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carbon-lang
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carbon-lang
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toolchain
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check
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alias.carbon

alias.carbon 7.5 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/namespace/alias.carbon
    8. 

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

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

  10. 

  11. namespace NS;
    12. 

  12. 

  13. alias ns = NS;
    14. 

  14. 

  15. fn NS.A() -> i32 { return 0; }
    16. 

  16. 

  17. fn B() -> i32 { return ns.A(); }
    18. 

  18. 

  19. alias C = NS.A;
    20. 

  20. 

  21. fn D() -> i32 { return C(); }
    22. 

  22. 

  23. // CHECK:STDOUT: --- alias.carbon
    24. 

  24. // CHECK:STDOUT:
    25. 

  25. // CHECK:STDOUT: constants {
    26. 

  26. // CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 32 [template]
    27. 

  27. // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
    28. 

  28. // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
    29. 

  29. // CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
    30. 

  30. // CHECK:STDOUT:   %A.type: type = fn_type @A [template]
    31. 

  31. // CHECK:STDOUT:   %A: %A.type = struct_value () [template]
    32. 

  32. // CHECK:STDOUT:   %.2: Core.IntLiteral = int_value 0 [template]
    33. 

  33. // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    34. 

  34. // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
    35. 

  35. // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
    36. 

  36. // CHECK:STDOUT:   %.22: <witness> = interface_witness (%Convert.14) [template]
    37. 

  37. // CHECK:STDOUT:   %.23: <bound method> = bound_method %.2, %Convert.14 [template]
    38. 

  38. // CHECK:STDOUT:   %.24: <specific function> = specific_function %.23, @Convert.2(%.1) [template]
    39. 

  39. // CHECK:STDOUT:   %.25: %i32 = int_value 0 [template]
    40. 

  40. // CHECK:STDOUT:   %B.type: type = fn_type @B [template]
    41. 

  41. // CHECK:STDOUT:   %B: %B.type = struct_value () [template]
    42. 

  42. // CHECK:STDOUT:   %D.type: type = fn_type @D [template]
    43. 

  43. // CHECK:STDOUT:   %D: %D.type = struct_value () [template]
    44. 

  44. // CHECK:STDOUT: }
    45. 

  45. // CHECK:STDOUT:
    46. 

  46. // CHECK:STDOUT: imports {
    47. 

  47. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    48. 

  48. // CHECK:STDOUT:     .Int = %import_ref.1
    49. 

  49. // CHECK:STDOUT:     .ImplicitAs = %import_ref.2
    50. 

  50. // CHECK:STDOUT:     import Core//prelude
    51. 

  51. // CHECK:STDOUT:     import Core//prelude/...
    52. 

  52. // CHECK:STDOUT:   }
    53. 

  53. // CHECK:STDOUT: }
    54. 

  54. // CHECK:STDOUT:
    55. 

  55. // CHECK:STDOUT: file {
    56. 

  56. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    57. 

  57. // CHECK:STDOUT:     .Core = imports.%Core
    58. 

  58. // CHECK:STDOUT:     .NS = %NS
    59. 

  59. // CHECK:STDOUT:     .ns = %ns
    60. 

  60. // CHECK:STDOUT:     .B = %B.decl
    61. 

  61. // CHECK:STDOUT:     .C = %C
    62. 

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

  63. // CHECK:STDOUT:   }
    64. 

  64. // CHECK:STDOUT:   %Core.import = import Core
    65. 

  65. // CHECK:STDOUT:   %NS: <namespace> = namespace [template] {
    66. 

  66. // CHECK:STDOUT:     .A = %A.decl
    67. 

  67. // CHECK:STDOUT:   }
    68. 

  68. // CHECK:STDOUT:   %NS.ref.loc13: <namespace> = name_ref NS, %NS [template = %NS]
    69. 

  69. // CHECK:STDOUT:   %ns: <namespace> = bind_alias ns, %NS [template = %NS]
    70. 

  70. // CHECK:STDOUT:   %A.decl: %A.type = fn_decl @A [template = constants.%A] {
    71. 

  71. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    72. 

  72. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    73. 

  73. // CHECK:STDOUT:   } {
    74. 

  74. // CHECK:STDOUT:     %.loc15_14.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
    75. 

  75. // CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc15_14.1) [template = constants.%i32]
    76. 

  76. // CHECK:STDOUT:     %.loc15_14.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
    77. 

  77. // CHECK:STDOUT:     %.loc15_14.3: type = converted %int.make_type_signed, %.loc15_14.2 [template = constants.%i32]
    78. 

  78. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param0
    79. 

  79. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    80. 

  80. // CHECK:STDOUT:   }
    81. 

  81. // CHECK:STDOUT:   %B.decl: %B.type = fn_decl @B [template = constants.%B] {
    82. 

  82. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    83. 

  83. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    84. 

  84. // CHECK:STDOUT:   } {
    85. 

  85. // CHECK:STDOUT:     %.loc17_11.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
    86. 

  86. // CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc17_11.1) [template = constants.%i32]
    87. 

  87. // CHECK:STDOUT:     %.loc17_11.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
    88. 

  88. // CHECK:STDOUT:     %.loc17_11.3: type = converted %int.make_type_signed, %.loc17_11.2 [template = constants.%i32]
    89. 

  89. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param0
    90. 

  90. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    91. 

  91. // CHECK:STDOUT:   }
    92. 

  92. // CHECK:STDOUT:   %NS.ref.loc19: <namespace> = name_ref NS, %NS [template = %NS]
    93. 

  93. // CHECK:STDOUT:   %A.ref: %A.type = name_ref A, %A.decl [template = constants.%A]
    94. 

  94. // CHECK:STDOUT:   %C: %A.type = bind_alias C, %A.decl [template = constants.%A]
    95. 

  95. // CHECK:STDOUT:   %D.decl: %D.type = fn_decl @D [template = constants.%D] {
    96. 

  96. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    97. 

  97. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    98. 

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

  99. // CHECK:STDOUT:     %.loc21_11.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
    100. 

  100. // CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc21_11.1) [template = constants.%i32]
    101. 

  101. // CHECK:STDOUT:     %.loc21_11.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
    102. 

  102. // CHECK:STDOUT:     %.loc21_11.3: type = converted %int.make_type_signed, %.loc21_11.2 [template = constants.%i32]
    103. 

  103. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param0
    104. 

  104. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    105. 

  105. // CHECK:STDOUT:   }
    106. 

  106. // CHECK:STDOUT: }
    107. 

  107. // CHECK:STDOUT:
    108. 

  108. // CHECK:STDOUT: fn @A() -> %i32 {
    109. 

  109. // CHECK:STDOUT: !entry:
    110. 

  110. // CHECK:STDOUT:   %.loc15_27: Core.IntLiteral = int_value 0 [template = constants.%.2]
    111. 

  111. // CHECK:STDOUT:   %.loc15_28.1: %Convert.type.2 = interface_witness_access constants.%.22, element0 [template = constants.%Convert.14]
    112. 

  112. // CHECK:STDOUT:   %.loc15_28.2: <bound method> = bound_method %.loc15_27, %.loc15_28.1 [template = constants.%.23]
    113. 

  113. // CHECK:STDOUT:   %.loc15_28.3: <specific function> = specific_function %.loc15_28.2, @Convert.2(constants.%.1) [template = constants.%.24]
    114. 

  114. // CHECK:STDOUT:   %int.convert_checked: init %i32 = call %.loc15_28.3(%.loc15_27) [template = constants.%.25]
    115. 

  115. // CHECK:STDOUT:   %.loc15_28.4: %i32 = value_of_initializer %int.convert_checked [template = constants.%.25]
    116. 

  116. // CHECK:STDOUT:   %.loc15_28.5: %i32 = converted %.loc15_27, %.loc15_28.4 [template = constants.%.25]
    117. 

  117. // CHECK:STDOUT:   return %.loc15_28.5
    118. 

  118. // CHECK:STDOUT: }
    119. 

  119. // CHECK:STDOUT:
    120. 

  120. // CHECK:STDOUT: fn @B() -> %i32 {
    121. 

  121. // CHECK:STDOUT: !entry:
    122. 

  122. // CHECK:STDOUT:   %ns.ref: <namespace> = name_ref ns, file.%ns [template = file.%NS]
    123. 

  123. // CHECK:STDOUT:   %A.ref: %A.type = name_ref A, file.%A.decl [template = constants.%A]
    124. 

  124. // CHECK:STDOUT:   %A.call: init %i32 = call %A.ref()
    125. 

  125. // CHECK:STDOUT:   %.loc17_30.1: %i32 = value_of_initializer %A.call
    126. 

  126. // CHECK:STDOUT:   %.loc17_30.2: %i32 = converted %A.call, %.loc17_30.1
    127. 

  127. // CHECK:STDOUT:   return %.loc17_30.2
    128. 

  128. // CHECK:STDOUT: }
    129. 

  129. // CHECK:STDOUT:
    130. 

  130. // CHECK:STDOUT: fn @D() -> %i32 {
    131. 

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

  132. // CHECK:STDOUT:   %C.ref: %A.type = name_ref C, file.%C [template = constants.%A]
    133. 

  133. // CHECK:STDOUT:   %A.call: init %i32 = call %C.ref()
    134. 

  134. // CHECK:STDOUT:   %.loc21_27.1: %i32 = value_of_initializer %A.call
    135. 

  135. // CHECK:STDOUT:   %.loc21_27.2: %i32 = converted %A.call, %.loc21_27.1
    136. 

  136. // CHECK:STDOUT:   return %.loc21_27.2
    137. 

  137. // CHECK:STDOUT: }
    138. 

  138. // CHECK:STDOUT:
    139.