xref: /vim-8.2.3635/src/if_ruby.c (revision 7e6a515e)
1 /* vi:set ts=8 sts=4 sw=4 noet:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Ruby interface by Shugo Maeda
6  *   with improvements by SegPhault (Ryan Paul)
7  *   with improvements by Jon Maken
8  *
9  * Do ":help uganda"  in Vim to read copying and usage conditions.
10  * Do ":help credits" in Vim to see a list of people who contributed.
11  * See README.txt for an overview of the Vim source code.
12  */
13 
14 #include "protodef.h"
15 #ifdef HAVE_CONFIG_H
16 # include "auto/config.h"
17 #endif
18 
19 #include <stdio.h>
20 #include <string.h>
21 
22 #ifdef _WIN32
23 # if !defined(DYNAMIC_RUBY) || (RUBY_VERSION < 18)
24 #  define NT
25 # endif
26 # ifndef DYNAMIC_RUBY
27 #  define IMPORT // For static dll usage __declspec(dllimport)
28 #  define RUBYEXTERN __declspec(dllimport)
29 # endif
30 #endif
31 #ifndef RUBYEXTERN
32 # define RUBYEXTERN extern
33 #endif
34 
35 // suggested by Ariya Mizutani
36 #if (_MSC_VER == 1200)
37 # undef _WIN32_WINNT
38 #endif
39 
40 #ifdef DYNAMIC_RUBY
41 /*
42  * This is tricky.  In ruby.h there is (inline) function rb_class_of()
43  * definition.  This function use these variables.  But we want function to
44  * use dll_* variables.
45  */
46 # if RUBY_VERSION >= 24
47 #  define USE_RUBY_INTEGER
48 # endif
49 
50 # define rb_cFalseClass		(*dll_rb_cFalseClass)
51 # define rb_cFixnum		(*dll_rb_cFixnum)
52 # if defined(USE_RUBY_INTEGER)
53 #  define rb_cInteger		(*dll_rb_cInteger)
54 # endif
55 # if RUBY_VERSION >= 20
56 #  define rb_cFloat		(*dll_rb_cFloat)
57 # endif
58 # define rb_cNilClass		(*dll_rb_cNilClass)
59 # define rb_cString		(*dll_rb_cString)
60 # define rb_cSymbol		(*dll_rb_cSymbol)
61 # define rb_cTrueClass		(*dll_rb_cTrueClass)
62 
63 # if RUBY_VERSION >= 18
64 /*
65  * On ver 1.8, all Ruby functions are exported with "__declspec(dllimport)"
66  * in ruby.h.  But it causes trouble for these variables, because it is
67  * defined in this file.  When defined this RUBY_EXPORT it modified to
68  * "extern" and be able to avoid this problem.
69  */
70 #  define RUBY_EXPORT
71 # endif
72 
73 # if RUBY_VERSION >= 19
74 // Ruby 1.9 defines a number of static functions which use rb_num2long and
75 // rb_int2big
76 #  define rb_num2long rb_num2long_stub
77 #  define rb_int2big rb_int2big_stub
78 
79 #  if RUBY_VERSION >= 30 || VIM_SIZEOF_INT < VIM_SIZEOF_LONG
80 // Ruby 1.9 defines a number of static functions which use rb_fix2int and
81 // rb_num2int if VIM_SIZEOF_INT < VIM_SIZEOF_LONG (64bit)
82 #   define rb_fix2int rb_fix2int_stub
83 #   define rb_num2int rb_num2int_stub
84 #  endif
85 # endif
86 
87 # if RUBY_VERSION == 21
88 // Ruby 2.1 adds new GC called RGenGC and RARRAY_PTR uses
89 // rb_gc_writebarrier_unprotect_promoted if USE_RGENGC
90 #  define rb_gc_writebarrier_unprotect_promoted rb_gc_writebarrier_unprotect_promoted_stub
91 # endif
92 
93 # if RUBY_VERSION >= 22
94 #  define rb_gc_writebarrier_unprotect rb_gc_writebarrier_unprotect_stub
95 # endif
96 
97 # if RUBY_VERSION >= 26
98 #  define rb_ary_detransient rb_ary_detransient_stub
99 # endif
100 
101 # if RUBY_VERSION >= 30
102 #  define rb_check_type rb_check_type_stub
103 #  define rb_num2uint rb_num2uint_stub
104 #  define ruby_malloc_size_overflow ruby_malloc_size_overflow_stub
105 # endif
106 
107 #endif  // ifdef DYNAMIC_RUBY
108 
109 // On macOS pre-installed Ruby defines "SIZEOF_TIME_T" as "SIZEOF_LONG" so it
110 // conflicts with the definition in config.h then causes a macro-redefined
111 // warning.
112 #ifdef SIZEOF_TIME_T
113 # undef SIZEOF_TIME_T
114 #endif
115 
116 #include <ruby.h>
117 #if RUBY_VERSION >= 19
118 # include <ruby/encoding.h>
119 #endif
120 #if RUBY_VERSION <= 18
121 # include <st.h>  // for ST_STOP and ST_CONTINUE
122 #endif
123 
124 // See above.
125 #ifdef SIZEOF_TIME_T
126 # undef SIZEOF_TIME_T
127 #endif
128 
129 #undef off_t	// ruby defines off_t as _int64, Mingw uses long
130 #undef EXTERN
131 #undef _
132 
133 // T_DATA defined both by Ruby and Mac header files, hack around it...
134 #if defined(MACOS_X)
135 # define __OPENTRANSPORT__
136 # define __OPENTRANSPORTPROTOCOL__
137 # define __OPENTRANSPORTPROVIDERS__
138 #endif
139 
140 /*
141  * The TypedData_XXX macro family can be used since Ruby 1.9.2 but
142  * rb_data_type_t changed in 1.9.3, therefore require at least 2.0.
143  * The old Data_XXX macro family was deprecated on Ruby 2.2.
144  * Use TypedData_XXX if available.
145  */
146 #if defined(TypedData_Wrap_Struct) && (RUBY_VERSION >= 20)
147 # define USE_TYPEDDATA	1
148 #endif
149 
150 /*
151  * Backward compatibility for Ruby 1.8 and earlier.
152  * Ruby 1.9 does not provide STR2CSTR, instead StringValuePtr is provided.
153  * Ruby 1.9 does not provide RXXX(s)->len and RXXX(s)->ptr, instead
154  * RXXX_LEN(s) and RXXX_PTR(s) are provided.
155  */
156 #ifndef StringValuePtr
157 # define StringValuePtr(s) STR2CSTR(s)
158 #endif
159 #ifndef RARRAY_LEN
160 # define RARRAY_LEN(s) RARRAY(s)->len
161 #endif
162 #ifndef RARRAY_PTR
163 # define RARRAY_PTR(s) RARRAY(s)->ptr
164 #endif
165 #ifndef RSTRING_LEN
166 # define RSTRING_LEN(s) RSTRING(s)->len
167 #endif
168 #ifndef RSTRING_PTR
169 # define RSTRING_PTR(s) RSTRING(s)->ptr
170 #endif
171 
172 #ifdef HAVE_DUP
173 # undef HAVE_DUP
174 #endif
175 
176 #include "vim.h"
177 #include "version.h"
178 
179 #ifdef DYNAMIC_RUBY
180 # if !defined(MSWIN)  // must come after including vim.h, where it is defined
181 #  include <dlfcn.h>
182 #  define HINSTANCE void*
183 #  define RUBY_PROC void*
184 #  define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
185 #  define symbol_from_dll dlsym
186 #  define close_dll dlclose
187 # else
188 #  define RUBY_PROC FARPROC
189 #  define load_dll vimLoadLib
190 #  define symbol_from_dll GetProcAddress
191 #  define close_dll FreeLibrary
192 # endif
193 #endif
194 
195 #if defined(PROTO) && !defined(FEAT_RUBY)
196 // Define these to be able to generate the function prototypes.
197 # define VALUE int
198 # define RUBY_DATA_FUNC int
199 #endif
200 
201 static int ruby_initialized = 0;
202 static void *ruby_stack_start;
203 static VALUE objtbl;
204 
205 static VALUE mVIM;
206 static VALUE cBuffer;
207 static VALUE cVimWindow;
208 static VALUE eDeletedBufferError;
209 static VALUE eDeletedWindowError;
210 
211 static int ensure_ruby_initialized(void);
212 static void error_print(int);
213 static void ruby_io_init(void);
214 static void ruby_vim_init(void);
215 static int ruby_convert_to_vim_value(VALUE val, typval_T *rettv);
216 
217 #if (RUBY_VERSION >= 19) || defined(RUBY_INIT_STACK)
218 # if defined(__ia64) && !defined(ruby_init_stack)
219 #  define ruby_init_stack(addr) ruby_init_stack((addr), rb_ia64_bsp())
220 # endif
221 #endif
222 
223 #if defined(DYNAMIC_RUBY) || defined(PROTO)
224 # if defined(PROTO) && !defined(HINSTANCE)
225 #  define HINSTANCE int		// for generating prototypes
226 # endif
227 
228 /*
229  * Wrapper defines
230  */
231 // Ruby 2.7 actually expands the following symbols as macro.
232 # if RUBY_VERSION >= 27
233 #  undef rb_define_global_function
234 #  undef rb_define_method
235 #  undef rb_define_module_function
236 #  undef rb_define_singleton_method
237 # endif
238 
239 # define rb_assoc_new			dll_rb_assoc_new
240 # define rb_cObject			(*dll_rb_cObject)
241 # define rb_class_new_instance		dll_rb_class_new_instance
242 # if RUBY_VERSION < 30
243 #  define rb_check_type			dll_rb_check_type
244 # endif
245 # ifdef USE_TYPEDDATA
246 #  define rb_check_typeddata		dll_rb_check_typeddata
247 # endif
248 # define rb_class_path			dll_rb_class_path
249 # ifdef USE_TYPEDDATA
250 #  if RUBY_VERSION >= 23
251 #   define rb_data_typed_object_wrap	dll_rb_data_typed_object_wrap
252 #  else
253 #   define rb_data_typed_object_alloc	dll_rb_data_typed_object_alloc
254 #  endif
255 # else
256 #  define rb_data_object_alloc		dll_rb_data_object_alloc
257 # endif
258 # define rb_define_class_under		dll_rb_define_class_under
259 # define rb_define_const			dll_rb_define_const
260 # define rb_define_global_function	dll_rb_define_global_function
261 # define rb_define_method		dll_rb_define_method
262 # define rb_define_module		dll_rb_define_module
263 # define rb_define_module_function	dll_rb_define_module_function
264 # define rb_define_singleton_method	dll_rb_define_singleton_method
265 # define rb_define_virtual_variable	dll_rb_define_virtual_variable
266 # define rb_stdout			(*dll_rb_stdout)
267 # define rb_stderr			(*dll_rb_stderr)
268 # define rb_eArgError			(*dll_rb_eArgError)
269 # define rb_eIndexError			(*dll_rb_eIndexError)
270 # define rb_eRuntimeError		(*dll_rb_eRuntimeError)
271 # define rb_eStandardError		(*dll_rb_eStandardError)
272 # define rb_eval_string_protect		dll_rb_eval_string_protect
273 # if RUBY_VERSION >= 21
274 #  define rb_funcallv			dll_rb_funcallv
275 # else
276 #  define rb_funcall2			dll_rb_funcall2
277 # endif
278 # define rb_global_variable		dll_rb_global_variable
279 # define rb_hash_aset			dll_rb_hash_aset
280 # define rb_hash_foreach		dll_rb_hash_foreach
281 # define rb_hash_new			dll_rb_hash_new
282 # define rb_inspect			dll_rb_inspect
283 # define rb_int2inum			dll_rb_int2inum
284 
285 // ruby.h may redefine rb_intern to use RUBY_CONST_ID_CACHE(), but that won't
286 // work.  Not using the cache appears to be the best solution.
287 # undef rb_intern
288 # define rb_intern			dll_rb_intern
289 
290 # if VIM_SIZEOF_INT < VIM_SIZEOF_LONG // 64 bits only
291 #  if RUBY_VERSION <= 18
292 #   define rb_fix2int			dll_rb_fix2int
293 #   define rb_num2int			dll_rb_num2int
294 #  endif
295 #  if RUBY_VERSION < 30
296 #   define rb_num2uint			dll_rb_num2uint
297 #  endif
298 # endif
299 # define rb_num2dbl			dll_rb_num2dbl
300 # define rb_lastline_get			dll_rb_lastline_get
301 # define rb_lastline_set			dll_rb_lastline_set
302 # define rb_protect			dll_rb_protect
303 # define rb_load			dll_rb_load
304 # if RUBY_VERSION <= 18
305 #  define rb_num2long			dll_rb_num2long
306 # endif
307 # if RUBY_VERSION <= 19
308 #  define rb_num2ulong			dll_rb_num2ulong
309 # endif
310 # define rb_obj_alloc			dll_rb_obj_alloc
311 # define rb_obj_as_string		dll_rb_obj_as_string
312 # define rb_obj_id			dll_rb_obj_id
313 # define rb_raise			dll_rb_raise
314 # define rb_str_cat			dll_rb_str_cat
315 # define rb_str_concat			dll_rb_str_concat
316 # undef rb_str_new
317 # define rb_str_new			dll_rb_str_new
318 # ifdef rb_str_new2
319 // Ruby may #define rb_str_new2 to use rb_str_new_cstr.
320 #  define need_rb_str_new_cstr 1
321 // Ruby's headers #define rb_str_new_cstr to make use of GCC's
322 // __builtin_constant_p extension.
323 #  undef rb_str_new_cstr
324 #  define rb_str_new_cstr		dll_rb_str_new_cstr
325 # else
326 #  define rb_str_new2			dll_rb_str_new2
327 # endif
328 # if RUBY_VERSION >= 18
329 #  define rb_string_value		dll_rb_string_value
330 #  define rb_string_value_ptr		dll_rb_string_value_ptr
331 #  define rb_float_new			dll_rb_float_new
332 #  define rb_ary_new			dll_rb_ary_new
333 #  ifdef rb_ary_new4
334 #   define RB_ARY_NEW4_MACRO 1
335 #   undef rb_ary_new4
336 #  endif
337 #  define rb_ary_new4			dll_rb_ary_new4
338 #  define rb_ary_push			dll_rb_ary_push
339 #  if (RUBY_VERSION >= 19) || defined(RUBY_INIT_STACK)
340 #   ifdef __ia64
341 #    define rb_ia64_bsp			dll_rb_ia64_bsp
342 #    undef ruby_init_stack
343 #    define ruby_init_stack(addr)	dll_ruby_init_stack((addr), rb_ia64_bsp())
344 #   else
345 #    define ruby_init_stack		dll_ruby_init_stack
346 #   endif
347 #  endif
348 # else
349 #  define rb_str2cstr			dll_rb_str2cstr
350 # endif
351 # if RUBY_VERSION >= 19
352 #  define rb_errinfo			dll_rb_errinfo
353 # else
354 #  define ruby_errinfo			(*dll_ruby_errinfo)
355 # endif
356 # define ruby_init			dll_ruby_init
357 # define ruby_init_loadpath		dll_ruby_init_loadpath
358 # ifdef MSWIN
359 #  if RUBY_VERSION >= 19
360 #   define ruby_sysinit			dll_ruby_sysinit
361 #  else
362 #   define NtInitialize			dll_NtInitialize
363 #  endif
364 #  if RUBY_VERSION >= 18
365 #   define rb_w32_snprintf		dll_rb_w32_snprintf
366 #  endif
367 # endif
368 
369 # if RUBY_VERSION >= 19
370 #  define ruby_script			dll_ruby_script
371 #  define rb_enc_find_index		dll_rb_enc_find_index
372 #  define rb_enc_find			dll_rb_enc_find
373 #  undef rb_enc_str_new
374 #  define rb_enc_str_new		dll_rb_enc_str_new
375 #  define rb_sprintf			dll_rb_sprintf
376 #  define rb_require			dll_rb_require
377 #  define ruby_options			dll_ruby_options
378 # endif
379 
380 /*
381  * Pointers for dynamic link
382  */
383 static VALUE (*dll_rb_assoc_new) (VALUE, VALUE);
384 VALUE *dll_rb_cFalseClass;
385 VALUE *dll_rb_cFixnum;
386 # if defined(USE_RUBY_INTEGER)
387 VALUE *dll_rb_cInteger;
388 # endif
389 # if RUBY_VERSION >= 20
390 VALUE *dll_rb_cFloat;
391 # endif
392 VALUE *dll_rb_cNilClass;
393 static VALUE *dll_rb_cObject;
394 VALUE *dll_rb_cString;
395 VALUE *dll_rb_cSymbol;
396 VALUE *dll_rb_cTrueClass;
397 static VALUE (*dll_rb_class_new_instance) (int,VALUE*,VALUE);
398 static void (*dll_rb_check_type) (VALUE,int);
399 # ifdef USE_TYPEDDATA
400 static void *(*dll_rb_check_typeddata) (VALUE,const rb_data_type_t *);
401 # endif
402 static VALUE (*dll_rb_class_path) (VALUE);
403 # ifdef USE_TYPEDDATA
404 #  if RUBY_VERSION >= 23
405 static VALUE (*dll_rb_data_typed_object_wrap) (VALUE, void*, const rb_data_type_t *);
406 #  else
407 static VALUE (*dll_rb_data_typed_object_alloc) (VALUE, void*, const rb_data_type_t *);
408 #  endif
409 # else
410 static VALUE (*dll_rb_data_object_alloc) (VALUE, void*, RUBY_DATA_FUNC, RUBY_DATA_FUNC);
411 # endif
412 static VALUE (*dll_rb_define_class_under) (VALUE, const char*, VALUE);
413 static void (*dll_rb_define_const) (VALUE,const char*,VALUE);
414 static void (*dll_rb_define_global_function) (const char*,VALUE(*)(),int);
415 static void (*dll_rb_define_method) (VALUE,const char*,VALUE(*)(),int);
416 static VALUE (*dll_rb_define_module) (const char*);
417 static void (*dll_rb_define_module_function) (VALUE,const char*,VALUE(*)(),int);
418 static void (*dll_rb_define_singleton_method) (VALUE,const char*,VALUE(*)(),int);
419 static void (*dll_rb_define_virtual_variable) (const char*,VALUE(*)(),void(*)());
420 static VALUE *dll_rb_stdout;
421 static VALUE *dll_rb_stderr;
422 static VALUE *dll_rb_eArgError;
423 static VALUE *dll_rb_eIndexError;
424 static VALUE *dll_rb_eRuntimeError;
425 static VALUE *dll_rb_eStandardError;
426 static VALUE (*dll_rb_eval_string_protect) (const char*, int*);
427 # if RUBY_VERSION >= 21
428 static VALUE (*dll_rb_funcallv) (VALUE, ID, int, const VALUE*);
429 # else
430 static VALUE (*dll_rb_funcall2) (VALUE, ID, int, const VALUE*);
431 # endif
432 static void (*dll_rb_global_variable) (VALUE*);
433 static VALUE (*dll_rb_hash_aset) (VALUE, VALUE, VALUE);
434 static VALUE (*dll_rb_hash_foreach) (VALUE, int (*)(VALUE, VALUE, VALUE), VALUE);
435 static VALUE (*dll_rb_hash_new) (void);
436 static VALUE (*dll_rb_inspect) (VALUE);
437 static VALUE (*dll_rb_int2inum) (long);
438 static ID (*dll_rb_intern) (const char*);
439 # if VIM_SIZEOF_INT < VIM_SIZEOF_LONG // 64 bits only
440 static long (*dll_rb_fix2int) (VALUE);
441 static long (*dll_rb_num2int) (VALUE);
442 static unsigned long (*dll_rb_num2uint) (VALUE);
443 # endif
444 static double (*dll_rb_num2dbl) (VALUE);
445 static VALUE (*dll_rb_lastline_get) (void);
446 static void (*dll_rb_lastline_set) (VALUE);
447 static VALUE (*dll_rb_protect) (VALUE (*)(VALUE), VALUE, int*);
448 static void (*dll_rb_load) (VALUE, int);
449 static long (*dll_rb_num2long) (VALUE);
450 static unsigned long (*dll_rb_num2ulong) (VALUE);
451 static VALUE (*dll_rb_obj_alloc) (VALUE);
452 static VALUE (*dll_rb_obj_as_string) (VALUE);
453 static VALUE (*dll_rb_obj_id) (VALUE);
454 static void (*dll_rb_raise) (VALUE, const char*, ...);
455 # if RUBY_VERSION >= 18
456 static VALUE (*dll_rb_string_value) (volatile VALUE*);
457 # else
458 static char *(*dll_rb_str2cstr) (VALUE,int*);
459 # endif
460 static VALUE (*dll_rb_str_cat) (VALUE, const char*, long);
461 static VALUE (*dll_rb_str_concat) (VALUE, VALUE);
462 static VALUE (*dll_rb_str_new) (const char*, long);
463 # ifdef need_rb_str_new_cstr
464 // Ruby may #define rb_str_new2 to use rb_str_new_cstr.
465 static VALUE (*dll_rb_str_new_cstr) (const char*);
466 # else
467 static VALUE (*dll_rb_str_new2) (const char*);
468 # endif
469 # if RUBY_VERSION >= 19
470 static VALUE (*dll_rb_errinfo) (void);
471 # else
472 static VALUE *dll_ruby_errinfo;
473 # endif
474 static void (*dll_ruby_init) (void);
475 static void (*dll_ruby_init_loadpath) (void);
476 # ifdef MSWIN
477 #  if RUBY_VERSION >= 19
478 static void (*dll_ruby_sysinit) (int*, char***);
479 #  else
480 static void (*dll_NtInitialize) (int*, char***);
481 #  endif
482 #  if RUBY_VERSION >= 18
483 static int (*dll_rb_w32_snprintf)(char*, size_t, const char*, ...);
484 #  endif
485 # endif
486 # if RUBY_VERSION >= 18
487 static char * (*dll_rb_string_value_ptr) (volatile VALUE*);
488 static VALUE (*dll_rb_float_new) (double);
489 static VALUE (*dll_rb_ary_new) (void);
490 static VALUE (*dll_rb_ary_new4) (long n, const VALUE *elts);
491 static VALUE (*dll_rb_ary_push) (VALUE, VALUE);
492 #  if RUBY_VERSION >= 26
493 static void (*dll_rb_ary_detransient) (VALUE);
494 #  endif
495 #  if (RUBY_VERSION >= 19) || defined(RUBY_INIT_STACK)
496 #   ifdef __ia64
497 static void * (*dll_rb_ia64_bsp) (void);
498 static void (*dll_ruby_init_stack)(VALUE*, void*);
499 #   else
500 static void (*dll_ruby_init_stack)(VALUE*);
501 #   endif
502 #  endif
503 # endif
504 # if RUBY_VERSION >= 19
505 static VALUE (*dll_rb_int2big)(SIGNED_VALUE);
506 # endif
507 
508 # if RUBY_VERSION >= 19
509 static void (*dll_ruby_script) (const char*);
510 static int (*dll_rb_enc_find_index) (const char*);
511 static rb_encoding* (*dll_rb_enc_find) (const char*);
512 static VALUE (*dll_rb_enc_str_new) (const char*, long, rb_encoding*);
513 static VALUE (*dll_rb_sprintf) (const char*, ...);
514 static VALUE (*dll_rb_require) (const char*);
515 static void* (*dll_ruby_options)(int, char**);
516 # endif
517 
518 # if defined(USE_RGENGC) && USE_RGENGC
519 #  if RUBY_VERSION == 21
520 static void (*dll_rb_gc_writebarrier_unprotect_promoted)(VALUE);
521 #  else
522 static void (*dll_rb_gc_writebarrier_unprotect)(VALUE obj);
523 #  endif
524 # endif
525 
526 # if RUBY_VERSION >= 30
527 NORETURN(static void (*dll_ruby_malloc_size_overflow)(size_t, size_t));
528 # endif
529 
530 # if RUBY_VERSION >= 26
531 void rb_ary_detransient_stub(VALUE x);
532 # endif
533 
534 // Do not generate a prototype here, VALUE isn't always defined.
535 # ifndef PROTO
536 #  if RUBY_VERSION >= 19
537 #   if RUBY_VERSION >= 22
538     long
539 rb_num2long_stub(VALUE x)
540 #   else
541     SIGNED_VALUE
542 rb_num2long_stub(VALUE x)
543 #   endif
544 {
545     return dll_rb_num2long(x);
546 }
547 #   if RUBY_VERSION >= 26
548     VALUE
549 rb_int2big_stub(intptr_t x)
550 #   else
551     VALUE
552 rb_int2big_stub(SIGNED_VALUE x)
553 #   endif
554 {
555     return dll_rb_int2big(x);
556 }
557 #   if VIM_SIZEOF_INT < VIM_SIZEOF_LONG
558     long
559 rb_fix2int_stub(VALUE x)
560 {
561     return dll_rb_fix2int(x);
562 }
563     long
564 rb_num2int_stub(VALUE x)
565 {
566     return dll_rb_num2int(x);
567 }
568 #   endif
569 #   if RUBY_VERSION >= 20
570     VALUE
571 rb_float_new_in_heap(double d)
572 {
573     return dll_rb_float_new(d);
574 }
575 #    if RUBY_VERSION >= 22
576     unsigned long
577 rb_num2ulong(VALUE x)
578 #    else
579     VALUE
580 rb_num2ulong(VALUE x)
581 #    endif
582 {
583     return (long)RSHIFT((SIGNED_VALUE)(x),1);
584 }
585 #   endif
586 #  endif
587 #  if defined(USE_RGENGC) && USE_RGENGC
588 #   if RUBY_VERSION == 21
589     void
590 rb_gc_writebarrier_unprotect_promoted_stub(VALUE obj)
591 {
592     dll_rb_gc_writebarrier_unprotect_promoted(obj);
593 }
594 #   else
595     void
596 rb_gc_writebarrier_unprotect_stub(VALUE obj)
597 {
598     dll_rb_gc_writebarrier_unprotect(obj);
599 }
600 #   endif
601 #  endif
602 #  if RUBY_VERSION >= 26
603     void
604 rb_ary_detransient_stub(VALUE x)
605 {
606     dll_rb_ary_detransient(x);
607 }
608 #  endif
609 #  if RUBY_VERSION >= 30
610     void
611 rb_check_type_stub(VALUE obj, int t)
612 {
613     dll_rb_check_type(obj, t);
614 }
615     unsigned long
616 rb_num2uint_stub(VALUE x)
617 {
618     return dll_rb_num2uint(x);
619 }
620     void
621 ruby_malloc_size_overflow_stub(size_t x, size_t y)
622 {
623     dll_ruby_malloc_size_overflow(x, y);
624 }
625 #  endif
626 # endif // ifndef PROTO
627 
628 static HINSTANCE hinstRuby = NULL; // Instance of ruby.dll
629 
630 /*
631  * Table of name to function pointer of ruby.
632  */
633 static struct
634 {
635     char *name;
636     RUBY_PROC *ptr;
637 } ruby_funcname_table[] =
638 {
639     {"rb_assoc_new", (RUBY_PROC*)&dll_rb_assoc_new},
640     {"rb_cFalseClass", (RUBY_PROC*)&dll_rb_cFalseClass},
641 # if defined(USE_RUBY_INTEGER)
642     {"rb_cInteger", (RUBY_PROC*)&dll_rb_cInteger},
643 # else
644     {"rb_cFixnum", (RUBY_PROC*)&dll_rb_cFixnum},
645 # endif
646 # if RUBY_VERSION >= 20
647     {"rb_cFloat", (RUBY_PROC*)&dll_rb_cFloat},
648 # endif
649     {"rb_cNilClass", (RUBY_PROC*)&dll_rb_cNilClass},
650     {"rb_cObject", (RUBY_PROC*)&dll_rb_cObject},
651     {"rb_cString", (RUBY_PROC*)&dll_rb_cString},
652     {"rb_cSymbol", (RUBY_PROC*)&dll_rb_cSymbol},
653     {"rb_cTrueClass", (RUBY_PROC*)&dll_rb_cTrueClass},
654     {"rb_class_new_instance", (RUBY_PROC*)&dll_rb_class_new_instance},
655     {"rb_check_type", (RUBY_PROC*)&dll_rb_check_type},
656 # ifdef USE_TYPEDDATA
657     {"rb_check_typeddata", (RUBY_PROC*)&dll_rb_check_typeddata},
658 # endif
659     {"rb_class_path", (RUBY_PROC*)&dll_rb_class_path},
660 # ifdef USE_TYPEDDATA
661 #  if RUBY_VERSION >= 23
662     {"rb_data_typed_object_wrap", (RUBY_PROC*)&dll_rb_data_typed_object_wrap},
663 #  else
664     {"rb_data_typed_object_alloc", (RUBY_PROC*)&dll_rb_data_typed_object_alloc},
665 #  endif
666 # else
667     {"rb_data_object_alloc", (RUBY_PROC*)&dll_rb_data_object_alloc},
668 # endif
669     {"rb_define_class_under", (RUBY_PROC*)&dll_rb_define_class_under},
670     {"rb_define_const", (RUBY_PROC*)&dll_rb_define_const},
671     {"rb_define_global_function", (RUBY_PROC*)&dll_rb_define_global_function},
672     {"rb_define_method", (RUBY_PROC*)&dll_rb_define_method},
673     {"rb_define_module", (RUBY_PROC*)&dll_rb_define_module},
674     {"rb_define_module_function", (RUBY_PROC*)&dll_rb_define_module_function},
675     {"rb_define_singleton_method", (RUBY_PROC*)&dll_rb_define_singleton_method},
676     {"rb_define_virtual_variable", (RUBY_PROC*)&dll_rb_define_virtual_variable},
677     {"rb_stdout", (RUBY_PROC*)&dll_rb_stdout},
678     {"rb_stderr", (RUBY_PROC*)&dll_rb_stderr},
679     {"rb_eArgError", (RUBY_PROC*)&dll_rb_eArgError},
680     {"rb_eIndexError", (RUBY_PROC*)&dll_rb_eIndexError},
681     {"rb_eRuntimeError", (RUBY_PROC*)&dll_rb_eRuntimeError},
682     {"rb_eStandardError", (RUBY_PROC*)&dll_rb_eStandardError},
683     {"rb_eval_string_protect", (RUBY_PROC*)&dll_rb_eval_string_protect},
684 # if RUBY_VERSION >= 21
685     {"rb_funcallv", (RUBY_PROC*)&dll_rb_funcallv},
686 # else
687     {"rb_funcall2", (RUBY_PROC*)&dll_rb_funcall2},
688 # endif
689     {"rb_global_variable", (RUBY_PROC*)&dll_rb_global_variable},
690     {"rb_hash_aset", (RUBY_PROC*)&dll_rb_hash_aset},
691     {"rb_hash_foreach", (RUBY_PROC*)&dll_rb_hash_foreach},
692     {"rb_hash_new", (RUBY_PROC*)&dll_rb_hash_new},
693     {"rb_inspect", (RUBY_PROC*)&dll_rb_inspect},
694     {"rb_int2inum", (RUBY_PROC*)&dll_rb_int2inum},
695     {"rb_intern", (RUBY_PROC*)&dll_rb_intern},
696 # if VIM_SIZEOF_INT < VIM_SIZEOF_LONG // 64 bits only
697     {"rb_fix2int", (RUBY_PROC*)&dll_rb_fix2int},
698     {"rb_num2int", (RUBY_PROC*)&dll_rb_num2int},
699     {"rb_num2uint", (RUBY_PROC*)&dll_rb_num2uint},
700 # endif
701     {"rb_num2dbl", (RUBY_PROC*)&dll_rb_num2dbl},
702     {"rb_lastline_get", (RUBY_PROC*)&dll_rb_lastline_get},
703     {"rb_lastline_set", (RUBY_PROC*)&dll_rb_lastline_set},
704     {"rb_protect", (RUBY_PROC*)&dll_rb_protect},
705     {"rb_load", (RUBY_PROC*)&dll_rb_load},
706     {"rb_num2long", (RUBY_PROC*)&dll_rb_num2long},
707     {"rb_num2ulong", (RUBY_PROC*)&dll_rb_num2ulong},
708     {"rb_obj_alloc", (RUBY_PROC*)&dll_rb_obj_alloc},
709     {"rb_obj_as_string", (RUBY_PROC*)&dll_rb_obj_as_string},
710     {"rb_obj_id", (RUBY_PROC*)&dll_rb_obj_id},
711     {"rb_raise", (RUBY_PROC*)&dll_rb_raise},
712 # if RUBY_VERSION >= 18
713     {"rb_string_value", (RUBY_PROC*)&dll_rb_string_value},
714 # else
715     {"rb_str2cstr", (RUBY_PROC*)&dll_rb_str2cstr},
716 # endif
717     {"rb_str_cat", (RUBY_PROC*)&dll_rb_str_cat},
718     {"rb_str_concat", (RUBY_PROC*)&dll_rb_str_concat},
719     {"rb_str_new", (RUBY_PROC*)&dll_rb_str_new},
720 # ifdef need_rb_str_new_cstr
721     {"rb_str_new_cstr", (RUBY_PROC*)&dll_rb_str_new_cstr},
722 # else
723     {"rb_str_new2", (RUBY_PROC*)&dll_rb_str_new2},
724 # endif
725 # if RUBY_VERSION >= 19
726     {"rb_errinfo", (RUBY_PROC*)&dll_rb_errinfo},
727 # else
728     {"ruby_errinfo", (RUBY_PROC*)&dll_ruby_errinfo},
729 # endif
730     {"ruby_init", (RUBY_PROC*)&dll_ruby_init},
731     {"ruby_init_loadpath", (RUBY_PROC*)&dll_ruby_init_loadpath},
732 # ifdef MSWIN
733 #  if RUBY_VERSION >= 19
734     {"ruby_sysinit", (RUBY_PROC*)&dll_ruby_sysinit},
735 #  else
736     {"NtInitialize", (RUBY_PROC*)&dll_NtInitialize},
737 #  endif
738 #  if RUBY_VERSION >= 18
739     {"rb_w32_snprintf", (RUBY_PROC*)&dll_rb_w32_snprintf},
740 #  endif
741 # endif
742 # if RUBY_VERSION >= 18
743     {"rb_string_value_ptr", (RUBY_PROC*)&dll_rb_string_value_ptr},
744 #  if RUBY_VERSION <= 19
745     {"rb_float_new", (RUBY_PROC*)&dll_rb_float_new},
746 #  else
747     {"rb_float_new_in_heap", (RUBY_PROC*)&dll_rb_float_new},
748 #  endif
749     {"rb_ary_new", (RUBY_PROC*)&dll_rb_ary_new},
750 #  ifdef RB_ARY_NEW4_MACRO
751     {"rb_ary_new_from_values", (RUBY_PROC*)&dll_rb_ary_new4},
752 #  else
753     {"rb_ary_new4", (RUBY_PROC*)&dll_rb_ary_new4},
754 #  endif
755     {"rb_ary_push", (RUBY_PROC*)&dll_rb_ary_push},
756 #  if RUBY_VERSION >= 26
757     {"rb_ary_detransient", (RUBY_PROC*)&dll_rb_ary_detransient},
758 #  endif
759 # endif
760 # if RUBY_VERSION >= 19
761     {"rb_int2big", (RUBY_PROC*)&dll_rb_int2big},
762     {"ruby_script", (RUBY_PROC*)&dll_ruby_script},
763     {"rb_enc_find_index", (RUBY_PROC*)&dll_rb_enc_find_index},
764     {"rb_enc_find", (RUBY_PROC*)&dll_rb_enc_find},
765     {"rb_enc_str_new", (RUBY_PROC*)&dll_rb_enc_str_new},
766     {"rb_sprintf", (RUBY_PROC*)&dll_rb_sprintf},
767     {"rb_require", (RUBY_PROC*)&dll_rb_require},
768     {"ruby_options", (RUBY_PROC*)&dll_ruby_options},
769 # endif
770 # if (RUBY_VERSION >= 19) || defined(RUBY_INIT_STACK)
771 #  ifdef __ia64
772     {"rb_ia64_bsp", (RUBY_PROC*)&dll_rb_ia64_bsp},
773 #  endif
774     {"ruby_init_stack", (RUBY_PROC*)&dll_ruby_init_stack},
775 # endif
776 # if defined(USE_RGENGC) && USE_RGENGC
777 #  if RUBY_VERSION == 21
778     {"rb_gc_writebarrier_unprotect_promoted", (RUBY_PROC*)&dll_rb_gc_writebarrier_unprotect_promoted},
779 #  else
780     {"rb_gc_writebarrier_unprotect", (RUBY_PROC*)&dll_rb_gc_writebarrier_unprotect},
781 #  endif
782 # endif
783 # if RUBY_VERSION >= 30
784     {"ruby_malloc_size_overflow", (RUBY_PROC*)&dll_ruby_malloc_size_overflow},
785 # endif
786     {"", NULL},
787 };
788 
789 /*
790  * Load library and get all pointers.
791  * Parameter 'libname' provides name of DLL.
792  * Return OK or FAIL.
793  */
794     static int
795 ruby_runtime_link_init(char *libname, int verbose)
796 {
797     int i;
798 
799     if (hinstRuby)
800 	return OK;
801     hinstRuby = load_dll(libname);
802     if (!hinstRuby)
803     {
804 	if (verbose)
805 	    semsg(_(e_loadlib), libname);
806 	return FAIL;
807     }
808 
809     for (i = 0; ruby_funcname_table[i].ptr; ++i)
810     {
811 	if (!(*ruby_funcname_table[i].ptr = symbol_from_dll(hinstRuby,
812 			ruby_funcname_table[i].name)))
813 	{
814 	    close_dll(hinstRuby);
815 	    hinstRuby = NULL;
816 	    if (verbose)
817 		semsg(_(e_loadfunc), ruby_funcname_table[i].name);
818 	    return FAIL;
819 	}
820     }
821     return OK;
822 }
823 
824 /*
825  * If ruby is enabled (there is installed ruby on Windows system) return TRUE,
826  * else FALSE.
827  */
828     int
829 ruby_enabled(int verbose)
830 {
831     return ruby_runtime_link_init((char *)p_rubydll, verbose) == OK;
832 }
833 #endif // defined(DYNAMIC_RUBY) || defined(PROTO)
834 
835     void
836 ruby_end(void)
837 {
838 }
839 
840     void
841 ex_ruby(exarg_T *eap)
842 {
843     int state;
844     char *script = NULL;
845 
846     script = (char *)script_get(eap, eap->arg);
847     if (!eap->skip && ensure_ruby_initialized())
848     {
849 	if (script == NULL)
850 	    rb_eval_string_protect((char *)eap->arg, &state);
851 	else
852 	    rb_eval_string_protect(script, &state);
853 	if (state)
854 	    error_print(state);
855     }
856     vim_free(script);
857 }
858 
859 /*
860  *  In Ruby 1.9 or later, ruby String object has encoding.
861  *  conversion buffer string of vim to ruby String object using
862  *  VIM encoding option.
863  */
864     static VALUE
865 vim_str2rb_enc_str(const char *s)
866 {
867 #if RUBY_VERSION >= 19
868     long lval;
869     char_u *sval;
870     rb_encoding *enc;
871 
872     if (get_option_value((char_u *)"enc", &lval, &sval, 0) == gov_string)
873     {
874 	enc = rb_enc_find((char *)sval);
875 	vim_free(sval);
876 	if (enc)
877 	    return rb_enc_str_new(s, (long)strlen(s), enc);
878     }
879 #endif
880     return rb_str_new2(s);
881 }
882 
883     static VALUE
884 eval_enc_string_protect(const char *str, int *state)
885 {
886 #if RUBY_VERSION >= 19
887     long lval;
888     char_u *sval;
889     rb_encoding *enc;
890     VALUE v;
891 
892     if (get_option_value((char_u *)"enc", &lval, &sval, 0) == gov_string)
893     {
894 	enc = rb_enc_find((char *)sval);
895 	vim_free(sval);
896 	if (enc)
897 	{
898 	    v = rb_sprintf("#-*- coding:%s -*-\n%s", rb_enc_name(enc), str);
899 	    return rb_eval_string_protect(StringValuePtr(v), state);
900 	}
901     }
902 #endif
903     return rb_eval_string_protect(str, state);
904 }
905 
906     void
907 ex_rubydo(exarg_T *eap)
908 {
909     int state;
910     linenr_T i;
911     buf_T   *was_curbuf = curbuf;
912 
913     if (ensure_ruby_initialized())
914     {
915 	if (u_save(eap->line1 - 1, eap->line2 + 1) != OK)
916 	    return;
917 	for (i = eap->line1; i <= eap->line2; i++)
918 	{
919 	    VALUE line;
920 
921 	    if (i > curbuf->b_ml.ml_line_count)
922 		break;
923 	    line = vim_str2rb_enc_str((char *)ml_get(i));
924 	    rb_lastline_set(line);
925 	    eval_enc_string_protect((char *) eap->arg, &state);
926 	    if (state)
927 	    {
928 		error_print(state);
929 		break;
930 	    }
931 	    if (was_curbuf != curbuf)
932 		break;
933 	    line = rb_lastline_get();
934 	    if (!NIL_P(line))
935 	    {
936 		if (TYPE(line) != T_STRING)
937 		{
938 		    emsg(_("E265: $_ must be an instance of String"));
939 		    return;
940 		}
941 		ml_replace(i, (char_u *) StringValuePtr(line), 1);
942 		changed();
943 #ifdef SYNTAX_HL
944 		syn_changed(i); // recompute syntax hl. for this line
945 #endif
946 	    }
947 	}
948 	check_cursor();
949 	update_curbuf(NOT_VALID);
950     }
951 }
952 
953     static VALUE
954 rb_load_wrap(VALUE file_to_load)
955 {
956     rb_load(file_to_load, 0);
957     return Qnil;
958 }
959 
960     void
961 ex_rubyfile(exarg_T *eap)
962 {
963     int state;
964 
965     if (ensure_ruby_initialized())
966     {
967 	VALUE file_to_load = rb_str_new2((const char *)eap->arg);
968 	rb_protect(rb_load_wrap, file_to_load, &state);
969 	if (state)
970 	    error_print(state);
971     }
972 }
973 
974     void
975 ruby_buffer_free(buf_T *buf)
976 {
977     if (buf->b_ruby_ref)
978     {
979 	rb_hash_aset(objtbl, rb_obj_id((VALUE) buf->b_ruby_ref), Qnil);
980 	RDATA(buf->b_ruby_ref)->data = NULL;
981     }
982 }
983 
984     void
985 ruby_window_free(win_T *win)
986 {
987     if (win->w_ruby_ref)
988     {
989 	rb_hash_aset(objtbl, rb_obj_id((VALUE) win->w_ruby_ref), Qnil);
990 	RDATA(win->w_ruby_ref)->data = NULL;
991     }
992 }
993 
994     static int
995 ensure_ruby_initialized(void)
996 {
997     if (!ruby_initialized)
998     {
999 #ifdef DYNAMIC_RUBY
1000 	if (ruby_enabled(TRUE))
1001 	{
1002 #endif
1003 #ifdef MSWIN
1004 	    // suggested by Ariya Mizutani
1005 	    int argc = 1;
1006 	    char *argv[] = {"gvim.exe"};
1007 	    char **argvp = argv;
1008 # if RUBY_VERSION >= 19
1009 	    ruby_sysinit(&argc, &argvp);
1010 # else
1011 	    NtInitialize(&argc, &argvp);
1012 # endif
1013 #endif
1014 	    {
1015 #if (RUBY_VERSION >= 19) || defined(RUBY_INIT_STACK)
1016 		ruby_init_stack(ruby_stack_start);
1017 #endif
1018 		ruby_init();
1019 	    }
1020 #if RUBY_VERSION >= 19
1021 	    {
1022 		int dummy_argc = 2;
1023 		char *dummy_argv[] = {"vim-ruby", "-e_=0"};
1024 		ruby_options(dummy_argc, dummy_argv);
1025 	    }
1026 	    ruby_script("vim-ruby");
1027 #else
1028 	    ruby_init_loadpath();
1029 #endif
1030 	    ruby_io_init();
1031 	    ruby_vim_init();
1032 	    ruby_initialized = 1;
1033 #ifdef DYNAMIC_RUBY
1034 	}
1035 	else
1036 	{
1037 	    emsg(_("E266: Sorry, this command is disabled, the Ruby library could not be loaded."));
1038 	    return 0;
1039 	}
1040 #endif
1041     }
1042     return ruby_initialized;
1043 }
1044 
1045     static void
1046 error_print(int state)
1047 {
1048 #if !defined(DYNAMIC_RUBY) && (RUBY_VERSION <= 18)
1049     RUBYEXTERN VALUE ruby_errinfo;
1050 #endif
1051     VALUE error;
1052     VALUE eclass;
1053     VALUE einfo;
1054     VALUE bt;
1055     int attr;
1056     char buff[BUFSIZ];
1057     long i;
1058 
1059 #define TAG_RETURN	0x1
1060 #define TAG_BREAK	0x2
1061 #define TAG_NEXT	0x3
1062 #define TAG_RETRY	0x4
1063 #define TAG_REDO	0x5
1064 #define TAG_RAISE	0x6
1065 #define TAG_THROW	0x7
1066 #define TAG_FATAL	0x8
1067 #define TAG_MASK	0xf
1068 
1069     switch (state)
1070     {
1071 	case TAG_RETURN:
1072 	    emsg(_("E267: unexpected return"));
1073 	    break;
1074 	case TAG_NEXT:
1075 	    emsg(_("E268: unexpected next"));
1076 	    break;
1077 	case TAG_BREAK:
1078 	    emsg(_("E269: unexpected break"));
1079 	    break;
1080 	case TAG_REDO:
1081 	    emsg(_("E270: unexpected redo"));
1082 	    break;
1083 	case TAG_RETRY:
1084 	    emsg(_("E271: retry outside of rescue clause"));
1085 	    break;
1086 	case TAG_RAISE:
1087 	case TAG_FATAL:
1088 #if RUBY_VERSION >= 19
1089 	    error = rb_errinfo();
1090 #else
1091 	    error = ruby_errinfo;
1092 #endif
1093 	    eclass = CLASS_OF(error);
1094 	    einfo = rb_obj_as_string(error);
1095 	    if (eclass == rb_eRuntimeError && RSTRING_LEN(einfo) == 0)
1096 	    {
1097 		emsg(_("E272: unhandled exception"));
1098 	    }
1099 	    else
1100 	    {
1101 		VALUE epath;
1102 		char *p;
1103 
1104 		epath = rb_class_path(eclass);
1105 		vim_snprintf(buff, BUFSIZ, "%s: %s",
1106 			 RSTRING_PTR(epath), RSTRING_PTR(einfo));
1107 		p = strchr(buff, '\n');
1108 		if (p) *p = '\0';
1109 		emsg(buff);
1110 	    }
1111 
1112 	    attr = syn_name2attr((char_u *)"Error");
1113 #if RUBY_VERSION >= 21
1114 	    bt = rb_funcallv(error, rb_intern("backtrace"), 0, 0);
1115 	    for (i = 0; i < RARRAY_LEN(bt); i++)
1116 		msg_attr(RSTRING_PTR(RARRAY_AREF(bt, i)), attr);
1117 #else
1118 	    bt = rb_funcall2(error, rb_intern("backtrace"), 0, 0);
1119 	    for (i = 0; i < RARRAY_LEN(bt); i++)
1120 		msg_attr(RSTRING_PTR(RARRAY_PTR(bt)[i]), attr);
1121 #endif
1122 	    break;
1123 	default:
1124 	    vim_snprintf(buff, BUFSIZ, _("E273: unknown longjmp status %d"), state);
1125 	    emsg(buff);
1126 	    break;
1127     }
1128 }
1129 
1130     static VALUE
1131 vim_message(VALUE self UNUSED, VALUE str)
1132 {
1133     char *buff, *p;
1134 
1135     str = rb_obj_as_string(str);
1136     if (RSTRING_LEN(str) > 0)
1137     {
1138 	// Only do this when the string isn't empty, alloc(0) causes trouble.
1139 	buff = ALLOCA_N(char, RSTRING_LEN(str) + 1);
1140 	strcpy(buff, RSTRING_PTR(str));
1141 	p = strchr(buff, '\n');
1142 	if (p) *p = '\0';
1143 	msg(buff);
1144     }
1145     else
1146     {
1147 	msg("");
1148     }
1149     return Qnil;
1150 }
1151 
1152     static VALUE
1153 vim_set_option(VALUE self UNUSED, VALUE str)
1154 {
1155     do_set((char_u *)StringValuePtr(str), 0);
1156     update_screen(NOT_VALID);
1157     return Qnil;
1158 }
1159 
1160     static VALUE
1161 vim_command(VALUE self UNUSED, VALUE str)
1162 {
1163     do_cmdline_cmd((char_u *)StringValuePtr(str));
1164     return Qnil;
1165 }
1166 
1167 #ifdef FEAT_EVAL
1168     static VALUE
1169 vim_to_ruby(typval_T *tv)
1170 {
1171     VALUE result = Qnil;
1172 
1173     if (tv->v_type == VAR_STRING)
1174     {
1175 	result = rb_str_new2(tv->vval.v_string == NULL
1176 					  ? "" : (char *)(tv->vval.v_string));
1177     }
1178     else if (tv->v_type == VAR_NUMBER)
1179     {
1180 	result = INT2NUM(tv->vval.v_number);
1181     }
1182 # ifdef FEAT_FLOAT
1183     else if (tv->v_type == VAR_FLOAT)
1184     {
1185 	result = rb_float_new(tv->vval.v_float);
1186     }
1187 # endif
1188     else if (tv->v_type == VAR_LIST)
1189     {
1190 	list_T      *list = tv->vval.v_list;
1191 	listitem_T  *curr;
1192 
1193 	result = rb_ary_new();
1194 
1195 	if (list != NULL)
1196 	{
1197 	    FOR_ALL_LIST_ITEMS(list, curr)
1198 		rb_ary_push(result, vim_to_ruby(&curr->li_tv));
1199 	}
1200     }
1201     else if (tv->v_type == VAR_DICT)
1202     {
1203 	result = rb_hash_new();
1204 
1205 	if (tv->vval.v_dict != NULL)
1206 	{
1207 	    hashtab_T   *ht = &tv->vval.v_dict->dv_hashtab;
1208 	    long_u      todo = ht->ht_used;
1209 	    hashitem_T  *hi;
1210 	    dictitem_T  *di;
1211 
1212 	    for (hi = ht->ht_array; todo > 0; ++hi)
1213 	    {
1214 		if (!HASHITEM_EMPTY(hi))
1215 		{
1216 		    --todo;
1217 
1218 		    di = dict_lookup(hi);
1219 		    rb_hash_aset(result, rb_str_new2((char *)hi->hi_key),
1220 						     vim_to_ruby(&di->di_tv));
1221 		}
1222 	    }
1223 	}
1224     }
1225     else if (tv->v_type == VAR_BOOL || tv->v_type == VAR_SPECIAL)
1226     {
1227 	if (tv->vval.v_number == VVAL_TRUE)
1228 	    result = Qtrue;
1229 	else if (tv->vval.v_number == VVAL_FALSE)
1230 	    result = Qfalse;
1231     }
1232     else if (tv->v_type == VAR_BLOB)
1233     {
1234 	result = rb_str_new(tv->vval.v_blob->bv_ga.ga_data,
1235 		tv->vval.v_blob->bv_ga.ga_len);
1236     }
1237     // else return Qnil;
1238 
1239     return result;
1240 }
1241 #endif
1242 
1243     static VALUE
1244 vim_evaluate(VALUE self UNUSED, VALUE str)
1245 {
1246 #ifdef FEAT_EVAL
1247     typval_T    *tv;
1248     VALUE       result;
1249 
1250     tv = eval_expr((char_u *)StringValuePtr(str), NULL);
1251     if (tv == NULL)
1252 	return Qnil;
1253     result = vim_to_ruby(tv);
1254 
1255     free_tv(tv);
1256 
1257     return result;
1258 #else
1259     return Qnil;
1260 #endif
1261 }
1262 
1263 #ifdef USE_TYPEDDATA
1264 static size_t buffer_dsize(const void *buf);
1265 
1266 static const rb_data_type_t buffer_type = {
1267     "vim_buffer",
1268     {0, 0, buffer_dsize,
1269 # if RUBY_VERSION >= 27
1270 	0, {0}
1271 # else
1272 	{0, 0}
1273 # endif
1274     },
1275     0, 0,
1276 # ifdef RUBY_TYPED_FREE_IMMEDIATELY
1277     0,
1278 # endif
1279 };
1280 
1281     static size_t
1282 buffer_dsize(const void *buf UNUSED)
1283 {
1284     return sizeof(buf_T);
1285 }
1286 #endif
1287 
1288     static VALUE
1289 buffer_new(buf_T *buf)
1290 {
1291     if (buf->b_ruby_ref)
1292     {
1293 	return (VALUE) buf->b_ruby_ref;
1294     }
1295     else
1296     {
1297 #ifdef USE_TYPEDDATA
1298 	VALUE obj = TypedData_Wrap_Struct(cBuffer, &buffer_type, buf);
1299 #else
1300 	VALUE obj = Data_Wrap_Struct(cBuffer, 0, 0, buf);
1301 #endif
1302 	buf->b_ruby_ref = (void *) obj;
1303 	rb_hash_aset(objtbl, rb_obj_id(obj), obj);
1304 	return obj;
1305     }
1306 }
1307 
1308     static buf_T *
1309 get_buf(VALUE obj)
1310 {
1311     buf_T *buf;
1312 
1313 #ifdef USE_TYPEDDATA
1314     TypedData_Get_Struct(obj, buf_T, &buffer_type, buf);
1315 #else
1316     Data_Get_Struct(obj, buf_T, buf);
1317 #endif
1318     if (buf == NULL)
1319 	rb_raise(eDeletedBufferError, "attempt to refer to deleted buffer");
1320     return buf;
1321 }
1322 
1323     static VALUE
1324 vim_blob(VALUE self UNUSED, VALUE str)
1325 {
1326     VALUE result = rb_str_new("0z", 2);
1327     char    buf[4];
1328     int	i;
1329     for (i = 0; i < RSTRING_LEN(str); i++)
1330     {
1331 	sprintf(buf, "%02X", (unsigned char)(RSTRING_PTR(str)[i]));
1332 	rb_str_concat(result, rb_str_new2(buf));
1333     }
1334     return result;
1335 }
1336 
1337     static VALUE
1338 buffer_s_current(VALUE self UNUSED)
1339 {
1340     return buffer_new(curbuf);
1341 }
1342 
1343     static VALUE
1344 buffer_s_current_getter(ID id UNUSED, VALUE *x UNUSED)
1345 {
1346     return buffer_new(curbuf);
1347 }
1348 
1349     static VALUE
1350 buffer_s_count(VALUE self UNUSED)
1351 {
1352     buf_T *b;
1353     int n = 0;
1354 
1355     FOR_ALL_BUFFERS(b)
1356     {
1357 	//  Deleted buffers should not be counted
1358 	//    SegPhault - 01/07/05
1359 	if (b->b_p_bl)
1360 	    n++;
1361     }
1362 
1363     return INT2NUM(n);
1364 }
1365 
1366     static VALUE
1367 buffer_s_aref(VALUE self UNUSED, VALUE num)
1368 {
1369     buf_T *b;
1370     int n = NUM2INT(num);
1371 
1372     FOR_ALL_BUFFERS(b)
1373     {
1374 	//  Deleted buffers should not be counted
1375 	//    SegPhault - 01/07/05
1376 	if (!b->b_p_bl)
1377 	    continue;
1378 
1379 	if (n == 0)
1380 	    return buffer_new(b);
1381 
1382 	n--;
1383     }
1384     return Qnil;
1385 }
1386 
1387     static VALUE
1388 buffer_name(VALUE self)
1389 {
1390     buf_T *buf = get_buf(self);
1391 
1392     return buf->b_ffname ? rb_str_new2((char *)buf->b_ffname) : Qnil;
1393 }
1394 
1395     static VALUE
1396 buffer_number(VALUE self)
1397 {
1398     buf_T *buf = get_buf(self);
1399 
1400     return INT2NUM(buf->b_fnum);
1401 }
1402 
1403     static VALUE
1404 buffer_count(VALUE self)
1405 {
1406     buf_T *buf = get_buf(self);
1407 
1408     return INT2NUM(buf->b_ml.ml_line_count);
1409 }
1410 
1411     static VALUE
1412 get_buffer_line(buf_T *buf, linenr_T n)
1413 {
1414     if (n <= 0 || n > buf->b_ml.ml_line_count)
1415 	rb_raise(rb_eIndexError, "line number %ld out of range", (long)n);
1416     return vim_str2rb_enc_str((char *)ml_get_buf(buf, n, FALSE));
1417 }
1418 
1419     static VALUE
1420 buffer_aref(VALUE self, VALUE num)
1421 {
1422     buf_T *buf = get_buf(self);
1423 
1424     if (buf != NULL)
1425 	return get_buffer_line(buf, (linenr_T)NUM2LONG(num));
1426     return Qnil; // For stop warning
1427 }
1428 
1429     static VALUE
1430 set_buffer_line(buf_T *buf, linenr_T n, VALUE str)
1431 {
1432     char	*line = StringValuePtr(str);
1433     aco_save_T	aco;
1434 
1435     if (n > 0 && n <= buf->b_ml.ml_line_count && line != NULL)
1436     {
1437 	// set curwin/curbuf for "buf" and save some things
1438 	aucmd_prepbuf(&aco, buf);
1439 
1440 	if (u_savesub(n) == OK)
1441 	{
1442 	    ml_replace(n, (char_u *)line, TRUE);
1443 	    changed();
1444 #ifdef SYNTAX_HL
1445 	    syn_changed(n); // recompute syntax hl. for this line
1446 #endif
1447 	}
1448 
1449 	// restore curwin/curbuf and a few other things
1450 	aucmd_restbuf(&aco);
1451 	// Careful: autocommands may have made "buf" invalid!
1452 
1453 	update_curbuf(NOT_VALID);
1454     }
1455     else
1456     {
1457 	rb_raise(rb_eIndexError, "line number %ld out of range", (long)n);
1458     }
1459     return str;
1460 }
1461 
1462     static VALUE
1463 buffer_aset(VALUE self, VALUE num, VALUE str)
1464 {
1465     buf_T *buf = get_buf(self);
1466 
1467     if (buf != NULL)
1468 	return set_buffer_line(buf, (linenr_T)NUM2LONG(num), str);
1469     return str;
1470 }
1471 
1472     static VALUE
1473 buffer_delete(VALUE self, VALUE num)
1474 {
1475     buf_T	*buf = get_buf(self);
1476     long	n = NUM2LONG(num);
1477     aco_save_T	aco;
1478 
1479     if (n > 0 && n <= buf->b_ml.ml_line_count)
1480     {
1481 	// set curwin/curbuf for "buf" and save some things
1482 	aucmd_prepbuf(&aco, buf);
1483 
1484 	if (u_savedel(n, 1) == OK)
1485 	{
1486 	    ml_delete(n);
1487 
1488 	    // Changes to non-active buffers should properly refresh
1489 	    //   SegPhault - 01/09/05
1490 	    deleted_lines_mark(n, 1L);
1491 
1492 	    changed();
1493 	}
1494 
1495 	// restore curwin/curbuf and a few other things
1496 	aucmd_restbuf(&aco);
1497 	// Careful: autocommands may have made "buf" invalid!
1498 
1499 	update_curbuf(NOT_VALID);
1500     }
1501     else
1502     {
1503 	rb_raise(rb_eIndexError, "line number %ld out of range", n);
1504     }
1505     return Qnil;
1506 }
1507 
1508     static VALUE
1509 buffer_append(VALUE self, VALUE num, VALUE str)
1510 {
1511     buf_T	*buf = get_buf(self);
1512     char	*line = StringValuePtr(str);
1513     long	n = NUM2LONG(num);
1514     aco_save_T	aco;
1515 
1516     if (line == NULL)
1517     {
1518 	rb_raise(rb_eIndexError, "NULL line");
1519     }
1520     else if (n >= 0 && n <= buf->b_ml.ml_line_count)
1521     {
1522 	// set curwin/curbuf for "buf" and save some things
1523 	aucmd_prepbuf(&aco, buf);
1524 
1525 	if (u_inssub(n + 1) == OK)
1526 	{
1527 	    ml_append(n, (char_u *) line, (colnr_T) 0, FALSE);
1528 
1529 	    //  Changes to non-active buffers should properly refresh screen
1530 	    //    SegPhault - 12/20/04
1531 	    appended_lines_mark(n, 1L);
1532 
1533 	    changed();
1534 	}
1535 
1536 	// restore curwin/curbuf and a few other things
1537 	aucmd_restbuf(&aco);
1538 	// Careful: autocommands may have made "buf" invalid!
1539 
1540 	update_curbuf(NOT_VALID);
1541     }
1542     else
1543     {
1544 	rb_raise(rb_eIndexError, "line number %ld out of range", n);
1545     }
1546     return str;
1547 }
1548 
1549 #ifdef USE_TYPEDDATA
1550 static size_t window_dsize(const void *buf);
1551 
1552 static const rb_data_type_t window_type = {
1553     "vim_window",
1554     {0, 0, window_dsize,
1555 # if RUBY_VERSION >= 27
1556 	0, {0}
1557 # else
1558 	{0, 0}
1559 # endif
1560     },
1561     0, 0,
1562 # ifdef RUBY_TYPED_FREE_IMMEDIATELY
1563     0,
1564 # endif
1565 };
1566 
1567     static size_t
1568 window_dsize(const void *win UNUSED)
1569 {
1570     return sizeof(win_T);
1571 }
1572 #endif
1573 
1574     static VALUE
1575 window_new(win_T *win)
1576 {
1577     if (win->w_ruby_ref)
1578     {
1579 	return (VALUE) win->w_ruby_ref;
1580     }
1581     else
1582     {
1583 #ifdef USE_TYPEDDATA
1584 	VALUE obj = TypedData_Wrap_Struct(cVimWindow, &window_type, win);
1585 #else
1586 	VALUE obj = Data_Wrap_Struct(cVimWindow, 0, 0, win);
1587 #endif
1588 	win->w_ruby_ref = (void *) obj;
1589 	rb_hash_aset(objtbl, rb_obj_id(obj), obj);
1590 	return obj;
1591     }
1592 }
1593 
1594     static win_T *
1595 get_win(VALUE obj)
1596 {
1597     win_T *win;
1598 
1599 #ifdef USE_TYPEDDATA
1600     TypedData_Get_Struct(obj, win_T, &window_type, win);
1601 #else
1602     Data_Get_Struct(obj, win_T, win);
1603 #endif
1604     if (win == NULL)
1605 	rb_raise(eDeletedWindowError, "attempt to refer to deleted window");
1606     return win;
1607 }
1608 
1609     static VALUE
1610 window_s_current(VALUE self UNUSED)
1611 {
1612     return window_new(curwin);
1613 }
1614 
1615     static VALUE
1616 window_s_current_getter(ID id UNUSED, VALUE *x UNUSED)
1617 {
1618     return window_new(curwin);
1619 }
1620 
1621 /*
1622  * Added line manipulation functions
1623  *    SegPhault - 03/07/05
1624  */
1625     static VALUE
1626 line_s_current(VALUE self UNUSED)
1627 {
1628     return get_buffer_line(curbuf, curwin->w_cursor.lnum);
1629 }
1630 
1631     static VALUE
1632 set_current_line(VALUE self UNUSED, VALUE str)
1633 {
1634     return set_buffer_line(curbuf, curwin->w_cursor.lnum, str);
1635 }
1636 
1637     static VALUE
1638 current_line_number(VALUE self UNUSED)
1639 {
1640     return INT2FIX((int)curwin->w_cursor.lnum);
1641 }
1642 
1643     static VALUE
1644 window_s_count(VALUE self UNUSED)
1645 {
1646     win_T	*w;
1647     int n = 0;
1648 
1649     FOR_ALL_WINDOWS(w)
1650 	n++;
1651     return INT2NUM(n);
1652 }
1653 
1654     static VALUE
1655 window_s_aref(VALUE self UNUSED, VALUE num)
1656 {
1657     win_T *w;
1658     int n = NUM2INT(num);
1659 
1660     for (w = firstwin; w != NULL; w = w->w_next, --n)
1661 	if (n == 0)
1662 	    return window_new(w);
1663     return Qnil;
1664 }
1665 
1666     static VALUE
1667 window_buffer(VALUE self)
1668 {
1669     win_T *win = get_win(self);
1670 
1671     return buffer_new(win->w_buffer);
1672 }
1673 
1674     static VALUE
1675 window_height(VALUE self)
1676 {
1677     win_T *win = get_win(self);
1678 
1679     return INT2NUM(win->w_height);
1680 }
1681 
1682     static VALUE
1683 window_set_height(VALUE self, VALUE height)
1684 {
1685     win_T *win = get_win(self);
1686     win_T *savewin = curwin;
1687 
1688     curwin = win;
1689     win_setheight(NUM2INT(height));
1690     curwin = savewin;
1691     return height;
1692 }
1693 
1694     static VALUE
1695 window_width(VALUE self UNUSED)
1696 {
1697     return INT2NUM(get_win(self)->w_width);
1698 }
1699 
1700     static VALUE
1701 window_set_width(VALUE self UNUSED, VALUE width)
1702 {
1703     win_T *win = get_win(self);
1704     win_T *savewin = curwin;
1705 
1706     curwin = win;
1707     win_setwidth(NUM2INT(width));
1708     curwin = savewin;
1709     return width;
1710 }
1711 
1712     static VALUE
1713 window_cursor(VALUE self)
1714 {
1715     win_T *win = get_win(self);
1716 
1717     return rb_assoc_new(INT2NUM(win->w_cursor.lnum), INT2NUM(win->w_cursor.col));
1718 }
1719 
1720     static VALUE
1721 window_set_cursor(VALUE self, VALUE pos)
1722 {
1723     VALUE lnum, col;
1724     win_T *win = get_win(self);
1725 
1726     Check_Type(pos, T_ARRAY);
1727     if (RARRAY_LEN(pos) != 2)
1728 	rb_raise(rb_eArgError, "array length must be 2");
1729     lnum = RARRAY_PTR(pos)[0];
1730     col = RARRAY_PTR(pos)[1];
1731     win->w_cursor.lnum = NUM2LONG(lnum);
1732     win->w_cursor.col = NUM2UINT(col);
1733     win->w_set_curswant = TRUE;
1734     check_cursor();		    // put cursor on an existing line
1735     update_screen(NOT_VALID);
1736     return Qnil;
1737 }
1738 
1739     static VALUE
1740 f_nop(VALUE self UNUSED)
1741 {
1742     return Qnil;
1743 }
1744 
1745     static VALUE
1746 f_p(int argc, VALUE *argv, VALUE self UNUSED)
1747 {
1748     int i;
1749     VALUE str = rb_str_new("", 0);
1750     VALUE ret = Qnil;
1751 
1752     for (i = 0; i < argc; i++)
1753     {
1754 	if (i > 0) rb_str_cat(str, ", ", 2);
1755 	rb_str_concat(str, rb_inspect(argv[i]));
1756     }
1757     msg(RSTRING_PTR(str));
1758 
1759     if (argc == 1)
1760 	ret = argv[0];
1761     else if (argc > 1)
1762 	ret = rb_ary_new4(argc, argv);
1763     return ret;
1764 }
1765 
1766     static void
1767 ruby_io_init(void)
1768 {
1769 #ifndef DYNAMIC_RUBY
1770     RUBYEXTERN VALUE rb_stdout;
1771     RUBYEXTERN VALUE rb_stderr;
1772 #endif
1773 
1774     rb_stdout = rb_obj_alloc(rb_cObject);
1775     rb_stderr = rb_obj_alloc(rb_cObject);
1776     rb_define_singleton_method(rb_stdout, "write", vim_message, 1);
1777     rb_define_singleton_method(rb_stdout, "flush", f_nop, 0);
1778     rb_define_singleton_method(rb_stderr, "write", vim_message, 1);
1779     rb_define_singleton_method(rb_stderr, "flush", f_nop, 0);
1780     rb_define_global_function("p", f_p, -1);
1781 }
1782 
1783     static void
1784 ruby_vim_init(void)
1785 {
1786     objtbl = rb_hash_new();
1787     rb_global_variable(&objtbl);
1788 
1789     // The Vim module used to be called "VIM", but "Vim" is better.  Make an
1790     // alias "VIM" for backwards compatibility.
1791     mVIM = rb_define_module("Vim");
1792     rb_define_const(rb_cObject, "VIM", mVIM);
1793     rb_define_const(mVIM, "VERSION_MAJOR", INT2NUM(VIM_VERSION_MAJOR));
1794     rb_define_const(mVIM, "VERSION_MINOR", INT2NUM(VIM_VERSION_MINOR));
1795     rb_define_const(mVIM, "VERSION_BUILD", INT2NUM(VIM_VERSION_BUILD));
1796     rb_define_const(mVIM, "VERSION_PATCHLEVEL", INT2NUM(VIM_VERSION_PATCHLEVEL));
1797     rb_define_const(mVIM, "VERSION_SHORT", rb_str_new2(VIM_VERSION_SHORT));
1798     rb_define_const(mVIM, "VERSION_MEDIUM", rb_str_new2(VIM_VERSION_MEDIUM));
1799     rb_define_const(mVIM, "VERSION_LONG", rb_str_new2(VIM_VERSION_LONG));
1800     rb_define_const(mVIM, "VERSION_LONG_DATE", rb_str_new2(VIM_VERSION_LONG_DATE));
1801     rb_define_module_function(mVIM, "message", vim_message, 1);
1802     rb_define_module_function(mVIM, "set_option", vim_set_option, 1);
1803     rb_define_module_function(mVIM, "command", vim_command, 1);
1804     rb_define_module_function(mVIM, "evaluate", vim_evaluate, 1);
1805     rb_define_module_function(mVIM, "blob", vim_blob, 1);
1806 
1807     eDeletedBufferError = rb_define_class_under(mVIM, "DeletedBufferError",
1808 						rb_eStandardError);
1809     eDeletedWindowError = rb_define_class_under(mVIM, "DeletedWindowError",
1810 						rb_eStandardError);
1811 
1812     cBuffer = rb_define_class_under(mVIM, "Buffer", rb_cObject);
1813     rb_define_singleton_method(cBuffer, "current", buffer_s_current, 0);
1814     rb_define_singleton_method(cBuffer, "count", buffer_s_count, 0);
1815     rb_define_singleton_method(cBuffer, "[]", buffer_s_aref, 1);
1816     rb_define_method(cBuffer, "name", buffer_name, 0);
1817     rb_define_method(cBuffer, "number", buffer_number, 0);
1818     rb_define_method(cBuffer, "count", buffer_count, 0);
1819     rb_define_method(cBuffer, "length", buffer_count, 0);
1820     rb_define_method(cBuffer, "[]", buffer_aref, 1);
1821     rb_define_method(cBuffer, "[]=", buffer_aset, 2);
1822     rb_define_method(cBuffer, "delete", buffer_delete, 1);
1823     rb_define_method(cBuffer, "append", buffer_append, 2);
1824 
1825     // Added line manipulation functions
1826     //   SegPhault - 03/07/05
1827     rb_define_method(cBuffer, "line_number", current_line_number, 0);
1828     rb_define_method(cBuffer, "line", line_s_current, 0);
1829     rb_define_method(cBuffer, "line=", set_current_line, 1);
1830 
1831 
1832     cVimWindow = rb_define_class_under(mVIM, "Window", rb_cObject);
1833     rb_define_singleton_method(cVimWindow, "current", window_s_current, 0);
1834     rb_define_singleton_method(cVimWindow, "count", window_s_count, 0);
1835     rb_define_singleton_method(cVimWindow, "[]", window_s_aref, 1);
1836     rb_define_method(cVimWindow, "buffer", window_buffer, 0);
1837     rb_define_method(cVimWindow, "height", window_height, 0);
1838     rb_define_method(cVimWindow, "height=", window_set_height, 1);
1839     rb_define_method(cVimWindow, "width", window_width, 0);
1840     rb_define_method(cVimWindow, "width=", window_set_width, 1);
1841     rb_define_method(cVimWindow, "cursor", window_cursor, 0);
1842     rb_define_method(cVimWindow, "cursor=", window_set_cursor, 1);
1843 
1844     rb_define_virtual_variable("$curbuf", buffer_s_current_getter, 0);
1845     rb_define_virtual_variable("$curwin", window_s_current_getter, 0);
1846 }
1847 
1848     void
1849 vim_ruby_init(void *stack_start)
1850 {
1851     // should get machine stack start address early in main function
1852     ruby_stack_start = stack_start;
1853 }
1854 
1855     static int
1856 convert_hash2dict(VALUE key, VALUE val, VALUE arg)
1857 {
1858     dict_T *d = (dict_T *)arg;
1859     dictitem_T *di;
1860 
1861     di = dictitem_alloc((char_u *)RSTRING_PTR(rb_obj_as_string(key)));
1862     if (di == NULL || ruby_convert_to_vim_value(val, &di->di_tv) != OK
1863 						     || dict_add(d, di) != OK)
1864     {
1865 	d->dv_hashtab.ht_error = TRUE;
1866 	return ST_STOP;
1867     }
1868     return ST_CONTINUE;
1869 }
1870 
1871     static int
1872 ruby_convert_to_vim_value(VALUE val, typval_T *rettv)
1873 {
1874     switch (TYPE(val))
1875     {
1876 	case T_NIL:
1877 	    rettv->v_type = VAR_SPECIAL;
1878 	    rettv->vval.v_number = VVAL_NULL;
1879 	    break;
1880 	case T_TRUE:
1881 	    rettv->v_type = VAR_BOOL;
1882 	    rettv->vval.v_number = VVAL_TRUE;
1883 	    break;
1884 	case T_FALSE:
1885 	    rettv->v_type = VAR_BOOL;
1886 	    rettv->vval.v_number = VVAL_FALSE;
1887 	    break;
1888 	case T_BIGNUM:
1889 	case T_FIXNUM:
1890 	    rettv->v_type = VAR_NUMBER;
1891 	    rettv->vval.v_number = (varnumber_T)NUM2LONG(val);
1892 	    break;
1893 #ifdef FEAT_FLOAT
1894 	case T_FLOAT:
1895 	    rettv->v_type = VAR_FLOAT;
1896 	    rettv->vval.v_float = (float_T)NUM2DBL(val);
1897 	    break;
1898 #endif
1899 	default:
1900 	    val = rb_obj_as_string(val);
1901 	    // FALLTHROUGH
1902 	case T_STRING:
1903 	    {
1904 		VALUE str = (VALUE)RSTRING(val);
1905 
1906 		rettv->v_type = VAR_STRING;
1907 		rettv->vval.v_string = vim_strnsave((char_u *)RSTRING_PTR(str),
1908 							     RSTRING_LEN(str));
1909 	    }
1910 	    break;
1911 	case T_ARRAY:
1912 	    {
1913 		list_T *l;
1914 		long i;
1915 		typval_T v;
1916 
1917 		l = list_alloc();
1918 		if (l == NULL)
1919 		    return FAIL;
1920 
1921 		for (i = 0; i < RARRAY_LEN(val); ++i)
1922 		{
1923 		    if (ruby_convert_to_vim_value((VALUE)RARRAY_PTR(val)[i],
1924 									&v) != OK)
1925 		    {
1926 			list_unref(l);
1927 			return FAIL;
1928 		    }
1929 		    list_append_tv(l, &v);
1930 		    clear_tv(&v);
1931 		}
1932 
1933 		rettv->v_type = VAR_LIST;
1934 		rettv->vval.v_list = l;
1935 		++l->lv_refcount;
1936 	    }
1937 	    break;
1938 	case T_HASH:
1939 	    {
1940 		dict_T *d;
1941 
1942 		d = dict_alloc();
1943 		if (d == NULL)
1944 		    return FAIL;
1945 
1946 		rb_hash_foreach(val, convert_hash2dict, (VALUE)d);
1947 		if (d->dv_hashtab.ht_error)
1948 		{
1949 		    dict_unref(d);
1950 		    return FAIL;
1951 		}
1952 
1953 		rettv->v_type = VAR_DICT;
1954 		rettv->vval.v_dict = d;
1955 		++d->dv_refcount;
1956 	    }
1957 	    break;
1958     }
1959     return OK;
1960 }
1961 
1962     void
1963 do_rubyeval(char_u *str, typval_T *rettv)
1964 {
1965     int retval = FAIL;
1966 
1967     if (ensure_ruby_initialized())
1968     {
1969 	int state;
1970 	VALUE obj;
1971 
1972 	obj = rb_eval_string_protect((const char *)str, &state);
1973 	if (state)
1974 	    error_print(state);
1975 	else
1976 	    retval = ruby_convert_to_vim_value(obj, rettv);
1977     }
1978     if (retval == FAIL)
1979     {
1980 	rettv->v_type = VAR_NUMBER;
1981 	rettv->vval.v_number = 0;
1982     }
1983 }
1984