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fail_expr_category.carbon

fail_expr_category.carbon 8.3 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_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
    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
    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
    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
    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:   %Int32.type: type = fn_type @Int32 [template]
    43. 

  43. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    44. 

  44. // CHECK:STDOUT:   %Int32: %Int32.type = struct_value () [template]
    45. 

  45. // CHECK:STDOUT:   %.2: i32 = int_literal 3 [template]
    46. 

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

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

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

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

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

  51. // CHECK:STDOUT:   %.4: type = ptr_type %.3 [template]
    52. 

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

  53. // CHECK:STDOUT:   %.6: i32 = int_literal 0 [template]
    54. 

  54. // CHECK:STDOUT:   %.7: i32 = int_literal 4 [template]
    55. 

  55. // CHECK:STDOUT: }
    56. 

  56. // CHECK:STDOUT:
    57. 

  57. // CHECK:STDOUT: imports {
    58. 

  58. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    59. 

  59. // CHECK:STDOUT:     .Int32 = %import_ref
    60. 

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

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

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

  63. // CHECK:STDOUT:     import Core//prelude/operators/arithmetic
    64. 

  64. // CHECK:STDOUT:     import Core//prelude/operators/as
    65. 

  65. // CHECK:STDOUT:     import Core//prelude/operators/bitwise
    66. 

  66. // CHECK:STDOUT:     import Core//prelude/operators/comparison
    67. 

  67. // CHECK:STDOUT:     import Core//prelude/types/bool
    68. 

  68. // CHECK:STDOUT:   }
    69. 

  69. // CHECK:STDOUT:   %import_ref: %Int32.type = import_ref Core//prelude/types, inst+9, loaded [template = constants.%Int32]
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

  72. // CHECK:STDOUT: file {
    73. 

  73. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    74. 

  74. // CHECK:STDOUT:     .Core = imports.%Core
    75. 

  75. // CHECK:STDOUT:     .F = %F.decl
    76. 

  76. // CHECK:STDOUT:     .G = %G.decl
    77. 

  77. // CHECK:STDOUT:   }
    78. 

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

  79. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {
    80. 

  80. // CHECK:STDOUT:     %int.make_type_32: init type = call constants.%Int32() [template = i32]
    81. 

  81. // CHECK:STDOUT:     %.loc11_17: i32 = int_literal 3 [template = constants.%.2]
    82. 

  82. // CHECK:STDOUT:     %.loc11_12.1: type = value_of_initializer %int.make_type_32 [template = i32]
    83. 

  83. // CHECK:STDOUT:     %.loc11_12.2: type = converted %int.make_type_32, %.loc11_12.1 [template = i32]
    84. 

  84. // CHECK:STDOUT:     %.loc11_18: type = array_type %.loc11_17, i32 [template = constants.%.3]
    85. 

  85. // CHECK:STDOUT:     %return: ref %.3 = var <return slot>
    86. 

  86. // CHECK:STDOUT:   }
    87. 

  87. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
    88. 

  88. // CHECK:STDOUT:     %b.patt: %.3 = binding_pattern b
    89. 

  89. // CHECK:STDOUT:     %b.param_patt: %.3 = param_pattern %b.patt, runtime_param0
    90. 

  90. // CHECK:STDOUT:   } {
    91. 

  91. // CHECK:STDOUT:     %int.make_type_32.loc13: init type = call constants.%Int32() [template = i32]
    92. 

  92. // CHECK:STDOUT:     %.loc13_15: i32 = int_literal 3 [template = constants.%.2]
    93. 

  93. // CHECK:STDOUT:     %.loc13_10.1: type = value_of_initializer %int.make_type_32.loc13 [template = i32]
    94. 

  94. // CHECK:STDOUT:     %.loc13_10.2: type = converted %int.make_type_32.loc13, %.loc13_10.1 [template = i32]
    95. 

  95. // CHECK:STDOUT:     %.loc13_16: type = array_type %.loc13_15, i32 [template = constants.%.3]
    96. 

  96. // CHECK:STDOUT:     %param: %.3 = param runtime_param0
    97. 

  97. // CHECK:STDOUT:     %b: %.3 = bind_name b, %param
    98. 

  98. // CHECK:STDOUT:   }
    99. 

  99. // CHECK:STDOUT: }
    100. 

  100. // CHECK:STDOUT:
    101. 

  101. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
    102. 

  102. // CHECK:STDOUT:
    103. 

  103. // CHECK:STDOUT: fn @F() -> %.3;
    104. 

  104. // CHECK:STDOUT:
    105. 

  105. // CHECK:STDOUT: fn @G(%b.param_patt: %.3) {
    106. 

  106. // CHECK:STDOUT: !entry:
    107. 

  107. // CHECK:STDOUT:   %int.make_type_32.loc19: init type = call constants.%Int32() [template = i32]
    108. 

  108. // CHECK:STDOUT:   %.loc19_14.1: type = value_of_initializer %int.make_type_32.loc19 [template = i32]
    109. 

  109. // CHECK:STDOUT:   %.loc19_14.2: type = converted %int.make_type_32.loc19, %.loc19_14.1 [template = i32]
    110. 

  110. // CHECK:STDOUT:   %.loc19_14.3: type = ptr_type i32 [template = constants.%.5]
    111. 

  111. // CHECK:STDOUT:   %pb.var: ref %.5 = var pb
    112. 

  112. // CHECK:STDOUT:   %pb: ref %.5 = bind_name pb, %pb.var
    113. 

  113. // CHECK:STDOUT:   %b.ref.loc19: %.3 = name_ref b, %b
    114. 

  114. // CHECK:STDOUT:   %.loc19_21: i32 = int_literal 0 [template = constants.%.6]
    115. 

  115. // CHECK:STDOUT:   %.loc19_22.1: ref %.3 = value_as_ref %b.ref.loc19
    116. 

  116. // CHECK:STDOUT:   %.loc19_22.2: ref i32 = array_index %.loc19_22.1, %.loc19_21
    117. 

  117. // CHECK:STDOUT:   %.loc19_22.3: i32 = bind_value %.loc19_22.2
    118. 

  118. // CHECK:STDOUT:   %.loc19_18: %.5 = addr_of <error> [template = <error>]
    119. 

  119. // CHECK:STDOUT:   assign %pb.var, %.loc19_18
    120. 

  120. // CHECK:STDOUT:   %b.ref.loc24: %.3 = name_ref b, %b
    121. 

  121. // CHECK:STDOUT:   %.loc24_5: i32 = int_literal 0 [template = constants.%.6]
    122. 

  122. // CHECK:STDOUT:   %.loc24_6.1: ref %.3 = value_as_ref %b.ref.loc24
    123. 

  123. // CHECK:STDOUT:   %.loc24_6.2: ref i32 = array_index %.loc24_6.1, %.loc24_5
    124. 

  124. // CHECK:STDOUT:   %.loc24_6.3: i32 = bind_value %.loc24_6.2
    125. 

  125. // CHECK:STDOUT:   %.loc24_10: i32 = int_literal 4 [template = constants.%.7]
    126. 

  126. // CHECK:STDOUT:   assign %.loc24_6.3, %.loc24_10
    127. 

  127. // CHECK:STDOUT:   %int.make_type_32.loc32: init type = call constants.%Int32() [template = i32]
    128. 

  128. // CHECK:STDOUT:   %.loc32_14.1: type = value_of_initializer %int.make_type_32.loc32 [template = i32]
    129. 

  129. // CHECK:STDOUT:   %.loc32_14.2: type = converted %int.make_type_32.loc32, %.loc32_14.1 [template = i32]
    130. 

  130. // CHECK:STDOUT:   %.loc32_14.3: type = ptr_type i32 [template = constants.%.5]
    131. 

  131. // CHECK:STDOUT:   %pf.var: ref %.5 = var pf
    132. 

  132. // CHECK:STDOUT:   %pf: ref %.5 = bind_name pf, %pf.var
    133. 

  133. // CHECK:STDOUT:   %F.ref.loc32: %F.type = name_ref F, file.%F.decl [template = constants.%F]
    134. 

  134. // CHECK:STDOUT:   %.loc32_20.1: ref %.3 = temporary_storage
    135. 

  135. // CHECK:STDOUT:   %F.call.loc32: init %.3 = call %F.ref.loc32() to %.loc32_20.1
    136. 

  136. // CHECK:STDOUT:   %.loc32_23: i32 = int_literal 0 [template = constants.%.6]
    137. 

  137. // CHECK:STDOUT:   %.loc32_20.2: ref %.3 = temporary %.loc32_20.1, %F.call.loc32
    138. 

  138. // CHECK:STDOUT:   %.loc32_24.1: ref i32 = array_index %.loc32_20.2, %.loc32_23
    139. 

  139. // CHECK:STDOUT:   %.loc32_24.2: i32 = bind_value %.loc32_24.1
    140. 

  140. // CHECK:STDOUT:   %.loc32_18: %.5 = addr_of <error> [template = <error>]
    141. 

  141. // CHECK:STDOUT:   assign %pf.var, %.loc32_18
    142. 

  142. // CHECK:STDOUT:   %F.ref.loc36: %F.type = name_ref F, file.%F.decl [template = constants.%F]
    143. 

  143. // CHECK:STDOUT:   %.loc36_4.1: ref %.3 = temporary_storage
    144. 

  144. // CHECK:STDOUT:   %F.call.loc36: init %.3 = call %F.ref.loc36() to %.loc36_4.1
    145. 

  145. // CHECK:STDOUT:   %.loc36_7: i32 = int_literal 0 [template = constants.%.6]
    146. 

  146. // CHECK:STDOUT:   %.loc36_4.2: ref %.3 = temporary %.loc36_4.1, %F.call.loc36
    147. 

  147. // CHECK:STDOUT:   %.loc36_8.1: ref i32 = array_index %.loc36_4.2, %.loc36_7
    148. 

  148. // CHECK:STDOUT:   %.loc36_8.2: i32 = bind_value %.loc36_8.1
    149. 

  149. // CHECK:STDOUT:   %.loc36_12: i32 = int_literal 4 [template = constants.%.7]
    150. 

  150. // CHECK:STDOUT:   assign %.loc36_8.2, %.loc36_12
    151. 

  151. // CHECK:STDOUT:   return
    152. 

  152. // CHECK:STDOUT: }
    153. 

  153. // CHECK:STDOUT:
    154.