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carbon-lang
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carbon-lang
/
toolchain
/
check
/
testdata
/
interface
/
no_prelude
/
import.carbon

import.carbon 16 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. // TIP: To test this file alone, run:
    7. 

  7. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interface/no_prelude/import.carbon
    8. 

  8. // TIP: To dump output, run:
    9. 

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/no_prelude/import.carbon
    10. 

  10. 

  11. // --- a.carbon
    12. 

  12. 

  13. library "[[@TEST_NAME]]";
    14. 

  14. 

  15. interface Empty {
    16. 

  16. }
    17. 

  17. 

  18. interface Basic {
    19. 

  19.   let T:! type;
    20. 

  20.   fn F();
    21. 

  21. }
    22. 

  22. 

  23. // TODO: Implement merging of interface on import.
    24. 

  24. // interface ForwardDeclared;
    25. 

  25. 

  26. interface ForwardDeclared {
    27. 

  27.   let T:! type;
    28. 

  28.   fn F();
    29. 

  29. }
    30. 

  30. 

  31. var f_ref: {.f: ForwardDeclared};
    32. 

  32. 

  33. // --- b.carbon
    34. 

  34. 

  35. library "[[@TEST_NAME]]";
    36. 

  36. 

  37. import library "a";
    38. 

  38. 

  39. fn UseEmpty(e: Empty) {}
    40. 

  40. fn UseBasic(e: Basic) {}
    41. 

  41. fn UseForwardDeclared(f: ForwardDeclared) {}
    42. 

  42. 

  43. alias UseBasicT = Basic.T;
    44. 

  44. alias UseBasicF = Basic.F;
    45. 

  45. 

  46. alias UseForwardDeclaredT = ForwardDeclared.T;
    47. 

  47. alias UseForwardDeclaredF = ForwardDeclared.F;
    48. 

  48. 

  49. var f: ForwardDeclared* = &f_ref.f;
    50. 

  50. 

  51. // CHECK:STDOUT: --- a.carbon
    52. 

  52. // CHECK:STDOUT:
    53. 

  53. // CHECK:STDOUT: constants {
    54. 

  54. // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
    55. 

  55. // CHECK:STDOUT:   %Self.193: %Empty.type = bind_symbolic_name Self, 0 [symbolic]
    56. 

  56. // CHECK:STDOUT:   %Basic.type: type = facet_type <@Basic> [concrete]
    57. 

  57. // CHECK:STDOUT:   %Self.1c7: %Basic.type = bind_symbolic_name Self, 0 [symbolic]
    58. 

  58. // CHECK:STDOUT:   %Basic.assoc_type: type = assoc_entity_type @Basic [concrete]
    59. 

  59. // CHECK:STDOUT:   %assoc0.0d9: %Basic.assoc_type = assoc_entity element0, @Basic.%T [concrete]
    60. 

  60. // CHECK:STDOUT:   %F.type.320: type = fn_type @F.1 [concrete]
    61. 

  61. // CHECK:STDOUT:   %F.952: %F.type.320 = struct_value () [concrete]
    62. 

  62. // CHECK:STDOUT:   %assoc1.9b4: %Basic.assoc_type = assoc_entity element1, @Basic.%F.decl [concrete]
    63. 

  63. // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
    64. 

  64. // CHECK:STDOUT:   %Self.efa: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
    65. 

  65. // CHECK:STDOUT:   %ForwardDeclared.assoc_type: type = assoc_entity_type @ForwardDeclared [concrete]
    66. 

  66. // CHECK:STDOUT:   %assoc0.27c: %ForwardDeclared.assoc_type = assoc_entity element0, @ForwardDeclared.%T [concrete]
    67. 

  67. // CHECK:STDOUT:   %F.type.505: type = fn_type @F.2 [concrete]
    68. 

  68. // CHECK:STDOUT:   %F.eb5: %F.type.505 = struct_value () [concrete]
    69. 

  69. // CHECK:STDOUT:   %assoc1.c80: %ForwardDeclared.assoc_type = assoc_entity element1, @ForwardDeclared.%F.decl [concrete]
    70. 

  70. // CHECK:STDOUT:   %struct_type.f: type = struct_type {.f: %ForwardDeclared.type} [concrete]
    71. 

  71. // CHECK:STDOUT: }
    72. 

  72. // CHECK:STDOUT:
    73. 

  73. // CHECK:STDOUT: file {
    74. 

  74. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    75. 

  75. // CHECK:STDOUT:     .Empty = %Empty.decl
    76. 

  76. // CHECK:STDOUT:     .Basic = %Basic.decl
    77. 

  77. // CHECK:STDOUT:     .ForwardDeclared = %ForwardDeclared.decl
    78. 

  78. // CHECK:STDOUT:     .f_ref = %f_ref
    79. 

  79. // CHECK:STDOUT:   }
    80. 

  80. // CHECK:STDOUT:   %Empty.decl: type = interface_decl @Empty [concrete = constants.%Empty.type] {} {}
    81. 

  81. // CHECK:STDOUT:   %Basic.decl: type = interface_decl @Basic [concrete = constants.%Basic.type] {} {}
    82. 

  82. // CHECK:STDOUT:   %ForwardDeclared.decl: type = interface_decl @ForwardDeclared [concrete = constants.%ForwardDeclared.type] {} {}
    83. 

  83. // CHECK:STDOUT:   name_binding_decl {
    84. 

  84. // CHECK:STDOUT:     %f_ref.patt: %struct_type.f = binding_pattern f_ref
    85. 

  85. // CHECK:STDOUT:     %.loc20_1: %struct_type.f = var_pattern %f_ref.patt
    86. 

  86. // CHECK:STDOUT:   }
    87. 

  87. // CHECK:STDOUT:   %f_ref.var: ref %struct_type.f = var f_ref
    88. 

  88. // CHECK:STDOUT:   %.loc20_32: type = splice_block %struct_type.f [concrete = constants.%struct_type.f] {
    89. 

  89. // CHECK:STDOUT:     %ForwardDeclared.ref: type = name_ref ForwardDeclared, %ForwardDeclared.decl [concrete = constants.%ForwardDeclared.type]
    90. 

  90. // CHECK:STDOUT:     %struct_type.f: type = struct_type {.f: %ForwardDeclared.type} [concrete = constants.%struct_type.f]
    91. 

  91. // CHECK:STDOUT:   }
    92. 

  92. // CHECK:STDOUT:   %f_ref: ref %struct_type.f = bind_name f_ref, %f_ref.var
    93. 

  93. // CHECK:STDOUT: }
    94. 

  94. // CHECK:STDOUT:
    95. 

  95. // CHECK:STDOUT: interface @Empty {
    96. 

  96. // CHECK:STDOUT:   %Self: %Empty.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.193]
    97. 

  97. // CHECK:STDOUT:
    98. 

  98. // CHECK:STDOUT: !members:
    99. 

  99. // CHECK:STDOUT:   .Self = %Self
    100. 

  100. // CHECK:STDOUT:   witness = ()
    101. 

  101. // CHECK:STDOUT: }
    102. 

  102. // CHECK:STDOUT:
    103. 

  103. // CHECK:STDOUT: interface @Basic {
    104. 

  104. // CHECK:STDOUT:   %Self: %Basic.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1c7]
    105. 

  105. // CHECK:STDOUT:   %T: type = assoc_const_decl @T.loc8 [concrete] {
    106. 

  106. // CHECK:STDOUT:     %assoc0: %Basic.assoc_type = assoc_entity element0, @Basic.%T [concrete = constants.%assoc0.0d9]
    107. 

  107. // CHECK:STDOUT:   }
    108. 

  108. // CHECK:STDOUT:   %F.decl: %F.type.320 = fn_decl @F.1 [concrete = constants.%F.952] {} {}
    109. 

  109. // CHECK:STDOUT:   %assoc1: %Basic.assoc_type = assoc_entity element1, %F.decl [concrete = constants.%assoc1.9b4]
    110. 

  110. // CHECK:STDOUT:
    111. 

  111. // CHECK:STDOUT: !members:
    112. 

  112. // CHECK:STDOUT:   .Self = %Self
    113. 

  113. // CHECK:STDOUT:   .T = @T.loc8.%assoc0
    114. 

  114. // CHECK:STDOUT:   .F = %assoc1
    115. 

  115. // CHECK:STDOUT:   witness = (%T, %F.decl)
    116. 

  116. // CHECK:STDOUT: }
    117. 

  117. // CHECK:STDOUT:
    118. 

  118. // CHECK:STDOUT: interface @ForwardDeclared {
    119. 

  119. // CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.efa]
    120. 

  120. // CHECK:STDOUT:   %T: type = assoc_const_decl @T.loc16 [concrete] {
    121. 

  121. // CHECK:STDOUT:     %assoc0: %ForwardDeclared.assoc_type = assoc_entity element0, @ForwardDeclared.%T [concrete = constants.%assoc0.27c]
    122. 

  122. // CHECK:STDOUT:   }
    123. 

  123. // CHECK:STDOUT:   %F.decl: %F.type.505 = fn_decl @F.2 [concrete = constants.%F.eb5] {} {}
    124. 

  124. // CHECK:STDOUT:   %assoc1: %ForwardDeclared.assoc_type = assoc_entity element1, %F.decl [concrete = constants.%assoc1.c80]
    125. 

  125. // CHECK:STDOUT:
    126. 

  126. // CHECK:STDOUT: !members:
    127. 

  127. // CHECK:STDOUT:   .Self = %Self
    128. 

  128. // CHECK:STDOUT:   .T = @T.loc16.%assoc0
    129. 

  129. // CHECK:STDOUT:   .F = %assoc1
    130. 

  130. // CHECK:STDOUT:   witness = (%T, %F.decl)
    131. 

  131. // CHECK:STDOUT: }
    132. 

  132. // CHECK:STDOUT:
    133. 

  133. // CHECK:STDOUT: generic assoc_const @T.loc8(@Basic.%Self: %Basic.type) {
    134. 

  134. // CHECK:STDOUT:   assoc_const T:! type;
    135. 

  135. // CHECK:STDOUT: }
    136. 

  136. // CHECK:STDOUT:
    137. 

  137. // CHECK:STDOUT: generic assoc_const @T.loc16(@ForwardDeclared.%Self: %ForwardDeclared.type) {
    138. 

  138. // CHECK:STDOUT:   assoc_const T:! type;
    139. 

  139. // CHECK:STDOUT: }
    140. 

  140. // CHECK:STDOUT:
    141. 

  141. // CHECK:STDOUT: generic fn @F.1(@Basic.%Self: %Basic.type) {
    142. 

  142. // CHECK:STDOUT:   fn();
    143. 

  143. // CHECK:STDOUT: }
    144. 

  144. // CHECK:STDOUT:
    145. 

  145. // CHECK:STDOUT: generic fn @F.2(@ForwardDeclared.%Self: %ForwardDeclared.type) {
    146. 

  146. // CHECK:STDOUT:   fn();
    147. 

  147. // CHECK:STDOUT: }
    148. 

  148. // CHECK:STDOUT:
    149. 

  149. // CHECK:STDOUT: specific @T.loc8(constants.%Self.1c7) {}
    150. 

  150. // CHECK:STDOUT:
    151. 

  151. // CHECK:STDOUT: specific @F.1(constants.%Self.1c7) {}
    152. 

  152. // CHECK:STDOUT:
    153. 

  153. // CHECK:STDOUT: specific @T.loc16(constants.%Self.efa) {}
    154. 

  154. // CHECK:STDOUT:
    155. 

  155. // CHECK:STDOUT: specific @F.2(constants.%Self.efa) {}
    156. 

  156. // CHECK:STDOUT:
    157. 

  157. // CHECK:STDOUT: --- b.carbon
    158. 

  158. // CHECK:STDOUT:
    159. 

  159. // CHECK:STDOUT: constants {
    160. 

  160. // CHECK:STDOUT:   %Empty.type: type = facet_type <@Empty> [concrete]
    161. 

  161. // CHECK:STDOUT:   %UseEmpty.type: type = fn_type @UseEmpty [concrete]
    162. 

  162. // CHECK:STDOUT:   %UseEmpty: %UseEmpty.type = struct_value () [concrete]
    163. 

  163. // CHECK:STDOUT:   %Basic.type: type = facet_type <@Basic> [concrete]
    164. 

  164. // CHECK:STDOUT:   %UseBasic.type: type = fn_type @UseBasic [concrete]
    165. 

  165. // CHECK:STDOUT:   %UseBasic: %UseBasic.type = struct_value () [concrete]
    166. 

  166. // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [concrete]
    167. 

  167. // CHECK:STDOUT:   %UseForwardDeclared.type: type = fn_type @UseForwardDeclared [concrete]
    168. 

  168. // CHECK:STDOUT:   %UseForwardDeclared: %UseForwardDeclared.type = struct_value () [concrete]
    169. 

  169. // CHECK:STDOUT:   %Basic.assoc_type: type = assoc_entity_type @Basic [concrete]
    170. 

  170. // CHECK:STDOUT:   %assoc0.fee: %Basic.assoc_type = assoc_entity element0, imports.%Main.import_ref.a4a [concrete]
    171. 

  171. // CHECK:STDOUT:   %assoc1.4ea: %Basic.assoc_type = assoc_entity element1, imports.%Main.import_ref.0be [concrete]
    172. 

  172. // CHECK:STDOUT:   %ForwardDeclared.assoc_type: type = assoc_entity_type @ForwardDeclared [concrete]
    173. 

  173. // CHECK:STDOUT:   %assoc0.d40: %ForwardDeclared.assoc_type = assoc_entity element0, imports.%Main.import_ref.69a [concrete]
    174. 

  174. // CHECK:STDOUT:   %assoc1.e3d: %ForwardDeclared.assoc_type = assoc_entity element1, imports.%Main.import_ref.1cc [concrete]
    175. 

  175. // CHECK:STDOUT:   %ptr: type = ptr_type %ForwardDeclared.type [concrete]
    176. 

  176. // CHECK:STDOUT:   %struct_type.f: type = struct_type {.f: %ForwardDeclared.type} [concrete]
    177. 

  177. // CHECK:STDOUT: }
    178. 

  178. // CHECK:STDOUT:
    179. 

  179. // CHECK:STDOUT: imports {
    180. 

  180. // CHECK:STDOUT:   %Main.Empty: type = import_ref Main//a, Empty, loaded [concrete = constants.%Empty.type]
    181. 

  181. // CHECK:STDOUT:   %Main.Basic: type = import_ref Main//a, Basic, loaded [concrete = constants.%Basic.type]
    182. 

  182. // CHECK:STDOUT:   %Main.ForwardDeclared: type = import_ref Main//a, ForwardDeclared, loaded [concrete = constants.%ForwardDeclared.type]
    183. 

  183. // CHECK:STDOUT:   %Main.f_ref: ref %struct_type.f = import_ref Main//a, f_ref, loaded
    184. 

  184. // CHECK:STDOUT:   %Main.import_ref.cc0 = import_ref Main//a, inst16 [no loc], unloaded
    185. 

  185. // CHECK:STDOUT:   %Main.import_ref.37f = import_ref Main//a, inst20 [no loc], unloaded
    186. 

  186. // CHECK:STDOUT:   %Main.import_ref.3d5: %Basic.assoc_type = import_ref Main//a, loc8_8, loaded [concrete = constants.%assoc0.fee]
    187. 

  187. // CHECK:STDOUT:   %Main.import_ref.760: %Basic.assoc_type = import_ref Main//a, loc9_9, loaded [concrete = constants.%assoc1.4ea]
    188. 

  188. // CHECK:STDOUT:   %Main.T.44f = import_ref Main//a, T, unloaded
    189. 

  189. // CHECK:STDOUT:   %Main.F.eea = import_ref Main//a, F, unloaded
    190. 

  190. // CHECK:STDOUT:   %Main.import_ref.52b = import_ref Main//a, inst34 [no loc], unloaded
    191. 

  191. // CHECK:STDOUT:   %Main.import_ref.ad1: %ForwardDeclared.assoc_type = import_ref Main//a, loc16_8, loaded [concrete = constants.%assoc0.d40]
    192. 

  192. // CHECK:STDOUT:   %Main.import_ref.339: %ForwardDeclared.assoc_type = import_ref Main//a, loc17_9, loaded [concrete = constants.%assoc1.e3d]
    193. 

  193. // CHECK:STDOUT:   %Main.T.6ee = import_ref Main//a, T, unloaded
    194. 

  194. // CHECK:STDOUT:   %Main.F.5d0 = import_ref Main//a, F, unloaded
    195. 

  195. // CHECK:STDOUT: }
    196. 

  196. // CHECK:STDOUT:
    197. 

  197. // CHECK:STDOUT: file {
    198. 

  198. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    199. 

  199. // CHECK:STDOUT:     .Empty = imports.%Main.Empty
    200. 

  200. // CHECK:STDOUT:     .Basic = imports.%Main.Basic
    201. 

  201. // CHECK:STDOUT:     .ForwardDeclared = imports.%Main.ForwardDeclared
    202. 

  202. // CHECK:STDOUT:     .f_ref = imports.%Main.f_ref
    203. 

  203. // CHECK:STDOUT:     .UseEmpty = %UseEmpty.decl
    204. 

  204. // CHECK:STDOUT:     .UseBasic = %UseBasic.decl
    205. 

  205. // CHECK:STDOUT:     .UseForwardDeclared = %UseForwardDeclared.decl
    206. 

  206. // CHECK:STDOUT:     .UseBasicT = %UseBasicT
    207. 

  207. // CHECK:STDOUT:     .UseBasicF = %UseBasicF
    208. 

  208. // CHECK:STDOUT:     .UseForwardDeclaredT = %UseForwardDeclaredT
    209. 

  209. // CHECK:STDOUT:     .UseForwardDeclaredF = %UseForwardDeclaredF
    210. 

  210. // CHECK:STDOUT:     .f = %f
    211. 

  211. // CHECK:STDOUT:   }
    212. 

  212. // CHECK:STDOUT:   %default.import = import <none>
    213. 

  213. // CHECK:STDOUT:   %UseEmpty.decl: %UseEmpty.type = fn_decl @UseEmpty [concrete = constants.%UseEmpty] {
    214. 

  214. // CHECK:STDOUT:     %e.patt: %Empty.type = binding_pattern e
    215. 

  215. // CHECK:STDOUT:     %e.param_patt: %Empty.type = value_param_pattern %e.patt, call_param0
    216. 

  216. // CHECK:STDOUT:   } {
    217. 

  217. // CHECK:STDOUT:     %e.param: %Empty.type = value_param call_param0
    218. 

  218. // CHECK:STDOUT:     %Empty.ref: type = name_ref Empty, imports.%Main.Empty [concrete = constants.%Empty.type]
    219. 

  219. // CHECK:STDOUT:     %e: %Empty.type = bind_name e, %e.param
    220. 

  220. // CHECK:STDOUT:   }
    221. 

  221. // CHECK:STDOUT:   %UseBasic.decl: %UseBasic.type = fn_decl @UseBasic [concrete = constants.%UseBasic] {
    222. 

  222. // CHECK:STDOUT:     %e.patt: %Basic.type = binding_pattern e
    223. 

  223. // CHECK:STDOUT:     %e.param_patt: %Basic.type = value_param_pattern %e.patt, call_param0
    224. 

  224. // CHECK:STDOUT:   } {
    225. 

  225. // CHECK:STDOUT:     %e.param: %Basic.type = value_param call_param0
    226. 

  226. // CHECK:STDOUT:     %Basic.ref: type = name_ref Basic, imports.%Main.Basic [concrete = constants.%Basic.type]
    227. 

  227. // CHECK:STDOUT:     %e: %Basic.type = bind_name e, %e.param
    228. 

  228. // CHECK:STDOUT:   }
    229. 

  229. // CHECK:STDOUT:   %UseForwardDeclared.decl: %UseForwardDeclared.type = fn_decl @UseForwardDeclared [concrete = constants.%UseForwardDeclared] {
    230. 

  230. // CHECK:STDOUT:     %f.patt: %ForwardDeclared.type = binding_pattern f
    231. 

  231. // CHECK:STDOUT:     %f.param_patt: %ForwardDeclared.type = value_param_pattern %f.patt, call_param0
    232. 

  232. // CHECK:STDOUT:   } {
    233. 

  233. // CHECK:STDOUT:     %f.param: %ForwardDeclared.type = value_param call_param0
    234. 

  234. // CHECK:STDOUT:     %ForwardDeclared.ref: type = name_ref ForwardDeclared, imports.%Main.ForwardDeclared [concrete = constants.%ForwardDeclared.type]
    235. 

  235. // CHECK:STDOUT:     %f: %ForwardDeclared.type = bind_name f, %f.param
    236. 

  236. // CHECK:STDOUT:   }
    237. 

  237. // CHECK:STDOUT:   %Basic.ref.loc10: type = name_ref Basic, imports.%Main.Basic [concrete = constants.%Basic.type]
    238. 

  238. // CHECK:STDOUT:   %T.ref.loc10: %Basic.assoc_type = name_ref T, imports.%Main.import_ref.3d5 [concrete = constants.%assoc0.fee]
    239. 

  239. // CHECK:STDOUT:   %UseBasicT: %Basic.assoc_type = bind_alias UseBasicT, imports.%Main.import_ref.3d5 [concrete = constants.%assoc0.fee]
    240. 

  240. // CHECK:STDOUT:   %Basic.ref.loc11: type = name_ref Basic, imports.%Main.Basic [concrete = constants.%Basic.type]
    241. 

  241. // CHECK:STDOUT:   %F.ref.loc11: %Basic.assoc_type = name_ref F, imports.%Main.import_ref.760 [concrete = constants.%assoc1.4ea]
    242. 

  242. // CHECK:STDOUT:   %UseBasicF: %Basic.assoc_type = bind_alias UseBasicF, imports.%Main.import_ref.760 [concrete = constants.%assoc1.4ea]
    243. 

  243. // CHECK:STDOUT:   %ForwardDeclared.ref.loc13: type = name_ref ForwardDeclared, imports.%Main.ForwardDeclared [concrete = constants.%ForwardDeclared.type]
    244. 

  244. // CHECK:STDOUT:   %T.ref.loc13: %ForwardDeclared.assoc_type = name_ref T, imports.%Main.import_ref.ad1 [concrete = constants.%assoc0.d40]
    245. 

  245. // CHECK:STDOUT:   %UseForwardDeclaredT: %ForwardDeclared.assoc_type = bind_alias UseForwardDeclaredT, imports.%Main.import_ref.ad1 [concrete = constants.%assoc0.d40]
    246. 

  246. // CHECK:STDOUT:   %ForwardDeclared.ref.loc14: type = name_ref ForwardDeclared, imports.%Main.ForwardDeclared [concrete = constants.%ForwardDeclared.type]
    247. 

  247. // CHECK:STDOUT:   %F.ref.loc14: %ForwardDeclared.assoc_type = name_ref F, imports.%Main.import_ref.339 [concrete = constants.%assoc1.e3d]
    248. 

  248. // CHECK:STDOUT:   %UseForwardDeclaredF: %ForwardDeclared.assoc_type = bind_alias UseForwardDeclaredF, imports.%Main.import_ref.339 [concrete = constants.%assoc1.e3d]
    249. 

  249. // CHECK:STDOUT:   name_binding_decl {
    250. 

  250. // CHECK:STDOUT:     %f.patt: %ptr = binding_pattern f
    251. 

  251. // CHECK:STDOUT:     %.loc16_1: %ptr = var_pattern %f.patt
    252. 

  252. // CHECK:STDOUT:   }
    253. 

  253. // CHECK:STDOUT:   %f.var: ref %ptr = var f
    254. 

  254. // CHECK:STDOUT:   %.loc16_23: type = splice_block %ptr [concrete = constants.%ptr] {
    255. 

  255. // CHECK:STDOUT:     %ForwardDeclared.ref.loc16: type = name_ref ForwardDeclared, imports.%Main.ForwardDeclared [concrete = constants.%ForwardDeclared.type]
    256. 

  256. // CHECK:STDOUT:     %ptr: type = ptr_type %ForwardDeclared.ref.loc16 [concrete = constants.%ptr]
    257. 

  257. // CHECK:STDOUT:   }
    258. 

  258. // CHECK:STDOUT:   %f: ref %ptr = bind_name f, %f.var
    259. 

  259. // CHECK:STDOUT: }
    260. 

  260. // CHECK:STDOUT:
    261. 

  261. // CHECK:STDOUT: interface @Empty [from "a.carbon"] {
    262. 

  262. // CHECK:STDOUT: !members:
    263. 

  263. // CHECK:STDOUT:   .Self = imports.%Main.import_ref.cc0
    264. 

  264. // CHECK:STDOUT:   witness = ()
    265. 

  265. // CHECK:STDOUT: }
    266. 

  266. // CHECK:STDOUT:
    267. 

  267. // CHECK:STDOUT: interface @Basic [from "a.carbon"] {
    268. 

  268. // CHECK:STDOUT: !members:
    269. 

  269. // CHECK:STDOUT:   .Self = imports.%Main.import_ref.37f
    270. 

  270. // CHECK:STDOUT:   .T = imports.%Main.import_ref.3d5
    271. 

  271. // CHECK:STDOUT:   .F = imports.%Main.import_ref.760
    272. 

  272. // CHECK:STDOUT:   witness = (imports.%Main.T.44f, imports.%Main.F.eea)
    273. 

  273. // CHECK:STDOUT: }
    274. 

  274. // CHECK:STDOUT:
    275. 

  275. // CHECK:STDOUT: interface @ForwardDeclared [from "a.carbon"] {
    276. 

  276. // CHECK:STDOUT: !members:
    277. 

  277. // CHECK:STDOUT:   .Self = imports.%Main.import_ref.52b
    278. 

  278. // CHECK:STDOUT:   .T = imports.%Main.import_ref.ad1
    279. 

  279. // CHECK:STDOUT:   .F = imports.%Main.import_ref.339
    280. 

  280. // CHECK:STDOUT:   witness = (imports.%Main.T.6ee, imports.%Main.F.5d0)
    281. 

  281. // CHECK:STDOUT: }
    282. 

  282. // CHECK:STDOUT:
    283. 

  283. // CHECK:STDOUT: fn @UseEmpty(%e.param_patt: %Empty.type) {
    284. 

  284. // CHECK:STDOUT: !entry:
    285. 

  285. // CHECK:STDOUT:   return
    286. 

  286. // CHECK:STDOUT: }
    287. 

  287. // CHECK:STDOUT:
    288. 

  288. // CHECK:STDOUT: fn @UseBasic(%e.param_patt: %Basic.type) {
    289. 

  289. // CHECK:STDOUT: !entry:
    290. 

  290. // CHECK:STDOUT:   return
    291. 

  291. // CHECK:STDOUT: }
    292. 

  292. // CHECK:STDOUT:
    293. 

  293. // CHECK:STDOUT: fn @UseForwardDeclared(%f.param_patt: %ForwardDeclared.type) {
    294. 

  294. // CHECK:STDOUT: !entry:
    295. 

  295. // CHECK:STDOUT:   return
    296. 

  296. // CHECK:STDOUT: }
    297. 

  297. // CHECK:STDOUT:
    298. 

  298. // CHECK:STDOUT: fn @__global_init() {
    299. 

  299. // CHECK:STDOUT: !entry:
    300. 

  300. // CHECK:STDOUT:   %f_ref.ref: ref %struct_type.f = name_ref f_ref, imports.%Main.f_ref
    301. 

  301. // CHECK:STDOUT:   %.loc16: ref %ForwardDeclared.type = struct_access %f_ref.ref, element0
    302. 

  302. // CHECK:STDOUT:   %addr: %ptr = addr_of %.loc16
    303. 

  303. // CHECK:STDOUT:   assign file.%f.var, %addr
    304. 

  304. // CHECK:STDOUT:   return
    305. 

  305. // CHECK:STDOUT: }
    306. 

  306. // CHECK:STDOUT:
    307.