minpkg/core/utils.nim
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import std/[strutils, critbits] import baseutils, parser, value, json, env, interpreter # Library methods proc define*(i: In): ref MinScope = var scope = newScopeRef(i.scope, minNativeScope) scope.parent = i.scope return scope proc symbol*(scope: ref MinScope, sym: string, p: MinOperatorProc) {.effectsOf: p.} = scope.symbols[sym] = MinOperator(prc: p, kind: minProcOp, sealed: true) proc symbol*(scope: ref MinScope, sym: string, v: MinValue) = scope.symbols[sym] = MinOperator(val: v, kind: minValOp, sealed: true) proc sigil*(scope: ref MinScope, sym: string, p: MinOperatorProc) {.effectsOf: p.} = scope.sigils[sym] = MinOperator(prc: p, kind: minProcOp, sealed: true) proc sigil*(scope: ref MinScope, sym: string, v: MinValue) = scope.sigils[sym] = MinOperator(val: v, kind: minValOp, sealed: true) proc finalize*(scope: ref MinScope, name: string = "") = var mdl = newDict(scope) mdl.scope = scope mdl.objType = "module" let op = proc(i: In) {.closure.} = i.evaluating = true i.push mdl i.evaluating = false if name != "": scope.previous.symbols[name] = MinOperator(kind: minProcOp, prc: op, mdl: mdl) # Dictionary Methods proc dget*(i: In, q: MinValue, s: MinValue): MinValue = if not q.isDictionary: raiseInvalid("Value is not a dictionary") if q.dVal[s.getString].kind == minProcOp: raiseInvalid("Key '$1' is set to an operator and it cannot be retrieved." % [s.getString]) result = q.dVal[s.getString].val proc dget*(i: In, q: MinValue, s: string): MinValue = if not q.isDictionary: raiseInvalid("Value is not a dictionary") if q.dVal[s].kind == minProcOp: raiseInvalid("Key $1 is set to an operator and it cannot be retrieved." % [s]) result = q.dVal[s].val proc dhas*(q: MinValue, s: MinValue): bool = if not q.isDictionary: raiseInvalid("Value is not a dictionary") return q.dVal.contains(s.getString) proc dhas*(q: MinValue, s: string): bool = if not q.isDictionary: raiseInvalid("Value is not a dictionary") return q.dVal.contains(s) proc ddel*(i: In, p: var MinValue, s: MinValue): MinValue {.discardable.} = if not p.isDictionary: raiseInvalid("Value is not a dictionary") excl(p.scope.symbols, s.getString) return p proc ddel*(i: In, p: var MinValue, s: string): MinValue {.discardable, extern: "min_exported_symbol_$1_2".} = if not p.isDictionary: raiseInvalid("Value is not a dictionary") excl(p.scope.symbols, s) return p proc dset*(i: In, p: var MinValue, s: MinValue, m: MinValue): MinValue {.discardable.} = if not p.isDictionary: raiseInvalid("Value is not a dictionary") var q = m p.scope.symbols[s.getString] = MinOperator(kind: minValOp, val: q, sealed: false) return p proc dset*(i: In, p: var MinValue, s: string, m: MinValue): MinValue {.discardable, extern: "min_exported_symbol_$1_2".} = if not p.isDictionary: raiseInvalid("Value is not a dictionary") var q = m p.scope.symbols[s] = MinOperator(kind: minValOp, val: q, sealed: false) return p proc keys*(i: In, q: MinValue): MinValue = # Assumes q is a dictionary var r = newSeq[MinValue](0) for i in q.dVal.keys: r.add newVal(i) return r.newVal proc values*(i: In, q: MinValue): MinValue = # Assumes q is a dictionary var r = newSeq[MinValue](0) for item in q.dVal.values: if item.kind == minProcOp: raiseInvalid("Dictionary contains operators that cannot be accessed.") r.add item.val return r.newVal proc pairs*(i: In, q: MinValue): MinValue = # Assumes q is a dictionary var r = newSeq[MinValue](0) for key, value in q.dVal.pairs: if value.kind == minProcOp: raiseInvalid("Dictionary contains operators that cannot be accessed.") var p = newSeq[MinValue](0) p.add value.val p.add key.newVal r.add p.newVal return r.newVal # JSON interop proc `%`*(i: In, a: MinValue): JsonNode = case a.kind: of minBool: return %a.boolVal of minNull: return newJNull() of minSymbol: return %(";sym:$1" % [a.getstring]) of minCommand: return %(";cmd:$1" % [a.getstring]) of minString: return %a.strVal of minInt: return %a.intVal of minFloat: return %a.floatVal of minQuotation: result = newJArray() for it in a.qVal: result.add(i%it) of minDictionary: result = newJObject() for it in a.dVal.pairs: result[it.key] = i%i.dget(a, it.key) proc fromJson*(i: In, json: JsonNode): MinValue = case json.kind: of JNull: result = newNull() of JBool: result = json.getBool.newVal of JInt: result = json.getBiggestInt.newVal of JFloat: result = json.getFloat.newVal of JString: let s = json.getStr if s.startsWith(";sym:"): result = s.replace(";sym:", "").newSym elif s.startsWith(";cmd:"): result = s.replace(";cmd:", "").newCmd else: result = json.getStr.newVal of JObject: var res = newDict(i.scope) for key, value in json.pairs: discard i.dset(res, key, i.fromJson(value)) return res of JArray: var res = newSeq[MinValue](0) for value in json.items: res.add i.fromJson(value) return res.newVal # Validators proc validate*(i: In, value: MinValue, t: string, generics: var CritBitTree[string]): bool proc validateValueType*(i: var MinInterpreter, element: string, value: MinValue, generics: var CritBitTree[string], vTypes: var seq[string], c: int): bool = vTypes.add value.typeName let ors = element.split("|") for to in ors: let ands = to.split("&") var andr = true for ta in ands: var t = ta var neg = false if t.len > 1 and t[0] == '!': t = t[1..t.len-1] neg = true andr = i.validate(value, t, generics) if neg: andr = not andr if not andr: if neg: vTypes[c] = t else: vTypes[c] = value.typeName break if andr: result = true break proc validateValueType*(i: var MinInterpreter, element: string, value: MinValue): bool = var g: CritBitTree[string] var s = newSeq[string](0) var c = 0 return i.validateValueType(element, value, g, s, c) proc basicValidate*(i: In, value: MinValue, t: string): bool = case t: of "bool": return value.isBool of "null": return value.isNull of "int": return value.isInt of "num": return value.isNumber of "quot": return value.isQuotation of "cmd": return value.isCommand of "dict": return value.isDictionary of "'sym": return value.isStringLike of "sym": return value.isSymbol of "flt": return value.isFloat of "str": return value.isString of "a": return true else: let tc = "typeclass:$#" % t let ta = "typealias:$#" % t let taSym = i.scope.getSymbol(ta) if t.contains(":"): var split = t.split(":") # Typed dictionaries if split[0] == "dict": if value.isTypedDictionary(split[1]): return true return false elif not taSym.isNull: # Custom type alias let element = taSym.val.getString return i.validateValueType(element, value) elif not i.scope.getSymbol(tc).isNull: # Custom type class var i2 = i.copy(i.filename) i2.withScope(): i2.push value i2.pushSym("typeclass:$#" % t) let res = i2.pop if not res.isBool: raiseInvalid("Type class '$#' does not evaluate to a boolean value ($# was returned instead)" % [t, $res]) return res.boolVal else: raiseInvalid("Unknown type '$#'" % t) proc validate*(i: In, value: MinValue, t: string, generics: var CritBitTree[ string]): bool = if generics.hasKey(t): let ts = generics[t].split("|") for tp in ts: if i.basicValidate(value, tp): generics[t] = tp # lock type for future uses within same signature return true return false return i.basicValidate(value, t) proc validate*(i: In, value: MinValue, t: string): bool = return i.basicValidate(value, t) proc validType*(i: In, s: string): bool = const ts = ["bool", "null", "int", "num", "flt", "quot", "dict", "'sym", "sym", "str", "a"] if ts.contains(s): return true if not i.scope.getSymbol("typeclass:$#" % s).isNull: return true for ta in s.split("|"): for to in ta.split("&"): var tt = to if to.len < 2: return false if to[0] == '!': tt = to[1..to.len-1] if not ts.contains(tt) and not tt.startsWith("dict:") and i.scope.getSymbol("typeclass:$#" % tt).isNull: let ta = "typealias:$#" % tt let taSym = i.scope.getSymbol(ta) if not taSym.isNull: return i.validType(taSym.val.getString) return false return true # The following is used in operator signatures proc expect*(i: var MinInterpreter, elements: varargs[string], generics: var CritBitTree[string]): seq[MinValue] = if not DEV: # Ignore validation, just return elements result = newSeq[MinValue](0) for el in elements: result.add i.pop return result let sym = i.currSym.getString var valid = newSeq[string](0) result = newSeq[MinValue](0) let message = proc(invalid: string, elements: varargs[string], generics: CritBitTree[string]): string = var pelements = newSeq[string](0) for e in elements.reverse: if generics.hasKey(e): pelements.add(generics[e]) else: pelements.add e let stack = pelements.join(" ") result = "Incorrect values found on the stack:\n" result &= "- expected: " & stack & " $1\n" % sym var other = "" if valid.len > 0: other = valid.reverse.join(" ") & " " result &= "- got: " & invalid & " " & other & sym var res = false var vTypes = newSeq[string](0) var c = 0 for el in elements: let value = i.pop result.add value res = i.validateValueType(el, value, generics, vTypes, c) if res: valid.add el elif generics.hasKey(el): valid.add(generics[el]) else: raiseInvalid(message(vTypes[c], elements, generics)) c = c+1 # The following is used in expect symbol and native symbol expectations. proc expect*(i: var MinInterpreter, elements: varargs[string]): seq[MinValue] = var c: CritBitTree[string] return i.expect(elements, c) proc reqQuotationOfQuotations*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation: raiseInvalid("A quotation is required on the stack") for s in a.qVal: if not s.isQuotation: raiseInvalid("A quotation of quotations is required on the stack") proc reqQuotationOfNumbers*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation: raiseInvalid("A quotation is required on the stack") for s in a.qVal: if not s.isNumber: raiseInvalid("A quotation of numbers is required on the stack") proc reqQuotationOfIntegers*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation: raiseInvalid("A quotation is required on the stack") for s in a.qVal: if not s.isInt: raiseInvalid("A quotation of integers is required on the stack") proc reqQuotationOfSymbols*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation: raiseInvalid("A quotation is required on the stack") for s in a.qVal: if not s.isSymbol: raiseInvalid("A quotation of symbols is required on the stack") proc reqTwoNumbersOrStrings*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isString and b.isString or a.isNumber and b.isNumber): raiseInvalid("Two numbers or two strings are required on the stack") proc reqStringOrQuotation*(i: var MinInterpreter, a: var MinValue) = a = i.pop if not a.isQuotation and not a.isString: raiseInvalid("A quotation or a string is required on the stack") proc reqTwoQuotationsOrStrings*(i: var MinInterpreter, a, b: var MinValue) = a = i.pop b = i.pop if not (a.isQuotation and b.isQuotation or a.isString and b.isString): raiseInvalid("Two quotations or two strings are required on the stack") const SYSTEM_SIGILS* = @[':', '\'', '?', '~', '@', '^'] proc processSymbolValue*(v: string): JsonNode = result = newJArray() var sym = v if SYSTEM_SIGILS.contains(v[0]): sym = v[1..^1] var sigil = newJObject() sigil["subtype"] = %"tkSystemSigil" sigil["value"] = %($v[0]) result.add sigil var syms = sym.split('.') var count = 0 for s in syms: sym = s var symbol = newJObject() var subtype = "tkDict" if syms.len == 1 or count >= syms.len-1: subtype = "tkSymbol" symbol["subtype"] = %subtype symbol["value"] = %sym result.add symbol if count < syms.len-1: var dot = newJObject() dot["subtype"] = %"tkDot" dot["value"] = %"." result.add dot count += 1 if sym.len > 0 and sym[^1] == '!': # Shorten previous symbol let lastVal = result[^1]["value"].getStr result[^1]["value"] = %lastVal[0..^2] var autopop = newJObject() autopop["subtype"] = %"tkAutopop" autopop["value"] = %"!" result.add autopop |