| 1 | // Copyright (C) 2024 Jarek Kobus |
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| 2 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 3 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 4 | |
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| 5 | #include "conditional.h" |
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| 6 | |
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| 7 | QT_BEGIN_NAMESPACE |
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| 8 | |
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| 9 | namespace Tasking { |
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| 10 | |
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| 11 | static Group conditionRecipe(const Storage<bool> &bodyExecutedStorage, const ConditionData &condition) |
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| 12 | { |
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| 13 | const auto onSetup = [bodyExecutedStorage] { |
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| 14 | return *bodyExecutedStorage ? SetupResult::StopWithSuccess : SetupResult::Continue; |
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| 15 | }; |
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| 16 | |
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| 17 | const auto onBodyDone = [bodyExecutedStorage] { *bodyExecutedStorage = true; }; |
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| 18 | |
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| 19 | const Group bodyTask { condition.m_body, onGroupDone(handler: onBodyDone) }; |
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| 20 | |
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| 21 | return { |
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| 22 | onGroupSetup(handler: onSetup), |
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| 23 | condition.m_condition ? Group{ !*condition.m_condition || bodyTask } : bodyTask |
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| 24 | }; |
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| 25 | } |
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| 26 | |
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| 27 | static ExecutableItem conditionsRecipe(const QList<ConditionData> &conditions) |
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| 28 | { |
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| 29 | Storage<bool> bodyExecutedStorage; |
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| 30 | |
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| 31 | GroupItems recipes; |
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| 32 | for (const ConditionData &condition : conditions) |
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| 33 | recipes << conditionRecipe(bodyExecutedStorage, condition); |
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| 34 | |
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| 35 | return Group { bodyExecutedStorage, recipes }; |
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| 36 | } |
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| 37 | |
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| 38 | ThenItem::operator ExecutableItem() const |
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| 39 | { |
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| 40 | return conditionsRecipe(conditions: m_conditions); |
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| 41 | } |
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| 42 | |
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| 43 | ThenItem::ThenItem(const If &ifItem, const Then &thenItem) |
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| 44 | : m_conditions{{.m_condition: ifItem.m_condition, .m_body: thenItem.m_body}} |
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| 45 | {} |
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| 46 | |
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| 47 | ThenItem::ThenItem(const ElseIfItem &elseIfItem, const Then &thenItem) |
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| 48 | : m_conditions(elseIfItem.m_conditions) |
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| 49 | { |
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| 50 | m_conditions.append(t: {.m_condition: elseIfItem.m_nextCondition, .m_body: thenItem.m_body}); |
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| 51 | } |
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| 52 | |
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| 53 | ElseItem::operator ExecutableItem() const |
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| 54 | { |
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| 55 | return conditionsRecipe(conditions: m_conditions); |
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| 56 | } |
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| 57 | |
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| 58 | ElseItem::ElseItem(const ThenItem &thenItem, const Else &elseItem) |
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| 59 | : m_conditions(thenItem.m_conditions) |
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| 60 | { |
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| 61 | m_conditions.append(t: {.m_condition: {}, .m_body: elseItem.m_body}); |
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| 62 | } |
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| 63 | |
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| 64 | ElseIfItem::ElseIfItem(const ThenItem &thenItem, const ElseIf &elseIfItem) |
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| 65 | : m_conditions(thenItem.m_conditions) |
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| 66 | , m_nextCondition(elseIfItem.m_condition) |
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| 67 | {} |
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| 68 | |
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| 69 | ThenItem operator>>(const If &ifItem, const Then &thenItem) |
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| 70 | { |
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| 71 | return {ifItem, thenItem}; |
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| 72 | } |
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| 73 | |
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| 74 | ThenItem operator>>(const ElseIfItem &elseIfItem, const Then &thenItem) |
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| 75 | { |
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| 76 | return {elseIfItem, thenItem}; |
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| 77 | } |
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| 78 | |
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| 79 | ElseIfItem operator>>(const ThenItem &thenItem, const ElseIf &elseIfItem) |
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| 80 | { |
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| 81 | return {thenItem, elseIfItem}; |
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| 82 | } |
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| 83 | |
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| 84 | ElseItem operator>>(const ThenItem &thenItem, const Else &elseItem) |
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| 85 | { |
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| 86 | return {thenItem, elseItem}; |
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| 87 | } |
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| 88 | |
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| 89 | } // namespace Tasking |
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| 90 | |
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| 91 | QT_END_NAMESPACE |
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| 92 | |
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