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carbon-lang
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toolchain
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operators
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overloaded
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fail_assign_non_ref.carbon

fail_assign_non_ref.carbon 12 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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
    6. 

  6. // TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
    7. 

  7. // EXTRA-ARGS: --dump-sem-ir-ranges=if-present
    8. 

  8. //
    9. 

  9. // AUTOUPDATE
    10. 

  10. // TIP: To test this file alone, run:
    11. 

  11. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
    12. 

  12. // TIP: To dump output, run:
    13. 

  13. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/operators/overloaded/fail_assign_non_ref.carbon
    14. 

  14. 

  15. package User;
    16. 

  16. 

  17. class C {};
    18. 

  18. 

  19. impl C as Core.Inc {
    20. 

  20.   fn Op[ref self: C]();
    21. 

  21. }
    22. 

  22. impl C as Core.AddAssignWith(C) {
    23. 

  23.   fn Op[ref self: C](other: C);
    24. 

  24. }
    25. 

  25. 

  26. fn TestIncNonRef(a: C) {
    27. 

  27.   // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE+7]]:5: error: value expression passed to reference parameter [ValueForRefParam]
    28. 

  28.   // CHECK:STDERR:   ++a;
    29. 

  29.   // CHECK:STDERR:     ^
    30. 

  30.   // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE-10]]:9: note: initializing function parameter [InCallToFunctionParam]
    31. 

  31.   // CHECK:STDERR:   fn Op[ref self: C]();
    32. 

  32.   // CHECK:STDERR:         ^~~~~~~~~~~
    33. 

  33.   // CHECK:STDERR:
    34. 

  34.   ++a;
    35. 

  35. }
    36. 

  36. 

  37. fn TestAddAssignNonRef(a: C, b: C) {
    38. 

  38.   // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE+7]]:3: error: value expression passed to reference parameter [ValueForRefParam]
    39. 

  39.   // CHECK:STDERR:   a += b;
    40. 

  40.   // CHECK:STDERR:   ^
    41. 

  41.   // CHECK:STDERR: fail_assign_non_ref.carbon:[[@LINE-18]]:9: note: initializing function parameter [InCallToFunctionParam]
    42. 

  42.   // CHECK:STDERR:   fn Op[ref self: C](other: C);
    43. 

  43.   // CHECK:STDERR:         ^~~~~~~~~~~
    44. 

  44.   // CHECK:STDERR:
    45. 

  45.   a += b;
    46. 

  46. }
    47. 

  47. 

  48. // CHECK:STDOUT: --- fail_assign_non_ref.carbon
    49. 

  49. // CHECK:STDOUT:
    50. 

  50. // CHECK:STDOUT: constants {
    51. 

  51. // CHECK:STDOUT:   %C: type = class_type @C [concrete]
    52. 

  52. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    53. 

  53. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness %empty_struct_type [concrete]
    54. 

  54. // CHECK:STDOUT:   %Inc.type: type = facet_type <@Inc> [concrete]
    55. 

  55. // CHECK:STDOUT:   %Inc.impl_witness: <witness> = impl_witness @C.as.Inc.impl.%Inc.impl_witness_table [concrete]
    56. 

  56. // CHECK:STDOUT:   %pattern_type.476: type = pattern_type %C [concrete]
    57. 

  57. // CHECK:STDOUT:   %C.as.Inc.impl.Op.type: type = fn_type @C.as.Inc.impl.Op [concrete]
    58. 

  58. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    59. 

  59. // CHECK:STDOUT:   %C.as.Inc.impl.Op: %C.as.Inc.impl.Op.type = struct_value () [concrete]
    60. 

  60. // CHECK:STDOUT:   %Inc.facet: %Inc.type = facet_value %C, (%Inc.impl_witness) [concrete]
    61. 

  61. // CHECK:STDOUT:   %Inc.WithSelf.Op.type.700: type = fn_type @Inc.WithSelf.Op, @Inc.WithSelf(%Inc.facet) [concrete]
    62. 

  62. // CHECK:STDOUT:   %AddAssignWith.type.fc6: type = generic_interface_type @AddAssignWith [concrete]
    63. 

  63. // CHECK:STDOUT:   %AddAssignWith.generic: %AddAssignWith.type.fc6 = struct_value () [concrete]
    64. 

  64. // CHECK:STDOUT:   %AddAssignWith.type.16b: type = facet_type <@AddAssignWith, @AddAssignWith(%C)> [concrete]
    65. 

  65. // CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness @C.as.AddAssignWith.impl.%AddAssignWith.impl_witness_table [concrete]
    66. 

  66. // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.type: type = fn_type @C.as.AddAssignWith.impl.Op [concrete]
    67. 

  67. // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op: %C.as.AddAssignWith.impl.Op.type = struct_value () [concrete]
    68. 

  68. // CHECK:STDOUT:   %AddAssignWith.facet: %AddAssignWith.type.16b = facet_value %C, (%AddAssignWith.impl_witness) [concrete]
    69. 

  69. // CHECK:STDOUT:   %AddAssignWith.WithSelf.Op.type.2b1: type = fn_type @AddAssignWith.WithSelf.Op, @AddAssignWith.WithSelf(%C, %AddAssignWith.facet) [concrete]
    70. 

  70. // CHECK:STDOUT:   %TestIncNonRef.type: type = fn_type @TestIncNonRef [concrete]
    71. 

  71. // CHECK:STDOUT:   %TestIncNonRef: %TestIncNonRef.type = struct_value () [concrete]
    72. 

  72. // CHECK:STDOUT:   %.38a: type = fn_type_with_self_type %Inc.WithSelf.Op.type.700, %Inc.facet [concrete]
    73. 

  73. // CHECK:STDOUT:   %TestAddAssignNonRef.type: type = fn_type @TestAddAssignNonRef [concrete]
    74. 

  74. // CHECK:STDOUT:   %TestAddAssignNonRef: %TestAddAssignNonRef.type = struct_value () [concrete]
    75. 

  75. // CHECK:STDOUT:   %.168: type = fn_type_with_self_type %AddAssignWith.WithSelf.Op.type.2b1, %AddAssignWith.facet [concrete]
    76. 

  76. // CHECK:STDOUT: }
    77. 

  77. // CHECK:STDOUT:
    78. 

  78. // CHECK:STDOUT: imports {
    79. 

  79. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    80. 

  80. // CHECK:STDOUT:     .Inc = %Core.Inc
    81. 

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

  82. // CHECK:STDOUT:     import Core//prelude
    83. 

  83. // CHECK:STDOUT:     import Core//prelude/...
    84. 

  84. // CHECK:STDOUT:   }
    85. 

  85. // CHECK:STDOUT:   %Core.Inc: type = import_ref Core//prelude/operators/arithmetic, Inc, loaded [concrete = constants.%Inc.type]
    86. 

  86. // CHECK:STDOUT:   %Core.AddAssignWith: %AddAssignWith.type.fc6 = import_ref Core//prelude/operators/arithmetic, AddAssignWith, loaded [concrete = constants.%AddAssignWith.generic]
    87. 

  87. // CHECK:STDOUT: }
    88. 

  88. // CHECK:STDOUT:
    89. 

  89. // CHECK:STDOUT: file {
    90. 

  90. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    91. 

  91. // CHECK:STDOUT:     .Core = imports.%Core
    92. 

  92. // CHECK:STDOUT:     .C = %C.decl
    93. 

  93. // CHECK:STDOUT:     .TestIncNonRef = %TestIncNonRef.decl
    94. 

  94. // CHECK:STDOUT:     .TestAddAssignNonRef = %TestAddAssignNonRef.decl
    95. 

  95. // CHECK:STDOUT:   }
    96. 

  96. // CHECK:STDOUT:   %Core.import = import Core
    97. 

  97. // CHECK:STDOUT:   %C.decl: type = class_decl @C [concrete = constants.%C] {} {}
    98. 

  98. // CHECK:STDOUT:   impl_decl @C.as.Inc.impl [concrete] {} {
    99. 

  99. // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
    100. 

  100. // CHECK:STDOUT:     %Core.ref: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
    101. 

  101. // CHECK:STDOUT:     %Inc.ref: type = name_ref Inc, imports.%Core.Inc [concrete = constants.%Inc.type]
    102. 

  102. // CHECK:STDOUT:   }
    103. 

  103. // CHECK:STDOUT:   impl_decl @C.as.AddAssignWith.impl [concrete] {} {
    104. 

  104. // CHECK:STDOUT:     %C.ref.loc22_6: type = name_ref C, file.%C.decl [concrete = constants.%C]
    105. 

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

  106. // CHECK:STDOUT:     %AddAssignWith.ref: %AddAssignWith.type.fc6 = name_ref AddAssignWith, imports.%Core.AddAssignWith [concrete = constants.%AddAssignWith.generic]
    107. 

  107. // CHECK:STDOUT:     %C.ref.loc22_30: type = name_ref C, file.%C.decl [concrete = constants.%C]
    108. 

  108. // CHECK:STDOUT:     %AddAssignWith.type: type = facet_type <@AddAssignWith, @AddAssignWith(constants.%C)> [concrete = constants.%AddAssignWith.type.16b]
    109. 

  109. // CHECK:STDOUT:   }
    110. 

  110. // CHECK:STDOUT:   %TestIncNonRef.decl: %TestIncNonRef.type = fn_decl @TestIncNonRef [concrete = constants.%TestIncNonRef] {
    111. 

  111. // CHECK:STDOUT:     %a.param_patt: %pattern_type.476 = value_param_pattern [concrete]
    112. 

  112. // CHECK:STDOUT:     %a.patt: %pattern_type.476 = at_binding_pattern a, %a.param_patt [concrete]
    113. 

  113. // CHECK:STDOUT:   } {
    114. 

  114. // CHECK:STDOUT:     %a.param: %C = value_param call_param0
    115. 

  115. // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
    116. 

  116. // CHECK:STDOUT:     %a: %C = value_binding a, %a.param
    117. 

  117. // CHECK:STDOUT:   }
    118. 

  118. // CHECK:STDOUT:   %TestAddAssignNonRef.decl: %TestAddAssignNonRef.type = fn_decl @TestAddAssignNonRef [concrete = constants.%TestAddAssignNonRef] {
    119. 

  119. // CHECK:STDOUT:     %a.param_patt: %pattern_type.476 = value_param_pattern [concrete]
    120. 

  120. // CHECK:STDOUT:     %a.patt: %pattern_type.476 = at_binding_pattern a, %a.param_patt [concrete]
    121. 

  121. // CHECK:STDOUT:     %b.param_patt: %pattern_type.476 = value_param_pattern [concrete]
    122. 

  122. // CHECK:STDOUT:     %b.patt: %pattern_type.476 = at_binding_pattern b, %b.param_patt [concrete]
    123. 

  123. // CHECK:STDOUT:   } {
    124. 

  124. // CHECK:STDOUT:     %a.param: %C = value_param call_param0
    125. 

  125. // CHECK:STDOUT:     %C.ref.loc37_27: type = name_ref C, file.%C.decl [concrete = constants.%C]
    126. 

  126. // CHECK:STDOUT:     %a: %C = value_binding a, %a.param
    127. 

  127. // CHECK:STDOUT:     %b.param: %C = value_param call_param1
    128. 

  128. // CHECK:STDOUT:     %C.ref.loc37_33: type = name_ref C, file.%C.decl [concrete = constants.%C]
    129. 

  129. // CHECK:STDOUT:     %b: %C = value_binding b, %b.param
    130. 

  130. // CHECK:STDOUT:   }
    131. 

  131. // CHECK:STDOUT: }
    132. 

  132. // CHECK:STDOUT:
    133. 

  133. // CHECK:STDOUT: impl @C.as.Inc.impl: %C.ref as %Inc.ref {
    134. 

  134. // CHECK:STDOUT:   %C.as.Inc.impl.Op.decl: %C.as.Inc.impl.Op.type = fn_decl @C.as.Inc.impl.Op [concrete = constants.%C.as.Inc.impl.Op] {
    135. 

  135. // CHECK:STDOUT:     %self.param_patt: %pattern_type.476 = ref_param_pattern [concrete]
    136. 

  136. // CHECK:STDOUT:     %self.patt: %pattern_type.476 = at_binding_pattern self, %self.param_patt [concrete]
    137. 

  137. // CHECK:STDOUT:   } {
    138. 

  138. // CHECK:STDOUT:     %self.param: ref %C = ref_param call_param0
    139. 

  139. // CHECK:STDOUT:     %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
    140. 

  140. // CHECK:STDOUT:     %self: ref %C = ref_binding self, %self.param
    141. 

  141. // CHECK:STDOUT:   }
    142. 

  142. // CHECK:STDOUT:   %Inc.impl_witness_table = impl_witness_table (%C.as.Inc.impl.Op.decl), @C.as.Inc.impl [concrete]
    143. 

  143. // CHECK:STDOUT:   %Inc.impl_witness: <witness> = impl_witness %Inc.impl_witness_table [concrete = constants.%Inc.impl_witness]
    144. 

  144. // CHECK:STDOUT:
    145. 

  145. // CHECK:STDOUT: !members:
    146. 

  146. // CHECK:STDOUT:   .C = <poisoned>
    147. 

  147. // CHECK:STDOUT:   .Op = %C.as.Inc.impl.Op.decl
    148. 

  148. // CHECK:STDOUT:   witness = %Inc.impl_witness
    149. 

  149. // CHECK:STDOUT: }
    150. 

  150. // CHECK:STDOUT:
    151. 

  151. // CHECK:STDOUT: impl @C.as.AddAssignWith.impl: %C.ref.loc22_6 as %AddAssignWith.type {
    152. 

  152. // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.decl: %C.as.AddAssignWith.impl.Op.type = fn_decl @C.as.AddAssignWith.impl.Op [concrete = constants.%C.as.AddAssignWith.impl.Op] {
    153. 

  153. // CHECK:STDOUT:     %self.param_patt: %pattern_type.476 = ref_param_pattern [concrete]
    154. 

  154. // CHECK:STDOUT:     %self.patt: %pattern_type.476 = at_binding_pattern self, %self.param_patt [concrete]
    155. 

  155. // CHECK:STDOUT:     %other.param_patt: %pattern_type.476 = value_param_pattern [concrete]
    156. 

  156. // CHECK:STDOUT:     %other.patt: %pattern_type.476 = at_binding_pattern other, %other.param_patt [concrete]
    157. 

  157. // CHECK:STDOUT:   } {
    158. 

  158. // CHECK:STDOUT:     %self.param: ref %C = ref_param call_param0
    159. 

  159. // CHECK:STDOUT:     %C.ref.loc23_19: type = name_ref C, file.%C.decl [concrete = constants.%C]
    160. 

  160. // CHECK:STDOUT:     %self: ref %C = ref_binding self, %self.param
    161. 

  161. // CHECK:STDOUT:     %other.param: %C = value_param call_param1
    162. 

  162. // CHECK:STDOUT:     %C.ref.loc23_29: type = name_ref C, file.%C.decl [concrete = constants.%C]
    163. 

  163. // CHECK:STDOUT:     %other: %C = value_binding other, %other.param
    164. 

  164. // CHECK:STDOUT:   }
    165. 

  165. // CHECK:STDOUT:   %AddAssignWith.impl_witness_table = impl_witness_table (%C.as.AddAssignWith.impl.Op.decl), @C.as.AddAssignWith.impl [concrete]
    166. 

  166. // CHECK:STDOUT:   %AddAssignWith.impl_witness: <witness> = impl_witness %AddAssignWith.impl_witness_table [concrete = constants.%AddAssignWith.impl_witness]
    167. 

  167. // CHECK:STDOUT:
    168. 

  168. // CHECK:STDOUT: !members:
    169. 

  169. // CHECK:STDOUT:   .C = <poisoned>
    170. 

  170. // CHECK:STDOUT:   .Op = %C.as.AddAssignWith.impl.Op.decl
    171. 

  171. // CHECK:STDOUT:   witness = %AddAssignWith.impl_witness
    172. 

  172. // CHECK:STDOUT: }
    173. 

  173. // CHECK:STDOUT:
    174. 

  174. // CHECK:STDOUT: class @C {
    175. 

  175. // CHECK:STDOUT:   %complete_type: <witness> = complete_type_witness constants.%empty_struct_type [concrete = constants.%complete_type]
    176. 

  176. // CHECK:STDOUT:   complete_type_witness = %complete_type
    177. 

  177. // CHECK:STDOUT:
    178. 

  178. // CHECK:STDOUT: !members:
    179. 

  179. // CHECK:STDOUT:   .Self = constants.%C
    180. 

  180. // CHECK:STDOUT: }
    181. 

  181. // CHECK:STDOUT:
    182. 

  182. // CHECK:STDOUT: fn @C.as.Inc.impl.Op(%self.param: ref %C);
    183. 

  183. // CHECK:STDOUT:
    184. 

  184. // CHECK:STDOUT: fn @C.as.AddAssignWith.impl.Op(%self.param: ref %C, %other.param: %C);
    185. 

  185. // CHECK:STDOUT:
    186. 

  186. // CHECK:STDOUT: fn @TestIncNonRef(%a.param: %C) {
    187. 

  187. // CHECK:STDOUT: !entry:
    188. 

  188. // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
    189. 

  189. // CHECK:STDOUT:   %impl.elem0: %.38a = impl_witness_access constants.%Inc.impl_witness, element0 [concrete = constants.%C.as.Inc.impl.Op]
    190. 

  190. // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
    191. 

  191. // CHECK:STDOUT:   %C.as.Inc.impl.Op.call: init %empty_tuple.type = call %bound_method(<error>)
    192. 

  192. // CHECK:STDOUT:   return
    193. 

  193. // CHECK:STDOUT: }
    194. 

  194. // CHECK:STDOUT:
    195. 

  195. // CHECK:STDOUT: fn @TestAddAssignNonRef(%a.param: %C, %b.param: %C) {
    196. 

  196. // CHECK:STDOUT: !entry:
    197. 

  197. // CHECK:STDOUT:   %a.ref: %C = name_ref a, %a
    198. 

  198. // CHECK:STDOUT:   %b.ref: %C = name_ref b, %b
    199. 

  199. // CHECK:STDOUT:   %impl.elem0: %.168 = impl_witness_access constants.%AddAssignWith.impl_witness, element0 [concrete = constants.%C.as.AddAssignWith.impl.Op]
    200. 

  200. // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %a.ref, %impl.elem0
    201. 

  201. // CHECK:STDOUT:   %C.as.AddAssignWith.impl.Op.call: init %empty_tuple.type = call %bound_method(<error>, %b.ref)
    202. 

  202. // CHECK:STDOUT:   return
    203. 

  203. // CHECK:STDOUT: }
    204. 

  204. // CHECK:STDOUT:
    205.