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Using clang* I could do
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
// ...
#pragma clang diagnostic pop
However this does not work in swift.
So how to do suppress warnings in Swift?
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To disable a set of warnings for a given piece of code, you have to start with a “push” pre-processor instruction, then with a disabling instruction for each of the warning you want to suppress, and finish with a “pop” pre-processor instruction. Now let's dive into the code for each compiler.
Select your project and select your target and show Build Phases . Search the name of the file in which you want to hide, and you should see it listed in the Compile Sources phase. Double-click in the Compiler Flags column for that file and enter -w to turn off all warnings for that file. Hope it will help you.
There is another approach to turning warning settings “up to eleven,” and that's to specify -Weverything in “Other Warning Flags.” This turns on all the visible Xcode warnings, along with other Clang compiler warnings that Apple has not made visible in the Xcode project settings.
EDIT: below instruction is for "deprecated declarations" warning. If you want to suppress different warnings then you should use flag relevant for the warning. Most of you probably use Clang, and it's warning flags can be found here. So if you want to suppress for example -Wunused-argument you will write it with "no": -Wnounused-argument.
If you want to disable compiler warnings then go to Project -> Target -> Build Settings and add flag with no prefix to other warning flags:
If you want to disable warnings for separate file: Go to Project and pick relevant Target -> Build Phases -> Compile Sources and flag separate file:
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