clang-p2996/lldb/test/API/commands/expression/po_persistent_result/Makefile at dda73336ad22bd0b5ecda17040c50fb10fcbe5fb - clang-p2996 - Caio's Gitea

caio/clang-p2996

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Dave Lee 3328ee550c [lldb] Suppress persistent result when running po

Remove the persistent result variable after executing `po`.

Without this change, the following behavior happens:

```
(lldb) p thing
(NSObject *) $0 = 0x600000008000
(lldb) po thing
<NSObject: 0x600000008000>
(lldb) p thing
(NSObject *) $2 = 0x600000008000
(lldb) p $1
(NSObject *) $1 = 0x600000008000
```

Even though `po` hides the persistent result variable, it's still created - as $1 in
this example. It can be accessed even though its existence is not evident.

With this change, the persistent result is removed after the object description has
printed. Instead, this is the behavior:

```
(lldb) p thing
(NSObject *) $0 = 0x600000008000
(lldb) po thing
<NSObject: 0x600000008000>
(lldb) p thing
(NSObject *) $1 = 0x600000008000
```

The difference here is that the `po` doens't silently create a persistent result.

Differential Revision: https://reviews.llvm.org/D144044

2023-02-16 21:05:19 -08:00

4 lines

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Makefile

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	`OBJC_SOURCES := main.m`

	`include Makefile.rules`