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carbon-lang
/
toolchain
/
check
/
testdata
/
let
/
fail_generic.carbon

fail_generic.carbon 7.7 KB
히스토리 Raw

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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]]:14: error: cannot implicitly convert expression of type `Core.IntLiteral` to `T` [ConversionFailure]
    15. 

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

  16.   // CHECK:STDERR:              ^
    17. 

  17.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+4]]:14: note: type `Core.IntLiteral` does not implement interface `Core.ImplicitAs(T)` [MissingImplInMemberAccessNote]
    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+7]]:3: error: cannot implicitly convert expression of type `T` to `i32` [ConversionFailure]
    23. 

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

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

  25.   // CHECK:STDERR: fail_generic.carbon:[[@LINE+4]]:3: note: type `T` does not implement interface `Core.ImplicitAs(i32)` [MissingImplInMemberAccessNote]
    26. 

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

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

  28.   // CHECK:STDERR:
    29. 

  29.   return x;
    30. 

  30. }
    31. 

  31. 

  32. // CHECK:STDOUT: --- fail_generic.carbon
    33. 

  33. // CHECK:STDOUT:
    34. 

  34. // CHECK:STDOUT: constants {
    35. 

  35. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    36. 

  36. // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
    37. 

  37. // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
    38. 

  38. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    39. 

  39. // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
    40. 

  40. // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
    41. 

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

  42. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
    43. 

  43. // CHECK:STDOUT:   %pattern_type.98f: type = pattern_type type [concrete]
    44. 

  44. // CHECK:STDOUT:   %pattern_type.7dcd0a.1: type = pattern_type %T [symbolic]
    45. 

  45. // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete]
    46. 

  46. // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
    47. 

  47. // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
    48. 

  48. // CHECK:STDOUT:   %Dest: type = bind_symbolic_name Dest, 0 [symbolic]
    49. 

  49. // CHECK:STDOUT:   %Convert.type.2751f3.1: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic]
    50. 

  50. // CHECK:STDOUT:   %Convert.42ebb8.1: %Convert.type.2751f3.1 = struct_value () [symbolic]
    51. 

  51. // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0d85.1: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%Dest) [symbolic]
    52. 

  52. // CHECK:STDOUT:   %ImplicitAs.type.d628ce.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
    53. 

  53. // CHECK:STDOUT:   %ImplicitAs.assoc_type.ca0d85.2: type = assoc_entity_type @ImplicitAs, @ImplicitAs(%T) [symbolic]
    54. 

  54. // CHECK:STDOUT:   %assoc0.9f5e6b.2: %ImplicitAs.assoc_type.ca0d85.2 = assoc_entity element0, imports.%Core.import_ref.1c7 [symbolic]
    55. 

  55. // CHECK:STDOUT:   %assoc0.dc0: %ImplicitAs.assoc_type.ca0d85.1 = assoc_entity element0, imports.%Core.import_ref.207 [symbolic]
    56. 

  56. // CHECK:STDOUT: }
    57. 

  57. // CHECK:STDOUT:
    58. 

  58. // CHECK:STDOUT: imports {
    59. 

  59. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    60. 

  60. // CHECK:STDOUT:     .Int = %Core.Int
    61. 

  61. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    62. 

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

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

  64. // CHECK:STDOUT:   }
    65. 

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

  66. // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
    67. 

  67. // CHECK:STDOUT:   %Core.import_ref.492: @ImplicitAs.%ImplicitAs.assoc_type (%ImplicitAs.assoc_type.ca0d85.1) = import_ref Core//prelude/operators/as, loc13_35, loaded [symbolic = @ImplicitAs.%assoc0 (constants.%assoc0.dc0)]
    68. 

  68. // CHECK:STDOUT:   %Core.import_ref.1c7: @ImplicitAs.%Convert.type (%Convert.type.2751f3.1) = import_ref Core//prelude/operators/as, loc13_35, loaded [symbolic = @ImplicitAs.%Convert (constants.%Convert.42ebb8.1)]
    69. 

  69. // CHECK:STDOUT:   %Core.import_ref.207 = import_ref Core//prelude/operators/as, loc13_35, unloaded
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

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

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

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

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

  76. // CHECK:STDOUT:   }
    77. 

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

  78. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
    79. 

  79. // CHECK:STDOUT:     %a.patt: %pattern_type.7ce = binding_pattern a [concrete]
    80. 

  80. // CHECK:STDOUT:     %a.param_patt: %pattern_type.7ce = value_param_pattern %a.patt, call_param0 [concrete]
    81. 

  81. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    82. 

  82. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param1 [concrete]
    83. 

  83. // CHECK:STDOUT:   } {
    84. 

  84. // CHECK:STDOUT:     %int_32.loc12_17: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    85. 

  85. // CHECK:STDOUT:     %i32.loc12_17: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    86. 

  86. // CHECK:STDOUT:     %a.param: %i32 = value_param call_param0
    87. 

  87. // CHECK:STDOUT:     %.loc12: type = splice_block %i32.loc12_9 [concrete = constants.%i32] {
    88. 

  88. // CHECK:STDOUT:       %int_32.loc12_9: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    89. 

  89. // CHECK:STDOUT:       %i32.loc12_9: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    90. 

  90. // CHECK:STDOUT:     }
    91. 

  91. // CHECK:STDOUT:     %a: %i32 = bind_name a, %a.param
    92. 

  92. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
    93. 

  93. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    94. 

  94. // CHECK:STDOUT:   }
    95. 

  95. // CHECK:STDOUT: }
    96. 

  96. // CHECK:STDOUT:
    97. 

  97. // CHECK:STDOUT: fn @F(%a.param: %i32) -> %i32 {
    98. 

  98. // CHECK:STDOUT: !entry:
    99. 

  99. // CHECK:STDOUT:   name_binding_decl {
    100. 

  100. // CHECK:STDOUT:     %T.patt: %pattern_type.98f = symbolic_binding_pattern T, 0 [concrete]
    101. 

  101. // CHECK:STDOUT:   }
    102. 

  102. // CHECK:STDOUT:   %int_32.loc13: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    103. 

  103. // CHECK:STDOUT:   %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    104. 

  104. // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0, %i32.loc13 [symbolic = constants.%T]
    105. 

  105. // CHECK:STDOUT:   name_binding_decl {
    106. 

  106. // CHECK:STDOUT:     %x.patt: %pattern_type.7dcd0a.1 = binding_pattern x [concrete]
    107. 

  107. // CHECK:STDOUT:   }
    108. 

  108. // CHECK:STDOUT:   %int_5: Core.IntLiteral = int_value 5 [concrete = constants.%int_5]
    109. 

  109. // CHECK:STDOUT:   %T.ref: type = name_ref T, %T [symbolic = constants.%T]
    110. 

  110. // CHECK:STDOUT:   %ImplicitAs.type: type = facet_type <@ImplicitAs, @ImplicitAs(constants.%T)> [symbolic = constants.%ImplicitAs.type.d628ce.2]
    111. 

  111. // CHECK:STDOUT:   %.loc21_14.1: %ImplicitAs.assoc_type.ca0d85.2 = specific_constant imports.%Core.import_ref.492, @ImplicitAs(constants.%T) [symbolic = constants.%assoc0.9f5e6b.2]
    112. 

  112. // CHECK:STDOUT:   %Convert.ref: %ImplicitAs.assoc_type.ca0d85.2 = name_ref Convert, %.loc21_14.1 [symbolic = constants.%assoc0.9f5e6b.2]
    113. 

  113. // CHECK:STDOUT:   %.loc21_14.2: %T = converted %int_5, <error> [concrete = <error>]
    114. 

  114. // CHECK:STDOUT:   %x: %T = bind_name x, <error>
    115. 

  115. // CHECK:STDOUT:   %x.ref: %T = name_ref x, %x
    116. 

  116. // CHECK:STDOUT:   %.loc29: %i32 = converted %x.ref, <error> [concrete = <error>]
    117. 

  117. // CHECK:STDOUT:   return <error>
    118. 

  118. // CHECK:STDOUT: }
    119. 

  119. // CHECK:STDOUT:
    120.