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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <array>
#include <cstdint>
#include <vector>
#include "base/containers/auto_spanification_helper.h"
#include "base/containers/span.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/raw_span.h"
#include "base/numerics/safe_conversions.h"
// Expected rewrite:
// base::span<T> get()
template <typename T>
base::span<T> get() {
// Expected rewrite:
// return {};
return {};
}
void fct() {
int index = 1;
int value = 11;
std::vector<int> ctn1 = {1, 2, 3, 4};
std::array<int, 3> ctn2 = {5, 6, 7};
// Expected rewrite:
// base::span<int> aa = {};
base::span<int> aa = {};
// Expected rewrite:
// base::span<int> bb = {};
base::span<int> bb = {};
// Expected rewrite:
// base::span<int> cc = {};
base::span<int> cc = {};
// Expected rewrite:
// aa = ctn1;
aa = ctn1;
// Expected rewrite:
// bb = ctn2;
bb = ctn2;
bb = aa;
cc = bb;
cc[index] = value; // Buffer usage, leads c to be rewritten.
// Expected rewrite:
// base::raw_span<int> dd = {};
base::raw_span<int> dd = {};
dd = cc;
dd[index] = value; // Buffer usage, leads d to be rewritten.
// Expected rewrite:
// base::span<int> ee = {};
base::span<int> ee = {};
// Expected rewrite:
// ee = dd;
ee = dd;
// Expected rewrite:
// base::postIncrementSpan(ee);
base::postIncrementSpan(ee); // Buffer usage, leads e to be rewritten.
// Expected rewrite:
// base::span<int> ff = {};
base::span<int> ff = {};
ff = get<int>();
// Expected rewrite:
// base::preIncrementSpan(ff);
base::preIncrementSpan(ff); // Leads to ff being rewritten.
// Exptected rewrite:
// base::span<int> gg = {};
base::span<int> gg = {};
bool condition = true;
// Expected rewrite:
// gg = (condition) ? ctn1 : ctn2;
gg = (condition) ? ctn1 : ctn2;
// Buffer usage, leads gg to be rewritten.
// Expected rewrite:
// gg = gg.subspan(1u);
gg = gg.subspan(1u);
// Buffer usage
// Expected rewrite:
// gg = gg.subspan(base::checked_cast<size_t>(index * 2));
gg = gg.subspan(base::checked_cast<size_t>(index * 2));
}
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