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toolchain
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check
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interop
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cpp
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concept.carbon

concept.carbon 7.7 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/bool.carbon
    6. 

  6. // EXTRA-ARGS: --clang-arg=--std=c++20
    7. 

  7. //
    8. 

  8. // AUTOUPDATE
    9. 

  9. // TIP: To test this file alone, run:
    10. 

  10. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/interop/cpp/template/concept.carbon
    11. 

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

  12. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/interop/cpp/template/concept.carbon
    13. 

  13. 

  14. // --- concept.h
    15. 

  15. 

  16. struct Small {};
    17. 

  17. struct Large { int n; };
    18. 

  18. 

  19. template<typename T> concept IsLarge = sizeof(T) > 1;
    20. 

  20. 

  21. // --- use_concept.carbon
    22. 

  22. 

  23. library "[[@TEST_NAME]]";
    24. 

  24. 

  25. import Cpp library "concept.h";
    26. 

  26. 

  27. class X(B:! bool) {
    28. 

  28.   fn Make() -> Self { return {}; }
    29. 

  29. }
    30. 

  30. 

  31. //@dump-sem-ir-begin
    32. 

  32. var x1: X(Cpp.IsLarge(Cpp.Small)) = X(false).Make();
    33. 

  33. var x2: X(Cpp.IsLarge(Cpp.Large)) = X(true).Make();
    34. 

  34. //@dump-sem-ir-end
    35. 

  35. 

  36. // CHECK:STDOUT: --- use_concept.carbon
    37. 

  37. // CHECK:STDOUT:
    38. 

  38. // CHECK:STDOUT: constants {
    39. 

  39. // CHECK:STDOUT:   %X.type: type = generic_class_type @X [concrete]
    40. 

  40. // CHECK:STDOUT:   %X.generic: %X.type = struct_value () [concrete]
    41. 

  41. // CHECK:STDOUT:   %IsLarge.type: type = cpp_type_template_type IsLarge [concrete]
    42. 

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

  43. // CHECK:STDOUT:   %Small: type = class_type @Small [concrete]
    44. 

  44. // CHECK:STDOUT:   %false: bool = bool_literal false [concrete]
    45. 

  45. // CHECK:STDOUT:   %X.49c: type = class_type @X, @X(%false) [concrete]
    46. 

  46. // CHECK:STDOUT:   %X.Make.type.4e2: type = fn_type @X.Make, @X(%false) [concrete]
    47. 

  47. // CHECK:STDOUT:   %X.Make.ae0: %X.Make.type.4e2 = struct_value () [concrete]
    48. 

  48. // CHECK:STDOUT:   %pattern_type.607: type = pattern_type %X.49c [concrete]
    49. 

  49. // CHECK:STDOUT:   %X.Make.specific_fn.9a2: <specific function> = specific_function %X.Make.ae0, @X.Make(%false) [concrete]
    50. 

  50. // CHECK:STDOUT:   %Large: type = class_type @Large [concrete]
    51. 

  51. // CHECK:STDOUT:   %true: bool = bool_literal true [concrete]
    52. 

  52. // CHECK:STDOUT:   %X.07f: type = class_type @X, @X(%true) [concrete]
    53. 

  53. // CHECK:STDOUT:   %X.Make.type.7d1: type = fn_type @X.Make, @X(%true) [concrete]
    54. 

  54. // CHECK:STDOUT:   %X.Make.3ee: %X.Make.type.7d1 = struct_value () [concrete]
    55. 

  55. // CHECK:STDOUT:   %pattern_type.dd2: type = pattern_type %X.07f [concrete]
    56. 

  56. // CHECK:STDOUT:   %X.Make.specific_fn.5a7: <specific function> = specific_function %X.Make.3ee, @X.Make(%true) [concrete]
    57. 

  57. // CHECK:STDOUT: }
    58. 

  58. // CHECK:STDOUT:
    59. 

  59. // CHECK:STDOUT: imports {
    60. 

  60. // CHECK:STDOUT:   %Cpp: <namespace> = namespace file.%Cpp.import_cpp, [concrete] {
    61. 

  61. // CHECK:STDOUT:     .IsLarge = %IsLarge.template
    62. 

  62. // CHECK:STDOUT:     .Small = %Small.decl
    63. 

  63. // CHECK:STDOUT:     .Large = %Large.decl
    64. 

  64. // CHECK:STDOUT:     import Cpp//...
    65. 

  65. // CHECK:STDOUT:   }
    66. 

  66. // CHECK:STDOUT:   %IsLarge.template: %IsLarge.type = struct_value () [concrete = constants.%IsLarge.template]
    67. 

  67. // CHECK:STDOUT:   %Small.decl: type = class_decl @Small [concrete = constants.%Small] {} {}
    68. 

  68. // CHECK:STDOUT:   %Large.decl: type = class_decl @Large [concrete = constants.%Large] {} {}
    69. 

  69. // CHECK:STDOUT: }
    70. 

  70. // CHECK:STDOUT:
    71. 

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

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

  73. // CHECK:STDOUT:     %x1.patt: %pattern_type.607 = ref_binding_pattern x1 [concrete]
    74. 

  74. // CHECK:STDOUT:     %x1.var_patt: %pattern_type.607 = var_pattern %x1.patt [concrete]
    75. 

  75. // CHECK:STDOUT:   }
    76. 

  76. // CHECK:STDOUT:   %x1.var: ref %X.49c = var %x1.var_patt [concrete]
    77. 

  77. // CHECK:STDOUT:   %.loc11: type = splice_block %X.loc11 [concrete = constants.%X.49c] {
    78. 

  78. // CHECK:STDOUT:     %X.ref.loc11: %X.type = name_ref X, %X.decl [concrete = constants.%X.generic]
    79. 

  79. // CHECK:STDOUT:     %Cpp.ref.loc11_11: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    80. 

  80. // CHECK:STDOUT:     %IsLarge.ref.loc11: %IsLarge.type = name_ref IsLarge, imports.%IsLarge.template [concrete = constants.%IsLarge.template]
    81. 

  81. // CHECK:STDOUT:     %Cpp.ref.loc11_23: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    82. 

  82. // CHECK:STDOUT:     %Small.ref: type = name_ref Small, imports.%Small.decl [concrete = constants.%Small]
    83. 

  83. // CHECK:STDOUT:     %false: bool = bool_literal false [concrete = constants.%false]
    84. 

  84. // CHECK:STDOUT:     %X.loc11: type = class_type @X, @X(constants.%false) [concrete = constants.%X.49c]
    85. 

  85. // CHECK:STDOUT:   }
    86. 

  86. // CHECK:STDOUT:   %x1: ref %X.49c = ref_binding x1, %x1.var [concrete = %x1.var]
    87. 

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

  88. // CHECK:STDOUT:     %x2.patt: %pattern_type.dd2 = ref_binding_pattern x2 [concrete]
    89. 

  89. // CHECK:STDOUT:     %x2.var_patt: %pattern_type.dd2 = var_pattern %x2.patt [concrete]
    90. 

  90. // CHECK:STDOUT:   }
    91. 

  91. // CHECK:STDOUT:   %x2.var: ref %X.07f = var %x2.var_patt [concrete]
    92. 

  92. // CHECK:STDOUT:   %.loc12: type = splice_block %X.loc12 [concrete = constants.%X.07f] {
    93. 

  93. // CHECK:STDOUT:     %X.ref.loc12: %X.type = name_ref X, %X.decl [concrete = constants.%X.generic]
    94. 

  94. // CHECK:STDOUT:     %Cpp.ref.loc12_11: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    95. 

  95. // CHECK:STDOUT:     %IsLarge.ref.loc12: %IsLarge.type = name_ref IsLarge, imports.%IsLarge.template [concrete = constants.%IsLarge.template]
    96. 

  96. // CHECK:STDOUT:     %Cpp.ref.loc12_23: <namespace> = name_ref Cpp, imports.%Cpp [concrete = imports.%Cpp]
    97. 

  97. // CHECK:STDOUT:     %Large.ref: type = name_ref Large, imports.%Large.decl [concrete = constants.%Large]
    98. 

  98. // CHECK:STDOUT:     %true: bool = bool_literal true [concrete = constants.%true]
    99. 

  99. // CHECK:STDOUT:     %X.loc12: type = class_type @X, @X(constants.%true) [concrete = constants.%X.07f]
    100. 

  100. // CHECK:STDOUT:   }
    101. 

  101. // CHECK:STDOUT:   %x2: ref %X.07f = ref_binding x2, %x2.var [concrete = %x2.var]
    102. 

  102. // CHECK:STDOUT: }
    103. 

  103. // CHECK:STDOUT:
    104. 

  104. // CHECK:STDOUT: fn @__global_init() {
    105. 

  105. // CHECK:STDOUT: !entry:
    106. 

  106. // CHECK:STDOUT:   %X.ref.loc11: %X.type = name_ref X, file.%X.decl [concrete = constants.%X.generic]
    107. 

  107. // CHECK:STDOUT:   %false: bool = bool_literal false [concrete = constants.%false]
    108. 

  108. // CHECK:STDOUT:   %X.loc11: type = class_type @X, @X(constants.%false) [concrete = constants.%X.49c]
    109. 

  109. // CHECK:STDOUT:   %.loc11_45: %X.Make.type.4e2 = specific_constant @X.%X.Make.decl, @X(constants.%false) [concrete = constants.%X.Make.ae0]
    110. 

  110. // CHECK:STDOUT:   %Make.ref.loc11: %X.Make.type.4e2 = name_ref Make, %.loc11_45 [concrete = constants.%X.Make.ae0]
    111. 

  111. // CHECK:STDOUT:   %X.Make.specific_fn.loc11: <specific function> = specific_function %Make.ref.loc11, @X.Make(constants.%false) [concrete = constants.%X.Make.specific_fn.9a2]
    112. 

  112. // CHECK:STDOUT:   %.loc11_1: ref %X.49c = splice_block file.%x1.var [concrete = file.%x1.var] {}
    113. 

  113. // CHECK:STDOUT:   %X.Make.call.loc11: init %X.49c = call %X.Make.specific_fn.loc11() to %.loc11_1
    114. 

  114. // CHECK:STDOUT:   assign file.%x1.var, %X.Make.call.loc11
    115. 

  115. // CHECK:STDOUT:   %X.ref.loc12: %X.type = name_ref X, file.%X.decl [concrete = constants.%X.generic]
    116. 

  116. // CHECK:STDOUT:   %true: bool = bool_literal true [concrete = constants.%true]
    117. 

  117. // CHECK:STDOUT:   %X.loc12: type = class_type @X, @X(constants.%true) [concrete = constants.%X.07f]
    118. 

  118. // CHECK:STDOUT:   %.loc12_44: %X.Make.type.7d1 = specific_constant @X.%X.Make.decl, @X(constants.%true) [concrete = constants.%X.Make.3ee]
    119. 

  119. // CHECK:STDOUT:   %Make.ref.loc12: %X.Make.type.7d1 = name_ref Make, %.loc12_44 [concrete = constants.%X.Make.3ee]
    120. 

  120. // CHECK:STDOUT:   %X.Make.specific_fn.loc12: <specific function> = specific_function %Make.ref.loc12, @X.Make(constants.%true) [concrete = constants.%X.Make.specific_fn.5a7]
    121. 

  121. // CHECK:STDOUT:   %.loc12_1: ref %X.07f = splice_block file.%x2.var [concrete = file.%x2.var] {}
    122. 

  122. // CHECK:STDOUT:   %X.Make.call.loc12: init %X.07f = call %X.Make.specific_fn.loc12() to %.loc12_1
    123. 

  123. // CHECK:STDOUT:   assign file.%x2.var, %X.Make.call.loc12
    124. 

  124. // CHECK:STDOUT:   <elided>
    125. 

  125. // CHECK:STDOUT: }
    126. 

  126. // CHECK:STDOUT:
    127.