我正在使用 Qt Creator 调试器，但当我想通过从 局部变量和表达式 视图中展开当前的 this 变量来检查它时，它需要相当长的时间（大约 30 秒）才能重新控制。
我注意到在 调试器日志 视图中出现了以下消息：
3518fetchVariables({"autoderef":1,"context":"","displaystringlimit":"100","dyntype":1,"expanded":["return","inspect","local.this","watch","local"],"fancy":1,"formats":{},"nativemixed":0,"partialvar":"local.this","passexceptions":0,"qobjectnames":1,"stringcutoff":"10000","token":3518,"typeformats":{},"watchers":[]})
(lldb) script theDumper.fetchVariables({"autoderef":1,"context":"","displaystringlimit":"100","dyntype":1,"expanded":["return","inspect","local.this","watch","local"],"fancy":1,"formats":{},"nativemixed":0,"partialvar":"local.this","passexceptions":0,"qobjectnames":1,"stringcutoff":"10000","token":3518,"typeformats":{},"watchers":[]})
bridgemessage={msg="Searching for type QObjectPrivate across all target modules, this could be very slow"},
eERROR: Lldb stderr: error: PlaybackDevice.o DWARF DW_TAG_array_type DIE at 0x0000db86 has a class/union/struct element type DIE 0x0000db92 that is a forward declaration, not a complete definition.
Try compiling the source file with -fno-limit-debug-info or disable -gmodule
我正在使用:
- Qt 5.9.2
- Qt Creator 4.5.0
- OSX 10.12.6.
编辑:
根据Kuba Ober的建议，我正在使用Qt的调试版本(5.10.0)，感谢这个链接: Qt Creator debugger very slow
不幸的是，消息已经改变为:
eERROR: Lldb stderr: error: PlayBackDevice.o DWARF DW_TAG_array_type DIE at 0x0000f43e has a class/union/struct element type DIE 0x0000f44a that is a forward declaration, not a complete definition.
Try compiling the source file with -fno-limit-debug-info or disable -gmodule
this继承自QObject。如果this是一个简单对象，它会迅速扩展。 - Martin Delille"Searching for type QObjectPrivate across all target modules, this could be very slow"。 - Martin Delille