Current Dir: /snap/core22/2437/usr/lib/python3.10/lib2to3/fixes/
[DIR] __pycache__ [ delete | rename ]
[FILE] fix_apply.py [ edit | delete | rename ]
[FILE] fix_asserts.py [ edit | delete | rename ]
[FILE] fix_basestring.py [ edit | delete | rename ]
[FILE] fix_buffer.py [ edit | delete | rename ]
[FILE] fix_dict.py [ edit | delete | rename ]
[FILE] fix_except.py [ edit | delete | rename ]
[FILE] fix_exec.py [ edit | delete | rename ]
[FILE] fix_execfile.py [ edit | delete | rename ]
[FILE] fix_exitfunc.py [ edit | delete | rename ]
[FILE] fix_filter.py [ edit | delete | rename ]
[FILE] fix_funcattrs.py [ edit | delete | rename ]
[FILE] fix_future.py [ edit | delete | rename ]
[FILE] fix_getcwdu.py [ edit | delete | rename ]
[FILE] fix_has_key.py [ edit | delete | rename ]
[FILE] fix_idioms.py [ edit | delete | rename ]
[FILE] fix_import.py [ edit | delete | rename ]
[FILE] fix_imports.py [ edit | delete | rename ]
[FILE] fix_imports2.py [ edit | delete | rename ]
[FILE] fix_input.py [ edit | delete | rename ]
[FILE] fix_intern.py [ edit | delete | rename ]
[FILE] fix_isinstance.py [ edit | delete | rename ]
[FILE] fix_itertools.py [ edit | delete | rename ]
[FILE] fix_itertools_imports.py [ edit | delete | rename ]
[FILE] fix_long.py [ edit | delete | rename ]
[FILE] fix_map.py [ edit | delete | rename ]
[FILE] fix_metaclass.py [ edit | delete | rename ]
[FILE] fix_methodattrs.py [ edit | delete | rename ]
[FILE] fix_ne.py [ edit | delete | rename ]
[FILE] fix_next.py [ edit | delete | rename ]
[FILE] fix_nonzero.py [ edit | delete | rename ]
[FILE] fix_numliterals.py [ edit | delete | rename ]
[FILE] fix_operator.py [ edit | delete | rename ]
[FILE] fix_paren.py [ edit | delete | rename ]
[FILE] fix_print.py [ edit | delete | rename ]
[FILE] fix_raise.py [ edit | delete | rename ]
[FILE] fix_raw_input.py [ edit | delete | rename ]
[FILE] fix_reduce.py [ edit | delete | rename ]
[FILE] fix_reload.py [ edit | delete | rename ]
[FILE] fix_renames.py [ edit | delete | rename ]
[FILE] fix_repr.py [ edit | delete | rename ]
[FILE] fix_set_literal.py [ edit | delete | rename ]
[FILE] fix_standarderror.py [ edit | delete | rename ]
[FILE] fix_sys_exc.py [ edit | delete | rename ]
[FILE] fix_throw.py [ edit | delete | rename ]
[FILE] fix_tuple_params.py [ edit | delete | rename ]
[FILE] fix_types.py [ edit | delete | rename ]
[FILE] fix_unicode.py [ edit | delete | rename ]
[FILE] fix_urllib.py [ edit | delete | rename ]
[FILE] fix_ws_comma.py [ edit | delete | rename ]
[FILE] fix_xrange.py [ edit | delete | rename ]
[FILE] fix_xreadlines.py [ edit | delete | rename ]
[FILE] fix_zip.py [ edit | delete | rename ]
[FILE] __init__.py [ edit | delete | rename ]
Viewing: /snap/core22/2437/usr/lib/python3.10/lib2to3/fixes/fix_set_literal.py
"""
Optional fixer to transform set() calls to set literals.
"""
# Author: Benjamin Peterson
from lib2to3 import fixer_base, pytree
from lib2to3.fixer_util import token, syms
class FixSetLiteral(fixer_base.BaseFix):
BM_compatible = True
explicit = True
PATTERN = """power< 'set' trailer< '('
(atom=atom< '[' (items=listmaker< any ((',' any)* [',']) >
|
single=any) ']' >
|
atom< '(' items=testlist_gexp< any ((',' any)* [',']) > ')' >
)
')' > >
"""
def transform(self, node, results):
single = results.get("single")
if single:
# Make a fake listmaker
fake = pytree.Node(syms.listmaker, [single.clone()])
single.replace(fake)
items = fake
else:
items = results["items"]
# Build the contents of the literal
literal = [pytree.Leaf(token.LBRACE, "{")]
literal.extend(n.clone() for n in items.children)
literal.append(pytree.Leaf(token.RBRACE, "}"))
# Set the prefix of the right brace to that of the ')' or ']'
literal[-1].prefix = items.next_sibling.prefix
maker = pytree.Node(syms.dictsetmaker, literal)
maker.prefix = node.prefix
# If the original was a one tuple, we need to remove the extra comma.
if len(maker.children) == 4:
n = maker.children[2]
n.remove()
maker.children[-1].prefix = n.prefix
# Finally, replace the set call with our shiny new literal.
return maker