Perf: Improve program performance#508
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deepin-bot[bot] merged 3 commits intoAug 5, 2025
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-- Function parameter should be passed by const reference.
-- Local varible item shadows outer variable -- Class has a constructor with 1 argument that is not explicit.
-- A destructor but is not marked 'override'. -- When dealing with inheritance, deleting a derived class object through a base class pointer without a virtual destructor will lead to problems.
deepin pr auto review代码审查意见：
总体来说，这些修改提高了代码的性能和可读性，是一个好的改进。 |
Reviewer's GuideThis PR optimizes performance and code clarity by converting several functions and constructors to take parameters by const reference, eliminates a local variable shadowing issue in a parsing loop, and strengthens class interfaces by marking single-argument constructors explicit and adding override specifiers to destructors. Class diagram for updated function signatures and constructorsclassDiagram
class DBusDriverInterface {
+void slotProcessChange(qint32 value, const QString &detail)
+void slotProcessEnd(bool success, const QString &msg)
+void slotDownloadProgressChanged(const QStringList &msg)
}
class CmdTool {
+bool parseOemTomlInfo(const QString &filename)
}
class CmdTask {
+CmdTask(const QString &key, const QString &file, const QString &info, GetInfoPool *parent)
+~CmdTask() override
}
class DriverScanner {
+void setDriverList(const QList<DriverInfo *> &lstInfo)
}
class CustomGenerator {
+explicit CustomGenerator(QObject *parent = nullptr)
}
class GenerateTask {
+explicit GenerateTask(DeviceType deviceType)
}
class LoadInfoThread {
+~LoadInfoThread() override
}
class DeviceWidget {
+~DeviceWidget() override
}
class MainWindow {
+void slotSetPage(const QString &page)
}
Class diagram for explicit and override specifier changesclassDiagram
class CustomGenerator {
+explicit CustomGenerator(QObject *parent = nullptr)
}
class GenerateTask {
+explicit GenerateTask(DeviceType deviceType)
}
class CmdTask {
+CmdTask(const QString &key, const QString &file, const QString &info, GetInfoPool *parent)
+~CmdTask() override
}
class LoadInfoThread {
+~LoadInfoThread() override
}
class DeviceWidget {
+~DeviceWidget() override
}
File-Level Changes
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Hey @GongHeng2017 - I've reviewed your changes - here's some feedback:
- Ensure all signal/slot connections (including auto-connect and explicit connect calls) are updated to match the new const-reference parameter signatures to avoid mismatches at runtime.
- Consider choosing a more descriptive loop variable name than tmpInfo to better convey its content and improve readability.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- Ensure all signal/slot connections (including auto-connect and explicit connect calls) are updated to match the new const-reference parameter signatures to avoid mismatches at runtime.
- Consider choosing a more descriptive loop variable name than tmpInfo to better convey its content and improve readability.
## Individual Comments
### Comment 1
<location> `deepin-devicemanager/src/DriverControl/DBusDriverInterface.cpp:116` </location>
<code_context>
}
-void DBusDriverInterface::slotProcessChange(qint32 value, QString detail)
+void DBusDriverInterface::slotProcessChange(qint32 value, const QString &detail)
{
emit processChange(value, detail);
</code_context>
<issue_to_address>
Passing QString by const reference is more efficient.
Suggested implementation:
```cpp
void DBusDriverInterface::slotProcessEnd(bool success, const QString &msg)
```
```cpp
void DBusDriverInterface::slotProcessEnd(bool success, const QString &msg)
{
if (success) {
emit processChange(100, "");
}
watcher->deleteLater();
}
```
Make sure to update the corresponding function declaration in the header file (`DBusDriverInterface.h`) to match the new signature:
`void slotProcessEnd(bool success, const QString &msg);`
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
max-lvs
approved these changes
Aug 5, 2025
|
[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: GongHeng2017, max-lvs The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
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This pr force merged! (status: unstable) |
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-- Function parameter should be passed by const reference.
-- Local varible item shadows outer variable
-- Class has a constructor with 1 argument that is not explicit.
Summary by Sourcery
Improve performance and code safety by avoiding unnecessary copies, preventing variable shadowing, and enforcing explicit constructor and override qualifiers.
Bug Fixes:
Enhancements: