From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/util/Identifier.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 js/src/util/Identifier.h (limited to 'js/src/util/Identifier.h') diff --git a/js/src/util/Identifier.h b/js/src/util/Identifier.h new file mode 100644 index 0000000000..1deb407571 --- /dev/null +++ b/js/src/util/Identifier.h @@ -0,0 +1,57 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * vim: set ts=8 sts=2 et sw=2 tw=80: + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef util_Identifier_h +#define util_Identifier_h + +#include // size_t + +#include "js/TypeDecls.h" // JS::Latin1Char + +class JSLinearString; + +namespace js { + +/* + * True if str consists of an IdentifierStart character, followed by one or + * more IdentifierPart characters, i.e. it matches the IdentifierName production + * in the language spec. + * + * This returns true even if str is a keyword like "if". + */ +bool IsIdentifier(JSLinearString* str); + +/* + * As above, but taking chars + length. + */ +bool IsIdentifier(const JS::Latin1Char* chars, size_t length); +bool IsIdentifier(const char16_t* chars, size_t length); + +/* + * ASCII variant with known length. + */ +bool IsIdentifierASCII(char c); +bool IsIdentifierASCII(char c1, char c2); + +/* + * True if str consists of an optional leading '#', followed by an + * IdentifierStart character, followed by one or more IdentifierPart characters, + * i.e. it matches the IdentifierName production or PrivateIdentifier production + * in the language spec. + * + * This returns true even if str is a keyword like "if". + */ +bool IsIdentifierNameOrPrivateName(JSLinearString* str); + +/* + * As above, but taking chars + length. + */ +bool IsIdentifierNameOrPrivateName(const JS::Latin1Char* chars, size_t length); +bool IsIdentifierNameOrPrivateName(const char16_t* chars, size_t length); + +} /* namespace js */ + +#endif /* util_Identifier_h */ -- cgit v1.2.3