/* -*- 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/. */ // IWYU pragma: private, include "nsString.h"
/** * nsTSubstringTuple * * Represents a tuple of string fragments. Built as a recursive binary tree. * It is used to implement the concatenation of two or more string objects. * * NOTE: This class is a private implementation detail and should never be * referenced outside the string code.
*/ template <typename T> class MOZ_TEMPORARY_CLASS nsTSubstringTuple { public: typedef T char_type; typedef nsCharTraits<char_type> char_traits;
nsTSubstringTuple(const self_type& aHead, const base_string_type* aStrB)
: mHead(&aHead),
mFragA(nullptr), // this fragment is ignored when aHead != nullptr
mFragB(aStrB) {}
/** * writes the aggregate string to the given buffer. bufLen is assumed * to be equal to or greater than the value returned by the Length() * method. the string written to |buf| is not null-terminated.
*/ void WriteTo(char_type* aBuf, size_type aBufLen) const;
/** * returns true if this tuple is dependent on (i.e., overlapping with) * the given char sequence.
*/ bool IsDependentOn(const char_type* aStart, const char_type* aEnd) const;
/** * returns a pair of the results of IsDependentOn() and Length(). This is more * efficient than calling both functions subsequently, as this traverses the * tree only once.
*/
std::pair<bool, size_type> IsDependentOnWithLength( const char_type* aStart, const char_type* aEnd) const;
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