Adapt old compiler to Python 3.5 AST.

artiq/transforms/inline.py

@@ -356,8 +356,7 @@ class Function:
             exception_id = self.mappers.exception.encode(exception_class)
         return ast.copy_location(
             ast.Call(func=ast.Name("EncodedException", ast.Load()),
-                     args=[value_to_ast(exception_id)],
-                     keywords=[], starargs=None, kwargs=None),
+                     args=[value_to_ast(exception_id)], keywords=[]),
             e)
 
     def code_visit_Raise(self, node):
@@ -514,8 +513,7 @@ def get_attr_writeback(attribute_namespace, rpc_mapper, loc_node):
             arg3 = ast.copy_location(
                 ast.Name(attr_info.mangled_name, ast.Load()), loc_node)
             call = ast.copy_location(
-                ast.Call(func=func, args=[arg1, arg2, arg3],
-                         keywords=[], starargs=None, kwargs=None),
+                ast.Call(func=func, args=[arg1, arg2, arg3], keywords=[]),
                 loc_node)
             expr = ast.copy_location(ast.Expr(call), loc_node)
             attr_writeback.append(expr)

artiq/transforms/interleave.py

@@ -71,8 +71,7 @@ def _interleave_timelines(timelines):
             delay_stmt = ast.copy_location(
                 ast.Expr(ast.Call(
                     func=ast.Name("delay_mu", ast.Load()),
-                    args=[value_to_ast(dt)],
-                    keywords=[], starargs=[], kwargs=[])),
+                    args=[value_to_ast(dt)], keywords=[])),
                 ref_stmt)
             r.append(delay_stmt)
         else:

artiq/transforms/lower_time.py

@@ -46,14 +46,12 @@ def lower_time(func_def):
     _TimeLowerer().visit(func_def)
     call_init = ast.Call(
         func=ast.Name("syscall", ast.Load()),
-        args=[ast.Str("now_init")],
-        keywords=[], starargs=None, kwargs=None)
+        args=[ast.Str("now_init")], keywords=[])
     stmt_init = ast.Assign(targets=[ast.Name("now", ast.Store())],
         value=call_init)
     call_save = ast.Call(
         func=ast.Name("syscall", ast.Load()),
-        args=[ast.Str("now_save"), ast.Name("now", ast.Load())],
-        keywords=[], starargs=None, kwargs=None)
+        args=[ast.Str("now_save"), ast.Name("now", ast.Load())], keywords=[])
     stmt_save = ast.Expr(call_save)
     func_def.body = [
         stmt_init,

artiq/transforms/quantize_time.py

@@ -23,8 +23,7 @@ def _seconds_to_mu(ref_period, node):
         node)
     return ast.copy_location(
         ast.Call(func=ast.Name("round64", ast.Load()),
-                 args=[divided],
-                 keywords=[], starargs=[], kwargs=[]),
+                 args=[divided], keywords=[]),
         divided)
 
 
@@ -77,12 +76,10 @@ class _TimeQuantizer(ast.NodeTransformer):
                              right=ast.Num(1000))
             time_int = ast.Call(
                 func=ast.Name("round", ast.Load()),
-                args=[time],
-                keywords=[], starargs=None, kwargs=None)
+                args=[time], keywords=[])
             syscall_set = ast.Call(
                 func=ast.Name("syscall", ast.Load()),
-                args=[ast.Str("watchdog_set"), time_int],
-                keywords=[], starargs=None, kwargs=None)
+                args=[ast.Str("watchdog_set"), time_int], keywords=[])
             stmt_set = ast.copy_location(
                 ast.Assign(targets=[ast.Name(idname, ast.Store())],
                            value=syscall_set),
@@ -91,8 +88,7 @@ class _TimeQuantizer(ast.NodeTransformer):
             syscall_clear = ast.Call(
                 func=ast.Name("syscall", ast.Load()),
                 args=[ast.Str("watchdog_clear"),
-                              ast.Name(idname, ast.Load())],
-                keywords=[], starargs=None, kwargs=None)
+                              ast.Name(idname, ast.Load())], keywords=[])
             stmt_clear = ast.copy_location(ast.Expr(syscall_clear), node)
 
             node.items[0] = ast.withitem(

artiq/transforms/tools.py

@@ -40,8 +40,7 @@ def value_to_ast(value):
     if isinstance(value, core_language.int64):  # must be before int
         return ast.Call(
             func=ast.Name("int64", ast.Load()),
-            args=[ast.Num(int(value))],
-            keywords=[], starargs=None, kwargs=None)
+            args=[ast.Num(int(value))], keywords=[])
     elif isinstance(value, bool) or value is None:
         # must also be before int
         # isinstance(True/False, int) == True
@@ -51,8 +50,7 @@ def value_to_ast(value):
     elif isinstance(value, Fraction):
         return ast.Call(
             func=ast.Name("Fraction", ast.Load()),
-            args=[ast.Num(value.numerator), ast.Num(value.denominator)],
-            keywords=[], starargs=None, kwargs=None)
+            args=[ast.Num(value.numerator), ast.Num(value.denominator)], keywords=[])
     elif isinstance(value, str):
         return ast.Str(value)
     elif isinstance(value, list):

artiq/transforms/unparse.py

@@ -211,20 +211,6 @@ class _Unparser:
             else:
                 comma = True
             self.dispatch(e)
-        if t.starargs:
-            if comma:
-                self.write(", ")
-            else:
-                comma = True
-            self.write("*")
-            self.dispatch(t.starargs)
-        if t.kwargs:
-            if comma:
-                self.write(", ")
-            else:
-                comma = True
-            self.write("**")
-            self.dispatch(t.kwargs)
         self.write(")")
 
         self.enter()
@@ -466,20 +452,6 @@ class _Unparser:
             else:
                 comma = True
             self.dispatch(e)
-        if t.starargs:
-            if comma:
-                self.write(", ")
-            else:
-                comma = True
-            self.write("*")
-            self.dispatch(t.starargs)
-        if t.kwargs:
-            if comma:
-                self.write(", ")
-            else:
-                comma = True
-            self.write("**")
-            self.dispatch(t.kwargs)
         self.write(")")
 
     def _Subscript(self, t):
@@ -571,8 +543,11 @@ class _Unparser:
                 self.dispatch(t.kwarg.annotation)
 
     def _keyword(self, t):
-        self.write(t.arg)
-        self.write("=")
+        if t.arg is None:
+            self.write("**")
+        else:
+            self.write(t.arg)
+            self.write("=")
         self.dispatch(t.value)
 
     def _Lambda(self, t):