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bpo-41746: Add type information to asdl_seq objects (GH-22223)

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* Add new capability to the PEG parser to type variable assignments. For instance:
```
       | a[asdl_stmt_seq*]=';'.small_stmt+ [';'] NEWLINE { a }
```

* Add new sequence types from the asdl definition (automatically generated)
* Make `asdl_seq` type a generic aliasing pointer type.
* Create a new `asdl_generic_seq` for the generic case using `void*`.
* The old `asdl_seq_GET`/`ast_seq_SET` macros now are typed.
* New `asdl_seq_GET_UNTYPED`/`ast_seq_SET_UNTYPED` macros for dealing with generic sequences.
* Changes all possible `asdl_seq` types to use specific versions everywhere.
This commit is contained in:
Pablo Galindo 2020-09-16 19:42:00 +01:00 • committed by GitHub
parent 5c1b46d897
commit a5634c4067
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22 changed files with 1338 additions and 1086 deletions
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8
Python/ast_unparse.c
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@ -117,7 +117,7 @@ static int
append_ast_boolop(_PyUnicodeWriter *writer, expr_ty e, int level)
{
Py_ssize_t i, value_count;
asdl_seq *values;
asdl_expr_seq *values;
const char *op = (e->v.BoolOp.op == And) ? " and " : " or ";
int pr = (e->v.BoolOp.op == And) ? PR_AND : PR_OR;
@ -398,7 +398,7 @@ append_ast_comprehension(_PyUnicodeWriter *writer, comprehension_ty gen)
}
static int
append_ast_comprehensions(_PyUnicodeWriter *writer, asdl_seq *comprehensions)
append_ast_comprehensions(_PyUnicodeWriter *writer, asdl_comprehension_seq *comprehensions)
{
Py_ssize_t i, gen_count;
gen_count = asdl_seq_LEN(comprehensions);
@ -453,7 +453,7 @@ append_ast_compare(_PyUnicodeWriter *writer, expr_ty e, int level)
{
const char *op;
Py_ssize_t i, comparator_count;
asdl_seq *comparators;
asdl_expr_seq *comparators;
asdl_int_seq *ops;
APPEND_STR_IF(level > PR_CMP, "(");
@ -612,7 +612,7 @@ append_fstring_element(_PyUnicodeWriter *writer, expr_ty e, bool is_format_spec)
/* Build body separately to enable wrapping the entire stream of Strs,
Constants and FormattedValues in one opening and one closing quote. */
static PyObject *
build_fstring_body(asdl_seq *values, bool is_format_spec)
build_fstring_body(asdl_expr_seq *values, bool is_format_spec)
{
Py_ssize_t i, value_count;
_PyUnicodeWriter body_writer;