def quasiquote(self, compiler, cont):
result = compiler.new_var(il.LocalVar('result'))
vars = tuple(compiler.new_var(il.ConstLocalVar('a'+repr(i))) for i in range(len(self.args)))
body = (il.Assign(result, il.empty_list),)+tuple(
il.If(il.Isinstance(var, il.Klass('UnquoteSplice')),
il.AddAssign(result, il.Call(il.Symbol('list'), il.Attr(var, il.Symbol('item')))),
il.ListAppend(result, var),
) for var in vars)+(
cont(il.Call(il.Klass(self.__class__.__name__), il.QuoteItem(self.function), il.MakeTuple(result))),)
fun = il.begin(*body)
for var, arg in reversed(zip(vars, self.args)):
fun = arg.quasiquote(compiler, il.clamda(var, fun))
return fun
def char(compiler, cont, argument):
text = compiler.new_var(il.ConstLocalVar('text'))
pos = compiler.new_var(il.ConstLocalVar('pos'))
if isinstance(argument, String):
argument = argument.interlang()
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.If(il.Ge(pos, il.Len(text)),
il.failcont(il.NONE),
il.If(il.Eq(argument, il.GetItem(text, pos)),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, il.add(pos, il.Integer(1)))),
cont(il.GetItem(text, pos))),
il.failcont(il.NONE)))))
elif isinstance(argument, Var):
v = compiler.new_var(il.ConstLocalVar('v'))
argument = argument.interlang()
argument1 = compiler.new_var(il.ConstLocalVar('argument'))
return il.Begin((
il.AssignFromList(text, pos, il.parse_state),
il.If(il.Ge(pos,il.Len(text)),
il.failcont(il.FALSE),
il.Begin((
il.Assign(argument1, il.Deref(argument)),
#il.Prin(text), il.Prin(pos), il.PrintLn(argument1),
il.If(il.Isinstance(argument1, il.Symbol('str')),
il.If(il.Eq(argument1, il.GetItem(text, pos)),
il.begin(il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos))),
il.SetParseState(il.Tuple(text, il.add(pos, il.Integer(1)))),
cont(il.GetItem(text, pos))),
il.failcont(il.NONE)),
il.If(il.IsLogicVar(argument1),
il.begin(il.SetParseState(il.Tuple(text, il.add(pos, il.Integer(1)))),
il.SetBinding(argument1, il.GetItem(text, pos)),
il.append_failcont(compiler,
il.SetParseState(il.Tuple(text, pos)),
il.DelBinding(argument1)),
cont(il.GetItem(text, pos))),
il.RaiseTypeError(argument1))))))))
# elif isinstance(argument, il.LogicVar) #how about this? It should be include above.
else: raise CompileTypeError(argument)
def interlang(self): return il.Symbol(self.item)
def isstr(compiler, cont, item):
return cont(il.Isinstance(item.interlang(), il.Symbol('str')))
def isnumber(compiler, cont, item):
return cont(
il.or_(il.Isinstance(item.interlang(), il.Symbol('int')),
il.Isinstance(item.interlang(), il.Symbol('float'))))
def isfloat(compiler, cont, item):
return cont(il.Isinstance(item.interlang(), il.Symbol('float')))
def istuple(compiler, cont, item):
return cont(il.Isinstance(item.interlang(), il.Symbol('tuple')))
