| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0 |
| 3 | |
| 4 | #include "qqmljsstorageinitializer_p.h" |
| 5 | |
| 6 | QT_BEGIN_NAMESPACE |
| 7 | |
| 8 | /*! |
| 9 | * \internal |
| 10 | * \class QQmlJSStorageInitializer |
| 11 | * |
| 12 | * The QQmlJSStorageInitializer is a compile pass that initializes the storage |
| 13 | * for all register contents. |
| 14 | * |
| 15 | * QQmlJSStorageInitializer does not have to use the byte code at all but |
| 16 | * operates only on the annotations and the function description. |
| 17 | */ |
| 18 | |
| 19 | QQmlJSCompilePass::BlocksAndAnnotations QQmlJSStorageInitializer::run(Function *function) |
| 20 | { |
| 21 | m_function = function; |
| 22 | |
| 23 | if (QQmlJSRegisterContent &returnType = function->returnType; returnType.isValid()) { |
| 24 | if (const QQmlJSScope::ConstPtr stored |
| 25 | = m_typeResolver->storedType(type: returnType.containedType())) { |
| 26 | m_pool->storeType(content: returnType, stored); |
| 27 | } else { |
| 28 | addError(QStringLiteral("Cannot store the return type %1.") |
| 29 | .arg(a: returnType.containedType()->internalName())); |
| 30 | return {}; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | const auto storeRegister = [&](QQmlJSRegisterContent &content) { |
| 35 | if (!content.isValid() || !content.storage().isNull()) |
| 36 | return; |
| 37 | |
| 38 | const QQmlJSScope::ConstPtr original = m_typeResolver->originalContainedType(container: content); |
| 39 | if (const QQmlJSScope::ConstPtr originalStored = m_typeResolver->storedType(type: original)) { |
| 40 | m_pool->storeType(content, stored: originalStored); |
| 41 | } else { |
| 42 | addError(QStringLiteral("Cannot store type %1.").arg(a: original->internalName())); |
| 43 | return; |
| 44 | } |
| 45 | |
| 46 | const QQmlJSScope::ConstPtr contentContained = content.containedType(); |
| 47 | const QQmlJSScope::ConstPtr adjustedStored = m_typeResolver->storedType(type: contentContained); |
| 48 | if (!adjustedStored) { |
| 49 | addError(QStringLiteral("Cannot store type %1.") |
| 50 | .arg(a: contentContained->internalName())); |
| 51 | return; |
| 52 | } |
| 53 | |
| 54 | if (!m_typeResolver->adjustTrackedType(tracked: content.storage(), conversion: adjustedStored)) { |
| 55 | addError(QStringLiteral("Cannot adjust stored type for %1 to %2.") |
| 56 | .arg(args: contentContained->internalName(), args: adjustedStored->internalName())); |
| 57 | } |
| 58 | }; |
| 59 | |
| 60 | const auto storeRegisters = [&](VirtualRegisters ®isters) { |
| 61 | for (auto j = registers.begin(), jEnd = registers.end(); j != jEnd; ++j) |
| 62 | storeRegister(j.value().content); |
| 63 | }; |
| 64 | |
| 65 | storeRegister(function->qmlScope); |
| 66 | |
| 67 | for (QQmlJSRegisterContent &argument : function->argumentTypes) { |
| 68 | Q_ASSERT(argument.isValid()); |
| 69 | storeRegister(argument); |
| 70 | } |
| 71 | |
| 72 | for (QQmlJSRegisterContent &argument : function->registerTypes) { |
| 73 | Q_ASSERT(argument.isValid()); |
| 74 | storeRegister(argument); |
| 75 | } |
| 76 | |
| 77 | for (auto i = m_annotations.begin(), iEnd = m_annotations.end(); i != iEnd; ++i) { |
| 78 | storeRegister(i->second.changedRegister); |
| 79 | storeRegisters(i->second.typeConversions); |
| 80 | storeRegisters(i->second.readRegisters); |
| 81 | } |
| 82 | |
| 83 | return { .basicBlocks: std::move(m_basicBlocks), .annotations: std::move(m_annotations) }; |
| 84 | } |
| 85 | |
| 86 | QT_END_NAMESPACE |
| 87 |