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self_in_signature.carbon

self_in_signature.carbon 13 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. interface UseSelf {
    8. 

  8.   fn F[self: Self](x: Self) -> Self;
    9. 

  9. }
    10. 

  10. 

  11. class C {}
    12. 

  12. 

  13. class D {}
    14. 

  14. 

  15. impl C as UseSelf {
    16. 

  16.   fn F[self: C](x: C) -> C { return {}; }
    17. 

  17. }
    18. 

  18. 

  19. impl D as UseSelf {
    20. 

  20.   fn F[self: Self](x: Self) -> Self { return {}; }
    21. 

  21. }
    22. 

  22. 

  23. interface SelfNested {
    24. 

  24.   fn F(x: (Self*, {.x: Self, .y: i32}));
    25. 

  25. }
    26. 

  26. 

  27. impl C as SelfNested {
    28. 

  28.   fn F(x: (C*, {.x: C, .y: i32}));
    29. 

  29. }
    30. 

  30. 

  31. impl D as SelfNested {
    32. 

  32.   fn F(x: (Self*, {.x: Self, .y: i32}));
    33. 

  33. }
    34. 

  34. 

  35. // CHECK:STDOUT: --- self_in_signature.carbon
    36. 

  36. // CHECK:STDOUT:
    37. 

  37. // CHECK:STDOUT: constants {
    38. 

  38. // CHECK:STDOUT:   %.1: type = interface_type @UseSelf [template]
    39. 

  39. // CHECK:STDOUT:   %.2: type = assoc_entity_type @UseSelf, <function> [template]
    40. 

  40. // CHECK:STDOUT:   %.3: <associated <function> in UseSelf> = assoc_entity element0, @UseSelf.%F [template]
    41. 

  41. // CHECK:STDOUT:   %C: type = class_type @C [template]
    42. 

  42. // CHECK:STDOUT:   %.4: type = struct_type {} [template]
    43. 

  43. // CHECK:STDOUT:   %D: type = class_type @D [template]
    44. 

  44. // CHECK:STDOUT:   %.5: type = tuple_type () [template]
    45. 

  45. // CHECK:STDOUT:   %.6: type = ptr_type {} [template]
    46. 

  46. // CHECK:STDOUT:   %.7: C = struct_value () [template]
    47. 

  47. // CHECK:STDOUT:   %.8: <witness> = interface_witness (@impl.1.%F) [template]
    48. 

  48. // CHECK:STDOUT:   %.9: D = struct_value () [template]
    49. 

  49. // CHECK:STDOUT:   %.10: <witness> = interface_witness (@impl.2.%F) [template]
    50. 

  50. // CHECK:STDOUT:   %.11: type = interface_type @SelfNested [template]
    51. 

  51. // CHECK:STDOUT:   %.12: type = ptr_type Self [symbolic]
    52. 

  52. // CHECK:STDOUT:   %.13: type = struct_type {.x: Self, .y: i32} [symbolic]
    53. 

  53. // CHECK:STDOUT:   %.14: type = tuple_type (type, type) [template]
    54. 

  54. // CHECK:STDOUT:   %.15: type = tuple_type (Self*, {.x: Self, .y: i32}) [symbolic]
    55. 

  55. // CHECK:STDOUT:   %.16: type = assoc_entity_type @SelfNested, <function> [template]
    56. 

  56. // CHECK:STDOUT:   %.17: <associated <function> in SelfNested> = assoc_entity element0, @SelfNested.%F [template]
    57. 

  57. // CHECK:STDOUT:   %.18: type = ptr_type C [template]
    58. 

  58. // CHECK:STDOUT:   %.19: type = struct_type {.x: C, .y: i32} [template]
    59. 

  59. // CHECK:STDOUT:   %.20: type = tuple_type (C*, {.x: C, .y: i32}) [template]
    60. 

  60. // CHECK:STDOUT:   %.21: <witness> = interface_witness (@impl.3.%F) [template]
    61. 

  61. // CHECK:STDOUT:   %.22: type = ptr_type D [template]
    62. 

  62. // CHECK:STDOUT:   %.23: type = struct_type {.x: D, .y: i32} [template]
    63. 

  63. // CHECK:STDOUT:   %.24: type = tuple_type (D*, {.x: D, .y: i32}) [template]
    64. 

  64. // CHECK:STDOUT:   %.25: <witness> = interface_witness (@impl.4.%F) [template]
    65. 

  65. // CHECK:STDOUT: }
    66. 

  66. // CHECK:STDOUT:
    67. 

  67. // CHECK:STDOUT: file {
    68. 

  68. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    69. 

  69. // CHECK:STDOUT:     .UseSelf = %UseSelf.decl
    70. 

  70. // CHECK:STDOUT:     .C = %C.decl
    71. 

  71. // CHECK:STDOUT:     .D = %D.decl
    72. 

  72. // CHECK:STDOUT:     .SelfNested = %SelfNested.decl
    73. 

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT:   %UseSelf.decl: type = interface_decl @UseSelf [template = constants.%.1] {}
    75. 

  75. // CHECK:STDOUT:   %C.decl: type = class_decl @C [template = constants.%C] {}
    76. 

  76. // CHECK:STDOUT:   %D.decl: type = class_decl @D [template = constants.%D] {}
    77. 

  77. // CHECK:STDOUT:   impl_decl @impl.1 {
    78. 

  78. // CHECK:STDOUT:     %C.ref.loc15: type = name_ref C, %C.decl [template = constants.%C]
    79. 

  79. // CHECK:STDOUT:     %UseSelf.ref.loc15: type = name_ref UseSelf, %UseSelf.decl [template = constants.%.1]
    80. 

  80. // CHECK:STDOUT:   }
    81. 

  81. // CHECK:STDOUT:   impl_decl @impl.2 {
    82. 

  82. // CHECK:STDOUT:     %D.ref.loc19: type = name_ref D, %D.decl [template = constants.%D]
    83. 

  83. // CHECK:STDOUT:     %UseSelf.ref.loc19: type = name_ref UseSelf, %UseSelf.decl [template = constants.%.1]
    84. 

  84. // CHECK:STDOUT:   }
    85. 

  85. // CHECK:STDOUT:   %SelfNested.decl: type = interface_decl @SelfNested [template = constants.%.11] {}
    86. 

  86. // CHECK:STDOUT:   impl_decl @impl.3 {
    87. 

  87. // CHECK:STDOUT:     %C.ref.loc27: type = name_ref C, %C.decl [template = constants.%C]
    88. 

  88. // CHECK:STDOUT:     %SelfNested.ref.loc27: type = name_ref SelfNested, %SelfNested.decl [template = constants.%.11]
    89. 

  89. // CHECK:STDOUT:   }
    90. 

  90. // CHECK:STDOUT:   impl_decl @impl.4 {
    91. 

  91. // CHECK:STDOUT:     %D.ref.loc31: type = name_ref D, %D.decl [template = constants.%D]
    92. 

  92. // CHECK:STDOUT:     %SelfNested.ref.loc31: type = name_ref SelfNested, %SelfNested.decl [template = constants.%.11]
    93. 

  93. // CHECK:STDOUT:   }
    94. 

  94. // CHECK:STDOUT: }
    95. 

  95. // CHECK:STDOUT:
    96. 

  96. // CHECK:STDOUT: interface @UseSelf {
    97. 

  97. // CHECK:STDOUT:   %Self: UseSelf = bind_symbolic_name Self [symbolic]
    98. 

  98. // CHECK:STDOUT:   %F: <function> = fn_decl @F.1 [template] {
    99. 

  99. // CHECK:STDOUT:     %Self.ref.loc8_14: UseSelf = name_ref Self, %Self [symbolic = %Self]
    100. 

  100. // CHECK:STDOUT:     %.loc8_14.1: type = facet_type_access %Self.ref.loc8_14 [symbolic = %Self]
    101. 

  101. // CHECK:STDOUT:     %.loc8_14.2: type = converted %Self.ref.loc8_14, %.loc8_14.1 [symbolic = %Self]
    102. 

  102. // CHECK:STDOUT:     %self.loc8_8.1: Self = param self
    103. 

  103. // CHECK:STDOUT:     %self.loc8_8.2: Self = bind_name self, %self.loc8_8.1
    104. 

  104. // CHECK:STDOUT:     %Self.ref.loc8_23: UseSelf = name_ref Self, %Self [symbolic = %Self]
    105. 

  105. // CHECK:STDOUT:     %.loc8_23.1: type = facet_type_access %Self.ref.loc8_23 [symbolic = %Self]
    106. 

  106. // CHECK:STDOUT:     %.loc8_23.2: type = converted %Self.ref.loc8_23, %.loc8_23.1 [symbolic = %Self]
    107. 

  107. // CHECK:STDOUT:     %x.loc8_20.1: Self = param x
    108. 

  108. // CHECK:STDOUT:     %x.loc8_20.2: Self = bind_name x, %x.loc8_20.1
    109. 

  109. // CHECK:STDOUT:     %Self.ref.loc8_32: UseSelf = name_ref Self, %Self [symbolic = %Self]
    110. 

  110. // CHECK:STDOUT:     %.loc8_32.1: type = facet_type_access %Self.ref.loc8_32 [symbolic = %Self]
    111. 

  111. // CHECK:STDOUT:     %.loc8_32.2: type = converted %Self.ref.loc8_32, %.loc8_32.1 [symbolic = %Self]
    112. 

  112. // CHECK:STDOUT:     %return.var: ref Self = var <return slot>
    113. 

  113. // CHECK:STDOUT:   }
    114. 

  114. // CHECK:STDOUT:   %.loc8_36: <associated <function> in UseSelf> = assoc_entity element0, %F [template = constants.%.3]
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: !members:
    117. 

  117. // CHECK:STDOUT:   .Self = %Self
    118. 

  118. // CHECK:STDOUT:   .F = %.loc8_36
    119. 

  119. // CHECK:STDOUT:   witness = (%F)
    120. 

  120. // CHECK:STDOUT: }
    121. 

  121. // CHECK:STDOUT:
    122. 

  122. // CHECK:STDOUT: interface @SelfNested {
    123. 

  123. // CHECK:STDOUT:   %Self: SelfNested = bind_symbolic_name Self [symbolic]
    124. 

  124. // CHECK:STDOUT:   %F: <function> = fn_decl @F.4 [template] {
    125. 

  125. // CHECK:STDOUT:     %Self.ref.loc24_12: SelfNested = name_ref Self, %Self [symbolic = %Self]
    126. 

  126. // CHECK:STDOUT:     %.loc24_16.1: type = facet_type_access %Self.ref.loc24_12 [symbolic = %Self]
    127. 

  127. // CHECK:STDOUT:     %.loc24_12: type = converted %Self.ref.loc24_12, %.loc24_16.1 [symbolic = %Self]
    128. 

  128. // CHECK:STDOUT:     %.loc24_16.2: type = ptr_type Self [symbolic = constants.%.12]
    129. 

  129. // CHECK:STDOUT:     %Self.ref.loc24_24: SelfNested = name_ref Self, %Self [symbolic = %Self]
    130. 

  130. // CHECK:STDOUT:     %.loc24_24.1: type = facet_type_access %Self.ref.loc24_24 [symbolic = %Self]
    131. 

  131. // CHECK:STDOUT:     %.loc24_24.2: type = converted %Self.ref.loc24_24, %.loc24_24.1 [symbolic = %Self]
    132. 

  132. // CHECK:STDOUT:     %.loc24_37: type = struct_type {.x: Self, .y: i32} [symbolic = constants.%.13]
    133. 

  133. // CHECK:STDOUT:     %.loc24_38.1: (type, type) = tuple_literal (%.loc24_16.2, %.loc24_37)
    134. 

  134. // CHECK:STDOUT:     %.loc24_38.2: type = converted %.loc24_38.1, constants.%.15 [symbolic = constants.%.15]
    135. 

  135. // CHECK:STDOUT:     %x.loc24_8.1: (Self*, {.x: Self, .y: i32}) = param x
    136. 

  136. // CHECK:STDOUT:     %x.loc24_8.2: (Self*, {.x: Self, .y: i32}) = bind_name x, %x.loc24_8.1
    137. 

  137. // CHECK:STDOUT:   }
    138. 

  138. // CHECK:STDOUT:   %.loc24_40: <associated <function> in SelfNested> = assoc_entity element0, %F [template = constants.%.17]
    139. 

  139. // CHECK:STDOUT:
    140. 

  140. // CHECK:STDOUT: !members:
    141. 

  141. // CHECK:STDOUT:   .Self = %Self
    142. 

  142. // CHECK:STDOUT:   .F = %.loc24_40
    143. 

  143. // CHECK:STDOUT:   witness = (%F)
    144. 

  144. // CHECK:STDOUT: }
    145. 

  145. // CHECK:STDOUT:
    146. 

  146. // CHECK:STDOUT: impl @impl.1: C as UseSelf {
    147. 

  147. // CHECK:STDOUT:   %F: <function> = fn_decl @F.2 [template] {
    148. 

  148. // CHECK:STDOUT:     %C.ref.loc16_14: type = name_ref C, file.%C.decl [template = constants.%C]
    149. 

  149. // CHECK:STDOUT:     %self.loc16_8.1: C = param self
    150. 

  150. // CHECK:STDOUT:     %self.loc16_8.2: C = bind_name self, %self.loc16_8.1
    151. 

  151. // CHECK:STDOUT:     %C.ref.loc16_20: type = name_ref C, file.%C.decl [template = constants.%C]
    152. 

  152. // CHECK:STDOUT:     %x.loc16_17.1: C = param x
    153. 

  153. // CHECK:STDOUT:     %x.loc16_17.2: C = bind_name x, %x.loc16_17.1
    154. 

  154. // CHECK:STDOUT:     %C.ref.loc16_26: type = name_ref C, file.%C.decl [template = constants.%C]
    155. 

  155. // CHECK:STDOUT:     %return.var: ref C = var <return slot>
    156. 

  156. // CHECK:STDOUT:   }
    157. 

  157. // CHECK:STDOUT:   %.1: <witness> = interface_witness (%F) [template = constants.%.8]
    158. 

  158. // CHECK:STDOUT:
    159. 

  159. // CHECK:STDOUT: !members:
    160. 

  160. // CHECK:STDOUT:   .F = %F
    161. 

  161. // CHECK:STDOUT:   witness = %.1
    162. 

  162. // CHECK:STDOUT: }
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: impl @impl.2: D as UseSelf {
    165. 

  165. // CHECK:STDOUT:   %F: <function> = fn_decl @F.3 [template] {
    166. 

  166. // CHECK:STDOUT:     %Self.ref.loc20_14: type = name_ref Self, constants.%D [template = constants.%D]
    167. 

  167. // CHECK:STDOUT:     %self.loc20_8.1: D = param self
    168. 

  168. // CHECK:STDOUT:     %self.loc20_8.2: D = bind_name self, %self.loc20_8.1
    169. 

  169. // CHECK:STDOUT:     %Self.ref.loc20_23: type = name_ref Self, constants.%D [template = constants.%D]
    170. 

  170. // CHECK:STDOUT:     %x.loc20_20.1: D = param x
    171. 

  171. // CHECK:STDOUT:     %x.loc20_20.2: D = bind_name x, %x.loc20_20.1
    172. 

  172. // CHECK:STDOUT:     %Self.ref.loc20_32: type = name_ref Self, constants.%D [template = constants.%D]
    173. 

  173. // CHECK:STDOUT:     %return.var: ref D = var <return slot>
    174. 

  174. // CHECK:STDOUT:   }
    175. 

  175. // CHECK:STDOUT:   %.1: <witness> = interface_witness (%F) [template = constants.%.10]
    176. 

  176. // CHECK:STDOUT:
    177. 

  177. // CHECK:STDOUT: !members:
    178. 

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

  179. // CHECK:STDOUT:   witness = %.1
    180. 

  180. // CHECK:STDOUT: }
    181. 

  181. // CHECK:STDOUT:
    182. 

  182. // CHECK:STDOUT: impl @impl.3: C as SelfNested {
    183. 

  183. // CHECK:STDOUT:   %F: <function> = fn_decl @F.5 [template] {
    184. 

  184. // CHECK:STDOUT:     %C.ref.loc28_12: type = name_ref C, file.%C.decl [template = constants.%C]
    185. 

  185. // CHECK:STDOUT:     %.loc28_13: type = ptr_type C [template = constants.%.18]
    186. 

  186. // CHECK:STDOUT:     %C.ref.loc28_21: type = name_ref C, file.%C.decl [template = constants.%C]
    187. 

  187. // CHECK:STDOUT:     %.loc28_31: type = struct_type {.x: C, .y: i32} [template = constants.%.19]
    188. 

  188. // CHECK:STDOUT:     %.loc28_32.1: (type, type) = tuple_literal (%.loc28_13, %.loc28_31)
    189. 

  189. // CHECK:STDOUT:     %.loc28_32.2: type = converted %.loc28_32.1, constants.%.20 [template = constants.%.20]
    190. 

  190. // CHECK:STDOUT:     %x.loc28_8.1: (C*, {.x: C, .y: i32}) = param x
    191. 

  191. // CHECK:STDOUT:     %x.loc28_8.2: (C*, {.x: C, .y: i32}) = bind_name x, %x.loc28_8.1
    192. 

  192. // CHECK:STDOUT:   }
    193. 

  193. // CHECK:STDOUT:   %.1: <witness> = interface_witness (%F) [template = constants.%.21]
    194. 

  194. // CHECK:STDOUT:
    195. 

  195. // CHECK:STDOUT: !members:
    196. 

  196. // CHECK:STDOUT:   .F = %F
    197. 

  197. // CHECK:STDOUT:   witness = %.1
    198. 

  198. // CHECK:STDOUT: }
    199. 

  199. // CHECK:STDOUT:
    200. 

  200. // CHECK:STDOUT: impl @impl.4: D as SelfNested {
    201. 

  201. // CHECK:STDOUT:   %F: <function> = fn_decl @F.6 [template] {
    202. 

  202. // CHECK:STDOUT:     %Self.ref.loc32_12: type = name_ref Self, constants.%D [template = constants.%D]
    203. 

  203. // CHECK:STDOUT:     %.loc32_16: type = ptr_type D [template = constants.%.22]
    204. 

  204. // CHECK:STDOUT:     %Self.ref.loc32_24: type = name_ref Self, constants.%D [template = constants.%D]
    205. 

  205. // CHECK:STDOUT:     %.loc32_37: type = struct_type {.x: D, .y: i32} [template = constants.%.23]
    206. 

  206. // CHECK:STDOUT:     %.loc32_38.1: (type, type) = tuple_literal (%.loc32_16, %.loc32_37)
    207. 

  207. // CHECK:STDOUT:     %.loc32_38.2: type = converted %.loc32_38.1, constants.%.24 [template = constants.%.24]
    208. 

  208. // CHECK:STDOUT:     %x.loc32_8.1: (D*, {.x: D, .y: i32}) = param x
    209. 

  209. // CHECK:STDOUT:     %x.loc32_8.2: (D*, {.x: D, .y: i32}) = bind_name x, %x.loc32_8.1
    210. 

  210. // CHECK:STDOUT:   }
    211. 

  211. // CHECK:STDOUT:   %.1: <witness> = interface_witness (%F) [template = constants.%.25]
    212. 

  212. // CHECK:STDOUT:
    213. 

  213. // CHECK:STDOUT: !members:
    214. 

  214. // CHECK:STDOUT:   .F = %F
    215. 

  215. // CHECK:STDOUT:   witness = %.1
    216. 

  216. // CHECK:STDOUT: }
    217. 

  217. // CHECK:STDOUT:
    218. 

  218. // CHECK:STDOUT: class @C {
    219. 

  219. // CHECK:STDOUT: !members:
    220. 

  220. // CHECK:STDOUT:   .Self = constants.%C
    221. 

  221. // CHECK:STDOUT: }
    222. 

  222. // CHECK:STDOUT:
    223. 

  223. // CHECK:STDOUT: class @D {
    224. 

  224. // CHECK:STDOUT: !members:
    225. 

  225. // CHECK:STDOUT:   .Self = constants.%D
    226. 

  226. // CHECK:STDOUT: }
    227. 

  227. // CHECK:STDOUT:
    228. 

  228. // CHECK:STDOUT: fn @F.1[@UseSelf.%self.loc8_8.2: Self](@UseSelf.%x.loc8_20.2: Self) -> Self;
    229. 

  229. // CHECK:STDOUT:
    230. 

  230. // CHECK:STDOUT: fn @F.2[@impl.1.%self.loc16_8.2: C](@impl.1.%x.loc16_17.2: C) -> @impl.1.%return.var: C {
    231. 

  231. // CHECK:STDOUT: !entry:
    232. 

  232. // CHECK:STDOUT:   %.loc16_38.1: {} = struct_literal ()
    233. 

  233. // CHECK:STDOUT:   %.loc16_38.2: init C = class_init (), @impl.1.%return.var [template = constants.%.7]
    234. 

  234. // CHECK:STDOUT:   %.loc16_38.3: init C = converted %.loc16_38.1, %.loc16_38.2 [template = constants.%.7]
    235. 

  235. // CHECK:STDOUT:   return %.loc16_38.3
    236. 

  236. // CHECK:STDOUT: }
    237. 

  237. // CHECK:STDOUT:
    238. 

  238. // CHECK:STDOUT: fn @F.3[@impl.2.%self.loc20_8.2: D](@impl.2.%x.loc20_20.2: D) -> @impl.2.%return.var: D {
    239. 

  239. // CHECK:STDOUT: !entry:
    240. 

  240. // CHECK:STDOUT:   %.loc20_47.1: {} = struct_literal ()
    241. 

  241. // CHECK:STDOUT:   %.loc20_47.2: init D = class_init (), @impl.2.%return.var [template = constants.%.9]
    242. 

  242. // CHECK:STDOUT:   %.loc20_47.3: init D = converted %.loc20_47.1, %.loc20_47.2 [template = constants.%.9]
    243. 

  243. // CHECK:STDOUT:   return %.loc20_47.3
    244. 

  244. // CHECK:STDOUT: }
    245. 

  245. // CHECK:STDOUT:
    246. 

  246. // CHECK:STDOUT: fn @F.4(@SelfNested.%x.loc24_8.2: (Self*, {.x: Self, .y: i32}));
    247. 

  247. // CHECK:STDOUT:
    248. 

  248. // CHECK:STDOUT: fn @F.5(@impl.3.%x.loc28_8.2: (C*, {.x: C, .y: i32}));
    249. 

  249. // CHECK:STDOUT:
    250. 

  250. // CHECK:STDOUT: fn @F.6(@impl.4.%x.loc32_8.2: (D*, {.x: D, .y: i32}));
    251. 

  251. // CHECK:STDOUT:
    252.