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fail_assignment_to_non_assignable.carbon

fail_assignment_to_non_assignable.carbon 10 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. 

  7. fn F() -> i32;
    8. 

  8. 

  9. fn Main() {
    10. 

  10.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    11. 

  11.   // CHECK:STDERR:   1 = 2;
    12. 

  12.   // CHECK:STDERR:   ^
    13. 

  13.   1 = 2;
    14. 

  14.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    15. 

  15.   // CHECK:STDERR:   F() = 1;
    16. 

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

  17.   F() = 1;
    18. 

  18.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    19. 

  19.   // CHECK:STDERR:   (1, 2) = (3, 4);
    20. 

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

  21.   (1, 2) = (3, 4);
    22. 

  22.   var n: i32 = 0;
    23. 

  23.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    24. 

  24.   // CHECK:STDERR:   (n, n) = (1, 2);
    25. 

  25.   // CHECK:STDERR:   ^~~~~~
    26. 

  26.   (n, n) = (1, 2);
    27. 

  27.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    28. 

  28.   // CHECK:STDERR:   i32 = i32*;
    29. 

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

  30.   i32 = i32*;
    31. 

  31.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    32. 

  32.   // CHECK:STDERR:   {.x = 1, .y = 2} = {.x = 3, .y = 4};
    33. 

  33.   // CHECK:STDERR:   ^~~~~~~~~~~~~~~~
    34. 

  34.   {.x = 1, .y = 2} = {.x = 3, .y = 4};
    35. 

  35.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    36. 

  36.   // CHECK:STDERR:   (if true then 1 else 2) = 3;
    37. 

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

  38.   (if true then 1 else 2) = 3;
    39. 

  39. 

  40.   // Under #911, if expressions are never reference expressions.
    41. 

  41.   var a: i32;
    42. 

  42.   // CHECK:STDERR: fail_assignment_to_non_assignable.carbon:[[@LINE+3]]:3: ERROR: Expression is not assignable.
    43. 

  43.   // CHECK:STDERR:   (if true then a else a) = 10;
    44. 

  44.   // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~~~~~
    45. 

  45.   (if true then a else a) = 10;
    46. 

  46. }
    47. 

  47. 

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

  49. // CHECK:STDOUT:
    50. 

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

  51. // CHECK:STDOUT:   %.1: i32 = int_literal 1 [template]
    52. 

  52. // CHECK:STDOUT:   %.2: i32 = int_literal 2 [template]
    53. 

  53. // CHECK:STDOUT:   %.3: type = tuple_type (i32, i32) [template]
    54. 

  54. // CHECK:STDOUT:   %.4: i32 = int_literal 3 [template]
    55. 

  55. // CHECK:STDOUT:   %.5: i32 = int_literal 4 [template]
    56. 

  56. // CHECK:STDOUT:   %.6: type = ptr_type (i32, i32) [template]
    57. 

  57. // CHECK:STDOUT:   %.7: (i32, i32) = tuple_value (%.4, %.5) [template]
    58. 

  58. // CHECK:STDOUT:   %.8: (i32, i32) = tuple_value (%.1, %.2) [template]
    59. 

  59. // CHECK:STDOUT:   %.9: i32 = int_literal 0 [template]
    60. 

  60. // CHECK:STDOUT:   %.10: type = ptr_type i32 [template]
    61. 

  61. // CHECK:STDOUT:   %.11: type = struct_type {.x: i32, .y: i32} [template]
    62. 

  62. // CHECK:STDOUT:   %.12: type = ptr_type {.x: i32, .y: i32} [template]
    63. 

  63. // CHECK:STDOUT:   %.13: {.x: i32, .y: i32} = struct_value (%.4, %.5) [template]
    64. 

  64. // CHECK:STDOUT:   %.14: {.x: i32, .y: i32} = struct_value (%.1, %.2) [template]
    65. 

  65. // CHECK:STDOUT:   %.15: bool = bool_literal true [template]
    66. 

  66. // CHECK:STDOUT:   %.16: i32 = int_literal 10 [template]
    67. 

  67. // CHECK:STDOUT: }
    68. 

  68. // CHECK:STDOUT:
    69. 

  69. // CHECK:STDOUT: file {
    70. 

  70. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    71. 

  71. // CHECK:STDOUT:     .F = %F
    72. 

  72. // CHECK:STDOUT:     .Main = %Main
    73. 

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT:   %F: <function> = fn_decl @F [template] {
    75. 

  75. // CHECK:STDOUT:     %return.var: ref i32 = var <return slot>
    76. 

  76. // CHECK:STDOUT:   }
    77. 

  77. // CHECK:STDOUT:   %Main: <function> = fn_decl @Main [template] {}
    78. 

  78. // CHECK:STDOUT: }
    79. 

  79. // CHECK:STDOUT:
    80. 

  80. // CHECK:STDOUT: fn @F() -> i32;
    81. 

  81. // CHECK:STDOUT:
    82. 

  82. // CHECK:STDOUT: fn @Main() {
    83. 

  83. // CHECK:STDOUT: !entry:
    84. 

  84. // CHECK:STDOUT:   %.loc13_3: i32 = int_literal 1 [template = constants.%.1]
    85. 

  85. // CHECK:STDOUT:   %.loc13_7: i32 = int_literal 2 [template = constants.%.2]
    86. 

  86. // CHECK:STDOUT:   assign %.loc13_3, %.loc13_7
    87. 

  87. // CHECK:STDOUT:   %F.ref: <function> = name_ref F, file.%F [template = file.%F]
    88. 

  88. // CHECK:STDOUT:   %.loc17_4: init i32 = call %F.ref()
    89. 

  89. // CHECK:STDOUT:   %.loc17_9: i32 = int_literal 1 [template = constants.%.1]
    90. 

  90. // CHECK:STDOUT:   assign %.loc17_4, %.loc17_9
    91. 

  91. // CHECK:STDOUT:   %.loc21_4: i32 = int_literal 1 [template = constants.%.1]
    92. 

  92. // CHECK:STDOUT:   %.loc21_7: i32 = int_literal 2 [template = constants.%.2]
    93. 

  93. // CHECK:STDOUT:   %.loc21_8.1: (i32, i32) = tuple_literal (%.loc21_4, %.loc21_7)
    94. 

  94. // CHECK:STDOUT:   %.loc21_13: i32 = int_literal 3 [template = constants.%.4]
    95. 

  95. // CHECK:STDOUT:   %.loc21_16: i32 = int_literal 4 [template = constants.%.5]
    96. 

  96. // CHECK:STDOUT:   %.loc21_17.1: (i32, i32) = tuple_literal (%.loc21_13, %.loc21_16)
    97. 

  97. // CHECK:STDOUT:   %.loc21_17.2: i32 = tuple_access %.loc21_8.1, element0
    98. 

  98. // CHECK:STDOUT:   %.loc21_17.3: init i32 = initialize_from %.loc21_13 to %.loc21_17.2 [template = constants.%.4]
    99. 

  99. // CHECK:STDOUT:   %.loc21_17.4: i32 = tuple_access %.loc21_8.1, element1
    100. 

  100. // CHECK:STDOUT:   %.loc21_17.5: init i32 = initialize_from %.loc21_16 to %.loc21_17.4 [template = constants.%.5]
    101. 

  101. // CHECK:STDOUT:   %.loc21_17.6: init (i32, i32) = tuple_init (%.loc21_17.3, %.loc21_17.5) to %.loc21_8.1 [template = constants.%.7]
    102. 

  102. // CHECK:STDOUT:   %.loc21_17.7: init (i32, i32) = converted %.loc21_17.1, %.loc21_17.6 [template = constants.%.7]
    103. 

  103. // CHECK:STDOUT:   assign %.loc21_8.1, %.loc21_17.7
    104. 

  104. // CHECK:STDOUT:   %.loc21_8.2: (i32, i32) = tuple_value (%.loc21_4, %.loc21_7) [template = constants.%.8]
    105. 

  105. // CHECK:STDOUT:   %.loc21_8.3: (i32, i32) = converted %.loc21_8.1, %.loc21_8.2 [template = constants.%.8]
    106. 

  106. // CHECK:STDOUT:   %n.var: ref i32 = var n
    107. 

  107. // CHECK:STDOUT:   %n: ref i32 = bind_name n, %n.var
    108. 

  108. // CHECK:STDOUT:   %.loc22: i32 = int_literal 0 [template = constants.%.9]
    109. 

  109. // CHECK:STDOUT:   assign %n.var, %.loc22
    110. 

  110. // CHECK:STDOUT:   %n.ref.loc26_4: ref i32 = name_ref n, %n
    111. 

  111. // CHECK:STDOUT:   %n.ref.loc26_7: ref i32 = name_ref n, %n
    112. 

  112. // CHECK:STDOUT:   %.loc26_8.1: (i32, i32) = tuple_literal (%n.ref.loc26_4, %n.ref.loc26_7)
    113. 

  113. // CHECK:STDOUT:   %.loc26_13: i32 = int_literal 1 [template = constants.%.1]
    114. 

  114. // CHECK:STDOUT:   %.loc26_16: i32 = int_literal 2 [template = constants.%.2]
    115. 

  115. // CHECK:STDOUT:   %.loc26_17.1: (i32, i32) = tuple_literal (%.loc26_13, %.loc26_16)
    116. 

  116. // CHECK:STDOUT:   %.loc26_17.2: i32 = tuple_access %.loc26_8.1, element0
    117. 

  117. // CHECK:STDOUT:   %.loc26_17.3: init i32 = initialize_from %.loc26_13 to %.loc26_17.2 [template = constants.%.1]
    118. 

  118. // CHECK:STDOUT:   %.loc26_17.4: i32 = tuple_access %.loc26_8.1, element1
    119. 

  119. // CHECK:STDOUT:   %.loc26_17.5: init i32 = initialize_from %.loc26_16 to %.loc26_17.4 [template = constants.%.2]
    120. 

  120. // CHECK:STDOUT:   %.loc26_17.6: init (i32, i32) = tuple_init (%.loc26_17.3, %.loc26_17.5) to %.loc26_8.1 [template = constants.%.8]
    121. 

  121. // CHECK:STDOUT:   %.loc26_17.7: init (i32, i32) = converted %.loc26_17.1, %.loc26_17.6 [template = constants.%.8]
    122. 

  122. // CHECK:STDOUT:   assign %.loc26_8.1, %.loc26_17.7
    123. 

  123. // CHECK:STDOUT:   %.loc26_4: i32 = bind_value %n.ref.loc26_4
    124. 

  124. // CHECK:STDOUT:   %.loc26_7: i32 = bind_value %n.ref.loc26_7
    125. 

  125. // CHECK:STDOUT:   %.loc26_8.2: (i32, i32) = tuple_value (%.loc26_4, %.loc26_7)
    126. 

  126. // CHECK:STDOUT:   %.loc26_8.3: (i32, i32) = converted %.loc26_8.1, %.loc26_8.2
    127. 

  127. // CHECK:STDOUT:   %.loc30: type = ptr_type i32 [template = constants.%.10]
    128. 

  128. // CHECK:STDOUT:   assign i32, %.loc30
    129. 

  129. // CHECK:STDOUT:   %.loc34_9: i32 = int_literal 1 [template = constants.%.1]
    130. 

  130. // CHECK:STDOUT:   %.loc34_17: i32 = int_literal 2 [template = constants.%.2]
    131. 

  131. // CHECK:STDOUT:   %.loc34_18.1: {.x: i32, .y: i32} = struct_literal (%.loc34_9, %.loc34_17)
    132. 

  132. // CHECK:STDOUT:   %.loc34_28: i32 = int_literal 3 [template = constants.%.4]
    133. 

  133. // CHECK:STDOUT:   %.loc34_36: i32 = int_literal 4 [template = constants.%.5]
    134. 

  134. // CHECK:STDOUT:   %.loc34_37.1: {.x: i32, .y: i32} = struct_literal (%.loc34_28, %.loc34_36)
    135. 

  135. // CHECK:STDOUT:   %.loc34_37.2: i32 = struct_access %.loc34_18.1, element0
    136. 

  136. // CHECK:STDOUT:   %.loc34_37.3: init i32 = initialize_from %.loc34_28 to %.loc34_37.2 [template = constants.%.4]
    137. 

  137. // CHECK:STDOUT:   %.loc34_37.4: i32 = struct_access %.loc34_18.1, element1
    138. 

  138. // CHECK:STDOUT:   %.loc34_37.5: init i32 = initialize_from %.loc34_36 to %.loc34_37.4 [template = constants.%.5]
    139. 

  139. // CHECK:STDOUT:   %.loc34_37.6: init {.x: i32, .y: i32} = struct_init (%.loc34_37.3, %.loc34_37.5) to %.loc34_18.1 [template = constants.%.13]
    140. 

  140. // CHECK:STDOUT:   %.loc34_37.7: init {.x: i32, .y: i32} = converted %.loc34_37.1, %.loc34_37.6 [template = constants.%.13]
    141. 

  141. // CHECK:STDOUT:   assign %.loc34_18.1, %.loc34_37.7
    142. 

  142. // CHECK:STDOUT:   %.loc34_18.2: {.x: i32, .y: i32} = struct_value (%.loc34_9, %.loc34_17) [template = constants.%.14]
    143. 

  143. // CHECK:STDOUT:   %.loc34_18.3: {.x: i32, .y: i32} = converted %.loc34_18.1, %.loc34_18.2 [template = constants.%.14]
    144. 

  144. // CHECK:STDOUT:   %.loc38_7: bool = bool_literal true [template = constants.%.15]
    145. 

  145. // CHECK:STDOUT:   if %.loc38_7 br !if.expr.then.loc38 else br !if.expr.else.loc38
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: !if.expr.then.loc38:
    148. 

  148. // CHECK:STDOUT:   %.loc38_17: i32 = int_literal 1 [template = constants.%.1]
    149. 

  149. // CHECK:STDOUT:   br !if.expr.result.loc38(%.loc38_17)
    150. 

  150. // CHECK:STDOUT:
    151. 

  151. // CHECK:STDOUT: !if.expr.else.loc38:
    152. 

  152. // CHECK:STDOUT:   %.loc38_24: i32 = int_literal 2 [template = constants.%.2]
    153. 

  153. // CHECK:STDOUT:   br !if.expr.result.loc38(%.loc38_24)
    154. 

  154. // CHECK:STDOUT:
    155. 

  155. // CHECK:STDOUT: !if.expr.result.loc38:
    156. 

  156. // CHECK:STDOUT:   %.loc38_4: i32 = block_arg !if.expr.result.loc38
    157. 

  157. // CHECK:STDOUT:   %.loc38_29: i32 = int_literal 3 [template = constants.%.4]
    158. 

  158. // CHECK:STDOUT:   assign %.loc38_4, %.loc38_29
    159. 

  159. // CHECK:STDOUT:   %a.var: ref i32 = var a
    160. 

  160. // CHECK:STDOUT:   %a: ref i32 = bind_name a, %a.var
    161. 

  161. // CHECK:STDOUT:   %.loc45_7: bool = bool_literal true [template = constants.%.15]
    162. 

  162. // CHECK:STDOUT:   if %.loc45_7 br !if.expr.then.loc45 else br !if.expr.else.loc45
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: !if.expr.then.loc45:
    165. 

  165. // CHECK:STDOUT:   %a.ref.loc45_17: ref i32 = name_ref a, %a
    166. 

  166. // CHECK:STDOUT:   %.loc45_17: i32 = bind_value %a.ref.loc45_17
    167. 

  167. // CHECK:STDOUT:   br !if.expr.result.loc45(%.loc45_17)
    168. 

  168. // CHECK:STDOUT:
    169. 

  169. // CHECK:STDOUT: !if.expr.else.loc45:
    170. 

  170. // CHECK:STDOUT:   %a.ref.loc45_24: ref i32 = name_ref a, %a
    171. 

  171. // CHECK:STDOUT:   %.loc45_24: i32 = bind_value %a.ref.loc45_24
    172. 

  172. // CHECK:STDOUT:   br !if.expr.result.loc45(%.loc45_24)
    173. 

  173. // CHECK:STDOUT:
    174. 

  174. // CHECK:STDOUT: !if.expr.result.loc45:
    175. 

  175. // CHECK:STDOUT:   %.loc45_4: i32 = block_arg !if.expr.result.loc45
    176. 

  176. // CHECK:STDOUT:   %.loc45_29: i32 = int_literal 10 [template = constants.%.16]
    177. 

  177. // CHECK:STDOUT:   assign %.loc45_4, %.loc45_29
    178. 

  178. // CHECK:STDOUT:   return
    179. 

  179. // CHECK:STDOUT: }
    180. 

  180. // CHECK:STDOUT:
    181.