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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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function
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generic
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resolve_used.carbon

resolve_used.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/function/generic/resolve_used.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/generic/resolve_used.carbon
    10. 

  10. 

  11. // --- fail_todo_call_monomorphization_error.carbon
    12. 

  12. 

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

  14. 

  15. fn ErrorIfNIsZero(N:! Core.IntLiteral()) {
    16. 

  16.   // Check that we resolve the definition of a used specific function by
    17. 

  17.   // ensuring we produce an error when doing so. Notionally this error is
    18. 

  18.   // produced as a result of instantiating the `Core.Int` template, although
    19. 

  19.   // that's not how we currently model `Core.Int`.
    20. 

  20.   var v: Core.Int(N);
    21. 

  21. }
    22. 

  22. 

  23. fn CallNegative() {
    24. 

  24.   // TODO: This should fail during monomorphization once integer literals have
    25. 

  25.   // the type `Core.IntLiteral`.
    26. 

  26.   // CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+9]]:3: error: cannot implicitly convert from `i32` to `Core.IntLiteral` [ImplicitAsConversionFailure]
    27. 

  27.   // CHECK:STDERR:   ErrorIfNIsZero(0);
    28. 

  28.   // CHECK:STDERR:   ^~~~~~~~~~~~~~~
    29. 

  29.   // CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+6]]:3: note: type `i32` does not implement interface `ImplicitAs` [MissingImplInMemberAccessNote]
    30. 

  30.   // CHECK:STDERR:   ErrorIfNIsZero(0);
    31. 

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

  32.   // CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE-17]]:1: note: while deducing parameters of generic declared here [DeductionGenericHere]
    33. 

  33.   // CHECK:STDERR: fn ErrorIfNIsZero(N:! Core.IntLiteral()) {
    34. 

  34.   // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    35. 

  35.   ErrorIfNIsZero(0);
    36. 

  36. }
    37. 

  37. 

  38. // CHECK:STDOUT: --- fail_todo_call_monomorphization_error.carbon
    39. 

  39. // CHECK:STDOUT:
    40. 

  40. // CHECK:STDOUT: constants {
    41. 

  41. // CHECK:STDOUT:   %IntLiteral.type: type = fn_type @IntLiteral [template]
    42. 

  42. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    43. 

  43. // CHECK:STDOUT:   %IntLiteral: %IntLiteral.type = struct_value () [template]
    44. 

  44. // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
    45. 

  45. // CHECK:STDOUT:   %N.patt: Core.IntLiteral = symbolic_binding_pattern N, 0 [symbolic]
    46. 

  46. // CHECK:STDOUT:   %ErrorIfNIsZero.type: type = fn_type @ErrorIfNIsZero [template]
    47. 

  47. // CHECK:STDOUT:   %ErrorIfNIsZero: %ErrorIfNIsZero.type = struct_value () [template]
    48. 

  48. // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
    49. 

  49. // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
    50. 

  50. // CHECK:STDOUT:   %.2: type = int_type signed, %N [symbolic]
    51. 

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

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

  53. // CHECK:STDOUT:   %.3: i32 = int_value 0 [template]
    54. 

  54. // CHECK:STDOUT:   %ImplicitAs.type.1: type = generic_interface_type @ImplicitAs [template]
    55. 

  55. // CHECK:STDOUT:   %ImplicitAs: %ImplicitAs.type.1 = struct_value () [template]
    56. 

  56. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
    57. 

  57. // CHECK:STDOUT:   %ImplicitAs.type.2: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
    58. 

  58. // CHECK:STDOUT:   %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2) = bind_symbolic_name Self, 1 [symbolic]
    59. 

  59. // CHECK:STDOUT:   %Dest.patt: type = symbolic_binding_pattern Dest, 0 [symbolic]
    60. 

  60. // CHECK:STDOUT:   %Self.2: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic]
    61. 

  61. // CHECK:STDOUT:   %Convert.type.1: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic]
    62. 

  62. // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
    63. 

  63. // CHECK:STDOUT:   %.4: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
    64. 

  64. // CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.7 [symbolic]
    65. 

  65. // CHECK:STDOUT:   %ImplicitAs.type.3: type = interface_type @ImplicitAs, @ImplicitAs(Core.IntLiteral) [template]
    66. 

  66. // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert, @ImplicitAs(Core.IntLiteral) [template]
    67. 

  67. // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [template]
    68. 

  68. // CHECK:STDOUT:   %.6: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.2 [template]
    69. 

  69. // CHECK:STDOUT:   %.7: %.6 = assoc_entity element0, imports.%import_ref.7 [template]
    70. 

  70. // CHECK:STDOUT:   %.8: %.4 = assoc_entity element0, imports.%import_ref.8 [symbolic]
    71. 

  71. // CHECK:STDOUT: }
    72. 

  72. // CHECK:STDOUT:
    73. 

  73. // CHECK:STDOUT: imports {
    74. 

  74. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    75. 

  75. // CHECK:STDOUT:     .IntLiteral = %import_ref.1
    76. 

  76. // CHECK:STDOUT:     .Int = %import_ref.2
    77. 

  77. // CHECK:STDOUT:     .ImplicitAs = %import_ref.3
    78. 

  78. // CHECK:STDOUT:     import Core//prelude
    79. 

  79. // CHECK:STDOUT:     import Core//prelude/...
    80. 

  80. // CHECK:STDOUT:   }
    81. 

  81. // CHECK:STDOUT:   %import_ref.1: %IntLiteral.type = import_ref Core//prelude/types, inst+7, loaded [template = constants.%IntLiteral]
    82. 

  82. // CHECK:STDOUT:   %import_ref.2: %Int.type = import_ref Core//prelude/types, inst+30, loaded [template = constants.%Int]
    83. 

  83. // CHECK:STDOUT:   %import_ref.3: %ImplicitAs.type.1 = import_ref Core//prelude/operators/as, inst+49, loaded [template = constants.%ImplicitAs]
    84. 

  84. // CHECK:STDOUT:   %import_ref.4 = import_ref Core//prelude/operators/as, inst+55, unloaded
    85. 

  85. // CHECK:STDOUT:   %import_ref.5: @ImplicitAs.%.1 (%.4) = import_ref Core//prelude/operators/as, inst+77, loaded [symbolic = @ImplicitAs.%.2 (constants.%.8)]
    86. 

  86. // CHECK:STDOUT:   %import_ref.6 = import_ref Core//prelude/operators/as, inst+70, unloaded
    87. 

  87. // CHECK:STDOUT:   %import_ref.7 = import_ref Core//prelude/operators/as, inst+70, unloaded
    88. 

  88. // CHECK:STDOUT:   %import_ref.8 = import_ref Core//prelude/operators/as, inst+70, unloaded
    89. 

  89. // CHECK:STDOUT: }
    90. 

  90. // CHECK:STDOUT:
    91. 

  91. // CHECK:STDOUT: file {
    92. 

  92. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    93. 

  93. // CHECK:STDOUT:     .Core = imports.%Core
    94. 

  94. // CHECK:STDOUT:     .ErrorIfNIsZero = %ErrorIfNIsZero.decl
    95. 

  95. // CHECK:STDOUT:     .CallNegative = %CallNegative.decl
    96. 

  96. // CHECK:STDOUT:   }
    97. 

  97. // CHECK:STDOUT:   %Core.import = import Core
    98. 

  98. // CHECK:STDOUT:   %ErrorIfNIsZero.decl: %ErrorIfNIsZero.type = fn_decl @ErrorIfNIsZero [template = constants.%ErrorIfNIsZero] {
    99. 

  99. // CHECK:STDOUT:     %N.patt.loc4_19.1: Core.IntLiteral = symbolic_binding_pattern N, 0 [symbolic = %N.patt.loc4_19.2 (constants.%N.patt)]
    100. 

  100. // CHECK:STDOUT:     %N.param_patt: Core.IntLiteral = value_param_pattern %N.patt.loc4_19.1, runtime_param<invalid> [symbolic = %N.patt.loc4_19.2 (constants.%N.patt)]
    101. 

  101. // CHECK:STDOUT:   } {
    102. 

  102. // CHECK:STDOUT:     %Core.ref.loc4: <namespace> = name_ref Core, imports.%Core [template = imports.%Core]
    103. 

  103. // CHECK:STDOUT:     %IntLiteral.ref: %IntLiteral.type = name_ref IntLiteral, imports.%import_ref.1 [template = constants.%IntLiteral]
    104. 

  104. // CHECK:STDOUT:     %int_literal.make_type: init type = call %IntLiteral.ref() [template = Core.IntLiteral]
    105. 

  105. // CHECK:STDOUT:     %.loc4_39.1: type = value_of_initializer %int_literal.make_type [template = Core.IntLiteral]
    106. 

  106. // CHECK:STDOUT:     %.loc4_39.2: type = converted %int_literal.make_type, %.loc4_39.1 [template = Core.IntLiteral]
    107. 

  107. // CHECK:STDOUT:     %N.param: Core.IntLiteral = value_param runtime_param<invalid>
    108. 

  108. // CHECK:STDOUT:     %N.loc4_19.1: Core.IntLiteral = bind_symbolic_name N, 0, %N.param [symbolic = %N.loc4_19.2 (constants.%N)]
    109. 

  109. // CHECK:STDOUT:   }
    110. 

  110. // CHECK:STDOUT:   %CallNegative.decl: %CallNegative.type = fn_decl @CallNegative [template = constants.%CallNegative] {} {}
    111. 

  111. // CHECK:STDOUT: }
    112. 

  112. // CHECK:STDOUT:
    113. 

  113. // CHECK:STDOUT: generic interface @ImplicitAs(constants.%Dest: type) {
    114. 

  114. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
    115. 

  115. // CHECK:STDOUT:   %Dest.patt: type = symbolic_binding_pattern Dest, 0 [symbolic = %Dest.patt (constants.%Dest.patt)]
    116. 

  116. // CHECK:STDOUT:
    117. 

  117. // CHECK:STDOUT: !definition:
    118. 

  118. // CHECK:STDOUT:   %ImplicitAs.type: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.2)]
    119. 

  119. // CHECK:STDOUT:   %Self: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.2)]
    120. 

  120. // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
    121. 

  121. // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
    122. 

  122. // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.4)]
    123. 

  123. // CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.4) = assoc_entity element0, imports.%import_ref.7 [symbolic = %.2 (constants.%.5)]
    124. 

  124. // CHECK:STDOUT:
    125. 

  125. // CHECK:STDOUT:   interface {
    126. 

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

  127. // CHECK:STDOUT:     .Self = imports.%import_ref.4
    128. 

  128. // CHECK:STDOUT:     .Convert = imports.%import_ref.5
    129. 

  129. // CHECK:STDOUT:     witness = (imports.%import_ref.6)
    130. 

  130. // CHECK:STDOUT:   }
    131. 

  131. // CHECK:STDOUT: }
    132. 

  132. // CHECK:STDOUT:
    133. 

  133. // CHECK:STDOUT: fn @IntLiteral() -> type = "int_literal.make_type";
    134. 

  134. // CHECK:STDOUT:
    135. 

  135. // CHECK:STDOUT: generic fn @ErrorIfNIsZero(%N.loc4_19.1: Core.IntLiteral) {
    136. 

  136. // CHECK:STDOUT:   %N.loc4_19.2: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic = %N.loc4_19.2 (constants.%N)]
    137. 

  137. // CHECK:STDOUT:   %N.patt.loc4_19.2: Core.IntLiteral = symbolic_binding_pattern N, 0 [symbolic = %N.patt.loc4_19.2 (constants.%N.patt)]
    138. 

  138. // CHECK:STDOUT:
    139. 

  139. // CHECK:STDOUT: !definition:
    140. 

  140. // CHECK:STDOUT:   %.loc9_18: type = int_type signed, %N.loc4_19.2 [symbolic = %.loc9_18 (constants.%.2)]
    141. 

  141. // CHECK:STDOUT:
    142. 

  142. // CHECK:STDOUT:   fn(%N.param_patt: Core.IntLiteral) {
    143. 

  143. // CHECK:STDOUT:   !entry:
    144. 

  144. // CHECK:STDOUT:     %Core.ref.loc9: <namespace> = name_ref Core, imports.%Core [template = imports.%Core]
    145. 

  145. // CHECK:STDOUT:     %Int.ref: %Int.type = name_ref Int, imports.%import_ref.2 [template = constants.%Int]
    146. 

  146. // CHECK:STDOUT:     %N.ref: Core.IntLiteral = name_ref N, %N.loc4_19.1 [symbolic = %N.loc4_19.2 (constants.%N)]
    147. 

  147. // CHECK:STDOUT:     %int.make_type_signed: init type = call %Int.ref(%N.ref) [symbolic = %.loc9_18 (constants.%.2)]
    148. 

  148. // CHECK:STDOUT:     %.loc9_20.1: type = value_of_initializer %int.make_type_signed [symbolic = %.loc9_18 (constants.%.2)]
    149. 

  149. // CHECK:STDOUT:     %.loc9_20.2: type = converted %int.make_type_signed, %.loc9_20.1 [symbolic = %.loc9_18 (constants.%.2)]
    150. 

  150. // CHECK:STDOUT:     %v.var: ref @ErrorIfNIsZero.%.loc9_18 (%.2) = var v
    151. 

  151. // CHECK:STDOUT:     %v: ref @ErrorIfNIsZero.%.loc9_18 (%.2) = bind_name v, %v.var
    152. 

  152. // CHECK:STDOUT:     return
    153. 

  153. // CHECK:STDOUT:   }
    154. 

  154. // CHECK:STDOUT: }
    155. 

  155. // CHECK:STDOUT:
    156. 

  156. // CHECK:STDOUT: fn @Int(%size.param_patt: Core.IntLiteral) -> type = "int.make_type_signed";
    157. 

  157. // CHECK:STDOUT:
    158. 

  158. // CHECK:STDOUT: fn @CallNegative() {
    159. 

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

  160. // CHECK:STDOUT:   %ErrorIfNIsZero.ref: %ErrorIfNIsZero.type = name_ref ErrorIfNIsZero, file.%ErrorIfNIsZero.decl [template = constants.%ErrorIfNIsZero]
    161. 

  161. // CHECK:STDOUT:   %.loc24_18: i32 = int_value 0 [template = constants.%.3]
    162. 

  162. // CHECK:STDOUT:   %.loc24_17: Core.IntLiteral = converted %.loc24_18, <error> [template = <error>]
    163. 

  163. // CHECK:STDOUT:   return
    164. 

  164. // CHECK:STDOUT: }
    165. 

  165. // CHECK:STDOUT:
    166. 

  166. // CHECK:STDOUT: generic fn @Convert(constants.%Dest: type, constants.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2)) {
    167. 

  167. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
    168. 

  168. // CHECK:STDOUT:   %ImplicitAs.type: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.2)]
    169. 

  169. // CHECK:STDOUT:   %Self: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.2)]
    170. 

  170. // CHECK:STDOUT:
    171. 

  171. // CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self (%Self.2)]() -> @Convert.%Dest (%Dest);
    172. 

  172. // CHECK:STDOUT: }
    173. 

  173. // CHECK:STDOUT:
    174. 

  174. // CHECK:STDOUT: specific @ErrorIfNIsZero(constants.%N) {
    175. 

  175. // CHECK:STDOUT:   %N.loc4_19.2 => constants.%N
    176. 

  176. // CHECK:STDOUT:   %N.patt.loc4_19.2 => constants.%N
    177. 

  177. // CHECK:STDOUT: }
    178. 

  178. // CHECK:STDOUT:
    179. 

  179. // CHECK:STDOUT: specific @ImplicitAs(constants.%Dest) {
    180. 

  180. // CHECK:STDOUT:   %Dest => constants.%Dest
    181. 

  181. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    182. 

  182. // CHECK:STDOUT: }
    183. 

  183. // CHECK:STDOUT:
    184. 

  184. // CHECK:STDOUT: specific @ImplicitAs(@ImplicitAs.%Dest) {
    185. 

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

  186. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    187. 

  187. // CHECK:STDOUT: }
    188. 

  188. // CHECK:STDOUT:
    189. 

  189. // CHECK:STDOUT: specific @ImplicitAs(@Convert.%Dest) {
    190. 

  190. // CHECK:STDOUT:   %Dest => constants.%Dest
    191. 

  191. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    192. 

  192. // CHECK:STDOUT: }
    193. 

  193. // CHECK:STDOUT:
    194. 

  194. // CHECK:STDOUT: specific @Convert(constants.%Dest, constants.%Self.1) {
    195. 

  195. // CHECK:STDOUT:   %Dest => constants.%Dest
    196. 

  196. // CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.2
    197. 

  197. // CHECK:STDOUT:   %Self => constants.%Self.1
    198. 

  198. // CHECK:STDOUT: }
    199. 

  199. // CHECK:STDOUT:
    200. 

  200. // CHECK:STDOUT: specific @ImplicitAs(Core.IntLiteral) {
    201. 

  201. // CHECK:STDOUT:   %Dest => Core.IntLiteral
    202. 

  202. // CHECK:STDOUT:   %Dest.patt => Core.IntLiteral
    203. 

  203. // CHECK:STDOUT:
    204. 

  204. // CHECK:STDOUT: !definition:
    205. 

  205. // CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.3
    206. 

  206. // CHECK:STDOUT:   %Self => constants.%Self.2
    207. 

  207. // CHECK:STDOUT:   %Convert.type => constants.%Convert.type.2
    208. 

  208. // CHECK:STDOUT:   %Convert => constants.%Convert.2
    209. 

  209. // CHECK:STDOUT:   %.1 => constants.%.6
    210. 

  210. // CHECK:STDOUT:   %.2 => constants.%.7
    211. 

  211. // CHECK:STDOUT: }
    212. 

  212. // CHECK:STDOUT:
    213.