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carbon-lang
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carbon-lang
/
toolchain
/
lex
/
testdata
/
numeric_literals.carbon

numeric_literals.carbon 14 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/lex/testdata/numeric_literals.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lex/testdata/numeric_literals.carbon
    10. 

  10. 

  11. // --- valid.carbon
    12. 

  12. // CHECK:STDOUT: - filename: valid.carbon
    13. 

  13. // CHECK:STDOUT:   tokens:
    14. 

  14. 

  15. 

  16. fn F() {
    17. 

  17. // CHECK:STDOUT:   - { index:  1, kind:               "Fn", line: {{ *}}[[@LINE-1]], column:  1, indent: 1, spelling: "fn", has_leading_space: true }
    18. 

  18. // CHECK:STDOUT:   - { index:  2, kind:       "Identifier", line: {{ *}}[[@LINE-2]], column:  4, indent: 1, spelling: "F", identifier: 0, has_leading_space: true }
    19. 

  19. // CHECK:STDOUT:   - { index:  3, kind:        "OpenParen", line: {{ *}}[[@LINE-3]], column:  5, indent: 1, spelling: "(", closing_token: 4 }
    20. 

  20. // CHECK:STDOUT:   - { index:  4, kind:       "CloseParen", line: {{ *}}[[@LINE-4]], column:  6, indent: 1, spelling: ")", opening_token: 3 }
    21. 

  21. // CHECK:STDOUT:   - { index:  5, kind:   "OpenCurlyBrace", line: {{ *}}[[@LINE-5]], column:  8, indent: 1, spelling: "{", closing_token: 60, has_leading_space: true }
    22. 

  22.   // 8 and 9 trigger special behavior in APInt when mishandling signed versus
    23. 

  23.   // unsigned, so we pay extra attention to those.
    24. 

  24.   var ints: array(i32, 6) = (
    25. 

  25.   // CHECK:STDOUT:   - { index:  6, kind:              "Var", line: {{ *}}[[@LINE-1]], column:  3, indent: 3, spelling: "var", has_leading_space: true }
    26. 

  26.   // CHECK:STDOUT:   - { index:  7, kind:       "Identifier", line: {{ *}}[[@LINE-2]], column:  7, indent: 3, spelling: "ints", identifier: 1, has_leading_space: true }
    27. 

  27.   // CHECK:STDOUT:   - { index:  8, kind:            "Colon", line: {{ *}}[[@LINE-3]], column: 11, indent: 3, spelling: ":" }
    28. 

  28.   // CHECK:STDOUT:   - { index:  9, kind:            "Array", line: {{ *}}[[@LINE-4]], column: 13, indent: 3, spelling: "array", has_leading_space: true }
    29. 

  29.   // CHECK:STDOUT:   - { index: 10, kind:        "OpenParen", line: {{ *}}[[@LINE-5]], column: 18, indent: 3, spelling: "(", closing_token: 14 }
    30. 

  30.   // CHECK:STDOUT:   - { index: 11, kind:   "IntTypeLiteral", line: {{ *}}[[@LINE-6]], column: 19, indent: 3, spelling: "i32" }
    31. 

  31.   // CHECK:STDOUT:   - { index: 12, kind:            "Comma", line: {{ *}}[[@LINE-7]], column: 22, indent: 3, spelling: "," }
    32. 

  32.   // CHECK:STDOUT:   - { index: 13, kind:       "IntLiteral", line: {{ *}}[[@LINE-8]], column: 24, indent: 3, spelling: "6", value: "6", has_leading_space: true }
    33. 

  33.   // CHECK:STDOUT:   - { index: 14, kind:       "CloseParen", line: {{ *}}[[@LINE-9]], column: 25, indent: 3, spelling: ")", opening_token: 10 }
    34. 

  34.   // CHECK:STDOUT:   - { index: 15, kind:            "Equal", line: {{ *}}[[@LINE-10]], column: 27, indent: 3, spelling: "=", has_leading_space: true }
    35. 

  35.   // CHECK:STDOUT:   - { index: 16, kind:        "OpenParen", line: {{ *}}[[@LINE-11]], column: 29, indent: 3, spelling: "(", closing_token: 31, has_leading_space: true }
    36. 

  36.     8,
    37. 

  37.     // CHECK:STDOUT:   - { index: 17, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "8", value: "8", has_leading_space: true }
    38. 

  38.     // CHECK:STDOUT:   - { index: 18, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  6, indent: 5, spelling: "," }
    39. 

  39.     9,
    40. 

  40.     // CHECK:STDOUT:   - { index: 19, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "9", value: "9", has_leading_space: true }
    41. 

  41.     // CHECK:STDOUT:   - { index: 20, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  6, indent: 5, spelling: "," }
    42. 

  42.     0x8,
    43. 

  43.     // CHECK:STDOUT:   - { index: 21, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "0x8", value: "8", has_leading_space: true }
    44. 

  44.     // CHECK:STDOUT:   - { index: 22, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  8, indent: 5, spelling: "," }
    45. 

  45.     0b1000,
    46. 

  46.     // CHECK:STDOUT:   - { index: 23, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "0b1000", value: "8", has_leading_space: true }
    47. 

  47.     // CHECK:STDOUT:   - { index: 24, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 11, indent: 5, spelling: "," }
    48. 

  48.     0o10,
    49. 

  49.     // CHECK:STDOUT:   - { index: 25, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "0o10", value: "8", has_leading_space: true }
    50. 

  50.     // CHECK:STDOUT:   - { index: 26, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  9, indent: 5, spelling: "," }
    51. 

  51.     39999999999999999993,
    52. 

  52.     // CHECK:STDOUT:   - { index: 27, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "39999999999999999993", value: "39999999999999999993", has_leading_space: true }
    53. 

  53.     // CHECK:STDOUT:   - { index: 28, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 25, indent: 5, spelling: "," }
    54. 

  54.     12345678901234567890123456789012345678901234567890123456789,
    55. 

  55.     // CHECK:STDOUT:   - { index: 29, kind:       "IntLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "12345678901234567890123456789012345678901234567890123456789", value: "12345678901234567890123456789012345678901234567890123456789", has_leading_space: true }
    56. 

  56.     // CHECK:STDOUT:   - { index: 30, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 64, indent: 5, spelling: "," }
    57. 

  57.   );
    58. 

  58.   // CHECK:STDOUT:   - { index: 31, kind:       "CloseParen", line: {{ *}}[[@LINE-1]], column:  3, indent: 3, spelling: ")", opening_token: 16, has_leading_space: true }
    59. 

  59.   // CHECK:STDOUT:   - { index: 32, kind:             "Semi", line: {{ *}}[[@LINE-2]], column:  4, indent: 3, spelling: ";" }
    60. 

  60.   var floats: array(f64, 7) = (
    61. 

  61.   // CHECK:STDOUT:   - { index: 33, kind:              "Var", line: {{ *}}[[@LINE-1]], column:  3, indent: 3, spelling: "var", has_leading_space: true }
    62. 

  62.   // CHECK:STDOUT:   - { index: 34, kind:       "Identifier", line: {{ *}}[[@LINE-2]], column:  7, indent: 3, spelling: "floats", identifier: 2, has_leading_space: true }
    63. 

  63.   // CHECK:STDOUT:   - { index: 35, kind:            "Colon", line: {{ *}}[[@LINE-3]], column: 13, indent: 3, spelling: ":" }
    64. 

  64.   // CHECK:STDOUT:   - { index: 36, kind:            "Array", line: {{ *}}[[@LINE-4]], column: 15, indent: 3, spelling: "array", has_leading_space: true }
    65. 

  65.   // CHECK:STDOUT:   - { index: 37, kind:        "OpenParen", line: {{ *}}[[@LINE-5]], column: 20, indent: 3, spelling: "(", closing_token: 41 }
    66. 

  66.   // CHECK:STDOUT:   - { index: 38, kind: "FloatTypeLiteral", line: {{ *}}[[@LINE-6]], column: 21, indent: 3, spelling: "f64" }
    67. 

  67.   // CHECK:STDOUT:   - { index: 39, kind:            "Comma", line: {{ *}}[[@LINE-7]], column: 24, indent: 3, spelling: "," }
    68. 

  68.   // CHECK:STDOUT:   - { index: 40, kind:       "IntLiteral", line: {{ *}}[[@LINE-8]], column: 26, indent: 3, spelling: "7", value: "7", has_leading_space: true }
    69. 

  69.   // CHECK:STDOUT:   - { index: 41, kind:       "CloseParen", line: {{ *}}[[@LINE-9]], column: 27, indent: 3, spelling: ")", opening_token: 37 }
    70. 

  70.   // CHECK:STDOUT:   - { index: 42, kind:            "Equal", line: {{ *}}[[@LINE-10]], column: 29, indent: 3, spelling: "=", has_leading_space: true }
    71. 

  71.   // CHECK:STDOUT:   - { index: 43, kind:        "OpenParen", line: {{ *}}[[@LINE-11]], column: 31, indent: 3, spelling: "(", closing_token: 58, has_leading_space: true }
    72. 

  72.     0.9,
    73. 

  73.     // CHECK:STDOUT:   - { index: 44, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "0.9", value: "9*10^-1", has_leading_space: true }
    74. 

  74.     // CHECK:STDOUT:   - { index: 45, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  8, indent: 5, spelling: "," }
    75. 

  75.     8.0,
    76. 

  76.     // CHECK:STDOUT:   - { index: 46, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "8.0", value: "80*10^-1", has_leading_space: true }
    77. 

  77.     // CHECK:STDOUT:   - { index: 47, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  8, indent: 5, spelling: "," }
    78. 

  78.     80.0,
    79. 

  79.     // CHECK:STDOUT:   - { index: 48, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "80.0", value: "800*10^-1", has_leading_space: true }
    80. 

  80.     // CHECK:STDOUT:   - { index: 49, kind:            "Comma", line: {{ *}}[[@LINE-2]], column:  9, indent: 5, spelling: "," }
    81. 

  81.     1.0e7,
    82. 

  82.     // CHECK:STDOUT:   - { index: 50, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "1.0e7", value: "10*10^6", has_leading_space: true }
    83. 

  83.     // CHECK:STDOUT:   - { index: 51, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 10, indent: 5, spelling: "," }
    84. 

  84.     1.0e8,
    85. 

  85.     // CHECK:STDOUT:   - { index: 52, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "1.0e8", value: "10*10^7", has_leading_space: true }
    86. 

  86.     // CHECK:STDOUT:   - { index: 53, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 10, indent: 5, spelling: "," }
    87. 

  87.     1.0e-8,
    88. 

  88.     // CHECK:STDOUT:   - { index: 54, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "1.0e-8", value: "10*10^-9", has_leading_space: true }
    89. 

  89.     // CHECK:STDOUT:   - { index: 55, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 11, indent: 5, spelling: "," }
    90. 

  90.     39999999999999999993.0e39999999999999999993,
    91. 

  91.     // CHECK:STDOUT:   - { index: 56, kind:      "RealLiteral", line: {{ *}}[[@LINE-1]], column:  5, indent: 5, spelling: "39999999999999999993.0e39999999999999999993", value: "399999999999999999930*10^39999999999999999992", has_leading_space: true }
    92. 

  92.     // CHECK:STDOUT:   - { index: 57, kind:            "Comma", line: {{ *}}[[@LINE-2]], column: 48, indent: 5, spelling: "," }
    93. 

  93.   );
    94. 

  94.   // CHECK:STDOUT:   - { index: 58, kind:       "CloseParen", line: {{ *}}[[@LINE-1]], column:  3, indent: 3, spelling: ")", opening_token: 43, has_leading_space: true }
    95. 

  95.   // CHECK:STDOUT:   - { index: 59, kind:             "Semi", line: {{ *}}[[@LINE-2]], column:  4, indent: 3, spelling: ";" }
    96. 

  96. }
    97. 

  97. // CHECK:STDOUT:   - { index: 60, kind:  "CloseCurlyBrace", line: {{ *}}[[@LINE-1]], column:  1, indent: 1, spelling: "}", opening_token: 5, has_leading_space: true }
    98. 

  98. 

  99. 

  100. // --- fail_binary_real.carbon
    101. 

  101. // CHECK:STDOUT: - filename: fail_binary_real.carbon
    102. 

  102. // CHECK:STDOUT:   tokens:
    103. 

  103. 

  104. // CHECK:STDERR: fail_binary_real.carbon:[[@LINE+4]]:4: error: binary real number literals are not supported [InvalidRealLiteralRadix]
    105. 

  105. // CHECK:STDERR: 0b1.0
    106. 

  106. // CHECK:STDERR:    ^
    107. 

  107. // CHECK:STDERR:
    108. 

  108. 0b1.0
    109. 

  109. // CHECK:STDOUT:   - { index: 1, kind: "RealLiteral", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "0b1.0", value: "2*2^-1", has_leading_space: true }
    110. 

  110. 

  111. // --- fail_octal_real.carbon
    112. 

  112. // CHECK:STDOUT: - filename: fail_octal_real.carbon
    113. 

  113. // CHECK:STDOUT:   tokens:
    114. 

  114. 

  115. // CHECK:STDERR: fail_octal_real.carbon:[[@LINE+4]]:4: error: octal real number literals are not supported [InvalidRealLiteralRadix]
    116. 

  116. // CHECK:STDERR: 0o1.0
    117. 

  117. // CHECK:STDERR:    ^
    118. 

  118. // CHECK:STDERR:
    119. 

  119. 0o1.0
    120. 

  120. // CHECK:STDOUT:   - { index: 1, kind: "RealLiteral", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "0o1.0", value: "8*2^-3", has_leading_space: true }
    121. 

  121. 

  122. 

  123. // --- fail_wrong_real_exponent.carbon
    124. 

  124. // CHECK:STDOUT: - filename: fail_wrong_real_exponent.carbon
    125. 

  125. // CHECK:STDOUT:   tokens:
    126. 

  126. 

  127. // CHECK:STDERR: fail_wrong_real_exponent.carbon:[[@LINE+4]]:4: error: expected 'e' to introduce exponent [WrongRealLiteralExponent]
    128. 

  128. // CHECK:STDERR: 1.0r3
    129. 

  129. // CHECK:STDERR:    ^
    130. 

  130. // CHECK:STDERR:
    131. 

  131. 1.0r3
    132. 

  132. // CHECK:STDOUT:   - { index: 1, kind:     "Error", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "1.0r3", has_leading_space: true }
    133. 

  133. 

  134. // --- fail_invalid_digit.carbon
    135. 

  135. // CHECK:STDOUT: - filename: fail_invalid_digit.carbon
    136. 

  136. // CHECK:STDOUT:   tokens:
    137. 

  137. 

  138. // CHECK:STDERR: fail_invalid_digit.carbon:[[@LINE+4]]:4: error: invalid digit 'a' in hexadecimal numeric literal [InvalidDigit]
    139. 

  139. // CHECK:STDERR: 0x1a
    140. 

  140. // CHECK:STDERR:    ^
    141. 

  141. // CHECK:STDERR:
    142. 

  142. 0x1a
    143. 

  143. // CHECK:STDOUT:   - { index: 1, kind:     "Error", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "0x1a", has_leading_space: true }
    144. 

  144. 

  145. // --- fail_invalid_separator.carbon
    146. 

  146. // CHECK:STDOUT: - filename: fail_invalid_separator.carbon
    147. 

  147. // CHECK:STDOUT:   tokens:
    148. 

  148. 

  149. // CHECK:STDERR: fail_invalid_separator.carbon:[[@LINE+4]]:3: error: misplaced digit separator in numeric literal [InvalidDigitSeparator]
    150. 

  150. // CHECK:STDERR: 1__2
    151. 

  151. // CHECK:STDERR:   ^
    152. 

  152. // CHECK:STDERR:
    153. 

  153. 1__2
    154. 

  154. // CHECK:STDOUT:   - { index: 1, kind: "IntLiteral", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "1__2", value: "12", has_leading_space: true }
    155. 

  155. 

  156. // --- fail_fraction_separator.carbon
    157. 

  157. // CHECK:STDOUT: - filename: fail_fraction_separator.carbon
    158. 

  158. // CHECK:STDOUT:   tokens:
    159. 

  159. // CHECK:STDERR: fail_fraction_separator.carbon:[[@LINE+4]]:7: error: misplaced digit separator in numeric literal [InvalidDigitSeparator]
    160. 

  160. // CHECK:STDERR: 1.0000_0000
    161. 

  161. // CHECK:STDERR:       ^
    162. 

  162. // CHECK:STDERR:
    163. 

  163. 1.0000_0000
    164. 

  164. // CHECK:STDOUT:   - { index: 1, kind: "RealLiteral", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "1.0000_0000", value: "100000000*10^-9", has_leading_space: true }
    165. 

  165. 

  166. // --- fail_fraction_separator_at_end.carbon
    167. 

  167. // CHECK:STDOUT: - filename: fail_fraction_separator_at_end.carbon
    168. 

  168. // CHECK:STDOUT:   tokens:
    169. 

  169. // CHECK:STDERR: fail_fraction_separator_at_end.carbon:[[@LINE+4]]:6: error: misplaced digit separator in numeric literal [InvalidDigitSeparator]
    170. 

  170. // CHECK:STDERR: 1.000_
    171. 

  171. // CHECK:STDERR:      ^
    172. 

  172. // CHECK:STDERR:
    173. 

  173. 1.000_
    174. 

  174. // CHECK:STDOUT:   - { index: 1, kind: "RealLiteral", line: {{ *}}[[@LINE-1]], column: 1, indent: 1, spelling: "1.000_", value: "1000*10^-4", has_leading_space: true }
    175. 

  175. 

  176. // --- fail_unknown_base.carbon
    177. 

  177. // CHECK:STDOUT: - filename: fail_unknown_base.carbon
    178. 

  178. // CHECK:STDOUT:   tokens:
    179. 

  179. 

  180. // CHECK:STDERR: fail_unknown_base.carbon:[[@LINE+4]]:1: error: unknown base specifier in numeric literal [UnknownBaseSpecifier]
    181. 

  181. // CHECK:STDERR: 05
    182. 

  182. // CHECK:STDERR: ^
    183. 

  183. // CHECK:STDERR:
    184. 

  184. 05
    185. 

  185. // CHECK:STDOUT:   - { index: 1, kind:     "Error", line: {{ *}}[[@LINE-1]], column:   1, indent: 1, spelling: "05", has_leading_space: true }
    186.