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Add support for Ruby 2.7

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This commit fixes the signatures of various callback methods
and cleans up the macro definitions used for casting callbacks.

Note that the transparent version of the macro RUBY_METHOD_FUNC
is currently masked behind RUBY_DEVEL, see commit
1d91feaf13
In order to still support strict signature checking and prevent
nasty deprecation warnings, the use of RUBY_METHOD_FUNC had to
be replaced with VALUEFUNC.
This commit is contained in:
Thomas Reitmayr 2019-12-30 20:11:03 +01:00
commit 00e291b319
5 changed files with 38 additions and 49 deletions
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26
Lib/ruby/rubyhead.swg
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@ -110,26 +110,18 @@
* can be passed as an argument to API functions like Data_Wrap_Struct()
* and Data_Make_Struct().
*/
#ifdef __cplusplus
# ifndef RUBY_METHOD_FUNC /* These definitions should work for Ruby 1.4.6 */
# define PROTECTFUNC(f) ((VALUE (*)()) f)
# define VALUEFUNC(f) ((VALUE (*)()) f)
# define VOIDFUNC(f) ((void (*)()) f)
# else
# ifndef ANYARGS /* These definitions should work for Ruby 1.6 */
# define PROTECTFUNC(f) ((VALUE (*)()) f)
# define VALUEFUNC(f) ((VALUE (*)()) f)
# define VOIDFUNC(f) ((RUBY_DATA_FUNC) f)
# else /* These definitions should work for Ruby 1.7+ */
# define PROTECTFUNC(f) ((VALUE (*)(VALUE)) f)
# define VALUEFUNC(f) ((VALUE (*)(ANYARGS)) f)
# define VOIDFUNC(f) ((RUBY_DATA_FUNC) f)
# endif
# endif
#if defined(__cplusplus) && !defined(RB_METHOD_DEFINITION_DECL)
# define PROTECTFUNC(f) ((VALUE (*)(VALUE)) f)
# define VALUEFUNC(f) ((VALUE (*)(ANYARGS)) f)
# define VOIDFUNC(f) ((RUBY_DATA_FUNC) f)
# define VOID_ANYARGS_FUNC(f) ((void (*)(ANYARGS))(f))
# define INT_ANYARGS_FUNC(f) ((int (*)(ANYARGS))(f))
#else
# define PROTECTFUNC(f) (f)
# define VALUEFUNC(f) (f)
# define VOIDFUNC(f) (f)
# define VOID_ANYARGS_FUNC(f) (f)
# define INT_ANYARGS_FUNC(f) (f)
#endif
/* Don't use for expressions have side effect */