core/utils.nim
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import tables, strutils, macros, critbits import types, parser, interpreter 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 proc previous*(scope: ref MinScope): ref MinScope = if scope.parent.isNil: return ROOT else: return scope.parent proc define*(name: string): ref MinScope = var scope = new MinScope scope.name = name scope.parent = INTERPRETER.scope return scope proc symbol*(scope: ref MinScope, sym: string, p: MinOperator): ref MinScope = scope.symbols[sym] = p scope.previous.symbols[scope.name & ":" & sym] = p return scope proc sigil*(scope: ref MinScope, sym: string, p: MinOperator): ref MinScope = scope.previous.sigils[sym] = p return scope proc finalize*(scope: ref MinScope) = var mdl = newSeq[MinValue](0).newVal mdl.scope = scope mdl.scope.previous.symbols[scope.name] = proc(i: var MinInterpreter) = i.evaluating = true i.push mdl i.evaluating = false 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 |