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Jiwon Seo's PEP 3102 implementation. 

See SF#1549670.
The compiler package has not yet been updated.
This commit is contained in:
Guido van Rossum 2006-10-27 23:31:49 +00:00
parent fc2a0a8e3c
commit 4f72a78684
31 changed files with 739 additions and 227 deletions
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2
Grammar/Grammar
View File

@ -24,7 +24,7 @@ decorators: decorator+
funcdef: [decorators] 'def' NAME parameters ':' suite
parameters: '(' [varargslist] ')'
varargslist: ((fpdef ['=' test] ',')*
('*' NAME [',' '**' NAME] | '**' NAME) |
('*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME) |
fpdef ['=' test] (',' fpdef ['=' test])* [','])
fpdef: NAME | '(' fplist ')'
fplist: fpdef (',' fpdef)* [',']

7
Include/Python-ast.h
View File

@ -328,8 +328,10 @@ struct _excepthandler {
struct _arguments {
asdl_seq *args;
identifier vararg;
asdl_seq *kwonlyargs;
identifier kwarg;
asdl_seq *defaults;
asdl_seq *kw_defaults;
};
struct _keyword {
@ -427,8 +429,9 @@ comprehension_ty comprehension(expr_ty target, expr_ty iter, asdl_seq * ifs,
PyArena *arena);
excepthandler_ty excepthandler(expr_ty type, expr_ty name, asdl_seq * body, int
lineno, int col_offset, PyArena *arena);
arguments_ty arguments(asdl_seq * args, identifier vararg, identifier kwarg,
asdl_seq * defaults, PyArena *arena);
arguments_ty arguments(asdl_seq * args, identifier vararg, asdl_seq *
kwonlyargs, identifier kwarg, asdl_seq * defaults,
asdl_seq * kw_defaults, PyArena *arena);
keyword_ty keyword(identifier arg, expr_ty value, PyArena *arena);
alias_ty alias(identifier name, identifier asname, PyArena *arena);

6
Include/code.h
View File

@ -10,6 +10,7 @@ extern "C" {
typedef struct {
PyObject_HEAD
int co_argcount; /* #arguments, except *args */
int co_kwonlyargcount; /* #keyword only arguments */
int co_nlocals; /* #local variables */
int co_stacksize; /* #entries needed for evaluation stack */
int co_flags; /* CO_..., see below */
@ -63,8 +64,9 @@ PyAPI_DATA(PyTypeObject) PyCode_Type;
/* Public interface */
PyAPI_FUNC(PyCodeObject *) PyCode_New(
int, int, int, int, PyObject *, PyObject *, PyObject *, PyObject *,
PyObject *, PyObject *, PyObject *, PyObject *, int, PyObject *);
int, int, int, int, int, PyObject *, PyObject *,
PyObject *, PyObject *, PyObject *, PyObject *,
PyObject *, PyObject *, int, PyObject *);
/* same as struct above */
PyAPI_FUNC(int) PyCode_Addr2Line(PyCodeObject *, int);

2
Include/eval.h
View File

@ -15,7 +15,7 @@ PyAPI_FUNC(PyObject *) PyEval_EvalCodeEx(PyCodeObject *co,
PyObject **args, int argc,
PyObject **kwds, int kwdc,
PyObject **defs, int defc,
PyObject *closure);
PyObject *kwdefs, PyObject *closure);
PyAPI_FUNC(PyObject *) _PyEval_CallTracing(PyObject *func, PyObject *args);

5
Include/funcobject.h
View File

@ -23,6 +23,7 @@ typedef struct {
PyObject *func_code; /* A code object */
PyObject *func_globals; /* A dictionary (other mappings won't do) */
PyObject *func_defaults; /* NULL or a tuple */
PyObject *func_kwdefaults; /* NULL or a dict */
PyObject *func_closure; /* NULL or a tuple of cell objects */
PyObject *func_doc; /* The __doc__ attribute, can be anything */
PyObject *func_name; /* The __name__ attribute, a string object */
@ -47,6 +48,8 @@ PyAPI_FUNC(PyObject *) PyFunction_GetGlobals(PyObject *);
PyAPI_FUNC(PyObject *) PyFunction_GetModule(PyObject *);
PyAPI_FUNC(PyObject *) PyFunction_GetDefaults(PyObject *);
PyAPI_FUNC(int) PyFunction_SetDefaults(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) PyFunction_GetKwDefaults(PyObject *);
PyAPI_FUNC(int) PyFunction_SetKwDefaults(PyObject *, PyObject *);
PyAPI_FUNC(PyObject *) PyFunction_GetClosure(PyObject *);
PyAPI_FUNC(int) PyFunction_SetClosure(PyObject *, PyObject *);
@ -60,6 +63,8 @@ PyAPI_FUNC(int) PyFunction_SetClosure(PyObject *, PyObject *);
(((PyFunctionObject *)func) -> func_module)
#define PyFunction_GET_DEFAULTS(func) \
(((PyFunctionObject *)func) -> func_defaults)
#define PyFunction_GET_KW_DEFAULTS(func) \
(((PyFunctionObject *)func) -> func_kwdefaults)
#define PyFunction_GET_CLOSURE(func) \
(((PyFunctionObject *)func) -> func_closure)

13
Lib/compiler/ast.py
View File

@ -487,11 +487,12 @@ class From(Node):
return "From(%s, %s, %s)" % (repr(self.modname), repr(self.names), repr(self.level))
class Function(Node):
def __init__(self, decorators, name, argnames, defaults, flags, doc, code, lineno=None):
def __init__(self, decorators, name, argnames, defaults, kwonlyargs, flags, doc, code, lineno=None):
self.decorators = decorators
self.name = name
self.argnames = argnames
self.defaults = defaults
self.kwonlyargs = kwonlyargs
self.flags = flags
self.doc = doc
self.code = code
@ -509,6 +510,7 @@ class Function(Node):
children.append(self.name)
children.append(self.argnames)
children.extend(flatten(self.defaults))
children.append(self.kwonlyargs)
children.append(self.flags)
children.append(self.doc)
children.append(self.code)
@ -523,7 +525,7 @@ class Function(Node):
return tuple(nodelist)
def __repr__(self):
return "Function(%s, %s, %s, %s, %s, %s, %s)" % (repr(self.decorators), repr(self.name), repr(self.argnames), repr(self.defaults), repr(self.flags), repr(self.doc), repr(self.code))
return "Function(%s, %s, %s, %s, %s, %s, %s, %s)" % (repr(self.decorators), repr(self.name), repr(self.argnames), repr(self.defaults), repr(self.kwonlyargs), repr(self.flags), repr(self.doc), repr(self.code))
class GenExpr(Node):
def __init__(self, code, lineno=None):
@ -531,6 +533,7 @@ class GenExpr(Node):
self.lineno = lineno
self.argnames = ['.0']
self.varargs = self.kwargs = None
self.kwonlyargs = ()
def getChildren(self):
@ -713,9 +716,10 @@ class Keyword(Node):
return "Keyword(%s, %s)" % (repr(self.name), repr(self.expr))
class Lambda(Node):
def __init__(self, argnames, defaults, flags, code, lineno=None):
def __init__(self, argnames, defaults, kwonlyargs, flags, code, lineno=None):
self.argnames = argnames
self.defaults = defaults
self.kwonlyargs = kwonlyargs
self.flags = flags
self.code = code
self.lineno = lineno
@ -730,6 +734,7 @@ class Lambda(Node):
children = []
children.append(self.argnames)
children.extend(flatten(self.defaults))
children.append(self.kwonlyargs)
children.append(self.flags)
children.append(self.code)
return tuple(children)
@ -741,7 +746,7 @@ class Lambda(Node):
return tuple(nodelist)
def __repr__(self):
return "Lambda(%s, %s, %s, %s)" % (repr(self.argnames), repr(self.defaults), repr(self.flags), repr(self.code))
return "Lambda(%s, %s, %s, %s, %s)" % (repr(self.argnames), repr(self.defaults), repr(self.kwonlyargs), repr(self.flags), repr(self.code))
class LeftShift(Node):
def __init__(self, (left, right), lineno=None):

11
Lib/compiler/pyassem.py
View File

@ -313,13 +313,15 @@ DONE = "DONE"
class PyFlowGraph(FlowGraph):
super_init = FlowGraph.__init__
def __init__(self, name, filename, args=(), optimized=0, klass=None):
def __init__(self, name, filename,
args=(), kwonlyargs={}, optimized=0, klass=None):
self.super_init()
self.name = name
self.filename = filename
self.docstring = None
self.args = args # XXX
self.argcount = getArgCount(args)
self.kwonlyargs = kwonlyargs
self.klass = klass
if optimized:
self.flags = CO_OPTIMIZED | CO_NEWLOCALS
@ -595,7 +597,9 @@ class PyFlowGraph(FlowGraph):
argcount = self.argcount
if self.flags & CO_VARKEYWORDS:
argcount = argcount - 1
return new.code(argcount, nlocals, self.stacksize, self.flags,
kwonlyargcount = len(self.kwonlyargs)
return new.code(argcount, kwonlyargcount,
nlocals, self.stacksize, self.flags,
self.lnotab.getCode(), self.getConsts(),
tuple(self.names), tuple(self.varnames),
self.filename, self.name, self.lnotab.firstline,
@ -804,7 +808,8 @@ class StackDepthTracker:
def CALL_FUNCTION_VAR_KW(self, argc):
return self.CALL_FUNCTION(argc)-2
def MAKE_FUNCTION(self, argc):
return -argc
hi, lo = divmod(argc, 256)
return -(lo + hi * 2)
def MAKE_CLOSURE(self, argc):
# XXX need to account for free variables too!
return -argc

15
Lib/compiler/pycodegen.py
View File

@ -378,6 +378,12 @@ class CodeGenerator:
walk(node.code, gen)
gen.finish()
self.set_lineno(node)
for keyword in node.kwonlyargs:
default = keyword.expr
if isinstance(default, ast.EmptyNode):
continue
self.emit('LOAD_CONST', keyword.name)
self.visit(default)
for default in node.defaults:
self.visit(default)
self._makeClosure(gen, len(node.defaults))
@ -1320,7 +1326,9 @@ class AbstractFunctionCode:
name = func.name
args, hasTupleArg = generateArgList(func.argnames)
kwonlyargs = generateKwonlyArgList(func.kwonlyargs)
self.graph = pyassem.PyFlowGraph(name, func.filename, args,
kwonlyargs=kwonlyargs,
optimized=1)
self.isLambda = isLambda
self.super_init()
@ -1456,6 +1464,13 @@ def generateArgList(arglist):
raise ValueError, "unexpect argument type:", elt
return args + extra, count
def generateKwonlyArgList(keywordOnlyArgs):
kwonlyargs = {}
for elt in keywordOnlyArgs:
assert isinstance(elt, ast.Keyword)
kwonlyargs[elt.name] = elt.expr
return kwonlyargs
def findOp(node):
"""Find the op (DELETE, LOAD, STORE) in an AssTuple tree"""
v = OpFinder()

59
Lib/compiler/transformer.py
View File

@ -250,9 +250,9 @@ class Transformer:
args = nodelist[-3][2]
if args[0] == symbol.varargslist:
names, defaults, flags = self.com_arglist(args[1:])
names, defaults, kwonlyargs, flags = self.com_arglist(args[1:])
else:
names = defaults = ()
names = defaults = kwonlyargs = ()
flags = 0
doc = self.get_docstring(nodelist[-1])
@ -263,21 +263,23 @@ class Transformer:
assert isinstance(code, Stmt)
assert isinstance(code.nodes[0], Discard)
del code.nodes[0]
return Function(decorators, name, names, defaults, flags, doc, code,
lineno=lineno)
return Function(decorators, name, names, defaults,
kwonlyargs, flags, doc, code, lineno=lineno)
def lambdef(self, nodelist):
# lambdef: 'lambda' [varargslist] ':' test
if nodelist[2][0] == symbol.varargslist:
names, defaults, flags = self.com_arglist(nodelist[2][1:])
names, defaults, kwonlyargs, flags = \
self.com_arglist(nodelist[2][1:])
else:
names = defaults = ()
names = defaults = kwonlyargs = ()
flags = 0
# code for lambda
code = self.com_node(nodelist[-1])
return Lambda(names, defaults, flags, code, lineno=nodelist[1][2])
return Lambda(names, defaults, kwonlyargs,
flags, code, lineno=nodelist[1][2])
old_lambdef = lambdef
def classdef(self, nodelist):
@ -783,13 +785,37 @@ class Transformer:
# ('const', xxxx)) Nodes)
return Discard(Const(None))
def keywordonlyargs(self, nodelist):
# (',' NAME ['=' test])*
# ^^^
# ------+
kwonlyargs = []
i = 0
while i < len(nodelist):
default = EmptyNode()
node = nodelist[i]
#assert node[0] == token.COMMA
#node = nodelist[i+1]
if i+1 < len(nodelist) and nodelist[i+1][0] == token.EQUAL:
assert i+2 < len(nodelist)
default = self.com_node(nodelist[i+2])
i += 2
if node[0] == token.DOUBLESTAR:
return kwonlyargs, i
elif node[0] == token.NAME:
kwonlyargs.append(Keyword(node[1], default, lineno=node[2]))
i += 2
return kwonlyargs, i
def com_arglist(self, nodelist):
# varargslist:
# (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME] | '**' NAME)
# (fpdef ['=' test] ',')*
# ('*' [NAME] (',' NAME '=' test)* [',' '**' NAME] | '**' NAME)
# | fpdef ['=' test] (',' fpdef ['=' test])* [',']
# fpdef: NAME | '(' fplist ')'
# fplist: fpdef (',' fpdef)* [',']
names = []
kwonlyargs = []
defaults = []
flags = 0
@ -799,10 +825,22 @@ class Transformer:
if node[0] == token.STAR or node[0] == token.DOUBLESTAR:
if node[0] == token.STAR:
node = nodelist[i+1]
if node[0] == token.NAME:
if node[0] == token.NAME: # vararg
names.append(node[1])
flags = flags | CO_VARARGS
i = i + 3
else: # no vararg
assert node[0] == token.COMMA
i += 1
#elif node[0] == token.COMMA:
# i += 1
# kwonlyargs, skip = self.keywordonlyargs(nodelist[i:])
# i += skip
if nodelist[i][0] == token.NAME:
kwonlyargs, skip = self.keywordonlyargs(nodelist[i:])
i += skip
print "kwonlyargs:", kwonlyargs
if i < len(nodelist):
# should be DOUBLESTAR
@ -831,7 +869,8 @@ class Transformer:
# skip the comma
i = i + 1
return names, defaults, flags
print "names:", names, "defaults:", defaults, "kwonlyargs:", kwonlyargs, "flags:", flags
return names, defaults, kwonlyargs, flags
def com_fpdef(self, node):
# fpdef: NAME | '(' fplist ')'

76
Lib/test/output/test_extcall
View File

@ -9,9 +9,9 @@ test_extcall
(1, 2, 3) {'a': 4, 'b': 5}
(1, 2, 3, 4, 5) {'a': 6, 'b': 7}
(1, 2, 3, 6, 7) {'a': 8, 'b': 9, 'x': 4, 'y': 5}
TypeError: g() takes at least 1 argument (0 given)
TypeError: g() takes at least 1 argument (0 given)
TypeError: g() takes at least 1 argument (0 given)
TypeError: g() takes at least 1 positional argument (0 given)
TypeError: g() takes at least 1 positional argument (0 given)
TypeError: g() takes at least 1 positional argument (0 given)
1 () {}
1 (2,) {}
1 (2, 3) {}
@ -35,24 +35,24 @@ dir() got multiple values for keyword argument 'b'
3 512 True
3
3
za () {} -> za() takes exactly 1 argument (0 given)
za () {} -> za() takes exactly 1 positional argument (0 given)
za () {'a': 'aa'} -> ok za aa B D E V a
za () {'d': 'dd'} -> za() got an unexpected keyword argument 'd'
za () {'a': 'aa', 'd': 'dd'} -> za() got an unexpected keyword argument 'd'
za () {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> za() got an unexpected keyword argument 'b'
za (1, 2) {} -> za() takes exactly 1 argument (2 given)
za (1, 2) {'a': 'aa'} -> za() takes exactly 1 non-keyword argument (2 given)
za (1, 2) {'d': 'dd'} -> za() takes exactly 1 non-keyword argument (2 given)
za (1, 2) {'a': 'aa', 'd': 'dd'} -> za() takes exactly 1 non-keyword argument (2 given)
za (1, 2) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> za() takes exactly 1 non-keyword argument (2 given)
za (1, 2, 3, 4, 5) {} -> za() takes exactly 1 argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa'} -> za() takes exactly 1 non-keyword argument (5 given)
za (1, 2, 3, 4, 5) {'d': 'dd'} -> za() takes exactly 1 non-keyword argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> za() takes exactly 1 non-keyword argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> za() takes exactly 1 non-keyword argument (5 given)
zade () {} -> zade() takes at least 1 argument (0 given)
za (1, 2) {} -> za() takes exactly 1 positional argument (2 given)
za (1, 2) {'a': 'aa'} -> za() takes exactly 1 non-keyword positional argument (2 given)
za (1, 2) {'d': 'dd'} -> za() takes exactly 1 non-keyword positional argument (2 given)
za (1, 2) {'a': 'aa', 'd': 'dd'} -> za() takes exactly 1 non-keyword positional argument (2 given)
za (1, 2) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> za() takes exactly 1 non-keyword positional argument (2 given)
za (1, 2, 3, 4, 5) {} -> za() takes exactly 1 positional argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa'} -> za() takes exactly 1 non-keyword positional argument (5 given)
za (1, 2, 3, 4, 5) {'d': 'dd'} -> za() takes exactly 1 non-keyword positional argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> za() takes exactly 1 non-keyword positional argument (5 given)
za (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> za() takes exactly 1 non-keyword positional argument (5 given)
zade () {} -> zade() takes at least 1 positional argument (0 given)
zade () {'a': 'aa'} -> ok zade aa B d e V a
zade () {'d': 'dd'} -> zade() takes at least 1 non-keyword argument (0 given)
zade () {'d': 'dd'} -> zade() takes at least 1 non-keyword positional argument (0 given)
zade () {'a': 'aa', 'd': 'dd'} -> ok zade aa B dd e V d
zade () {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zade() got an unexpected keyword argument 'b'
zade (1, 2) {} -> ok zade 1 B 2 e V e
@ -60,30 +60,30 @@ zade (1, 2) {'a': 'aa'} -> zade() got multiple values for keyword argument 'a'
zade (1, 2) {'d': 'dd'} -> zade() got multiple values for keyword argument 'd'
zade (1, 2) {'a': 'aa', 'd': 'dd'} -> zade() got multiple values for keyword argument 'a'
zade (1, 2) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zade() got multiple values for keyword argument 'a'
zade (1, 2, 3, 4, 5) {} -> zade() takes at most 3 arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa'} -> zade() takes at most 3 non-keyword arguments (5 given)
zade (1, 2, 3, 4, 5) {'d': 'dd'} -> zade() takes at most 3 non-keyword arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> zade() takes at most 3 non-keyword arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zade() takes at most 3 non-keyword arguments (5 given)
zabk () {} -> zabk() takes exactly 2 arguments (0 given)
zabk () {'a': 'aa'} -> zabk() takes exactly 2 non-keyword arguments (1 given)
zabk () {'d': 'dd'} -> zabk() takes exactly 2 non-keyword arguments (0 given)
zabk () {'a': 'aa', 'd': 'dd'} -> zabk() takes exactly 2 non-keyword arguments (1 given)
zade (1, 2, 3, 4, 5) {} -> zade() takes at most 3 positional arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa'} -> zade() takes at most 3 non-keyword positional arguments (5 given)
zade (1, 2, 3, 4, 5) {'d': 'dd'} -> zade() takes at most 3 non-keyword positional arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> zade() takes at most 3 non-keyword positional arguments (5 given)
zade (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zade() takes at most 3 non-keyword positional arguments (5 given)
zabk () {} -> zabk() takes exactly 2 positional arguments (0 given)
zabk () {'a': 'aa'} -> zabk() takes exactly 2 non-keyword positional arguments (1 given)
zabk () {'d': 'dd'} -> zabk() takes exactly 2 non-keyword positional arguments (0 given)
zabk () {'a': 'aa', 'd': 'dd'} -> zabk() takes exactly 2 non-keyword positional arguments (1 given)
zabk () {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> ok zabk aa bb D E V {'d': 'dd', 'e': 'ee'}
zabk (1, 2) {} -> ok zabk 1 2 D E V {}
zabk (1, 2) {'a': 'aa'} -> zabk() got multiple values for keyword argument 'a'
zabk (1, 2) {'d': 'dd'} -> ok zabk 1 2 D E V {'d': 'dd'}
zabk (1, 2) {'a': 'aa', 'd': 'dd'} -> zabk() got multiple values for keyword argument 'a'
zabk (1, 2) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zabk() got multiple values for keyword argument 'a'
zabk (1, 2, 3, 4, 5) {} -> zabk() takes exactly 2 arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa'} -> zabk() takes exactly 2 non-keyword arguments (5 given)
zabk (1, 2, 3, 4, 5) {'d': 'dd'} -> zabk() takes exactly 2 non-keyword arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> zabk() takes exactly 2 non-keyword arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zabk() takes exactly 2 non-keyword arguments (5 given)
zabdv () {} -> zabdv() takes at least 2 arguments (0 given)
zabdv () {'a': 'aa'} -> zabdv() takes at least 2 non-keyword arguments (1 given)
zabdv () {'d': 'dd'} -> zabdv() takes at least 2 non-keyword arguments (0 given)
zabdv () {'a': 'aa', 'd': 'dd'} -> zabdv() takes at least 2 non-keyword arguments (1 given)
zabk (1, 2, 3, 4, 5) {} -> zabk() takes exactly 2 positional arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa'} -> zabk() takes exactly 2 non-keyword positional arguments (5 given)
zabk (1, 2, 3, 4, 5) {'d': 'dd'} -> zabk() takes exactly 2 non-keyword positional arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> zabk() takes exactly 2 non-keyword positional arguments (5 given)
zabk (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zabk() takes exactly 2 non-keyword positional arguments (5 given)
zabdv () {} -> zabdv() takes at least 2 positional arguments (0 given)
zabdv () {'a': 'aa'} -> zabdv() takes at least 2 non-keyword positional arguments (1 given)
zabdv () {'d': 'dd'} -> zabdv() takes at least 2 non-keyword positional arguments (0 given)
zabdv () {'a': 'aa', 'd': 'dd'} -> zabdv() takes at least 2 non-keyword positional arguments (1 given)
zabdv () {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zabdv() got an unexpected keyword argument 'e'
zabdv (1, 2) {} -> ok zabdv 1 2 d E () e
zabdv (1, 2) {'a': 'aa'} -> zabdv() got multiple values for keyword argument 'a'
@ -95,10 +95,10 @@ zabdv (1, 2, 3, 4, 5) {'a': 'aa'} -> zabdv() got multiple values for keyword arg
zabdv (1, 2, 3, 4, 5) {'d': 'dd'} -> zabdv() got multiple values for keyword argument 'd'
zabdv (1, 2, 3, 4, 5) {'a': 'aa', 'd': 'dd'} -> zabdv() got multiple values for keyword argument 'a'
zabdv (1, 2, 3, 4, 5) {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> zabdv() got multiple values for keyword argument 'a'
zabdevk () {} -> zabdevk() takes at least 2 arguments (0 given)
zabdevk () {'a': 'aa'} -> zabdevk() takes at least 2 non-keyword arguments (1 given)
zabdevk () {'d': 'dd'} -> zabdevk() takes at least 2 non-keyword arguments (0 given)
zabdevk () {'a': 'aa', 'd': 'dd'} -> zabdevk() takes at least 2 non-keyword arguments (1 given)
zabdevk () {} -> zabdevk() takes at least 2 positional arguments (0 given)
zabdevk () {'a': 'aa'} -> zabdevk() takes at least 2 non-keyword positional arguments (1 given)
zabdevk () {'d': 'dd'} -> zabdevk() takes at least 2 non-keyword positional arguments (0 given)
zabdevk () {'a': 'aa', 'd': 'dd'} -> zabdevk() takes at least 2 non-keyword positional arguments (1 given)
zabdevk () {'a': 'aa', 'b': 'bb', 'd': 'dd', 'e': 'ee'} -> ok zabdevk aa bb dd ee () {}
zabdevk (1, 2) {} -> ok zabdevk 1 2 d e () {}
zabdevk (1, 2) {'a': 'aa'} -> zabdevk() got multiple values for keyword argument 'a'

6
Lib/test/test_ast.py
View File

@ -151,9 +151,9 @@ def run_tests():
#### EVERYTHING BELOW IS GENERATED #####
exec_results = [
('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, None, []), [('Pass', (1, 9))], [])]),
('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, [], None, [], []), [('Pass', (1, 9))], [])]),
('Module', [('ClassDef', (1, 0), 'C', [], [('Pass', (1, 8))])]),
('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, None, []), [('Return', (1, 8), ('Num', (1, 15), 1))], [])]),
('Module', [('FunctionDef', (1, 0), 'f', ('arguments', [], None, [], None, [], []), [('Return', (1, 8), ('Num', (1, 15), 1))], [])]),
('Module', [('Delete', (1, 0), [('Name', (1, 4), 'v', ('Del',))])]),
('Module', [('Assign', (1, 0), [('Name', (1, 0), 'v', ('Store',))], ('Num', (1, 4), 1))]),
('Module', [('AugAssign', (1, 0), ('Name', (1, 0), 'v', ('Store',)), ('Add',), ('Num', (1, 5), 1))]),
@ -180,7 +180,7 @@ eval_results = [
('Expression', ('BoolOp', (1, 0), ('And',), [('Name', (1, 0), 'a', ('Load',)), ('Name', (1, 6), 'b', ('Load',))])),
('Expression', ('BinOp', (1, 0), ('Name', (1, 0), 'a', ('Load',)), ('Add',), ('Name', (1, 4), 'b', ('Load',)))),
('Expression', ('UnaryOp', (1, 0), ('Not',), ('Name', (1, 4), 'v', ('Load',)))),
('Expression', ('Lambda', (1, 0), ('arguments', [], None, None, []), ('Name', (1, 7), 'None', ('Load',)))),
('Expression', ('Lambda', (1, 0), ('arguments', [], None, [], None, [], []), ('Name', (1, 7), 'None', ('Load',)))),
('Expression', ('Dict', (1, 0), [('Num', (1, 2), 1)], [('Num', (1, 4), 2)])),
('Expression', ('ListComp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])),
('Expression', ('GeneratorExp', (1, 1), ('Name', (1, 1), 'a', ('Load',)), [('comprehension', ('Name', (1, 7), 'b', ('Store',)), ('Name', (1, 12), 'c', ('Load',)), [('Name', (1, 17), 'd', ('Load',))])])),

26
Lib/test/test_code.py
View File

@ -9,6 +9,7 @@
>>> dump(f.func_code)
name: f
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('x', 'g')
cellvars: ('x',)
@ -20,6 +21,7 @@ consts: ('None', '<code object g>')
>>> dump(f(4).func_code)
name: g
argcount: 1
kwonlyargcount: 0
names: ()
varnames: ('y',)
cellvars: ()
@ -34,9 +36,11 @@ consts: ('None',)
... c = a * b
... return c
...
>>> dump(h.func_code)
name: h
argcount: 2
kwonlyargcount: 0
names: ()
varnames: ('x', 'y', 'a', 'b', 'c')
cellvars: ()
@ -53,6 +57,7 @@ consts: ('None',)
>>> dump(attrs.func_code)
name: attrs
argcount: 1
kwonlyargcount: 0
names: ('attr1', 'attr2', 'attr3')
varnames: ('obj',)
cellvars: ()
@ -70,6 +75,7 @@ consts: ('None',)
>>> dump(optimize_away.func_code)
name: optimize_away
argcount: 0
kwonlyargcount: 0
names: ()
varnames: ()
cellvars: ()
@ -78,6 +84,22 @@ nlocals: 0
flags: 67
consts: ("'doc string'", 'None')
>>> def keywordonly_args(a,b,*,k1):
... return a,b,k1
...
>>> dump(keywordonly_args.func_code)
name: keywordonly_args
argcount: 2
kwonlyargcount: 1
names: ()
varnames: ('a', 'b', 'k1')
cellvars: ()
freevars: ()
nlocals: 3
flags: 67
consts: ('None',)
"""
def consts(t):
@ -91,8 +113,8 @@ def consts(t):
def dump(co):
"""Print out a text representation of a code object."""
for attr in ["name", "argcount", "names", "varnames", "cellvars",
"freevars", "nlocals", "flags"]:
for attr in ["name", "argcount", "kwonlyargcount", "names", "varnames",
"cellvars", "freevars", "nlocals", "flags"]:
print "%s: %s" % (attr, getattr(co, "co_" + attr))
print "consts:", tuple(consts(co.co_consts))

63
Lib/test/test_compiler.py
View File

@ -19,36 +19,51 @@ class CompilerTest(unittest.TestCase):
libdir = os.path.dirname(unittest.__file__)
testdir = os.path.dirname(test.test_support.__file__)
for dir in [libdir, testdir]:
for basename in os.listdir(dir):
# Print still working message since this test can be really slow
if next_time <= time.time():
next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
print >>sys.__stdout__, \
' testCompileLibrary still working, be patient...'
sys.__stdout__.flush()
## for dir in [libdir, testdir]:
## for basename in os.listdir(dir):
## # Print still working message since this test can be really slow
## if next_time <= time.time():
## next_time = time.time() + _PRINT_WORKING_MSG_INTERVAL
## print >>sys.__stdout__, \
## ' testCompileLibrary still working, be patient...'
## sys.__stdout__.flush()
##
## if not basename.endswith(".py"):
## continue
## if not TEST_ALL and random() < 0.98:
## continue
## path = os.path.join(dir, basename)
## if test.test_support.verbose:
## print "compiling", path
## f = open(path, "U")
## buf = f.read()
## f.close()
## if "badsyntax" in basename or "bad_coding" in basename:
## self.assertRaises(SyntaxError, compiler.compile,
## buf, basename, "exec")
## else:
## try:
## compiler.compile(buf, basename, "exec")
## except Exception, e:
## args = list(e.args)
## args[0] += "[in file %s]" % basename
## e.args = tuple(args)
## raise
if not basename.endswith(".py"):
continue
if not TEST_ALL and random() < 0.98:
continue
path = os.path.join(dir, basename)
path = "/home/jiwon/p3yk/Lib/test/test_keywordonlyarg.py"
if test.test_support.verbose:
print "compiling", path
f = open(path, "U")
buf = f.read()
f.close()
if "badsyntax" in basename or "bad_coding" in basename:
self.assertRaises(SyntaxError, compiler.compile,
buf, basename, "exec")
else:
try:
compiler.compile(buf, basename, "exec")
except Exception, e:
args = list(e.args)
args[0] += "[in file %s]" % basename
e.args = tuple(args)
raise
#try:
compiler.compile(buf, "test_keywordonlyarg.py", "exec")
#except Exception, e:
# args = list(e.args)
# args[0] += "[in file %s]" % path
# e.args = tuple(args)
# raise
def testNewClassSyntax(self):
compiler.compile("class foo():pass\n\n","<string>","exec")

7
Lib/test/test_frozen.py
View File

@ -1,4 +1,11 @@
# Test the frozen module defined in frozen.c.
# Currently test_frozen fails:
# Implementing pep3102(keyword only argument) needs changes in
# code object, which needs modification to marshal.
# However, to regenerate hard-coded marshal data in frozen.c,
# we need to run Tools/freeze/freeze.py, which currently doesn't work
# because Lib/modulefinder.py cannot handle relative module import
# This test will keep failing until Lib/modulefinder.py is fixed
from test.test_support import TestFailed
import sys, os

16
Lib/test/test_grammar.py
View File

@ -148,7 +148,8 @@ x = eval('1, 0 or 1')
print 'funcdef'
### 'def' NAME parameters ':' suite
### parameters: '(' [varargslist] ')'
### varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' ('**'|'*' '*') NAME]
### varargslist: (fpdef ['=' test] ',')*
### ('*' (NAME|',' fpdef ['=' test]) [',' ('**'|'*' '*') NAME]
### | ('**'|'*' '*') NAME)
### | fpdef ['=' test] (',' fpdef ['=' test])* [',']
### fpdef: NAME | '(' fplist ')'
@ -265,6 +266,16 @@ def d31v((x)): pass
d31v(1)
def d32v((x,)): pass
d32v((1,))
#keyword only argument tests
def pos0key1(*, key): return key
pos0key1(key=100)
def pos2key2(p1, p2, *, k1, k2=100): return p1,p2,k1,k2
pos2key2(1, 2, k1=100)
pos2key2(1, 2, k1=100, k2=200)
pos2key2(1, 2, k2=100, k1=200)
def pos2key2dict(p1, p2, *, k1=100, k2, **kwarg): return p1,p2,k1,k2,kwarg
pos2key2dict(1,2,k2=100,tokwarg1=100,tokwarg2=200)
pos2key2dict(1,2,tokwarg1=100,tokwarg2=200, k2=100)
### lambdef: 'lambda' [varargslist] ':' test
print 'lambdef'
@ -279,6 +290,9 @@ l5 = lambda x, y, z=2: x + y + z
verify(l5(1, 2) == 5)
verify(l5(1, 2, 3) == 6)
check_syntax("lambda x: x = 2")
l6 = lambda x, y, *, k=20: x+y+k
verify(l6(1,2) == 1+2+20)
verify(l6(1,2,k=10) == 1+2+10)
### stmt: simple_stmt | compound_stmt
# Tested below

19
Lib/test/test_new.py
View File

@ -103,6 +103,7 @@ if hasattr(new, 'code'):
c = f.func_code
argcount = c.co_argcount
kwonlyargcount = c.co_kwonlyargcount
nlocals = c.co_nlocals
stacksize = c.co_stacksize
flags = c.co_flags
@ -117,17 +118,20 @@ if hasattr(new, 'code'):
freevars = c.co_freevars
cellvars = c.co_cellvars
d = new.code(argcount, nlocals, stacksize, flags, codestring,
d = new.code(argcount, kwonlyargcount,
nlocals, stacksize, flags, codestring,
constants, names, varnames, filename, name,
firstlineno, lnotab, freevars, cellvars)
# test backwards-compatibility version with no freevars or cellvars
d = new.code(argcount, nlocals, stacksize, flags, codestring,
d = new.code(argcount, kwonlyargcount,
nlocals, stacksize, flags, codestring,
constants, names, varnames, filename, name,
firstlineno, lnotab)
try: # this used to trigger a SystemError
d = new.code(-argcount, nlocals, stacksize, flags, codestring,
d = new.code(-argcount, kwonlyargcount,
nlocals, stacksize, flags, codestring,
constants, names, varnames, filename, name,
firstlineno, lnotab)
except ValueError:
@ -136,7 +140,8 @@ if hasattr(new, 'code'):
raise TestFailed, "negative co_argcount didn't trigger an exception"
try: # this used to trigger a SystemError
d = new.code(argcount, -nlocals, stacksize, flags, codestring,
d = new.code(argcount, kwonlyargcount,
-nlocals, stacksize, flags, codestring,
constants, names, varnames, filename, name,
firstlineno, lnotab)
except ValueError:
@ -145,7 +150,8 @@ if hasattr(new, 'code'):
raise TestFailed, "negative co_nlocals didn't trigger an exception"
try: # this used to trigger a Py_FatalError!
d = new.code(argcount, nlocals, stacksize, flags, codestring,
d = new.code(argcount, kwonlyargcount,
nlocals, stacksize, flags, codestring,
constants, (5,), varnames, filename, name,
firstlineno, lnotab)
except TypeError:
@ -156,7 +162,8 @@ if hasattr(new, 'code'):
# new.code used to be a way to mutate a tuple...
class S(str): pass
t = (S("ab"),)
d = new.code(argcount, nlocals, stacksize, flags, codestring,
d = new.code(argcount, kwonlyargcount,
nlocals, stacksize, flags, codestring,
constants, t, varnames, filename, name,
firstlineno, lnotab)
verify(type(t[0]) is S, "eek, tuple changed under us!")

1
Modules/_ctypes/callbacks.c
View File

@ -51,6 +51,7 @@ void _AddTraceback(char *funcname, char *filename, int lineno)
if (!empty_string) goto bad;
py_code = PyCode_New(
0, /*int argcount,*/
0, /*int kwonlyargcount,*/
0, /*int nlocals,*/
0, /*int stacksize,*/
0, /*int flags,*/

40
Modules/parsermodule.c
View File

@ -1105,13 +1105,13 @@ validate_testlist_safe(node *tree)
}
/* '*' NAME [',' '**' NAME] | '**' NAME
/* '*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME
*/
static int
validate_varargslist_trailer(node *tree, int start)
{
int nch = NCH(tree);
int res = 0;
int res = 0, i;
int sym;
if (nch <= start) {
@ -1121,15 +1121,40 @@ validate_varargslist_trailer(node *tree, int start)
sym = TYPE(CHILD(tree, start));
if (sym == STAR) {
/*
* ('*' NAME [',' '**' NAME]
* '*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME
*/
if (nch-start == 2)
res = validate_name(CHILD(tree, start+1), NULL);
else if (nch-start == 5)
else if (nch-start == 5 && TYPE(CHILD(tree, start+2)) == COMMA)
res = (validate_name(CHILD(tree, start+1), NULL)
&& validate_comma(CHILD(tree, start+2))
&& validate_doublestar(CHILD(tree, start+3))
&& validate_name(CHILD(tree, start+4), NULL));
else {
/* skip over [NAME] (',' NAME ['=' test])* */
i = start + 1;
if (TYPE(CHILD(tree, i)) == NAME) { /* skip over [NAME] */
i += 1;
}
while (res && i+1 < nch) { /* validate (',' NAME ['=' test])* */
res = validate_comma(CHILD(tree, i));
if (TYPE(CHILD(tree, i+1)) == DOUBLESTAR)
break;
res = res && validate_name(CHILD(tree, i+1), NULL);
if (res && i+2 < nch && TYPE(CHILD(tree, i+2)) == EQUAL) {
res = res && (i+3 < nch)
&& validate_test(CHILD(tree, i+3));
i += 4;
}
else {
i += 2;
}
}
/* [',' '**' NAME] */
if (res && i+1 < nch && TYPE(CHILD(tree, i+1)) == DOUBLESTAR) {
res = validate_name(CHILD(tree, i+2), NULL);
}
}
}
else if (sym == DOUBLESTAR) {
/*
@ -1148,8 +1173,7 @@ validate_varargslist_trailer(node *tree, int start)
*
* varargslist:
* (fpdef ['=' test] ',')*
* ('*' NAME [',' '**' NAME]
* | '**' NAME)
* ('*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME)
* | fpdef ['=' test] (',' fpdef ['=' test])* [',']
*
*/
@ -1169,7 +1193,7 @@ validate_varargslist(node *tree)
sym = TYPE(CHILD(tree, 0));
if (sym == STAR || sym == DOUBLESTAR)
/* whole thing matches:
* '*' NAME [',' '**' NAME] | '**' NAME
* '*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME
*/
res = validate_varargslist_trailer(tree, 0);
else if (sym == fpdef) {
@ -1201,7 +1225,7 @@ validate_varargslist(node *tree)
break;
}
}
/* ... '*' NAME [',' '**' NAME] | '**' NAME
/* .. ('*' [NAME] (',' NAME ['=' test])* [',' '**' NAME] | '**' NAME)
* i --^^^
*/
if (res)

1
Modules/pyexpat.c
View File

@ -279,6 +279,7 @@ getcode(enum HandlerTypes slot, char* func_name, int lineno)
filename = PyString_FromString(__FILE__);
handler_info[slot].tb_code =
PyCode_New(0, /* argcount */
0, /* kwonlyargcount */
0, /* nlocals */
0, /* stacksize */
0, /* flags */

25
Objects/codeobject.c
View File

@ -41,7 +41,8 @@ intern_strings(PyObject *tuple)
PyCodeObject *
PyCode_New(int argcount, int nlocals, int stacksize, int flags,
PyCode_New(int argcount, int kwonlyargcount,
int nlocals, int stacksize, int flags,
PyObject *code, PyObject *consts, PyObject *names,
PyObject *varnames, PyObject *freevars, PyObject *cellvars,
PyObject *filename, PyObject *name, int firstlineno,
@ -80,6 +81,7 @@ PyCode_New(int argcount, int nlocals, int stacksize, int flags,
co = PyObject_NEW(PyCodeObject, &PyCode_Type);
if (co != NULL) {
co->co_argcount = argcount;
co->co_kwonlyargcount = kwonlyargcount;
co->co_nlocals = nlocals;
co->co_stacksize = stacksize;
co->co_flags = flags;
@ -112,6 +114,7 @@ PyCode_New(int argcount, int nlocals, int stacksize, int flags,
static PyMemberDef code_memberlist[] = {
{"co_argcount", T_INT, OFF(co_argcount), READONLY},
{"co_kwonlyargcount", T_INT, OFF(co_kwonlyargcount), READONLY},
{"co_nlocals", T_INT, OFF(co_nlocals), READONLY},
{"co_stacksize",T_INT, OFF(co_stacksize), READONLY},
{"co_flags", T_INT, OFF(co_flags), READONLY},
@ -182,6 +185,7 @@ static PyObject *
code_new(PyTypeObject *type, PyObject *args, PyObject *kw)
{
int argcount;
int kwonlyargcount;
int nlocals;
int stacksize;
int flags;
@ -197,8 +201,9 @@ code_new(PyTypeObject *type, PyObject *args, PyObject *kw)
int firstlineno;
PyObject *lnotab;
if (!PyArg_ParseTuple(args, "iiiiSO!O!O!SSiS|O!O!:code",
&argcount, &nlocals, &stacksize, &flags,
if (!PyArg_ParseTuple(args, "iiiiiSO!O!O!SSiS|O!O!:code",
&argcount, &kwonlyargcount,
&nlocals, &stacksize, &flags,
&code,
&PyTuple_Type, &consts,
&PyTuple_Type, &names,
@ -216,6 +221,12 @@ code_new(PyTypeObject *type, PyObject *args, PyObject *kw)
goto cleanup;
}
if (kwonlyargcount < 0) {
PyErr_SetString(
PyExc_ValueError,
"code: kwonlyargcount must not be negative");
goto cleanup;
}
if (nlocals < 0) {
PyErr_SetString(
PyExc_ValueError,
@ -242,7 +253,8 @@ code_new(PyTypeObject *type, PyObject *args, PyObject *kw)
if (ourcellvars == NULL)
goto cleanup;
co = (PyObject *)PyCode_New(argcount, nlocals, stacksize, flags,
co = (PyObject *)PyCode_New(argcount, kwonlyargcount,
nlocals, stacksize, flags,
code, consts, ournames, ourvarnames,
ourfreevars, ourcellvars, filename,
name, firstlineno, lnotab);
@ -312,6 +324,8 @@ code_richcompare(PyObject *self, PyObject *other, int op)
if (eq <= 0) goto unequal;
eq = co->co_argcount == cp->co_argcount;
if (!eq) goto unequal;
eq = co->co_kwonlyargcount == cp->co_kwonlyargcount;
if (!eq) goto unequal;
eq = co->co_nlocals == cp->co_nlocals;
if (!eq) goto unequal;
eq = co->co_flags == cp->co_flags;
@ -369,7 +383,8 @@ code_hash(PyCodeObject *co)
h6 = PyObject_Hash(co->co_cellvars);
if (h6 == -1) return -1;
h = h0 ^ h1 ^ h2 ^ h3 ^ h4 ^ h5 ^ h6 ^
co->co_argcount ^ co->co_nlocals ^ co->co_flags;
co->co_argcount ^ co->co_kwonlyargcount ^
co->co_nlocals ^ co->co_flags;
if (h == -1) h = -2;
return h;
}

73
Objects/funcobject.c
View File

@ -24,6 +24,7 @@ PyFunction_New(PyObject *code, PyObject *globals)
op->func_name = ((PyCodeObject *)code)->co_name;
Py_INCREF(op->func_name);
op->func_defaults = NULL; /* No default arguments */
op->func_kwdefaults = NULL; /* No keyword only defaults */
op->func_closure = NULL;
consts = ((PyCodeObject *)code)->co_consts;
if (PyTuple_Size(consts) >= 1) {
@ -121,6 +122,38 @@ PyFunction_SetDefaults(PyObject *op, PyObject *defaults)
return 0;
}
PyObject *
PyFunction_GetKwDefaults(PyObject *op)
{
if (!PyFunction_Check(op)) {
PyErr_BadInternalCall();
return NULL;
}
return ((PyFunctionObject *) op) -> func_kwdefaults;
}
int
PyFunction_SetKwDefaults(PyObject *op, PyObject *defaults)
{
if (!PyFunction_Check(op)) {
PyErr_BadInternalCall();
return -1;
}
if (defaults == Py_None)
defaults = NULL;
else if (defaults && PyDict_Check(defaults)) {
Py_INCREF(defaults);
}
else {
PyErr_SetString(PyExc_SystemError,
"non-dict keyword only default args");
return -1;
}
Py_XDECREF(((PyFunctionObject *)op) -> func_kwdefaults);
((PyFunctionObject *) op) -> func_kwdefaults = defaults;
return 0;
}
PyObject *
PyFunction_GetClosure(PyObject *op)
{
@ -325,10 +358,49 @@ func_set_defaults(PyFunctionObject *op, PyObject *value)
return 0;
}
static PyObject *
func_get_kwdefaults(PyFunctionObject *op)
{
if (restricted())
return NULL;
if (op->func_kwdefaults == NULL) {
Py_INCREF(Py_None);
return Py_None;
}
Py_INCREF(op->func_kwdefaults);
return op->func_kwdefaults;
}
static int
func_set_kwdefaults(PyFunctionObject *op, PyObject *value)
{
PyObject *tmp;
if (restricted())
return -1;
if (value == Py_None)
value = NULL;
/* Legal to del f.func_defaults.
* Can only set func_kwdefaults to NULL or a dict. */
if (value != NULL && !PyDict_Check(value)) {
PyErr_SetString(PyExc_TypeError,
"func_kwdefaults must be set to a dict object");
return -1;
}
tmp = op->func_kwdefaults;
Py_XINCREF(value);
op->func_kwdefaults = value;
Py_XDECREF(tmp);
return 0;
}
static PyGetSetDef func_getsetlist[] = {
{"func_code", (getter)func_get_code, (setter)func_set_code},
{"func_defaults", (getter)func_get_defaults,
(setter)func_set_defaults},
{"func_kwdefaults", (getter)func_get_kwdefaults,
(setter)func_set_kwdefaults},
{"func_dict", (getter)func_get_dict, (setter)func_set_dict},
{"__dict__", (getter)func_get_dict, (setter)func_set_dict},
{"func_name", (getter)func_get_name, (setter)func_set_name},
@ -519,6 +591,7 @@ function_call(PyObject *func, PyObject *arg, PyObject *kw)
PyFunction_GET_GLOBALS(func), (PyObject *)NULL,
&PyTuple_GET_ITEM(arg, 0), PyTuple_Size(arg),
k, nk, d, nd,
PyFunction_GET_KW_DEFAULTS(func),
PyFunction_GET_CLOSURE(func));
if (k != NULL)

4
Parser/Python.asdl
View File

@ -100,8 +100,8 @@ module Python version "$Revision$"
excepthandler = (expr? type, expr? name, stmt* body, int lineno,
int col_offset)
arguments = (expr* args, identifier? vararg,
identifier? kwarg, expr* defaults)
arguments = (expr* args, identifier? vararg, expr* kwonlyargs,
identifier? kwarg, expr* defaults, expr* kw_defaults)
-- keyword arguments supplied to call
keyword = (identifier arg, expr value)

22
Python/Python-ast.c
View File

@ -333,8 +333,10 @@ static PyObject* ast2obj_arguments(void*);
static char *arguments_fields[]={
"args",
"vararg",
"kwonlyargs",
"kwarg",
"defaults",
"kw_defaults",
};
static PyTypeObject *keyword_type;
static PyObject* ast2obj_keyword(void*);
@ -708,7 +710,7 @@ static int init_types(void)
excepthandler_type = make_type("excepthandler", AST_type,
excepthandler_fields, 5);
if (!excepthandler_type) return 0;
arguments_type = make_type("arguments", AST_type, arguments_fields, 4);
arguments_type = make_type("arguments", AST_type, arguments_fields, 6);
if (!arguments_type) return 0;
keyword_type = make_type("keyword", AST_type, keyword_fields, 2);
if (!keyword_type) return 0;
@ -1828,8 +1830,8 @@ excepthandler(expr_ty type, expr_ty name, asdl_seq * body, int lineno, int
}
arguments_ty
arguments(asdl_seq * args, identifier vararg, identifier kwarg, asdl_seq *
defaults, PyArena *arena)
arguments(asdl_seq * args, identifier vararg, asdl_seq * kwonlyargs, identifier
kwarg, asdl_seq * defaults, asdl_seq * kw_defaults, PyArena *arena)
{
arguments_ty p;
p = (arguments_ty)PyArena_Malloc(arena, sizeof(*p));
@ -1839,8 +1841,10 @@ arguments(asdl_seq * args, identifier vararg, identifier kwarg, asdl_seq *
}
p->args = args;
p->vararg = vararg;
p->kwonlyargs = kwonlyargs;
p->kwarg = kwarg;
p->defaults = defaults;
p->kw_defaults = kw_defaults;
return p;
}
@ -2907,6 +2911,11 @@ ast2obj_arguments(void* _o)
if (PyObject_SetAttrString(result, "vararg", value) == -1)
goto failed;
Py_DECREF(value);
value = ast2obj_list(o->kwonlyargs, ast2obj_expr);
if (!value) goto failed;
if (PyObject_SetAttrString(result, "kwonlyargs", value) == -1)
goto failed;
Py_DECREF(value);
value = ast2obj_identifier(o->kwarg);
if (!value) goto failed;
if (PyObject_SetAttrString(result, "kwarg", value) == -1)
@ -2917,6 +2926,11 @@ ast2obj_arguments(void* _o)
if (PyObject_SetAttrString(result, "defaults", value) == -1)
goto failed;
Py_DECREF(value);
value = ast2obj_list(o->kw_defaults, ast2obj_expr);
if (!value) goto failed;
if (PyObject_SetAttrString(result, "kw_defaults", value) == -1)
goto failed;
Py_DECREF(value);
return result;
failed:
Py_XDECREF(value);
@ -2994,7 +3008,7 @@ init_ast(void)
if (PyDict_SetItemString(d, "AST", (PyObject*)AST_type) < 0) return;
if (PyModule_AddIntConstant(m, "PyCF_ONLY_AST", PyCF_ONLY_AST) < 0)
return;
if (PyModule_AddStringConstant(m, "__version__", "51631") < 0)
if (PyModule_AddStringConstant(m, "__version__", "51773") < 0)
return;
if (PyDict_SetItemString(d, "mod", (PyObject*)mod_type) < 0) return;
if (PyDict_SetItemString(d, "Module", (PyObject*)Module_type) < 0)

159
Python/ast.c
View File

@ -591,6 +591,63 @@ compiler_complex_args(struct compiling *c, const node *n)
return result;
}
/* returns -1 if failed to handle keyword only arguments
returns new position to keep processing if successful
(',' NAME ['=' test])*
^^^
start pointing here
*/
static int
handle_keywordonly_args(struct compiling *c, const node *n, int start,
asdl_seq *kwonlyargs, asdl_seq *kwdefaults)
{
node *ch;
expr_ty name;
int i = start;
int j = 0; /* index for kwdefaults and kwonlyargs */
assert(kwonlyargs != NULL);
assert(kwdefaults != NULL);
while (i < NCH(n)) {
ch = CHILD(n, i);
switch (TYPE(ch)) {
case NAME:
if (i + 1 < NCH(n) && TYPE(CHILD(n, i + 1)) == EQUAL) {
expr_ty expression = ast_for_expr(c, CHILD(n, i + 2));
if (!expression) {
ast_error(ch, "assignment to None");
goto error;
}
asdl_seq_SET(kwdefaults, j, expression);
i += 2; /* '=' and test */
}
else { /* setting NULL if no default value exists */
asdl_seq_SET(kwdefaults, j, NULL);
}
if (!strcmp(STR(ch), "None")) {
ast_error(ch, "assignment to None");
goto error;
}
name = Name(NEW_IDENTIFIER(ch),
Param, LINENO(ch), ch->n_col_offset,
c->c_arena);
if (!name) {
ast_error(ch, "expecting name");
goto error;
}
asdl_seq_SET(kwonlyargs, j++, name);
i += 2; /* the name and the comma */
break;
case DOUBLESTAR:
return i;
default:
ast_error(ch, "unexpected node");
goto error;
}
}
return i;
error:
return -1;
}
/* Create AST for argument list. */
@ -598,35 +655,71 @@ static arguments_ty
ast_for_arguments(struct compiling *c, const node *n)
{
/* parameters: '(' [varargslist] ')'
varargslist: (fpdef ['=' test] ',')* ('*' NAME [',' '**' NAME]
| '**' NAME) | fpdef ['=' test] (',' fpdef ['=' test])* [',']
varargslist: (fpdef ['=' test] ',')*
('*' [NAME] (',' fpdef ['=' test])* [',' '**' NAME] | '**' NAME)
| fpdef ['=' test] (',' fpdef ['=' test])* [',']
*/
int i, j, k, n_args = 0, n_defaults = 0, found_default = 0;
asdl_seq *args, *defaults;
int i, j, k, nposargs = 0, nkwonlyargs = 0;
int nposdefaults = 0, found_default = 0;
asdl_seq *posargs, *posdefaults, *kwonlyargs, *kwdefaults;
identifier vararg = NULL, kwarg = NULL;
node *ch;
if (TYPE(n) == parameters) {
if (NCH(n) == 2) /* () as argument list */
return arguments(NULL, NULL, NULL, NULL, c->c_arena);
return arguments(NULL, NULL, NULL, NULL, NULL, NULL, c->c_arena);
n = CHILD(n, 1);
}
REQ(n, varargslist);
/* first count the number of normal args & defaults */
/* first count the number of positional args & defaults */
for (i = 0; i < NCH(n); i++) {
ch = CHILD(n, i);
if (TYPE(ch) == fpdef)
n_args++;
if (TYPE(ch) == EQUAL)
n_defaults++;
if (TYPE(ch) == STAR) {
if (TYPE(CHILD(n, i+1)) == NAME) {
/* skip NAME of vararg */
/* so that following can count only keyword only args */
i += 2;
}
args = (n_args ? asdl_seq_new(n_args, c->c_arena) : NULL);
if (!args && n_args)
else {
i++;
}
break;
}
if (TYPE(ch) == fpdef) nposargs++;
if (TYPE(ch) == EQUAL) nposdefaults++;
}
/* count the number of keyword only args &
defaults for keyword only args */
for ( ; i < NCH(n); ++i) {
ch = CHILD(n, i);
if (TYPE(ch) == DOUBLESTAR) break;
if (TYPE(ch) == NAME) nkwonlyargs++;
}
posargs = (nposargs ? asdl_seq_new(nposargs, c->c_arena) : NULL);
if (!posargs && nposargs)
return NULL; /* Don't need to goto error; no objects allocated */
defaults = (n_defaults ? asdl_seq_new(n_defaults, c->c_arena) : NULL);
if (!defaults && n_defaults)
kwonlyargs = (nkwonlyargs ?
asdl_seq_new(nkwonlyargs, c->c_arena) : NULL);
if (!kwonlyargs && nkwonlyargs)
return NULL; /* Don't need to goto error; no objects allocated */
posdefaults = (nposdefaults ?
asdl_seq_new(nposdefaults, c->c_arena) : NULL);
if (!posdefaults && nposdefaults)
return NULL; /* Don't need to goto error; no objects allocated */
/* The length of kwonlyargs and kwdefaults are same
since we set NULL as default for keyword only argument w/o default
- we have sequence data structure, but no dictionary */
kwdefaults = (nkwonlyargs ?
asdl_seq_new(nkwonlyargs, c->c_arena) : NULL);
if (!kwdefaults && nkwonlyargs)
return NULL; /* Don't need to goto error; no objects allocated */
if (nposargs + nkwonlyargs > 255) {
ast_error(n, "more than 255 arguments");
return NULL;
}
/* fpdef: NAME | '(' fplist ')'
fplist: fpdef (',' fpdef)* [',']
@ -645,8 +738,9 @@ ast_for_arguments(struct compiling *c, const node *n)
expr_ty expression = ast_for_expr(c, CHILD(n, i + 2));
if (!expression)
goto error;
assert(defaults != NULL);
asdl_seq_SET(defaults, j++, expression);
assert(posdefaults != NULL);
asdl_seq_SET(posdefaults, j++, expression);
i += 2;
found_default = 1;
}
@ -660,7 +754,8 @@ ast_for_arguments(struct compiling *c, const node *n)
/* def foo((x)): is not complex, special case. */
if (NCH(ch) != 1) {
/* We have complex arguments, setup for unpacking. */
asdl_seq_SET(args, k++, compiler_complex_args(c, ch));
asdl_seq_SET(posargs, k++,
compiler_complex_args(c, ch));
} else {
/* def foo((x)): setup for checking NAME below. */
ch = CHILD(ch, 0);
@ -677,18 +772,39 @@ ast_for_arguments(struct compiling *c, const node *n)
c->c_arena);
if (!name)
goto error;
asdl_seq_SET(args, k++, name);
asdl_seq_SET(posargs, k++, name);
}
i += 2; /* the name and the comma */
break;
case STAR:
if (i+1 >= NCH(n)) {
ast_error(CHILD(n, i), "no name for vararg");
goto error;
}
if (!strcmp(STR(CHILD(n, i+1)), "None")) {
ast_error(CHILD(n, i+1), "assignment to None");
goto error;
}
if (TYPE(CHILD(n, i+1)) == COMMA) {
int res = 0;
i += 2; /* now follows keyword only arguments */
res = handle_keywordonly_args(c, n, i,
kwonlyargs, kwdefaults);
if (res == -1) goto error;
i = res; /* res has new position to process */
}
else {
vararg = NEW_IDENTIFIER(CHILD(n, i+1));
i += 3;
if (i < NCH(n) && TYPE(CHILD(n, i)) == NAME) {
int res = 0;
res = handle_keywordonly_args(c, n, i,
kwonlyargs, kwdefaults);
if (res == -1) goto error;
i = res; /* res has new position to process */
}
}
break;
case DOUBLESTAR:
if (!strcmp(STR(CHILD(n, i+1)), "None")) {
@ -705,9 +821,8 @@ ast_for_arguments(struct compiling *c, const node *n)
goto error;
}
}
return arguments(args, vararg, kwarg, defaults, c->c_arena);
return arguments(posargs, vararg, kwonlyargs, kwarg,
posdefaults, kwdefaults, c->c_arena);
error:
Py_XDECREF(vararg);
Py_XDECREF(kwarg);
@ -851,7 +966,7 @@ ast_for_lambdef(struct compiling *c, const node *n)
expr_ty expression;
if (NCH(n) == 3) {
args = arguments(NULL, NULL, NULL, NULL, c->c_arena);
args = arguments(NULL, NULL, NULL, NULL, NULL, NULL, c->c_arena);
if (!args)
return NULL;
expression = ast_for_expr(c, CHILD(n, 2));

78
Python/ceval.c
View File

@ -494,7 +494,7 @@ PyEval_EvalCode(PyCodeObject *co, PyObject *globals, PyObject *locals)
(PyObject **)NULL, 0,
(PyObject **)NULL, 0,
(PyObject **)NULL, 0,
NULL);
NULL, NULL);
}
@ -2290,26 +2290,46 @@ PyEval_EvalFrameEx(PyFrameObject *f, int throwflag)
}
case MAKE_FUNCTION:
{
int posdefaults = oparg & 0xff;
int kwdefaults = (oparg>>8) & 0xff;
v = POP(); /* code object */
x = PyFunction_New(v, f->f_globals);
Py_DECREF(v);
/* XXX Maybe this should be a separate opcode? */
if (x != NULL && oparg > 0) {
v = PyTuple_New(oparg);
if (x != NULL && posdefaults > 0) {
v = PyTuple_New(posdefaults);
if (v == NULL) {
Py_DECREF(x);
x = NULL;
break;
}
while (--oparg >= 0) {
while (--posdefaults >= 0) {
w = POP();
PyTuple_SET_ITEM(v, oparg, w);
PyTuple_SET_ITEM(v, posdefaults, w);
}
err = PyFunction_SetDefaults(x, v);
Py_DECREF(v);
}
if (x != NULL && kwdefaults > 0) {
v = PyDict_New();
if (v == NULL) {
Py_DECREF(x);
x = NULL;
break;
}
while (--kwdefaults >= 0) {
w = POP(); /* default value */
u = POP(); /* kw only arg name */
PyDict_SetItem(v, u, w);
}
err = PyFunction_SetKwDefaults(x, v);
Py_DECREF(v);
}
PUSH(x);
break;
}
case MAKE_CLOSURE:
{
@ -2577,7 +2597,7 @@ fast_yield:
PyObject *
PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
PyObject **args, int argcount, PyObject **kws, int kwcount,
PyObject **defs, int defcount, PyObject *closure)
PyObject **defs, int defcount, PyObject *kwdefs, PyObject *closure)
{
register PyFrameObject *f;
register PyObject *retval = NULL;
@ -2601,6 +2621,7 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
freevars = f->f_localsplus + co->co_nlocals;
if (co->co_argcount > 0 ||
co->co_kwonlyargcount > 0 ||
co->co_flags & (CO_VARARGS | CO_VARKEYWORDS)) {
int i;
int n = argcount;
@ -2609,7 +2630,7 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
kwdict = PyDict_New();
if (kwdict == NULL)
goto fail;
i = co->co_argcount;
i = co->co_argcount + co->co_kwonlyargcount;
if (co->co_flags & CO_VARARGS)
i++;
SETLOCAL(i, kwdict);
@ -2618,7 +2639,7 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
if (!(co->co_flags & CO_VARARGS)) {
PyErr_Format(PyExc_TypeError,
"%.200s() takes %s %d "
"%sargument%s (%d given)",
"%spositional argument%s (%d given)",
PyString_AsString(co->co_name),
defcount ? "at most" : "exactly",
co->co_argcount,
@ -2638,7 +2659,7 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
u = PyTuple_New(argcount - n);
if (u == NULL)
goto fail;
SETLOCAL(co->co_argcount, u);
SETLOCAL(co->co_argcount + co->co_kwonlyargcount, u);
for (i = n; i < argcount; i++) {
x = args[i];
Py_INCREF(x);
@ -2656,7 +2677,9 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
goto fail;
}
/* XXX slow -- speed up using dictionary? */
for (j = 0; j < co->co_argcount; j++) {
for (j = 0;
j < co->co_argcount + co->co_kwonlyargcount;
j++) {
PyObject *nm = PyTuple_GET_ITEM(
co->co_varnames, j);
int cmp = PyObject_RichCompareBool(
@ -2669,7 +2692,7 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
/* Check errors from Compare */
if (PyErr_Occurred())
goto fail;
if (j >= co->co_argcount) {
if (j >= co->co_argcount + co->co_kwonlyargcount) {
if (kwdict == NULL) {
PyErr_Format(PyExc_TypeError,
"%.200s() got an unexpected "
@ -2694,13 +2717,38 @@ PyEval_EvalCodeEx(PyCodeObject *co, PyObject *globals, PyObject *locals,
SETLOCAL(j, value);
}
}
if (co->co_kwonlyargcount > 0) {
for (i = co->co_argcount;
i < co->co_argcount + co->co_kwonlyargcount;
i++) {
if (GETLOCAL(i) != NULL)
continue;
PyObject *name =
PyTuple_GET_ITEM(co->co_varnames, i);
PyObject *def = NULL;
if (kwdefs != NULL)
def = PyDict_GetItem(kwdefs, name);
if (def != NULL) {
Py_INCREF(def);
SETLOCAL(i, def);
continue;
}
PyErr_Format(PyExc_TypeError,
"%.200s() needs "
"keyword only argument %s",
PyString_AsString(co->co_name),
PyString_AsString(name));
goto fail;
}
}
if (argcount < co->co_argcount) {
int m = co->co_argcount - defcount;
for (i = argcount; i < m; i++) {
if (GETLOCAL(i) == NULL) {
PyErr_Format(PyExc_TypeError,
"%.200s() takes %s %d "
"%sargument%s (%d given)",
"%spositional argument%s "
"(%d given)",
PyString_AsString(co->co_name),
((co->co_flags & CO_VARARGS) ||
defcount) ? "at least"
@ -3565,12 +3613,14 @@ fast_function(PyObject *func, PyObject ***pp_stack, int n, int na, int nk)
PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
PyObject *globals = PyFunction_GET_GLOBALS(func);
PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
PyObject *kwdefs = PyFunction_GET_KW_DEFAULTS(func);
PyObject **d = NULL;
int nd = 0;
PCALL(PCALL_FUNCTION);
PCALL(PCALL_FAST_FUNCTION);
if (argdefs == NULL && co->co_argcount == n && nk==0 &&
if (argdefs == NULL && co->co_argcount == n &&
co->co_kwonlyargcount == 0 && nk==0 &&
co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
PyFrameObject *f;
PyObject *retval = NULL;
@ -3608,7 +3658,7 @@ fast_function(PyObject *func, PyObject ***pp_stack, int n, int na, int nk)
}
return PyEval_EvalCodeEx(co, globals,
(PyObject *)NULL, (*pp_stack)-n, na,
(*pp_stack)-2*nk, nk, d, nd,
(*pp_stack)-2*nk, nk, d, nd, kwdefs,
PyFunction_GET_CLOSURE(func));
}

55
Python/compile.c
View File

@ -115,6 +115,7 @@ struct compiler_unit {
PyObject *u_private; /* for private name mangling */
int u_argcount; /* number of arguments for block */
int u_kwonlyargcount; /* number of keyword only arguments for block */
/* Pointer to the most recently allocated block. By following b_list
members, you can reach all early allocated blocks. */
basicblock *u_blocks;
@ -494,6 +495,7 @@ compiler_enter_scope(struct compiler *c, identifier name, void *key,
}
memset(u, 0, sizeof(struct compiler_unit));
u->u_argcount = 0;
u->u_kwonlyargcount = 0;
u->u_ste = PySymtable_Lookup(c->c_st, key);
if (!u->u_ste) {
compiler_unit_free(u);
@ -896,9 +898,9 @@ opcode_stack_effect(int opcode, int oparg)
return -NARGS(oparg)-1;
case CALL_FUNCTION_VAR_KW:
return -NARGS(oparg)-2;
#undef NARGS
case MAKE_FUNCTION:
return -oparg;
return -NARGS(oparg);
#undef NARGS
case BUILD_SLICE:
if (oparg == 3)
return -2;
@ -1346,6 +1348,25 @@ compiler_arguments(struct compiler *c, arguments_ty args)
return 1;
}
static int
compiler_visit_kwonlydefaults(struct compiler *c, asdl_seq *kwonlyargs,
asdl_seq *kw_defaults)
{
int i, default_count = 0;
for (i = 0; i < asdl_seq_LEN(kwonlyargs); i++) {
expr_ty arg = asdl_seq_GET(kwonlyargs, i);
expr_ty default_ = asdl_seq_GET(kw_defaults, i);
if (default_) {
ADDOP_O(c, LOAD_CONST, arg->v.Name.id, consts);
if (!compiler_visit_expr(c, default_)) {
return -1;
}
default_count++;
}
}
return default_count;
}
static int
compiler_function(struct compiler *c, stmt_ty s)
{
@ -1354,14 +1375,22 @@ compiler_function(struct compiler *c, stmt_ty s)
arguments_ty args = s->v.FunctionDef.args;
asdl_seq* decos = s->v.FunctionDef.decorators;
stmt_ty st;
int i, n, docstring;
int i, n, docstring, kw_default_count = 0, arglength;
assert(s->kind == FunctionDef_kind);
if (!compiler_decorators(c, decos))
return 0;
if (args->kwonlyargs) {
int res = compiler_visit_kwonlydefaults(c, args->kwonlyargs,
args->kw_defaults);
if (res < 0)
return 0;
kw_default_count = res;
}
if (args->defaults)
VISIT_SEQ(c, expr, args->defaults);
if (!compiler_enter_scope(c, s->v.FunctionDef.name, (void *)s,
s->lineno))
return 0;
@ -1379,6 +1408,7 @@ compiler_function(struct compiler *c, stmt_ty s)
compiler_arguments(c, args);
c->u->u_argcount = asdl_seq_LEN(args->args);
c->u->u_kwonlyargcount = asdl_seq_LEN(args->kwonlyargs);
n = asdl_seq_LEN(s->v.FunctionDef.body);
/* if there was a docstring, we need to skip the first statement */
for (i = docstring; i < n; i++) {
@ -1390,7 +1420,9 @@ compiler_function(struct compiler *c, stmt_ty s)
if (co == NULL)
return 0;
compiler_make_closure(c, co, asdl_seq_LEN(args->defaults));
arglength = asdl_seq_LEN(args->defaults);
arglength |= kw_default_count << 8;
compiler_make_closure(c, co, arglength);
Py_DECREF(co);
for (i = 0; i < asdl_seq_LEN(decos); i++) {
@ -1485,6 +1517,7 @@ compiler_lambda(struct compiler *c, expr_ty e)
{
PyCodeObject *co;
static identifier name;
int kw_default_count = 0, arglength;
arguments_ty args = e->v.Lambda.args;
assert(e->kind == Lambda_kind);
@ -1494,6 +1527,12 @@ compiler_lambda(struct compiler *c, expr_ty e)
return 0;
}
if (args->kwonlyargs) {
int res = compiler_visit_kwonlydefaults(c, args->kwonlyargs,
args->kw_defaults);
if (res < 0) return 0;
kw_default_count = res;
}
if (args->defaults)
VISIT_SEQ(c, expr, args->defaults);
if (!compiler_enter_scope(c, name, (void *)e, e->lineno))
@ -1503,6 +1542,7 @@ compiler_lambda(struct compiler *c, expr_ty e)
compiler_arguments(c, args);
c->u->u_argcount = asdl_seq_LEN(args->args);
c->u->u_kwonlyargcount = asdl_seq_LEN(args->kwonlyargs);
VISIT_IN_SCOPE(c, expr, e->v.Lambda.body);
ADDOP_IN_SCOPE(c, RETURN_VALUE);
co = assemble(c, 1);
@ -1510,7 +1550,9 @@ compiler_lambda(struct compiler *c, expr_ty e)
if (co == NULL)
return 0;
compiler_make_closure(c, co, asdl_seq_LEN(args->defaults));
arglength = asdl_seq_LEN(args->defaults);
arglength |= kw_default_count << 8;
compiler_make_closure(c, co, arglength);
Py_DECREF(co);
return 1;
@ -3791,7 +3833,8 @@ makecode(struct compiler *c, struct assembler *a)
Py_DECREF(consts);
consts = tmp;
co = PyCode_New(c->u->u_argcount, nlocals, stackdepth(c), flags,
co = PyCode_New(c->u->u_argcount, c->u->u_kwonlyargcount,
nlocals, stackdepth(c), flags,
bytecode, consts, names, varnames,
freevars, cellvars,
filename, c->u->u_name,

49
Python/graminit.c
View File

@ -146,14 +146,16 @@ static arc arcs_7_1[3] = {
{27, 5},
{0, 1},
};
static arc arcs_7_2[1] = {
static arc arcs_7_2[3] = {
{19, 6},
{27, 7},
{0, 2},
};
static arc arcs_7_3[1] = {
{19, 7},
{19, 8},
};
static arc arcs_7_4[1] = {
{26, 8},
{26, 9},
};
static arc arcs_7_5[4] = {
{24, 1},
@ -162,30 +164,41 @@ static arc arcs_7_5[4] = {
{0, 5},
};
static arc arcs_7_6[2] = {
{27, 9},
{27, 7},
{0, 6},
};
static arc arcs_7_7[1] = {
{0, 7},
};
static arc arcs_7_8[2] = {
{27, 5},
{0, 8},
};
static arc arcs_7_9[1] = {
static arc arcs_7_7[2] = {
{19, 10},
{29, 3},
};
static state states_7[10] = {
static arc arcs_7_8[1] = {
{0, 8},
};
static arc arcs_7_9[2] = {
{27, 5},
{0, 9},
};
static arc arcs_7_10[3] = {
{27, 7},
{25, 11},
{0, 10},
};
static arc arcs_7_11[1] = {
{26, 6},
};
static state states_7[12] = {
{3, arcs_7_0},
{3, arcs_7_1},
{1, arcs_7_2},
{3, arcs_7_2},
{1, arcs_7_3},
{1, arcs_7_4},
{4, arcs_7_5},
{2, arcs_7_6},
{1, arcs_7_7},
{2, arcs_7_8},
{1, arcs_7_9},
{2, arcs_7_7},
{1, arcs_7_8},
{2, arcs_7_9},
{3, arcs_7_10},
{1, arcs_7_11},
};
static arc arcs_8_0[2] = {
{19, 1},
@ -1766,7 +1779,7 @@ static dfa dfas[83] = {
"\000\010\004\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
{262, "parameters", 0, 4, states_6,
"\000\040\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
{263, "varargslist", 0, 10, states_7,
{263, "varargslist", 0, 12, states_7,
"\000\040\010\060\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},
{264, "fpdef", 0, 4, states_8,
"\000\040\010\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"},

3
Python/import.c
View File

@ -67,9 +67,10 @@ extern time_t PyOS_GetLastModificationTime(char *, FILE *);
Python 3000: 3000
3010 (removed UNARY_CONVERT)
3020 (added BUILD_SET)
3030 (added keyword-only parameters)
.
*/
#define MAGIC (3020 | ((long)'\r'<<16) | ((long)'\n'<<24))
#define MAGIC (3030 | ((long)'\r'<<16) | ((long)'\n'<<24))
/* Magic word as global; note that _PyImport_Init() can change the
value of this global to accommodate for alterations of how the

6
Python/marshal.c
View File

@ -349,6 +349,7 @@ w_object(PyObject *v, WFILE *p)
PyCodeObject *co = (PyCodeObject *)v;
w_byte(TYPE_CODE, p);
w_long(co->co_argcount, p);
w_long(co->co_kwonlyargcount, p);
w_long(co->co_nlocals, p);
w_long(co->co_stacksize, p);
w_long(co->co_flags, p);
@ -815,6 +816,7 @@ r_object(RFILE *p)
}
else {
int argcount;
int kwonlyargcount;
int nlocals;
int stacksize;
int flags;
@ -832,6 +834,7 @@ r_object(RFILE *p)
v = NULL;
argcount = r_long(p);
kwonlyargcount = r_long(p);
nlocals = r_long(p);
stacksize = r_long(p);
flags = r_long(p);
@ -865,7 +868,8 @@ r_object(RFILE *p)
goto code_error;
v = (PyObject *) PyCode_New(
argcount, nlocals, stacksize, flags,
argcount, kwonlyargcount,
nlocals, stacksize, flags,
code, consts, names, varnames,
freevars, cellvars, filename, name,
firstlineno, lnotab);

18
Python/symtable.c
View File

@ -893,6 +893,17 @@ error:
} \
}
#define VISIT_KWONLYDEFAULTS(ST, KW_DEFAULTS) { \
int i = 0; \
asdl_seq *seq = (KW_DEFAULTS); /* avoid variable capture */ \
for (i = 0; i < asdl_seq_LEN(seq); i++) { \
expr_ty elt = (expr_ty)asdl_seq_GET(seq, i); \
if (!elt) continue; /* can be NULL */ \
if (!symtable_visit_expr((ST), elt)) \
return 0; \
} \
}
static int
symtable_new_tmpname(struct symtable *st)
{
@ -910,6 +921,8 @@ symtable_new_tmpname(struct symtable *st)
return 1;
}
static int
symtable_visit_stmt(struct symtable *st, stmt_ty s)
{
@ -919,6 +932,9 @@ symtable_visit_stmt(struct symtable *st, stmt_ty s)
return 0;
if (s->v.FunctionDef.args->defaults)
VISIT_SEQ(st, expr, s->v.FunctionDef.args->defaults);
if (s->v.FunctionDef.args->kw_defaults)
VISIT_KWONLYDEFAULTS(st,
s->v.FunctionDef.args->kw_defaults);
if (s->v.FunctionDef.decorators)
VISIT_SEQ(st, expr, s->v.FunctionDef.decorators);
if (!symtable_enter_block(st, s->v.FunctionDef.name,
@ -1262,6 +1278,8 @@ symtable_visit_arguments(struct symtable *st, arguments_ty a)
*/
if (a->args && !symtable_visit_params(st, a->args, 1))
return 0;
if (a->kwonlyargs && !symtable_visit_params(st, a->kwonlyargs, 1))
return 0;
if (a->vararg) {
if (!symtable_add_def(st, a->vararg, DEF_PARAM))
return 0;

5
Tools/compiler/ast.txt
View File

@ -12,8 +12,8 @@
Module: doc*, node
Stmt: nodes!
Decorators: nodes!
Function: decorators&, name*, argnames*, defaults!, flags*, doc*, code
Lambda: argnames*, defaults!, flags*, code
Function: decorators&, name*, argnames*, defaults!, kwonlyargs*, flags*, doc*, code
Lambda: argnames*, defaults!, kwonlyargs*, flags*, code
Class: name*, bases!, doc*, code
Pass:
Break:
@ -97,6 +97,7 @@ init(Lambda):
init(GenExpr):
self.argnames = ['.0']
self.varargs = self.kwargs = None
self.kwonlyargs = ()
init(GenExprFor):
self.is_outmost = False