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4028fec3b5
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>
86 lines
5.2 KiB
C++
86 lines
5.2 KiB
C++
// Copyright (c) 2015, 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_REGEXP_BYTECODES_H_
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#define RUNTIME_VM_REGEXP_BYTECODES_H_
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namespace dart {
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const int BYTECODE_MASK = 0xff;
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// The first argument is packed in with the byte code in one word, but so it
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// has 24 bits, but it can be positive and negative so only use 23 bits for
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// positive values.
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const unsigned int MAX_FIRST_ARG = 0x7fffffu;
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const int BYTECODE_SHIFT = 8;
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// clang-format off
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#define BYTECODE_ITERATOR(V) \
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V(BREAK, 0, 4) /* bc8 */ \
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V(PUSH_CP, 1, 4) /* bc8 pad24 */ \
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V(PUSH_BT, 2, 8) /* bc8 pad24 offset32 */ \
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V(PUSH_REGISTER, 3, 4) /* bc8 reg_idx24 */ \
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V(SET_REGISTER_TO_CP, 4, 8) /* bc8 reg_idx24 offset32 */ \
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V(SET_CP_TO_REGISTER, 5, 4) /* bc8 reg_idx24 */ \
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V(SET_REGISTER_TO_SP, 6, 4) /* bc8 reg_idx24 */ \
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V(SET_SP_TO_REGISTER, 7, 4) /* bc8 reg_idx24 */ \
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V(SET_REGISTER, 8, 8) /* bc8 reg_idx24 value32 */ \
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V(ADVANCE_REGISTER, 9, 8) /* bc8 reg_idx24 value32 */ \
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V(POP_CP, 10, 4) /* bc8 pad24 */ \
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V(POP_BT, 11, 4) /* bc8 pad24 */ \
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V(POP_REGISTER, 12, 4) /* bc8 reg_idx24 */ \
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V(FAIL, 13, 4) /* bc8 pad24 */ \
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V(SUCCEED, 14, 4) /* bc8 pad24 */ \
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V(ADVANCE_CP, 15, 4) /* bc8 offset24 */ \
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V(GOTO, 16, 8) /* bc8 pad24 addr32 */ \
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V(LOAD_CURRENT_CHAR, 17, 8) /* bc8 offset24 addr32 */ \
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V(LOAD_CURRENT_CHAR_UNCHECKED, 18, 4) /* bc8 offset24 */ \
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V(LOAD_2_CURRENT_CHARS, 19, 8) /* bc8 offset24 addr32 */ \
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V(LOAD_2_CURRENT_CHARS_UNCHECKED, 20, 4) /* bc8 offset24 */ \
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V(LOAD_4_CURRENT_CHARS, 21, 8) /* bc8 offset24 addr32 */ \
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V(LOAD_4_CURRENT_CHARS_UNCHECKED, 22, 4) /* bc8 offset24 */ \
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V(CHECK_4_CHARS, 23, 12) /* bc8 pad24 uint32 addr32 */ \
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V(CHECK_CHAR, 24, 8) /* bc8 pad8 uint16 addr32 */ \
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V(CHECK_NOT_4_CHARS, 25, 12) /* bc8 pad24 uint32 addr32 */ \
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V(CHECK_NOT_CHAR, 26, 8) /* bc8 pad8 uint16 addr32 */ \
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V(AND_CHECK_4_CHARS, 27, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
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V(AND_CHECK_CHAR, 28, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
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V(AND_CHECK_NOT_4_CHARS, 29, 16) /* bc8 pad24 uint32 uint32 addr32 */ \
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V(AND_CHECK_NOT_CHAR, 30, 12) /* bc8 pad8 uint16 uint32 addr32 */ \
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V(MINUS_AND_CHECK_NOT_CHAR, 31, 12) /* bc8 pad8 uc16 uc16 uc16 addr32 */ \
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V(CHECK_CHAR_IN_RANGE, 32, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
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V(CHECK_CHAR_NOT_IN_RANGE, 33, 12) /* bc8 pad24 uc16 uc16 addr32 */ \
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V(CHECK_BIT_IN_TABLE, 34, 24) /* bc8 pad24 addr32 bits128 */ \
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V(CHECK_LT, 35, 8) /* bc8 pad8 uc16 addr32 */ \
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V(CHECK_GT, 36, 8) /* bc8 pad8 uc16 addr32 */ \
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V(CHECK_NOT_BACK_REF, 37, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_NOT_BACK_REF_NO_CASE, 38, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_NOT_BACK_REF_NO_CASE_UNICODE, 39, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_NOT_BACK_REF_BACKWARD, 40, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_NOT_BACK_REF_NO_CASE_BACKWARD, 41, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_NOT_BACK_REF_NO_CASE_UNICODE_BACKWARD, 42, 8) /*bc8 reg_idx24 addr32*/ \
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V(CHECK_NOT_REGS_EQUAL, 43, 12) /* bc8 regidx24 reg_idx32 addr32 */ \
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V(CHECK_REGISTER_LT, 44, 12) /* bc8 reg_idx24 value32 addr32 */ \
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V(CHECK_REGISTER_GE, 45, 12) /* bc8 reg_idx24 value32 addr32 */ \
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V(CHECK_REGISTER_EQ_POS, 46, 8) /* bc8 reg_idx24 addr32 */ \
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V(CHECK_AT_START, 47, 8) /* bc8 pad24 addr32 */ \
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V(CHECK_NOT_AT_START, 48, 8) /* bc8 offset24 addr32 */ \
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V(CHECK_GREEDY, 49, 8) /* bc8 pad24 addr32 */ \
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V(ADVANCE_CP_AND_GOTO, 50, 8) /* bc8 offset24 addr32 */ \
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V(SET_CURRENT_POSITION_FROM_END, 51, 4) /* bc8 idx24 */
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// clang-format on
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#define DECLARE_BYTECODES(name, code, length) static const int BC_##name = code;
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BYTECODE_ITERATOR(DECLARE_BYTECODES)
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#undef DECLARE_BYTECODES
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#define DECLARE_BYTECODE_LENGTH(name, code, length) \
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static const int BC_##name##_LENGTH = length;
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BYTECODE_ITERATOR(DECLARE_BYTECODE_LENGTH)
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#undef DECLARE_BYTECODE_LENGTH
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} // namespace dart
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#endif // RUNTIME_VM_REGEXP_BYTECODES_H_
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