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import.carbon

import.carbon 11 KB
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  1. // Part of the Carbon Language project, under the Apache License v2.0 with LLVM
    2. 

  2. // Exceptions. See /LICENSE for license information.
    3. 

  3. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
    4. 

  4. //
    5. 

  5. // AUTOUPDATE
    6. 

  6. 

  7. // ============================================================================
    8. 

  8. // Setup files
    9. 

  9. // ============================================================================
    10. 

  10. 

  11. // --- fns.carbon
    12. 

  12. 

  13. library "fns" api;
    14. 

  14. 

  15. fn A() {}
    16. 

  16. fn B(b: i32) -> i32 { return b; }
    17. 

  17. fn C(c: (i32,)) -> {.c: i32} { return {.c = c[0]}; }
    18. 

  18. fn D();
    19. 

  19. 

  20. // --- extern.carbon
    21. 

  21. 

  22. library "extern" api;
    23. 

  23. 

  24. extern fn A();
    25. 

  25. 

  26. // ============================================================================
    27. 

  27. // Test files
    28. 

  28. // ============================================================================
    29. 

  29. 

  30. // --- basics.carbon
    31. 

  31. 

  32. library "basics" api;
    33. 

  33. 

  34. import library "fns";
    35. 

  35. 

  36. var a: () = A();
    37. 

  37. var b: i32 = B(1);
    38. 

  38. var c: {.c: i32} = C((1,));
    39. 

  39. 

  40. // --- fail_def_ownership.carbon
    41. 

  41. 

  42. library "def_ownership" api;
    43. 

  43. 

  44. import library "fns";
    45. 

  45. 

  46. // CHECK:STDERR: fail_def_ownership.carbon:[[@LINE+10]]:1: ERROR: Only one library can declare function A without `extern`.
    47. 

  47. // CHECK:STDERR: fn A() {};
    48. 

  48. // CHECK:STDERR: ^~~~~~~~
    49. 

  49. // CHECK:STDERR: fail_def_ownership.carbon:[[@LINE-5]]:1: In import.
    50. 

  50. // CHECK:STDERR: import library "fns";
    51. 

  51. // CHECK:STDERR: ^~~~~~
    52. 

  52. // CHECK:STDERR: fns.carbon:4:1: Previously declared here.
    53. 

  53. // CHECK:STDERR: fn A() {}
    54. 

  54. // CHECK:STDERR: ^~~~~~~~
    55. 

  55. // CHECK:STDERR:
    56. 

  56. fn A() {};
    57. 

  57. // CHECK:STDERR: fail_def_ownership.carbon:[[@LINE+10]]:1: ERROR: Only one library can declare function B without `extern`.
    58. 

  58. // CHECK:STDERR: fn B(b: i32) -> i32;
    59. 

  59. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~
    60. 

  60. // CHECK:STDERR: fail_def_ownership.carbon:[[@LINE-16]]:1: In import.
    61. 

  61. // CHECK:STDERR: import library "fns";
    62. 

  62. // CHECK:STDERR: ^~~~~~
    63. 

  63. // CHECK:STDERR: fns.carbon:5:1: Previously declared here.
    64. 

  64. // CHECK:STDERR: fn B(b: i32) -> i32 { return b; }
    65. 

  65. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~
    66. 

  66. // CHECK:STDERR:
    67. 

  67. fn B(b: i32) -> i32;
    68. 

  68. 

  69. // --- redecl_then_def.carbon
    70. 

  70. 

  71. library "redecl_then_def" api;
    72. 

  72. 

  73. import library "extern";
    74. 

  74. 

  75. fn A();
    76. 

  76. fn A() {}
    77. 

  77. 

  78. // --- fail_mix_extern_decl.carbon
    79. 

  79. 

  80. library "mix_extern_decl" api;
    81. 

  81. 

  82. import library "fns";
    83. 

  83. 

  84. extern fn D();
    85. 

  85. // CHECK:STDERR: fail_mix_extern_decl.carbon:[[@LINE+6]]:1: ERROR: Redeclaring `extern` function `D` as non-`extern`.
    86. 

  86. // CHECK:STDERR: fn D() {}
    87. 

  87. // CHECK:STDERR: ^~~~~~~~
    88. 

  88. // CHECK:STDERR: fail_mix_extern_decl.carbon:[[@LINE-4]]:1: Previously declared `extern` here.
    89. 

  89. // CHECK:STDERR: extern fn D();
    90. 

  90. // CHECK:STDERR: ^~~~~~~~~~~~~~
    91. 

  91. fn D() {}
    92. 

  92. 

  93. // CHECK:STDOUT: --- fns.carbon
    94. 

  94. // CHECK:STDOUT:
    95. 

  95. // CHECK:STDOUT: constants {
    96. 

  96. // CHECK:STDOUT:   %.1: type = tuple_type (type) [template]
    97. 

  97. // CHECK:STDOUT:   %.2: type = tuple_type (i32) [template]
    98. 

  98. // CHECK:STDOUT:   %.3: type = struct_type {.c: i32} [template]
    99. 

  99. // CHECK:STDOUT:   %.4: i32 = int_literal 0 [template]
    100. 

  100. // CHECK:STDOUT: }
    101. 

  101. // CHECK:STDOUT:
    102. 

  102. // CHECK:STDOUT: file {
    103. 

  103. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    104. 

  104. // CHECK:STDOUT:     .A = %A
    105. 

  105. // CHECK:STDOUT:     .B = %B
    106. 

  106. // CHECK:STDOUT:     .C = %C
    107. 

  107. // CHECK:STDOUT:     .D = %D
    108. 

  108. // CHECK:STDOUT:   }
    109. 

  109. // CHECK:STDOUT:   %A: <function> = fn_decl @A [template] {}
    110. 

  110. // CHECK:STDOUT:   %B: <function> = fn_decl @B [template] {
    111. 

  111. // CHECK:STDOUT:     %b.loc5_6.1: i32 = param b
    112. 

  112. // CHECK:STDOUT:     @B.%b: i32 = bind_name b, %b.loc5_6.1
    113. 

  113. // CHECK:STDOUT:     %return.var.loc5: ref i32 = var <return slot>
    114. 

  114. // CHECK:STDOUT:   }
    115. 

  115. // CHECK:STDOUT:   %C: <function> = fn_decl @C [template] {
    116. 

  116. // CHECK:STDOUT:     %.loc6_14.1: (type,) = tuple_literal (i32)
    117. 

  117. // CHECK:STDOUT:     %.loc6_14.2: type = converted %.loc6_14.1, constants.%.2 [template = constants.%.2]
    118. 

  118. // CHECK:STDOUT:     %c.loc6_6.1: (i32,) = param c
    119. 

  119. // CHECK:STDOUT:     @C.%c: (i32,) = bind_name c, %c.loc6_6.1
    120. 

  120. // CHECK:STDOUT:     %.loc6_28: type = struct_type {.c: i32} [template = constants.%.3]
    121. 

  121. // CHECK:STDOUT:     %return.var.loc6: ref {.c: i32} = var <return slot>
    122. 

  122. // CHECK:STDOUT:   }
    123. 

  123. // CHECK:STDOUT:   %D: <function> = fn_decl @D [template] {}
    124. 

  124. // CHECK:STDOUT: }
    125. 

  125. // CHECK:STDOUT:
    126. 

  126. // CHECK:STDOUT: fn @A() {
    127. 

  127. // CHECK:STDOUT: !entry:
    128. 

  128. // CHECK:STDOUT:   return
    129. 

  129. // CHECK:STDOUT: }
    130. 

  130. // CHECK:STDOUT:
    131. 

  131. // CHECK:STDOUT: fn @B(%b: i32) -> i32 {
    132. 

  132. // CHECK:STDOUT: !entry:
    133. 

  133. // CHECK:STDOUT:   %b.ref: i32 = name_ref b, %b
    134. 

  134. // CHECK:STDOUT:   return %b.ref
    135. 

  135. // CHECK:STDOUT: }
    136. 

  136. // CHECK:STDOUT:
    137. 

  137. // CHECK:STDOUT: fn @C(%c: (i32,)) -> {.c: i32} {
    138. 

  138. // CHECK:STDOUT: !entry:
    139. 

  139. // CHECK:STDOUT:   %c.ref: (i32,) = name_ref c, %c
    140. 

  140. // CHECK:STDOUT:   %.loc6_47: i32 = int_literal 0 [template = constants.%.4]
    141. 

  141. // CHECK:STDOUT:   %.loc6_48: i32 = tuple_index %c.ref, %.loc6_47
    142. 

  142. // CHECK:STDOUT:   %.loc6_49.1: {.c: i32} = struct_literal (%.loc6_48)
    143. 

  143. // CHECK:STDOUT:   %.loc6_49.2: {.c: i32} = struct_value (%.loc6_48)
    144. 

  144. // CHECK:STDOUT:   %.loc6_49.3: {.c: i32} = converted %.loc6_49.1, %.loc6_49.2
    145. 

  145. // CHECK:STDOUT:   return %.loc6_49.3
    146. 

  146. // CHECK:STDOUT: }
    147. 

  147. // CHECK:STDOUT:
    148. 

  148. // CHECK:STDOUT: fn @D();
    149. 

  149. // CHECK:STDOUT:
    150. 

  150. // CHECK:STDOUT: --- extern.carbon
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: file {
    153. 

  153. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    154. 

  154. // CHECK:STDOUT:     .A = %A
    155. 

  155. // CHECK:STDOUT:   }
    156. 

  156. // CHECK:STDOUT:   %A: <function> = fn_decl @A [template] {}
    157. 

  157. // CHECK:STDOUT: }
    158. 

  158. // CHECK:STDOUT:
    159. 

  159. // CHECK:STDOUT: extern fn @A();
    160. 

  160. // CHECK:STDOUT:
    161. 

  161. // CHECK:STDOUT: --- basics.carbon
    162. 

  162. // CHECK:STDOUT:
    163. 

  163. // CHECK:STDOUT: constants {
    164. 

  164. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    165. 

  165. // CHECK:STDOUT:   %.2: i32 = int_literal 1 [template]
    166. 

  166. // CHECK:STDOUT:   %.3: type = struct_type {.c: i32} [template]
    167. 

  167. // CHECK:STDOUT:   %.4: type = tuple_type (i32) [template]
    168. 

  168. // CHECK:STDOUT:   %.5: (i32,) = tuple_value (%.2) [template]
    169. 

  169. // CHECK:STDOUT: }
    170. 

  170. // CHECK:STDOUT:
    171. 

  171. // CHECK:STDOUT: file {
    172. 

  172. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    173. 

  173. // CHECK:STDOUT:     .A = %import_ref.1
    174. 

  174. // CHECK:STDOUT:     .B = %import_ref.2
    175. 

  175. // CHECK:STDOUT:     .C = %import_ref.3
    176. 

  176. // CHECK:STDOUT:     .D = %import_ref.4
    177. 

  177. // CHECK:STDOUT:     .a = %a
    178. 

  178. // CHECK:STDOUT:     .b = %b
    179. 

  179. // CHECK:STDOUT:     .c = %c
    180. 

  180. // CHECK:STDOUT:   }
    181. 

  181. // CHECK:STDOUT:   %import_ref.1: <function> = import_ref ir1, inst+1, loc_15 [template = imports.%A]
    182. 

  182. // CHECK:STDOUT:   %import_ref.2: <function> = import_ref ir1, inst+6, loc_24 [template = imports.%B]
    183. 

  183. // CHECK:STDOUT:   %import_ref.3: <function> = import_ref ir1, inst+20, loc_39 [template = imports.%C]
    184. 

  184. // CHECK:STDOUT:   %import_ref.4 = import_ref ir1, inst+30, unloaded
    185. 

  185. // CHECK:STDOUT:   %.loc6_9.1: () = tuple_literal ()
    186. 

  186. // CHECK:STDOUT:   %.loc6_9.2: type = converted %.loc6_9.1, constants.%.1 [template = constants.%.1]
    187. 

  187. // CHECK:STDOUT:   %a.var: ref () = var a
    188. 

  188. // CHECK:STDOUT:   %a: ref () = bind_name a, %a.var
    189. 

  189. // CHECK:STDOUT:   %b.var: ref i32 = var b
    190. 

  190. // CHECK:STDOUT:   %b: ref i32 = bind_name b, %b.var
    191. 

  191. // CHECK:STDOUT:   %.loc8: type = struct_type {.c: i32} [template = constants.%.3]
    192. 

  192. // CHECK:STDOUT:   %c.var: ref {.c: i32} = var c
    193. 

  193. // CHECK:STDOUT:   %c: ref {.c: i32} = bind_name c, %c.var
    194. 

  194. // CHECK:STDOUT: }
    195. 

  195. // CHECK:STDOUT:
    196. 

  196. // CHECK:STDOUT: fn @A();
    197. 

  197. // CHECK:STDOUT:
    198. 

  198. // CHECK:STDOUT: fn @B(%b: i32) -> i32;
    199. 

  199. // CHECK:STDOUT:
    200. 

  200. // CHECK:STDOUT: fn @C(%c: (i32,)) -> {.c: i32};
    201. 

  201. // CHECK:STDOUT:
    202. 

  202. // CHECK:STDOUT: fn @__global_init() {
    203. 

  203. // CHECK:STDOUT: !entry:
    204. 

  204. // CHECK:STDOUT:   %A.ref: <function> = name_ref A, file.%import_ref.1 [template = imports.%A]
    205. 

  205. // CHECK:STDOUT:   %.loc6: init () = call %A.ref()
    206. 

  206. // CHECK:STDOUT:   assign file.%a.var, %.loc6
    207. 

  207. // CHECK:STDOUT:   %B.ref: <function> = name_ref B, file.%import_ref.2 [template = imports.%B]
    208. 

  208. // CHECK:STDOUT:   %.loc7_16: i32 = int_literal 1 [template = constants.%.2]
    209. 

  209. // CHECK:STDOUT:   %.loc7_15: init i32 = call %B.ref(%.loc7_16)
    210. 

  210. // CHECK:STDOUT:   assign file.%b.var, %.loc7_15
    211. 

  211. // CHECK:STDOUT:   %C.ref: <function> = name_ref C, file.%import_ref.3 [template = imports.%C]
    212. 

  212. // CHECK:STDOUT:   %.loc8_23: i32 = int_literal 1 [template = constants.%.2]
    213. 

  213. // CHECK:STDOUT:   %.loc8_25.1: (i32,) = tuple_literal (%.loc8_23)
    214. 

  214. // CHECK:STDOUT:   %.loc8_25.2: (i32,) = tuple_value (%.loc8_23) [template = constants.%.5]
    215. 

  215. // CHECK:STDOUT:   %.loc8_25.3: (i32,) = converted %.loc8_25.1, %.loc8_25.2 [template = constants.%.5]
    216. 

  216. // CHECK:STDOUT:   %.loc8_21: init {.c: i32} = call %C.ref(%.loc8_25.3)
    217. 

  217. // CHECK:STDOUT:   assign file.%c.var, %.loc8_21
    218. 

  218. // CHECK:STDOUT:   return
    219. 

  219. // CHECK:STDOUT: }
    220. 

  220. // CHECK:STDOUT:
    221. 

  221. // CHECK:STDOUT: --- fail_def_ownership.carbon
    222. 

  222. // CHECK:STDOUT:
    223. 

  223. // CHECK:STDOUT: file {
    224. 

  224. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    225. 

  225. // CHECK:STDOUT:     .C = %import_ref.3
    226. 

  226. // CHECK:STDOUT:     .D = %import_ref.4
    227. 

  227. // CHECK:STDOUT:     .A = %A
    228. 

  228. // CHECK:STDOUT:     .B = %B
    229. 

  229. // CHECK:STDOUT:   }
    230. 

  230. // CHECK:STDOUT:   %import_ref.1: <function> = import_ref ir1, inst+1, loaded [template = imports.%A]
    231. 

  231. // CHECK:STDOUT:   %import_ref.2: <function> = import_ref ir1, inst+6, loaded [template = imports.%B]
    232. 

  232. // CHECK:STDOUT:   %import_ref.3 = import_ref ir1, inst+20, unloaded
    233. 

  233. // CHECK:STDOUT:   %import_ref.4 = import_ref ir1, inst+30, unloaded
    234. 

  234. // CHECK:STDOUT:   %A: <function> = fn_decl @A [template] {}
    235. 

  235. // CHECK:STDOUT:   %B: <function> = fn_decl @B [template] {
    236. 

  236. // CHECK:STDOUT:     %b.loc27_6.1: i32 = param b
    237. 

  237. // CHECK:STDOUT:     %b.loc27_6.2: i32 = bind_name b, %b.loc27_6.1
    238. 

  238. // CHECK:STDOUT:     %return.var: ref i32 = var <return slot>
    239. 

  239. // CHECK:STDOUT:   }
    240. 

  240. // CHECK:STDOUT: }
    241. 

  241. // CHECK:STDOUT:
    242. 

  242. // CHECK:STDOUT: fn @A() {
    243. 

  243. // CHECK:STDOUT: !entry:
    244. 

  244. // CHECK:STDOUT:   return
    245. 

  245. // CHECK:STDOUT: }
    246. 

  246. // CHECK:STDOUT:
    247. 

  247. // CHECK:STDOUT: fn @B(%b: i32) -> i32;
    248. 

  248. // CHECK:STDOUT:
    249. 

  249. // CHECK:STDOUT: --- redecl_then_def.carbon
    250. 

  250. // CHECK:STDOUT:
    251. 

  251. // CHECK:STDOUT: file {
    252. 

  252. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    253. 

  253. // CHECK:STDOUT:     .A = %A.loc6
    254. 

  254. // CHECK:STDOUT:   }
    255. 

  255. // CHECK:STDOUT:   %import_ref: <function> = import_ref ir1, inst+1, loaded [template = imports.%A]
    256. 

  256. // CHECK:STDOUT:   %A.loc6: <function> = fn_decl @A [template] {}
    257. 

  257. // CHECK:STDOUT:   %A.loc7: <function> = fn_decl @A [template] {}
    258. 

  258. // CHECK:STDOUT: }
    259. 

  259. // CHECK:STDOUT:
    260. 

  260. // CHECK:STDOUT: fn @A() {
    261. 

  261. // CHECK:STDOUT: !entry:
    262. 

  262. // CHECK:STDOUT:   return
    263. 

  263. // CHECK:STDOUT: }
    264. 

  264. // CHECK:STDOUT:
    265. 

  265. // CHECK:STDOUT: --- fail_mix_extern_decl.carbon
    266. 

  266. // CHECK:STDOUT:
    267. 

  267. // CHECK:STDOUT: file {
    268. 

  268. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    269. 

  269. // CHECK:STDOUT:     .A = %import_ref.1
    270. 

  270. // CHECK:STDOUT:     .B = %import_ref.2
    271. 

  271. // CHECK:STDOUT:     .C = %import_ref.3
    272. 

  272. // CHECK:STDOUT:     .D = %D.loc13
    273. 

  273. // CHECK:STDOUT:   }
    274. 

  274. // CHECK:STDOUT:   %import_ref.1 = import_ref ir1, inst+1, unloaded
    275. 

  275. // CHECK:STDOUT:   %import_ref.2 = import_ref ir1, inst+6, unloaded
    276. 

  276. // CHECK:STDOUT:   %import_ref.3 = import_ref ir1, inst+20, unloaded
    277. 

  277. // CHECK:STDOUT:   %import_ref.4: <function> = import_ref ir1, inst+30, loaded [template = imports.%D]
    278. 

  278. // CHECK:STDOUT:   %D.loc6: <function> = fn_decl @D [template] {}
    279. 

  279. // CHECK:STDOUT:   %D.loc13: <function> = fn_decl @D [template] {}
    280. 

  280. // CHECK:STDOUT: }
    281. 

  281. // CHECK:STDOUT:
    282. 

  282. // CHECK:STDOUT: fn @D() {
    283. 

  283. // CHECK:STDOUT: !entry:
    284. 

  284. // CHECK:STDOUT:   return
    285. 

  285. // CHECK:STDOUT: }
    286. 

  286. // CHECK:STDOUT:
    287.