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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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function
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declaration
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fail_redecl.carbon

fail_redecl.carbon 7.6 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. // TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
    6. 

  6. // EXTRA-ARGS: --no-prelude-import --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/function/declaration/fail_redecl.carbon
    11. 

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

  12. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/declaration/fail_redecl.carbon
    13. 

  13. 

  14. fn A();
    15. 

  15. // CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn A` is redundant [RedeclRedundant]
    16. 

  16. // CHECK:STDERR: fn A();
    17. 

  17. // CHECK:STDERR: ^~~~~~~
    18. 

  18. // CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
    19. 

  19. // CHECK:STDERR: fn A();
    20. 

  20. // CHECK:STDERR: ^~~~~~~
    21. 

  21. // CHECK:STDERR:
    22. 

  22. fn A();
    23. 

  23. 

  24. fn B(x: ());
    25. 

  25. // CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn B` is redundant [RedeclRedundant]
    26. 

  26. // CHECK:STDERR: fn B(x: ());
    27. 

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

  28. // CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
    29. 

  29. // CHECK:STDERR: fn B(x: ());
    30. 

  30. // CHECK:STDERR: ^~~~~~~~~~~~
    31. 

  31. // CHECK:STDERR:
    32. 

  32. fn B(x: ());
    33. 

  33. 

  34. fn C();
    35. 

  35. // CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration differs because of parameter count of 1 [RedeclParamCountDiffers]
    36. 

  36. // CHECK:STDERR: fn C(x: ());
    37. 

  37. // CHECK:STDERR: ^~~~~~~~~~~~
    38. 

  38. // CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared with parameter count of 0 [RedeclParamCountPrevious]
    39. 

  39. // CHECK:STDERR: fn C();
    40. 

  40. // CHECK:STDERR: ^~~~~~~
    41. 

  41. // CHECK:STDERR:
    42. 

  42. fn C(x: ());
    43. 

  43. 

  44. fn D() {}
    45. 

  45. // CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redeclaration of `fn D` is redundant [RedeclRedundant]
    46. 

  46. // CHECK:STDERR: fn D();
    47. 

  47. // CHECK:STDERR: ^~~~~~~
    48. 

  48. // CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously declared here [RedeclPrevDecl]
    49. 

  49. // CHECK:STDERR: fn D() {}
    50. 

  50. // CHECK:STDERR: ^~~~~~~~
    51. 

  51. // CHECK:STDERR:
    52. 

  52. fn D();
    53. 

  53. 

  54. fn E() {}
    55. 

  55. // CHECK:STDERR: fail_redecl.carbon:[[@LINE+7]]:1: error: redefinition of `fn E` [RedeclRedef]
    56. 

  56. // CHECK:STDERR: fn E() {}
    57. 

  57. // CHECK:STDERR: ^~~~~~~~
    58. 

  58. // CHECK:STDERR: fail_redecl.carbon:[[@LINE-4]]:1: note: previously defined here [RedeclPrevDef]
    59. 

  59. // CHECK:STDERR: fn E() {}
    60. 

  60. // CHECK:STDERR: ^~~~~~~~
    61. 

  61. // CHECK:STDERR:
    62. 

  62. fn E() {}
    63. 

  63. 

  64. // CHECK:STDOUT: --- fail_redecl.carbon
    65. 

  65. // CHECK:STDOUT:
    66. 

  66. // CHECK:STDOUT: constants {
    67. 

  67. // CHECK:STDOUT:   %A.type: type = fn_type @A [concrete]
    68. 

  68. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    69. 

  69. // CHECK:STDOUT:   %A: %A.type = struct_value () [concrete]
    70. 

  70. // CHECK:STDOUT:   %pattern_type: type = pattern_type %empty_tuple.type [concrete]
    71. 

  71. // CHECK:STDOUT:   %B.type: type = fn_type @B [concrete]
    72. 

  72. // CHECK:STDOUT:   %B: %B.type = struct_value () [concrete]
    73. 

  73. // CHECK:STDOUT:   %C.type.de0bfe.1: type = fn_type @C.1 [concrete]
    74. 

  74. // CHECK:STDOUT:   %C.1b0370.1: %C.type.de0bfe.1 = struct_value () [concrete]
    75. 

  75. // CHECK:STDOUT:   %C.type.de0bfe.2: type = fn_type @C.2 [concrete]
    76. 

  76. // CHECK:STDOUT:   %C.1b0370.2: %C.type.de0bfe.2 = struct_value () [concrete]
    77. 

  77. // CHECK:STDOUT:   %D.type: type = fn_type @D [concrete]
    78. 

  78. // CHECK:STDOUT:   %D: %D.type = struct_value () [concrete]
    79. 

  79. // CHECK:STDOUT:   %E.type.851869.1: type = fn_type @E.1 [concrete]
    80. 

  80. // CHECK:STDOUT:   %E.237d29.1: %E.type.851869.1 = struct_value () [concrete]
    81. 

  81. // CHECK:STDOUT:   %E.type.851869.2: type = fn_type @E.2 [concrete]
    82. 

  82. // CHECK:STDOUT:   %E.237d29.2: %E.type.851869.2 = struct_value () [concrete]
    83. 

  83. // CHECK:STDOUT: }
    84. 

  84. // CHECK:STDOUT:
    85. 

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

  86. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    87. 

  87. // CHECK:STDOUT:     .A = %A.decl.loc14
    88. 

  88. // CHECK:STDOUT:     .B = %B.decl.loc24
    89. 

  89. // CHECK:STDOUT:     .C = %C.decl.loc34
    90. 

  90. // CHECK:STDOUT:     .D = %D.decl.loc44
    91. 

  91. // CHECK:STDOUT:     .E = %E.decl.loc54
    92. 

  92. // CHECK:STDOUT:   }
    93. 

  93. // CHECK:STDOUT:   %A.decl.loc14: %A.type = fn_decl @A [concrete = constants.%A] {} {}
    94. 

  94. // CHECK:STDOUT:   %A.decl.loc22: %A.type = fn_decl @A [concrete = constants.%A] {} {}
    95. 

  95. // CHECK:STDOUT:   %B.decl.loc24: %B.type = fn_decl @B [concrete = constants.%B] {
    96. 

  96. // CHECK:STDOUT:     %x.patt: %pattern_type = binding_pattern x [concrete]
    97. 

  97. // CHECK:STDOUT:     %x.param_patt: %pattern_type = value_param_pattern %x.patt, call_param0 [concrete]
    98. 

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

  99. // CHECK:STDOUT:     %x.param.loc24: %empty_tuple.type = value_param call_param0
    100. 

  100. // CHECK:STDOUT:     %.loc24_10.1: type = splice_block %.loc24_10.3 [concrete = constants.%empty_tuple.type] {
    101. 

  101. // CHECK:STDOUT:       %.loc24_10.2: %empty_tuple.type = tuple_literal ()
    102. 

  102. // CHECK:STDOUT:       %.loc24_10.3: type = converted %.loc24_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
    103. 

  103. // CHECK:STDOUT:     }
    104. 

  104. // CHECK:STDOUT:     %x.loc24: %empty_tuple.type = bind_name x, %x.param.loc24
    105. 

  105. // CHECK:STDOUT:   }
    106. 

  106. // CHECK:STDOUT:   %B.decl.loc32: %B.type = fn_decl @B [concrete = constants.%B] {
    107. 

  107. // CHECK:STDOUT:     %x.patt: %pattern_type = binding_pattern x [concrete]
    108. 

  108. // CHECK:STDOUT:     %x.param_patt: %pattern_type = value_param_pattern %x.patt, call_param0 [concrete]
    109. 

  109. // CHECK:STDOUT:   } {
    110. 

  110. // CHECK:STDOUT:     %x.param.loc32: %empty_tuple.type = value_param call_param0
    111. 

  111. // CHECK:STDOUT:     %.loc32_10.1: type = splice_block %.loc32_10.3 [concrete = constants.%empty_tuple.type] {
    112. 

  112. // CHECK:STDOUT:       %.loc32_10.2: %empty_tuple.type = tuple_literal ()
    113. 

  113. // CHECK:STDOUT:       %.loc32_10.3: type = converted %.loc32_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
    114. 

  114. // CHECK:STDOUT:     }
    115. 

  115. // CHECK:STDOUT:     %x.loc32: %empty_tuple.type = bind_name x, %x.param.loc32
    116. 

  116. // CHECK:STDOUT:   }
    117. 

  117. // CHECK:STDOUT:   %C.decl.loc34: %C.type.de0bfe.1 = fn_decl @C.1 [concrete = constants.%C.1b0370.1] {} {}
    118. 

  118. // CHECK:STDOUT:   %C.decl.loc42: %C.type.de0bfe.2 = fn_decl @C.2 [concrete = constants.%C.1b0370.2] {
    119. 

  119. // CHECK:STDOUT:     %x.patt: %pattern_type = binding_pattern x [concrete]
    120. 

  120. // CHECK:STDOUT:     %x.param_patt: %pattern_type = value_param_pattern %x.patt, call_param0 [concrete]
    121. 

  121. // CHECK:STDOUT:   } {
    122. 

  122. // CHECK:STDOUT:     %x.param: %empty_tuple.type = value_param call_param0
    123. 

  123. // CHECK:STDOUT:     %.loc42_10.1: type = splice_block %.loc42_10.3 [concrete = constants.%empty_tuple.type] {
    124. 

  124. // CHECK:STDOUT:       %.loc42_10.2: %empty_tuple.type = tuple_literal ()
    125. 

  125. // CHECK:STDOUT:       %.loc42_10.3: type = converted %.loc42_10.2, constants.%empty_tuple.type [concrete = constants.%empty_tuple.type]
    126. 

  126. // CHECK:STDOUT:     }
    127. 

  127. // CHECK:STDOUT:     %x: %empty_tuple.type = bind_name x, %x.param
    128. 

  128. // CHECK:STDOUT:   }
    129. 

  129. // CHECK:STDOUT:   %D.decl.loc44: %D.type = fn_decl @D [concrete = constants.%D] {} {}
    130. 

  130. // CHECK:STDOUT:   %D.decl.loc52: %D.type = fn_decl @D [concrete = constants.%D] {} {}
    131. 

  131. // CHECK:STDOUT:   %E.decl.loc54: %E.type.851869.1 = fn_decl @E.1 [concrete = constants.%E.237d29.1] {} {}
    132. 

  132. // CHECK:STDOUT:   %E.decl.loc62: %E.type.851869.2 = fn_decl @E.2 [concrete = constants.%E.237d29.2] {} {}
    133. 

  133. // CHECK:STDOUT: }
    134. 

  134. // CHECK:STDOUT:
    135. 

  135. // CHECK:STDOUT: fn @A();
    136. 

  136. // CHECK:STDOUT:
    137. 

  137. // CHECK:STDOUT: fn @B(%x.param.loc24: %empty_tuple.type);
    138. 

  138. // CHECK:STDOUT:
    139. 

  139. // CHECK:STDOUT: fn @C.1();
    140. 

  140. // CHECK:STDOUT:
    141. 

  141. // CHECK:STDOUT: fn @C.2(%x.param: %empty_tuple.type);
    142. 

  142. // CHECK:STDOUT:
    143. 

  143. // CHECK:STDOUT: fn @D() {
    144. 

  144. // CHECK:STDOUT: !entry:
    145. 

  145. // CHECK:STDOUT:   return
    146. 

  146. // CHECK:STDOUT: }
    147. 

  147. // CHECK:STDOUT:
    148. 

  148. // CHECK:STDOUT: fn @E.1() {
    149. 

  149. // CHECK:STDOUT: !entry:
    150. 

  150. // CHECK:STDOUT:   return
    151. 

  151. // CHECK:STDOUT: }
    152. 

  152. // CHECK:STDOUT:
    153. 

  153. // CHECK:STDOUT: fn @E.2() {
    154. 

  154. // CHECK:STDOUT: !entry:
    155. 

  155. // CHECK:STDOUT:   return
    156. 

  156. // CHECK:STDOUT: }
    157. 

  157. // CHECK:STDOUT:
    158.