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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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interface
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fail_todo_generic_default_fn.carbon

fail_todo_generic_default_fn.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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/none.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/interface/fail_todo_generic_default_fn.carbon
    12. 

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

  13. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interface/fail_todo_generic_default_fn.carbon
    14. 

  14. 

  15. interface I(T:! type) {
    16. 

  16.   // TODO: Use `default` here.
    17. 

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

  18. }
    19. 

  19. 

  20. // CHECK:STDERR: fail_todo_generic_default_fn.carbon:[[@LINE+7]]:16: error: duplicate name `F` being declared in the same scope [NameDeclDuplicate]
    21. 

  21. // CHECK:STDERR: fn I(T:! type).F[self: Self]() -> Self { return self; }
    22. 

  22. // CHECK:STDERR:                ^
    23. 

  23. // CHECK:STDERR: fail_todo_generic_default_fn.carbon:[[@LINE-6]]:3: note: name is previously declared here [NameDeclPrevious]
    24. 

  24. // CHECK:STDERR:   fn F[self: Self]() -> Self;
    25. 

  25. // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
    26. 

  26. // CHECK:STDERR:
    27. 

  27. fn I(T:! type).F[self: Self]() -> Self { return self; }
    28. 

  28. 

  29. // CHECK:STDOUT: --- fail_todo_generic_default_fn.carbon
    30. 

  30. // CHECK:STDOUT:
    31. 

  31. // CHECK:STDOUT: constants {
    32. 

  32. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
    33. 

  33. // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
    34. 

  34. // CHECK:STDOUT:   %I.type.dac: type = generic_interface_type @I [concrete]
    35. 

  35. // CHECK:STDOUT:   %I.generic: %I.type.dac = struct_value () [concrete]
    36. 

  36. // CHECK:STDOUT:   %I.type.325: type = facet_type <@I, @I(%T)> [symbolic]
    37. 

  37. // CHECK:STDOUT:   %Self: %I.type.325 = bind_symbolic_name Self, 1 [symbolic]
    38. 

  38. // CHECK:STDOUT:   %Self.as_type: type = facet_access_type %Self [symbolic]
    39. 

  39. // CHECK:STDOUT:   %pattern_type.4be: type = pattern_type %Self.as_type [symbolic]
    40. 

  40. // CHECK:STDOUT:   %F.type.2aef59.1: type = fn_type @F.loc17, @I(%T) [symbolic]
    41. 

  41. // CHECK:STDOUT:   %F.bb2dd4.1: %F.type.2aef59.1 = struct_value () [symbolic]
    42. 

  42. // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T) [symbolic]
    43. 

  43. // CHECK:STDOUT:   %assoc0: %I.assoc_type = assoc_entity element0, @I.%F.decl [symbolic]
    44. 

  44. // CHECK:STDOUT:   %F.type.2aef59.2: type = fn_type @F.loc27, @I(%T) [symbolic]
    45. 

  45. // CHECK:STDOUT:   %F.bb2dd4.2: %F.type.2aef59.2 = struct_value () [symbolic]
    46. 

  46. // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type [symbolic]
    47. 

  47. // CHECK:STDOUT: }
    48. 

  48. // CHECK:STDOUT:
    49. 

  49. // CHECK:STDOUT: file {
    50. 

  50. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    51. 

  51. // CHECK:STDOUT:     .I = %I.decl
    52. 

  52. // CHECK:STDOUT:   }
    53. 

  53. // CHECK:STDOUT:   %I.decl: %I.type.dac = interface_decl @I [concrete = constants.%I.generic] {
    54. 

  54. // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
    55. 

  55. // CHECK:STDOUT:   } {
    56. 

  56. // CHECK:STDOUT:     %T.loc15_13.1: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_13.2 (constants.%T)]
    57. 

  57. // CHECK:STDOUT:   }
    58. 

  58. // CHECK:STDOUT:   %F.decl: %F.type.2aef59.2 = fn_decl @F.loc27 [symbolic = constants.%F.bb2dd4.2] {
    59. 

  59. // CHECK:STDOUT:     %self.patt: @F.loc27.%pattern_type (%pattern_type.4be) = binding_pattern self [concrete]
    60. 

  60. // CHECK:STDOUT:     %self.param_patt: @F.loc27.%pattern_type (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
    61. 

  61. // CHECK:STDOUT:     %return.patt: @F.loc27.%pattern_type (%pattern_type.4be) = return_slot_pattern [concrete]
    62. 

  62. // CHECK:STDOUT:     %return.param_patt: @F.loc27.%pattern_type (%pattern_type.4be) = out_param_pattern %return.patt, call_param1 [concrete]
    63. 

  63. // CHECK:STDOUT:   } {
    64. 

  64. // CHECK:STDOUT:     %T.loc27_6: type = bind_symbolic_name T, 0 [symbolic = @I.%T.loc15_13.2 (constants.%T)]
    65. 

  65. // CHECK:STDOUT:     %.loc27_35.1: @F.loc27.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
    66. 

  66. // CHECK:STDOUT:     %Self.ref.loc27_35: @F.loc27.%I.type (%I.type.325) = name_ref Self, %.loc27_35.1 [symbolic = %Self (constants.%Self)]
    67. 

  67. // CHECK:STDOUT:     %Self.as_type.loc27_35: type = facet_access_type %Self.ref.loc27_35 [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)]
    68. 

  68. // CHECK:STDOUT:     %.loc27_35.2: type = converted %Self.ref.loc27_35, %Self.as_type.loc27_35 [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)]
    69. 

  69. // CHECK:STDOUT:     %self.param: @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) = value_param call_param0
    70. 

  70. // CHECK:STDOUT:     %.loc27_24.1: type = splice_block %.loc27_24.3 [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)] {
    71. 

  71. // CHECK:STDOUT:       %.loc27_24.2: @F.loc27.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
    72. 

  72. // CHECK:STDOUT:       %Self.ref.loc27_24: @F.loc27.%I.type (%I.type.325) = name_ref Self, %.loc27_24.2 [symbolic = %Self (constants.%Self)]
    73. 

  73. // CHECK:STDOUT:       %Self.as_type.loc27_24.1: type = facet_access_type %Self.ref.loc27_24 [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)]
    74. 

  74. // CHECK:STDOUT:       %.loc27_24.3: type = converted %Self.ref.loc27_24, %Self.as_type.loc27_24.1 [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)]
    75. 

  75. // CHECK:STDOUT:     }
    76. 

  76. // CHECK:STDOUT:     %self: @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) = bind_name self, %self.param
    77. 

  77. // CHECK:STDOUT:     %return.param: ref @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) = out_param call_param1
    78. 

  78. // CHECK:STDOUT:     %return: ref @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) = return_slot %return.param
    79. 

  79. // CHECK:STDOUT:   }
    80. 

  80. // CHECK:STDOUT: }
    81. 

  81. // CHECK:STDOUT:
    82. 

  82. // CHECK:STDOUT: generic interface @I(%T.loc15_13.1: type) {
    83. 

  83. // CHECK:STDOUT:   %T.loc15_13.2: type = bind_symbolic_name T, 0 [symbolic = %T.loc15_13.2 (constants.%T)]
    84. 

  84. // CHECK:STDOUT:
    85. 

  85. // CHECK:STDOUT: !definition:
    86. 

  86. // CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc15_13.2)> [symbolic = %I.type (constants.%I.type.325)]
    87. 

  87. // CHECK:STDOUT:   %Self.2: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
    88. 

  88. // CHECK:STDOUT:   %F.type: type = fn_type @F.loc17, @I(%T.loc15_13.2) [symbolic = %F.type (constants.%F.type.2aef59.1)]
    89. 

  89. // CHECK:STDOUT:   %F: @I.%F.type (%F.type.2aef59.1) = struct_value () [symbolic = %F (constants.%F.bb2dd4.1)]
    90. 

  90. // CHECK:STDOUT:   %I.assoc_type: type = assoc_entity_type @I, @I(%T.loc15_13.2) [symbolic = %I.assoc_type (constants.%I.assoc_type)]
    91. 

  91. // CHECK:STDOUT:   %assoc0.loc17_29.2: @I.%I.assoc_type (%I.assoc_type) = assoc_entity element0, %F.decl [symbolic = %assoc0.loc17_29.2 (constants.%assoc0)]
    92. 

  92. // CHECK:STDOUT:
    93. 

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

  94. // CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
    95. 

  95. // CHECK:STDOUT:     %F.decl: @I.%F.type (%F.type.2aef59.1) = fn_decl @F.loc17 [symbolic = @I.%F (constants.%F.bb2dd4.1)] {
    96. 

  96. // CHECK:STDOUT:       %self.patt: @F.loc17.%pattern_type (%pattern_type.4be) = binding_pattern self [concrete]
    97. 

  97. // CHECK:STDOUT:       %self.param_patt: @F.loc17.%pattern_type (%pattern_type.4be) = value_param_pattern %self.patt, call_param0 [concrete]
    98. 

  98. // CHECK:STDOUT:       %return.patt: @F.loc17.%pattern_type (%pattern_type.4be) = return_slot_pattern [concrete]
    99. 

  99. // CHECK:STDOUT:       %return.param_patt: @F.loc17.%pattern_type (%pattern_type.4be) = out_param_pattern %return.patt, call_param1 [concrete]
    100. 

  100. // CHECK:STDOUT:     } {
    101. 

  101. // CHECK:STDOUT:       %.loc17_25.1: @F.loc17.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
    102. 

  102. // CHECK:STDOUT:       %Self.ref.loc17_25: @F.loc17.%I.type (%I.type.325) = name_ref Self, %.loc17_25.1 [symbolic = %Self (constants.%Self)]
    103. 

  103. // CHECK:STDOUT:       %Self.as_type.loc17_25: type = facet_access_type %Self.ref.loc17_25 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
    104. 

  104. // CHECK:STDOUT:       %.loc17_25.2: type = converted %Self.ref.loc17_25, %Self.as_type.loc17_25 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
    105. 

  105. // CHECK:STDOUT:       %self.param: @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type) = value_param call_param0
    106. 

  106. // CHECK:STDOUT:       %.loc17_14.1: type = splice_block %.loc17_14.3 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)] {
    107. 

  107. // CHECK:STDOUT:         %.loc17_14.2: @F.loc17.%I.type (%I.type.325) = specific_constant @I.%Self.1, @I(constants.%T) [symbolic = %Self (constants.%Self)]
    108. 

  108. // CHECK:STDOUT:         %Self.ref.loc17_14: @F.loc17.%I.type (%I.type.325) = name_ref Self, %.loc17_14.2 [symbolic = %Self (constants.%Self)]
    109. 

  109. // CHECK:STDOUT:         %Self.as_type.loc17_14.2: type = facet_access_type %Self.ref.loc17_14 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
    110. 

  110. // CHECK:STDOUT:         %.loc17_14.3: type = converted %Self.ref.loc17_14, %Self.as_type.loc17_14.2 [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
    111. 

  111. // CHECK:STDOUT:       }
    112. 

  112. // CHECK:STDOUT:       %self: @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type) = bind_name self, %self.param
    113. 

  113. // CHECK:STDOUT:       %return.param: ref @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type) = out_param call_param1
    114. 

  114. // CHECK:STDOUT:       %return: ref @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type) = return_slot %return.param
    115. 

  115. // CHECK:STDOUT:     }
    116. 

  116. // CHECK:STDOUT:     %assoc0.loc17_29.1: @I.%I.assoc_type (%I.assoc_type) = assoc_entity element0, %F.decl [symbolic = %assoc0.loc17_29.2 (constants.%assoc0)]
    117. 

  117. // CHECK:STDOUT:
    118. 

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

  119. // CHECK:STDOUT:     .Self = %Self.1
    120. 

  120. // CHECK:STDOUT:     .F = %assoc0.loc17_29.1
    121. 

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

  122. // CHECK:STDOUT:   }
    123. 

  123. // CHECK:STDOUT: }
    124. 

  124. // CHECK:STDOUT:
    125. 

  125. // CHECK:STDOUT: generic fn @F.loc17(@I.%T.loc15_13.1: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
    126. 

  126. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic = %T (constants.%T)]
    127. 

  127. // CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T)> [symbolic = %I.type (constants.%I.type.325)]
    128. 

  128. // CHECK:STDOUT:   %Self: @F.loc17.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
    129. 

  129. // CHECK:STDOUT:   %Self.as_type.loc17_14.1: type = facet_access_type %Self [symbolic = %Self.as_type.loc17_14.1 (constants.%Self.as_type)]
    130. 

  130. // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc17_14.1 [symbolic = %pattern_type (constants.%pattern_type.4be)]
    131. 

  131. // CHECK:STDOUT:
    132. 

  132. // CHECK:STDOUT:   fn(%self.param: @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type)) -> @F.loc17.%Self.as_type.loc17_14.1 (%Self.as_type);
    133. 

  133. // CHECK:STDOUT: }
    134. 

  134. // CHECK:STDOUT:
    135. 

  135. // CHECK:STDOUT: generic fn @F.loc27(%T.loc27_6: type, @I.%Self.1: @I.%I.type (%I.type.325)) {
    136. 

  136. // CHECK:STDOUT:   %T.loc27_24: type = bind_symbolic_name T, 0 [symbolic = %T.loc27_24 (constants.%T)]
    137. 

  137. // CHECK:STDOUT:   %I.type: type = facet_type <@I, @I(%T.loc27_24)> [symbolic = %I.type (constants.%I.type.325)]
    138. 

  138. // CHECK:STDOUT:   %Self: @F.loc27.%I.type (%I.type.325) = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self)]
    139. 

  139. // CHECK:STDOUT:   %Self.as_type.loc27_24.2: type = facet_access_type %Self [symbolic = %Self.as_type.loc27_24.2 (constants.%Self.as_type)]
    140. 

  140. // CHECK:STDOUT:   %pattern_type: type = pattern_type %Self.as_type.loc27_24.2 [symbolic = %pattern_type (constants.%pattern_type.4be)]
    141. 

  141. // CHECK:STDOUT:
    142. 

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

  143. // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Self.as_type.loc27_24.2 [symbolic = %require_complete (constants.%require_complete)]
    144. 

  144. // CHECK:STDOUT:
    145. 

  145. // CHECK:STDOUT:   fn(%self.param: @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type)) -> @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) {
    146. 

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

  147. // CHECK:STDOUT:     %self.ref: @F.loc27.%Self.as_type.loc27_24.2 (%Self.as_type) = name_ref self, %self
    148. 

  148. // CHECK:STDOUT:     return %self.ref
    149. 

  149. // CHECK:STDOUT:   }
    150. 

  150. // CHECK:STDOUT: }
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: specific @I(constants.%T) {
    153. 

  153. // CHECK:STDOUT:   %T.loc15_13.2 => constants.%T
    154. 

  154. // CHECK:STDOUT:
    155. 

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

  156. // CHECK:STDOUT:   %I.type => constants.%I.type.325
    157. 

  157. // CHECK:STDOUT:   %Self.2 => constants.%Self
    158. 

  158. // CHECK:STDOUT:   %F.type => constants.%F.type.2aef59.1
    159. 

  159. // CHECK:STDOUT:   %F => constants.%F.bb2dd4.1
    160. 

  160. // CHECK:STDOUT:   %I.assoc_type => constants.%I.assoc_type
    161. 

  161. // CHECK:STDOUT:   %assoc0.loc17_29.2 => constants.%assoc0
    162. 

  162. // CHECK:STDOUT: }
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: specific @F.loc17(constants.%T, constants.%Self) {
    165. 

  165. // CHECK:STDOUT:   %T => constants.%T
    166. 

  166. // CHECK:STDOUT:   %I.type => constants.%I.type.325
    167. 

  167. // CHECK:STDOUT:   %Self => constants.%Self
    168. 

  168. // CHECK:STDOUT:   %Self.as_type.loc17_14.1 => constants.%Self.as_type
    169. 

  169. // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
    170. 

  170. // CHECK:STDOUT: }
    171. 

  171. // CHECK:STDOUT:
    172. 

  172. // CHECK:STDOUT: specific @F.loc27(constants.%T, constants.%Self) {
    173. 

  173. // CHECK:STDOUT:   %T.loc27_24 => constants.%T
    174. 

  174. // CHECK:STDOUT:   %I.type => constants.%I.type.325
    175. 

  175. // CHECK:STDOUT:   %Self => constants.%Self
    176. 

  176. // CHECK:STDOUT:   %Self.as_type.loc27_24.2 => constants.%Self.as_type
    177. 

  177. // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.4be
    178. 

  178. // CHECK:STDOUT: }
    179. 

  179. // CHECK:STDOUT:
    180.