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instance_method.carbon

instance_method.carbon 11 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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
    6. 

  6. // TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
    7. 

  7. // EXTRA-ARGS: --dump-sem-ir-ranges=if-present
    8. 

  8. //
    9. 

  9. // AUTOUPDATE
    10. 

  10. // TIP: To test this file alone, run:
    11. 

  11. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/impl/lookup/instance_method.carbon
    12. 

  12. // TIP: To dump output, run:
    13. 

  13. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/impl/lookup/instance_method.carbon
    14. 

  14. 

  15. class C;
    16. 

  16. 

  17. interface I {
    18. 

  18.   fn F[self: Self]() -> i32;
    19. 

  19. }
    20. 

  20. 

  21. class C {
    22. 

  22.   extend impl as I {
    23. 

  23.     fn F[self: Self]() -> i32;
    24. 

  24.   }
    25. 

  25. }
    26. 

  26. 

  27. fn F(c: C) -> i32 {
    28. 

  28.   return c.F();
    29. 

  29. }
    30. 

  30. 

  31. // CHECK:STDOUT: --- instance_method.carbon
    32. 

  32. // CHECK:STDOUT:
    33. 

  33. // CHECK:STDOUT: constants {
    34. 

  34. // CHECK:STDOUT:   %C: type = class_type @C [concrete]
    35. 

  35. // CHECK:STDOUT:   %I.type: type = facet_type <@I> [concrete]
    36. 

  36. // CHECK:STDOUT:   %Self: %I.type = symbolic_binding Self, 0 [symbolic]
    37. 

  37. // CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic]
    38. 

  38. // CHECK:STDOUT:   %pattern_type.89c: type = pattern_type %Self.binding.as_type [symbolic]
    39. 

  39. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    40. 

  40. // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
    41. 

  41. // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
    42. 

  42. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    43. 

  43. // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
    44. 

  44. // CHECK:STDOUT:   %I.F.type: type = fn_type @I.F [concrete]
    45. 

  45. // CHECK:STDOUT:   %I.F: %I.F.type = struct_value () [concrete]
    46. 

  46. // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I [concrete]
    47. 

  47. // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%I.F.decl [concrete]
    48. 

  48. // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness @C.%I.impl_witness_table [concrete]
    49. 

  49. // CHECK:STDOUT:   %pattern_type.c48: type = pattern_type %C [concrete]
    50. 

  50. // CHECK:STDOUT:   %C.as.I.impl.F.type: type = fn_type @C.as.I.impl.F [concrete]
    51. 

  51. // CHECK:STDOUT:   %C.as.I.impl.F: %C.as.I.impl.F.type = struct_value () [concrete]
    52. 

  52. // CHECK:STDOUT:   %I.facet: %I.type = facet_value %C, (%I.impl_witness) [concrete]
    53. 

  53. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    54. 

  54. // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [concrete]
    55. 

  55. // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
    56. 

  56. // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
    57. 

  57. // CHECK:STDOUT:   %.635: type = fn_type_with_self_type %I.F.type, %I.facet [concrete]
    58. 

  58. // CHECK:STDOUT: }
    59. 

  59. // CHECK:STDOUT:
    60. 

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

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

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

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

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

  65. // CHECK:STDOUT:   }
    66. 

  66. // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
    67. 

  67. // CHECK:STDOUT: }
    68. 

  68. // CHECK:STDOUT:
    69. 

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

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

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

  72. // CHECK:STDOUT:     .C = %C.decl.loc15
    73. 

  73. // CHECK:STDOUT:     .I = %I.decl
    74. 

  74. // CHECK:STDOUT:     .F = %F.decl
    75. 

  75. // CHECK:STDOUT:   }
    76. 

  76. // CHECK:STDOUT:   %Core.import = import Core
    77. 

  77. // CHECK:STDOUT:   %C.decl.loc15: type = class_decl @C [concrete = constants.%C] {} {}
    78. 

  78. // CHECK:STDOUT:   %I.decl: type = interface_decl @I [concrete = constants.%I.type] {} {}
    79. 

  79. // CHECK:STDOUT:   %C.decl.loc21: type = class_decl @C [concrete = constants.%C] {} {}
    80. 

  80. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
    81. 

  81. // CHECK:STDOUT:     %c.patt: %pattern_type.c48 = value_binding_pattern c [concrete]
    82. 

  82. // CHECK:STDOUT:     %c.param_patt: %pattern_type.c48 = value_param_pattern %c.patt, call_param0 [concrete]
    83. 

  83. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    84. 

  84. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
    85. 

  85. // CHECK:STDOUT:   } {
    86. 

  86. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    87. 

  87. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    88. 

  88. // CHECK:STDOUT:     %c.param: %C = value_param call_param0
    89. 

  89. // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl.loc15 [concrete = constants.%C]
    90. 

  90. // CHECK:STDOUT:     %c: %C = value_binding c, %c.param
    91. 

  91. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
    92. 

  92. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    93. 

  93. // CHECK:STDOUT:   }
    94. 

  94. // CHECK:STDOUT: }
    95. 

  95. // CHECK:STDOUT:
    96. 

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

  97. // CHECK:STDOUT:   %Self: %I.type = symbolic_binding Self, 0 [symbolic = constants.%Self]
    98. 

  98. // CHECK:STDOUT:   %I.F.decl: %I.F.type = fn_decl @I.F [concrete = constants.%I.F] {
    99. 

  99. // CHECK:STDOUT:     %self.patt: @I.F.%pattern_type (%pattern_type.89c) = value_binding_pattern self [concrete]
    100. 

  100. // CHECK:STDOUT:     %self.param_patt: @I.F.%pattern_type (%pattern_type.89c) = value_param_pattern %self.patt, call_param0 [concrete]
    101. 

  101. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    102. 

  102. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
    103. 

  103. // CHECK:STDOUT:   } {
    104. 

  104. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    105. 

  105. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    106. 

  106. // CHECK:STDOUT:     %self.param: @I.F.%Self.binding.as_type (%Self.binding.as_type) = value_param call_param0
    107. 

  107. // CHECK:STDOUT:     %.loc18_14.1: type = splice_block %.loc18_14.2 [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)] {
    108. 

  108. // CHECK:STDOUT:       %Self.ref: %I.type = name_ref Self, @I.%Self [symbolic = %Self (constants.%Self)]
    109. 

  109. // CHECK:STDOUT:       %Self.as_type: type = facet_access_type %Self.ref [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
    110. 

  110. // CHECK:STDOUT:       %.loc18_14.2: type = converted %Self.ref, %Self.as_type [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
    111. 

  111. // CHECK:STDOUT:     }
    112. 

  112. // CHECK:STDOUT:     %self: @I.F.%Self.binding.as_type (%Self.binding.as_type) = value_binding self, %self.param
    113. 

  113. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
    114. 

  114. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    115. 

  115. // CHECK:STDOUT:   }
    116. 

  116. // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, %I.F.decl [concrete = constants.%assoc0]
    117. 

  117. // CHECK:STDOUT:
    118. 

  118. // CHECK:STDOUT: !members:
    119. 

  119. // CHECK:STDOUT:   .Self = %Self
    120. 

  120. // CHECK:STDOUT:   .F = %assoc0
    121. 

  121. // CHECK:STDOUT:   witness = (%I.F.decl)
    122. 

  122. // CHECK:STDOUT:
    123. 

  123. // CHECK:STDOUT: !requires:
    124. 

  124. // CHECK:STDOUT: }
    125. 

  125. // CHECK:STDOUT:
    126. 

  126. // CHECK:STDOUT: impl @C.as.I.impl: %Self.ref as %I.ref {
    127. 

  127. // CHECK:STDOUT:   %C.as.I.impl.F.decl: %C.as.I.impl.F.type = fn_decl @C.as.I.impl.F [concrete = constants.%C.as.I.impl.F] {
    128. 

  128. // CHECK:STDOUT:     %self.patt: %pattern_type.c48 = value_binding_pattern self [concrete]
    129. 

  129. // CHECK:STDOUT:     %self.param_patt: %pattern_type.c48 = value_param_pattern %self.patt, call_param0 [concrete]
    130. 

  130. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    131. 

  131. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
    132. 

  132. // CHECK:STDOUT:   } {
    133. 

  133. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    134. 

  134. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    135. 

  135. // CHECK:STDOUT:     %self.param: %C = value_param call_param0
    136. 

  136. // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
    137. 

  137. // CHECK:STDOUT:     %self: %C = value_binding self, %self.param
    138. 

  138. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
    139. 

  139. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    140. 

  140. // CHECK:STDOUT:   }
    141. 

  141. // CHECK:STDOUT:
    142. 

  142. // CHECK:STDOUT: !members:
    143. 

  143. // CHECK:STDOUT:   .F = %C.as.I.impl.F.decl
    144. 

  144. // CHECK:STDOUT:   witness = @C.%I.impl_witness
    145. 

  145. // CHECK:STDOUT: }
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: class @C {
    148. 

  148. // CHECK:STDOUT:   impl_decl @C.as.I.impl [concrete] {} {
    149. 

  149. // CHECK:STDOUT:     %Self.ref: type = name_ref Self, constants.%C [concrete = constants.%C]
    150. 

  150. // CHECK:STDOUT:     %I.ref: type = name_ref I, file.%I.decl [concrete = constants.%I.type]
    151. 

  151. // CHECK:STDOUT:   }
    152. 

  152. // CHECK:STDOUT:   %I.impl_witness_table = impl_witness_table (@C.as.I.impl.%C.as.I.impl.F.decl), @C.as.I.impl [concrete]
    153. 

  153. // CHECK:STDOUT:   %I.impl_witness: <witness> = impl_witness %I.impl_witness_table [concrete = constants.%I.impl_witness]
    154. 

  154. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type.357]
    155. 

  155. // CHECK:STDOUT:   complete_type_witness = %complete_type
    156. 

  156. // CHECK:STDOUT:
    157. 

  157. // CHECK:STDOUT: !members:
    158. 

  158. // CHECK:STDOUT:   .Self = constants.%C
    159. 

  159. // CHECK:STDOUT:   .I = <poisoned>
    160. 

  160. // CHECK:STDOUT:   .F = <poisoned>
    161. 

  161. // CHECK:STDOUT:   extend @C.as.I.impl.%I.ref
    162. 

  162. // CHECK:STDOUT: }
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: generic fn @I.F(@I.%Self: %I.type) {
    165. 

  165. // CHECK:STDOUT:   %Self: %I.type = symbolic_binding Self, 0 [symbolic = %Self (constants.%Self)]
    166. 

  166. // CHECK:STDOUT:   %Self.binding.as_type: type = symbolic_binding_type Self, 0, %Self [symbolic = %Self.binding.as_type (constants.%Self.binding.as_type)]
    167. 

  167. // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.binding.as_type [symbolic = %pattern_type (constants.%pattern_type.89c)]
    168. 

  168. // CHECK:STDOUT:
    169. 

  169. // CHECK:STDOUT:   fn(%self.param: @I.F.%Self.binding.as_type (%Self.binding.as_type)) -> %i32;
    170. 

  170. // CHECK:STDOUT: }
    171. 

  171. // CHECK:STDOUT:
    172. 

  172. // CHECK:STDOUT: fn @C.as.I.impl.F(%self.param: %C) -> %i32;
    173. 

  173. // CHECK:STDOUT:
    174. 

  174. // CHECK:STDOUT: fn @F(%c.param: %C) -> %i32 {
    175. 

  175. // CHECK:STDOUT: !entry:
    176. 

  176. // CHECK:STDOUT:   %c.ref: %C = name_ref c, %c
    177. 

  177. // CHECK:STDOUT:   %F.ref: %I.assoc_type = name_ref F, @I.%assoc0 [concrete = constants.%assoc0]
    178. 

  178. // CHECK:STDOUT:   %impl.elem0: %.635 = impl_witness_access constants.%I.impl_witness, element0 [concrete = constants.%C.as.I.impl.F]
    179. 

  179. // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %c.ref, %impl.elem0
    180. 

  180. // CHECK:STDOUT:   %C.as.I.impl.F.call: init %i32 = call %bound_method(%c.ref)
    181. 

  181. // CHECK:STDOUT:   return %C.as.I.impl.F.call to %return
    182. 

  182. // CHECK:STDOUT: }
    183. 

  183. // CHECK:STDOUT:
    184. 

  184. // CHECK:STDOUT: specific @I.F(constants.%Self) {
    185. 

  185. // CHECK:STDOUT:   %Self => constants.%Self
    186. 

  186. // CHECK:STDOUT:   %Self.binding.as_type => constants.%Self.binding.as_type
    187. 

  187. // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.89c
    188. 

  188. // CHECK:STDOUT: }
    189. 

  189. // CHECK:STDOUT:
    190. 

  190. // CHECK:STDOUT: specific @I.F(constants.%I.facet) {
    191. 

  191. // CHECK:STDOUT:   %Self => constants.%I.facet
    192. 

  192. // CHECK:STDOUT:   %Self.binding.as_type => constants.%C
    193. 

  193. // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.c48
    194. 

  194. // CHECK:STDOUT: }
    195. 

  195. // CHECK:STDOUT:
    196.