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context_main.carbon

context_main.carbon 20 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. package ExplorerTest api;
    6. 

  6. 

  7. interface TestInterface {}
    8. 

  8. 

  9. fn Main() -> i32 {
    10. 

  10.   return 0;
    11. 

  11. }
    12. 

  12. 

  13. // Place checks after code so that line numbers are stable, reducing merge
    14. 

  14. // conflicts.
    15. 

  15. // ARGS: --trace_file=- --trace_phase=all --trace_file_context=main %s
    16. 

  16. // AUTOUPDATE
    17. 

  17. 

  18. // CHECK:STDOUT: * * * * * * * * * *  source program  * * * * * * * * * *
    19. 

  19. // CHECK:STDOUT: --------------------------------------------------------
    20. 

  20. // CHECK:STDOUT: interface TestInterface {
    21. 

  21. // CHECK:STDOUT: }
    22. 

  22. // CHECK:STDOUT:
    23. 

  23. // CHECK:STDOUT: fn Main () -> i32
    24. 

  24. // CHECK:STDOUT: {
    25. 

  25. // CHECK:STDOUT:   return 0;
    26. 

  26. // CHECK:STDOUT: }
    27. 

  27. // CHECK:STDOUT:
    28. 

  28. // CHECK:STDOUT:
    29. 

  29. // CHECK:STDOUT: * * * * * * * * * *  resolving names  * * * * * * * * * *
    30. 

  30. // CHECK:STDOUT: ---------------------------------------------------------
    31. 

  31. // CHECK:STDOUT: ==> declared `TestInterface` as `interface TestInterface` in `package` (context_main.carbon:7)
    32. 

  32. // CHECK:STDOUT: ==> declared `Main` as `fn Main` in `package` (context_main.carbon:11)
    33. 

  33. // CHECK:STDOUT: ->> resolving decl `interface TestInterface` (context_main.carbon:7)
    34. 

  34. // CHECK:STDOUT: ==> marked `TestInterface` declared but not usable in `package`
    35. 

  35. // CHECK:STDOUT: ==> marked `TestInterface` usable in `package`
    36. 

  36. // CHECK:STDOUT: ==> declared `Self` as `Self` in `interface TestInterface` (context_main.carbon:7)
    37. 

  37. // CHECK:STDOUT: <<- finished resolving decl `interface TestInterface` (context_main.carbon:7)
    38. 

  38. // CHECK:STDOUT: ->> resolving decl `fn Main` (context_main.carbon:11)
    39. 

  39. // CHECK:STDOUT: ==> marked `Main` declared but not usable in `package`
    40. 

  40. // CHECK:STDOUT: ==> marked `Main` usable in `package`
    41. 

  41. // CHECK:STDOUT: ->> resolving stmt `{ ... }` (context_main.carbon:11)
    42. 

  42. // CHECK:STDOUT: ->> resolving stmt `return ...;` (context_main.carbon:10)
    43. 

  43. // CHECK:STDOUT: <<- finished resolving stmt `return ...;` (context_main.carbon:10)
    44. 

  44. // CHECK:STDOUT: <<- finished resolving stmt `{ ... }` (context_main.carbon:11)
    45. 

  45. // CHECK:STDOUT: <<- finished resolving decl `fn Main` (context_main.carbon:11)
    46. 

  46. // CHECK:STDOUT: ==> resolved `Main` as `fn Main` in `package` (<Main()>:0)
    47. 

  47. // CHECK:STDOUT:
    48. 

  48. // CHECK:STDOUT:
    49. 

  49. // CHECK:STDOUT: * * * * * * * * * *  resolving control flow  * * * * * * * * * *
    50. 

  50. // CHECK:STDOUT: ----------------------------------------------------------------
    51. 

  51. // CHECK:STDOUT: ==> flow-resolved return statement `return 0;` in `fn Main` (context_main.carbon:10)
    52. 

  52. // CHECK:STDOUT:
    53. 

  53. // CHECK:STDOUT:
    54. 

  54. // CHECK:STDOUT: * * * * * * * * * *  type checking  * * * * * * * * * *
    55. 

  55. // CHECK:STDOUT: -------------------------------------------------------
    56. 

  56. // CHECK:STDOUT:
    57. 

  57. // CHECK:STDOUT: *** declaration at (context_main.carbon:7)
    58. 

  58. // CHECK:STDOUT: ```
    59. 

  59. // CHECK:STDOUT: interface TestInterface {
    60. 

  60. // CHECK:STDOUT: }
    61. 

  61. // CHECK:STDOUT: ```
    62. 

  62. // CHECK:STDOUT: ->> declaring `interface TestInterface` (context_main.carbon:7)
    63. 

  63. // CHECK:STDOUT: <<- finished declaring `interface TestInterface` (context_main.carbon:7)
    64. 

  64. // CHECK:STDOUT:
    65. 

  65. // CHECK:STDOUT: *** type checking declaration at (context_main.carbon:7)
    66. 

  66. // CHECK:STDOUT: ```
    67. 

  67. // CHECK:STDOUT: interface TestInterface {
    68. 

  68. // CHECK:STDOUT: }
    69. 

  69. // CHECK:STDOUT: ```
    70. 

  70. // CHECK:STDOUT: ->> checking InterfaceDeclaration `interface TestInterface` (context_main.carbon:7)
    71. 

  71. // CHECK:STDOUT: ->> checking `interface TestInterface` (context_main.carbon:7)
    72. 

  72. // CHECK:STDOUT: ==> impl declarations for `interface TestInterface` (context_main.carbon:7)
    73. 

  73. // CHECK:STDOUT:     []
    74. 

  74. // CHECK:STDOUT:     [`bool` as `interface EqWith(U = bool)`,
    75. 

  75. // CHECK:STDOUT:     `i32` as `interface EqWith(U = i32)`,
    76. 

  76. // CHECK:STDOUT:     `String` as `interface EqWith(U = String)`,
    77. 

  77. // CHECK:STDOUT:     `i32` as `interface CompareWith(U = i32)`,
    78. 

  78. // CHECK:STDOUT:     `String` as `interface CompareWith(U = String)`,
    79. 

  79. // CHECK:STDOUT:     `i32` as `interface LessWith(U = i32)`,
    80. 

  80. // CHECK:STDOUT:     `String` as `interface LessWith(U = String)`,
    81. 

  81. // CHECK:STDOUT:     `i32` as `interface LessEqWith(U = i32)`,
    82. 

  82. // CHECK:STDOUT:     `String` as `interface LessEqWith(U = String)`,
    83. 

  83. // CHECK:STDOUT:     `i32` as `interface GreaterWith(U = i32)`,
    84. 

  84. // CHECK:STDOUT:     `String` as `interface GreaterWith(U = String)`,
    85. 

  85. // CHECK:STDOUT:     `i32` as `interface GreaterEqWith(U = i32)`,
    86. 

  86. // CHECK:STDOUT:     `String` as `interface GreaterEqWith(U = String)`,
    87. 

  87. // CHECK:STDOUT:     `i32` as `interface Negate`,
    88. 

  88. // CHECK:STDOUT:     `i32` as `interface AddWith(U = i32)`,
    89. 

  89. // CHECK:STDOUT:     `i32` as `interface SubWith(U = i32)`,
    90. 

  90. // CHECK:STDOUT:     `i32` as `interface MulWith(U = i32)`,
    91. 

  91. // CHECK:STDOUT:     `i32` as `interface DivWith(U = i32)`,
    92. 

  92. // CHECK:STDOUT:     `i32` as `interface ModWith(U = i32)`,
    93. 

  93. // CHECK:STDOUT:     `i32` as `interface BitComplement`,
    94. 

  94. // CHECK:STDOUT:     `i32` as `interface BitAndWith(U = i32)`,
    95. 

  95. // CHECK:STDOUT:     `i32` as `interface BitOrWith(U = i32)`,
    96. 

  96. // CHECK:STDOUT:     `i32` as `interface BitXorWith(U = i32)`,
    97. 

  97. // CHECK:STDOUT:     `i32` as `interface LeftShiftWith(U = i32)`,
    98. 

  98. // CHECK:STDOUT:     `i32` as `interface RightShiftWith(U = i32)`,
    99. 

  99. // CHECK:STDOUT:     `i32` as `interface Inc`,
    100. 

  100. // CHECK:STDOUT:     `i32` as `interface Dec`,
    101. 

  101. // CHECK:STDOUT:     `U` as `interface __EqualConverter` [0],
    102. 

  102. // CHECK:STDOUT:     `(T1,)` as `interface As(T = (U1,))` [0, 0, 0; 1, 1, 0, 0, 0],
    103. 

  103. // CHECK:STDOUT:     `(T1, T2)` as `interface As(T = (U1, U2))` [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1],
    104. 

  104. // CHECK:STDOUT:     `(T1, U1)` as `interface EqWith(U = (T2, U2))` [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1],
    105. 

  105. // CHECK:STDOUT:     `(T1, T2, T3)` as `interface As(T = (U1, U2, U3))` [0, 0, 0; 0, 0, 1; 0, 0, 2; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1; 1, 1, 0, 0, 2],
    106. 

  106. // CHECK:STDOUT:     `T` as `interface ImplicitAs(T = U)` [0; 1, 1, 0],
    107. 

  107. // CHECK:STDOUT:     `T` as `interface As(T = U)` [0; 1, 1, 0],
    108. 

  108. // CHECK:STDOUT:     `T` as `interface ImplicitAs(T = U)` [0; 1, 1, 0],
    109. 

  109. // CHECK:STDOUT:     `T` as `interface As(T = U)` [0; 1, 1, 0],
    110. 

  110. // CHECK:STDOUT:     `T` as `interface AssignWith(U = U)` [0; 1, 1, 0],
    111. 

  111. // CHECK:STDOUT:     `T` as `interface AddAssignWith(U = U)` [0; 1, 1, 0],
    112. 

  112. // CHECK:STDOUT:     `T` as `interface SubAssignWith(U = U)` [0; 1, 1, 0],
    113. 

  113. // CHECK:STDOUT:     `T` as `interface MulAssignWith(U = U)` [0; 1, 1, 0],
    114. 

  114. // CHECK:STDOUT:     `T` as `interface DivAssignWith(U = U)` [0; 1, 1, 0],
    115. 

  115. // CHECK:STDOUT:     `T` as `interface ModAssignWith(U = U)` [0; 1, 1, 0],
    116. 

  116. // CHECK:STDOUT:     `T` as `interface BitAndAssignWith(U = U)` [0; 1, 1, 0],
    117. 

  117. // CHECK:STDOUT:     `T` as `interface BitOrAssignWith(U = U)` [0; 1, 1, 0],
    118. 

  118. // CHECK:STDOUT:     `T` as `interface BitXorAssignWith(U = U)` [0; 1, 1, 0],
    119. 

  119. // CHECK:STDOUT:     `T` as `interface LeftShiftAssignWith(U = U)` [0; 1, 1, 0],
    120. 

  120. // CHECK:STDOUT:     `T` as `interface RightShiftAssignWith(U = U)` [0; 1, 1, 0]]
    121. 

  121. // CHECK:STDOUT: <<- finished checking `interface TestInterface` (context_main.carbon:7)
    122. 

  122. // CHECK:STDOUT:
    123. 

  123. // CHECK:STDOUT: *** declaration at (context_main.carbon:11)
    124. 

  124. // CHECK:STDOUT: ```
    125. 

  125. // CHECK:STDOUT: fn Main () -> i32
    126. 

  126. // CHECK:STDOUT: {
    127. 

  127. // CHECK:STDOUT:   return 0;
    128. 

  128. // CHECK:STDOUT: }
    129. 

  129. // CHECK:STDOUT: ```
    130. 

  130. // CHECK:STDOUT: ->> declaring function `Main` (context_main.carbon:11)
    131. 

  131. // CHECK:STDOUT: ->> checking TuplePattern `()` (context_main.carbon:9)
    132. 

  132. // CHECK:STDOUT: ->> checking IntTypeLiteral `i32` (context_main.carbon:9)
    133. 

  133. // CHECK:STDOUT: >[] stack-push: ValueExpressionAction pos: 0 `i32` (context_main.carbon:9)
    134. 

  134. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 0 `i32` (context_main.carbon:9) --->
    135. 

  135. // CHECK:STDOUT: >[] stack-push: ExpressionAction pos: 0 `i32` (context_main.carbon:9)
    136. 

  136. // CHECK:STDOUT: ->> step ExpressionAction pos: 0 `i32` (context_main.carbon:9) --->
    137. 

  137. // CHECK:STDOUT: <[] stack-pop:  ExpressionAction pos: 0 `i32` (context_main.carbon:9)
    138. 

  138. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 1 `i32` results: [`i32`]  (context_main.carbon:9) --->
    139. 

  139. // CHECK:STDOUT: <[] stack-pop:  ValueExpressionAction pos: 1 `i32` results: [`i32`]  (context_main.carbon:9)
    140. 

  140. // CHECK:STDOUT: ->> finished declaring function `Main` of type `fn () -> i32` (context_main.carbon:11)
    141. 

  141. // CHECK:STDOUT:
    142. 

  142. // CHECK:STDOUT: *** type checking declaration at (context_main.carbon:11)
    143. 

  143. // CHECK:STDOUT: ```
    144. 

  144. // CHECK:STDOUT: fn Main () -> i32
    145. 

  145. // CHECK:STDOUT: {
    146. 

  146. // CHECK:STDOUT:   return 0;
    147. 

  147. // CHECK:STDOUT: }
    148. 

  148. // CHECK:STDOUT: ```
    149. 

  149. // CHECK:STDOUT: ->> checking FunctionDeclaration `fn Main` (context_main.carbon:11)
    150. 

  150. // CHECK:STDOUT: ->> checking function `Main` (context_main.carbon:11)
    151. 

  151. // CHECK:STDOUT: ==> impl declarations for `fn Main` (context_main.carbon:11)
    152. 

  152. // CHECK:STDOUT:     []
    153. 

  153. // CHECK:STDOUT:     [`bool` as `interface EqWith(U = bool)`,
    154. 

  154. // CHECK:STDOUT:     `i32` as `interface EqWith(U = i32)`,
    155. 

  155. // CHECK:STDOUT:     `String` as `interface EqWith(U = String)`,
    156. 

  156. // CHECK:STDOUT:     `i32` as `interface CompareWith(U = i32)`,
    157. 

  157. // CHECK:STDOUT:     `String` as `interface CompareWith(U = String)`,
    158. 

  158. // CHECK:STDOUT:     `i32` as `interface LessWith(U = i32)`,
    159. 

  159. // CHECK:STDOUT:     `String` as `interface LessWith(U = String)`,
    160. 

  160. // CHECK:STDOUT:     `i32` as `interface LessEqWith(U = i32)`,
    161. 

  161. // CHECK:STDOUT:     `String` as `interface LessEqWith(U = String)`,
    162. 

  162. // CHECK:STDOUT:     `i32` as `interface GreaterWith(U = i32)`,
    163. 

  163. // CHECK:STDOUT:     `String` as `interface GreaterWith(U = String)`,
    164. 

  164. // CHECK:STDOUT:     `i32` as `interface GreaterEqWith(U = i32)`,
    165. 

  165. // CHECK:STDOUT:     `String` as `interface GreaterEqWith(U = String)`,
    166. 

  166. // CHECK:STDOUT:     `i32` as `interface Negate`,
    167. 

  167. // CHECK:STDOUT:     `i32` as `interface AddWith(U = i32)`,
    168. 

  168. // CHECK:STDOUT:     `i32` as `interface SubWith(U = i32)`,
    169. 

  169. // CHECK:STDOUT:     `i32` as `interface MulWith(U = i32)`,
    170. 

  170. // CHECK:STDOUT:     `i32` as `interface DivWith(U = i32)`,
    171. 

  171. // CHECK:STDOUT:     `i32` as `interface ModWith(U = i32)`,
    172. 

  172. // CHECK:STDOUT:     `i32` as `interface BitComplement`,
    173. 

  173. // CHECK:STDOUT:     `i32` as `interface BitAndWith(U = i32)`,
    174. 

  174. // CHECK:STDOUT:     `i32` as `interface BitOrWith(U = i32)`,
    175. 

  175. // CHECK:STDOUT:     `i32` as `interface BitXorWith(U = i32)`,
    176. 

  176. // CHECK:STDOUT:     `i32` as `interface LeftShiftWith(U = i32)`,
    177. 

  177. // CHECK:STDOUT:     `i32` as `interface RightShiftWith(U = i32)`,
    178. 

  178. // CHECK:STDOUT:     `i32` as `interface Inc`,
    179. 

  179. // CHECK:STDOUT:     `i32` as `interface Dec`,
    180. 

  180. // CHECK:STDOUT:     `U` as `interface __EqualConverter` [0],
    181. 

  181. // CHECK:STDOUT:     `(T1,)` as `interface As(T = (U1,))` [0, 0, 0; 1, 1, 0, 0, 0],
    182. 

  182. // CHECK:STDOUT:     `(T1, T2)` as `interface As(T = (U1, U2))` [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1],
    183. 

  183. // CHECK:STDOUT:     `(T1, U1)` as `interface EqWith(U = (T2, U2))` [0, 0, 0; 0, 0, 1; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1],
    184. 

  184. // CHECK:STDOUT:     `(T1, T2, T3)` as `interface As(T = (U1, U2, U3))` [0, 0, 0; 0, 0, 1; 0, 0, 2; 1, 1, 0, 0, 0; 1, 1, 0, 0, 1; 1, 1, 0, 0, 2],
    185. 

  185. // CHECK:STDOUT:     `T` as `interface ImplicitAs(T = U)` [0; 1, 1, 0],
    186. 

  186. // CHECK:STDOUT:     `T` as `interface As(T = U)` [0; 1, 1, 0],
    187. 

  187. // CHECK:STDOUT:     `T` as `interface ImplicitAs(T = U)` [0; 1, 1, 0],
    188. 

  188. // CHECK:STDOUT:     `T` as `interface As(T = U)` [0; 1, 1, 0],
    189. 

  189. // CHECK:STDOUT:     `T` as `interface AssignWith(U = U)` [0; 1, 1, 0],
    190. 

  190. // CHECK:STDOUT:     `T` as `interface AddAssignWith(U = U)` [0; 1, 1, 0],
    191. 

  191. // CHECK:STDOUT:     `T` as `interface SubAssignWith(U = U)` [0; 1, 1, 0],
    192. 

  192. // CHECK:STDOUT:     `T` as `interface MulAssignWith(U = U)` [0; 1, 1, 0],
    193. 

  193. // CHECK:STDOUT:     `T` as `interface DivAssignWith(U = U)` [0; 1, 1, 0],
    194. 

  194. // CHECK:STDOUT:     `T` as `interface ModAssignWith(U = U)` [0; 1, 1, 0],
    195. 

  195. // CHECK:STDOUT:     `T` as `interface BitAndAssignWith(U = U)` [0; 1, 1, 0],
    196. 

  196. // CHECK:STDOUT:     `T` as `interface BitOrAssignWith(U = U)` [0; 1, 1, 0],
    197. 

  197. // CHECK:STDOUT:     `T` as `interface BitXorAssignWith(U = U)` [0; 1, 1, 0],
    198. 

  198. // CHECK:STDOUT:     `T` as `interface LeftShiftAssignWith(U = U)` [0; 1, 1, 0],
    199. 

  199. // CHECK:STDOUT:     `T` as `interface RightShiftAssignWith(U = U)` [0; 1, 1, 0]]
    200. 

  200. // CHECK:STDOUT:
    201. 

  201. // CHECK:STDOUT: *** type checking stmt at (context_main.carbon:11)
    202. 

  202. // CHECK:STDOUT: ```
    203. 

  203. // CHECK:STDOUT: {
    204. 

  204. // CHECK:STDOUT:   return 0;
    205. 

  205. // CHECK:STDOUT: }
    206. 

  206. // CHECK:STDOUT: ```
    207. 

  207. // CHECK:STDOUT: ->> checking Block `{ ... }` (context_main.carbon:11)
    208. 

  208. // CHECK:STDOUT:
    209. 

  209. // CHECK:STDOUT: *** type checking stmt at (context_main.carbon:10)
    210. 

  210. // CHECK:STDOUT: ```
    211. 

  211. // CHECK:STDOUT: return 0;
    212. 

  212. // CHECK:STDOUT: ```
    213. 

  213. // CHECK:STDOUT: ->> checking ReturnExpression `return ...;` (context_main.carbon:10)
    214. 

  214. // CHECK:STDOUT: ->> checking IntLiteral `0` (context_main.carbon:10)
    215. 

  215. // CHECK:STDOUT: ->> finished checking function `Main` (context_main.carbon:11)
    216. 

  216. // CHECK:STDOUT: ->> checking CallExpression `Main()` (<Main()>:0)
    217. 

  217. // CHECK:STDOUT: ->> checking IdentifierExpression `Main` (<Main()>:0)
    218. 

  218. // CHECK:STDOUT: ->> checking TupleLiteral `()` (<Main()>:0)
    219. 

  219. // CHECK:STDOUT: ->> checking call to function of type `fn () -> i32` with arguments of type `()` (<Main()>:0)
    220. 

  220. // CHECK:STDOUT: ->> performing argument deduction for bindings: []
    221. 

  221. // CHECK:STDOUT: ==> deduction succeeded with results: []
    222. 

  222. // CHECK:STDOUT:
    223. 

  223. // CHECK:STDOUT:
    224. 

  224. // CHECK:STDOUT: * * * * * * * * * *  resolving unformed variables  * * * * * * * * * *
    225. 

  225. // CHECK:STDOUT: ----------------------------------------------------------------------
    226. 

  226. // CHECK:STDOUT: ->> resolving-unformed in decl `interface TestInterface` (context_main.carbon:7)
    227. 

  227. // CHECK:STDOUT: ->> resolving-unformed in decl `fn Main` (context_main.carbon:11)
    228. 

  228. // CHECK:STDOUT: ->> resolving-unformed in stmt `{ ... }` (context_main.carbon:11)
    229. 

  229. // CHECK:STDOUT: ->> resolving-unformed in stmt `return ...;` (context_main.carbon:10)
    230. 

  230. // CHECK:STDOUT:
    231. 

  231. // CHECK:STDOUT:
    232. 

  232. // CHECK:STDOUT: * * * * * * * * * *  printing declarations  * * * * * * * * * *
    233. 

  233. // CHECK:STDOUT: ---------------------------------------------------------------
    234. 

  234. // CHECK:STDOUT: interface TestInterface {
    235. 

  235. // CHECK:STDOUT: }
    236. 

  236. // CHECK:STDOUT:
    237. 

  237. // CHECK:STDOUT: fn Main () -> i32
    238. 

  238. // CHECK:STDOUT: {
    239. 

  239. // CHECK:STDOUT:   return 0;
    240. 

  240. // CHECK:STDOUT: }
    241. 

  241. // CHECK:STDOUT:
    242. 

  242. // CHECK:STDOUT:
    243. 

  243. // CHECK:STDOUT: * * * * * * * * * *  starting execution  * * * * * * * * * *
    244. 

  244. // CHECK:STDOUT: ------------------------------------------------------------
    245. 

  245. // CHECK:STDOUT:
    246. 

  246. // CHECK:STDOUT: - - - - -  initializing globals  - - - - -
    247. 

  247. // CHECK:STDOUT: ------------------------------------------
    248. 

  248. // CHECK:STDOUT: >[] stack-push: DeclarationAction pos: 0 `interface TestInterface` (context_main.carbon:7)
    249. 

  249. // CHECK:STDOUT: ->> step DeclarationAction pos: 0 `interface TestInterface` (context_main.carbon:7) --->
    250. 

  250. // CHECK:STDOUT:
    251. 

  251. // CHECK:STDOUT: *** declaration at (context_main.carbon:7)
    252. 

  252. // CHECK:STDOUT: ```
    253. 

  253. // CHECK:STDOUT: interface TestInterface {
    254. 

  254. // CHECK:STDOUT: }
    255. 

  255. // CHECK:STDOUT: ```
    256. 

  256. // CHECK:STDOUT: <[] stack-pop:  DeclarationAction pos: 0 `interface TestInterface` (context_main.carbon:7)
    257. 

  257. // CHECK:STDOUT: >[] stack-push: DeclarationAction pos: 0 `fn Main` (context_main.carbon:11)
    258. 

  258. // CHECK:STDOUT: ->> step DeclarationAction pos: 0 `fn Main` (context_main.carbon:11) --->
    259. 

  259. // CHECK:STDOUT:
    260. 

  260. // CHECK:STDOUT: *** declaration at (context_main.carbon:11)
    261. 

  261. // CHECK:STDOUT: ```
    262. 

  262. // CHECK:STDOUT: fn Main () -> i32
    263. 

  263. // CHECK:STDOUT: {
    264. 

  264. // CHECK:STDOUT:   return 0;
    265. 

  265. // CHECK:STDOUT: }
    266. 

  266. // CHECK:STDOUT: ```
    267. 

  267. // CHECK:STDOUT: <[] stack-pop:  DeclarationAction pos: 0 `fn Main` (context_main.carbon:11)
    268. 

  268. // CHECK:STDOUT:
    269. 

  269. // CHECK:STDOUT: - - - - -  calling main function  - - - - -
    270. 

  270. // CHECK:STDOUT: -------------------------------------------
    271. 

  271. // CHECK:STDOUT: >[] stack-push: ValueExpressionAction pos: 0 `Main()` (<Main()>:0)
    272. 

  272. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 0 `Main()` (<Main()>:0) --->
    273. 

  273. // CHECK:STDOUT: >[] stack-push: ExpressionAction pos: 0 `Main()` (<Main()>:0)
    274. 

  274. // CHECK:STDOUT: ->> step ExpressionAction pos: 0 `Main()` (<Main()>:0) --->
    275. 

  275. // CHECK:STDOUT: >[] stack-push: ValueExpressionAction pos: 0 `Main` (<Main()>:0)
    276. 

  276. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 0 `Main` (<Main()>:0) --->
    277. 

  277. // CHECK:STDOUT: >[] stack-push: ExpressionAction pos: 0 `Main` (<Main()>:0)
    278. 

  278. // CHECK:STDOUT: ->> step ExpressionAction pos: 0 `Main` (<Main()>:0) --->
    279. 

  279. // CHECK:STDOUT: <[] stack-pop:  ExpressionAction pos: 0 `Main` (<Main()>:0)
    280. 

  280. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 1 `Main` results: [`fun<Main>`]  (<Main()>:0) --->
    281. 

  281. // CHECK:STDOUT: <[] stack-pop:  ValueExpressionAction pos: 1 `Main` results: [`fun<Main>`]  (<Main()>:0)
    282. 

  282. // CHECK:STDOUT: ->> step ExpressionAction pos: 1 `Main()` results: [`fun<Main>`]  scope: [] (<Main()>:0) --->
    283. 

  283. // CHECK:STDOUT: -() calling function: fun<Main>
    284. 

  284. // CHECK:STDOUT: === match pattern `()`
    285. 

  285. // CHECK:STDOUT:     from value expression with value `()`
    286. 

  286. // CHECK:STDOUT: >[] stack-push: ScopeAction pos: 0  scope: [] (None)
    287. 

  287. // CHECK:STDOUT: >[] stack-push: StatementAction pos: 0 `{ ... }` (context_main.carbon:11)
    288. 

  288. // CHECK:STDOUT: ->> step StatementAction pos: 0 `{ ... }` (context_main.carbon:11) --->
    289. 

  289. // CHECK:STDOUT:
    290. 

  290. // CHECK:STDOUT: *** statement at (context_main.carbon:11)
    291. 

  291. // CHECK:STDOUT: ```
    292. 

  292. // CHECK:STDOUT: {
    293. 

  293. // CHECK:STDOUT:   return 0;
    294. 

  294. // CHECK:STDOUT: }
    295. 

  295. // CHECK:STDOUT: ```
    296. 

  296. // CHECK:STDOUT: >[] stack-push: StatementAction pos: 0 `return ...;` (context_main.carbon:10)
    297. 

  297. // CHECK:STDOUT: ->> step StatementAction pos: 0 `return ...;` (context_main.carbon:10) --->
    298. 

  298. // CHECK:STDOUT:
    299. 

  299. // CHECK:STDOUT: *** statement at (context_main.carbon:10)
    300. 

  300. // CHECK:STDOUT: ```
    301. 

  301. // CHECK:STDOUT: return 0;
    302. 

  302. // CHECK:STDOUT: ```
    303. 

  303. // CHECK:STDOUT: >[] stack-push: ValueExpressionAction pos: 0 `0` (context_main.carbon:10)
    304. 

  304. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 0 `0` (context_main.carbon:10) --->
    305. 

  305. // CHECK:STDOUT: >[] stack-push: ExpressionAction pos: 0 `0` (context_main.carbon:10)
    306. 

  306. // CHECK:STDOUT: ->> step ExpressionAction pos: 0 `0` (context_main.carbon:10) --->
    307. 

  307. // CHECK:STDOUT: <[] stack-pop:  ExpressionAction pos: 0 `0` (context_main.carbon:10)
    308. 

  308. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 1 `0` results: [`0`]  (context_main.carbon:10) --->
    309. 

  309. // CHECK:STDOUT: <[] stack-pop:  ValueExpressionAction pos: 1 `0` results: [`0`]  (context_main.carbon:10)
    310. 

  310. // CHECK:STDOUT: ->> step StatementAction pos: 1 `return ...;` results: [`0`]  (context_main.carbon:10) --->
    311. 

  311. // CHECK:STDOUT:
    312. 

  312. // CHECK:STDOUT: *** statement at (context_main.carbon:10)
    313. 

  313. // CHECK:STDOUT: ```
    314. 

  314. // CHECK:STDOUT: return 0;
    315. 

  315. // CHECK:STDOUT: ```
    316. 

  316. // CHECK:STDOUT: <[] stack-pop:  StatementAction pos: 1 `return ...;` results: [`0`]  (context_main.carbon:10)
    317. 

  317. // CHECK:STDOUT: <[] stack-pop:  StatementAction pos: 1 `{ ... }` scope: [] (context_main.carbon:11)
    318. 

  318. // CHECK:STDOUT: <[] stack-pop:  ScopeAction pos: 0  scope: [] (None)
    319. 

  319. // CHECK:STDOUT: >[] stack-push: CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    320. 

  320. // CHECK:STDOUT: >[] stack-push: CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    321. 

  321. // CHECK:STDOUT: ->> step CleanUpAction pos: 0  scope: [] (stack cleanup:1) --->
    322. 

  322. // CHECK:STDOUT: <[] stack-pop:  CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    323. 

  323. // CHECK:STDOUT: ->> step CleanUpAction pos: 0  scope: [] (stack cleanup:1) --->
    324. 

  324. // CHECK:STDOUT: <[] stack-pop:  CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    325. 

  325. // CHECK:STDOUT: ->> step ExpressionAction pos: 2 `Main()` results: [`fun<Main>`, `0`]  scope: [] (<Main()>:0) --->
    326. 

  326. // CHECK:STDOUT: <[] stack-pop:  ExpressionAction pos: 2 `Main()` results: [`fun<Main>`, `0`]  scope: [] (<Main()>:0)
    327. 

  327. // CHECK:STDOUT: >[] stack-push: CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    328. 

  328. // CHECK:STDOUT: ->> step CleanUpAction pos: 0  scope: [] (stack cleanup:1) --->
    329. 

  329. // CHECK:STDOUT: <[] stack-pop:  CleanUpAction pos: 0  scope: [] (stack cleanup:1)
    330. 

  330. // CHECK:STDOUT: ->> step ValueExpressionAction pos: 1 `Main()` results: [`0`]  (<Main()>:0) --->
    331. 

  331. // CHECK:STDOUT: <[] stack-pop:  ValueExpressionAction pos: 1 `Main()` results: [`0`]  (<Main()>:0)
    332. 

  332. // CHECK:STDOUT: ==> interpreter result: 0
    333. 

  333. // CHECK:STDOUT:
    334. 

  334. // CHECK:STDOUT:
    335. 

  335. // CHECK:STDOUT: * * * * * * * * * *  printing timing  * * * * * * * * * *
    336. 

  336. // CHECK:STDOUT: ---------------------------------------------------------
    337. 

  337. // CHECK:STDOUT: Time elapsed in ExecProgram: {{\d+}}ms
    338. 

  338. // CHECK:STDOUT: Time elapsed in AnalyzeProgram: {{\d+}}ms
    339. 

  339. // CHECK:STDOUT: Time elapsed in AddPrelude: {{\d+}}ms
    340. 

  340. // CHECK:STDOUT: Time elapsed in Parse: {{\d+}}ms
    341. 

  341. // CHECK:STDOUT: result: 0
    342.