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carbon-lang
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toolchain
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check
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testdata
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function
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generic
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resolve_used.carbon

resolve_used.carbon 13 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/int.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/function/generic/resolve_used.carbon
    12. 

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

  13. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/function/generic/resolve_used.carbon
    14. 

  14. 

  15. // --- fail_todo_call_monomorphization_error.carbon
    16. 

  16. 

  17. library "[[@TEST_NAME]]";
    18. 

  18. 

  19. fn ErrorIfNIsZero(N:! Core.IntLiteral()) {
    20. 

  20.   // Check that we resolve the definition of a used specific function by
    21. 

  21.   // ensuring we produce an error when doing so. Notionally this error is
    22. 

  22.   // produced as a result of instantiating the `Core.Int` template, although
    23. 

  23.   // that's not how we currently model `Core.Int`.
    24. 

  24.   // CHECK:STDERR: min_prelude/parts/int.carbon:11:9: error: integer type width of 0 is not positive [IntWidthNotPositive]
    25. 

  25.   // CHECK:STDERR:   adapt MakeInt(N);
    26. 

  26.   // CHECK:STDERR:         ^~~~~~~~~~
    27. 

  27.   // CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+3]]:17: note: in `i0` used here [ResolvingSpecificHere]
    28. 

  28.   // CHECK:STDERR:   var unused v: Core.Int(N);
    29. 

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

  30.   var unused v: Core.Int(N);
    31. 

  31. }
    32. 

  32. 

  33. fn CallNegative() {
    34. 

  34.   // CHECK:STDERR: fail_todo_call_monomorphization_error.carbon:[[@LINE+4]]:3: note: in `ErrorIfNIsZero(0)` used here [ResolvingSpecificHere]
    35. 

  35.   // CHECK:STDERR:   ErrorIfNIsZero(0);
    36. 

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

  37.   // CHECK:STDERR:
    38. 

  38.   ErrorIfNIsZero(0);
    39. 

  39. }
    40. 

  40. 

  41. // CHECK:STDOUT: --- fail_todo_call_monomorphization_error.carbon
    42. 

  42. // CHECK:STDOUT:
    43. 

  43. // CHECK:STDOUT: constants {
    44. 

  44. // CHECK:STDOUT:   %type: type = facet_type <type> [concrete]
    45. 

  45. // CHECK:STDOUT:   %.Self: %type = symbolic_binding .Self [symbolic_self]
    46. 

  46. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    47. 

  47. // CHECK:STDOUT:   %IntLiteral.type: type = fn_type @IntLiteral [concrete]
    48. 

  48. // CHECK:STDOUT:   %IntLiteral: %IntLiteral.type = struct_value () [concrete]
    49. 

  49. // CHECK:STDOUT:   %N: Core.IntLiteral = symbolic_binding N, 0 [symbolic]
    50. 

  50. // CHECK:STDOUT:   %pattern_type.dc0: type = pattern_type Core.IntLiteral [concrete]
    51. 

  51. // CHECK:STDOUT:   %ErrorIfNIsZero.type: type = fn_type @ErrorIfNIsZero [concrete]
    52. 

  52. // CHECK:STDOUT:   %ErrorIfNIsZero: %ErrorIfNIsZero.type = struct_value () [concrete]
    53. 

  53. // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
    54. 

  54. // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
    55. 

  55. // CHECK:STDOUT:   %Int: type = class_type @Int, @Int(%N) [symbolic]
    56. 

  56. // CHECK:STDOUT:   %require_complete.901: <witness> = require_complete_type %Int [symbolic]
    57. 

  57. // CHECK:STDOUT:   %pattern_type.764: type = pattern_type %Int [symbolic]
    58. 

  58. // CHECK:STDOUT:   %Destroy.type: type = facet_type <@Destroy> [concrete]
    59. 

  59. // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %Int, @Destroy [symbolic]
    60. 

  60. // CHECK:STDOUT:   %Destroy.facet.1c0: %Destroy.type = facet_value %Int, (%Destroy.lookup_impl_witness) [symbolic]
    61. 

  61. // CHECK:STDOUT:   %Destroy.WithSelf.Op.type.297: type = fn_type @Destroy.WithSelf.Op, @Destroy(%Destroy.facet.1c0) [symbolic]
    62. 

  62. // CHECK:STDOUT:   %.e63: type = fn_type_with_self_type %Destroy.WithSelf.Op.type.297, %Destroy.facet.1c0 [symbolic]
    63. 

  63. // CHECK:STDOUT:   %impl.elem0: %.e63 = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic]
    64. 

  64. // CHECK:STDOUT:   %specific_impl_fn: <specific function> = specific_impl_function %impl.elem0, @Destroy.WithSelf.Op(%Destroy.facet.1c0) [symbolic]
    65. 

  65. // CHECK:STDOUT:   %CallNegative.type: type = fn_type @CallNegative [concrete]
    66. 

  66. // CHECK:STDOUT:   %CallNegative: %CallNegative.type = struct_value () [concrete]
    67. 

  67. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
    68. 

  68. // CHECK:STDOUT:   %ErrorIfNIsZero.specific_fn: <specific function> = specific_function %ErrorIfNIsZero, @ErrorIfNIsZero(%int_0) [concrete]
    69. 

  69. // CHECK:STDOUT:   %i0: type = class_type @Int, @Int(%int_0) [concrete]
    70. 

  70. // CHECK:STDOUT:   %complete_type.d94: <witness> = complete_type_witness <error> [concrete]
    71. 

  71. // CHECK:STDOUT:   %pattern_type.47b: type = pattern_type %i0 [concrete]
    72. 

  72. // CHECK:STDOUT:   %DestroyOp.type: type = fn_type @DestroyOp [concrete]
    73. 

  73. // CHECK:STDOUT:   %DestroyOp: %DestroyOp.type = struct_value () [concrete]
    74. 

  74. // CHECK:STDOUT:   %custom_witness.809: <witness> = custom_witness (%DestroyOp), @Destroy [concrete]
    75. 

  75. // CHECK:STDOUT:   %Destroy.facet.7e1: %Destroy.type = facet_value %i0, (%custom_witness.809) [concrete]
    76. 

  76. // CHECK:STDOUT:   %Destroy.WithSelf.Op.type.e5a: type = fn_type @Destroy.WithSelf.Op, @Destroy(%Destroy.facet.7e1) [concrete]
    77. 

  77. // CHECK:STDOUT:   %.011: type = fn_type_with_self_type %Destroy.WithSelf.Op.type.e5a, %Destroy.facet.7e1 [concrete]
    78. 

  78. // CHECK:STDOUT: }
    79. 

  79. // CHECK:STDOUT:
    80. 

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

  81. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    82. 

  82. // CHECK:STDOUT:     .IntLiteral = %Core.IntLiteral
    83. 

  83. // CHECK:STDOUT:     .Int = %Core.Int
    84. 

  84. // CHECK:STDOUT:     .Destroy = %Core.Destroy
    85. 

  85. // CHECK:STDOUT:     import Core//prelude
    86. 

  86. // CHECK:STDOUT:     import Core//prelude/...
    87. 

  87. // CHECK:STDOUT:   }
    88. 

  88. // CHECK:STDOUT:   %Core.IntLiteral: %IntLiteral.type = import_ref Core//prelude/parts/int_literal, IntLiteral, loaded [concrete = constants.%IntLiteral]
    89. 

  89. // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
    90. 

  90. // CHECK:STDOUT:   %Core.Destroy: type = import_ref Core//prelude/parts/destroy, Destroy, loaded [concrete = constants.%Destroy.type]
    91. 

  91. // CHECK:STDOUT: }
    92. 

  92. // CHECK:STDOUT:
    93. 

  93. // CHECK:STDOUT: file {
    94. 

  94. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    95. 

  95. // CHECK:STDOUT:     .Core = imports.%Core
    96. 

  96. // CHECK:STDOUT:     .ErrorIfNIsZero = %ErrorIfNIsZero.decl
    97. 

  97. // CHECK:STDOUT:     .CallNegative = %CallNegative.decl
    98. 

  98. // CHECK:STDOUT:   }
    99. 

  99. // CHECK:STDOUT:   %Core.import = import Core
    100. 

  100. // CHECK:STDOUT:   %ErrorIfNIsZero.decl: %ErrorIfNIsZero.type = fn_decl @ErrorIfNIsZero [concrete = constants.%ErrorIfNIsZero] {
    101. 

  101. // CHECK:STDOUT:     %N.patt: %pattern_type.dc0 = symbolic_binding_pattern N, 0 [concrete]
    102. 

  102. // CHECK:STDOUT:   } {
    103. 

  103. // CHECK:STDOUT:     %.loc4_39.1: type = splice_block %.loc4_39.3 [concrete = Core.IntLiteral] {
    104. 

  104. // CHECK:STDOUT:       %.Self: %type = symbolic_binding .Self [symbolic_self = constants.%.Self]
    105. 

  105. // CHECK:STDOUT:       %Core.ref.loc4: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
    106. 

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

  107. // CHECK:STDOUT:       %IntLiteral.call: init type = call %IntLiteral.ref() [concrete = Core.IntLiteral]
    108. 

  108. // CHECK:STDOUT:       %.loc4_39.2: type = value_of_initializer %IntLiteral.call [concrete = Core.IntLiteral]
    109. 

  109. // CHECK:STDOUT:       %.loc4_39.3: type = converted %IntLiteral.call, %.loc4_39.2 [concrete = Core.IntLiteral]
    110. 

  110. // CHECK:STDOUT:     }
    111. 

  111. // CHECK:STDOUT:     %N.loc4_19.2: Core.IntLiteral = symbolic_binding N, 0 [symbolic = %N.loc4_19.1 (constants.%N)]
    112. 

  112. // CHECK:STDOUT:   }
    113. 

  113. // CHECK:STDOUT:   %CallNegative.decl: %CallNegative.type = fn_decl @CallNegative [concrete = constants.%CallNegative] {} {}
    114. 

  114. // CHECK:STDOUT: }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: generic fn @ErrorIfNIsZero(%N.loc4_19.2: Core.IntLiteral) {
    117. 

  117. // CHECK:STDOUT:   %N.loc4_19.1: Core.IntLiteral = symbolic_binding N, 0 [symbolic = %N.loc4_19.1 (constants.%N)]
    118. 

  118. // CHECK:STDOUT:
    119. 

  119. // CHECK:STDOUT: !definition:
    120. 

  120. // CHECK:STDOUT:   %Int.loc15_27.2: type = class_type @Int, @Int(%N.loc4_19.1) [symbolic = %Int.loc15_27.2 (constants.%Int)]
    121. 

  121. // CHECK:STDOUT:   %require_complete: <witness> = require_complete_type %Int.loc15_27.2 [symbolic = %require_complete (constants.%require_complete.901)]
    122. 

  122. // CHECK:STDOUT:   %pattern_type: type = pattern_type %Int.loc15_27.2 [symbolic = %pattern_type (constants.%pattern_type.764)]
    123. 

  123. // CHECK:STDOUT:   %Destroy.lookup_impl_witness: <witness> = lookup_impl_witness %Int.loc15_27.2, @Destroy [symbolic = %Destroy.lookup_impl_witness (constants.%Destroy.lookup_impl_witness)]
    124. 

  124. // CHECK:STDOUT:   %Destroy.facet: %Destroy.type = facet_value %Int.loc15_27.2, (%Destroy.lookup_impl_witness) [symbolic = %Destroy.facet (constants.%Destroy.facet.1c0)]
    125. 

  125. // CHECK:STDOUT:   %Destroy.WithSelf.Op.type: type = fn_type @Destroy.WithSelf.Op, @Destroy(%Destroy.facet) [symbolic = %Destroy.WithSelf.Op.type (constants.%Destroy.WithSelf.Op.type.297)]
    126. 

  126. // CHECK:STDOUT:   %.loc15_3: type = fn_type_with_self_type %Destroy.WithSelf.Op.type, %Destroy.facet [symbolic = %.loc15_3 (constants.%.e63)]
    127. 

  127. // CHECK:STDOUT:   %impl.elem0.loc15_3.2: @ErrorIfNIsZero.%.loc15_3 (%.e63) = impl_witness_access %Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc15_3.2 (constants.%impl.elem0)]
    128. 

  128. // CHECK:STDOUT:   %specific_impl_fn.loc15_3.2: <specific function> = specific_impl_function %impl.elem0.loc15_3.2, @Destroy.WithSelf.Op(%Destroy.facet) [symbolic = %specific_impl_fn.loc15_3.2 (constants.%specific_impl_fn)]
    129. 

  129. // CHECK:STDOUT:
    130. 

  130. // CHECK:STDOUT:   fn() {
    131. 

  131. // CHECK:STDOUT:   !entry:
    132. 

  132. // CHECK:STDOUT:     name_binding_decl {
    133. 

  133. // CHECK:STDOUT:       %v.patt: @ErrorIfNIsZero.%pattern_type (%pattern_type.764) = ref_binding_pattern v [concrete]
    134. 

  134. // CHECK:STDOUT:       %v.var_patt: @ErrorIfNIsZero.%pattern_type (%pattern_type.764) = var_pattern %v.patt [concrete]
    135. 

  135. // CHECK:STDOUT:     }
    136. 

  136. // CHECK:STDOUT:     %v.var: ref @ErrorIfNIsZero.%Int.loc15_27.2 (%Int) = var %v.var_patt
    137. 

  137. // CHECK:STDOUT:     %.loc15_27: type = splice_block %Int.loc15_27.1 [symbolic = %Int.loc15_27.2 (constants.%Int)] {
    138. 

  138. // CHECK:STDOUT:       %Core.ref.loc15: <namespace> = name_ref Core, imports.%Core [concrete = imports.%Core]
    139. 

  139. // CHECK:STDOUT:       %Int.ref: %Int.type = name_ref Int, imports.%Core.Int [concrete = constants.%Int.generic]
    140. 

  140. // CHECK:STDOUT:       %N.ref: Core.IntLiteral = name_ref N, %N.loc4_19.2 [symbolic = %N.loc4_19.1 (constants.%N)]
    141. 

  141. // CHECK:STDOUT:       %Int.loc15_27.1: type = class_type @Int, @Int(constants.%N) [symbolic = %Int.loc15_27.2 (constants.%Int)]
    142. 

  142. // CHECK:STDOUT:     }
    143. 

  143. // CHECK:STDOUT:     %v: ref @ErrorIfNIsZero.%Int.loc15_27.2 (%Int) = ref_binding v, %v.var
    144. 

  144. // CHECK:STDOUT:     %impl.elem0.loc15_3.1: @ErrorIfNIsZero.%.loc15_3 (%.e63) = impl_witness_access constants.%Destroy.lookup_impl_witness, element0 [symbolic = %impl.elem0.loc15_3.2 (constants.%impl.elem0)]
    145. 

  145. // CHECK:STDOUT:     %bound_method.loc15_3.1: <bound method> = bound_method %v.var, %impl.elem0.loc15_3.1
    146. 

  146. // CHECK:STDOUT:     %specific_impl_fn.loc15_3.1: <specific function> = specific_impl_function %impl.elem0.loc15_3.1, @Destroy.WithSelf.Op(constants.%Destroy.facet.1c0) [symbolic = %specific_impl_fn.loc15_3.2 (constants.%specific_impl_fn)]
    147. 

  147. // CHECK:STDOUT:     %bound_method.loc15_3.2: <bound method> = bound_method %v.var, %specific_impl_fn.loc15_3.1
    148. 

  148. // CHECK:STDOUT:     %Destroy.WithSelf.Op.call: init %empty_tuple.type = call %bound_method.loc15_3.2(%v.var)
    149. 

  149. // CHECK:STDOUT:     return
    150. 

  150. // CHECK:STDOUT:   }
    151. 

  151. // CHECK:STDOUT: }
    152. 

  152. // CHECK:STDOUT:
    153. 

  153. // CHECK:STDOUT: fn @CallNegative() {
    154. 

  154. // CHECK:STDOUT: !entry:
    155. 

  155. // CHECK:STDOUT:   %ErrorIfNIsZero.ref: %ErrorIfNIsZero.type = name_ref ErrorIfNIsZero, file.%ErrorIfNIsZero.decl [concrete = constants.%ErrorIfNIsZero]
    156. 

  156. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
    157. 

  157. // CHECK:STDOUT:   %ErrorIfNIsZero.specific_fn: <specific function> = specific_function %ErrorIfNIsZero.ref, @ErrorIfNIsZero(constants.%int_0) [concrete = constants.%ErrorIfNIsZero.specific_fn]
    158. 

  158. // CHECK:STDOUT:   %ErrorIfNIsZero.call: init %empty_tuple.type = call %ErrorIfNIsZero.specific_fn()
    159. 

  159. // CHECK:STDOUT:   return
    160. 

  160. // CHECK:STDOUT: }
    161. 

  161. // CHECK:STDOUT:
    162. 

  162. // CHECK:STDOUT: fn @DestroyOp(%self.param: ref %i0) = "no_op";
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: specific @ErrorIfNIsZero(constants.%N) {
    165. 

  165. // CHECK:STDOUT:   %N.loc4_19.1 => constants.%N
    166. 

  166. // CHECK:STDOUT: }
    167. 

  167. // CHECK:STDOUT:
    168. 

  168. // CHECK:STDOUT: specific @ErrorIfNIsZero(constants.%int_0) {
    169. 

  169. // CHECK:STDOUT:   %N.loc4_19.1 => constants.%int_0
    170. 

  170. // CHECK:STDOUT:
    171. 

  171. // CHECK:STDOUT: !definition:
    172. 

  172. // CHECK:STDOUT:   %Int.loc15_27.2 => constants.%i0
    173. 

  173. // CHECK:STDOUT:   %require_complete => constants.%complete_type.d94
    174. 

  174. // CHECK:STDOUT:   %pattern_type => constants.%pattern_type.47b
    175. 

  175. // CHECK:STDOUT:   %Destroy.lookup_impl_witness => constants.%custom_witness.809
    176. 

  176. // CHECK:STDOUT:   %Destroy.facet => constants.%Destroy.facet.7e1
    177. 

  177. // CHECK:STDOUT:   %Destroy.WithSelf.Op.type => constants.%Destroy.WithSelf.Op.type.e5a
    178. 

  178. // CHECK:STDOUT:   %.loc15_3 => constants.%.011
    179. 

  179. // CHECK:STDOUT:   %impl.elem0.loc15_3.2 => constants.%DestroyOp
    180. 

  180. // CHECK:STDOUT:   %specific_impl_fn.loc15_3.2 => constants.%DestroyOp
    181. 

  181. // CHECK:STDOUT: }
    182. 

  182. // CHECK:STDOUT:
    183.