| 1559 | } |
| 1560 | |
| 1561 | Visitor::Visitor(CXTranslationUnit tu, CXFile file, |
| 1562 | const IncludeFileContexts& includes, const bool update) |
| 1563 | : m_file(file) |
| 1564 | , m_includes(includes) |
| 1565 | , m_parentContext(nullptr) |
| 1566 | , m_update(update) |
| 1567 | { |
| 1568 | CXCursor tuCursor = clang_getTranslationUnitCursor(tu); |
| 1569 | auto top = includes[file]; |
| 1570 | |
| 1571 | // when updating, this contains child contexts that should be kept alive |
| 1572 | // even when they are not part of the AST anymore |
| 1573 | // this is required for some assistants, such as the signature assistant |
| 1574 | QSet<DUContext*> keepAliveContexts; |
| 1575 | { |
| 1576 | DUChainReadLocker lock; |
| 1577 | const auto problems = top->problems(); |
| 1578 | for (const auto& problem : problems) { |
| 1579 | const auto& desc = problem->description(); |
| 1580 | if (desc.startsWith(QLatin1String("Return type of out-of-line definition of '")) |
| 1581 | && desc.endsWith(QLatin1String("' differs from that in the declaration"))) { |
| 1582 | auto ctx = top->findContextAt(problem->range().start); |
| 1583 | // keep the context and its parents alive |
| 1584 | // this also keeps declarations in this context alive |
| 1585 | while (ctx) { |
| 1586 | keepAliveContexts << ctx; |
| 1587 | ctx = ctx->parentContext(); |
| 1588 | } |
| 1589 | } |
| 1590 | } |
| 1591 | } |
| 1592 | |
| 1593 | CurrentContext parent(top, keepAliveContexts); |
| 1594 | m_parentContext = &parent; |
| 1595 | clang_visitChildren(tuCursor, &visitCursor, this); |
| 1596 | |
| 1597 | if (m_update) { |
| 1598 | DUChainWriteLocker lock; |
| 1599 | top->deleteUsesRecursively(); |
| 1600 | } |
| 1601 | for (const auto &contextUses : m_uses) { |
| 1602 | for (const auto &cursor : contextUses.second) { |
| 1603 | auto referenced = referencedCursor(cursor); |
| 1604 | if (clang_Cursor_isNull(referenced)) { |
| 1605 | continue; |
| 1606 | } |
| 1607 | // first, try the canonical referenced cursor |
| 1608 | // this is important to get the correct function declaration e.g. |
| 1609 | auto canonicalReferenced = clang_getCanonicalCursor(referenced); |
| 1610 | auto used = findDeclaration(canonicalReferenced); |
| 1611 | |
| 1612 | if (!used) { |
| 1613 | // if the above failed, try the non-canonicalized version as a fallback |
| 1614 | // this is required for friend declarations that occur before |
| 1615 | // the real declaration. there, the canonical cursor points to |
| 1616 | // the friend declaration which is not what we are looking for |
| 1617 | used = findDeclaration(referenced); |
| 1618 | } |
nothing calls this directly
no test coverage detected