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Fix fakegen.rb C header generator for M macro compatibility.

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snak3xe
2017-12-14 22:52:27 +01:00
parent 719dd8b6a3
commit eca3ccbe6c
1 changed files with 27 additions and 21 deletions
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20
fakegen.rb
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@@ -405,6 +405,11 @@ def include_guard
putd "#endif /* FAKE_FUNCTIONS */"
end
def msvc_expand_macro_fix
putd "/* MSVC expand macro fix */"
putd "#define EXPAND(x) x"
end
def generate_arg_sequence(args, prefix, do_reverse, joinstr)
fmap = (0..args).flat_map {|i| [prefix + i.to_s]}
if do_reverse then fmap.reverse.join(joinstr) else fmap.join(", ") end
@@ -416,25 +421,26 @@ def counting_macro_instance(type, vararg = :non_vararg, prefix = "")
<<-MACRO_COUNTING_INSTANCE
#define #{prefix}FAKE_#{type.to_s}_FUNC#{appendix}(...) \
#{prefix}FUNC_#{type.to_s}#{appendix}_(PP_NARG_MINUS#{minus_count}(__VA_ARGS__), __VA_ARGS__)
EXPAND(#{prefix}FUNC_#{type.to_s}#{appendix}_(PP_NARG_MINUS#{minus_count}(__VA_ARGS__), __VA_ARGS__))
#define #{prefix}FUNC_#{type.to_s}#{appendix}_(N,...) \
#{prefix}FUNC_#{type.to_s}#{appendix}_N(N,__VA_ARGS__)
EXPAND(#{prefix}FUNC_#{type.to_s}#{appendix}_N(N,__VA_ARGS__))
#define #{prefix}FUNC_#{type.to_s}#{appendix}_N(N,...) \
#{prefix}FAKE_#{type.to_s}_FUNC ## N#{" ## _VARARG" if vararg == :vararg}(__VA_ARGS__)
EXPAND(#{prefix}FAKE_#{type.to_s}_FUNC ## N#{" ## _VARARG" if vararg == :vararg}(__VA_ARGS__))
MACRO_COUNTING_INSTANCE
end
def output_macro_counting_shortcuts
msvc_expand_macro_fix
putd <<-MACRO_COUNTING
#define PP_NARG_MINUS2(...) \
PP_NARG_MINUS2_(__VA_ARGS__, PP_RSEQ_N_MINUS2())
EXPAND(PP_NARG_MINUS2_(__VA_ARGS__, PP_RSEQ_N_MINUS2()))
#define PP_NARG_MINUS2_(...) \
PP_ARG_MINUS2_N(__VA_ARGS__)
EXPAND(PP_ARG_MINUS2_N(__VA_ARGS__))
#define PP_ARG_MINUS2_N(returnVal, #{generate_arg_sequence($MAX_ARGS, '_', false, ", ")}, N, ...) N
@@ -443,10 +449,10 @@ def output_macro_counting_shortcuts
#define PP_NARG_MINUS1(...) \
PP_NARG_MINUS1_(__VA_ARGS__, PP_RSEQ_N_MINUS1())
EXPAND(PP_NARG_MINUS1_(__VA_ARGS__, PP_RSEQ_N_MINUS1()))
#define PP_NARG_MINUS1_(...) \
PP_ARG_MINUS1_N(__VA_ARGS__)
EXPAND(PP_ARG_MINUS1_N(__VA_ARGS__))
#define PP_ARG_MINUS1_N(#{generate_arg_sequence($MAX_ARGS, '_', false, ", ")}, N, ...) N