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carbon-lang
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toolchain
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check
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testdata
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class
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fail_self.carbon

fail_self.carbon 14 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/class/fail_self.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/class/fail_self.carbon
    10. 

  10. 

  11. class Class {
    12. 

  12.   // CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:8: error: `self` can only be declared in an implicit parameter list
    13. 

  13.   // CHECK:STDERR:   fn F(self: Self);
    14. 

  14.   // CHECK:STDERR:        ^~~~~~~~~~
    15. 

  15.   // CHECK:STDERR:
    16. 

  16.   fn F(self: Self);
    17. 

  17. 

  18.   fn G() -> Self;
    19. 

  19. }
    20. 

  20. 

  21. // CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:12: error: `self` can only be declared in an implicit parameter list
    22. 

  22. // CHECK:STDERR: fn Class.F(self: Self) {
    23. 

  23. // CHECK:STDERR:            ^~~~~~~~~~
    24. 

  24. // CHECK:STDERR:
    25. 

  25. fn Class.F(self: Self) {
    26. 

  26. }
    27. 

  27. 

  28. fn Class.G() -> Self {
    29. 

  29.   // CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:7: error: `self` can only be declared in an implicit parameter list
    30. 

  30.   // CHECK:STDERR:   var self: Self;
    31. 

  31.   // CHECK:STDERR:       ^~~~~~~~~~
    32. 

  32.   // CHECK:STDERR:
    33. 

  33.   var self: Self;
    34. 

  34.   // CHECK:STDERR: fail_self.carbon:[[@LINE+4]]:10: error: cannot copy value of type `Class`
    35. 

  35.   // CHECK:STDERR:   return self;
    36. 

  36.   // CHECK:STDERR:          ^~~~
    37. 

  37.   // CHECK:STDERR:
    38. 

  38.   return self;
    39. 

  39. }
    40. 

  40. 

  41. class WrongSelf {
    42. 

  42.   fn F[self: Class]();
    43. 

  43. }
    44. 

  44. 

  45. fn CallWrongSelf(ws: WrongSelf) {
    46. 

  46.   // CHECK:STDERR: fail_self.carbon:[[@LINE+9]]:3: error: cannot implicitly convert from `WrongSelf` to `Class`
    47. 

  47.   // CHECK:STDERR:   ws.F();
    48. 

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

  49.   // CHECK:STDERR: fail_self.carbon:[[@LINE+6]]:3: note: type `WrongSelf` does not implement interface `ImplicitAs`
    50. 

  50.   // CHECK:STDERR:   ws.F();
    51. 

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

  52.   // CHECK:STDERR: fail_self.carbon:[[@LINE-10]]:8: note: initializing `self` parameter of method declared here
    53. 

  53.   // CHECK:STDERR:   fn F[self: Class]();
    54. 

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

  55.   ws.F();
    56. 

  56. }
    57. 

  57. 

  58. // CHECK:STDOUT: --- fail_self.carbon
    59. 

  59. // CHECK:STDOUT:
    60. 

  60. // CHECK:STDOUT: constants {
    61. 

  61. // CHECK:STDOUT:   %Class: type = class_type @Class [template]
    62. 

  62. // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
    63. 

  63. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    64. 

  64. // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
    65. 

  65. // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
    66. 

  66. // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
    67. 

  67. // CHECK:STDOUT:   %.2: type = struct_type {} [template]
    68. 

  68. // CHECK:STDOUT:   %.3: <witness> = complete_type_witness %.2 [template]
    69. 

  69. // CHECK:STDOUT:   %.4: type = ptr_type %.2 [template]
    70. 

  70. // CHECK:STDOUT:   %WrongSelf: type = class_type @WrongSelf [template]
    71. 

  71. // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
    72. 

  72. // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
    73. 

  73. // CHECK:STDOUT:   %CallWrongSelf.type: type = fn_type @CallWrongSelf [template]
    74. 

  74. // CHECK:STDOUT:   %CallWrongSelf: %CallWrongSelf.type = struct_value () [template]
    75. 

  75. // CHECK:STDOUT:   %ImplicitAs.type: type = generic_interface_type @ImplicitAs [template]
    76. 

  76. // CHECK:STDOUT:   %ImplicitAs: %ImplicitAs.type = struct_value () [template]
    77. 

  77. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest 0 [symbolic]
    78. 

  78. // CHECK:STDOUT:   %.5: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
    79. 

  79. // CHECK:STDOUT:   %Self.1: @ImplicitAs.%.1 (%.5) = bind_symbolic_name Self 1 [symbolic]
    80. 

  80. // CHECK:STDOUT:   %Self.2: %.5 = bind_symbolic_name Self 1 [symbolic]
    81. 

  81. // CHECK:STDOUT:   %Convert.type.1: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic]
    82. 

  82. // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
    83. 

  83. // CHECK:STDOUT:   %.6: type = assoc_entity_type %.5, %Convert.type.1 [symbolic]
    84. 

  84. // CHECK:STDOUT:   %.7: %.6 = assoc_entity element0, imports.%import_ref.5 [symbolic]
    85. 

  85. // CHECK:STDOUT:   %.8: type = interface_type @ImplicitAs, @ImplicitAs(%Class) [template]
    86. 

  86. // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert, @ImplicitAs(%Class) [template]
    87. 

  87. // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [template]
    88. 

  88. // CHECK:STDOUT:   %.9: type = assoc_entity_type %.8, %Convert.type.2 [template]
    89. 

  89. // CHECK:STDOUT:   %.10: %.9 = assoc_entity element0, imports.%import_ref.5 [template]
    90. 

  90. // CHECK:STDOUT:   %.11: %.6 = assoc_entity element0, imports.%import_ref.6 [symbolic]
    91. 

  91. // CHECK:STDOUT: }
    92. 

  92. // CHECK:STDOUT:
    93. 

  93. // CHECK:STDOUT: imports {
    94. 

  94. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    95. 

  95. // CHECK:STDOUT:     .ImplicitAs = %import_ref.1
    96. 

  96. // CHECK:STDOUT:     import Core//prelude
    97. 

  97. // CHECK:STDOUT:     import Core//prelude/operators
    98. 

  98. // CHECK:STDOUT:     import Core//prelude/types
    99. 

  99. // CHECK:STDOUT:     import Core//prelude/operators/arithmetic
    100. 

  100. // CHECK:STDOUT:     import Core//prelude/operators/as
    101. 

  101. // CHECK:STDOUT:     import Core//prelude/operators/bitwise
    102. 

  102. // CHECK:STDOUT:     import Core//prelude/operators/comparison
    103. 

  103. // CHECK:STDOUT:     import Core//prelude/types/bool
    104. 

  104. // CHECK:STDOUT:   }
    105. 

  105. // CHECK:STDOUT:   %import_ref.1: %ImplicitAs.type = import_ref Core//prelude/operators/as, inst+40, loaded [template = constants.%ImplicitAs]
    106. 

  106. // CHECK:STDOUT:   %import_ref.2 = import_ref Core//prelude/operators/as, inst+45, unloaded
    107. 

  107. // CHECK:STDOUT:   %import_ref.3: @ImplicitAs.%.2 (%.6) = import_ref Core//prelude/operators/as, inst+63, loaded [symbolic = @ImplicitAs.%.3 (constants.%.11)]
    108. 

  108. // CHECK:STDOUT:   %import_ref.4 = import_ref Core//prelude/operators/as, inst+56, unloaded
    109. 

  109. // CHECK:STDOUT:   %import_ref.5 = import_ref Core//prelude/operators/as, inst+56, unloaded
    110. 

  110. // CHECK:STDOUT:   %import_ref.6 = import_ref Core//prelude/operators/as, inst+56, unloaded
    111. 

  111. // CHECK:STDOUT: }
    112. 

  112. // CHECK:STDOUT:
    113. 

  113. // CHECK:STDOUT: file {
    114. 

  114. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    115. 

  115. // CHECK:STDOUT:     .Core = imports.%Core
    116. 

  116. // CHECK:STDOUT:     .Class = %Class.decl
    117. 

  117. // CHECK:STDOUT:     .WrongSelf = %WrongSelf.decl
    118. 

  118. // CHECK:STDOUT:     .CallWrongSelf = %CallWrongSelf.decl
    119. 

  119. // CHECK:STDOUT:   }
    120. 

  120. // CHECK:STDOUT:   %Core.import = import Core
    121. 

  121. // CHECK:STDOUT:   %Class.decl: type = class_decl @Class [template = constants.%Class] {} {}
    122. 

  122. // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {
    123. 

  123. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    124. 

  124. // CHECK:STDOUT:   } {
    125. 

  125. // CHECK:STDOUT:     %Self.ref.loc25: type = name_ref Self, constants.%Class [template = constants.%Class]
    126. 

  126. // CHECK:STDOUT:     %self.param.loc25: %Class = param self, runtime_param0
    127. 

  127. // CHECK:STDOUT:     %self.loc25: %Class = bind_name self, %self.param.loc25
    128. 

  128. // CHECK:STDOUT:   }
    129. 

  129. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {} {
    130. 

  130. // CHECK:STDOUT:     %Self.ref.loc28: type = name_ref Self, constants.%Class [template = constants.%Class]
    131. 

  131. // CHECK:STDOUT:     %return: ref %Class = var <return slot>
    132. 

  132. // CHECK:STDOUT:   }
    133. 

  133. // CHECK:STDOUT:   %WrongSelf.decl: type = class_decl @WrongSelf [template = constants.%WrongSelf] {} {}
    134. 

  134. // CHECK:STDOUT:   %CallWrongSelf.decl: %CallWrongSelf.type = fn_decl @CallWrongSelf [template = constants.%CallWrongSelf] {
    135. 

  135. // CHECK:STDOUT:     %ws.patt: %WrongSelf = binding_pattern ws
    136. 

  136. // CHECK:STDOUT:   } {
    137. 

  137. // CHECK:STDOUT:     %WrongSelf.ref: type = name_ref WrongSelf, file.%WrongSelf.decl [template = constants.%WrongSelf]
    138. 

  138. // CHECK:STDOUT:     %ws.param: %WrongSelf = param ws, runtime_param0
    139. 

  139. // CHECK:STDOUT:     %ws: %WrongSelf = bind_name ws, %ws.param
    140. 

  140. // CHECK:STDOUT:   }
    141. 

  141. // CHECK:STDOUT: }
    142. 

  142. // CHECK:STDOUT:
    143. 

  143. // CHECK:STDOUT: generic interface @ImplicitAs(constants.%Dest: type) {
    144. 

  144. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest 0 [symbolic = %Dest (constants.%Dest)]
    145. 

  145. // CHECK:STDOUT:
    146. 

  146. // CHECK:STDOUT: !definition:
    147. 

  147. // CHECK:STDOUT:   %.1: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %.1 (constants.%.5)]
    148. 

  148. // CHECK:STDOUT:   %Self: %.5 = bind_symbolic_name Self 1 [symbolic = %Self (constants.%Self.2)]
    149. 

  149. // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
    150. 

  150. // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
    151. 

  151. // CHECK:STDOUT:   %.2: type = assoc_entity_type @ImplicitAs.%.1 (%.5), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.2 (constants.%.6)]
    152. 

  152. // CHECK:STDOUT:   %.3: @ImplicitAs.%.2 (%.6) = assoc_entity element0, imports.%import_ref.5 [symbolic = %.3 (constants.%.7)]
    153. 

  153. // CHECK:STDOUT:
    154. 

  154. // CHECK:STDOUT:   interface {
    155. 

  155. // CHECK:STDOUT:   !members:
    156. 

  156. // CHECK:STDOUT:     .Self = imports.%import_ref.2
    157. 

  157. // CHECK:STDOUT:     .Convert = imports.%import_ref.3
    158. 

  158. // CHECK:STDOUT:     witness = (imports.%import_ref.4)
    159. 

  159. // CHECK:STDOUT:   }
    160. 

  160. // CHECK:STDOUT: }
    161. 

  161. // CHECK:STDOUT:
    162. 

  162. // CHECK:STDOUT: class @Class {
    163. 

  163. // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {
    164. 

  164. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    165. 

  165. // CHECK:STDOUT:   } {
    166. 

  166. // CHECK:STDOUT:     %Self.ref.loc16: type = name_ref Self, constants.%Class [template = constants.%Class]
    167. 

  167. // CHECK:STDOUT:     %self.param.loc16: %Class = param self, runtime_param0
    168. 

  168. // CHECK:STDOUT:     %self.loc16: %Class = bind_name self, %self.param.loc16
    169. 

  169. // CHECK:STDOUT:   }
    170. 

  170. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {} {
    171. 

  171. // CHECK:STDOUT:     %Self.ref.loc18: type = name_ref Self, constants.%Class [template = constants.%Class]
    172. 

  172. // CHECK:STDOUT:     %return.var.loc18: ref %Class = var <return slot>
    173. 

  173. // CHECK:STDOUT:   }
    174. 

  174. // CHECK:STDOUT:   %.loc19: <witness> = complete_type_witness %.2 [template = constants.%.3]
    175. 

  175. // CHECK:STDOUT:
    176. 

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

  177. // CHECK:STDOUT:   .Self = constants.%Class
    178. 

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

  179. // CHECK:STDOUT:   .G = %G.decl
    180. 

  180. // CHECK:STDOUT: }
    181. 

  181. // CHECK:STDOUT:
    182. 

  182. // CHECK:STDOUT: class @WrongSelf {
    183. 

  183. // CHECK:STDOUT:   %F.decl: %F.type.2 = fn_decl @F.2 [template = constants.%F.2] {
    184. 

  184. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    185. 

  185. // CHECK:STDOUT:   } {
    186. 

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

  187. // CHECK:STDOUT:     %self.param: %Class = param self, runtime_param0
    188. 

  188. // CHECK:STDOUT:     %self: %Class = bind_name self, %self.param
    189. 

  189. // CHECK:STDOUT:   }
    190. 

  190. // CHECK:STDOUT:   %.loc43: <witness> = complete_type_witness %.2 [template = constants.%.3]
    191. 

  191. // CHECK:STDOUT:
    192. 

  192. // CHECK:STDOUT: !members:
    193. 

  193. // CHECK:STDOUT:   .Self = constants.%WrongSelf
    194. 

  194. // CHECK:STDOUT:   .F = %F.decl
    195. 

  195. // CHECK:STDOUT: }
    196. 

  196. // CHECK:STDOUT:
    197. 

  197. // CHECK:STDOUT: fn @F.1(%self.loc25: %Class) {
    198. 

  198. // CHECK:STDOUT: !entry:
    199. 

  199. // CHECK:STDOUT:   return
    200. 

  200. // CHECK:STDOUT: }
    201. 

  201. // CHECK:STDOUT:
    202. 

  202. // CHECK:STDOUT: fn @G() -> %return: %Class {
    203. 

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

  204. // CHECK:STDOUT:   %Self.ref.loc33: type = name_ref Self, constants.%Class [template = constants.%Class]
    205. 

  205. // CHECK:STDOUT:   %self.var: ref %Class = var self
    206. 

  206. // CHECK:STDOUT:   %self: ref %Class = bind_name self, %self.var
    207. 

  207. // CHECK:STDOUT:   %self.ref: ref %Class = name_ref self, %self
    208. 

  208. // CHECK:STDOUT:   %.loc38: %Class = bind_value %self.ref
    209. 

  209. // CHECK:STDOUT:   return <error> to %return
    210. 

  210. // CHECK:STDOUT: }
    211. 

  211. // CHECK:STDOUT:
    212. 

  212. // CHECK:STDOUT: fn @F.2[%self: %Class]();
    213. 

  213. // CHECK:STDOUT:
    214. 

  214. // CHECK:STDOUT: fn @CallWrongSelf(%ws: %WrongSelf) {
    215. 

  215. // CHECK:STDOUT: !entry:
    216. 

  216. // CHECK:STDOUT:   %ws.ref: %WrongSelf = name_ref ws, %ws
    217. 

  217. // CHECK:STDOUT:   %F.ref: %F.type.2 = name_ref F, @WrongSelf.%F.decl [template = constants.%F.2]
    218. 

  218. // CHECK:STDOUT:   %.loc55_5: <bound method> = bound_method %ws.ref, %F.ref
    219. 

  219. // CHECK:STDOUT:   %.loc55_7.1: type = interface_type @ImplicitAs, @ImplicitAs(constants.%Class) [template = constants.%.8]
    220. 

  220. // CHECK:STDOUT:   %.loc55_7.2: %.9 = specific_constant imports.%import_ref.3, @ImplicitAs(constants.%Class) [template = constants.%.10]
    221. 

  221. // CHECK:STDOUT:   %Convert.ref: %.9 = name_ref Convert, %.loc55_7.2 [template = constants.%.10]
    222. 

  222. // CHECK:STDOUT:   %.loc55_7.3: %Class = converted %ws.ref, <error> [template = <error>]
    223. 

  223. // CHECK:STDOUT:   %F.call: init %.1 = call %.loc55_5(<invalid>) [template = <error>]
    224. 

  224. // CHECK:STDOUT:   return
    225. 

  225. // CHECK:STDOUT: }
    226. 

  226. // CHECK:STDOUT:
    227. 

  227. // CHECK:STDOUT: generic fn @Convert(constants.%Dest: type, constants.%Self.1: @ImplicitAs.%.1 (%.5)) {
    228. 

  228. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest 0 [symbolic = %Dest (constants.%Dest)]
    229. 

  229. // CHECK:STDOUT:   %.1: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %.1 (constants.%.5)]
    230. 

  230. // CHECK:STDOUT:   %Self: %.5 = bind_symbolic_name Self 1 [symbolic = %Self (constants.%Self.2)]
    231. 

  231. // CHECK:STDOUT:
    232. 

  232. // CHECK:STDOUT:   fn[%self: @Convert.%Self (%Self.2)]() -> @Convert.%Dest (%Dest);
    233. 

  233. // CHECK:STDOUT: }
    234. 

  234. // CHECK:STDOUT:
    235. 

  235. // CHECK:STDOUT: specific @ImplicitAs(constants.%Dest) {
    236. 

  236. // CHECK:STDOUT:   %Dest => constants.%Dest
    237. 

  237. // CHECK:STDOUT: }
    238. 

  238. // CHECK:STDOUT:
    239. 

  239. // CHECK:STDOUT: specific @ImplicitAs(@ImplicitAs.%Dest) {
    240. 

  240. // CHECK:STDOUT:   %Dest => constants.%Dest
    241. 

  241. // CHECK:STDOUT: }
    242. 

  242. // CHECK:STDOUT:
    243. 

  243. // CHECK:STDOUT: specific @ImplicitAs(@Convert.%Dest) {
    244. 

  244. // CHECK:STDOUT:   %Dest => constants.%Dest
    245. 

  245. // CHECK:STDOUT: }
    246. 

  246. // CHECK:STDOUT:
    247. 

  247. // CHECK:STDOUT: specific @Convert(constants.%Dest, constants.%Self.1) {
    248. 

  248. // CHECK:STDOUT:   %Dest => constants.%Dest
    249. 

  249. // CHECK:STDOUT:   %.1 => constants.%.5
    250. 

  250. // CHECK:STDOUT:   %Self => constants.%Self.1
    251. 

  251. // CHECK:STDOUT: }
    252. 

  252. // CHECK:STDOUT:
    253. 

  253. // CHECK:STDOUT: specific @ImplicitAs(constants.%Class) {
    254. 

  254. // CHECK:STDOUT:   %Dest => constants.%Class
    255. 

  255. // CHECK:STDOUT:
    256. 

  256. // CHECK:STDOUT: !definition:
    257. 

  257. // CHECK:STDOUT:   %.1 => constants.%.8
    258. 

  258. // CHECK:STDOUT:   %Self => constants.%Self.2
    259. 

  259. // CHECK:STDOUT:   %Convert.type => constants.%Convert.type.2
    260. 

  260. // CHECK:STDOUT:   %Convert => constants.%Convert.2
    261. 

  261. // CHECK:STDOUT:   %.2 => constants.%.9
    262. 

  262. // CHECK:STDOUT:   %.3 => constants.%.10
    263. 

  263. // CHECK:STDOUT: }
    264. 

  264. // CHECK:STDOUT:
    265.