CODEWITHSUNDEEP
objective-cxcodeautomatic-ref-countingmanual-retain-release
casademora
casademora

Reputation: 69647

How can I disable ARC for a single file in a project?

I am using ARC successfully in my project. However, I have encountered a few files (e.g., in unit tests and mock objects) where the rules of ARC are a little more fragile right now. 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.

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

Upvotes: 1371

Views: 342040

Answers (18)

Mnsd
Mnsd

Reputation: 35

  1. select project -> targets -> build phases -> compiler sources
  2. select file -> compiler flags
  3. add -fno-objc-arc

Upvotes: -1

Tunvir Rahman Tusher
Tunvir Rahman Tusher

Reputation: 6631

Please Just follow the screenshot and enter -fno-objc-arc .

enter image description here

Upvotes: 9

Vin
Vin

Reputation: 456

I think all the other answers are explaining how to disable MRC(Manual Reference Count) and enabling ARC(Automatic Reference Count). To Use MRC(Manual Reference Count) i.e. Disabling ARC(Automatic Reference Count) on MULTIPLE files:

  1. Select desired files at Target/Build Phases/Compile Sources in Xcode
  2. PRESS ENTER
  3. Type -fobjc-arc
  4. Press Enter or Done

Upvotes: 7

jaminguy
jaminguy

Reputation: 25930

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

You add compiler flags in Targets -> Build Phases -> Compile Sources. You have to double click on the right column of the row under Compiler Flags. 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. (Note that editing multiple files will overwrite any flags that it may already have.)

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

xcode

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

Upvotes: 2183

Dipak Narigara
Dipak Narigara

Reputation: 1806

It is very simple way to make individual file non-arc.

Follow below steps :

Disable ARC on individual file:

  1. Select desired files at Target/Build Phases/Compile Sources in Xcode

  2. Select .m file which you want make it NON-ARC PRESS ENTER Type -fno-objc-arc

Non ARC file to ARC project flag : -fno-objc-arc

ARC file to non ARC project flag : -fobjc-arc

Upvotes: 38

greenland
greenland

Reputation: 289

If you're using Unity, you don't need to change this in Xcode, you can apply a compile flag in the metadata for the specific file(s), right inside Unity. Just select them in the Project panel, and apply from the Inspector panel. This is essential if you plan on using Cloud Build.enter image description here

Upvotes: 8

Tibidabo
Tibidabo

Reputation: 21571

Disable ARC on MULTIPLE files:

  1. Select desired files at Target/Build Phases/Compile Sources in Xcode
  2. PRESS ENTER
  3. Type -fno-objc-arc
  4. Press Enter or Done

;)

enter image description here

Upvotes: 464

annu
annu

Reputation: 137

Following Step to to enable disable ARC

Select Xcode project Go to targets Select the Build phases section Inside the build phases section select the compile sources. Select the file which you do not want to disable ARC and add -fno-objc-arc

Upvotes: -2

adijazz91
adijazz91

Reputation: 404

GO to App -> then Targets -> Build Phases -> Compile Source

Now, Select the file in which you want to disable ARC

paste this snippet "-fno-objc-arc" After pasting press ENTER

in each file where you want to disable ARC.

Upvotes: -1

C_compnay
C_compnay

Reputation: 133

Just use the -fno-objc-arc flag in Build Phases>Compile Sources infront of files to whom you dont want ARC to be apply.

Upvotes: 2

Jayprakash Dubey
Jayprakash Dubey

Reputation: 36447

It is possible to disable ARC (Automatic Reference Counting) for particular file in Xcode.

Select Target -> Build Phases -> Compile Sources -> Select File (double click) -> Add "-fno-objc-arc" to pop-up window.

I had encountered this situation in using "Reachibility" files.

This is shown in below figure :

enter image description here

Upvotes: 14

Rahul Gupta
Rahul Gupta

Reputation: 808

Just use the -fno-objc-arc flag in Build Phases>Compile Sources

Upvotes: 22

user2538944
user2538944

Reputation: 305

  1. Select Xcode project
  2. Go to targets
  3. Select the Build phases section
  4. Inside the build phases section select the compile sources.
  5. Select the file which you do not want to disable ARC and add -fno-objc-arc

Disable ARC for a particular file

Upvotes: 14

user2554822
user2554822

Reputation: 191

The four Mandatory Step as explained in this video

    //1. Select desired files
    //2. Target/Build Phases/Compile Sources
    //3. Type -fno-objc-arc
    //4. Done

Upvotes: 12

Manoj Chandel
Manoj Chandel

Reputation: 508

Add flag “-fno-objc-arc”.

Simple follow steps : App>Targets>Build Phases>Compile Sources> add flag after class “-fno-objc-arc”

Upvotes: 6

Manish Jain
Manish Jain

Reputation: 865

use -fno-objc-arc for each file in build phases

Upvotes: 12

digipeople
digipeople

Reputation: 752

Note: if you want to disable ARC for many files, you have to:

  1. open "Build phases" -> "Compile sources"
  2. select files with "left_mouse" + "cmd" (for separated files) or + "shift" (for grouped files - select first and last)
  3. press "enter"
  4. paste -fno-objc-arc
  5. press "enter" again
  6. profit!

Upvotes: 36

Jingjie Zhan
Jingjie Zhan

Reputation: 985

For Xcode 4.3 the easier way might be: Edit/Refactor/Convert to objective-C ARC, then check off the files you don't want to be converted. I find this way the same as using the compiler flag above.

Upvotes: 45

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