objective-c - 如何为项目中的单个文件禁用ARC？(How can I disable ARC for a single file in a project?)

Question

I am using ARC successfully in my project.

(我在项目中成功使用了ARC。)

However, I have encountered a few files (eg, in unit tests and mock objects) where the rules of ARC are a little more fragile right now.

(但是，我遇到了一些文件（例如，在单元测试和模拟对象中），其中ARC规则现在更加脆弱。)

I recall hearing that there was a way to disable ARC on a per-file basis, though I have been unable to find this option.

(我记得曾经听说有一种方法可以按文件禁用ARC，尽管我一直找不到该选项。)

Is this possible?

(这可能吗？)

How do I disable ARC on a per-file basis?

(如何按文件禁用ARC？)

  ask by casademora translate from so

Answer 1

It is possible to disable ARC for individual files by adding the -fno-objc-arc compiler flag for those files.

(通过为这些文件添加-fno-objc-arc编译器标志，可以禁用单个文件的ARC。)

You add compiler flags in Targets -> Build Phases -> Compile Sources.

(您可以在目标->构建阶段->编译源中添加编译器标志。)

You have to double click on the right column of the row under Compiler Flags .

(您必须双击“ 编译器标志”下该行的右列。)

You can also add it to multiple files by holding the cmd button to select the files and then pressing enter to bring up the flag edit box.

(您还可以通过以下方式将其添加到多个文件中：按住cmd按钮选择文件，然后按Enter弹出标记编辑框。)

(Note that editing multiple files will overwrite any flags that it may already have.)

(（请注意，编辑多个文件将覆盖它可能已经拥有的所有标志。）)

I created a sample project that has an example: https://github.com/jaminguy/NoArc

(我创建了一个带有示例的示例项目： https : //github.com/jaminguy/NoArc)

See this answer for more info: Disable Automatic Reference Counting for Some Files

(有关更多信息，请参见此答案： 禁用某些文件的自动引用计数)