forked from qt-creator/qt-creator
f92cb1ad7d
Change-Id: Ie7e7d413ed8cd4af8cdfc88c35fbdd9944d5e8b4 Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
// Copyright (C) 2020 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#pragma once
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#include <functional>
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#if defined(UTILS_LIBRARY)
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# define QTCREATOR_UTILS_EXPORT Q_DECL_EXPORT
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#elif defined(UTILS_STATIC_LIBRARY)
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# define QTCREATOR_UTILS_EXPORT
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#else
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# define QTCREATOR_UTILS_EXPORT Q_DECL_IMPORT
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#endif
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namespace Building {
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class NestId {};
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template <typename Id, typename Arg>
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class IdAndArg
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{
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public:
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IdAndArg(Id, const Arg &arg) : arg(arg) {}
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const Arg arg; // FIXME: Could be const &, but this would currently break bindTo().
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};
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template<typename T1, typename T2>
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struct Arg2
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{
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Arg2(const T1 &a1, const T2 &a2)
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: p1(a1)
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, p2(a2)
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{}
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const T1 p1;
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const T2 p2;
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};
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template<typename T1, typename T2, typename T3>
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struct Arg3
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{
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Arg3(const T1 &a1, const T2 &a2, const T3 &a3)
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: p1(a1)
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, p2(a2)
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, p3(a3)
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{}
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const T1 p1;
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const T2 p2;
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const T3 p3;
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};
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template<typename T1, typename T2, typename T3, typename T4>
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struct Arg4
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{
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Arg4(const T1 &a1, const T2 &a2, const T3 &a3, const T4 &a4)
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: p1(a1)
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, p2(a2)
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, p3(a3)
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, p4(a4)
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{}
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const T1 p1;
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const T2 p2;
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const T3 p3;
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const T4 p4;
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};
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// The main dispatcher
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void doit(auto x, auto id, auto p);
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template <typename X> class BuilderItem
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{
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public:
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// Property setter
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template <typename Id, typename Arg>
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BuilderItem(IdAndArg<Id, Arg> && idarg)
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{
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apply = [&idarg](X *x) { doit(x, Id{}, idarg.arg); };
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}
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// Nested child object
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template <typename Inner>
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BuilderItem(Inner && p)
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{
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apply = [&p](X *x) { doit(x, NestId{}, std::forward<Inner>(p)); };
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}
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std::function<void(X *)> apply;
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};
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#define QTC_DEFINE_BUILDER_SETTER(name, setter) \
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class name##_TAG {}; \
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inline auto name(auto p) { return Building::IdAndArg{name##_TAG{}, p}; } \
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inline void doit(auto x, name##_TAG, auto p) { x->setter(p); }
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#define QTC_DEFINE_BUILDER_SETTER2(name, setter) \
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class name##_TAG {}; \
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inline auto name(auto p1, auto p2) { return Building::IdAndArg{name##_TAG{}, Building::Arg2{p1, p2}}; } \
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inline void doit(auto x, name##_TAG, auto p) { x->setter(p.p1, p.p2); }
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#define QTC_DEFINE_BUILDER_SETTER3(name, setter) \
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class name##_TAG {}; \
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inline auto name(auto p1, auto p2, auto p3) { return Building::IdAndArg{name##_TAG{}, Building::Arg3{p1, p2, p3}}; } \
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inline void doit(auto x, name##_TAG, auto p) { x->setter(p.p1, p.p2, p.p3); }
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#define QTC_DEFINE_BUILDER_SETTER4(name, setter) \
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class name##_TAG {}; \
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inline auto name(auto p1, auto p2, auto p3, auto p4) { return Building::IdAndArg{name##_TAG{}, Building::Arg4{p1, p2, p3, p4}}; } \
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inline void doit(auto x, name##_TAG, auto p) { x->setter(p.p1, p.p2, p.p3, p.p4); }
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} // Building
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