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0e8e67097d
This adds a new pragma for ImportC, which allows to set default storage classes. Only `nothrow`, `@nogc` and `pure` are supported for now. They can be disabled later using `#pragma attribute(pop)`. Unknown storage classes are ignored.
26 lines
922 B
Text
26 lines
922 B
Text
A pragma for ImportC allows to set `nothrow`, `@nogc` or `pure`
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The following new pragma for ImportC allows to set default storage
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classes for function declarations:
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```
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#pragma attribute(push, [storage classes...])
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```
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The storage classes `nothrow`, `nogc` and `pure` are supported.
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Unrecognized attributes are ignored.
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Enabling a default storage class affects all function declarations
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after the pragma until it is disabled with another pragma.
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Declarations in includes are also affected. The following example
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enables `@nogc` and `nothrow` for a library:
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```
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#pragma attribute(push, nogc, nothrow)
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#include <somelibrary.h>
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```
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The changed storage classes are pushed on a stack. The last change can
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be undone with the following pragma:
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```
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#pragma attribute(pop)
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```
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This can also disable multiple default storage classes at the same time,
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if they were enabled with a single `#pragma attribute(push, ...)` directive.
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