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fail_generic.carbon

fail_generic.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/let/fail_generic.carbon
    8. 

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

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

  10. 

  11. // TODO: Should this be valid?
    12. 

  12. fn F(a: i32) -> i32 {
    13. 

  13.   let T:! type = i32;
    14. 

  14.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+7]]:3: error: cannot implicitly convert from `i32` to `T`
    15. 

  15.   // CHECK:STDERR:   let x: T = 5;
    16. 

  16.   // CHECK:STDERR:   ^~~~~~~~~~~~~
    17. 

  17.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+4]]:3: note: type `i32` does not implement interface `ImplicitAs`
    18. 

  18.   // CHECK:STDERR:   let x: T = 5;
    19. 

  19.   // CHECK:STDERR:   ^~~~~~~~~~~~~
    20. 

  20.   // CHECK:STDERR:
    21. 

  21.   let x: T = 5;
    22. 

  22.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+6]]:3: error: cannot implicitly convert from `T` to `i32`
    23. 

  23.   // CHECK:STDERR:   return x;
    24. 

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

  25.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+3]]:3: note: type `<error>` does not implement interface `ImplicitAs`
    26. 

  26.   // CHECK:STDERR:   return x;
    27. 

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

  28.   return x;
    29. 

  29. }
    30. 

  30. 

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

  32. // CHECK:STDOUT:
    33. 

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

  34. // CHECK:STDOUT:   %Int32.type: type = fn_type @Int32 [template]
    35. 

  35. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    36. 

  36. // CHECK:STDOUT:   %Int32: %Int32.type = struct_value () [template]
    37. 

  37. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    38. 

  38. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    39. 

  39. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
    40. 

  40. // CHECK:STDOUT:   %.2: i32 = int_literal 5 [template]
    41. 

  41. // CHECK:STDOUT:   %ImplicitAs.type.1: type = generic_interface_type @ImplicitAs [template]
    42. 

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

  43. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
    44. 

  44. // CHECK:STDOUT:   %ImplicitAs.type.2: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
    45. 

  45. // CHECK:STDOUT:   %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2) = bind_symbolic_name Self, 1 [symbolic]
    46. 

  46. // CHECK:STDOUT:   %Dest.patt: type = symbolic_binding_pattern Dest, 0 [symbolic]
    47. 

  47. // CHECK:STDOUT:   %Self.2: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic]
    48. 

  48. // CHECK:STDOUT:   %Convert.type.1: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic]
    49. 

  49. // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
    50. 

  50. // CHECK:STDOUT:   %.3: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
    51. 

  51. // CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.6 [symbolic]
    52. 

  52. // CHECK:STDOUT:   %ImplicitAs.type.3: type = interface_type @ImplicitAs, @ImplicitAs(%T) [symbolic]
    53. 

  53. // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert, @ImplicitAs(%T) [symbolic]
    54. 

  54. // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
    55. 

  55. // CHECK:STDOUT:   %.5: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.2 [symbolic]
    56. 

  56. // CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.6 [symbolic]
    57. 

  57. // CHECK:STDOUT:   %.7: %.3 = assoc_entity element0, imports.%import_ref.7 [symbolic]
    58. 

  58. // CHECK:STDOUT:   %ImplicitAs.type.4: type = interface_type @ImplicitAs, @ImplicitAs(i32) [template]
    59. 

  59. // CHECK:STDOUT:   %Convert.type.3: type = fn_type @Convert, @ImplicitAs(i32) [template]
    60. 

  60. // CHECK:STDOUT:   %Convert.3: %Convert.type.3 = struct_value () [template]
    61. 

  61. // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.4, %Convert.type.3 [template]
    62. 

  62. // CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.6 [template]
    63. 

  63. // CHECK:STDOUT: }
    64. 

  64. // CHECK:STDOUT:
    65. 

  65. // CHECK:STDOUT: imports {
    66. 

  66. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    67. 

  67. // CHECK:STDOUT:     .Int32 = %import_ref.1
    68. 

  68. // CHECK:STDOUT:     .ImplicitAs = %import_ref.2
    69. 

  69. // CHECK:STDOUT:     import Core//prelude
    70. 

  70. // CHECK:STDOUT:     import Core//prelude/operators
    71. 

  71. // CHECK:STDOUT:     import Core//prelude/types
    72. 

  72. // CHECK:STDOUT:     import Core//prelude/operators/arithmetic
    73. 

  73. // CHECK:STDOUT:     import Core//prelude/operators/as
    74. 

  74. // CHECK:STDOUT:     import Core//prelude/operators/bitwise
    75. 

  75. // CHECK:STDOUT:     import Core//prelude/operators/comparison
    76. 

  76. // CHECK:STDOUT:     import Core//prelude/types/bool
    77. 

  77. // CHECK:STDOUT:   }
    78. 

  78. // CHECK:STDOUT:   %import_ref.1: %Int32.type = import_ref Core//prelude/types, inst+9, loaded [template = constants.%Int32]
    79. 

  79. // CHECK:STDOUT:   %import_ref.2: %ImplicitAs.type.1 = import_ref Core//prelude/operators/as, inst+46, loaded [template = constants.%ImplicitAs]
    80. 

  80. // CHECK:STDOUT:   %import_ref.3 = import_ref Core//prelude/operators/as, inst+52, unloaded
    81. 

  81. // CHECK:STDOUT:   %import_ref.4: @ImplicitAs.%.1 (%.3) = import_ref Core//prelude/operators/as, inst+71, loaded [symbolic = @ImplicitAs.%.2 (constants.%.7)]
    82. 

  82. // CHECK:STDOUT:   %import_ref.5 = import_ref Core//prelude/operators/as, inst+64, unloaded
    83. 

  83. // CHECK:STDOUT:   %import_ref.6 = import_ref Core//prelude/operators/as, inst+64, unloaded
    84. 

  84. // CHECK:STDOUT:   %import_ref.7 = import_ref Core//prelude/operators/as, inst+64, unloaded
    85. 

  85. // CHECK:STDOUT: }
    86. 

  86. // CHECK:STDOUT:
    87. 

  87. // CHECK:STDOUT: file {
    88. 

  88. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    89. 

  89. // CHECK:STDOUT:     .Core = imports.%Core
    90. 

  90. // CHECK:STDOUT:     .F = %F.decl
    91. 

  91. // CHECK:STDOUT:   }
    92. 

  92. // CHECK:STDOUT:   %Core.import = import Core
    93. 

  93. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    94. 

  94. // CHECK:STDOUT:     %a.patt: i32 = binding_pattern a
    95. 

  95. // CHECK:STDOUT:     %a.param_patt: i32 = param_pattern %a.patt, runtime_param0
    96. 

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

  97. // CHECK:STDOUT:     %int.make_type_32.loc12_9: init type = call constants.%Int32() [template = i32]
    98. 

  98. // CHECK:STDOUT:     %.loc12_9.1: type = value_of_initializer %int.make_type_32.loc12_9 [template = i32]
    99. 

  99. // CHECK:STDOUT:     %.loc12_9.2: type = converted %int.make_type_32.loc12_9, %.loc12_9.1 [template = i32]
    100. 

  100. // CHECK:STDOUT:     %int.make_type_32.loc12_17: init type = call constants.%Int32() [template = i32]
    101. 

  101. // CHECK:STDOUT:     %.loc12_17.1: type = value_of_initializer %int.make_type_32.loc12_17 [template = i32]
    102. 

  102. // CHECK:STDOUT:     %.loc12_17.2: type = converted %int.make_type_32.loc12_17, %.loc12_17.1 [template = i32]
    103. 

  103. // CHECK:STDOUT:     %return: ref i32 = var <return slot>
    104. 

  104. // CHECK:STDOUT:     %param: i32 = param runtime_param0
    105. 

  105. // CHECK:STDOUT:     %a: i32 = bind_name a, %param
    106. 

  106. // CHECK:STDOUT:   }
    107. 

  107. // CHECK:STDOUT: }
    108. 

  108. // CHECK:STDOUT:
    109. 

  109. // CHECK:STDOUT: generic interface @ImplicitAs(constants.%Dest: type) {
    110. 

  110. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
    111. 

  111. // CHECK:STDOUT:   %Dest.patt: type = symbolic_binding_pattern Dest, 0 [symbolic = %Dest.patt (constants.%Dest.patt)]
    112. 

  112. // CHECK:STDOUT:
    113. 

  113. // CHECK:STDOUT: !definition:
    114. 

  114. // CHECK:STDOUT:   %ImplicitAs.type: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.2)]
    115. 

  115. // CHECK:STDOUT:   %Self: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.2)]
    116. 

  116. // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
    117. 

  117. // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
    118. 

  118. // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.3)]
    119. 

  119. // CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.3) = assoc_entity element0, imports.%import_ref.6 [symbolic = %.2 (constants.%.4)]
    120. 

  120. // CHECK:STDOUT:
    121. 

  121. // CHECK:STDOUT:   interface {
    122. 

  122. // CHECK:STDOUT:   !members:
    123. 

  123. // CHECK:STDOUT:     .Self = imports.%import_ref.3
    124. 

  124. // CHECK:STDOUT:     .Convert = imports.%import_ref.4
    125. 

  125. // CHECK:STDOUT:     witness = (imports.%import_ref.5)
    126. 

  126. // CHECK:STDOUT:   }
    127. 

  127. // CHECK:STDOUT: }
    128. 

  128. // CHECK:STDOUT:
    129. 

  129. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
    130. 

  130. // CHECK:STDOUT:
    131. 

  131. // CHECK:STDOUT: fn @F(%a.param_patt: i32) -> i32 {
    132. 

  132. // CHECK:STDOUT: !entry:
    133. 

  133. // CHECK:STDOUT:   %int.make_type_32.loc13: init type = call constants.%Int32() [template = i32]
    134. 

  134. // CHECK:STDOUT:   %.loc13_21.1: type = value_of_initializer %int.make_type_32.loc13 [template = i32]
    135. 

  135. // CHECK:STDOUT:   %.loc13_21.2: type = converted %int.make_type_32.loc13, %.loc13_21.1 [template = i32]
    136. 

  136. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0, %.loc13_21.2 [symbolic = constants.%T]
    137. 

  137. // CHECK:STDOUT:   %T.ref: type = name_ref T, %T [symbolic = constants.%T]
    138. 

  138. // CHECK:STDOUT:   %.loc21_14: i32 = int_literal 5 [template = constants.%.2]
    139. 

  139. // CHECK:STDOUT:   %ImplicitAs.type.loc21: type = interface_type @ImplicitAs, @ImplicitAs(constants.%T) [symbolic = constants.%ImplicitAs.type.3]
    140. 

  140. // CHECK:STDOUT:   %.loc21_15.1: %.5 = specific_constant imports.%import_ref.4, @ImplicitAs(constants.%T) [symbolic = constants.%.6]
    141. 

  141. // CHECK:STDOUT:   %Convert.ref.loc21: %.5 = name_ref Convert, %.loc21_15.1 [symbolic = constants.%.6]
    142. 

  142. // CHECK:STDOUT:   %.loc21_15.2: %T = converted %.loc21_14, <error> [template = <error>]
    143. 

  143. // CHECK:STDOUT:   %x: %T = bind_name x, <error>
    144. 

  144. // CHECK:STDOUT:   %x.ref: %T = name_ref x, %x
    145. 

  145. // CHECK:STDOUT:   %ImplicitAs.type.loc28: type = interface_type @ImplicitAs, @ImplicitAs(i32) [template = constants.%ImplicitAs.type.4]
    146. 

  146. // CHECK:STDOUT:   %.loc28_11.1: %.8 = specific_constant imports.%import_ref.4, @ImplicitAs(i32) [template = constants.%.9]
    147. 

  147. // CHECK:STDOUT:   %Convert.ref.loc28: %.8 = name_ref Convert, %.loc28_11.1 [template = constants.%.9]
    148. 

  148. // CHECK:STDOUT:   %.loc28_11.2: i32 = converted %x.ref, <error> [template = <error>]
    149. 

  149. // CHECK:STDOUT:   return <error>
    150. 

  150. // CHECK:STDOUT: }
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: generic fn @Convert(constants.%Dest: type, constants.%Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2)) {
    153. 

  153. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic = %Dest (constants.%Dest)]
    154. 

  154. // CHECK:STDOUT:   %ImplicitAs.type: type = interface_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic = %ImplicitAs.type (constants.%ImplicitAs.type.2)]
    155. 

  155. // CHECK:STDOUT:   %Self: %ImplicitAs.type.2 = bind_symbolic_name Self, 1 [symbolic = %Self (constants.%Self.2)]
    156. 

  156. // CHECK:STDOUT:
    157. 

  157. // CHECK:STDOUT:   fn[%self.param_patt: @Convert.%Self (%Self.2)]() -> @Convert.%Dest (%Dest);
    158. 

  158. // CHECK:STDOUT: }
    159. 

  159. // CHECK:STDOUT:
    160. 

  160. // CHECK:STDOUT: specific @ImplicitAs(constants.%Dest) {
    161. 

  161. // CHECK:STDOUT:   %Dest => constants.%Dest
    162. 

  162. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    163. 

  163. // CHECK:STDOUT: }
    164. 

  164. // CHECK:STDOUT:
    165. 

  165. // CHECK:STDOUT: specific @ImplicitAs(@ImplicitAs.%Dest) {
    166. 

  166. // CHECK:STDOUT:   %Dest => constants.%Dest
    167. 

  167. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    168. 

  168. // CHECK:STDOUT: }
    169. 

  169. // CHECK:STDOUT:
    170. 

  170. // CHECK:STDOUT: specific @ImplicitAs(@Convert.%Dest) {
    171. 

  171. // CHECK:STDOUT:   %Dest => constants.%Dest
    172. 

  172. // CHECK:STDOUT:   %Dest.patt => constants.%Dest
    173. 

  173. // CHECK:STDOUT: }
    174. 

  174. // CHECK:STDOUT:
    175. 

  175. // CHECK:STDOUT: specific @Convert(constants.%Dest, constants.%Self.1) {
    176. 

  176. // CHECK:STDOUT:   %Dest => constants.%Dest
    177. 

  177. // CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.2
    178. 

  178. // CHECK:STDOUT:   %Self => constants.%Self.1
    179. 

  179. // CHECK:STDOUT: }
    180. 

  180. // CHECK:STDOUT:
    181. 

  181. // CHECK:STDOUT: specific @ImplicitAs(constants.%T) {
    182. 

  182. // CHECK:STDOUT:   %Dest => constants.%T
    183. 

  183. // CHECK:STDOUT:   %Dest.patt => constants.%T
    184. 

  184. // CHECK:STDOUT:
    185. 

  185. // CHECK:STDOUT: !definition:
    186. 

  186. // CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.3
    187. 

  187. // CHECK:STDOUT:   %Self => constants.%Self.2
    188. 

  188. // CHECK:STDOUT:   %Convert.type => constants.%Convert.type.2
    189. 

  189. // CHECK:STDOUT:   %Convert => constants.%Convert.2
    190. 

  190. // CHECK:STDOUT:   %.1 => constants.%.5
    191. 

  191. // CHECK:STDOUT:   %.2 => constants.%.6
    192. 

  192. // CHECK:STDOUT: }
    193. 

  193. // CHECK:STDOUT:
    194. 

  194. // CHECK:STDOUT: specific @ImplicitAs(i32) {
    195. 

  195. // CHECK:STDOUT:   %Dest => i32
    196. 

  196. // CHECK:STDOUT:   %Dest.patt => i32
    197. 

  197. // CHECK:STDOUT:
    198. 

  198. // CHECK:STDOUT: !definition:
    199. 

  199. // CHECK:STDOUT:   %ImplicitAs.type => constants.%ImplicitAs.type.4
    200. 

  200. // CHECK:STDOUT:   %Self => constants.%Self.2
    201. 

  201. // CHECK:STDOUT:   %Convert.type => constants.%Convert.type.3
    202. 

  202. // CHECK:STDOUT:   %Convert => constants.%Convert.3
    203. 

  203. // CHECK:STDOUT:   %.1 => constants.%.8
    204. 

  204. // CHECK:STDOUT:   %.2 => constants.%.9
    205. 

  205. // CHECK:STDOUT: }
    206. 

  206. // CHECK:STDOUT:
    207.