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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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interop
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cpp
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enum
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using.carbon

using.carbon 7.2 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/uint.carbon
    6. 

  6. //
    7. 

  7. // AUTOUPDATE
    8. 

  8. // TIP: To test this file alone, run:
    9. 

  9. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/enum/using.carbon
    10. 

  10. // TIP: To dump output, run:
    11. 

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/enum/using.carbon
    12. 

  12. 

  13. // --- enum.h
    14. 

  14. 

  15. 

  16. enum class Color {Red, Blue, Green};
    17. 

  17. 

  18. using enum Color;
    19. 

  19. 

  20. class Zoo {
    21. 

  21. public:
    22. 

  22.   enum class Animal { Cat, Dog, Horse };
    23. 

  23. };
    24. 

  24. 

  25. using enum Zoo::Animal;
    26. 

  26. 

  27. // --- import_enum.carbon
    28. 

  28. 

  29. library "[[@TEST_NAME]]";
    30. 

  30. 

  31. // CHECK:STDERR: import_enum.carbon:[[@LINE+10]]:10: in file included here [InCppInclude]
    32. 

  32. // CHECK:STDERR: ./enum.h:5:7: warning: using enum declaration is a C++20 extension [CppInteropParseWarning]
    33. 

  33. // CHECK:STDERR:     5 | using enum Color;
    34. 

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

  35. // CHECK:STDERR:
    36. 

  36. // CHECK:STDERR: import_enum.carbon:[[@LINE+5]]:10: in file included here [InCppInclude]
    37. 

  37. // CHECK:STDERR: ./enum.h:12:7: warning: using enum declaration is a C++20 extension [CppInteropParseWarning]
    38. 

  38. // CHECK:STDERR:    12 | using enum Zoo::Animal;
    39. 

  39. // CHECK:STDERR:       |       ^
    40. 

  40. // CHECK:STDERR:
    41. 

  41. import Cpp library "enum.h";
    42. 

  42. 

  43. //@dump-sem-ir-begin
    44. 

  44. fn F() {
    45. 

  45.   let unused col : Cpp.Color = Cpp.Color.Red;
    46. 

  46.   let unused colb : Cpp.Color = Cpp.Blue;
    47. 

  47.   let unused pet : Cpp.Zoo.Animal = Cpp.Zoo.Animal.Cat;
    48. 

  48.   let unused pet2 : Cpp.Zoo.Animal = Cpp.Dog;
    49. 

  49. }
    50. 

  50. //@dump-sem-ir-end
    51. 

  51. 

  52. // CHECK:STDOUT: --- import_enum.carbon
    53. 

  53. // CHECK:STDOUT:
    54. 

  54. // CHECK:STDOUT: constants {
    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:   %Color: type = class_type @Color [concrete]
    58. 

  58. // CHECK:STDOUT:   %pattern_type.839: type = pattern_type %Color [concrete]
    59. 

  59. // CHECK:STDOUT:   %int_0.40a: %Color = int_value 0 [concrete]
    60. 

  60. // CHECK:STDOUT:   %int_1.a8e: %Color = int_value 1 [concrete]
    61. 

  61. // CHECK:STDOUT:   %Zoo: type = class_type @Zoo [concrete]
    62. 

  62. // CHECK:STDOUT:   %Animal: type = class_type @Animal [concrete]
    63. 

  63. // CHECK:STDOUT:   %pattern_type.d9d: type = pattern_type %Animal [concrete]
    64. 

  64. // CHECK:STDOUT:   %int_0.83f: %Animal = int_value 0 [concrete]
    65. 

  65. // CHECK:STDOUT:   %int_1.afa: %Animal = int_value 1 [concrete]
    66. 

  66. // CHECK:STDOUT: }
    67. 

  67. // CHECK:STDOUT:
    68. 

  68. // CHECK:STDOUT: imports {
    69. 

  69. // CHECK:STDOUT:   %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
    70. 

  70. // CHECK:STDOUT:     .Color = %Color.decl
    71. 

  71. // CHECK:STDOUT:     .Blue = %int_1.a8e
    72. 

  72. // CHECK:STDOUT:     .Zoo = %Zoo.decl
    73. 

  73. // CHECK:STDOUT:     .Dog = %int_1.afa
    74. 

  74. // CHECK:STDOUT:     import Cpp//...
    75. 

  75. // CHECK:STDOUT:   }
    76. 

  76. // CHECK:STDOUT:   %Color.decl: type = class_decl @Color [concrete = constants.%Color] {} {}
    77. 

  77. // CHECK:STDOUT:   %int_0.40a: %Color = int_value 0 [concrete = constants.%int_0.40a]
    78. 

  78. // CHECK:STDOUT:   %int_1.a8e: %Color = int_value 1 [concrete = constants.%int_1.a8e]
    79. 

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

  80. // CHECK:STDOUT:   %Animal.decl: type = class_decl @Animal [concrete = constants.%Animal] {} {}
    81. 

  81. // CHECK:STDOUT:   %int_0.83f: %Animal = int_value 0 [concrete = constants.%int_0.83f]
    82. 

  82. // CHECK:STDOUT:   %int_1.afa: %Animal = int_value 1 [concrete = constants.%int_1.afa]
    83. 

  83. // CHECK:STDOUT: }
    84. 

  84. // CHECK:STDOUT:
    85. 

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

  86. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {} {}
    87. 

  87. // CHECK:STDOUT: }
    88. 

  88. // CHECK:STDOUT:
    89. 

  89. // CHECK:STDOUT: fn @F() {
    90. 

  90. // CHECK:STDOUT: !entry:
    91. 

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

  92. // CHECK:STDOUT:     %col.patt: %pattern_type.839 = value_binding_pattern col [concrete]
    93. 

  93. // CHECK:STDOUT:   }
    94. 

  94. // CHECK:STDOUT:   %Cpp.ref.loc18_32: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    95. 

  95. // CHECK:STDOUT:   %Color.ref.loc18_35: type = name_ref Color, imports.%Color.decl [concrete = constants.%Color]
    96. 

  96. // CHECK:STDOUT:   %Red.ref: %Color = name_ref Red, imports.%int_0.40a [concrete = constants.%int_0.40a]
    97. 

  97. // CHECK:STDOUT:   %.loc18: type = splice_block %Color.ref.loc18_23 [concrete = constants.%Color] {
    98. 

  98. // CHECK:STDOUT:     %Cpp.ref.loc18_20: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    99. 

  99. // CHECK:STDOUT:     %Color.ref.loc18_23: type = name_ref Color, imports.%Color.decl [concrete = constants.%Color]
    100. 

  100. // CHECK:STDOUT:   }
    101. 

  101. // CHECK:STDOUT:   %col: %Color = value_binding col, %Red.ref
    102. 

  102. // CHECK:STDOUT:   name_binding_decl {
    103. 

  103. // CHECK:STDOUT:     %colb.patt: %pattern_type.839 = value_binding_pattern colb [concrete]
    104. 

  104. // CHECK:STDOUT:   }
    105. 

  105. // CHECK:STDOUT:   %Cpp.ref.loc19_33: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    106. 

  106. // CHECK:STDOUT:   %Blue.ref: %Color = name_ref Blue, imports.%int_1.a8e [concrete = constants.%int_1.a8e]
    107. 

  107. // CHECK:STDOUT:   %.loc19: type = splice_block %Color.ref.loc19 [concrete = constants.%Color] {
    108. 

  108. // CHECK:STDOUT:     %Cpp.ref.loc19_21: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    109. 

  109. // CHECK:STDOUT:     %Color.ref.loc19: type = name_ref Color, imports.%Color.decl [concrete = constants.%Color]
    110. 

  110. // CHECK:STDOUT:   }
    111. 

  111. // CHECK:STDOUT:   %colb: %Color = value_binding colb, %Blue.ref
    112. 

  112. // CHECK:STDOUT:   name_binding_decl {
    113. 

  113. // CHECK:STDOUT:     %pet.patt: %pattern_type.d9d = value_binding_pattern pet [concrete]
    114. 

  114. // CHECK:STDOUT:   }
    115. 

  115. // CHECK:STDOUT:   %Cpp.ref.loc20_37: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    116. 

  116. // CHECK:STDOUT:   %Zoo.ref.loc20_40: type = name_ref Zoo, imports.%Zoo.decl [concrete = constants.%Zoo]
    117. 

  117. // CHECK:STDOUT:   %Animal.ref.loc20_44: type = name_ref Animal, imports.%Animal.decl [concrete = constants.%Animal]
    118. 

  118. // CHECK:STDOUT:   %Cat.ref: %Animal = name_ref Cat, imports.%int_0.83f [concrete = constants.%int_0.83f]
    119. 

  119. // CHECK:STDOUT:   %.loc20: type = splice_block %Animal.ref.loc20_27 [concrete = constants.%Animal] {
    120. 

  120. // CHECK:STDOUT:     %Cpp.ref.loc20_20: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    121. 

  121. // CHECK:STDOUT:     %Zoo.ref.loc20_23: type = name_ref Zoo, imports.%Zoo.decl [concrete = constants.%Zoo]
    122. 

  122. // CHECK:STDOUT:     %Animal.ref.loc20_27: type = name_ref Animal, imports.%Animal.decl [concrete = constants.%Animal]
    123. 

  123. // CHECK:STDOUT:   }
    124. 

  124. // CHECK:STDOUT:   %pet: %Animal = value_binding pet, %Cat.ref
    125. 

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

  126. // CHECK:STDOUT:     %pet2.patt: %pattern_type.d9d = value_binding_pattern pet2 [concrete]
    127. 

  127. // CHECK:STDOUT:   }
    128. 

  128. // CHECK:STDOUT:   %Cpp.ref.loc21_38: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    129. 

  129. // CHECK:STDOUT:   %Dog.ref: %Animal = name_ref Dog, imports.%int_1.afa [concrete = constants.%int_1.afa]
    130. 

  130. // CHECK:STDOUT:   %.loc21: type = splice_block %Animal.ref.loc21 [concrete = constants.%Animal] {
    131. 

  131. // CHECK:STDOUT:     %Cpp.ref.loc21_21: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    132. 

  132. // CHECK:STDOUT:     %Zoo.ref.loc21: type = name_ref Zoo, imports.%Zoo.decl [concrete = constants.%Zoo]
    133. 

  133. // CHECK:STDOUT:     %Animal.ref.loc21: type = name_ref Animal, imports.%Animal.decl [concrete = constants.%Animal]
    134. 

  134. // CHECK:STDOUT:   }
    135. 

  135. // CHECK:STDOUT:   %pet2: %Animal = value_binding pet2, %Dog.ref
    136. 

  136. // CHECK:STDOUT:   return
    137. 

  137. // CHECK:STDOUT: }
    138. 

  138. // CHECK:STDOUT:
    139.