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This work pulls in v8 support for these features with appropriate changes for Dart and closes https://github.com/dart-lang/sdk/issues/34935. This adds support for the following features: * Interpreting patterns as Unicode patterns instead of BMP patterns * the dotAll flag (`/s`) for changing the behavior of '.' to also match line terminators * Escapes for character classes described by Unicode property groups (e.g., \p{Greek} to match all Greek characters, or \P{Greek} for all non-Greek characters). The following TC39 proposals describe some of the added features: * https://github.com/tc39/proposal-regexp-dotall-flag * https://github.com/tc39/proposal-regexp-unicode-property-escapes These additional changes are included: * Extends named capture group names to include the full range of identifier characters supported by ECMAScript, not just ASCII. * Changing the RegExp interface to return RegExpMatch objects, not Match objects, so that downcasting is not necessary to use named capture groups from Dart **Note**: The changes to the RegExp interface are a breaking change for implementers of the RegExp interface. Current users of the RegExp interface (i.e., code using Dart RegExp objects) will not be affected. Change-Id: Ie62e6082a0e2fedc1680ef2576ce0c6db80fc19a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/100641 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Stevie Strickland <sstrickl@google.com>
33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
// Copyright (c) 2019, 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_SPLAY_TREE_H_
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#define RUNTIME_VM_SPLAY_TREE_H_
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#include "platform/splay-tree.h"
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#include "vm/zone.h"
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namespace dart {
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// A zone splay tree. The config type parameter encapsulates the
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// different configurations of a concrete splay tree (see
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// platform/splay-tree.h). The tree itself and all its elements are allocated
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// in the Zone.
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template <typename Config>
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class ZoneSplayTree final : public SplayTree<Config, ZoneAllocated, Zone> {
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public:
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explicit ZoneSplayTree(Zone* zone)
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: SplayTree<Config, ZoneAllocated, Zone>(ASSERT_NOTNULL(zone)) {}
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~ZoneSplayTree() {
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// Reset the root to avoid unneeded iteration over all tree nodes
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// in the destructor. For a zone-allocated tree, nodes will be
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// freed by the Zone.
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SplayTree<Config, ZoneAllocated, Zone>::ResetRoot();
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}
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};
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} // namespace dart
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#endif // RUNTIME_VM_SPLAY_TREE_H_
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