forked from mirrors/gecko-dev
c6b2c5db61
Backed out changeset f17c7565707b (bug 1772006) Backed out changeset c725fe1f5882 (bug 1772006) Backed out changeset d19663161261 (bug 1772006) Backed out changeset b6611ab002d9 (bug 1772006) Backed out changeset 790f42b64af9 (bug 1772006) Backed out changeset 79a734b4e4d9 (bug 1772006) Backed out changeset 42730aae16ea (bug 1772006) Backed out changeset b2542aef3054 (bug 1772006) Backed out changeset 962bfea4a309 (bug 1772006)
124 lines
4 KiB
C++
124 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsTDependentString_h
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#define nsTDependentString_h
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#include "nsTString.h"
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/**
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* nsTDependentString
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*
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* Stores a null-terminated, immutable sequence of characters.
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*
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* Subclass of nsTString that restricts string value to an immutable
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* character sequence. This class does not own its data, so the creator
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* of objects of this type must take care to ensure that a
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* nsTDependentString continues to reference valid memory for the
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* duration of its use.
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*/
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template <typename T>
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class nsTDependentString : public nsTString<T> {
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public:
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typedef nsTDependentString<T> self_type;
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typedef nsTString<T> base_string_type;
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typedef typename base_string_type::string_type string_type;
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typedef typename base_string_type::fallible_t fallible_t;
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typedef typename base_string_type::char_type char_type;
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typedef typename base_string_type::char_traits char_traits;
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typedef
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typename base_string_type::incompatible_char_type incompatible_char_type;
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typedef typename base_string_type::substring_tuple_type substring_tuple_type;
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typedef typename base_string_type::const_iterator const_iterator;
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typedef typename base_string_type::iterator iterator;
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typedef typename base_string_type::comparator_type comparator_type;
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typedef typename base_string_type::const_char_iterator const_char_iterator;
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typedef typename base_string_type::index_type index_type;
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typedef typename base_string_type::size_type size_type;
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// These are only for internal use within the string classes:
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typedef typename base_string_type::DataFlags DataFlags;
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typedef typename base_string_type::ClassFlags ClassFlags;
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public:
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/**
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* constructors
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*/
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nsTDependentString(const char_type* aStart, const char_type* aEnd);
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nsTDependentString(const char_type* aData, size_type aLength)
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: string_type(const_cast<char_type*>(aData), aLength,
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DataFlags::TERMINATED, ClassFlags(0)) {
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this->AssertValidDependentString();
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}
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#if defined(MOZ_USE_CHAR16_WRAPPER)
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template <typename Q = T, typename EnableIfChar16 = mozilla::Char16OnlyT<Q>>
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nsTDependentString(char16ptr_t aData, size_type aLength)
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: nsTDependentString(static_cast<const char16_t*>(aData), aLength) {}
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#endif
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explicit nsTDependentString(const char_type* aData)
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: string_type(const_cast<char_type*>(aData), char_traits::length(aData),
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DataFlags::TERMINATED, ClassFlags(0)) {
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string_type::AssertValidDependentString();
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}
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#if defined(MOZ_USE_CHAR16_WRAPPER)
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template <typename Q = T, typename EnableIfChar16 = mozilla::Char16OnlyT<Q>>
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explicit nsTDependentString(char16ptr_t aData)
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: nsTDependentString(static_cast<const char16_t*>(aData)) {}
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#endif
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nsTDependentString(const string_type& aStr, index_type aStartPos)
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: string_type() {
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Rebind(aStr, aStartPos);
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}
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// Create a nsTDependentSubstring to be bound later
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nsTDependentString() : string_type() {}
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// auto-generated destructor OK
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nsTDependentString(self_type&& aStr) : string_type() {
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Rebind(aStr, /* aStartPos = */ 0);
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aStr.SetToEmptyBuffer();
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}
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explicit nsTDependentString(const self_type& aStr) : string_type() {
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Rebind(aStr, /* aStartPos = */ 0);
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}
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/**
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* allow this class to be bound to a different string...
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*/
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using nsTString<T>::Rebind;
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void Rebind(const char_type* aData) {
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Rebind(aData, char_traits::length(aData));
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}
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void Rebind(const char_type* aStart, const char_type* aEnd);
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void Rebind(const string_type&, index_type aStartPos);
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private:
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// NOT USED
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nsTDependentString(const substring_tuple_type&) = delete;
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self_type& operator=(const self_type& aStr) = delete;
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};
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extern template class nsTDependentString<char>;
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extern template class nsTDependentString<char16_t>;
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#endif
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