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alias.carbon

alias.carbon 8.9 KB
Cronologia Originale

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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. // TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
    6. 

  6. // EXTRA-ARGS: --dump-sem-ir-ranges=if-present
    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/namespace/alias.carbon
    11. 

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

  12. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/namespace/alias.carbon
    13. 

  13. 

  14. namespace NS;
    15. 

  15. 

  16. alias ns = NS;
    17. 

  17. 

  18. fn NS.A() -> i32 { return 0; }
    19. 

  19. 

  20. fn B() -> i32 { return ns.A(); }
    21. 

  21. 

  22. alias C = NS.A;
    23. 

  23. 

  24. fn D() -> i32 { return C(); }
    25. 

  25. 

  26. // CHECK:STDOUT: --- alias.carbon
    27. 

  27. // CHECK:STDOUT:
    28. 

  28. // CHECK:STDOUT: constants {
    29. 

  29. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    30. 

  30. // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
    31. 

  31. // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
    32. 

  32. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    33. 

  33. // CHECK:STDOUT:   %pattern_type.7ce: type = pattern_type %i32 [concrete]
    34. 

  34. // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
    35. 

  35. // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
    36. 

  36. // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [concrete]
    37. 

  37. // CHECK:STDOUT:   %ImplicitAs.type.cc7: type = generic_interface_type @ImplicitAs [concrete]
    38. 

  38. // CHECK:STDOUT:   %ImplicitAs.generic: %ImplicitAs.type.cc7 = struct_value () [concrete]
    39. 

  39. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
    40. 

  40. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
    41. 

  41. // CHECK:STDOUT:   %To.c80: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
    42. 

  42. // CHECK:STDOUT:   %Convert.type.0f9: type = fn_type @Convert.2, @impl.4f9(%To.c80) [symbolic]
    43. 

  43. // CHECK:STDOUT:   %Convert.f06: %Convert.type.0f9 = struct_value () [symbolic]
    44. 

  44. // CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @impl.4f9(%int_32) [concrete]
    45. 

  45. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @impl.4f9(%int_32) [concrete]
    46. 

  46. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [concrete]
    47. 

  47. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
    48. 

  48. // CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
    49. 

  49. // CHECK:STDOUT:   %Convert.bound: <bound method> = bound_method %int_0.5c6, %Convert.956 [concrete]
    50. 

  50. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
    51. 

  51. // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_0.5c6, %Convert.specific_fn [concrete]
    52. 

  52. // CHECK:STDOUT:   %int_0.6a9: %i32 = int_value 0 [concrete]
    53. 

  53. // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
    54. 

  54. // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
    55. 

  55. // CHECK:STDOUT:   %D.type: type = fn_type @D [concrete]
    56. 

  56. // CHECK:STDOUT:   %D: %D.type = struct_value () [concrete]
    57. 

  57. // CHECK:STDOUT: }
    58. 

  58. // CHECK:STDOUT:
    59. 

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

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

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

  62. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    63. 

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

  64. // CHECK:STDOUT:     import Core//prelude/...
    65. 

  65. // CHECK:STDOUT:   }
    66. 

  66. // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/types/int, Int, loaded [concrete = constants.%Int.generic]
    67. 

  67. // CHECK:STDOUT:   %Core.ImplicitAs: %ImplicitAs.type.cc7 = import_ref Core//prelude/operators/as, ImplicitAs, loaded [concrete = constants.%ImplicitAs.generic]
    68. 

  68. // CHECK:STDOUT:   %Core.import_ref.a5b: @impl.4f9.%Convert.type (%Convert.type.0f9) = import_ref Core//prelude/types/int, loc19_39, loaded [symbolic = @impl.4f9.%Convert (constants.%Convert.f06)]
    69. 

  69. // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @impl.4f9 [concrete]
    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:     .NS = %NS
    76. 

  76. // CHECK:STDOUT:     .ns = %ns
    77. 

  77. // CHECK:STDOUT:     .B = %B.decl
    78. 

  78. // CHECK:STDOUT:     .C = %C
    79. 

  79. // CHECK:STDOUT:     .D = %D.decl
    80. 

  80. // CHECK:STDOUT:   }
    81. 

  81. // CHECK:STDOUT:   %Core.import = import Core
    82. 

  82. // CHECK:STDOUT:   %NS: <namespace> = namespace [concrete] {
    83. 

  83. // CHECK:STDOUT:     .A = %A.decl
    84. 

  84. // CHECK:STDOUT:   }
    85. 

  85. // CHECK:STDOUT:   %NS.ref.loc16: <namespace> = name_ref NS, %NS [concrete = %NS]
    86. 

  86. // CHECK:STDOUT:   %ns: <namespace> = bind_alias ns, %NS [concrete = %NS]
    87. 

  87. // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [concrete = constants.%A] {
    88. 

  88. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    89. 

  89. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
    90. 

  90. // CHECK:STDOUT:   } {
    91. 

  91. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    92. 

  92. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    93. 

  93. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
    94. 

  94. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    95. 

  95. // CHECK:STDOUT:   }
    96. 

  96. // CHECK:STDOUT:   %B.decl: %B.type = fn_decl @B [concrete = constants.%B] {
    97. 

  97. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    98. 

  98. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
    99. 

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

  100. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    101. 

  101. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    102. 

  102. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
    103. 

  103. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    104. 

  104. // CHECK:STDOUT:   }
    105. 

  105. // CHECK:STDOUT:   %NS.ref.loc22: <namespace> = name_ref NS, %NS [concrete = %NS]
    106. 

  106. // CHECK:STDOUT:   %A.ref: %A.type = name_ref A, %A.decl [concrete = constants.%A]
    107. 

  107. // CHECK:STDOUT:   %C: %A.type = bind_alias C, %A.decl [concrete = constants.%A]
    108. 

  108. // CHECK:STDOUT:   %D.decl: %D.type = fn_decl @D [concrete = constants.%D] {
    109. 

  109. // CHECK:STDOUT:     %return.patt: %pattern_type.7ce = return_slot_pattern [concrete]
    110. 

  110. // CHECK:STDOUT:     %return.param_patt: %pattern_type.7ce = out_param_pattern %return.patt, call_param0 [concrete]
    111. 

  111. // CHECK:STDOUT:   } {
    112. 

  112. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    113. 

  113. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    114. 

  114. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
    115. 

  115. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    116. 

  116. // CHECK:STDOUT:   }
    117. 

  117. // CHECK:STDOUT: }
    118. 

  118. // CHECK:STDOUT:
    119. 

  119. // CHECK:STDOUT: fn @A() -> %i32 {
    120. 

  120. // CHECK:STDOUT: !entry:
    121. 

  121. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0.5c6]
    122. 

  122. // CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    123. 

  123. // CHECK:STDOUT:   %bound_method.loc18_28.1: <bound method> = bound_method %int_0, %impl.elem0 [concrete = constants.%Convert.bound]
    124. 

  124. // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    125. 

  125. // CHECK:STDOUT:   %bound_method.loc18_28.2: <bound method> = bound_method %int_0, %specific_fn [concrete = constants.%bound_method]
    126. 

  126. // CHECK:STDOUT:   %int.convert_checked: init %i32 = call %bound_method.loc18_28.2(%int_0) [concrete = constants.%int_0.6a9]
    127. 

  127. // CHECK:STDOUT:   %.loc18_28.1: %i32 = value_of_initializer %int.convert_checked [concrete = constants.%int_0.6a9]
    128. 

  128. // CHECK:STDOUT:   %.loc18_28.2: %i32 = converted %int_0, %.loc18_28.1 [concrete = constants.%int_0.6a9]
    129. 

  129. // CHECK:STDOUT:   return %.loc18_28.2
    130. 

  130. // CHECK:STDOUT: }
    131. 

  131. // CHECK:STDOUT:
    132. 

  132. // CHECK:STDOUT: fn @B() -> %i32 {
    133. 

  133. // CHECK:STDOUT: !entry:
    134. 

  134. // CHECK:STDOUT:   %ns.ref: <namespace> = name_ref ns, file.%ns [concrete = file.%NS]
    135. 

  135. // CHECK:STDOUT:   %A.ref: %A.type = name_ref A, file.%A.decl [concrete = constants.%A]
    136. 

  136. // CHECK:STDOUT:   %A.call: init %i32 = call %A.ref()
    137. 

  137. // CHECK:STDOUT:   %.loc20_30.1: %i32 = value_of_initializer %A.call
    138. 

  138. // CHECK:STDOUT:   %.loc20_30.2: %i32 = converted %A.call, %.loc20_30.1
    139. 

  139. // CHECK:STDOUT:   return %.loc20_30.2
    140. 

  140. // CHECK:STDOUT: }
    141. 

  141. // CHECK:STDOUT:
    142. 

  142. // CHECK:STDOUT: fn @D() -> %i32 {
    143. 

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

  144. // CHECK:STDOUT:   %C.ref: %A.type = name_ref C, file.%C [concrete = constants.%A]
    145. 

  145. // CHECK:STDOUT:   %A.call: init %i32 = call %C.ref()
    146. 

  146. // CHECK:STDOUT:   %.loc24_27.1: %i32 = value_of_initializer %A.call
    147. 

  147. // CHECK:STDOUT:   %.loc24_27.2: %i32 = converted %A.call, %.loc24_27.1
    148. 

  148. // CHECK:STDOUT:   return %.loc24_27.2
    149. 

  149. // CHECK:STDOUT: }
    150. 

  150. // CHECK:STDOUT:
    151.