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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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self.carbon

self.carbon 12 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/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/self.carbon
    10. 

  10. 

  11. // --- self.carbon
    12. 

  12. 

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

  14. 

  15. class Class {
    16. 

  16.   fn F[self: Self]() -> i32;
    17. 

  17.   fn G[addr self: Self*]() -> i32;
    18. 

  18. 

  19.   var n: i32;
    20. 

  20. }
    21. 

  21. 

  22. fn Class.F[self: Self]() -> i32 {
    23. 

  23.   return self.n;
    24. 

  24. }
    25. 

  25. 

  26. fn Class.G[addr self: Self*]() -> i32 {
    27. 

  27.   return (*self).n;
    28. 

  28. }
    29. 

  29. 

  30. // --- fail_return_self_value.carbon
    31. 

  31. 

  32. library "[[@TEST_NAME]]";
    33. 

  33. 

  34. class Class {
    35. 

  35.   // CHECK:STDERR: fail_return_self_value.carbon:[[@LINE+7]]:25: error: cannot implicitly convert from `Class` to `type` [ImplicitAsConversionFailure]
    36. 

  36.   // CHECK:STDERR:   fn F[self: Self]() -> self;
    37. 

  37.   // CHECK:STDERR:                         ^~~~
    38. 

  38.   // CHECK:STDERR: fail_return_self_value.carbon:[[@LINE+4]]:25: note: type `Class` does not implement interface `Core.ImplicitAs(type)` [MissingImplInMemberAccessNote]
    39. 

  39.   // CHECK:STDERR:   fn F[self: Self]() -> self;
    40. 

  40.   // CHECK:STDERR:                         ^~~~
    41. 

  41.   // CHECK:STDERR:
    42. 

  42.   fn F[self: Self]() -> self;
    43. 

  43. }
    44. 

  44. 

  45. // CHECK:STDOUT: --- self.carbon
    46. 

  46. // CHECK:STDOUT:
    47. 

  47. // CHECK:STDOUT: constants {
    48. 

  48. // CHECK:STDOUT:   %Class: type = class_type @Class [template]
    49. 

  49. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    50. 

  50. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    51. 

  51. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    52. 

  52. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    53. 

  53. // CHECK:STDOUT:   %ptr.e71: type = ptr_type %Class [template]
    54. 

  54. // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
    55. 

  55. // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
    56. 

  56. // CHECK:STDOUT:   %Class.elem: type = unbound_element_type %Class, %i32 [template]
    57. 

  57. // CHECK:STDOUT:   %struct_type.n: type = struct_type {.n: %i32} [template]
    58. 

  58. // CHECK:STDOUT:   %complete_type.54b: <witness> = complete_type_witness %struct_type.n [template]
    59. 

  59. // CHECK:STDOUT: }
    60. 

  60. // CHECK:STDOUT:
    61. 

  61. // CHECK:STDOUT: imports {
    62. 

  62. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    63. 

  63. // CHECK:STDOUT:     .Int = %Core.Int
    64. 

  64. // CHECK:STDOUT:     import Core//prelude
    65. 

  65. // CHECK:STDOUT:     import Core//prelude/...
    66. 

  66. // CHECK:STDOUT:   }
    67. 

  67. // CHECK:STDOUT: }
    68. 

  68. // CHECK:STDOUT:
    69. 

  69. // CHECK:STDOUT: file {
    70. 

  70. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    71. 

  71. // CHECK:STDOUT:     .Core = imports.%Core
    72. 

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

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT:   %Core.import = import Core
    75. 

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

  76. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    77. 

  77. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    78. 

  78. // CHECK:STDOUT:     %self.param_patt: %Class = value_param_pattern %self.patt, runtime_param0
    79. 

  79. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    80. 

  80. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
    81. 

  81. // CHECK:STDOUT:   } {
    82. 

  82. // CHECK:STDOUT:     %int_32.loc11: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    83. 

  83. // CHECK:STDOUT:     %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    84. 

  84. // CHECK:STDOUT:     %self.param.loc11: %Class = value_param runtime_param0
    85. 

  85. // CHECK:STDOUT:     %Self.ref.loc11: type = name_ref Self, constants.%Class [template = constants.%Class]
    86. 

  86. // CHECK:STDOUT:     %self.loc11: %Class = bind_name self, %self.param.loc11
    87. 

  87. // CHECK:STDOUT:     %return.param.loc11: ref %i32 = out_param runtime_param1
    88. 

  88. // CHECK:STDOUT:     %return.loc11: ref %i32 = return_slot %return.param.loc11
    89. 

  89. // CHECK:STDOUT:   }
    90. 

  90. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
    91. 

  91. // CHECK:STDOUT:     %self.patt: %ptr.e71 = binding_pattern self
    92. 

  92. // CHECK:STDOUT:     %self.param_patt: %ptr.e71 = value_param_pattern %self.patt, runtime_param0
    93. 

  93. // CHECK:STDOUT:     %.loc15_12: auto = addr_pattern %self.param_patt
    94. 

  94. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    95. 

  95. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
    96. 

  96. // CHECK:STDOUT:   } {
    97. 

  97. // CHECK:STDOUT:     %int_32.loc15: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    98. 

  98. // CHECK:STDOUT:     %i32.loc15: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    99. 

  99. // CHECK:STDOUT:     %self.param.loc15: %ptr.e71 = value_param runtime_param0
    100. 

  100. // CHECK:STDOUT:     %.loc15_27: type = splice_block %ptr.loc15 [template = constants.%ptr.e71] {
    101. 

  101. // CHECK:STDOUT:       %Self.ref.loc15: type = name_ref Self, constants.%Class [template = constants.%Class]
    102. 

  102. // CHECK:STDOUT:       %ptr.loc15: type = ptr_type %Class [template = constants.%ptr.e71]
    103. 

  103. // CHECK:STDOUT:     }
    104. 

  104. // CHECK:STDOUT:     %self.loc15: %ptr.e71 = bind_name self, %self.param.loc15
    105. 

  105. // CHECK:STDOUT:     %return.param.loc15: ref %i32 = out_param runtime_param1
    106. 

  106. // CHECK:STDOUT:     %return.loc15: ref %i32 = return_slot %return.param.loc15
    107. 

  107. // CHECK:STDOUT:   }
    108. 

  108. // CHECK:STDOUT: }
    109. 

  109. // CHECK:STDOUT:
    110. 

  110. // CHECK:STDOUT: class @Class {
    111. 

  111. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    112. 

  112. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    113. 

  113. // CHECK:STDOUT:     %self.param_patt: %Class = value_param_pattern %self.patt, runtime_param0
    114. 

  114. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    115. 

  115. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
    116. 

  116. // CHECK:STDOUT:   } {
    117. 

  117. // CHECK:STDOUT:     %int_32.loc5: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    118. 

  118. // CHECK:STDOUT:     %i32.loc5: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    119. 

  119. // CHECK:STDOUT:     %self.param.loc5: %Class = value_param runtime_param0
    120. 

  120. // CHECK:STDOUT:     %Self.ref.loc5: type = name_ref Self, constants.%Class [template = constants.%Class]
    121. 

  121. // CHECK:STDOUT:     %self.loc5: %Class = bind_name self, %self.param.loc5
    122. 

  122. // CHECK:STDOUT:     %return.param.loc5: ref %i32 = out_param runtime_param1
    123. 

  123. // CHECK:STDOUT:     %return.loc5: ref %i32 = return_slot %return.param.loc5
    124. 

  124. // CHECK:STDOUT:   }
    125. 

  125. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
    126. 

  126. // CHECK:STDOUT:     %self.patt: %ptr.e71 = binding_pattern self
    127. 

  127. // CHECK:STDOUT:     %self.param_patt: %ptr.e71 = value_param_pattern %self.patt, runtime_param0
    128. 

  128. // CHECK:STDOUT:     %.loc15_12: auto = addr_pattern %self.param_patt
    129. 

  129. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    130. 

  130. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
    131. 

  131. // CHECK:STDOUT:   } {
    132. 

  132. // CHECK:STDOUT:     %int_32.loc6: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    133. 

  133. // CHECK:STDOUT:     %i32.loc6: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    134. 

  134. // CHECK:STDOUT:     %self.param.loc6: %ptr.e71 = value_param runtime_param0
    135. 

  135. // CHECK:STDOUT:     %.loc6: type = splice_block %ptr.loc6 [template = constants.%ptr.e71] {
    136. 

  136. // CHECK:STDOUT:       %Self.ref.loc6: type = name_ref Self, constants.%Class [template = constants.%Class]
    137. 

  137. // CHECK:STDOUT:       %ptr.loc6: type = ptr_type %Class [template = constants.%ptr.e71]
    138. 

  138. // CHECK:STDOUT:     }
    139. 

  139. // CHECK:STDOUT:     %self.loc6: %ptr.e71 = bind_name self, %self.param.loc6
    140. 

  140. // CHECK:STDOUT:     %return.param.loc6: ref %i32 = out_param runtime_param1
    141. 

  141. // CHECK:STDOUT:     %return.loc6: ref %i32 = return_slot %return.param.loc6
    142. 

  142. // CHECK:STDOUT:   }
    143. 

  143. // CHECK:STDOUT:   %.loc8_8: %Class.elem = field_decl n, element0 [template]
    144. 

  144. // CHECK:STDOUT:   name_binding_decl {
    145. 

  145. // CHECK:STDOUT:     %.loc8_3: %Class.elem = var_pattern %.loc8_8
    146. 

  146. // CHECK:STDOUT:   }
    147. 

  147. // CHECK:STDOUT:   %.var: ref %Class.elem = var <none>
    148. 

  148. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.n [template = constants.%complete_type.54b]
    149. 

  149. // CHECK:STDOUT:   complete_type_witness = %complete_type
    150. 

  150. // CHECK:STDOUT:
    151. 

  151. // CHECK:STDOUT: !members:
    152. 

  152. // CHECK:STDOUT:   .Self = constants.%Class
    153. 

  153. // CHECK:STDOUT:   .F = %F.decl
    154. 

  154. // CHECK:STDOUT:   .G = %G.decl
    155. 

  155. // CHECK:STDOUT:   .n = %.loc8_8
    156. 

  156. // CHECK:STDOUT: }
    157. 

  157. // CHECK:STDOUT:
    158. 

  158. // CHECK:STDOUT: fn @F[%self.param_patt: %Class]() -> %i32 {
    159. 

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

  160. // CHECK:STDOUT:   %self.ref: %Class = name_ref self, %self.loc11
    161. 

  161. // CHECK:STDOUT:   %n.ref: %Class.elem = name_ref n, @Class.%.loc8_8 [template = @Class.%.loc8_8]
    162. 

  162. // CHECK:STDOUT:   %.loc12_14.1: ref %i32 = class_element_access %self.ref, element0
    163. 

  163. // CHECK:STDOUT:   %.loc12_14.2: %i32 = bind_value %.loc12_14.1
    164. 

  164. // CHECK:STDOUT:   return %.loc12_14.2
    165. 

  165. // CHECK:STDOUT: }
    166. 

  166. // CHECK:STDOUT:
    167. 

  167. // CHECK:STDOUT: fn @G[addr %self.param_patt: %ptr.e71]() -> %i32 {
    168. 

  168. // CHECK:STDOUT: !entry:
    169. 

  169. // CHECK:STDOUT:   %self.ref: %ptr.e71 = name_ref self, %self.loc15
    170. 

  170. // CHECK:STDOUT:   %.loc16_11: ref %Class = deref %self.ref
    171. 

  171. // CHECK:STDOUT:   %n.ref: %Class.elem = name_ref n, @Class.%.loc8_8 [template = @Class.%.loc8_8]
    172. 

  172. // CHECK:STDOUT:   %.loc16_17.1: ref %i32 = class_element_access %.loc16_11, element0
    173. 

  173. // CHECK:STDOUT:   %.loc16_17.2: %i32 = bind_value %.loc16_17.1
    174. 

  174. // CHECK:STDOUT:   return %.loc16_17.2
    175. 

  175. // CHECK:STDOUT: }
    176. 

  176. // CHECK:STDOUT:
    177. 

  177. // CHECK:STDOUT: --- fail_return_self_value.carbon
    178. 

  178. // CHECK:STDOUT:
    179. 

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

  180. // CHECK:STDOUT:   %Class: type = class_type @Class [template]
    181. 

  181. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    182. 

  182. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    183. 

  183. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [template]
    184. 

  184. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [template]
    185. 

  185. // CHECK:STDOUT: }
    186. 

  186. // CHECK:STDOUT:
    187. 

  187. // CHECK:STDOUT: imports {
    188. 

  188. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    189. 

  189. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    190. 

  190. // CHECK:STDOUT:     import Core//prelude
    191. 

  191. // CHECK:STDOUT:     import Core//prelude/...
    192. 

  192. // CHECK:STDOUT:   }
    193. 

  193. // CHECK:STDOUT: }
    194. 

  194. // CHECK:STDOUT:
    195. 

  195. // CHECK:STDOUT: file {
    196. 

  196. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    197. 

  197. // CHECK:STDOUT:     .Core = imports.%Core
    198. 

  198. // CHECK:STDOUT:     .Class = %Class.decl
    199. 

  199. // CHECK:STDOUT:   }
    200. 

  200. // CHECK:STDOUT:   %Core.import = import Core
    201. 

  201. // CHECK:STDOUT:   %Class.decl: type = class_decl @Class [template = constants.%Class] {} {}
    202. 

  202. // CHECK:STDOUT: }
    203. 

  203. // CHECK:STDOUT:
    204. 

  204. // CHECK:STDOUT: class @Class {
    205. 

  205. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    206. 

  206. // CHECK:STDOUT:     %self.patt: %Class = binding_pattern self
    207. 

  207. // CHECK:STDOUT:     %self.param_patt: %Class = value_param_pattern %self.patt, runtime_param0
    208. 

  208. // CHECK:STDOUT:     %return.patt: <error> = return_slot_pattern
    209. 

  209. // CHECK:STDOUT:     %return.param_patt: <error> = out_param_pattern %return.patt, runtime_param1
    210. 

  210. // CHECK:STDOUT:   } {
    211. 

  211. // CHECK:STDOUT:     %self.ref: %Class = name_ref self, %self
    212. 

  212. // CHECK:STDOUT:     %.loc12: type = converted %self.ref, <error> [template = <error>]
    213. 

  213. // CHECK:STDOUT:     %self.param: %Class = value_param runtime_param0
    214. 

  214. // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%Class [template = constants.%Class]
    215. 

  215. // CHECK:STDOUT:     %self: %Class = bind_name self, %self.param
    216. 

  216. // CHECK:STDOUT:     %return.param: ref <error> = out_param runtime_param1
    217. 

  217. // CHECK:STDOUT:     %return: ref <error> = return_slot %return.param
    218. 

  218. // CHECK:STDOUT:   }
    219. 

  219. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type]
    220. 

  220. // CHECK:STDOUT:   complete_type_witness = %complete_type
    221. 

  221. // CHECK:STDOUT:
    222. 

  222. // CHECK:STDOUT: !members:
    223. 

  223. // CHECK:STDOUT:   .Self = constants.%Class
    224. 

  224. // CHECK:STDOUT:   .F = %F.decl
    225. 

  225. // CHECK:STDOUT: }
    226. 

  226. // CHECK:STDOUT:
    227. 

  227. // CHECK:STDOUT: fn @F[%self.param_patt: %Class]() -> <error>;
    228. 

  228. // CHECK:STDOUT:
    229.