core/parser.nim
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 |
# Adapted from: https://github.com/Araq/Nimrod/blob/v0.9.6/lib/pure/json.nim import lexbase, strutils, sequtils, oids, streams, critbits, baseutils import unicode except strip type MinTokenKind* = enum tkError, tkEof, tkString, tkInt, tkFloat, tkBracketLe, tkBracketRi, tkBraceLe, tkBraceRi, tkSymbol, tkTrue, tkFalse MinKind* = enum minInt, minFloat, minQuotation, minDictionary, minString, minSymbol, minBool MinEventKind* = enum ## enumeration of all events that may occur when parsing eMinError, ## an error ocurred during parsing eMinEof, ## end of file reached eMinString, ## a string literal eMinInt, ## an integer literal eMinFloat, ## a float literal eMinQuotationStart, ## start of an array: the ``(`` token eMinQuotationEnd, ## start of an array: the ``)`` token eMinDictionaryStart, ## start of a dictionary: the ``{`` token eMinDictionaryEnd ## start of a dictionary: the ``}`` token MinParserError* = enum ## enumeration that lists all errors that can occur errNone, ## no error errInvalidToken, ## invalid token errStringExpected, ## string expected errBracketRiExpected, ## ``)`` expected errBraceRiExpected, ## ``}`` expected errQuoteExpected, ## ``"`` or ``'`` expected errEOC_Expected, ## ``*/`` expected errEofExpected, ## EOF expected errExprExpected MinParserState* = enum stateEof, stateStart, stateQuotation, stateDictionary, stateExpectValue MinParser* = object of BaseLexer a*: string token*: MinTokenKind state*: seq[MinParserState] kind*: MinEventKind err*: MinParserError filename*: string MinValue* = ref MinValueObject MinValueObject* {.acyclic, final.} = object line*: int column*: int filename*: string case kind*: MinKind of minInt: intVal*: BiggestInt of minFloat: floatVal*: BiggestFloat of minDictionary: scope*: ref MinScope obj*: pointer objType*: string of minQuotation: qVal*: seq[MinValue] of minString: strVal*: string of minSymbol: symVal*: string of minBool: boolVal*: bool MinScopeKind* = enum minNativeScope, minLangScope MinScope* {.acyclic, shallow, final.} = object parent*: ref MinScope symbols*: CritBitTree[MinOperator] sigils*: CritBitTree[MinOperator] kind*: MinScopeKind MinOperatorProc* = proc (i: In) {.closure, gcsafe.} MinOperatorKind* = enum minProcOp minValOp MinOperator* = object sealed*: bool case kind*: MinOperatorKind of minProcOp: prc*: MinOperatorProc of minValOp: quotation*: bool val*: MinValue MinStack* = seq[MinValue] In* = var MinInterpreter MinInterpreter* = object stack*: MinStack trace*: MinStack stackcopy*: MinStack pwd*: string scope*: ref MinScope parser*: MinParser currSym*: MinValue filename*: string evaluating*: bool MinParsingError* = ref object of ValueError MinUndefinedError* = ref object of ValueError MinEmptyStackError* = ref object of ValueError MinInvalidError* = ref object of ValueError MinOutOfBoundsError* = ref object of ValueError # Helpers proc raiseInvalid*(msg: string) {.extern:"min_exported_symbol_$1".}= raise MinInvalidError(msg: msg) proc raiseUndefined*(msg: string) {.extern:"min_exported_symbol_$1".}= raise MinUndefinedError(msg: msg) proc raiseOutOfBounds*(msg: string) {.extern:"min_exported_symbol_$1".}= raise MinOutOfBoundsError(msg: msg) proc raiseEmptyStack*() {.extern:"min_exported_symbol_$1".}= raise MinEmptyStackError(msg: "Insufficient items on the stack") proc dVal*(v: MinValue): CritBitTree[MinOperator] {.inline, extern:"min_exported_symbol_$1".}= if v.kind != minDictionary: raiseInvalid("dVal - Dictionary expected, got " & $v.kind) if v.scope.isNil: return CritBitTree[MinOperator]() return v.scope.symbols const errorMessages: array[MinParserError, string] = [ "no error", "invalid token", "string expected", "')' expected", "'}' expected", "'\"' expected", "'*/' expected", "EOF expected", "expression expected" ] tokToStr: array[MinTokenKind, string] = [ "invalid token", "EOF", "string literal", "int literal", "float literal", "(", ")", "{", "}", "symbol", "true", "false" ] proc newScope*(parent: ref MinScope, kind = minLangScope): MinScope {.extern:"min_exported_symbol_$1".}= result = MinScope(parent: parent, kind: kind) proc newScopeRef*(parent: ref MinScope, kind = minLangScope): ref MinScope {.extern:"min_exported_symbol_$1".}= new(result) result[] = newScope(parent, kind) proc open*(my: var MinParser, input: Stream, filename: string) {.extern:"min_exported_symbol_$1".}= lexbase.open(my, input) my.filename = filename my.state = @[stateStart] my.kind = eMinError my.a = "" proc close*(my: var MinParser) {.inline, extern:"min_exported_symbol_$1".}= lexbase.close(my) proc getInt*(my: MinParser): int {.inline, extern:"min_exported_symbol_$1".}= assert(my.kind == eMinInt) return parseint(my.a) proc getFloat*(my: MinParser): float {.inline, extern:"min_exported_symbol_$1".}= assert(my.kind == eMinFloat) return parseFloat(my.a) proc kind*(my: MinParser): MinEventKind {.inline, extern:"min_exported_symbol_$1".}= return my.kind proc getColumn*(my: MinParser): int {.inline, extern:"min_exported_symbol_$1".}= result = getColNumber(my, my.bufpos) proc getLine*(my: MinParser): int {.inline, extern:"min_exported_symbol_$1".}= result = my.lineNumber proc getFilename*(my: MinParser): string {.inline, extern:"min_exported_symbol_$1".}= result = my.filename proc errorMsg*(my: MinParser, msg: string): string {.extern:"min_exported_symbol_$1".}= assert(my.kind == eMinError) result = "$1 [l:$2, c:$3] ERROR - $4" % [ my.filename, $getLine(my), $getColumn(my), msg] proc errorMsg*(my: MinParser): string {.extern:"min_exported_symbol_$1_2".}= assert(my.kind == eMinError) result = errorMsg(my, errorMessages[my.err]) proc errorMsgExpected*(my: MinParser, e: string): string {.extern:"min_exported_symbol_$1".}= result = errorMsg(my, e & " expected") proc raiseParsing*(p: MinParser, msg: string) {.noinline, noreturn, extern:"min_exported_symbol_$1".}= raise MinParsingError(msg: errorMsgExpected(p, msg)) proc raiseUndefined*(p:MinParser, msg: string) {.noinline, noreturn, extern:"min_exported_symbol_$1_2".}= raise MinUndefinedError(msg: errorMsg(p, msg)) proc parseNumber(my: var MinParser) = var pos = my.bufpos var buf = my.buf if buf[pos] == '-': add(my.a, '-') inc(pos) if buf[pos] == '.': add(my.a, "0.") inc(pos) else: while buf[pos] in Digits: add(my.a, buf[pos]) inc(pos) if buf[pos] == '.': add(my.a, '.') inc(pos) # digits after the dot: while buf[pos] in Digits: add(my.a, buf[pos]) inc(pos) if buf[pos] in {'E', 'e'}: add(my.a, buf[pos]) inc(pos) if buf[pos] in {'+', '-'}: add(my.a, buf[pos]) inc(pos) while buf[pos] in Digits: add(my.a, buf[pos]) inc(pos) my.bufpos = pos proc handleHexChar(c: char, x: var int): bool = result = true # Success case c of '0'..'9': x = (x shl 4) or (ord(c) - ord('0')) of 'a'..'f': x = (x shl 4) or (ord(c) - ord('a') + 10) of 'A'..'F': x = (x shl 4) or (ord(c) - ord('A') + 10) else: result = false # error proc parseString(my: var MinParser): MinTokenKind = result = tkString var pos = my.bufpos + 1 var buf = my.buf while true: case buf[pos] of '\0': my.err = errQuoteExpected result = tkError break of '"': inc(pos) break of '\\': case buf[pos+1] of '\\', '"', '\'', '/': add(my.a, buf[pos+1]) inc(pos, 2) of 'b': add(my.a, '\b') inc(pos, 2) of 'f': add(my.a, '\f') inc(pos, 2) of 'n': add(my.a, '\L') inc(pos, 2) of 'r': add(my.a, '\C') inc(pos, 2) of 't': add(my.a, '\t') inc(pos, 2) of 'u': inc(pos, 2) var r: int if handleHexChar(buf[pos], r): inc(pos) if handleHexChar(buf[pos], r): inc(pos) if handleHexChar(buf[pos], r): inc(pos) if handleHexChar(buf[pos], r): inc(pos) add(my.a, toUTF8(Rune(r))) else: # don't bother with the error add(my.a, buf[pos]) inc(pos) of '\c': pos = lexbase.handleCR(my, pos) buf = my.buf add(my.a, '\c') of '\L': pos = lexbase.handleLF(my, pos) buf = my.buf add(my.a, '\L') else: add(my.a, buf[pos]) inc(pos) my.bufpos = pos # store back proc parseSymbol(my: var MinParser): MinTokenKind = result = tkSymbol var pos = my.bufpos var buf = my.buf if not(buf[pos] in Whitespace): while not(buf[pos] in WhiteSpace) and not(buf[pos] in ['\0', ')', '(', '}', '{']): if buf[pos] == '"': add(my.a, buf[pos]) my.bufpos = pos let r = parseString(my) if r == tkError: result = tkError return add(my.a, buf[pos]) return else: add(my.a, buf[pos]) inc(pos) my.bufpos = pos proc skip(my: var MinParser) = var pos = my.bufpos var buf = my.buf while true: case buf[pos] of ';': # skip line comment: inc(pos, 2) while true: case buf[pos] of '\0': break of '\c': pos = lexbase.handleCR(my, pos) buf = my.buf break of '\L': pos = lexbase.handleLF(my, pos) buf = my.buf break else: inc(pos) of '/': if buf[pos+1] == '/': # skip line comment: inc(pos, 2) while true: case buf[pos] of '\0': break of '\c': pos = lexbase.handleCR(my, pos) buf = my.buf break of '\L': pos = lexbase.handleLF(my, pos) buf = my.buf break else: inc(pos) elif buf[pos+1] == '*': # skip long comment: inc(pos, 2) while true: case buf[pos] of '\0': my.err = errEOC_Expected break of '\c': pos = lexbase.handleCR(my, pos) buf = my.buf of '\L': pos = lexbase.handleLF(my, pos) buf = my.buf of '*': inc(pos) if buf[pos] == '/': inc(pos) break else: inc(pos) else: break of ' ', '\t': inc(pos) of '\c': pos = lexbase.handleCR(my, pos) buf = my.buf of '\L': pos = lexbase.handleLF(my, pos) buf = my.buf else: break my.bufpos = pos proc getToken*(my: var MinParser): MinTokenKind {.extern:"min_exported_symbol_$1".}= setLen(my.a, 0) skip(my) case my.buf[my.bufpos] of '-', '.': if my.bufpos+1 <= my.buf.len and my.buf[my.bufpos+1] in '0'..'9': parseNumber(my) if {'.', 'e', 'E'} in my.a: result = tkFloat else: result = tkInt else: result = parseSymbol(my) of '0'..'9': parseNumber(my) if {'.', 'e', 'E'} in my.a: result = tkFloat else: result = tkInt of '"': result = parseString(my) of '(': inc(my.bufpos) result = tkBracketLe of ')': inc(my.bufpos) result = tkBracketRi of '{': inc(my.bufpos) result = tkBraceLe of '}': inc(my.bufpos) result = tkBraceRi of '\0': result = tkEof else: result = parseSymbol(my) case my.a of "true": result = tkTrue of "false": result = tkFalse else: discard my.token = result proc next*(my: var MinParser) {.extern:"min_exported_symbol_$1".}= var tk = getToken(my) var i = my.state.len-1 case my.state[i] of stateEof: if tk == tkEof: my.kind = eMinEof else: my.kind = eMinError my.err = errEofExpected of stateStart: case tk of tkString, tkInt, tkFloat, tkTrue, tkFalse: my.state[i] = stateEof # expect EOF next! my.kind = MinEventKind(ord(tk)) of tkBracketLe: my.state.add(stateQuotation) # we expect any my.kind = eMinQuotationStart of tkBraceLe: my.state.add(stateDictionary) # we expect any my.kind = eMinDictionaryStart of tkEof: my.kind = eMinEof else: my.kind = eMinError my.err = errEofExpected of stateQuotation: case tk of tkString, tkInt, tkFloat, tkTrue, tkFalse: my.kind = MinEventKind(ord(tk)) of tkBracketLe: my.state.add(stateQuotation) my.kind = eMinQuotationStart of tkBraceLe: my.state.add(stateDictionary) my.kind = eMinDictionaryStart of tkBracketRi: my.kind = eMinQuotationEnd discard my.state.pop() of tkBraceRi: my.kind = eMinDictionaryEnd discard my.state.pop() else: my.kind = eMinError my.err = errBracketRiExpected of stateDictionary: case tk of tkString, tkInt, tkFloat, tkTrue, tkFalse: my.kind = MinEventKind(ord(tk)) of tkBracketLe: my.state.add(stateQuotation) my.kind = eMinQuotationStart of tkBraceLe: my.state.add(stateDictionary) my.kind = eMinDictionaryStart of tkBracketRi: my.kind = eMinQuotationEnd discard my.state.pop() of tkBraceRi: my.kind = eMinDictionaryEnd discard my.state.pop() else: my.kind = eMinError my.err = errBraceRiExpected of stateExpectValue: case tk of tkString, tkInt, tkFloat, tkTrue, tkFalse: my.kind = MinEventKind(ord(tk)) of tkBracketLe: my.state.add(stateQuotation) my.kind = eMinQuotationStart of tkBraceLe: my.state.add(stateDictionary) my.kind = eMinDictionaryStart else: my.kind = eMinError my.err = errExprExpected proc eat(p: var MinParser, token: MinTokenKind) {.extern:"min_exported_symbol_$1".}= if p.token == token: discard getToken(p) else: raiseParsing(p, tokToStr[token]) proc `$`*(a: MinValue): string {.inline, extern:"min_exported_symbol_$1".}= case a.kind: of minBool: return $a.boolVal of minSymbol: return a.symVal of minString: return "\"$1\"" % a.strVal.replace("\"", "\\\"") of minInt: return $a.intVal of minFloat: return $a.floatVal of minQuotation: var q = "(" for i in a.qVal: q = q & $i & " " q = q.strip & ")" return q of minDictionary: var d = "{" for i in a.dVal.pairs: var v = "" if i.val.kind == minProcOp: v = "<native>" else: v = $i.val.val d = d & v & " :" & $i.key & " " if a.objType != "": d = d & ";" & a.objType d = d.strip & "}" return d proc `$$`*(a: MinValue): string {.inline, extern:"min_exported_symbol_$1".}= case a.kind: of minBool: return $a.boolVal of minSymbol: return a.symVal of minString: return a.strVal of minInt: return $a.intVal of minFloat: return $a.floatVal of minQuotation: var q = "(" for i in a.qVal: q = q & $i & " " q = q.strip & ")" return q of minDictionary: var d = "{" for i in a.dVal.pairs: var v = "" if i.val.kind == minProcOp: v = "<native>" else: v = $i.val.val d = d & v & " :" & $i.key & " " if a.objType != "": d = d & ";" & a.objType d = d.strip & "}" return d proc parseMinValue*(p: var MinParser, i: In): MinValue {.extern:"min_exported_symbol_$1".}= case p.token of tkTrue: result = MinValue(kind: minBool, boolVal: true) discard getToken(p) of tkFalse: result = MinValue(kind: minBool, boolVal: false) discard getToken(p) of tkString: result = MinValue(kind: minString, strVal: p.a) p.a = "" discard getToken(p) of tkInt: result = MinValue(kind: minInt, intVal: parseint(p.a)) discard getToken(p) of tkFloat: result = MinValue(kind: minFloat, floatVal: parseFloat(p.a)) discard getToken(p) of tkBracketLe: var q = newSeq[MinValue](0) discard getToken(p) while p.token != tkBracketRi: q.add p.parseMinValue(i) eat(p, tkBracketRi) result = MinValue(kind: minQuotation, qVal: q) of tkBraceLe: var scope = newScopeRef(nil) var val: MinValue discard getToken(p) var c = 0 while p.token != tkBraceRi: c = c+1 let v = p.parseMinValue(i) if val.isNil: val = v elif v.kind == minSymbol: let key = v.symVal if key[0] == ':': scope.symbols[key[1 .. key.len-1]] = MinOperator(kind: minValOp, val: val, sealed: false) val = nil else: raiseInvalid("Invalid dictionary key: " & key) else: raiseInvalid("Invalid dictionary key: " & $v) eat(p, tkBraceRi) if c mod 2 != 0: raiseInvalid("Invalid dictionary") result = MinValue(kind: minDictionary, scope: scope) of tkSymbol: result = MinValue(kind: minSymbol, symVal: p.a, column: p.getColumn, line: p.lineNumber, filename: p.filename) p.a = "" discard getToken(p) else: let err = "Undefined or invalid value: "&p.a raiseUndefined(p, err) result.filename = p.filename proc compileMinValue*(p: var MinParser, i: In, push = true, indent = ""): seq[string] {.extern:"min_exported_symbol_$1".}= var op = indent if push: op = indent&"i.push " result = newSeq[string](0) case p.token of tkTrue: result = @[op&"MinValue(kind: minBool, boolVal: true)"] discard getToken(p) of tkFalse: result = @[op&"MinValue(kind: minBool, boolVal: false)"] discard getToken(p) of tkString: result = @[op&"MinValue(kind: minString, strVal: "&p.a.escapeEx&")"] p.a = "" discard getToken(p) of tkInt: result = @[op&"MinValue(kind: minInt, intVal: "&p.a&")"] discard getToken(p) of tkFloat: result = @[op&"MinValue(kind: minFloat, floatVal: "&p.a&")"] discard getToken(p) of tkBracketLe: var qvar = "q" & $genOid() result.add indent&"var "&qvar&" = newSeq[MinValue](0)" discard getToken(p) while p.token != tkBracketRi: var instructions = p.compileMinValue(i, false, indent) let v = instructions.pop result = result.concat(instructions) result.add indent&qvar&".add "&v eat(p, tkBracketRi) result.add op&"MinValue(kind: minQuotation, qVal: "&qvar&")" of tkBraceLe: result = newSeq[string](0) var val: MinValue discard getToken(p) var c = 0 var valInitialized = false var scopevar = "scope" & $genOid() var valvar = "val" & $genOid() while p.token != tkBraceRi: c = c+1 var instructions = p.compileMinValue(i, false, indent) let v = p.parseMinValue(i) let vs = instructions.pop result = result.concat(instructions) if val.isNil: if not valInitialized: result.add indent&"var "&valvar&": MinValue" valInitialized = true result.add indent&valvar&" = "&vs elif v.kind == minSymbol: let key = v.symVal if key[0] == ':': result.add indent&scopevar&".symbols["&key[1 .. key.len-1]&"] = MinOperator(kind: minValOp, val: "&valvar&", sealed: false)" val = nil else: raiseInvalid("Invalid dictionary key: " & key) else: raiseInvalid("Invalid dictionary key: " & $v) eat(p, tkBraceRi) if c mod 2 != 0: raiseInvalid("Invalid dictionary") result.add indent&"var "&scopevar&" = newScopeRef(nil)" result.add op&"MinValue(kind: minDictionary, scope: "&scopevar&")" of tkSymbol: result = @[op&"MinValue(kind: minSymbol, symVal: "&p.a.escapeEx&", column: " & $p.getColumn & ", line: " & $p.lineNumber & ", filename: "&p.filename.escapeEx&")"] p.a = "" discard getToken(p) else: raiseUndefined(p, "Undefined value: '"&p.a&"'") proc print*(a: MinValue) {.extern:"min_exported_symbol_$1".}= stdout.write($$a) # Predicates proc isSymbol*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minSymbol proc isQuotation*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minQuotation proc isString*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minString proc isFloat*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minFloat proc isInt*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minInt proc isNumber*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.kind == minInt or s.kind == minFloat proc isBool*(s: MinValue): bool = return s.kind == minBool proc isStringLike*(s: MinValue): bool {.extern:"min_exported_symbol_$1".}= return s.isSymbol or s.isString or (s.isQuotation and s.qVal.len == 1 and s.qVal[0].isSymbol) proc isDictionary*(q: MinValue): bool {.extern:"min_exported_symbol_$1".}= return q.kind == minDictionary proc isTypedDictionary*(q: MinValue): bool {.extern:"min_exported_symbol_$1".}= if q.isDictionary: return q.objType != "" return false proc isTypedDictionary*(q: MinValue, t: string): bool {.extern:"min_exported_symbol_$1_2".}= if q.isTypedDictionary: return q.objType == t return false proc `==`*(a: MinValue, b: MinValue): bool {.inline, extern:"min_exported_symbol_eqeq".}= if not (a.kind == b.kind or (a.isNumber and b.isNumber)): return false if a.kind == minSymbol and b.kind == minSymbol: return a.symVal == b.symVal elif a.kind == minInt and b.kind == minInt: return a.intVal == b.intVal elif a.kind == minInt and b.kind == minFloat: return a.intVal.float == b.floatVal.float elif a.kind == minFloat and b.kind == minFloat: return a.floatVal == b.floatVal elif a.kind == minFloat and b.kind == minInt: return a.floatVal == b.intVal.float elif a.kind == b.kind: if a.kind == minString: return a.strVal == b.strVal elif a.kind == minBool: return a.boolVal == b.boolVal elif a.kind == minQuotation: if a.qVal.len == b.qVal.len: var c = 0 for item in a.qVal: if item == b.qVal[c]: c.inc else: return false return true else: return false elif a.kind == minDictionary: let aVal = a.dVal let bVal = b.dVal if aVal.len != bVal.len: return false else: for t in aVal.pairs: if not bVal.hasKey(t.key): return false let v1 = t.val let v2 = bVal[t.key] if v1.kind != v2.kind: return false if v1.kind == minValOp: return v1.val == v2.val if a.objType == "" and b.objType == "": return true elif a.objType != "" and b.objType != "": return a.objType == b.objType else: return false else: return false |