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carbon-lang
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base.carbon

base.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. // TIP: To test this file alone, run:
    7. 

  7. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/class/base.carbon
    8. 

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

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

  10. 

  11. base class Base {
    12. 

  12.   var b: i32;
    13. 

  13. }
    14. 

  14. 

  15. class Derived {
    16. 

  16.   extend base: Base;
    17. 

  17. 

  18.   var d: i32;
    19. 

  19. }
    20. 

  20. 

  21. fn Make() -> Derived {
    22. 

  22.   return {.base = {.b = 4}, .d = 7};
    23. 

  23. }
    24. 

  24. 

  25. fn Access(d: Derived) -> (i32, i32) {
    26. 

  26.   return (d.d, d.base.b);
    27. 

  27. }
    28. 

  28. 

  29. // CHECK:STDOUT: --- base.carbon
    30. 

  30. // CHECK:STDOUT:
    31. 

  31. // CHECK:STDOUT: constants {
    32. 

  32. // CHECK:STDOUT:   %Base: type = class_type @Base [template]
    33. 

  33. // CHECK:STDOUT:   %Int32.type: type = fn_type @Int32 [template]
    34. 

  34. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    35. 

  35. // CHECK:STDOUT:   %Int32: %Int32.type = struct_value () [template]
    36. 

  36. // CHECK:STDOUT:   %.2: type = unbound_element_type %Base, i32 [template]
    37. 

  37. // CHECK:STDOUT:   %.3: type = struct_type {.b: i32} [template]
    38. 

  38. // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
    39. 

  39. // CHECK:STDOUT:   %Derived: type = class_type @Derived [template]
    40. 

  40. // CHECK:STDOUT:   %.5: type = ptr_type %.3 [template]
    41. 

  41. // CHECK:STDOUT:   %.6: type = unbound_element_type %Derived, %Base [template]
    42. 

  42. // CHECK:STDOUT:   %.7: type = unbound_element_type %Derived, i32 [template]
    43. 

  43. // CHECK:STDOUT:   %.8: type = struct_type {.base: %Base, .d: i32} [template]
    44. 

  44. // CHECK:STDOUT:   %.9: <witness> = complete_type_witness %.8 [template]
    45. 

  45. // CHECK:STDOUT:   %Make.type: type = fn_type @Make [template]
    46. 

  46. // CHECK:STDOUT:   %Make: %Make.type = struct_value () [template]
    47. 

  47. // CHECK:STDOUT:   %.10: type = struct_type {.base: %.5, .d: i32} [template]
    48. 

  48. // CHECK:STDOUT:   %.11: type = ptr_type %.10 [template]
    49. 

  49. // CHECK:STDOUT:   %.12: type = ptr_type %.8 [template]
    50. 

  50. // CHECK:STDOUT:   %.13: i32 = int_literal 4 [template]
    51. 

  51. // CHECK:STDOUT:   %.14: i32 = int_literal 7 [template]
    52. 

  52. // CHECK:STDOUT:   %.15: type = struct_type {.base: %.3, .d: i32} [template]
    53. 

  53. // CHECK:STDOUT:   %struct.1: %Base = struct_value (%.13) [template]
    54. 

  54. // CHECK:STDOUT:   %struct.2: %Derived = struct_value (%struct.1, %.14) [template]
    55. 

  55. // CHECK:STDOUT:   %.16: type = tuple_type (type, type) [template]
    56. 

  56. // CHECK:STDOUT:   %.17: type = tuple_type (i32, i32) [template]
    57. 

  57. // CHECK:STDOUT:   %Access.type: type = fn_type @Access [template]
    58. 

  58. // CHECK:STDOUT:   %Access: %Access.type = struct_value () [template]
    59. 

  59. // CHECK:STDOUT:   %.18: type = ptr_type %.17 [template]
    60. 

  60. // CHECK:STDOUT: }
    61. 

  61. // CHECK:STDOUT:
    62. 

  62. // CHECK:STDOUT: imports {
    63. 

  63. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    64. 

  64. // CHECK:STDOUT:     .Int32 = %import_ref
    65. 

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

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

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

  68. // CHECK:STDOUT:     import Core//prelude/operators/arithmetic
    69. 

  69. // CHECK:STDOUT:     import Core//prelude/operators/as
    70. 

  70. // CHECK:STDOUT:     import Core//prelude/operators/bitwise
    71. 

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

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

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT:   %import_ref: %Int32.type = import_ref Core//prelude/types, inst+9, loaded [template = constants.%Int32]
    75. 

  75. // CHECK:STDOUT: }
    76. 

  76. // CHECK:STDOUT:
    77. 

  77. // CHECK:STDOUT: file {
    78. 

  78. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    79. 

  79. // CHECK:STDOUT:     .Core = imports.%Core
    80. 

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

  81. // CHECK:STDOUT:     .Derived = %Derived.decl
    82. 

  82. // CHECK:STDOUT:     .Make = %Make.decl
    83. 

  83. // CHECK:STDOUT:     .Access = %Access.decl
    84. 

  84. // CHECK:STDOUT:   }
    85. 

  85. // CHECK:STDOUT:   %Core.import = import Core
    86. 

  86. // CHECK:STDOUT:   %Base.decl: type = class_decl @Base [template = constants.%Base] {} {}
    87. 

  87. // CHECK:STDOUT:   %Derived.decl: type = class_decl @Derived [template = constants.%Derived] {} {}
    88. 

  88. // CHECK:STDOUT:   %Make.decl: %Make.type = fn_decl @Make [template = constants.%Make] {} {
    89. 

  89. // CHECK:STDOUT:     %Derived.ref: type = name_ref Derived, file.%Derived.decl [template = constants.%Derived]
    90. 

  90. // CHECK:STDOUT:     %return: ref %Derived = var <return slot>
    91. 

  91. // CHECK:STDOUT:   }
    92. 

  92. // CHECK:STDOUT:   %Access.decl: %Access.type = fn_decl @Access [template = constants.%Access] {
    93. 

  93. // CHECK:STDOUT:     %d.patt: %Derived = binding_pattern d
    94. 

  94. // CHECK:STDOUT:     %d.param_patt: %Derived = param_pattern %d.patt, runtime_param0
    95. 

  95. // CHECK:STDOUT:   } {
    96. 

  96. // CHECK:STDOUT:     %Derived.ref: type = name_ref Derived, file.%Derived.decl [template = constants.%Derived]
    97. 

  97. // CHECK:STDOUT:     %int.make_type_32.loc25_27: init type = call constants.%Int32() [template = i32]
    98. 

  98. // CHECK:STDOUT:     %int.make_type_32.loc25_32: init type = call constants.%Int32() [template = i32]
    99. 

  99. // CHECK:STDOUT:     %.loc25_35.1: %.16 = tuple_literal (%int.make_type_32.loc25_27, %int.make_type_32.loc25_32)
    100. 

  100. // CHECK:STDOUT:     %.loc25_35.2: type = value_of_initializer %int.make_type_32.loc25_27 [template = i32]
    101. 

  101. // CHECK:STDOUT:     %.loc25_35.3: type = converted %int.make_type_32.loc25_27, %.loc25_35.2 [template = i32]
    102. 

  102. // CHECK:STDOUT:     %.loc25_35.4: type = value_of_initializer %int.make_type_32.loc25_32 [template = i32]
    103. 

  103. // CHECK:STDOUT:     %.loc25_35.5: type = converted %int.make_type_32.loc25_32, %.loc25_35.4 [template = i32]
    104. 

  104. // CHECK:STDOUT:     %.loc25_35.6: type = converted %.loc25_35.1, constants.%.17 [template = constants.%.17]
    105. 

  105. // CHECK:STDOUT:     %return: ref %.17 = var <return slot>
    106. 

  106. // CHECK:STDOUT:     %param: %Derived = param runtime_param0
    107. 

  107. // CHECK:STDOUT:     %d: %Derived = bind_name d, %param
    108. 

  108. // CHECK:STDOUT:   }
    109. 

  109. // CHECK:STDOUT: }
    110. 

  110. // CHECK:STDOUT:
    111. 

  111. // CHECK:STDOUT: class @Base {
    112. 

  112. // CHECK:STDOUT:   %int.make_type_32: init type = call constants.%Int32() [template = i32]
    113. 

  113. // CHECK:STDOUT:   %.loc12_10.1: type = value_of_initializer %int.make_type_32 [template = i32]
    114. 

  114. // CHECK:STDOUT:   %.loc12_10.2: type = converted %int.make_type_32, %.loc12_10.1 [template = i32]
    115. 

  115. // CHECK:STDOUT:   %.loc12_8: %.2 = field_decl b, element0 [template]
    116. 

  116. // CHECK:STDOUT:   %.loc13: <witness> = complete_type_witness %.3 [template = constants.%.4]
    117. 

  117. // CHECK:STDOUT:
    118. 

  118. // CHECK:STDOUT: !members:
    119. 

  119. // CHECK:STDOUT:   .Self = constants.%Base
    120. 

  120. // CHECK:STDOUT:   .b = %.loc12_8
    121. 

  121. // CHECK:STDOUT: }
    122. 

  122. // CHECK:STDOUT:
    123. 

  123. // CHECK:STDOUT: class @Derived {
    124. 

  124. // CHECK:STDOUT:   %Base.ref: type = name_ref Base, file.%Base.decl [template = constants.%Base]
    125. 

  125. // CHECK:STDOUT:   %.loc16: %.6 = base_decl %Base, element0 [template]
    126. 

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

  127. // CHECK:STDOUT:   %.loc18_10.1: type = value_of_initializer %int.make_type_32 [template = i32]
    128. 

  128. // CHECK:STDOUT:   %.loc18_10.2: type = converted %int.make_type_32, %.loc18_10.1 [template = i32]
    129. 

  129. // CHECK:STDOUT:   %.loc18_8: %.7 = field_decl d, element1 [template]
    130. 

  130. // CHECK:STDOUT:   %.loc19: <witness> = complete_type_witness %.8 [template = constants.%.9]
    131. 

  131. // CHECK:STDOUT:
    132. 

  132. // CHECK:STDOUT: !members:
    133. 

  133. // CHECK:STDOUT:   .Self = constants.%Derived
    134. 

  134. // CHECK:STDOUT:   .base = %.loc16
    135. 

  135. // CHECK:STDOUT:   .d = %.loc18_8
    136. 

  136. // CHECK:STDOUT:   extend name_scope2
    137. 

  137. // CHECK:STDOUT: }
    138. 

  138. // CHECK:STDOUT:
    139. 

  139. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
    140. 

  140. // CHECK:STDOUT:
    141. 

  141. // CHECK:STDOUT: fn @Make() -> %return: %Derived {
    142. 

  142. // CHECK:STDOUT: !entry:
    143. 

  143. // CHECK:STDOUT:   %.loc22_25: i32 = int_literal 4 [template = constants.%.13]
    144. 

  144. // CHECK:STDOUT:   %.loc22_26.1: %.3 = struct_literal (%.loc22_25)
    145. 

  145. // CHECK:STDOUT:   %.loc22_34: i32 = int_literal 7 [template = constants.%.14]
    146. 

  146. // CHECK:STDOUT:   %.loc22_35.1: %.15 = struct_literal (%.loc22_26.1, %.loc22_34)
    147. 

  147. // CHECK:STDOUT:   %.loc22_35.2: ref %Base = class_element_access %return, element0
    148. 

  148. // CHECK:STDOUT:   %.loc22_26.2: ref i32 = class_element_access %.loc22_35.2, element0
    149. 

  149. // CHECK:STDOUT:   %.loc22_26.3: init i32 = initialize_from %.loc22_25 to %.loc22_26.2 [template = constants.%.13]
    150. 

  150. // CHECK:STDOUT:   %.loc22_26.4: init %Base = class_init (%.loc22_26.3), %.loc22_35.2 [template = constants.%struct.1]
    151. 

  151. // CHECK:STDOUT:   %.loc22_35.3: init %Base = converted %.loc22_26.1, %.loc22_26.4 [template = constants.%struct.1]
    152. 

  152. // CHECK:STDOUT:   %.loc22_35.4: ref i32 = class_element_access %return, element1
    153. 

  153. // CHECK:STDOUT:   %.loc22_35.5: init i32 = initialize_from %.loc22_34 to %.loc22_35.4 [template = constants.%.14]
    154. 

  154. // CHECK:STDOUT:   %.loc22_35.6: init %Derived = class_init (%.loc22_35.3, %.loc22_35.5), %return [template = constants.%struct.2]
    155. 

  155. // CHECK:STDOUT:   %.loc22_36: init %Derived = converted %.loc22_35.1, %.loc22_35.6 [template = constants.%struct.2]
    156. 

  156. // CHECK:STDOUT:   return %.loc22_36 to %return
    157. 

  157. // CHECK:STDOUT: }
    158. 

  158. // CHECK:STDOUT:
    159. 

  159. // CHECK:STDOUT: fn @Access(%d.param_patt: %Derived) -> %return: %.17 {
    160. 

  160. // CHECK:STDOUT: !entry:
    161. 

  161. // CHECK:STDOUT:   %d.ref.loc26_11: %Derived = name_ref d, %d
    162. 

  162. // CHECK:STDOUT:   %d.ref.loc26_12: %.7 = name_ref d, @Derived.%.loc18_8 [template = @Derived.%.loc18_8]
    163. 

  163. // CHECK:STDOUT:   %.loc26_12.1: ref i32 = class_element_access %d.ref.loc26_11, element1
    164. 

  164. // CHECK:STDOUT:   %.loc26_12.2: i32 = bind_value %.loc26_12.1
    165. 

  165. // CHECK:STDOUT:   %d.ref.loc26_16: %Derived = name_ref d, %d
    166. 

  166. // CHECK:STDOUT:   %base.ref: %.6 = name_ref base, @Derived.%.loc16 [template = @Derived.%.loc16]
    167. 

  167. // CHECK:STDOUT:   %.loc26_17.1: ref %Base = class_element_access %d.ref.loc26_16, element0
    168. 

  168. // CHECK:STDOUT:   %.loc26_17.2: %Base = bind_value %.loc26_17.1
    169. 

  169. // CHECK:STDOUT:   %b.ref: %.2 = name_ref b, @Base.%.loc12_8 [template = @Base.%.loc12_8]
    170. 

  170. // CHECK:STDOUT:   %.loc26_22.1: ref i32 = class_element_access %.loc26_17.2, element0
    171. 

  171. // CHECK:STDOUT:   %.loc26_22.2: i32 = bind_value %.loc26_22.1
    172. 

  172. // CHECK:STDOUT:   %.loc26_24.1: %.17 = tuple_literal (%.loc26_12.2, %.loc26_22.2)
    173. 

  173. // CHECK:STDOUT:   %.loc26_24.2: ref i32 = tuple_access %return, element0
    174. 

  174. // CHECK:STDOUT:   %.loc26_24.3: init i32 = initialize_from %.loc26_12.2 to %.loc26_24.2
    175. 

  175. // CHECK:STDOUT:   %.loc26_24.4: ref i32 = tuple_access %return, element1
    176. 

  176. // CHECK:STDOUT:   %.loc26_24.5: init i32 = initialize_from %.loc26_22.2 to %.loc26_24.4
    177. 

  177. // CHECK:STDOUT:   %.loc26_24.6: init %.17 = tuple_init (%.loc26_24.3, %.loc26_24.5) to %return
    178. 

  178. // CHECK:STDOUT:   %.loc26_25: init %.17 = converted %.loc26_24.1, %.loc26_24.6
    179. 

  179. // CHECK:STDOUT:   return %.loc26_25 to %return
    180. 

  180. // CHECK:STDOUT: }
    181. 

  181. // CHECK:STDOUT:
    182.