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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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index
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fail_expr_category.carbon

fail_expr_category.carbon 14 KB
文件歷史 原始文件

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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_expr_category.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_expr_category.carbon
    10. 

  10. 

  11. fn F() -> [i32; 3];
    12. 

  12. 

  13. fn G(b: [i32; 3]) {
    14. 

  14.   // Indexing an array value gives a value.
    15. 

  15.   // CHECK:STDERR: fail_expr_category.carbon:[[@LINE+4]]:18: error: cannot take the address of non-reference expression [AddrOfNonRef]
    16. 

  16.   // CHECK:STDERR:   var pb: i32* = &b[0];
    17. 

  17.   // CHECK:STDERR:                  ^
    18. 

  18.   // CHECK:STDERR:
    19. 

  19.   var pb: i32* = &b[0];
    20. 

  20.   // CHECK:STDERR: fail_expr_category.carbon:[[@LINE+4]]:3: error: expression is not assignable [AssignmentToNonAssignable]
    21. 

  21.   // CHECK:STDERR:   b[0] = 4;
    22. 

  22.   // CHECK:STDERR:   ^~~~
    23. 

  23.   // CHECK:STDERR:
    24. 

  24.   b[0] = 4;
    25. 

  25. 

  26.   // Indexing an ephemeral reference (materialized from an initializing
    27. 

  27.   // expression) gives a value.
    28. 

  28.   // CHECK:STDERR: fail_expr_category.carbon:[[@LINE+4]]:18: error: cannot take the address of non-reference expression [AddrOfNonRef]
    29. 

  29.   // CHECK:STDERR:   var pf: i32* = &F()[0];
    30. 

  30.   // CHECK:STDERR:                  ^
    31. 

  31.   // CHECK:STDERR:
    32. 

  32.   var pf: i32* = &F()[0];
    33. 

  33.   // CHECK:STDERR: fail_expr_category.carbon:[[@LINE+3]]:3: error: expression is not assignable [AssignmentToNonAssignable]
    34. 

  34.   // CHECK:STDERR:   F()[0] = 4;
    35. 

  35.   // CHECK:STDERR:   ^~~~~~
    36. 

  36.   F()[0] = 4;
    37. 

  37. }
    38. 

  38. 

  39. // CHECK:STDOUT: --- fail_expr_category.carbon
    40. 

  40. // CHECK:STDOUT:
    41. 

  41. // CHECK:STDOUT: constants {
    42. 

  42. // CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 32 [template]
    43. 

  43. // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
    44. 

  44. // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
    45. 

  45. // CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
    46. 

  46. // CHECK:STDOUT:   %.2: Core.IntLiteral = int_value 3 [template]
    47. 

  47. // CHECK:STDOUT:   %.3: type = array_type %.2, %i32 [template]
    48. 

  48. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    49. 

  49. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    50. 

  50. // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
    51. 

  51. // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
    52. 

  52. // CHECK:STDOUT:   %.5: type = ptr_type %i32 [template]
    53. 

  53. // CHECK:STDOUT:   %.6: Core.IntLiteral = int_value 0 [template]
    54. 

  54. // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    55. 

  55. // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
    56. 

  56. // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
    57. 

  57. // CHECK:STDOUT:   %.26: <witness> = interface_witness (%Convert.14) [template]
    58. 

  58. // CHECK:STDOUT:   %.27: <bound method> = bound_method %.6, %Convert.14 [template]
    59. 

  59. // CHECK:STDOUT:   %.28: <specific function> = specific_function %.27, @Convert.2(%.1) [template]
    60. 

  60. // CHECK:STDOUT:   %.29: %i32 = int_value 0 [template]
    61. 

  61. // CHECK:STDOUT:   %.30: Core.IntLiteral = int_value 4 [template]
    62. 

  62. // CHECK:STDOUT:   %.31: <bound method> = bound_method %.30, %Convert.14 [template]
    63. 

  63. // CHECK:STDOUT:   %.32: <specific function> = specific_function %.31, @Convert.2(%.1) [template]
    64. 

  64. // CHECK:STDOUT:   %.33: %i32 = int_value 4 [template]
    65. 

  65. // CHECK:STDOUT: }
    66. 

  66. // CHECK:STDOUT:
    67. 

  67. // CHECK:STDOUT: imports {
    68. 

  68. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    69. 

  69. // CHECK:STDOUT:     .Int = %import_ref.1
    70. 

  70. // CHECK:STDOUT:     .ImplicitAs = %import_ref.2
    71. 

  71. // CHECK:STDOUT:     import Core//prelude
    72. 

  72. // CHECK:STDOUT:     import Core//prelude/...
    73. 

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT: }
    75. 

  75. // CHECK:STDOUT:
    76. 

  76. // CHECK:STDOUT: file {
    77. 

  77. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    78. 

  78. // CHECK:STDOUT:     .Core = imports.%Core
    79. 

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

  80. // CHECK:STDOUT:     .G = %G.decl
    81. 

  81. // CHECK:STDOUT:   }
    82. 

  82. // CHECK:STDOUT:   %Core.import = import Core
    83. 

  83. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    84. 

  84. // CHECK:STDOUT:     %return.patt: %.3 = return_slot_pattern
    85. 

  85. // CHECK:STDOUT:     %return.param_patt: %.3 = out_param_pattern %return.patt, runtime_param0
    86. 

  86. // CHECK:STDOUT:   } {
    87. 

  87. // CHECK:STDOUT:     %.loc11_12.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
    88. 

  88. // CHECK:STDOUT:     %int.make_type_signed: init type = call constants.%Int(%.loc11_12.1) [template = constants.%i32]
    89. 

  89. // CHECK:STDOUT:     %.loc11_17: Core.IntLiteral = int_value 3 [template = constants.%.2]
    90. 

  90. // CHECK:STDOUT:     %.loc11_12.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
    91. 

  91. // CHECK:STDOUT:     %.loc11_12.3: type = converted %int.make_type_signed, %.loc11_12.2 [template = constants.%i32]
    92. 

  92. // CHECK:STDOUT:     %.loc11_18: type = array_type %.loc11_17, %i32 [template = constants.%.3]
    93. 

  93. // CHECK:STDOUT:     %return.param: ref %.3 = out_param runtime_param0
    94. 

  94. // CHECK:STDOUT:     %return: ref %.3 = return_slot %return.param
    95. 

  95. // CHECK:STDOUT:   }
    96. 

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

  97. // CHECK:STDOUT:     %b.patt: %.3 = binding_pattern b
    98. 

  98. // CHECK:STDOUT:     %b.param_patt: %.3 = value_param_pattern %b.patt, runtime_param0
    99. 

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

  100. // CHECK:STDOUT:     %.loc13_10.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
    101. 

  101. // CHECK:STDOUT:     %int.make_type_signed.loc13: init type = call constants.%Int(%.loc13_10.1) [template = constants.%i32]
    102. 

  102. // CHECK:STDOUT:     %.loc13_15: Core.IntLiteral = int_value 3 [template = constants.%.2]
    103. 

  103. // CHECK:STDOUT:     %.loc13_10.2: type = value_of_initializer %int.make_type_signed.loc13 [template = constants.%i32]
    104. 

  104. // CHECK:STDOUT:     %.loc13_10.3: type = converted %int.make_type_signed.loc13, %.loc13_10.2 [template = constants.%i32]
    105. 

  105. // CHECK:STDOUT:     %.loc13_16: type = array_type %.loc13_15, %i32 [template = constants.%.3]
    106. 

  106. // CHECK:STDOUT:     %b.param: %.3 = value_param runtime_param0
    107. 

  107. // CHECK:STDOUT:     %b: %.3 = bind_name b, %b.param
    108. 

  108. // CHECK:STDOUT:   }
    109. 

  109. // CHECK:STDOUT: }
    110. 

  110. // CHECK:STDOUT:
    111. 

  111. // CHECK:STDOUT: fn @F() -> %.3;
    112. 

  112. // CHECK:STDOUT:
    113. 

  113. // CHECK:STDOUT: fn @G(%b.param_patt: %.3) {
    114. 

  114. // CHECK:STDOUT: !entry:
    115. 

  115. // CHECK:STDOUT:   %.loc19_11: Core.IntLiteral = int_value 32 [template = constants.%.1]
    116. 

  116. // CHECK:STDOUT:   %int.make_type_signed.loc19: init type = call constants.%Int(%.loc19_11) [template = constants.%i32]
    117. 

  117. // CHECK:STDOUT:   %.loc19_14.1: type = value_of_initializer %int.make_type_signed.loc19 [template = constants.%i32]
    118. 

  118. // CHECK:STDOUT:   %.loc19_14.2: type = converted %int.make_type_signed.loc19, %.loc19_14.1 [template = constants.%i32]
    119. 

  119. // CHECK:STDOUT:   %.loc19_14.3: type = ptr_type %i32 [template = constants.%.5]
    120. 

  120. // CHECK:STDOUT:   %pb.var: ref %.5 = var pb
    121. 

  121. // CHECK:STDOUT:   %pb: ref %.5 = bind_name pb, %pb.var
    122. 

  122. // CHECK:STDOUT:   %b.ref.loc19: %.3 = name_ref b, %b
    123. 

  123. // CHECK:STDOUT:   %.loc19_21.1: Core.IntLiteral = int_value 0 [template = constants.%.6]
    124. 

  124. // CHECK:STDOUT:   %.loc19_21.2: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    125. 

  125. // CHECK:STDOUT:   %.loc19_21.3: <bound method> = bound_method %.loc19_21.1, %.loc19_21.2 [template = constants.%.27]
    126. 

  126. // CHECK:STDOUT:   %.loc19_21.4: <specific function> = specific_function %.loc19_21.3, @Convert.2(constants.%.1) [template = constants.%.28]
    127. 

  127. // CHECK:STDOUT:   %int.convert_checked.loc19: init %i32 = call %.loc19_21.4(%.loc19_21.1) [template = constants.%.29]
    128. 

  128. // CHECK:STDOUT:   %.loc19_21.5: %i32 = value_of_initializer %int.convert_checked.loc19 [template = constants.%.29]
    129. 

  129. // CHECK:STDOUT:   %.loc19_21.6: %i32 = converted %.loc19_21.1, %.loc19_21.5 [template = constants.%.29]
    130. 

  130. // CHECK:STDOUT:   %.loc19_22.1: ref %.3 = value_as_ref %b.ref.loc19
    131. 

  131. // CHECK:STDOUT:   %.loc19_22.2: ref %i32 = array_index %.loc19_22.1, %.loc19_21.6
    132. 

  132. // CHECK:STDOUT:   %.loc19_22.3: %i32 = bind_value %.loc19_22.2
    133. 

  133. // CHECK:STDOUT:   %.loc19_18: %.5 = addr_of <error> [template = <error>]
    134. 

  134. // CHECK:STDOUT:   assign %pb.var, %.loc19_18
    135. 

  135. // CHECK:STDOUT:   %b.ref.loc24: %.3 = name_ref b, %b
    136. 

  136. // CHECK:STDOUT:   %.loc24_5.1: Core.IntLiteral = int_value 0 [template = constants.%.6]
    137. 

  137. // CHECK:STDOUT:   %.loc24_5.2: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    138. 

  138. // CHECK:STDOUT:   %.loc24_5.3: <bound method> = bound_method %.loc24_5.1, %.loc24_5.2 [template = constants.%.27]
    139. 

  139. // CHECK:STDOUT:   %.loc24_5.4: <specific function> = specific_function %.loc24_5.3, @Convert.2(constants.%.1) [template = constants.%.28]
    140. 

  140. // CHECK:STDOUT:   %int.convert_checked.loc24_5: init %i32 = call %.loc24_5.4(%.loc24_5.1) [template = constants.%.29]
    141. 

  141. // CHECK:STDOUT:   %.loc24_5.5: %i32 = value_of_initializer %int.convert_checked.loc24_5 [template = constants.%.29]
    142. 

  142. // CHECK:STDOUT:   %.loc24_5.6: %i32 = converted %.loc24_5.1, %.loc24_5.5 [template = constants.%.29]
    143. 

  143. // CHECK:STDOUT:   %.loc24_6.1: ref %.3 = value_as_ref %b.ref.loc24
    144. 

  144. // CHECK:STDOUT:   %.loc24_6.2: ref %i32 = array_index %.loc24_6.1, %.loc24_5.6
    145. 

  145. // CHECK:STDOUT:   %.loc24_6.3: %i32 = bind_value %.loc24_6.2
    146. 

  146. // CHECK:STDOUT:   %.loc24_10: Core.IntLiteral = int_value 4 [template = constants.%.30]
    147. 

  147. // CHECK:STDOUT:   %.loc24_8.1: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    148. 

  148. // CHECK:STDOUT:   %.loc24_8.2: <bound method> = bound_method %.loc24_10, %.loc24_8.1 [template = constants.%.31]
    149. 

  149. // CHECK:STDOUT:   %.loc24_8.3: <specific function> = specific_function %.loc24_8.2, @Convert.2(constants.%.1) [template = constants.%.32]
    150. 

  150. // CHECK:STDOUT:   %int.convert_checked.loc24_8: init %i32 = call %.loc24_8.3(%.loc24_10) [template = constants.%.33]
    151. 

  151. // CHECK:STDOUT:   %.loc24_8.4: init %i32 = converted %.loc24_10, %int.convert_checked.loc24_8 [template = constants.%.33]
    152. 

  152. // CHECK:STDOUT:   assign %.loc24_6.3, %.loc24_8.4
    153. 

  153. // CHECK:STDOUT:   %.loc32_11: Core.IntLiteral = int_value 32 [template = constants.%.1]
    154. 

  154. // CHECK:STDOUT:   %int.make_type_signed.loc32: init type = call constants.%Int(%.loc32_11) [template = constants.%i32]
    155. 

  155. // CHECK:STDOUT:   %.loc32_14.1: type = value_of_initializer %int.make_type_signed.loc32 [template = constants.%i32]
    156. 

  156. // CHECK:STDOUT:   %.loc32_14.2: type = converted %int.make_type_signed.loc32, %.loc32_14.1 [template = constants.%i32]
    157. 

  157. // CHECK:STDOUT:   %.loc32_14.3: type = ptr_type %i32 [template = constants.%.5]
    158. 

  158. // CHECK:STDOUT:   %pf.var: ref %.5 = var pf
    159. 

  159. // CHECK:STDOUT:   %pf: ref %.5 = bind_name pf, %pf.var
    160. 

  160. // CHECK:STDOUT:   %F.ref.loc32: %F.type = name_ref F, file.%F.decl [template = constants.%F]
    161. 

  161. // CHECK:STDOUT:   %.loc32_20.1: ref %.3 = temporary_storage
    162. 

  162. // CHECK:STDOUT:   %F.call.loc32: init %.3 = call %F.ref.loc32() to %.loc32_20.1
    163. 

  163. // CHECK:STDOUT:   %.loc32_23.1: Core.IntLiteral = int_value 0 [template = constants.%.6]
    164. 

  164. // CHECK:STDOUT:   %.loc32_20.2: ref %.3 = temporary %.loc32_20.1, %F.call.loc32
    165. 

  165. // CHECK:STDOUT:   %.loc32_23.2: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    166. 

  166. // CHECK:STDOUT:   %.loc32_23.3: <bound method> = bound_method %.loc32_23.1, %.loc32_23.2 [template = constants.%.27]
    167. 

  167. // CHECK:STDOUT:   %.loc32_23.4: <specific function> = specific_function %.loc32_23.3, @Convert.2(constants.%.1) [template = constants.%.28]
    168. 

  168. // CHECK:STDOUT:   %int.convert_checked.loc32: init %i32 = call %.loc32_23.4(%.loc32_23.1) [template = constants.%.29]
    169. 

  169. // CHECK:STDOUT:   %.loc32_23.5: %i32 = value_of_initializer %int.convert_checked.loc32 [template = constants.%.29]
    170. 

  170. // CHECK:STDOUT:   %.loc32_23.6: %i32 = converted %.loc32_23.1, %.loc32_23.5 [template = constants.%.29]
    171. 

  171. // CHECK:STDOUT:   %.loc32_24.1: ref %i32 = array_index %.loc32_20.2, %.loc32_23.6
    172. 

  172. // CHECK:STDOUT:   %.loc32_24.2: %i32 = bind_value %.loc32_24.1
    173. 

  173. // CHECK:STDOUT:   %.loc32_18: %.5 = addr_of <error> [template = <error>]
    174. 

  174. // CHECK:STDOUT:   assign %pf.var, %.loc32_18
    175. 

  175. // CHECK:STDOUT:   %F.ref.loc36: %F.type = name_ref F, file.%F.decl [template = constants.%F]
    176. 

  176. // CHECK:STDOUT:   %.loc36_4.1: ref %.3 = temporary_storage
    177. 

  177. // CHECK:STDOUT:   %F.call.loc36: init %.3 = call %F.ref.loc36() to %.loc36_4.1
    178. 

  178. // CHECK:STDOUT:   %.loc36_7.1: Core.IntLiteral = int_value 0 [template = constants.%.6]
    179. 

  179. // CHECK:STDOUT:   %.loc36_4.2: ref %.3 = temporary %.loc36_4.1, %F.call.loc36
    180. 

  180. // CHECK:STDOUT:   %.loc36_7.2: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    181. 

  181. // CHECK:STDOUT:   %.loc36_7.3: <bound method> = bound_method %.loc36_7.1, %.loc36_7.2 [template = constants.%.27]
    182. 

  182. // CHECK:STDOUT:   %.loc36_7.4: <specific function> = specific_function %.loc36_7.3, @Convert.2(constants.%.1) [template = constants.%.28]
    183. 

  183. // CHECK:STDOUT:   %int.convert_checked.loc36_7: init %i32 = call %.loc36_7.4(%.loc36_7.1) [template = constants.%.29]
    184. 

  184. // CHECK:STDOUT:   %.loc36_7.5: %i32 = value_of_initializer %int.convert_checked.loc36_7 [template = constants.%.29]
    185. 

  185. // CHECK:STDOUT:   %.loc36_7.6: %i32 = converted %.loc36_7.1, %.loc36_7.5 [template = constants.%.29]
    186. 

  186. // CHECK:STDOUT:   %.loc36_8.1: ref %i32 = array_index %.loc36_4.2, %.loc36_7.6
    187. 

  187. // CHECK:STDOUT:   %.loc36_8.2: %i32 = bind_value %.loc36_8.1
    188. 

  188. // CHECK:STDOUT:   %.loc36_12: Core.IntLiteral = int_value 4 [template = constants.%.30]
    189. 

  189. // CHECK:STDOUT:   %.loc36_10.1: %Convert.type.2 = interface_witness_access constants.%.26, element0 [template = constants.%Convert.14]
    190. 

  190. // CHECK:STDOUT:   %.loc36_10.2: <bound method> = bound_method %.loc36_12, %.loc36_10.1 [template = constants.%.31]
    191. 

  191. // CHECK:STDOUT:   %.loc36_10.3: <specific function> = specific_function %.loc36_10.2, @Convert.2(constants.%.1) [template = constants.%.32]
    192. 

  192. // CHECK:STDOUT:   %int.convert_checked.loc36_10: init %i32 = call %.loc36_10.3(%.loc36_12) [template = constants.%.33]
    193. 

  193. // CHECK:STDOUT:   %.loc36_10.4: init %i32 = converted %.loc36_12, %int.convert_checked.loc36_10 [template = constants.%.33]
    194. 

  194. // CHECK:STDOUT:   assign %.loc36_8.2, %.loc36_10.4
    195. 

  195. // CHECK:STDOUT:   return
    196. 

  196. // CHECK:STDOUT: }
    197. 

  197. // CHECK:STDOUT:
    198.