def between(compiler, cont, lower, upper, mid): lower1 = compiler.new_var(il.ConstLocalVar('lower')) upper1 = compiler.new_var(il.ConstLocalVar('upper')) mid1 = compiler.new_var(il.ConstLocalVar('mid')) fc = compiler.new_var(il.ConstLocalVar('fc')) i = compiler.new_var(il.Var('i')) v = compiler.new_var(il.ConstLocalVar('v')) return lower.cps(compiler, il.clamda(lower1, upper.cps(compiler, il.clamda(upper1, mid.cps(compiler, il.clamda(mid1, il.If(il.IsLogicVar(mid1), il.begin( il.Assign(i, lower1), il.Assign(fc, il.failcont), il.SetFailCont(il.clamda(v, il.If(il.Eq(i, upper1), il.Begin(( il.Assign(il.failcont, fc), fc(il.FALSE))), il.Begin(( il.AddAssign(i, il.Integer(1)), il.SetBinding(mid1, i), cont(il.TRUE)))))), il.SetBinding(mid1, lower1), cont(il.TRUE)), il.If(il.Cle(lower1, mid1, upper1), cont(il.TRUE), il.failcont(il.FALSE))))) ))))
def cps_convert_unify(x, y, compiler, cont): try: y.cps_convert_unify except: x = x.interlang() y = y.interlang() x1 = compiler.new_var(il.ConstLocalVar(x.name)) return il.begin( il.Assign(x1, il.Deref(x)), #for LogicVar, could be optimized when generate code. il.If(il.IsLogicVar(x1), il.begin(il.SetBinding(x1, y), il.append_failcont(compiler, il.DelBinding(x1)), cont(il.TRUE)), il.If(il.Eq(x1, y), cont(il.TRUE), il.failcont(il.TRUE)))) x = x.interlang() y = y.interlang() x1 = compiler.new_var(il.ConstLocalVar(x.name)) y1 = compiler.new_var(il.ConstLocalVar(y.name)) return il.begin( il.Assign(x1, il.Deref(x)), #for LogicVar, could be optimized when generate code. il.Assign(y1, il.Deref(y)), il.If(il.IsLogicVar(x1), il.begin(il.SetBinding(x1, y1), il.append_failcont(compiler, il.DelBinding(x1)), cont(il.TRUE)), il.begin( il.If(il.IsLogicVar(y1), il.begin(il.SetBinding(y1, x1), il.append_failcont(compiler, il.DelBinding(y1)), cont(il.TRUE)), il.If(il.Eq(x1, y1), cont(il.TRUE), il.failcont(il.TRUE))))))
def unify_head_item2(compiler, cont, arg, head_item): # for call with rules variable. arg = arg.interlang() if not isinstance(head_item, Var): # arg should be Var if isinstance(head_item, Cons): v = compiler.new_var(il.ConstLocalVar('v')) return do_unify_head_item2(il.ConsHead(arg), head_item.head, compiler, il.clamda(v, do_unify_head_item2(il.ConsTail(arg), head_item.tail, compiler, cont))) else: head_item = head_item.interlang() arg1 = compiler.new_var(il.ConstLocalVar('arg')) return il.begin( il.Assign(arg1, il.Deref(arg)), il.If(il.IsLogicVar(arg1), il.begin(il.SetBinding(arg1, head_item), il.append_failcont(compiler, il.DelBinding(arg1)), cont(il.TRUE)), il.If(il.Eq(arg1, head_item), cont(TRUE), il.failcont(TRUE)))) else: if not isinstance(head_item, LogicVar): return il.begin( il.Assign(head_item.interlang(), arg), cont(il.TRUE)) else: raise CompileTypeError
def string_on_predicate1(compiler, cont, test): '''return current char and step if @test succeed, where @test: a python function with one argument, which tests on one char and return True or False @test must be registered with register_function''' test = test.interlang() text = compiler.new_var(il.ConstLocalVar('text')) pos = compiler.new_var(il.ConstLocalVar('pos')) length = compiler.new_var(il.ConstLocalVar('length')) p = compiler.new_var(il.LocalVar('p')) if not isinstance(test, il.PyFunction): raise DaoCompileTypeError(test) return il.Begin(( il.AssignFromList(text, pos, il.parse_state), il.Assign(length, il.Len(text)), il.If(il.Ge(pos, length), il.failcont(il.FALSE), il.If(il.Call(test, il.GetItem(text, pos)), il.begin( il.Assign(p, il.add(pos, il.Integer(1))), il.While(il.And(il.Lt(p, length), il.Call(test, il.GetItem(text, p))), il.AddAssign(p, il.Integer(1))), il.SetParseState(il.Tuple(text, p)), il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos))), cont(il.GetItem(text, il.Slice2(pos, p)))), il.failcont(il.FALSE)))))
def any2(compiler, cont, item, template, result): template = template.interlang() result = result.interlang() any_cont = compiler.new_var(il.ConstLocalVar('any_cont')) fc = compiler.new_var(il.ConstLocalVar('old_fail_cont')) v = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) v3 = compiler.new_var(il.ConstLocalVar('v')) return il.Begin( (il.Assign(result, il.empty_list), il.cfunction( any_cont, v, il.Assign(fc, il.failcont), il.SetFailCont( il.clamda( v, il.SetFailCont( il.clamda( v3, il.if2(result, il.DelListItem(result, il.Integer(-1))), fc(v3))), cont(v))), item.cps( compiler, il.clamda(v2, il.ListAppend(result, il.GetValue(template)), any_cont(v2))))(il.NONE)))
def unify_macro_head_item2(compiler, cont, arg, head_item): if isinstance(head_item, Var): if not isinstance(head_item, LogicVar): return il.begin( il.Assign(head_item.interlang(), arg), cont(il.TRUE)) else: v = compiler.new_var(il.ConstLocalVar('v')) head_item = head_item.interlang() arg1 = compiler.new_var(il.ConstLocalVar('arg')) head1 = compiler.new_var(il.ConstLocalVar('head')) return il.begin( il.Assign(arg1, il.Deref(arg)), #for LogicVar, could be optimized when generate code. il.Assign(head1, il.Deref(head_item)), il.If(il.IsLogicVar(arg1), il.begin(il.SetBinding(arg1, head1), il.append_failcont(compiler, il.DelBinding(arg1)), cont(il.TRUE)), il.begin( il.If(il.IsLogicVar(head1), il.begin(il.SetBinding(head1, arg1), il.append_failcont(compiler, il.DelBinding(head1)), cont(il.TRUE)), il.If(il.Eq(arg1, head1), cont(il.TRUE), il.failcont(il.FALSE)))))) else: arg1 = compiler.new_var(il.ConstLocalVar('arg')) return il.begin( il.Assign(arg1, il.Deref(arg)), il.If(il.IsLogicVar(arg1), il.begin(il.SetBinding(arg1, head_item), il.append_failcont(compiler, il.DelBinding(arg1)), cont(il.TRUE)), il.If(il.Eq(arg1, head_item), cont(TRUE), il.failcont(TRUE))))
def integer(compiler, cont, arg): '''integer''' text = compiler.new_var(il.ConstLocalVar('text')) pos = compiler.new_var(il.ConstLocalVar('pos')) p = compiler.new_var(il.LocalVar('p')) length = compiler.new_var(il.ConstLocalVar('length')) if isinstance(arg, Var): arg = arg.interlang() x = compiler.new_var(il.ConstLocalVar('x')) return il.Begin(( il.AssignFromList(text, pos, il.parse_state), il.Assign(length, il.Len(text)), il.If(il.Ge(pos, length), il.failcont(il.FALSE), il.If(il.Not(il.Cle(il.String('0'), il.GetItem(text, pos), il.String('9'))), il.failcont(il.FALSE), il.Begin(( il.Assign(p, il.add(pos, il.Integer(1))), il.while_(il.And(il.Lt(p, length), il.Cle(il.String('0'),il.GetItem(text, p),il.String('9'))), il.AddAssign(p, il.Integer(1))), il.Assign(x, il.Deref(arg)), il.If(il.IsLogicVar(x), il.begin(il.SetParseState(il.Tuple(text, p)), il.SetBinding(x, il.GetItem(text, il.Slice2(pos, p))), il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos)), il.DelBinding(x)), cont(il.GetItem(text, pos))), il.If(il.Isinstance(x, il.String('str')), il.If(il.Eq(x, il.GetItem(text, il.Slice2(pos, p))), il.begin(il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos))), il.SetParseState(il.Tuple(text, p)), cont(il.GetItem(text, pos))), il.failcont(il.NONE)), il.RaiseTypeError(x))))))))) elif isinstance(arg, il.String): return il.Begin(( il.AssignFromList(text, pos, il.parse_state), il.Assign(length, il.Len(text)), il.If(il.Ge(pos, length), il.failcont(il.FALSE), il.If(il.Not(il.Cle(il.String('0'), il.GetItem(text, pos), il.String('9'))), il.failcont(il.FALSE), il.Begin(( il.Assign(p, il.add(pos, il.Integer(1))), il.while_(il.And(il.Lt(p, length), il.Cle(il.String('0'),il.GetItem(text, p),il.String('9'))), il.AddAssign(p, il.Integer(1))), il.If(il.Eq(arg, il.GetItem(text, il.Slice2(pos, p))), il.begin(il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos))), il.SetParseState(il.Tuple(text, p)), cont(arg)), il.failcont(il.NONE)))))))) else: raise CompileTypeError
def test_assign2(self): x = il.Var('x') exp = il.begin(il.Assign(x, il.Integer(1)), il.Assign(x, il.Integer(2))) result = optimize(exp) expect = exp eq_(result, expect) eq_(result.statements[0]._removed, True) eq_(result.statements[0].removed(), True)
def test_function2(self): x = il.Var('x') f = il.Var('f') result = optimize( il.Begin((il.Assign(f, il.Lamda( (x, ), f(il.Integer(1)))), il.Apply(f, (il.Integer(3), ))))) expect = il.Begin((il.Assign(f, il.Lamda( (x, ), f(il.Integer(1)))), il.Apply(f, (il.Integer(3), )))) eq_(result, expect)
def parse(compiler, cont, predicate, parse_state): old_parse_state = compiler.new_var(il.ConstLocalVar('old_parse_state')) v = compiler.new_var(il.ConstLocalVar('v')) return il.begin(il.Assign(old_parse_state, il.parse_state), il.SetParseState(parse_state), il.append_failcont(compiler, il.SetParseState(old_parse_state)), predicate.cps(compiler, il.clamda(v, il.Assign(il.parse_state, old_parse_state), cont(v))))
def test_if_assign1(self): x = il.Var('x') y = il.Var('y') exp = il.begin(il.Assign(x, il.Integer(1)), il.if_(y, il.Assign(x, il.Integer(2)), x)) result = optimize(exp) expect = il.begin(il.Assign(x, il.Integer(1)), il.if_(y, il.Assign(x, il.Integer(2)), 1)) eq_(result, expect) eq_(result.statements[0]._removed, il.unknown) eq_(result.statements[0].removed(), True)
def test_if_assign5(self): x = il.Var('x') y = il.Var('y') exp = il.begin( il.Assign(x, il.Integer(1)), il.if_(y, il.Assign(x, il.Integer(2)), il.Assign(x, il.Integer(3))), il.Prin(x)) result = optimize(exp) expect = exp eq_(result, expect) eq_(result.statements[0].removed(), True) eq_(result.statements[1].then.removed(), False)
def contain(compiler, cont, container, member): container1 = compiler.new_var(il.ConstLocalVar('container')) container2 = compiler.new_var(il.ConstLocalVar('container')) member1 = compiler.new_var(il.ConstLocalVar('member')) member2 = compiler.new_var(il.ConstLocalVar('member')) return container.cps( compiler, il.clamda( container1, il.Assign(container2, il.GetValue(container1)), member.cps( compiler, il.clamda( member1, il.Assign(member2, il.GetValue(member1)), il.If(il.In(member2, container2), cont(il.TRUE), il.failcont(il.FALSE))))))
def findall_2(compiler, cont, goal, template, bag): v = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('old_failcont')) bag = bag.interlang() template = template.interlang() return il.begin( il.Assign(bag, il.empty_list), il.Assign(fc, il.failcont), il.SetFailCont(il.clamda(v2, il.SetFailCont(fc), cont(v2))), goal.cps(compiler, il.clamda(v, il.ListAppend(bag, il.GetValue(template)), il.failcont(v))))
def follow(compiler, cont, item): parse_state = compiler.new_var(il.ConstLocalVar('parse_state')) v = compiler.new_var(il.ConstLocalVar('v')) return il.begin( il.Assign(parse_state, il.parse_state), item.cps(compiler, il.clamda(v, il.SetParseState(parse_state), cont(v))))
def once(compiler, cont, exp): v = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('fc')) return il.begin( il.Assign(fc, il.failcont), exp.cps(compiler, il.clamda(v, il.SetFailCont(fc), cont(v))))
def test_letrec(self): f, k, function = il.Var('f'), il.Var('k'), il.Var('function') result = cps(letrec([(f, lamda((), f()))], f())) expect = il.Clamda(v, il.Assign(f, v), v)(il.Lamda( (k, ), il.Clamda(function, function(k))(f))) eq_(result, expect)
def set_sequence(compiler, cont, sequence): old_parse_state = compiler.new_var(il.ConstLocalVar('old_parse_state')) sequence = sequence.interlang() return il.begin(il.Assign(old_parse_state, il.parse_state), il.SetParseState(il.Tuple(sequence, il.Integer(0))), il.append_failcont(compiler, il.SetParseState(old_parse_state)), cont(TRUE))
def first_(compiler, cont, clause1, clause2): v = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('fc')) first_cont = il.clamda(v, il.SetFailCont(fc), cont(v)) return il.begin( il.Assign(fc, il.failcont), il.append_failcont(compiler, clause2.cps(compiler, first_cont)), clause1.cps(compiler, first_cont))
def any1(compiler, cont, item): any_cont = compiler.new_var(il.ConstLocalVar('any_cont')) fc = compiler.new_var(il.ConstLocalVar('old_fail_cont')) v = compiler.new_var(il.ConstLocalVar('v')) return il.cfunction( any_cont, v, il.Assign(fc, il.failcont), il.SetFailCont(il.clamda(v, il.SetFailCont(fc), cont(v))), item.cps(compiler, any_cont))(il.TRUE)
def some1(compiler, cont, item): some_cont = compiler.new_var(il.ConstLocalVar('some_cont')) fc = compiler.new_var(il.ConstLocalVar('old_fail_cont')) v = compiler.new_var(il.ConstLocalVar('v')) some_cont = il.cfunction( some_cont, v, il.Assign(fc, il.failcont), il.SetFailCont(il.clamda(v, il.SetFailCont(fc), cont(v))), item.cps(compiler, some_cont)) return item.cps(compiler, some_cont)
def greedy_some2(compiler, cont, item, template, result): template = template.interlang() result = result.interlang() item_matched = compiler.new_var(il.Var('item_matched')) v = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('old_failcont')) greedy_some_fcont = compiler.new_var(il.ConstLocalVar('greedy_some_fcont')) greedy_some_cont = compiler.new_var(il.ConstLocalVar('greedy_some_cont')) append_result_cont = il.clamda( v2, il.ListAppend(result, il.GetValue(template)), greedy_some_cont(il.TRUE)) return il.begin( il.Assign(result, il.empty_list), il.Assign(fc, il.failcont), il.cfunction(greedy_some_fcont, v, il.SetFailCont(fc), cont(il.TRUE)), il.cfunction(greedy_some_cont, v, il.SetFailCont(greedy_some_fcont), item.cps(compiler, append_result_cont)), item.cps(compiler, append_result_cont))
def catch(compiler, cont, tag, *form): v = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) k = compiler.new_var(il.LocalVar('cont')) return tag.cps( compiler, il.clamda(v, il.Assign(k, il.clamda(v2, cont(v2))), il.PushCatchCont(v, k), begin(*form).cps(compiler, cont)))
def lazy_any2(compiler, cont, item, template, result): template = template.interlang() result = result.interlang() fc = compiler.new_var(il.ConstLocalVar('fc')) lazy_any_cont = compiler.new_var(il.ConstLocalVar('lazy_any_cont')) lazy_any_fcont = compiler.new_var(il.ConstLocalVar('lazy_any_fcont')) v = compiler.new_var(il.ConstLocalVar('v')) v1 = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) return il.begin( il.Assign(result, il.empty_list), il.Assign(fc, il.failcont), il.cfunction( lazy_any_fcont, v, il.SetFailCont(fc), item.cps( compiler, il.clamda(v2, il.ListAppend(result, il.GetValue(template)), lazy_any_cont(il.TRUE)))), il.cfunction(lazy_any_cont, v, il.SetFailCont(lazy_any_fcont), cont(il.TRUE))(il.TRUE))
def greedy_any1(compiler, cont, item): v = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('old_failcont')) greedy_any_fcont = compiler.new_var(il.ConstLocalVar('greedy_any_fcont')) greedy_any_cont = compiler.new_var(il.ConstLocalVar('greedy_any_cont')) return il.begin( il.Assign(fc, il.failcont), il.cfunction(greedy_any_fcont, v, il.SetFailCont(fc), cont(il.TRUE)), il.cfunction(greedy_any_cont, v, il.SetFailCont(greedy_any_fcont), item.cps(compiler, greedy_any_cont))(il.TRUE))
def findall_1(compiler, cont, goal): v = compiler.new_var(il.ConstLocalVar('v')) v2 = compiler.new_var(il.ConstLocalVar('v')) fc = compiler.new_var(il.ConstLocalVar('old_failcont')) return il.begin( il.Assign(fc, il.failcont), il.SetFailCont(il.clamda(v2, il.SetFailCont(fc), cont(v2))), goal.cps(compiler, il.Clamda(v, il.failcont(v))) )
def parse_sequence(compiler, cont, predicate, sequence): old_parse_state = compiler.new_var(il.ConstLocalVar('old_parse_state')) v = compiler.new_var(il.ConstLocalVar('v')) sequence = sequence.interlang() return il.begin(il.Assign(old_parse_state, il.parse_state), il.SetParseState(il.Tuple(sequence, il.Integer(0))), il.append_failcont(compiler, il.SetParseState(old_parse_state)), predicate.cps(compiler, il.clamda(v, il.SetParseState(old_parse_state), cont(v))))
def lazy_any1(compiler, cont, item): fc = compiler.new_var(il.ConstLocalVar('fc')) lazy_any_cont = compiler.new_var(il.ConstLocalVar('lazy_any_cont')) lazy_any_fcont = compiler.new_var(il.ConstLocalVar('lazy_any_fcont')) v = compiler.new_var(il.ConstLocalVar('v')) return il.begin( il.Assign(fc, il.failcont), il.cfunction(lazy_any_fcont, v, il.SetFailCont(fc), item.cps(compiler, lazy_any_cont)), il.cfunction(lazy_any_cont, v, il.SetFailCont(lazy_any_fcont), cont(il.TRUE))(il.TRUE))
def times2(compiler, cont, item, expect_times, template, result): expect_times = expect_times.interlang() template = template.interlang() result = result.interlang() i = compiler.new_var(il.Var('i')) times_cont = compiler.new_var(il.ConstLocalVar('times_cont')) v = compiler.new_var(il.ConstLocalVar('v')) return il.begin( il.Assert( il.And(il.Isinstance(expect_times, il.Int), il.Gt(expect_times, il.Integer(0)))), il.Assign(result, il.empty_list), il.Assign(i, il.Integer(0)), il.cfunction( times_cont, v, item.cps( compiler, il.clamda( v, il.AddAssign(i, il.Integer(1)), il.ListAppend(result, il.GetValue(template)), il.If(il.Eq(i, expect_times), cont(v), times_cont(il.TRUE)))))(il.TRUE))
def literal(compiler, cont, arg): '''any given instance string''' text = compiler.new_var(il.ConstLocalVar('text')) pos = compiler.new_var(il.ConstLocalVar('pos')) p = compiler.new_var(il.LocalVar('p')) i = compiler.new_var(il.LocalVar('i')) x = compiler.new_var(il.ConstLocalVar('x')) length = compiler.new_var(il.ConstLocalVar('length')) length2 = compiler.new_var(il.ConstLocalVar('length2')) if isinstance(arg, Var): return il.Begin(( il.Assign(x, il.Deref(arg)), il.AssignFromList(text, pos, il.parse_state), il.Assign(length, il.Len(text)), il.Assign(length, il.Len(x)), il.Assign(i, il.Integer(0)), il.Assign(p, pos), il.while_(il.and_(il.Lt(i, length2), il.Lt(p, length), il.Eq(il.GetItem(text, p), il.GetItem(x, i))), il.AddAssign(p, il.Integer(1))), il.If(il.Lt(i, length2), il.failcont(il.NONE), il.begin(il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos))), il.SetParseState(il.Tuple(text, p)), cont(arg))))) elif isinstance(arg, String): arg = arg.interlang() return il.Begin(( il.AssignFromList(text, pos, il.parse_state), il.Assign(length, il.Len(text)), il.Assign(length2, il.Len(arg)), il.Assign(i, il.Integer(0)), il.Assign(p, pos), il.while_(il.and_(il.Lt(i, length2), il.Lt(p, length), il.Eq(il.GetItem(text, p), il.GetItem(arg, i))), il.AddAssign(p, il.Integer(1)), il.AddAssign(i, il.Integer(1)), ), il.If(il.Lt(i, length2), il.failcont(il.NONE), il.begin(il.append_failcont(compiler, il.SetParseState(il.Tuple(text, pos))), il.SetParseState(il.Tuple(text, p)), cont(arg))))) else: raise CompileTypeError