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carbon-lang
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index
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fail_negative_indexing.carbon

fail_negative_indexing.carbon 11 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/index/fail_negative_indexing.carbon
    8. 

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

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

  10. 

  11. var c: [i32; 2] = (42, 42);
    12. 

  12. // CHECK:STDERR: fail_negative_indexing.carbon:[[@LINE+4]]:16: error: array index `-10` is past the end of type `[i32; 2]` [ArrayIndexOutOfBounds]
    13. 

  13. // CHECK:STDERR: var d: i32 = c[-10];
    14. 

  14. // CHECK:STDERR:                ^~~
    15. 

  15. // CHECK:STDERR:
    16. 

  16. var d: i32 = c[-10];
    17. 

  17. 

  18. 

  19. // CHECK:STDOUT: --- fail_negative_indexing.carbon
    20. 

  20. // CHECK:STDOUT:
    21. 

  21. // CHECK:STDOUT: constants {
    22. 

  22. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    23. 

  23. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    24. 

  24. // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [template]
    25. 

  25. // CHECK:STDOUT:   %array_type: type = array_type %int_2, %i32 [template]
    26. 

  26. // CHECK:STDOUT:   %int_42.20e: Core.IntLiteral = int_value 42 [template]
    27. 

  27. // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [template]
    28. 

  28. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template]
    29. 

  29. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
    30. 

  30. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    31. 

  31. // CHECK:STDOUT:   %Negate.type: type = facet_type <@Negate> [template]
    32. 

  32. // CHECK:STDOUT:   %impl_witness.d39: <witness> = impl_witness (imports.%Core.import_ref.a5b), @impl.1(%int_32) [template]
    33. 

  33. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @impl.1(%int_32) [template]
    34. 

  34. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [template]
    35. 

  35. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, %impl_witness.d39 [template]
    36. 

  36. // CHECK:STDOUT:   %.a0b: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [template]
    37. 

  37. // CHECK:STDOUT:   %Convert.bound.132: <bound method> = bound_method %int_42.20e, %Convert.956 [template]
    38. 

  38. // CHECK:STDOUT:   %Convert.specific_fn.2f6: <specific function> = specific_function %Convert.bound.132, @Convert.2(%int_32) [template]
    39. 

  39. // CHECK:STDOUT:   %int_42.c68: %i32 = int_value 42 [template]
    40. 

  40. // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [template]
    41. 

  41. // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_42.c68, %int_42.c68) [template]
    42. 

  42. // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [template]
    43. 

  43. // CHECK:STDOUT:   %impl_witness.0f6: <witness> = impl_witness (imports.%Core.import_ref.c15) [template]
    44. 

  44. // CHECK:STDOUT:   %Op.type.e42: type = fn_type @Op.13 [template]
    45. 

  45. // CHECK:STDOUT:   %Negate.facet: %Negate.type = facet_value Core.IntLiteral, %impl_witness.0f6 [template]
    46. 

  46. // CHECK:STDOUT:   %.45d: type = fn_type_with_self_type %Op.type.e42, %Negate.facet [template]
    47. 

  47. // CHECK:STDOUT:   %Op.type.1be: type = fn_type @Op.14 [template]
    48. 

  48. // CHECK:STDOUT:   %Op.bba: %Op.type.1be = struct_value () [template]
    49. 

  49. // CHECK:STDOUT:   %Op.bound: <bound method> = bound_method %int_10, %Op.bba [template]
    50. 

  50. // CHECK:STDOUT:   %int_-10.06d: Core.IntLiteral = int_value -10 [template]
    51. 

  51. // CHECK:STDOUT:   %Convert.bound.1ca: <bound method> = bound_method %int_-10.06d, %Convert.956 [template]
    52. 

  52. // CHECK:STDOUT:   %Convert.specific_fn.4be: <specific function> = specific_function %Convert.bound.1ca, @Convert.2(%int_32) [template]
    53. 

  53. // CHECK:STDOUT:   %int_-10.c17: %i32 = int_value -10 [template]
    54. 

  54. // CHECK:STDOUT: }
    55. 

  55. // CHECK:STDOUT:
    56. 

  56. // CHECK:STDOUT: imports {
    57. 

  57. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    58. 

  58. // CHECK:STDOUT:     .Int = %Core.Int
    59. 

  59. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    60. 

  60. // CHECK:STDOUT:     .Negate = %Core.Negate
    61. 

  61. // CHECK:STDOUT:     import Core//prelude
    62. 

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

  63. // CHECK:STDOUT:   }
    64. 

  64. // CHECK:STDOUT: }
    65. 

  65. // CHECK:STDOUT:
    66. 

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

  67. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    68. 

  68. // CHECK:STDOUT:     .Core = imports.%Core
    69. 

  69. // CHECK:STDOUT:     .c = %c
    70. 

  70. // CHECK:STDOUT:     .d = %d
    71. 

  71. // CHECK:STDOUT:   }
    72. 

  72. // CHECK:STDOUT:   %Core.import = import Core
    73. 

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

  74. // CHECK:STDOUT:     %c.patt: %array_type = binding_pattern c
    75. 

  75. // CHECK:STDOUT:     %.loc11_1: %array_type = var_pattern %c.patt
    76. 

  76. // CHECK:STDOUT:   }
    77. 

  77. // CHECK:STDOUT:   %c.var: ref %array_type = var c
    78. 

  78. // CHECK:STDOUT:   %.loc11_15: type = splice_block %array_type [template = constants.%array_type] {
    79. 

  79. // CHECK:STDOUT:     %int_32.loc11: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    80. 

  80. // CHECK:STDOUT:     %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    81. 

  81. // CHECK:STDOUT:     %int_2: Core.IntLiteral = int_value 2 [template = constants.%int_2]
    82. 

  82. // CHECK:STDOUT:     %array_type: type = array_type %int_2, %i32 [template = constants.%array_type]
    83. 

  83. // CHECK:STDOUT:   }
    84. 

  84. // CHECK:STDOUT:   %c: ref %array_type = bind_name c, %c.var
    85. 

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

  86. // CHECK:STDOUT:     %d.patt: %i32 = binding_pattern d
    87. 

  87. // CHECK:STDOUT:     %.loc16_1: %i32 = var_pattern %d.patt
    88. 

  88. // CHECK:STDOUT:   }
    89. 

  89. // CHECK:STDOUT:   %d.var: ref %i32 = var d
    90. 

  90. // CHECK:STDOUT:   %.loc16_8: type = splice_block %i32.loc16 [template = constants.%i32] {
    91. 

  91. // CHECK:STDOUT:     %int_32.loc16: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    92. 

  92. // CHECK:STDOUT:     %i32.loc16: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    93. 

  93. // CHECK:STDOUT:   }
    94. 

  94. // CHECK:STDOUT:   %d: ref %i32 = bind_name d, %d.var
    95. 

  95. // CHECK:STDOUT: }
    96. 

  96. // CHECK:STDOUT:
    97. 

  97. // CHECK:STDOUT: fn @__global_init() {
    98. 

  98. // CHECK:STDOUT: !entry:
    99. 

  99. // CHECK:STDOUT:   %int_42.loc11_20: Core.IntLiteral = int_value 42 [template = constants.%int_42.20e]
    100. 

  100. // CHECK:STDOUT:   %int_42.loc11_24: Core.IntLiteral = int_value 42 [template = constants.%int_42.20e]
    101. 

  101. // CHECK:STDOUT:   %.loc11_26.1: %tuple.type = tuple_literal (%int_42.loc11_20, %int_42.loc11_24)
    102. 

  102. // CHECK:STDOUT:   %impl.elem0.loc11_26.1: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    103. 

  103. // CHECK:STDOUT:   %bound_method.loc11_26.1: <bound method> = bound_method %int_42.loc11_20, %impl.elem0.loc11_26.1 [template = constants.%Convert.bound.132]
    104. 

  104. // CHECK:STDOUT:   %specific_fn.loc11_26.1: <specific function> = specific_function %bound_method.loc11_26.1, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.2f6]
    105. 

  105. // CHECK:STDOUT:   %int.convert_checked.loc11_26.1: init %i32 = call %specific_fn.loc11_26.1(%int_42.loc11_20) [template = constants.%int_42.c68]
    106. 

  106. // CHECK:STDOUT:   %.loc11_26.2: init %i32 = converted %int_42.loc11_20, %int.convert_checked.loc11_26.1 [template = constants.%int_42.c68]
    107. 

  107. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template = constants.%int_0]
    108. 

  108. // CHECK:STDOUT:   %.loc11_26.3: ref %i32 = array_index file.%c.var, %int_0
    109. 

  109. // CHECK:STDOUT:   %.loc11_26.4: init %i32 = initialize_from %.loc11_26.2 to %.loc11_26.3 [template = constants.%int_42.c68]
    110. 

  110. // CHECK:STDOUT:   %impl.elem0.loc11_26.2: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    111. 

  111. // CHECK:STDOUT:   %bound_method.loc11_26.2: <bound method> = bound_method %int_42.loc11_24, %impl.elem0.loc11_26.2 [template = constants.%Convert.bound.132]
    112. 

  112. // CHECK:STDOUT:   %specific_fn.loc11_26.2: <specific function> = specific_function %bound_method.loc11_26.2, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.2f6]
    113. 

  113. // CHECK:STDOUT:   %int.convert_checked.loc11_26.2: init %i32 = call %specific_fn.loc11_26.2(%int_42.loc11_24) [template = constants.%int_42.c68]
    114. 

  114. // CHECK:STDOUT:   %.loc11_26.5: init %i32 = converted %int_42.loc11_24, %int.convert_checked.loc11_26.2 [template = constants.%int_42.c68]
    115. 

  115. // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [template = constants.%int_1]
    116. 

  116. // CHECK:STDOUT:   %.loc11_26.6: ref %i32 = array_index file.%c.var, %int_1
    117. 

  117. // CHECK:STDOUT:   %.loc11_26.7: init %i32 = initialize_from %.loc11_26.5 to %.loc11_26.6 [template = constants.%int_42.c68]
    118. 

  118. // CHECK:STDOUT:   %.loc11_26.8: init %array_type = array_init (%.loc11_26.4, %.loc11_26.7) to file.%c.var [template = constants.%array]
    119. 

  119. // CHECK:STDOUT:   %.loc11_1: init %array_type = converted %.loc11_26.1, %.loc11_26.8 [template = constants.%array]
    120. 

  120. // CHECK:STDOUT:   assign file.%c.var, %.loc11_1
    121. 

  121. // CHECK:STDOUT:   %c.ref: ref %array_type = name_ref c, file.%c
    122. 

  122. // CHECK:STDOUT:   %int_10: Core.IntLiteral = int_value 10 [template = constants.%int_10]
    123. 

  123. // CHECK:STDOUT:   %impl.elem0.loc16_16.1: %.45d = impl_witness_access constants.%impl_witness.0f6, element0 [template = constants.%Op.bba]
    124. 

  124. // CHECK:STDOUT:   %bound_method.loc16_16.1: <bound method> = bound_method %int_10, %impl.elem0.loc16_16.1 [template = constants.%Op.bound]
    125. 

  125. // CHECK:STDOUT:   %int.snegate: init Core.IntLiteral = call %bound_method.loc16_16.1(%int_10) [template = constants.%int_-10.06d]
    126. 

  126. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    127. 

  127. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    128. 

  128. // CHECK:STDOUT:   %impl.elem0.loc16_16.2: %.a0b = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    129. 

  129. // CHECK:STDOUT:   %bound_method.loc16_16.2: <bound method> = bound_method %int.snegate, %impl.elem0.loc16_16.2 [template = constants.%Convert.bound.1ca]
    130. 

  130. // CHECK:STDOUT:   %specific_fn.loc16: <specific function> = specific_function %bound_method.loc16_16.2, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.4be]
    131. 

  131. // CHECK:STDOUT:   %.loc16_16.1: Core.IntLiteral = value_of_initializer %int.snegate [template = constants.%int_-10.06d]
    132. 

  132. // CHECK:STDOUT:   %.loc16_16.2: Core.IntLiteral = converted %int.snegate, %.loc16_16.1 [template = constants.%int_-10.06d]
    133. 

  133. // CHECK:STDOUT:   %int.convert_checked.loc16: init %i32 = call %specific_fn.loc16(%.loc16_16.2) [template = constants.%int_-10.c17]
    134. 

  134. // CHECK:STDOUT:   %.loc16_16.3: %i32 = value_of_initializer %int.convert_checked.loc16 [template = constants.%int_-10.c17]
    135. 

  135. // CHECK:STDOUT:   %.loc16_16.4: %i32 = converted %int.snegate, %.loc16_16.3 [template = constants.%int_-10.c17]
    136. 

  136. // CHECK:STDOUT:   %.loc16_19.1: ref %i32 = array_index %c.ref, %.loc16_16.4 [template = <error>]
    137. 

  137. // CHECK:STDOUT:   %.loc16_19.2: %i32 = bind_value %.loc16_19.1
    138. 

  138. // CHECK:STDOUT:   assign file.%d.var, %.loc16_19.2
    139. 

  139. // CHECK:STDOUT:   return
    140. 

  140. // CHECK:STDOUT: }
    141. 

  141. // CHECK:STDOUT:
    142.