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bpo-36540: PEP 570 -- Implementation (GH-12701)

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This commit contains the implementation of PEP570: Python positional-only parameters.

* Update Grammar/Grammar with new typedarglist and varargslist

* Regenerate grammar files

* Update and regenerate AST related files

* Update code object

* Update marshal.c

* Update compiler and symtable

* Regenerate importlib files

* Update callable objects

* Implement positional-only args logic in ceval.c

* Regenerate frozen data

* Update standard library to account for positional-only args

* Add test file for positional-only args

* Update other test files to account for positional-only args

* Add News entry

* Update inspect module and related tests
This commit is contained in:
Pablo Galindo 2019-04-29 13:36:57 +01:00 • committed by GitHub
parent 99fcc616d4
commit 8c77b8cb91
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38 changed files with 5771 additions and 4710 deletions
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9
Python/compile.c
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@ -122,6 +122,7 @@ struct compiler_unit {
PyObject *u_private; /* for private name mangling */
Py_ssize_t u_argcount; /* number of arguments for block */
Py_ssize_t u_posonlyargcount; /* number of positional only arguments for block */
Py_ssize_t 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. */
@ -552,6 +553,7 @@ compiler_enter_scope(struct compiler *c, identifier name,
memset(u, 0, sizeof(struct compiler_unit));
u->u_scope_type = scope_type;
u->u_argcount = 0;
u->u_posonlyargcount = 0;
u->u_kwonlyargcount = 0;
u->u_ste = PySymtable_Lookup(c->c_st, key);
if (!u->u_ste) {
@ -2127,6 +2129,7 @@ compiler_function(struct compiler *c, stmt_ty s, int is_async)
}
c->u->u_argcount = asdl_seq_LEN(args->args);
c->u->u_posonlyargcount = asdl_seq_LEN(args->posonlyargs);
c->u->u_kwonlyargcount = asdl_seq_LEN(args->kwonlyargs);
VISIT_SEQ_IN_SCOPE(c, stmt, body);
co = assemble(c, 1);
@ -2507,6 +2510,7 @@ compiler_lambda(struct compiler *c, expr_ty e)
return 0;
c->u->u_argcount = asdl_seq_LEN(args->args);
c->u->u_posonlyargcount = asdl_seq_LEN(args->posonlyargs);
c->u->u_kwonlyargcount = asdl_seq_LEN(args->kwonlyargs);
VISIT_IN_SCOPE(c, expr, e->v.Lambda.body);
if (c->u->u_ste->ste_generator) {
@ -5742,7 +5746,7 @@ makecode(struct compiler *c, struct assembler *a)
Py_ssize_t nlocals;
int nlocals_int;
int flags;
int argcount, kwonlyargcount, maxdepth;
int argcount, posonlyargcount, kwonlyargcount, maxdepth;
consts = consts_dict_keys_inorder(c->u->u_consts);
names = dict_keys_inorder(c->u->u_names, 0);
@ -5787,12 +5791,13 @@ makecode(struct compiler *c, struct assembler *a)
}
argcount = Py_SAFE_DOWNCAST(c->u->u_argcount, Py_ssize_t, int);
posonlyargcount = Py_SAFE_DOWNCAST(c->u->u_posonlyargcount, Py_ssize_t, int);
kwonlyargcount = Py_SAFE_DOWNCAST(c->u->u_kwonlyargcount, Py_ssize_t, int);
maxdepth = stackdepth(c);
if (maxdepth < 0) {
goto error;
}
co = PyCode_New(argcount, kwonlyargcount,
co = PyCode_New(argcount, posonlyargcount, kwonlyargcount,
nlocals_int, maxdepth, flags,
bytecode, consts, names, varnames,
freevars, cellvars,