8eaf64ae12
The implicit SkTCopyOnFirstWrite copy-ctor and assignment operator are incorrect: fObj must point to the local copy, not to the source copy (when a copy has been made). Add corrected explicit copy (and move) ctor + assignment operator. Also add a get() helper to facilitate rawptr access. Change-Id: Ie3983e12c04eae4f32c40e3e267618cf02008c20 Reviewed-on: https://skia-review.googlesource.com/120442 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Florin Malita <fmalita@chromium.org>
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
/*
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* Copyright 2018 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkTLazy.h"
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#include "Test.h"
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DEF_TEST(TLazy_copy, r) {
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SkTLazy<int> lazy;
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REPORTER_ASSERT(r, !lazy.isValid());
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REPORTER_ASSERT(r, lazy.getMaybeNull() == nullptr);
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{
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SkTLazy<int> lazy_copy(lazy);
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REPORTER_ASSERT(r, !lazy_copy.isValid());
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REPORTER_ASSERT(r, lazy_copy.getMaybeNull() == nullptr);
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}
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lazy.init(42);
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REPORTER_ASSERT(r, lazy.isValid());
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REPORTER_ASSERT(r, 42 == *lazy.get());
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{
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SkTLazy<int> lazy_copy(lazy);
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REPORTER_ASSERT(r, lazy_copy.isValid());
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REPORTER_ASSERT(r, 42 == *lazy_copy.get());
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REPORTER_ASSERT(r, lazy.get() != lazy_copy.get());
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}
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}
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DEF_TEST(TCopyOnFirstWrite_copy, r) {
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const int v = 42;
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SkTCopyOnFirstWrite<int> cow(v);
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REPORTER_ASSERT(r, 42 == *cow);
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REPORTER_ASSERT(r, &v == cow.get());
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{
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SkTCopyOnFirstWrite<int> cow_copy(cow);
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REPORTER_ASSERT(r, 42 == *cow_copy);
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REPORTER_ASSERT(r, &v == cow_copy.get());
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REPORTER_ASSERT(r, cow.get() == cow_copy.get());
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*cow_copy.writable() = 43;
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REPORTER_ASSERT(r, 42 == *cow);
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REPORTER_ASSERT(r, &v == cow.get());
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REPORTER_ASSERT(r, 43 == *cow_copy);
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REPORTER_ASSERT(r, &v != cow_copy.get());
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REPORTER_ASSERT(r, cow.get() != cow_copy.get());
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}
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*cow.writable() = 43;
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REPORTER_ASSERT(r, 43 == *cow);
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REPORTER_ASSERT(r, &v != cow.get());
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{
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SkTCopyOnFirstWrite<int> cow_copy(cow);
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REPORTER_ASSERT(r, 43 == *cow_copy);
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REPORTER_ASSERT(r, &v != cow_copy.get());
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REPORTER_ASSERT(r, cow.get() != cow_copy.get());
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*cow_copy.writable() = 44;
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REPORTER_ASSERT(r, 43 == *cow);
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REPORTER_ASSERT(r, &v != cow.get());
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REPORTER_ASSERT(r, 44 == *cow_copy);
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REPORTER_ASSERT(r, &v != cow_copy.get());
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REPORTER_ASSERT(r, cow.get() != cow_copy.get());
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}
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}
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