Jens Johansen
6c909a0efa
Before this change we allowed to serialize some references as null, and would only complain when trying to read the dill back in. This CL changes that so it complains up front. It is unknown if any of this would ever occur in practise. Change-Id: Id5e1af89abfb88a2d4249bd439b53b062d7aeffa Reviewed-on: https://dart-review.googlesource.com/c/85392 Reviewed-by: Kevin Millikin <kmillikin@google.com> Commit-Queue: Jens Johansen <jensj@google.com>
54 lines
1.8 KiB
Dart
54 lines
1.8 KiB
Dart
// Copyright (c) 2017, 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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library vm.metadata.direct_call;
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import 'package:kernel/ast.dart';
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/// Metadata for annotating method invocations converted to direct calls.
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class DirectCallMetadata {
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final Reference _targetReference;
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final bool checkReceiverForNull;
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DirectCallMetadata(Member target, bool checkReceiverForNull)
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: this.byReference(getMemberReference(target), checkReceiverForNull);
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DirectCallMetadata.byReference(
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this._targetReference, this.checkReceiverForNull);
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Member get target => _targetReference.asMember;
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@override
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String toString() => "${target}${checkReceiverForNull ? '??' : ''}";
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}
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/// Repository for [DirectCallMetadata].
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class DirectCallMetadataRepository
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extends MetadataRepository<DirectCallMetadata> {
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@override
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final String tag = 'vm.direct-call.metadata';
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@override
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final Map<TreeNode, DirectCallMetadata> mapping =
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<TreeNode, DirectCallMetadata>{};
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@override
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void writeToBinary(DirectCallMetadata metadata, Node node, BinarySink sink) {
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sink.writeNullAllowedCanonicalNameReference(
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getCanonicalNameOfMember(metadata.target));
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sink.writeByte(metadata.checkReceiverForNull ? 1 : 0);
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}
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@override
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DirectCallMetadata readFromBinary(Node node, BinarySource source) {
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final targetReference = source.readCanonicalNameReference()?.getReference();
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if (targetReference == null) {
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throw 'DirectCallMetadata should have a non-null target';
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}
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final checkReceiverForNull = (source.readByte() != 0);
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return new DirectCallMetadata.byReference(
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targetReference, checkReceiverForNull);
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}
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}
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