core/utils.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 |
import tables, strutils, macros, critbits
import types, parser, interpreter
template minsym*(name: string, i: expr, body: stmt): stmt {.immediate.} =
ROOT.symbols[name] = proc (i: var MinInterpreter) {.closure.} =
body
template minsigil*(name: char, i: expr, body: stmt): stmt {.immediate.} =
ROOT.sigils[name] = proc (i: var MinInterpreter) =
body
proc isSymbol*(s: MinValue): bool =
return s.kind == minSymbol
proc isQuotation*(s: MinValue): bool =
return s.kind == minQuotation
proc isString*(s: MinValue): bool =
return s.kind == minString
proc isFloat*(s: MinValue): bool =
return s.kind == minFloat
proc isInt*(s: MinValue): bool =
return s.kind == minInt
proc isNumber*(s: MinValue): bool =
return s.kind == minInt or s.kind == minFloat
proc isBool*(s: MinValue): bool =
return s.kind == minBool
proc newVal*(s: string): MinValue =
return MinValue(kind: minString, strVal: s)
proc newVal*(q: seq[MinValue]): MinValue =
return MinValue(kind: minQuotation, qVal: q)
proc newVal*(s: int): MinValue =
return MinValue(kind: minInt, intVal: s)
proc newVal*(s: float): MinValue =
return MinValue(kind: minFloat, floatVal: s)
proc newVal*(s: bool): MinValue =
return MinValue(kind: minBool, boolVal: s)
proc warn*(s: string) =
stderr.writeLine s
proc linrec*(i: var MinInterpreter, p, t, r1, r2: MinValue) =
i.push p.qVal
var check = i.pop
if check.isBool and check.boolVal == true:
i.push t.qVal
else:
i.push r1.qVal
i.linrec(p, t, r1, r2)
i.push r2.qVal
|