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prefer_unqualified_lookup.carbon

prefer_unqualified_lookup.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. // 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/function/call/prefer_unqualified_lookup.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/call/prefer_unqualified_lookup.carbon
    10. 

  10. 

  11. // --- prefer_unqualified_lookup.carbon
    12. 

  12. 

  13. library "[[@TEST_NAME]]";
    14. 

  14. 

  15. // F in the lexical scope.
    16. 

  16. class Class(F:! type) {
    17. 

  17.   class Inner {
    18. 

  18.     // F in a non-lexical scope.
    19. 

  19.     fn F() -> i32 { return 0; }
    20. 

  20.     fn G() -> i32;
    21. 

  21.   }
    22. 

  22. }
    23. 

  23. 

  24. fn Class(F:! type).Inner.G() -> i32 { return F(); }
    25. 

  25. 

  26. // CHECK:STDOUT: --- prefer_unqualified_lookup.carbon
    27. 

  27. // CHECK:STDOUT:
    28. 

  28. // CHECK:STDOUT: constants {
    29. 

  29. // CHECK:STDOUT:   %F.2ba: type = bind_symbolic_name F, 0 [symbolic]
    30. 

  30. // CHECK:STDOUT:   %F.patt: type = symbolic_binding_pattern F, 0 [symbolic]
    31. 

  31. // CHECK:STDOUT:   %Class.type: type = generic_class_type @Class [template]
    32. 

  32. // CHECK:STDOUT:   %Class.generic: %Class.type = struct_value () [template]
    33. 

  33. // CHECK:STDOUT:   %Class: type = class_type @Class, @Class(%F.2ba) [symbolic]
    34. 

  34. // CHECK:STDOUT:   %Inner.ed2: type = class_type @Inner [template]
    35. 

  35. // CHECK:STDOUT:   %Inner.2fe: type = class_type @Inner, @Inner(%F.2ba) [symbolic]
    36. 

  36. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    37. 

  37. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    38. 

  38. // CHECK:STDOUT:   %F.type: type = fn_type @F, @Inner(%F.2ba) [symbolic]
    39. 

  39. // CHECK:STDOUT:   %F.ee3: %F.type = struct_value () [symbolic]
    40. 

  40. // CHECK:STDOUT:   %G.type: type = fn_type @G, @Inner(%F.2ba) [symbolic]
    41. 

  41. // CHECK:STDOUT:   %G: %G.type = struct_value () [symbolic]
    42. 

  42. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [template]
    43. 

  43. // CHECK:STDOUT:   %complete_type.357: <witness> = complete_type_witness %empty_struct_type [template]
    44. 

  44. // CHECK:STDOUT:   %int_0.5c6: Core.IntLiteral = int_value 0 [template]
    45. 

  45. // CHECK:STDOUT:   %Convert.type.cd1: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    46. 

  46. // CHECK:STDOUT:   %impl_witness.5b0: <witness> = impl_witness (imports.%import_ref.723), @impl.1(%int_32) [template]
    47. 

  47. // CHECK:STDOUT:   %Convert.type.466: type = fn_type @Convert.2, @impl.1(%int_32) [template]
    48. 

  48. // CHECK:STDOUT:   %Convert.925: %Convert.type.466 = struct_value () [template]
    49. 

  49. // CHECK:STDOUT:   %Convert.bound: <bound method> = bound_method %int_0.5c6, %Convert.925 [template]
    50. 

  50. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.bound, @Convert.2(%int_32) [template]
    51. 

  51. // CHECK:STDOUT:   %int_0.f61: %i32 = int_value 0 [template]
    52. 

  52. // CHECK:STDOUT:   %F.specific_fn: <specific function> = specific_function %F.ee3, @F(%F.2ba) [symbolic]
    53. 

  53. // CHECK:STDOUT: }
    54. 

  54. // CHECK:STDOUT:
    55. 

  55. // CHECK:STDOUT: imports {
    56. 

  56. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    57. 

  57. // CHECK:STDOUT:     .Int = %import_ref.187
    58. 

  58. // CHECK:STDOUT:     .ImplicitAs = %import_ref.a69
    59. 

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

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

  61. // CHECK:STDOUT:   }
    62. 

  62. // CHECK:STDOUT: }
    63. 

  63. // CHECK:STDOUT:
    64. 

  64. // CHECK:STDOUT: file {
    65. 

  65. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    66. 

  66. // CHECK:STDOUT:     .Core = imports.%Core
    67. 

  67. // CHECK:STDOUT:     .Class = %Class.decl
    68. 

  68. // CHECK:STDOUT:   }
    69. 

  69. // CHECK:STDOUT:   %Core.import = import Core
    70. 

  70. // CHECK:STDOUT:   %Class.decl: %Class.type = class_decl @Class [template = constants.%Class.generic] {
    71. 

  71. // CHECK:STDOUT:     %F.patt.loc5_13.1: type = symbolic_binding_pattern F, 0 [symbolic = %F.patt.loc5_13.2 (constants.%F.patt)]
    72. 

  72. // CHECK:STDOUT:     %F.param_patt: type = value_param_pattern %F.patt.loc5_13.1, runtime_param<invalid> [symbolic = %F.patt.loc5_13.2 (constants.%F.patt)]
    73. 

  73. // CHECK:STDOUT:   } {
    74. 

  74. // CHECK:STDOUT:     %F.param: type = value_param runtime_param<invalid>
    75. 

  75. // CHECK:STDOUT:     %F.loc5_13.1: type = bind_symbolic_name F, 0, %F.param [symbolic = %F.loc5_13.2 (constants.%F.2ba)]
    76. 

  76. // CHECK:STDOUT:   }
    77. 

  77. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [symbolic = constants.%G] {
    78. 

  78. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    79. 

  79. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    80. 

  80. // CHECK:STDOUT:   } {
    81. 

  81. // CHECK:STDOUT:     %F.param: type = value_param runtime_param<invalid>
    82. 

  82. // CHECK:STDOUT:     %F.loc13_10: type = bind_symbolic_name F, 0, %F.param [symbolic = constants.%F.2ba]
    83. 

  83. // CHECK:STDOUT:     %int_32.loc13: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    84. 

  84. // CHECK:STDOUT:     %i32.loc13: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    85. 

  85. // CHECK:STDOUT:     %return.param.loc13: ref %i32 = out_param runtime_param0
    86. 

  86. // CHECK:STDOUT:     %return.loc13: ref %i32 = return_slot %return.param.loc13
    87. 

  87. // CHECK:STDOUT:   }
    88. 

  88. // CHECK:STDOUT: }
    89. 

  89. // CHECK:STDOUT:
    90. 

  90. // CHECK:STDOUT: generic class @Class(%F.loc5_13.1: type) {
    91. 

  91. // CHECK:STDOUT:   %F.loc5_13.2: type = bind_symbolic_name F, 0 [symbolic = %F.loc5_13.2 (constants.%F.2ba)]
    92. 

  92. // CHECK:STDOUT:   %F.patt.loc5_13.2: type = symbolic_binding_pattern F, 0 [symbolic = %F.patt.loc5_13.2 (constants.%F.patt)]
    93. 

  93. // CHECK:STDOUT:
    94. 

  94. // CHECK:STDOUT: !definition:
    95. 

  95. // CHECK:STDOUT:
    96. 

  96. // CHECK:STDOUT:   class {
    97. 

  97. // CHECK:STDOUT:     %Inner.decl: type = class_decl @Inner [template = constants.%Inner.ed2] {} {}
    98. 

  98. // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type.357]
    99. 

  99. // CHECK:STDOUT:
    100. 

  100. // CHECK:STDOUT:   !members:
    101. 

  101. // CHECK:STDOUT:     .Self = constants.%Class
    102. 

  102. // CHECK:STDOUT:     .Inner = %Inner.decl
    103. 

  103. // CHECK:STDOUT:     complete_type_witness = %complete_type
    104. 

  104. // CHECK:STDOUT:   }
    105. 

  105. // CHECK:STDOUT: }
    106. 

  106. // CHECK:STDOUT:
    107. 

  107. // CHECK:STDOUT: generic class @Inner(@Class.%F.loc5_13.1: type) {
    108. 

  108. // CHECK:STDOUT: !definition:
    109. 

  109. // CHECK:STDOUT:   %F.loc8_19.1: type = bind_symbolic_name F, 0 [symbolic = %F.loc8_19.1 (constants.%F.2ba)]
    110. 

  110. // CHECK:STDOUT:   %F.type: type = fn_type @F, @Inner(%F.loc8_19.1) [symbolic = %F.type (constants.%F.type)]
    111. 

  111. // CHECK:STDOUT:   %F.loc8_19.2: @Inner.%F.type (%F.type) = struct_value () [symbolic = %F.loc8_19.2 (constants.%F.ee3)]
    112. 

  112. // CHECK:STDOUT:   %G.type: type = fn_type @G, @Inner(%F.loc8_19.1) [symbolic = %G.type (constants.%G.type)]
    113. 

  113. // CHECK:STDOUT:   %G: @Inner.%G.type (%G.type) = struct_value () [symbolic = %G (constants.%G)]
    114. 

  114. // CHECK:STDOUT:
    115. 

  115. // CHECK:STDOUT:   class {
    116. 

  116. // CHECK:STDOUT:     %F.decl: @Inner.%F.type (%F.type) = fn_decl @F [symbolic = @Inner.%F.loc8_19.2 (constants.%F.ee3)] {
    117. 

  117. // CHECK:STDOUT:       %return.patt: %i32 = return_slot_pattern
    118. 

  118. // CHECK:STDOUT:       %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    119. 

  119. // CHECK:STDOUT:     } {
    120. 

  120. // CHECK:STDOUT:       %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    121. 

  121. // CHECK:STDOUT:       %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    122. 

  122. // CHECK:STDOUT:       %return.param: ref %i32 = out_param runtime_param0
    123. 

  123. // CHECK:STDOUT:       %return: ref %i32 = return_slot %return.param
    124. 

  124. // CHECK:STDOUT:     }
    125. 

  125. // CHECK:STDOUT:     %G.decl: @Inner.%G.type (%G.type) = fn_decl @G [symbolic = @Inner.%G (constants.%G)] {
    126. 

  126. // CHECK:STDOUT:       %return.patt: %i32 = return_slot_pattern
    127. 

  127. // CHECK:STDOUT:       %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    128. 

  128. // CHECK:STDOUT:     } {
    129. 

  129. // CHECK:STDOUT:       %int_32.loc9: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    130. 

  130. // CHECK:STDOUT:       %i32.loc9: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    131. 

  131. // CHECK:STDOUT:       %return.param.loc9: ref %i32 = out_param runtime_param0
    132. 

  132. // CHECK:STDOUT:       %return.loc9: ref %i32 = return_slot %return.param.loc9
    133. 

  133. // CHECK:STDOUT:     }
    134. 

  134. // CHECK:STDOUT:     %complete_type: <witness> = complete_type_witness %empty_struct_type [template = constants.%complete_type.357]
    135. 

  135. // CHECK:STDOUT:
    136. 

  136. // CHECK:STDOUT:   !members:
    137. 

  137. // CHECK:STDOUT:     .Self = constants.%Inner.2fe
    138. 

  138. // CHECK:STDOUT:     .F = %F.decl
    139. 

  139. // CHECK:STDOUT:     .G = %G.decl
    140. 

  140. // CHECK:STDOUT:     complete_type_witness = %complete_type
    141. 

  141. // CHECK:STDOUT:   }
    142. 

  142. // CHECK:STDOUT: }
    143. 

  143. // CHECK:STDOUT:
    144. 

  144. // CHECK:STDOUT: generic fn @F(@Class.%F.loc5_13.1: type) {
    145. 

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

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT:   fn() -> %i32 {
    148. 

  148. // CHECK:STDOUT:   !entry:
    149. 

  149. // CHECK:STDOUT:     %int_0: Core.IntLiteral = int_value 0 [template = constants.%int_0.5c6]
    150. 

  150. // CHECK:STDOUT:     %impl.elem0: %Convert.type.cd1 = impl_witness_access constants.%impl_witness.5b0, element0 [template = constants.%Convert.925]
    151. 

  151. // CHECK:STDOUT:     %Convert.bound: <bound method> = bound_method %int_0, %impl.elem0 [template = constants.%Convert.bound]
    152. 

  152. // CHECK:STDOUT:     %Convert.specific_fn: <specific function> = specific_function %Convert.bound, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn]
    153. 

  153. // CHECK:STDOUT:     %int.convert_checked: init %i32 = call %Convert.specific_fn(%int_0) [template = constants.%int_0.f61]
    154. 

  154. // CHECK:STDOUT:     %.loc8_29.1: %i32 = value_of_initializer %int.convert_checked [template = constants.%int_0.f61]
    155. 

  155. // CHECK:STDOUT:     %.loc8_29.2: %i32 = converted %int_0, %.loc8_29.1 [template = constants.%int_0.f61]
    156. 

  156. // CHECK:STDOUT:     return %.loc8_29.2
    157. 

  157. // CHECK:STDOUT:   }
    158. 

  158. // CHECK:STDOUT: }
    159. 

  159. // CHECK:STDOUT:
    160. 

  160. // CHECK:STDOUT: generic fn @G(@Class.%F.loc5_13.1: type) {
    161. 

  161. // CHECK:STDOUT: !definition:
    162. 

  162. // CHECK:STDOUT:   %F.loc13_46.1: type = bind_symbolic_name F, 0 [symbolic = %F.loc13_46.1 (constants.%F.2ba)]
    163. 

  163. // CHECK:STDOUT:   %F.type: type = fn_type @F, @Inner(%F.loc13_46.1) [symbolic = %F.type (constants.%F.type)]
    164. 

  164. // CHECK:STDOUT:   %F.loc13_46.2: @G.%F.type (%F.type) = struct_value () [symbolic = %F.loc13_46.2 (constants.%F.ee3)]
    165. 

  165. // CHECK:STDOUT:   %F.specific_fn.loc13_46.2: <specific function> = specific_function %F.loc13_46.2, @F(%F.loc13_46.1) [symbolic = %F.specific_fn.loc13_46.2 (constants.%F.specific_fn)]
    166. 

  166. // CHECK:STDOUT:
    167. 

  167. // CHECK:STDOUT:   fn() -> %i32 {
    168. 

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

  169. // CHECK:STDOUT:     %.loc13_46: @G.%F.type (%F.type) = specific_constant @Inner.%F.decl, @Inner(constants.%F.2ba) [symbolic = %F.loc13_46.2 (constants.%F.ee3)]
    170. 

  170. // CHECK:STDOUT:     %F.ref: @G.%F.type (%F.type) = name_ref F, %.loc13_46 [symbolic = %F.loc13_46.2 (constants.%F.ee3)]
    171. 

  171. // CHECK:STDOUT:     %F.specific_fn.loc13_46.1: <specific function> = specific_function %F.ref, @F(constants.%F.2ba) [symbolic = %F.specific_fn.loc13_46.2 (constants.%F.specific_fn)]
    172. 

  172. // CHECK:STDOUT:     %F.call: init %i32 = call %F.specific_fn.loc13_46.1()
    173. 

  173. // CHECK:STDOUT:     %.loc13_49.1: %i32 = value_of_initializer %F.call
    174. 

  174. // CHECK:STDOUT:     %.loc13_49.2: %i32 = converted %F.call, %.loc13_49.1
    175. 

  175. // CHECK:STDOUT:     return %.loc13_49.2
    176. 

  176. // CHECK:STDOUT:   }
    177. 

  177. // CHECK:STDOUT: }
    178. 

  178. // CHECK:STDOUT:
    179. 

  179. // CHECK:STDOUT: specific @Class(constants.%F.2ba) {
    180. 

  180. // CHECK:STDOUT:   %F.loc5_13.2 => constants.%F.2ba
    181. 

  181. // CHECK:STDOUT:   %F.patt.loc5_13.2 => constants.%F.2ba
    182. 

  182. // CHECK:STDOUT:
    183. 

  183. // CHECK:STDOUT: !definition:
    184. 

  184. // CHECK:STDOUT: }
    185. 

  185. // CHECK:STDOUT:
    186. 

  186. // CHECK:STDOUT: specific @Inner(constants.%F.2ba) {
    187. 

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

  188. // CHECK:STDOUT:   %F.loc8_19.1 => constants.%F.2ba
    189. 

  189. // CHECK:STDOUT:   %F.type => constants.%F.type
    190. 

  190. // CHECK:STDOUT:   %F.loc8_19.2 => constants.%F.ee3
    191. 

  191. // CHECK:STDOUT:   %G.type => constants.%G.type
    192. 

  192. // CHECK:STDOUT:   %G => constants.%G
    193. 

  193. // CHECK:STDOUT: }
    194. 

  194. // CHECK:STDOUT:
    195. 

  195. // CHECK:STDOUT: specific @F(constants.%F.2ba) {
    196. 

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

  197. // CHECK:STDOUT: }
    198. 

  198. // CHECK:STDOUT:
    199. 

  199. // CHECK:STDOUT: specific @G(constants.%F.2ba) {}
    200. 

  200. // CHECK:STDOUT:
    201. 

  201. // CHECK:STDOUT: specific @Inner(%F.loc8_19.1) {}
    202. 

  202. // CHECK:STDOUT:
    203. 

  203. // CHECK:STDOUT: specific @Inner(@G.%F.loc13_46.1) {}
    204. 

  204. // CHECK:STDOUT:
    205. 

  205. // CHECK:STDOUT: specific @F(@G.%F.loc13_46.1) {}
    206. 

  206. // CHECK:STDOUT:
    207.