66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
#ifndef COMPILE_H
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#define COMPILE_H
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extern unsigned * token_array;
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extern unsigned token_count;
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extern char * output_file_name;
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extern int compile_init(void);
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extern int compile_deinit(void);
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extern int compile(void);
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/* --- Token appending
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* The core problem is that we want an interface where we can append {instructoin}
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* tokens without modifying the counter as that gets old fast and error prone
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* when doing batches.
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* Many tokens are enumerated so we have to push them individually.
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* A variadic argument interface would be ideal except theres not free
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* value to use as a termination and i dont need to tell you why passing the count
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* by hand is a terrible idea.
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* Enter macro magick, the below horror beyond your comprehension will count
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* the arguments and pass them explicitly, in an implicit way.
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* Now:
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* append_instructions(...);
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* Is valid and human error resistant.
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*/
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#define PP_NARG(...) \
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PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
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#define PP_NARG_(...) \
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PP_128TH_ARG(__VA_ARGS__)
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#define PP_128TH_ARG( \
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_1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
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_11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
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_21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
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_31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
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_41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
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_51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
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_61,_62,_63,_64,_65,_66,_67,_68,_69,_70, \
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_71,_72,_73,_74,_75,_76,_77,_78,_79,_80, \
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_81,_82,_83,_84,_85,_86,_87,_88,_89,_90, \
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_91,_92,_93,_94,_95,_96,_97,_98,_99,_100, \
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_101,_102,_103,_104,_105,_106,_107,_108,_109,_110, \
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_111,_112,_113,_114,_115,_116,_117,_118,_119,_120, \
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_121,_122,_123,_124,_125,_126,_127,N,...) N
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#define PP_RSEQ_N() \
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127,126,125,124,123,122,121,120, \
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119,118,117,116,115,114,113,112,111,110, \
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109,108,107,106,105,104,103,102,101,100, \
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99,98,97,96,95,94,93,92,91,90, \
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89,88,87,86,85,84,83,82,81,80, \
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79,78,77,76,75,74,73,72,71,70, \
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69,68,67,66,65,64,63,62,61,60, \
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59,58,57,56,55,54,53,52,51,50, \
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49,48,47,46,45,44,43,42,41,40, \
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39,38,37,36,35,34,33,32,31,30, \
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29,28,27,26,25,24,23,22,21,20, \
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19,18,17,16,15,14,13,12,11,10, \
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9,8,7,6,5,4,3,2,1,0
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void _append_instructions(const unsigned argc, ...);
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#define append_instructions(...) _append_instructions(PP_NARG(__VA_ARGS__), __VA_ARGS__)
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#endif
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