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// Copyright (C) 2026 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
// Qt-Security score:significant
#include "qqmljscontextualtypes_p.h"
#include "qqmljsutils_p.h"
QT_BEGIN_NAMESPACE
namespace QQmlJS {
void ContextualTypes::setType(const QString &name, const ContextualType &type)
{
const auto it = m_types.find(name);
auto insertName = [this, &name, &type]() {
if (!name.startsWith(u'$')) {
if (!m_names.contains(type.scope, name))
m_names.insert(type.scope, name);
}
};
if (const QString fileSelector = QQmlJSUtils::fileSelectorFor(type.scope);
!fileSelector.isEmpty()) {
setFileSelectedType(fileSelector, name, type);
// If a non-selected variant was already added, we're done;
// file-selected variants don't replace a main entry. Otherwise we still
// need to add the type, in case _all_ variants use file selectors
// this assumes that at least one file selector will actually be active
if (it == m_types.end()) {
m_types.insert(name, type);
insertName();
}
return;
}
if (it == m_types.end()) {
m_types.insert(name, type);
insertName();
return;
}
if (it->m_precedence < type.m_precedence)
return;
// The old scope keeps its (scope, name) link in m_names only if it remains
// referenced via m_fileSelectedTypes for the same name.
const QQmlJSScope::ConstPtr oldScope = it->scope;
*it = type;
const bool isOldScopeStillRefencedAsFileSelected = [&]() {
for (auto [it, end] = m_fileSelectedTypes.equal_range(name); it != end; ++it) {
if (it->type.scope == oldScope)
return true;
}
return false;
}();
if (!isOldScopeStillRefencedAsFileSelected)
m_names.remove(oldScope, name);
insertName();
}
void ContextualTypes::setFileSelectedType(const QString &fileSelector, const QString &name,
const ContextualType &type)
{
auto insertName = [this, &name, &type]() {
if (!name.startsWith(u'$')) {
if (!m_names.contains(type.scope, name))
m_names.insert(type.scope, name);
}
};
auto [it, end] = m_fileSelectedTypes.equal_range(name);
auto match = std::find_if(it, end, [&fileSelector](const FileSelectedType &entry) {
return entry.fileSelector == fileSelector;
});
if (match == end) {
insertName();
m_fileSelectedTypes.insert(name, { fileSelector, type });
return;
}
if (match->type.m_precedence < type.m_precedence)
return;
m_names.remove(type.scope, name);
*it = { fileSelector, type };
insertName();
}
std::optional<ContextualType>
ContextualTypes::fileSelectedTypeFor(const QString &name, const QString &selector) const
{
Q_ASSERT(!selector.isEmpty());
for (auto [it, end] = m_fileSelectedTypes.equal_range(name); it != end; ++it) {
if (it->fileSelector == selector)
return it->type;
}
return std::nullopt;
}
FileSelectorInfo ContextualTypes::fileSelectorInfoFor(const QQmlJSScope::ConstPtr &scope) const
{
FileSelectorInfo result;
for (auto [it, end] = m_names.equal_range(scope); it != end; ++it) {
if (auto mainTypeIt = m_types.find(*it); mainTypeIt != m_types.end())
result.mainType = mainTypeIt->scope;
for (auto [it2, end2] = m_fileSelectedTypes.equal_range(*it); it2 != end2; ++it2) {
result.fileSelectedTypes.append(*it2);
}
}
return result;
}
} // namespace QQmlJS
QT_END_NAMESPACE