kLastTypeArgumentsSnapshotId = kEmptyTypeArguments,
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kExtractorParameterTypes,
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kExtractorParameterNames,
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kEmptyContextScopeObject,
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kImplicitClosureScopeObject,
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kEmptyObjectPool,
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kEmptyDescriptors,
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kEmptyVarDescriptors,
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kEmptyExceptionHandlers,
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kCachedArgumentsDescriptor0,
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kCachedArgumentsDescriptorN =
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(kCachedArgumentsDescriptor0 +
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ArgumentsDescriptor::kCachedDescriptorCount - 1),
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kCachedICDataArray0,
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kCachedICDataArrayN =
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(kCachedICDataArray0 + ICData::kCachedICDataArrayCount - 1),
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kInstanceObjectId,
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kStaticImplicitClosureObjectId,
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kMaxPredefinedObjectIds,
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kInvalidIndex = -1,
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};
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} // namespace dart
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#endif // RUNTIME_VM_SNAPSHOT_IDS_H_
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