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overloaded.carbon

overloaded.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. // TIP: To test this file alone, run:
    7. 

  7. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/as/overloaded.carbon
    8. 

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

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

  10. 

  11. class X {
    12. 

  12.   var n: i32;
    13. 

  13. }
    14. 

  14. 

  15. impl i32 as Core.As(X) {
    16. 

  16.   fn Convert[self: i32]() -> X { return {.n = self}; }
    17. 

  17. }
    18. 

  18. 

  19. impl X as Core.As(i32) {
    20. 

  20.   fn Convert[self: X]() -> i32 { return self.n; }
    21. 

  21. }
    22. 

  22. 

  23. let n: i32 = ((4 as i32) as X) as i32;
    24. 

  24. 

  25. // CHECK:STDOUT: --- overloaded.carbon
    26. 

  26. // CHECK:STDOUT:
    27. 

  27. // CHECK:STDOUT: constants {
    28. 

  28. // CHECK:STDOUT:   %X: type = class_type @X [template]
    29. 

  29. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    30. 

  30. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    31. 

  31. // CHECK:STDOUT:   %X.elem: type = unbound_element_type %X, %i32 [template]
    32. 

  32. // CHECK:STDOUT:   %struct_type.n: type = struct_type {.n: %i32} [template]
    33. 

  33. // CHECK:STDOUT:   %complete_type.54b: <witness> = complete_type_witness %struct_type.n [template]
    34. 

  34. // CHECK:STDOUT:   %As.type.90f: type = generic_interface_type @As [template]
    35. 

  35. // CHECK:STDOUT:   %As.generic: %As.type.90f = struct_value () [template]
    36. 

  36. // CHECK:STDOUT:   %As.type.602: type = facet_type <@As, @As(%X)> [template]
    37. 

  37. // CHECK:STDOUT:   %Convert.type.35b: type = fn_type @Convert.1, @As(%X) [template]
    38. 

  38. // CHECK:STDOUT:   %impl_witness.491: <witness> = impl_witness (@impl.1.%Convert.decl) [template]
    39. 

  39. // CHECK:STDOUT:   %Convert.type.0e3: type = fn_type @Convert.2 [template]
    40. 

  40. // CHECK:STDOUT:   %Convert.311: %Convert.type.0e3 = struct_value () [template]
    41. 

  41. // CHECK:STDOUT:   %As.facet.e45: %As.type.602 = facet_value %i32, %impl_witness.491 [template]
    42. 

  42. // CHECK:STDOUT:   %As.type.fd4: type = facet_type <@As, @As(%i32)> [template]
    43. 

  43. // CHECK:STDOUT:   %Convert.type.99b: type = fn_type @Convert.1, @As(%i32) [template]
    44. 

  44. // CHECK:STDOUT:   %impl_witness.662: <witness> = impl_witness (@impl.2.%Convert.decl) [template]
    45. 

  45. // CHECK:STDOUT:   %Convert.type.c23: type = fn_type @Convert.3 [template]
    46. 

  46. // CHECK:STDOUT:   %Convert.8bb: %Convert.type.c23 = struct_value () [template]
    47. 

  47. // CHECK:STDOUT:   %As.facet.831: %As.type.fd4 = facet_value %X, %impl_witness.662 [template]
    48. 

  48. // CHECK:STDOUT:   %int_4.0c1: Core.IntLiteral = int_value 4 [template]
    49. 

  49. // CHECK:STDOUT:   %impl_witness.882: <witness> = impl_witness (imports.%Core.import_ref.78a), @impl.5(%int_32) [template]
    50. 

  50. // CHECK:STDOUT:   %Convert.type.4fd: type = fn_type @Convert.7, @impl.5(%int_32) [template]
    51. 

  51. // CHECK:STDOUT:   %Convert.197: %Convert.type.4fd = struct_value () [template]
    52. 

  52. // CHECK:STDOUT:   %As.facet.5e2: %As.type.fd4 = facet_value Core.IntLiteral, %impl_witness.882 [template]
    53. 

  53. // CHECK:STDOUT:   %.214: type = fn_type_with_self_type %Convert.type.99b, %As.facet.5e2 [template]
    54. 

  54. // CHECK:STDOUT:   %Convert.bound.e80: <bound method> = bound_method %int_4.0c1, %Convert.197 [template]
    55. 

  55. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.bound.e80, @Convert.7(%int_32) [template]
    56. 

  56. // CHECK:STDOUT:   %int_4.940: %i32 = int_value 4 [template]
    57. 

  57. // CHECK:STDOUT:   %.b22: type = fn_type_with_self_type %Convert.type.35b, %As.facet.e45 [template]
    58. 

  58. // CHECK:STDOUT:   %Convert.bound.483: <bound method> = bound_method %int_4.940, %Convert.311 [template]
    59. 

  59. // CHECK:STDOUT:   %.599: type = fn_type_with_self_type %Convert.type.99b, %As.facet.831 [template]
    60. 

  60. // CHECK:STDOUT: }
    61. 

  61. // CHECK:STDOUT:
    62. 

  62. // CHECK:STDOUT: imports {
    63. 

  63. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    64. 

  64. // CHECK:STDOUT:     .Int = %Core.Int
    65. 

  65. // CHECK:STDOUT:     .As = %Core.As
    66. 

  66. // CHECK:STDOUT:     import Core//prelude
    67. 

  67. // CHECK:STDOUT:     import Core//prelude/...
    68. 

  68. // CHECK:STDOUT:   }
    69. 

  69. // CHECK:STDOUT:   %Core.As: %As.type.90f = import_ref Core//prelude/operators/as, As, loaded [template = constants.%As.generic]
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

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

  73. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    74. 

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

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

  76. // CHECK:STDOUT:     .n = %n
    77. 

  77. // CHECK:STDOUT:   }
    78. 

  78. // CHECK:STDOUT:   %Core.import = import Core
    79. 

  79. // CHECK:STDOUT:   %X.decl: type = class_decl @X [template = constants.%X] {} {}
    80. 

  80. // CHECK:STDOUT:   impl_decl @impl.1 [template] {} {
    81. 

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

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

  83. // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [template = imports.%Core]
    84. 

  84. // CHECK:STDOUT:     %As.ref: %As.type.90f = name_ref As, imports.%Core.As [template = constants.%As.generic]
    85. 

  85. // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
    86. 

  86. // CHECK:STDOUT:     %As.type: type = facet_type <@As, @As(constants.%X)> [template = constants.%As.type.602]
    87. 

  87. // CHECK:STDOUT:   }
    88. 

  88. // CHECK:STDOUT:   %impl_witness.loc15: <witness> = impl_witness (@impl.1.%Convert.decl) [template = constants.%impl_witness.491]
    89. 

  89. // CHECK:STDOUT:   impl_decl @impl.2 [template] {} {
    90. 

  90. // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
    91. 

  91. // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [template = imports.%Core]
    92. 

  92. // CHECK:STDOUT:     %As.ref: %As.type.90f = name_ref As, imports.%Core.As [template = constants.%As.generic]
    93. 

  93. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    94. 

  94. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    95. 

  95. // CHECK:STDOUT:     %As.type: type = facet_type <@As, @As(constants.%i32)> [template = constants.%As.type.fd4]
    96. 

  96. // CHECK:STDOUT:   }
    97. 

  97. // CHECK:STDOUT:   %impl_witness.loc19: <witness> = impl_witness (@impl.2.%Convert.decl) [template = constants.%impl_witness.662]
    98. 

  98. // CHECK:STDOUT:   name_binding_decl {
    99. 

  99. // CHECK:STDOUT:     %n.patt: %i32 = binding_pattern n
    100. 

  100. // CHECK:STDOUT:   }
    101. 

  101. // CHECK:STDOUT:   %.loc23: type = splice_block %i32 [template = constants.%i32] {
    102. 

  102. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    103. 

  103. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    104. 

  104. // CHECK:STDOUT:   }
    105. 

  105. // CHECK:STDOUT:   %n: %i32 = bind_name n, @__global_init.%.loc23_32.2
    106. 

  106. // CHECK:STDOUT: }
    107. 

  107. // CHECK:STDOUT:
    108. 

  108. // CHECK:STDOUT: impl @impl.1: %i32 as %As.type {
    109. 

  109. // CHECK:STDOUT:   %Convert.decl: %Convert.type.0e3 = fn_decl @Convert.2 [template = constants.%Convert.311] {
    110. 

  110. // CHECK:STDOUT:     %self.patt: %i32 = binding_pattern self
    111. 

  111. // CHECK:STDOUT:     %self.param_patt: %i32 = value_param_pattern %self.patt, runtime_param0
    112. 

  112. // CHECK:STDOUT:     %return.patt: %X = return_slot_pattern
    113. 

  113. // CHECK:STDOUT:     %return.param_patt: %X = out_param_pattern %return.patt, runtime_param1
    114. 

  114. // CHECK:STDOUT:   } {
    115. 

  115. // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
    116. 

  116. // CHECK:STDOUT:     %self.param: %i32 = value_param runtime_param0
    117. 

  117. // CHECK:STDOUT:     %.loc16_20: type = splice_block %i32 [template = constants.%i32] {
    118. 

  118. // CHECK:STDOUT:       %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    119. 

  119. // CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    120. 

  120. // CHECK:STDOUT:     }
    121. 

  121. // CHECK:STDOUT:     %self: %i32 = bind_name self, %self.param
    122. 

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

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

  124. // CHECK:STDOUT:   }
    125. 

  125. // CHECK:STDOUT:
    126. 

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

  127. // CHECK:STDOUT:   .Convert = %Convert.decl
    128. 

  128. // CHECK:STDOUT:   witness = file.%impl_witness.loc15
    129. 

  129. // CHECK:STDOUT: }
    130. 

  130. // CHECK:STDOUT:
    131. 

  131. // CHECK:STDOUT: impl @impl.2: %X.ref as %As.type {
    132. 

  132. // CHECK:STDOUT:   %Convert.decl: %Convert.type.c23 = fn_decl @Convert.3 [template = constants.%Convert.8bb] {
    133. 

  133. // CHECK:STDOUT:     %self.patt: %X = binding_pattern self
    134. 

  134. // CHECK:STDOUT:     %self.param_patt: %X = value_param_pattern %self.patt, runtime_param0
    135. 

  135. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    136. 

  136. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param1
    137. 

  137. // CHECK:STDOUT:   } {
    138. 

  138. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    139. 

  139. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    140. 

  140. // CHECK:STDOUT:     %self.param: %X = value_param runtime_param0
    141. 

  141. // CHECK:STDOUT:     %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
    142. 

  142. // CHECK:STDOUT:     %self: %X = bind_name self, %self.param
    143. 

  143. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param1
    144. 

  144. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    145. 

  145. // CHECK:STDOUT:   }
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: !members:
    148. 

  148. // CHECK:STDOUT:   .Convert = %Convert.decl
    149. 

  149. // CHECK:STDOUT:   witness = file.%impl_witness.loc19
    150. 

  150. // CHECK:STDOUT: }
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: class @X {
    153. 

  153. // CHECK:STDOUT:   %.loc12_8: %X.elem = field_decl n, element0 [template]
    154. 

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

  155. // CHECK:STDOUT:     %.loc12_3: %X.elem = var_pattern %.loc12_8
    156. 

  156. // CHECK:STDOUT:   }
    157. 

  157. // CHECK:STDOUT:   %.var: ref %X.elem = var <none>
    158. 

  158. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %struct_type.n [template = constants.%complete_type.54b]
    159. 

  159. // CHECK:STDOUT:   complete_type_witness = %complete_type
    160. 

  160. // CHECK:STDOUT:
    161. 

  161. // CHECK:STDOUT: !members:
    162. 

  162. // CHECK:STDOUT:   .Self = constants.%X
    163. 

  163. // CHECK:STDOUT:   .n = %.loc12_8
    164. 

  164. // CHECK:STDOUT: }
    165. 

  165. // CHECK:STDOUT:
    166. 

  166. // CHECK:STDOUT: fn @Convert.2[%self.param_patt: %i32]() -> %return.param_patt: %X {
    167. 

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

  168. // CHECK:STDOUT:   %self.ref: %i32 = name_ref self, %self
    169. 

  169. // CHECK:STDOUT:   %.loc16_51.1: %struct_type.n = struct_literal (%self.ref)
    170. 

  170. // CHECK:STDOUT:   %.loc16_51.2: ref %i32 = class_element_access %return, element0
    171. 

  171. // CHECK:STDOUT:   %.loc16_51.3: init %i32 = initialize_from %self.ref to %.loc16_51.2
    172. 

  172. // CHECK:STDOUT:   %.loc16_51.4: init %X = class_init (%.loc16_51.3), %return
    173. 

  173. // CHECK:STDOUT:   %.loc16_52: init %X = converted %.loc16_51.1, %.loc16_51.4
    174. 

  174. // CHECK:STDOUT:   return %.loc16_52 to %return
    175. 

  175. // CHECK:STDOUT: }
    176. 

  176. // CHECK:STDOUT:
    177. 

  177. // CHECK:STDOUT: fn @Convert.3[%self.param_patt: %X]() -> %i32 {
    178. 

  178. // CHECK:STDOUT: !entry:
    179. 

  179. // CHECK:STDOUT:   %self.ref: %X = name_ref self, %self
    180. 

  180. // CHECK:STDOUT:   %n.ref: %X.elem = name_ref n, @X.%.loc12_8 [template = @X.%.loc12_8]
    181. 

  181. // CHECK:STDOUT:   %.loc20_45.1: ref %i32 = class_element_access %self.ref, element0
    182. 

  182. // CHECK:STDOUT:   %.loc20_45.2: %i32 = bind_value %.loc20_45.1
    183. 

  183. // CHECK:STDOUT:   return %.loc20_45.2
    184. 

  184. // CHECK:STDOUT: }
    185. 

  185. // CHECK:STDOUT:
    186. 

  186. // CHECK:STDOUT: fn @__global_init() {
    187. 

  187. // CHECK:STDOUT: !entry:
    188. 

  188. // CHECK:STDOUT:   %int_4: Core.IntLiteral = int_value 4 [template = constants.%int_4.0c1]
    189. 

  189. // CHECK:STDOUT:   %int_32.loc23_21: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    190. 

  190. // CHECK:STDOUT:   %i32.loc23_21: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    191. 

  191. // CHECK:STDOUT:   %impl.elem0.loc23_18: %.214 = impl_witness_access constants.%impl_witness.882, element0 [template = constants.%Convert.197]
    192. 

  192. // CHECK:STDOUT:   %bound_method.loc23_18: <bound method> = bound_method %int_4, %impl.elem0.loc23_18 [template = constants.%Convert.bound.e80]
    193. 

  193. // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %bound_method.loc23_18, @Convert.7(constants.%int_32) [template = constants.%Convert.specific_fn]
    194. 

  194. // CHECK:STDOUT:   %int.convert_checked: init %i32 = call %specific_fn(%int_4) [template = constants.%int_4.940]
    195. 

  195. // CHECK:STDOUT:   %.loc23_18.1: %i32 = value_of_initializer %int.convert_checked [template = constants.%int_4.940]
    196. 

  196. // CHECK:STDOUT:   %.loc23_18.2: %i32 = converted %int_4, %.loc23_18.1 [template = constants.%int_4.940]
    197. 

  197. // CHECK:STDOUT:   %X.ref: type = name_ref X, file.%X.decl [template = constants.%X]
    198. 

  198. // CHECK:STDOUT:   %impl.elem0.loc23_26: %.b22 = impl_witness_access constants.%impl_witness.491, element0 [template = constants.%Convert.311]
    199. 

  199. // CHECK:STDOUT:   %bound_method.loc23_26: <bound method> = bound_method %.loc23_18.2, %impl.elem0.loc23_26 [template = constants.%Convert.bound.483]
    200. 

  200. // CHECK:STDOUT:   %.loc23_26.1: ref %X = temporary_storage
    201. 

  201. // CHECK:STDOUT:   %Convert.call.loc23_26: init %X = call %bound_method.loc23_26(%.loc23_18.2) to %.loc23_26.1
    202. 

  202. // CHECK:STDOUT:   %.loc23_26.2: init %X = converted %.loc23_18.2, %Convert.call.loc23_26
    203. 

  203. // CHECK:STDOUT:   %int_32.loc23_35: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    204. 

  204. // CHECK:STDOUT:   %i32.loc23_35: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    205. 

  205. // CHECK:STDOUT:   %impl.elem0.loc23_32: %.599 = impl_witness_access constants.%impl_witness.662, element0 [template = constants.%Convert.8bb]
    206. 

  206. // CHECK:STDOUT:   %bound_method.loc23_32: <bound method> = bound_method %.loc23_26.2, %impl.elem0.loc23_32
    207. 

  207. // CHECK:STDOUT:   %.loc23_26.3: ref %X = temporary %.loc23_26.1, %.loc23_26.2
    208. 

  208. // CHECK:STDOUT:   %.loc23_26.4: %X = bind_value %.loc23_26.3
    209. 

  209. // CHECK:STDOUT:   %Convert.call.loc23_32: init %i32 = call %bound_method.loc23_32(%.loc23_26.4)
    210. 

  210. // CHECK:STDOUT:   %.loc23_32.1: %i32 = value_of_initializer %Convert.call.loc23_32
    211. 

  211. // CHECK:STDOUT:   %.loc23_32.2: %i32 = converted %.loc23_26.2, %.loc23_32.1
    212. 

  212. // CHECK:STDOUT:   return
    213. 

  213. // CHECK:STDOUT: }
    214. 

  214. // CHECK:STDOUT:
    215.