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odin-lang.Odin
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درخت: dev-2023-0
شاخه‌ها تگ‌ها
odin-lang.Odin
/
core
/
sys
/
info
/
platform_darwin.odin

platform_darwin.odin 25 KB
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  1. // +build darwin
    2. 

  2. package sysinfo
    3. 

  3. 

  4. import sys "core:sys/unix"
    5. 

  5. import "core:strconv"
    6. 

  6. import "core:strings"
    7. 

  7. 

  8. @(private)
    9. 

  9. version_string_buf: [1024]u8
    10. 

  10. 

  11. @(init, private)
    12. 

  12. init_os_version :: proc () {
    13. 

  13. 	os_version.platform = .MacOS
    14. 

  14. 

  15. 	// Start building display version
    16. 

  16. 	b := strings.builder_from_bytes(version_string_buf[:])
    17. 

  17. 

  18. 	mib := []i32{sys.CTL_KERN, sys.KERN_OSVERSION}
    19. 

  19. 	build_buf: [12]u8
    20. 

  20. 

  21. 	ok := sys.sysctl(mib, &build_buf)
    22. 

  22. 	if !ok {
    23. 

  23. 		strings.write_string(&b, "macOS Unknown")
    24. 

  24. 		os_version.as_string = strings.to_string(b)
    25. 

  25. 		return
    26. 

  26. 	}
    27. 

  27. 

  28. 	build := string(cstring(&build_buf[0]))
    29. 

  29. 

  30. 	// Do we have an exact match?
    31. 

  31. 	match: Darwin_Match
    32. 

  32. 	rel, exact := macos_release_map[build]
    33. 

  33. 

  34. 	if exact {
    35. 

  35. 		match = .Exact
    36. 

  36. 	} else {
    37. 

  37. 		// Match on XNU kernel version
    38. 

  38. 		mib = []i32{sys.CTL_KERN, sys.KERN_OSRELEASE}
    39. 

  39. 		version_bits: [12]u8 // enough for 999.999.999\x00
    40. 

  40. 		have_kernel_version := sys.sysctl(mib, &version_bits)
    41. 

  41. 

  42. 		major_ok, minor_ok, patch_ok: bool
    43. 

  43. 

  44. 		triplet := strings.split(string(cstring(&version_bits[0])), ".", context.temp_allocator)
    45. 

  45. 		if len(triplet) != 3 {
    46. 

  46. 			have_kernel_version = false
    47. 

  47. 		} else {
    48. 

  48. 			rel.darwin.x, major_ok = strconv.parse_int(triplet[0])
    49. 

  49. 			rel.darwin.y, minor_ok = strconv.parse_int(triplet[1])
    50. 

  50. 			rel.darwin.z, patch_ok = strconv.parse_int(triplet[2])
    51. 

  51. 

  52. 			if !(major_ok && minor_ok && patch_ok) {
    53. 

  53. 				have_kernel_version = false
    54. 

  54. 			}
    55. 

  55. 		}
    56. 

  56. 

  57. 		if !have_kernel_version {
    58. 

  58. 			// We don't know the kernel version, but we do know the build
    59. 

  59. 			strings.write_string(&b, "macOS Unknown (build ")
    60. 

  60. 			l := strings.builder_len(b)
    61. 

  61. 			strings.write_string(&b, build)
    62. 

  62. 			os_version.version = strings.to_string(b)[l:]
    63. 

  63. 			strings.write_rune(&b, ')')
    64. 

  64. 			os_version.as_string = strings.to_string(b)
    65. 

  65. 			return
    66. 

  66. 		}
    67. 

  67. 		rel, match = map_darwin_kernel_version_to_macos_release(build, rel.darwin)
    68. 

  68. 	}
    69. 

  69. 

  70. 	os_version.major = rel.darwin.x
    71. 

  71. 	os_version.minor = rel.darwin.y
    72. 

  72. 	os_version.patch = rel.darwin.z
    73. 

  73. 

  74. 	strings.write_string(&b, rel.os_name)
    75. 

  75. 	if match == .Exact || match == .Nearest {
    76. 

  76. 		strings.write_rune(&b, ' ')
    77. 

  77. 		strings.write_string(&b, rel.release.name)
    78. 

  78. 		strings.write_rune(&b, ' ')
    79. 

  79. 		strings.write_int(&b, rel.release.version.x)
    80. 

  80. 		if rel.release.version.y > 0 || rel.release.version.z > 0 {
    81. 

  81. 			strings.write_rune(&b, '.')
    82. 

  82. 			strings.write_int(&b, rel.release.version.y)
    83. 

  83. 		}
    84. 

  84. 		if rel.release.version.z > 0 {
    85. 

  85. 			strings.write_rune(&b, '.')
    86. 

  86. 			strings.write_int(&b, rel.release.version.z)
    87. 

  87. 		}
    88. 

  88. 		if match == .Nearest {
    89. 

  89. 			strings.write_rune(&b, '?')
    90. 

  90. 		}
    91. 

  91. 	} else {
    92. 

  92. 		strings.write_string(&b, " Unknown")
    93. 

  93. 	}
    94. 

  94. 

  95. 	strings.write_string(&b, " (build ")
    96. 

  96. 	l := strings.builder_len(b)
    97. 

  97. 	strings.write_string(&b, build)
    98. 

  98. 	os_version.version = strings.to_string(b)[l:]
    99. 

  99. 

  100. 	strings.write_string(&b, ", kernel ")
    101. 

  101. 	strings.write_int(&b, rel.darwin.x)
    102. 

  102. 	strings.write_rune(&b, '.')
    103. 

  103. 	strings.write_int(&b, rel.darwin.y)
    104. 

  104. 	strings.write_rune(&b, '.')
    105. 

  105. 	strings.write_int(&b, rel.darwin.z)
    106. 

  106. 	strings.write_rune(&b, ')')
    107. 

  107. 

  108. 	os_version.as_string = strings.to_string(b)
    109. 

  109. }
    110. 

  110. 

  111. @(init)
    112. 

  112. init_ram :: proc() {
    113. 

  113. 	// Retrieve RAM info using `sysctl`
    114. 

  114. 

  115. 	mib := []i32{sys.CTL_HW, sys.HW_MEMSIZE}
    116. 

  116. 	mem_size: u64
    117. 

  117. 	if sys.sysctl(mib, &mem_size) {
    118. 

  118. 		ram.total_ram = int(mem_size)
    119. 

  119. 	}
    120. 

  120. }
    121. 

  121. 

  122. @(private)
    123. 

  123. Darwin_To_Release :: struct {
    124. 

  124. 	darwin:      [3]int, // Darwin kernel triplet
    125. 

  125. 	os_name:     string, // OS X, MacOS
    126. 

  126. 	release:     struct {
    127. 

  127. 		name:    string, // Monterey, Mojave, etc.
    128. 

  128. 		version: [3]int, // 12.4, etc.
    129. 

  129. 	},
    130. 

  130. }
    131. 

  131. 

  132. // Important: Order from lowest to highest kernel version
    133. 

  133. @(private)
    134. 

  134. macos_release_map: map[string]Darwin_To_Release = {
    135. 

  135. 	// MacOS Tiger
    136. 

  136. 	"8A428"   = {{8, 0, 0},   "macOS", {"Tiger",         {10,  4, 0}}},
    137. 

  137. 	"8A432"   = {{8, 0, 0},   "macOS", {"Tiger",         {10,  4, 0}}},
    138. 

  138. 	"8B15"    = {{8, 1, 0},   "macOS", {"Tiger",         {10,  4, 1}}},
    139. 

  139. 	"8B17"    = {{8, 1, 0},   "macOS", {"Tiger",         {10,  4, 1}}},
    140. 

  140. 	"8C46"    = {{8, 2, 0},   "macOS", {"Tiger",         {10,  4, 2}}},
    141. 

  141. 	"8C47"    = {{8, 2, 0},   "macOS", {"Tiger",         {10,  4, 2}}},
    142. 

  142. 	"8E102"   = {{8, 2, 0},   "macOS", {"Tiger",         {10,  4, 2}}},
    143. 

  143. 	"8E45"    = {{8, 2, 0},   "macOS", {"Tiger",         {10,  4, 2}}},
    144. 

  144. 	"8E90"    = {{8, 2, 0},   "macOS", {"Tiger",         {10,  4, 2}}},
    145. 

  145. 	"8F46"    = {{8, 3, 0},   "macOS", {"Tiger",         {10,  4, 3}}},
    146. 

  146. 	"8G32"    = {{8, 4, 0},   "macOS", {"Tiger",         {10,  4, 4}}},
    147. 

  147. 	"8G1165"  = {{8, 4, 0},   "macOS", {"Tiger",         {10,  4, 4}}},
    148. 

  148. 	"8H14"    = {{8, 5, 0},   "macOS", {"Tiger",         {10,  4, 5}}},
    149. 

  149. 	"8G1454"  = {{8, 5, 0},   "macOS", {"Tiger",         {10,  4, 5}}},
    150. 

  150. 	"8I127"   = {{8, 6, 0},   "macOS", {"Tiger",         {10,  4, 6}}},
    151. 

  151. 	"8I1119"  = {{8, 6, 0},   "macOS", {"Tiger",         {10,  4, 6}}},
    152. 

  152. 	"8J135"   = {{8, 7, 0},   "macOS", {"Tiger",         {10,  4, 7}}},
    153. 

  153. 	"8J2135a" = {{8, 7, 0},   "macOS", {"Tiger",         {10,  4, 7}}},
    154. 

  154. 	"8K1079"  = {{8, 7, 0},   "macOS", {"Tiger",         {10,  4, 7}}},
    155. 

  155. 	"8N5107"  = {{8, 7, 0},   "macOS", {"Tiger",         {10,  4, 7}}},
    156. 

  156. 	"8L127"   = {{8, 8, 0},   "macOS", {"Tiger",         {10,  4, 8}}},
    157. 

  157. 	"8L2127"  = {{8, 8, 0},   "macOS", {"Tiger",         {10,  4, 8}}},
    158. 

  158. 	"8P135"   = {{8, 9, 0},   "macOS", {"Tiger",         {10,  4, 9}}},
    159. 

  159. 	"8P2137"  = {{8, 9, 0},   "macOS", {"Tiger",         {10,  4, 9}}},
    160. 

  160. 	"8R218"   = {{8, 10, 0},  "macOS", {"Tiger",         {10,  4, 10}}},
    161. 

  161. 	"8R2218"  = {{8, 10, 0},  "macOS", {"Tiger",         {10,  4, 10}}},
    162. 

  162. 	"8R2232"  = {{8, 10, 0},  "macOS", {"Tiger",         {10,  4, 10}}},
    163. 

  163. 	"8S165"   = {{8, 11, 0},  "macOS", {"Tiger",         {10,  4, 11}}},
    164. 

  164. 	"8S2167"  = {{8, 11, 0},  "macOS", {"Tiger",         {10,  4, 11}}},
    165. 

  165. 

  166. 	// MacOS Leopard
    167. 

  167. 	"9A581"   = {{9, 0, 0},   "macOS", {"Leopard",       {10,  5, 0}}},
    168. 

  168. 	"9B18"    = {{9, 1, 0},   "macOS", {"Leopard",       {10,  5, 1}}},
    169. 

  169. 	"9B2117"  = {{9, 1, 1},   "macOS", {"Leopard",       {10,  5, 1}}},
    170. 

  170. 	"9C31"    = {{9, 2, 0},   "macOS", {"Leopard",       {10,  5, 2}}},
    171. 

  171. 	"9C7010"  = {{9, 2, 0},   "macOS", {"Leopard",       {10,  5, 2}}},
    172. 

  172. 	"9D34"    = {{9, 3, 0},   "macOS", {"Leopard",       {10,  5, 3}}},
    173. 

  173. 	"9E17"    = {{9, 4, 0},   "macOS", {"Leopard",       {10,  5, 4}}},
    174. 

  174. 	"9F33"    = {{9, 5, 0},   "macOS", {"Leopard",       {10,  5, 5}}},
    175. 

  175. 	"9G55"    = {{9, 6, 0},   "macOS", {"Leopard",       {10,  5, 6}}},
    176. 

  176. 	"9G66"    = {{9, 6, 0},   "macOS", {"Leopard",       {10,  5, 6}}},
    177. 

  177. 	"9G71"    = {{9, 6, 0},   "macOS", {"Leopard",       {10,  5, 6}}},
    178. 

  178. 	"9J61"    = {{9, 7, 0},   "macOS", {"Leopard",       {10,  5, 7}}},
    179. 

  179. 	"9L30"    = {{9, 8, 0},   "macOS", {"Leopard",       {10,  5, 8}}},
    180. 

  180. 	"9L34"    = {{9, 8, 0},   "macOS", {"Leopard",       {10,  5, 8}}},
    181. 

  181. 

  182. 	// MacOS Snow Leopard
    183. 

  183. 	"10A432"  = {{10, 0, 0},  "macOS", {"Snow Leopard",  {10,  6, 0}}},
    184. 

  184. 	"10A433"  = {{10, 0, 0},  "macOS", {"Snow Leopard",  {10,  6, 0}}},
    185. 

  185. 	"10B504"  = {{10, 1, 0},  "macOS", {"Snow Leopard",  {10,  6, 1}}},
    186. 

  186. 	"10C540"  = {{10, 2, 0},  "macOS", {"Snow Leopard",  {10,  6, 2}}},
    187. 

  187. 	"10D573"  = {{10, 3, 0},  "macOS", {"Snow Leopard",  {10,  6, 3}}},
    188. 

  188. 	"10D575"  = {{10, 3, 0},  "macOS", {"Snow Leopard",  {10,  6, 3}}},
    189. 

  189. 	"10D578"  = {{10, 3, 0},  "macOS", {"Snow Leopard",  {10,  6, 3}}},
    190. 

  190. 	"10F569"  = {{10, 4, 0},  "macOS", {"Snow Leopard",  {10,  6, 4}}},
    191. 

  191. 	"10H574"  = {{10, 5, 0},  "macOS", {"Snow Leopard",  {10,  6, 5}}},
    192. 

  192. 	"10J567"  = {{10, 6, 0},  "macOS", {"Snow Leopard",  {10,  6, 6}}},
    193. 

  193. 	"10J869"  = {{10, 7, 0},  "macOS", {"Snow Leopard",  {10,  6, 7}}},
    194. 

  194. 	"10J3250" = {{10, 7, 0},  "macOS", {"Snow Leopard",  {10,  6, 7}}},
    195. 

  195. 	"10J4138" = {{10, 7, 0},  "macOS", {"Snow Leopard",  {10,  6, 7}}},
    196. 

  196. 	"10K540"  = {{10, 8, 0},  "macOS", {"Snow Leopard",  {10,  6, 8}}},
    197. 

  197. 	"10K549"  = {{10, 8, 0},  "macOS", {"Snow Leopard",  {10,  6, 8}}},
    198. 

  198. 

  199. 	// MacOS Lion
    200. 

  200. 	"11A511"  = {{11, 0, 0},  "macOS", {"Lion",          {10,  7, 0}}},
    201. 

  201. 	"11A511s" = {{11, 0, 0},  "macOS", {"Lion",          {10,  7, 0}}},
    202. 

  202. 	"11A2061" = {{11, 0, 2},  "macOS", {"Lion",          {10,  7, 0}}},
    203. 

  203. 	"11A2063" = {{11, 0, 2},  "macOS", {"Lion",          {10,  7, 0}}},
    204. 

  204. 	"11B26"   = {{11, 1, 0},  "macOS", {"Lion",          {10,  7, 1}}},
    205. 

  205. 	"11B2118" = {{11, 1, 0},  "macOS", {"Lion",          {10,  7, 1}}},
    206. 

  206. 	"11C74"   = {{11, 2, 0},  "macOS", {"Lion",          {10,  7, 2}}},
    207. 

  207. 	"11D50"   = {{11, 3, 0},  "macOS", {"Lion",          {10,  7, 3}}},
    208. 

  208. 	"11E53"   = {{11, 4, 0},  "macOS", {"Lion",          {10,  7, 4}}},
    209. 

  209. 	"11G56"   = {{11, 4, 2},  "macOS", {"Lion",          {10,  7, 5}}},
    210. 

  210. 	"11G63"   = {{11, 4, 2},  "macOS", {"Lion",          {10,  7, 5}}},
    211. 

  211. 

  212. 	// MacOS Mountain Lion
    213. 

  213. 	"12A269"  = {{12, 0, 0},  "macOS", {"Mountain Lion", {10,  8, 0}}},
    214. 

  214. 	"12B19"   = {{12, 1, 0},  "macOS", {"Mountain Lion", {10,  8, 1}}},
    215. 

  215. 	"12C54"   = {{12, 2, 0},  "macOS", {"Mountain Lion", {10,  8, 2}}},
    216. 

  216. 	"12C60"   = {{12, 2, 0},  "macOS", {"Mountain Lion", {10,  8, 2}}},
    217. 

  217. 	"12C2034" = {{12, 2, 0},  "macOS", {"Mountain Lion", {10,  8, 2}}},
    218. 

  218. 	"12C3104" = {{12, 2, 0},  "macOS", {"Mountain Lion", {10,  8, 2}}},
    219. 

  219. 	"12D78"   = {{12, 3, 0},  "macOS", {"Mountain Lion", {10,  8, 3}}},
    220. 

  220. 	"12E55"   = {{12, 4, 0},  "macOS", {"Mountain Lion", {10,  8, 4}}},
    221. 

  221. 	"12E3067" = {{12, 4, 0},  "macOS", {"Mountain Lion", {10,  8, 4}}},
    222. 

  222. 	"12E4022" = {{12, 4, 0},  "macOS", {"Mountain Lion", {10,  8, 4}}},
    223. 

  223. 	"12F37"   = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    224. 

  224. 	"12F45"   = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    225. 

  225. 	"12F2501" = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    226. 

  226. 	"12F2518" = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    227. 

  227. 	"12F2542" = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    228. 

  228. 	"12F2560" = {{12, 5, 0},  "macOS", {"Mountain Lion", {10,  8, 5}}},
    229. 

  229. 

  230. 	// MacOS Mavericks
    231. 

  231. 	"13A603"  = {{13, 0, 0},  "macOS", {"Mavericks",     {10,  9, 0}}},
    232. 

  232. 	"13B42"   = {{13, 0, 0},  "macOS", {"Mavericks",     {10,  9, 1}}},
    233. 

  233. 	"13C64"   = {{13, 1, 0},  "macOS", {"Mavericks",     {10,  9, 2}}},
    234. 

  234. 	"13C1021" = {{13, 1, 0},  "macOS", {"Mavericks",     {10,  9, 2}}},
    235. 

  235. 	"13D65"   = {{13, 2, 0},  "macOS", {"Mavericks",     {10,  9, 3}}},
    236. 

  236. 	"13E28"   = {{13, 3, 0},  "macOS", {"Mavericks",     {10,  9, 4}}},
    237. 

  237. 	"13F34"   = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    238. 

  238. 	"13F1066" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    239. 

  239. 	"13F1077" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    240. 

  240. 	"13F1096" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    241. 

  241. 	"13F1112" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    242. 

  242. 	"13F1134" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    243. 

  243. 	"13F1507" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    244. 

  244. 	"13F1603" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    245. 

  245. 	"13F1712" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    246. 

  246. 	"13F1808" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    247. 

  247. 	"13F1911" = {{13, 4, 0},  "macOS", {"Mavericks",     {10,  9, 5}}},
    248. 

  248. 

  249. 	// MacOS Yosemite
    250. 

  250. 	"14A389"  = {{14, 0, 0},  "macOS", {"Yosemite",      {10, 10, 0}}},
    251. 

  251. 	"14B25"   = {{14, 0, 0},  "macOS", {"Yosemite",      {10, 10, 1}}},
    252. 

  252. 	"14C109"  = {{14, 1, 0},  "macOS", {"Yosemite",      {10, 10, 2}}},
    253. 

  253. 	"14C1510" = {{14, 1, 0},  "macOS", {"Yosemite",      {10, 10, 2}}},
    254. 

  254. 	"14C2043" = {{14, 1, 0},  "macOS", {"Yosemite",      {10, 10, 2}}},
    255. 

  255. 	"14C1514" = {{14, 1, 0},  "macOS", {"Yosemite",      {10, 10, 2}}},
    256. 

  256. 	"14C2513" = {{14, 1, 0},  "macOS", {"Yosemite",      {10, 10, 2}}},
    257. 

  257. 	"14D131"  = {{14, 3, 0},  "macOS", {"Yosemite",      {10, 10, 3}}},
    258. 

  258. 	"14D136"  = {{14, 3, 0},  "macOS", {"Yosemite",      {10, 10, 3}}},
    259. 

  259. 	"14E46"   = {{14, 4, 0},  "macOS", {"Yosemite",      {10, 10, 4}}},
    260. 

  260. 	"14F27"   = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    261. 

  261. 	"14F1021" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    262. 

  262. 	"14F1505" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    263. 

  263. 	"14F1509" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    264. 

  264. 	"14F1605" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    265. 

  265. 	"14F1713" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    266. 

  266. 	"14F1808" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    267. 

  267. 	"14F1909" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    268. 

  268. 	"14F1912" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    269. 

  269. 	"14F2009" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    270. 

  270. 	"14F2109" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    271. 

  271. 	"14F2315" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    272. 

  272. 	"14F2411" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    273. 

  273. 	"14F2511" = {{14, 5, 0},  "macOS", {"Yosemite",      {10, 10, 5}}},
    274. 

  274. 

  275. 	// MacOS El Capitan
    276. 

  276. 	"15A284"   = {{15, 0, 0}, "macOS", {"El Capitan",    {10, 11, 0}}},
    277. 

  277. 	"15B42"    = {{15, 0, 0}, "macOS", {"El Capitan",    {10, 11, 1}}},
    278. 

  278. 	"15C50"    = {{15, 2, 0}, "macOS", {"El Capitan",    {10, 11, 2}}},
    279. 

  279. 	"15D21"    = {{15, 3, 0}, "macOS", {"El Capitan",    {10, 11, 3}}},
    280. 

  280. 	"15E65"    = {{15, 4, 0}, "macOS", {"El Capitan",    {10, 11, 4}}},
    281. 

  281. 	"15F34"    = {{15, 5, 0}, "macOS", {"El Capitan",    {10, 11, 5}}},
    282. 

  282. 	"15G31"    = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    283. 

  283. 	"15G1004"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    284. 

  284. 	"15G1011"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    285. 

  285. 	"15G1108"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    286. 

  286. 	"15G1212"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    287. 

  287. 	"15G1217"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    288. 

  288. 	"15G1421"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    289. 

  289. 	"15G1510"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    290. 

  290. 	"15G1611"  = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    291. 

  291. 	"15G17023" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    292. 

  292. 	"15G18013" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    293. 

  293. 	"15G19009" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    294. 

  294. 	"15G20015" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    295. 

  295. 	"15G21013" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    296. 

  296. 	"15G22010" = {{15, 6, 0}, "macOS", {"El Capitan",    {10, 11, 6}}},
    297. 

  297. 

  298. 	// MacOS Sierra
    299. 

  299. 	"16A323"   = {{16, 0, 0}, "macOS", {"Sierra",        {10, 12, 0}}},
    300. 

  300. 	"16B2555"  = {{16, 1, 0}, "macOS", {"Sierra",        {10, 12, 1}}},
    301. 

  301. 	"16B2657"  = {{16, 1, 0}, "macOS", {"Sierra",        {10, 12, 1}}},
    302. 

  302. 	"16C67"    = {{16, 3, 0}, "macOS", {"Sierra",        {10, 12, 2}}},
    303. 

  303. 	"16C68"    = {{16, 3, 0}, "macOS", {"Sierra",        {10, 12, 2}}},
    304. 

  304. 	"16D32"    = {{16, 4, 0}, "macOS", {"Sierra",        {10, 12, 3}}},
    305. 

  305. 	"16E195"   = {{16, 5, 0}, "macOS", {"Sierra",        {10, 12, 4}}},
    306. 

  306. 	"16F73"    = {{16, 6, 0}, "macOS", {"Sierra",        {10, 12, 5}}},
    307. 

  307. 	"16F2073"  = {{16, 6, 0}, "macOS", {"Sierra",        {10, 12, 5}}},
    308. 

  308. 	"16G29"    = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    309. 

  309. 	"16G1036"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    310. 

  310. 	"16G1114"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    311. 

  311. 	"16G1212"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    312. 

  312. 	"16G1314"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    313. 

  313. 	"16G1408"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    314. 

  314. 	"16G1510"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    315. 

  315. 	"16G1618"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    316. 

  316. 	"16G1710"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    317. 

  317. 	"16G1815"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    318. 

  318. 	"16G1917"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    319. 

  319. 	"16G1918"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    320. 

  320. 	"16G2016"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    321. 

  321. 	"16G2127"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    322. 

  322. 	"16G2128"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    323. 

  323. 	"16G2136"  = {{16, 7, 0}, "macOS", {"Sierra",        {10, 12, 6}}},
    324. 

  324. 

  325. 	// MacOS High Sierra
    326. 

  326. 	"17A365"   = {{17, 0, 0}, "macOS", {"High Sierra",   {10, 13, 0}}},
    327. 

  327. 	"17A405"   = {{17, 0, 0}, "macOS", {"High Sierra",   {10, 13, 0}}},
    328. 

  328. 	"17B48"    = {{17, 2, 0}, "macOS", {"High Sierra",   {10, 13, 1}}},
    329. 

  329. 	"17B1002"  = {{17, 2, 0}, "macOS", {"High Sierra",   {10, 13, 1}}},
    330. 

  330. 	"17B1003"  = {{17, 2, 0}, "macOS", {"High Sierra",   {10, 13, 1}}},
    331. 

  331. 	"17C88"    = {{17, 3, 0}, "macOS", {"High Sierra",   {10, 13, 2}}},
    332. 

  332. 	"17C89"    = {{17, 3, 0}, "macOS", {"High Sierra",   {10, 13, 2}}},
    333. 

  333. 	"17C205"   = {{17, 3, 0}, "macOS", {"High Sierra",   {10, 13, 2}}},
    334. 

  334. 	"17C2205"  = {{17, 3, 0}, "macOS", {"High Sierra",   {10, 13, 2}}},
    335. 

  335. 	"17D47"    = {{17, 4, 0}, "macOS", {"High Sierra",   {10, 13, 3}}},
    336. 

  336. 	"17D2047"  = {{17, 4, 0}, "macOS", {"High Sierra",   {10, 13, 3}}},
    337. 

  337. 	"17D102"   = {{17, 4, 0}, "macOS", {"High Sierra",   {10, 13, 3}}},
    338. 

  338. 	"17D2102"  = {{17, 4, 0}, "macOS", {"High Sierra",   {10, 13, 3}}},
    339. 

  339. 	"17E199"   = {{17, 5, 0}, "macOS", {"High Sierra",   {10, 13, 4}}},
    340. 

  340. 	"17E202"   = {{17, 5, 0}, "macOS", {"High Sierra",   {10, 13, 4}}},
    341. 

  341. 	"17F77"    = {{17, 6, 0}, "macOS", {"High Sierra",   {10, 13, 5}}},
    342. 

  342. 	"17G65"    = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    343. 

  343. 	"17G2208"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    344. 

  344. 	"17G2307"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    345. 

  345. 	"17G3025"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    346. 

  346. 	"17G4015"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    347. 

  347. 	"17G5019"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    348. 

  348. 	"17G6029"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    349. 

  349. 	"17G6030"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    350. 

  350. 	"17G7024"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    351. 

  351. 	"17G8029"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    352. 

  352. 	"17G8030"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    353. 

  353. 	"17G8037"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    354. 

  354. 	"17G9016"  = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    355. 

  355. 	"17G10021" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    356. 

  356. 	"17G11023" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    357. 

  357. 	"17G12034" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    358. 

  358. 	"17G13033" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    359. 

  359. 	"17G13035" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    360. 

  360. 	"17G14019" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    361. 

  361. 	"17G14033" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    362. 

  362. 	"17G14042" = {{17, 7, 0}, "macOS", {"High Sierra",   {10, 13, 6}}},
    363. 

  363. 

  364. 	// MacOS Mojave
    365. 

  365. 	"18A391"   = {{18, 0, 0}, "macOS", {"Mojave",        {10, 14, 0}}},
    366. 

  366. 	"18B75"    = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 1}}},
    367. 

  367. 	"18B2107"  = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 1}}},
    368. 

  368. 	"18B3094"  = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 1}}},
    369. 

  369. 	"18C54"    = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 2}}},
    370. 

  370. 	"18D42"    = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 3}}},
    371. 

  371. 	"18D43"    = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 3}}},
    372. 

  372. 	"18D109"   = {{18, 2, 0}, "macOS", {"Mojave",        {10, 14, 3}}},
    373. 

  373. 	"18E226"   = {{18, 5, 0}, "macOS", {"Mojave",        {10, 14, 4}}},
    374. 

  374. 	"18E227"   = {{18, 5, 0}, "macOS", {"Mojave",        {10, 14, 4}}},
    375. 

  375. 	"18F132"   = {{18, 6, 0}, "macOS", {"Mojave",        {10, 14, 5}}},
    376. 

  376. 	"18G84"    = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    377. 

  377. 	"18G87"    = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    378. 

  378. 	"18G95"    = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    379. 

  379. 	"18G103"   = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    380. 

  380. 	"18G1012"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    381. 

  381. 	"18G2022"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    382. 

  382. 	"18G3020"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    383. 

  383. 	"18G4032"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    384. 

  384. 	"18G5033"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    385. 

  385. 	"18G6020"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    386. 

  386. 	"18G6032"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    387. 

  387. 	"18G6042"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    388. 

  388. 	"18G7016"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    389. 

  389. 	"18G8012"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    390. 

  390. 	"18G8022"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    391. 

  391. 	"18G9028"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    392. 

  392. 	"18G9216"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    393. 

  393. 	"18G9323"  = {{18, 7, 0}, "macOS", {"Mojave",        {10, 14, 6}}},
    394. 

  394. 

  395. 	// MacOS Catalina
    396. 

  396. 	"19A583"   = {{19, 0, 0}, "macOS", {"Catalina",      {10, 15, 0}}},
    397. 

  397. 	"19A602"   = {{19, 0, 0}, "macOS", {"Catalina",      {10, 15, 0}}},
    398. 

  398. 	"19A603"   = {{19, 0, 0}, "macOS", {"Catalina",      {10, 15, 0}}},
    399. 

  399. 	"19B88"    = {{19, 0, 0}, "macOS", {"Catalina",      {10, 15, 1}}},
    400. 

  400. 	"19C57"    = {{19, 2, 0}, "macOS", {"Catalina",      {10, 15, 2}}},
    401. 

  401. 	"19C58"    = {{19, 2, 0}, "macOS", {"Catalina",      {10, 15, 2}}},
    402. 

  402. 	"19D76"    = {{19, 3, 0}, "macOS", {"Catalina",      {10, 15, 3}}},
    403. 

  403. 	"19E266"   = {{19, 4, 0}, "macOS", {"Catalina",      {10, 15, 4}}},
    404. 

  404. 	"19E287"   = {{19, 4, 0}, "macOS", {"Catalina",      {10, 15, 4}}},
    405. 

  405. 	"19F96"    = {{19, 5, 0}, "macOS", {"Catalina",      {10, 15, 5}}},
    406. 

  406. 	"19F101"   = {{19, 5, 0}, "macOS", {"Catalina",      {10, 15, 5}}},
    407. 

  407. 	"19G73"    = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 6}}},
    408. 

  408. 	"19G2021"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 6}}},
    409. 

  409. 	"19H2"     = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    410. 

  410. 	"19H4"     = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    411. 

  411. 	"19H15"    = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    412. 

  412. 	"19H114"   = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    413. 

  413. 	"19H512"   = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    414. 

  414. 	"19H524"   = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    415. 

  415. 	"19H1030"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    416. 

  416. 	"19H1217"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    417. 

  417. 	"19H1323"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    418. 

  418. 	"19H1417"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    419. 

  419. 	"19H1419"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    420. 

  420. 	"19H1519"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    421. 

  421. 	"19H1615"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    422. 

  422. 	"19H1713"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    423. 

  423. 	"19H1715"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    424. 

  424. 	"19H1824"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    425. 

  425. 	"19H1922"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    426. 

  426. 	"19H2026"  = {{19, 6, 0}, "macOS", {"Catalina",      {10, 15, 7}}},
    427. 

  427. 

  428. 	// MacOS Big Sur
    429. 

  429. 	"20A2411"  = {{20, 1, 0}, "macOS", {"Big Sur",       {11, 0, 0}}},
    430. 

  430. 	"20B29"    = {{20, 1, 0}, "macOS", {"Big Sur",       {11, 0, 1}}},
    431. 

  431. 	"20B50"    = {{20, 1, 0}, "macOS", {"Big Sur",       {11, 0, 1}}},
    432. 

  432. 	"20C69"    = {{20, 2, 0}, "macOS", {"Big Sur",       {11, 1, 0}}},
    433. 

  433. 	"20D64"    = {{20, 3, 0}, "macOS", {"Big Sur",       {11, 2, 0}}},
    434. 

  434. 	"20D74"    = {{20, 3, 0}, "macOS", {"Big Sur",       {11, 2, 1}}},
    435. 

  435. 	"20D75"    = {{20, 3, 0}, "macOS", {"Big Sur",       {11, 2, 1}}},
    436. 

  436. 	"20D80"    = {{20, 3, 0}, "macOS", {"Big Sur",       {11, 2, 2}}},
    437. 

  437. 	"20D91"    = {{20, 3, 0}, "macOS", {"Big Sur",       {11, 2, 3}}},
    438. 

  438. 	"20E232"   = {{20, 4, 0}, "macOS", {"Big Sur",       {11, 3, 0}}},
    439. 

  439. 	"20E241"   = {{20, 4, 0}, "macOS", {"Big Sur",       {11, 3, 1}}},
    440. 

  440. 	"20F71"    = {{20, 5, 0}, "macOS", {"Big Sur",       {11, 4, 0}}},
    441. 

  441. 	"20G71"    = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 5, 0}}},
    442. 

  442. 	"20G80"    = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 5, 1}}},
    443. 

  443. 	"20G95"    = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 5, 2}}},
    444. 

  444. 	"20G165"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 0}}},
    445. 

  445. 	"20G224"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 1}}},
    446. 

  446. 	"20G314"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 2}}},
    447. 

  447. 	"20G415"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 3}}},
    448. 

  448. 	"20G417"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 4}}},
    449. 

  449. 	"20G527"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 5}}},
    450. 

  450. 	"20G624"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 6}}},
    451. 

  451. 	"20G630"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 7}}},
    452. 

  452. 	"20G730"   = {{20, 6, 0}, "macOS", {"Big Sur",       {11, 6, 8}}},
    453. 

  453. 

  454. 	// MacOS Monterey
    455. 

  455. 	"21A344"   = {{21, 0, 1}, "macOS", {"Monterey",      {12, 0, 0}}},
    456. 

  456. 	"21A559"   = {{21, 1, 0}, "macOS", {"Monterey",      {12, 0, 1}}},
    457. 

  457. 	"21C52"    = {{21, 2, 0}, "macOS", {"Monterey",      {12, 1, 0}}},
    458. 

  458. 	"21D49"    = {{21, 3, 0}, "macOS", {"Monterey",      {12, 2, 0}}},
    459. 

  459. 	"21D62"    = {{21, 3, 0}, "macOS", {"Monterey",      {12, 2, 1}}},
    460. 

  460. 	"21E230"   = {{21, 4, 0}, "macOS", {"Monterey",      {12, 3, 0}}},
    461. 

  461. 	"21E258"   = {{21, 4, 0}, "macOS", {"Monterey",      {12, 3, 1}}},
    462. 

  462. 	"21F79"    = {{21, 5, 0}, "macOS", {"Monterey",      {12, 4, 0}}},
    463. 

  463. 	"21F2081"  = {{21, 5, 0}, "macOS", {"Monterey",      {12, 4, 0}}},
    464. 

  464. 	"21F2092"  = {{21, 5, 0}, "macOS", {"Monterey",      {12, 4, 0}}},
    465. 

  465. 	"21G72"    = {{21, 6, 0}, "macOS", {"Monterey",      {12, 5, 0}}},
    466. 

  466. 	"21G83"    = {{21, 6, 0}, "macOS", {"Monterey",      {12, 5, 1}}},
    467. 

  467. 	"21G115"   = {{21, 6, 0}, "macOS", {"Monterey",      {12, 6, 0}}},
    468. 

  468. }
    469. 

  469. 

  470. @(private)
    471. 

  471. Darwin_Match :: enum {
    472. 

  472. 	Unknown,
    473. 

  473. 	Exact,
    474. 

  474. 	Nearest,
    475. 

  475. }
    476. 

  476. 

  477. @(private)
    478. 

  478. map_darwin_kernel_version_to_macos_release :: proc(build: string, darwin: [3]int) -> (res: Darwin_To_Release, match: Darwin_Match) {
    479. 

  479. 	// Find exact release match if possible.
    480. 

  480. 	if v, v_ok := macos_release_map[build]; v_ok {
    481. 

  481. 		return v, .Exact
    482. 

  482. 	}
    483. 

  483. 

  484. 	nearest: Darwin_To_Release
    485. 

  485. 	for _, v in macos_release_map {
    486. 

  486. 		// Try an exact match on XNU version first.
    487. 

  487. 		if darwin == v.darwin {
    488. 

  488. 			return v, .Exact
    489. 

  489. 		}
    490. 

  490. 

  491. 		// Major kernel version needs to match exactly,
    492. 

  492. 		// otherwise the release is considered .Unknown
    493. 

  493. 		if darwin.x == v.darwin.x {
    494. 

  494. 			if nearest == {} {
    495. 

  495. 				nearest = v
    496. 

  496. 			}
    497. 

  497. 			if darwin.y >= v.darwin.y && v.darwin != nearest.darwin {
    498. 

  498. 				nearest = v
    499. 

  499. 				if darwin.z >= v.darwin.z && v.darwin != nearest.darwin {
    500. 

  500. 					nearest = v
    501. 

  501. 				}
    502. 

  502. 			}
    503. 

  503. 		}
    504. 

  504. 	}
    505. 

  505. 

  506. 	if nearest == {} {
    507. 

  507. 		return {darwin, "macOS", {"Unknown", {}}}, .Unknown
    508. 

  508. 	} else {
    509. 

  509. 		return nearest, .Nearest
    510. 

  510. 	}
    511. 

  511. }
    512.