1/*
2 * Copyright 2021 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "modules/skunicode/src/SkUnicode_icu.h"
9
10#include <memory>
11#include <unicode/ubrk.h>
12#include <unicode/utypes.h>
13#include <utility>
14
15#define SKICU_FUNC(funcname) funcname,
16
17// ubrk_clone added as draft in ICU69 and Android API 31 (first ICU NDK).
18// ubrk_safeClone deprecated in ICU69 and not exposed by Android.
19template<typename...> using void_t = void;
20template<typename T, typename = void>
21struct SkUbrkClone {
22    static UBreakIterator* clone(T bi, UErrorCode* status) {
23        return ubrk_safeClone(bi, nullptr, nullptr, status);
24    }
25};
26template<typename T>
27struct SkUbrkClone<T, void_t<decltype(ubrk_clone(std::declval<T>(), nullptr))>> {
28    static UBreakIterator* clone(T bi, UErrorCode* status) {
29        return ubrk_clone(bi, status);
30    }
31};
32
33std::unique_ptr<SkICULib> SkLoadICULib() {
34
35    return std::make_unique<SkICULib>(SkICULib{
36        SKICU_EMIT_FUNCS
37
38        &SkUbrkClone<const UBreakIterator*>::clone,
39        nullptr,
40    });
41}
42