73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Optional.h>
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#include <AK/Result.h>
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#include <LibJS/Runtime/Object.h>
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#include <LibRegex/Regex.h>
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namespace JS {
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ThrowCompletionOr<NonnullGCPtr<RegExpObject>> regexp_create(VM&, Value pattern, Value flags);
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ThrowCompletionOr<NonnullGCPtr<RegExpObject>> regexp_alloc(VM&, FunctionObject& new_target);
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Result<regex::RegexOptions<ECMAScriptFlags>, ByteString> regex_flags_from_string(StringView flags);
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struct ParseRegexPatternError {
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ByteString error;
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};
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ErrorOr<ByteString, ParseRegexPatternError> parse_regex_pattern(StringView pattern, bool unicode, bool unicode_sets);
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ThrowCompletionOr<ByteString> parse_regex_pattern(VM& vm, StringView pattern, bool unicode, bool unicode_sets);
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class RegExpObject : public Object {
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JS_OBJECT(RegExpObject, Object);
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JS_DECLARE_ALLOCATOR(RegExpObject);
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public:
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// JS regexps are all 'global' by default as per our definition, but the "global" flag enables "stateful".
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// FIXME: Enable 'BrowserExtended' only if in a browser context.
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static constexpr regex::RegexOptions<ECMAScriptFlags> default_flags {
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(regex::ECMAScriptFlags)regex::AllFlags::SingleMatch
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| (regex::ECMAScriptFlags)regex::AllFlags::Global
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| (regex::ECMAScriptFlags)regex::AllFlags::SkipTrimEmptyMatches
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| regex::ECMAScriptFlags::BrowserExtended
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};
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static NonnullGCPtr<RegExpObject> create(Realm&);
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static NonnullGCPtr<RegExpObject> create(Realm&, Regex<ECMA262> regex, ByteString pattern, ByteString flags);
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ThrowCompletionOr<NonnullGCPtr<RegExpObject>> regexp_initialize(VM&, Value pattern, Value flags);
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ByteString escape_regexp_pattern() const;
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virtual void initialize(Realm&) override;
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virtual ~RegExpObject() override = default;
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ByteString const& pattern() const { return m_pattern; }
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ByteString const& flags() const { return m_flags; }
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Regex<ECMA262> const& regex() { return *m_regex; }
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Regex<ECMA262> const& regex() const { return *m_regex; }
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Realm& realm() { return *m_realm; }
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Realm const& realm() const { return *m_realm; }
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bool legacy_features_enabled() const { return m_legacy_features_enabled; }
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void set_legacy_features_enabled(bool legacy_features_enabled) { m_legacy_features_enabled = legacy_features_enabled; }
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void set_realm(Realm& realm) { m_realm = &realm; }
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private:
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RegExpObject(Object& prototype);
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RegExpObject(Regex<ECMA262> regex, ByteString pattern, ByteString flags, Object& prototype);
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virtual void visit_edges(Visitor&) override;
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ByteString m_pattern;
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ByteString m_flags;
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bool m_legacy_features_enabled { false }; // [[LegacyFeaturesEnabled]]
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// Note: This is initialized in RegExpAlloc, but will be non-null afterwards
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GCPtr<Realm> m_realm; // [[Realm]]
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Optional<Regex<ECMA262>> m_regex;
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};
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}
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