67 lines
2.7 KiB
Diff
67 lines
2.7 KiB
Diff
From 911bdcd8cc5475be4ec4228cfbc85fc38f52857e Mon Sep 17 00:00:00 2001
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From: Stephan Hartmann <stha09@googlemail.com>
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Date: Wed, 27 May 2020 10:00:41 +0000
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Subject: [PATCH] GCC: make base::{flat_map,flat_tree} move assignement operators noexcept
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Move assigment operator in ui::ColorSet is noexcept. Because this
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class has a member of type base::flat_map, move assignment operators
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of base::flat_map and base::flat_tree must be noexcept too.
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base::flat_tree noexcept is conditional to avoid build failure with
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NaCl.
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Otherwise GCC fails like this:
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../../ui/color/color_set.cc:14:11: error: function
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'ui::ColorSet& ui::ColorSet::operator=(ui::ColorSet&&)' defaulted on its
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redeclaration with an exception-specification that differs from the
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implicit exception-specification ''
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14 | ColorSet& ColorSet::operator=(ColorSet&&) noexcept = default;
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| ^~~~~~~~
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Bug: 819294
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Change-Id: I10ce31851effc9ce78f2b5cbbb7148c339f065a7
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Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2179245
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Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
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Reviewed-by: Daniel Cheng <dcheng@chromium.org>
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Cr-Commit-Position: refs/heads/master@{#772175}
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---
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diff --git a/base/containers/flat_map.h b/base/containers/flat_map.h
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index ed82c5d..1af6b40 100644
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--- a/base/containers/flat_map.h
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+++ b/base/containers/flat_map.h
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@@ -202,7 +202,7 @@
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~flat_map() = default;
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flat_map& operator=(const flat_map&) = default;
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- flat_map& operator=(flat_map&&) = default;
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+ flat_map& operator=(flat_map&&) noexcept = default;
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// Takes the first if there are duplicates in the initializer list.
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flat_map& operator=(std::initializer_list<value_type> ilist);
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diff --git a/base/containers/flat_tree.h b/base/containers/flat_tree.h
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index 9412ff6..ce6e92b 100644
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--- a/base/containers/flat_tree.h
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+++ b/base/containers/flat_tree.h
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@@ -125,7 +125,8 @@
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// Assume that move assignment invalidates iterators and references.
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flat_tree& operator=(const flat_tree&);
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- flat_tree& operator=(flat_tree&&);
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+ flat_tree& operator=(flat_tree&&) noexcept(
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+ std::is_nothrow_move_assignable<underlying_type>::value);
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// Takes the first if there are duplicates in the initializer list.
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flat_tree& operator=(std::initializer_list<value_type> ilist);
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@@ -518,7 +519,9 @@
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const flat_tree&) -> flat_tree& = default;
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template <class Key, class Value, class GetKeyFromValue, class KeyCompare>
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-auto flat_tree<Key, Value, GetKeyFromValue, KeyCompare>::operator=(flat_tree &&)
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+auto flat_tree<Key, Value, GetKeyFromValue, KeyCompare>::
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+operator=(flat_tree&&) noexcept(
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+ std::is_nothrow_move_assignable<underlying_type>::value)
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-> flat_tree& = default;
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template <class Key, class Value, class GetKeyFromValue, class KeyCompare>
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