def lazy_aliasing() -> None:
# We should find the first place where the alias is used and put it
# right above. This way we don't need to look at the value at all.
_, prefix = get_offset_and_prefix(body, skip_assignments=True)
name_node = Leaf(token.NAME, name)
for _offset, stmt in enumerate(body.children):
if name_used_in_node(stmt, name_node):
break
else:
_offset = -1
body.children.insert(
_offset,
Node(
syms.simple_stmt,
[
Node(
syms.expr_stmt,
[
Leaf(token.NAME, name),
new(_eq),
value,
],
),
new(_newline),
],
prefix=prefix.lstrip('\n'),
),
)
def add_sep_part(sep, pos, lst):
if sep is not None and not isNone(sep) and \
not (sep.type == token.STRING and sep.value in ("' '", '" "')):
temp = []
for arg in pos:
temp.append(_unicode(arg.clone()))
if sys.version_info >= (2, 6):
warnings.warn(
"Calling unicode() on what may be a bytes object")
temp.append(Comma())
del temp[-1]
sep = sep.clone()
sep.prefix = " "
args = Node(syms.listmaker, temp)
new_list = Node(syms.atom,
[Leaf(token.LSQB, "["), args,
Leaf(token.RSQB, "]")])
join_arg = Node(syms.trailer, [LParen(), new_list, RParen()])
sep_join = Node(syms.power,
[sep, Node(syms.trailer, [Dot(), Name("join")])])
lst.append(sep_join)
lst.append(join_arg)
else:
if pos:
pos[0].prefix = " "
for arg in pos:
lst.append(arg.clone())
lst.append(Comma())
del lst[-1]
def transform(self, node, results):
args = []
for i in range(len(node.children[0].children)):
if i%2==1:
if i!=1:
args.append(Leaf(1, '&&'))
args.append(Leaf(7, '('))
args.append(node.children[0].children[i].clone())
args.append(Leaf(8, ')'))
args = [\
Leaf(1, 'if'),Leaf(7, '('),\
Leaf(1, '!'),Leaf(7, '('),\
Node(syms.and_expr,args),\
Leaf(8, ')'),Leaf(8, ')'),\
Leaf(token.LBRACE, '{'),\
Node(syms.raise_stmt, [
Leaf(1, 'throw'),
Leaf(3, '"AssertionError"'),
Leaf(1, ';'),
]),
Leaf(token.RBRACE, '}'),Leaf(4, '\r\n')
]
result = Node(syms.testlist1,args)
result.prefix = node.prefix
return result
def _nai_alias(alias, node):
# Comments below show example imports that match the rule.
name = Leaf(token.NAME, alias.name)
if not alias.asname or alias.asname == alias.name:
# import hay, x, stack
# from field import hay, s, stack
if node.type in (syms.dotted_as_names, syms.import_as_names):
return name in node.children
# import x as x
# from field import x as x
if node.type in (syms.dotted_as_name, syms.import_as_name):
return [name, _as, name] == node.children
# import x
return node == name
asname = Leaf(token.NAME, alias.asname)
dotted_as_name = Node(syms.dotted_as_name, [name, _as, asname])
# import hay as stack, x as y
if node.type == syms.dotted_as_names:
return dotted_as_name in node.children
import_as_name = Node(syms.import_as_name, [name, _as, asname])
# from field import hay as stack, x as y
if node.type == syms.import_as_names:
return import_as_name in node.children
# import x as y
# from field import x as y
return node in (dotted_as_name, import_as_name)
def parse(code):
"""String -> AST
Parse the string and return its AST representation. May raise
a ParseError exception.
"""
added_newline = False
if not code.endswith("\n"):
code += "\n"
added_newline = True
try:
drv = driver.Driver(pygram.python_grammar, pytree.convert)
result = drv.parse_string(code, True)
except ParseError:
log.debug("Had problems parsing:\n%s\n" % quoted_block(code))
raise
# Always return a Node, not a Leaf.
if isinstance(result, Leaf):
result = Node(syms.file_input, [result])
result.added_newline = added_newline
return result
def get_dotted_import_replacement(self,
name_node,
attr_node,
mapping=MAPPING,
renamed=None):
u"""
For (http, client) given and httplib being the correct replacement,
returns (httplib as client, None)
For (test, support) given and test.test_support being the replacement,
returns (test, test_support as support)
"""
full_name = name_node.value + u'.' + attr_node.value
replacement = mapping[full_name]
if u'.' in replacement:
new_name, new_attr = replacement.split(u'.')
if renamed is None:
return Name(new_name, prefix=name_node.prefix), Node(
syms.dotted_as_name, [
Name(new_attr, prefix=attr_node.prefix),
Name(u'as', prefix=u" "),
attr_node.clone()
])
else:
return Name(new_name, prefix=name_node.prefix), Name(
new_attr, prefix=attr_node.prefix)
else:
return Node(syms.dotted_as_name, [
Name(replacement, prefix=name_node.prefix),
Name(u'as', prefix=u' '),
Name(attr_node.value, prefix=attr_node.prefix)
]), None
def transform(self, node, results):
args = []
item_id = 0
while item_id < len(node.children):
if (node.children[item_id].__class__.__name__ == "Leaf"):
if node.children[item_id].value == ':':
#加花括号
args += [
Leaf(token.LBRACE, '{'),
node.children[item_id + 1].clone(),
Leaf(token.RBRACE, '}'),
Leaf(4, '\r\n')
]
item_id += 1
#if，elif处理
elif (node.children[item_id].value
== 'elif') | (node.children[item_id].value == 'if'):
if node.children[item_id].value == 'elif':
leaf_temp = Leaf(1, 'if')
leaf_temp.prefix = " "
args += [Leaf(1, 'else'), leaf_temp]
else:
args += [node.children[item_id].clone()]
args += [Leaf(7, '(')]
args += [node.children[item_id + 1].clone()]
args += [Leaf(8, ')')]
item_id += 1
else:
args += [node.children[item_id].clone()]
else:
print("\nFixerError_if\n")
item_id += 1
new = Node(node.type, args)
new.prefix = node.prefix
return new
def suitify(parent):
"""
Turn the stuff after the first colon in parent's children
into a suite, if it wasn't already
"""
for node in parent.children:
if node.type == syms.suite:
# already in the prefered format, do nothing
return
# One-liners have no suite node, we have to fake one up
for i, node in enumerate(parent.children):
if node.type == token.COLON:
break
else:
raise ValueError(u"No class suite and no ':'!")
# Move everything into a suite node
suite = Node(syms.suite, [
Newline(),
Leaf(token.INDENT,
indentation(node) + indentation_step(node))
])
one_node = parent.children[i + 1]
one_node.remove()
one_node.prefix = u''
suite.append_child(one_node)
parent.append_child(suite)
def parse(code):
"""String -> AST
Parse the string and return its AST representation. May raise
a ParseError exception.
"""
added_newline = False
if not code.endswith("\n"):
code += "\n"
added_newline = True
try:
drv = driver.Driver(pygram.python_grammar, pytree.convert)
result = drv.parse_string(code, True)
except ParseError:
log.debug("Had problems parsing:\n%s\n" % quoted_block(code))
raise
# Always return a Node, not a Leaf.
if isinstance(result, Leaf):
result = Node(syms.file_input, [result])
result.added_newline = added_newline
return result
def ImportAsName(name, as_name, prefix=None):
new_name = Name(name)
new_as = Name(u"as", prefix=u" ")
new_as_name = Name(as_name, prefix=u" ")
new_node = Node(syms.import_as_name, [new_name, new_as, new_as_name])
if prefix is not None:
new_node.prefix = prefix
return new_node
def ImportAsName(name, as_name, prefix=None):
new_name = Name(name)
new_as = Name(u"as", prefix=u" ")
new_as_name = Name(as_name, prefix=u" ")
new_node = Node(syms.import_as_name, [new_name, new_as, new_as_name])
if prefix is not None:
new_node.prefix = prefix
return new_node
def _c_subscript(sub):
return Node(
syms.power,
[
convert_annotation(sub.value),
Node(syms.trailer, [new(_lsqb), convert_annotation(sub.slice), new(_rsqb)]),
],
)
def _CreateCode(indent, package, symbols, comment):
"""
Create code:
from <package> import <symbols> # <comment>
"""
# children: the children nodes for the final from-import statement
children = [
Name('from', prefix=' ' * indent),
Name(package, prefix=' '),
Name('import', prefix=' '),
]
# name_leaf: list of leaf nodes with the symbols to import
name_leafs = []
symbols = sorted(symbols)
for i, i_symbol in enumerate(symbols):
prefix = ' ' if i == 0 else ', '
name_leafs.append(i_symbol.CreateNameNode(prefix))
# nodes_wrap: if true, we need to wrap the import statement
nodes_wrap = False
line_len = 0
line_len += six.moves.reduce(lambda x, y: x + y,
map(len, map(str, children)), 0)
line_len += six.moves.reduce(lambda x, y: x + y,
map(len, map(str, name_leafs)), 0)
if line_len > page_width:
# Add parenthesis around the "from" names
name_leafs[0].prefix = ''
name_leafs.insert(0, Name('(', prefix=' '))
name_leafs.append(Name(')'))
nodes_wrap = True
# Adds the name_leafs to the children list
children += [
Node(pygram.python_symbols.import_as_names, name_leafs)
]
# from_import: the final node for the import statement
from_import = Node(pygram.python_symbols.import_from, children)
# result: a simple-statement node with the import statement and
# EOL.
new_line = Newline()
new_line.prefix = comment
result = Node(
pygram.python_symbols.simple_stmt,
children=[
from_import,
new_line,
],
)
# Wrap nodes if necessary (see nodes_wrap above)
if nodes_wrap:
ImportBlock.TextWrapForNode(result, page_width, indent)
return result
def touch_import_top(package, name_to_import, node):
"""Works like `does_tree_import` but adds an import statement at the
top if it was not imported (but below any __future__ imports).
Calling this multiple times adds them in reverse order.
Based on lib2to3.fixer_util.touch_import()
"""
root = find_root(node)
if does_tree_import(package, name_to_import, root):
return
# Look for __future__ imports and insert below them
found = False
for name in [
'absolute_import', 'division', 'print_function', 'unicode_literals'
]:
if does_tree_import('__future__', name, root):
found = True
break
if found:
# At least one __future__ import. We want to loop until we've seen them
# all.
start, end = None, None
for idx, node in enumerate(root.children):
if check_future_import(node):
start = idx
# Start looping
idx2 = start
while node:
node = node.next_sibling
idx2 += 1
if not check_future_import(node):
end = idx2
break
break
assert start is not None
assert end is not None
insert_pos = end
else:
# No __future__ imports
for idx, node in enumerate(root.children):
if node.type == syms.simple_stmt: # and node.children and node.children[0].type == token.STRING):
break
insert_pos = idx
if package is None:
import_ = Node(syms.import_name, [
Leaf(token.NAME, u"import"),
Leaf(token.NAME, name_to_import, prefix=u" ")
])
else:
import_ = FromImport(package,
[Leaf(token.NAME, name_to_import, prefix=u" ")])
children = [import_, Newline()]
root.insert_child(insert_pos, Node(syms.simple_stmt, children))
def transform(self, node, results):
args = [Leaf(1, 'while')]
args += [Leaf(7, '(')]
args += [n.clone() for n in results["test_content"]]
args += [Leaf(8, ')'),Leaf(token.LBRACE, '{')]
args += [n.clone() for n in results["content"]]
new = Node(node.type,args)
new.prefix = node.prefix
return new
def _c_attribute(attr):
return Node(
syms.power,
[
_convert_annotation(attr.value),
Node(syms.trailer,
[new(_dot), Leaf(token.NAME, attr.attr)]),
],
)
def form_eqs(node1,node2): result = Node(syms.simple_stmt,[\ Node(syms.expr_stmt,[\ node1.clone(),\ Leaf(22, '='),\ node2.clone()]),\ Leaf(4, '\r\n')\ ]) result.changed() return result
def _c_list(l):
contents = [_convert_annotation(elt) for elt in l.elts]
for index in range(len(contents) - 1, 0, -1):
contents[index].prefix = " "
contents.insert(index, new(_comma))
list_literal = [new(_lsqb), new(_rsqb)]
if contents:
list_literal.insert(1, Node(syms.listmaker, contents))
return Node(syms.atom, list_literal)
def transform_arglist_to_keywords(self, arglist_node, alg_object):
"""Takes a node that points to argument list and transforms
it to all keyword=values
@param arglist_node The node that points to the argument list
@param alg_object The algorithm object that corresponds to this list
"""
ordered_props = alg_object.orderedProperties()
# Special case where the arglist has no children
if len(arglist_node.children) == 0:
arglist_node = Node(syms.argument, [Leaf(token.NAME,ordered_props[0]),Leaf(token.EQUAL,"="),
Leaf(arglist_node.type,arglist_node.value)])
return arglist_node
# Quick check: A 3 arg leaf list with an equals at the 2nd element needs nothing doing
if len(arglist_node.children) == 3 and arglist_node.children[1].type == token.EQUAL:
return arglist_node
# Construct our argument list from the children to make sure we separate out whole comma-separated
# sections i.e get embedded lists correct
args = [[]] # Each list will be delimited by a comma
nargs = 0
index = 0
for node in arglist_node.children:
if node.type == token.COMMA:
args.append(node)
args.append([]) # new arg list
index += 2 # include comma
nargs += 1
else:
args[index].append(node)
# Ordered props
prop_index = 0 # List has commas so standard enumerate won't do the trick
arg_nodes = [] # Holds the final node list
for arg_list in args:
if isinstance(arg_list, Leaf): # Must be comma from construction above
arg_nodes.append(arg_list)
else:
first = arg_list[0]
if not (isinstance(first, Node) and first.type == syms.argument):
prop_name = ordered_props[prop_index]
children=[Leaf(token.NAME,prop_name),Leaf(token.EQUAL,"=")]
children.extend(arg_list)
for c in children:
c.parent = None # A new node requires all old parent nodes to be None
arg_nodes.append(Node(syms.argument, children))
else:
for node in arg_list:
arg_nodes.append(node)
# Move to the next property
prop_index += 1
arglist_node.children = arg_nodes
return arglist_node
def transform(self, node, results):
args = [Leaf(1, 'for')]
args += [Leaf(7, '(')]
args += [Leaf(1, 'auto')] #c++11
args += [n.clone() for n in results["in_before"]]
args += [Leaf(token.COLON, ':')]
args += [n.clone() for n in results["in_after"]]
args += [Leaf(8, ')'), Leaf(token.LBRACE, '{')]
args += [n.clone() for n in results["content"]]
new = Node(node.type, args)
new.prefix = node.prefix
return new
def _c_call(call):
contents = [convert_annotation(arg) for arg in call.args]
contents.extend(convert_annotation(kwarg) for kwarg in call.keywords)
for index in range(len(contents) - 1, 0, -1):
contents[index].prefix = " "
contents.insert(index, new(_comma))
call_args = [new(_lpar), new(_rpar)]
if contents:
call_args.insert(1, Node(syms.arglist, contents))
return Node(syms.power,
[convert_annotation(call.func),
Node(syms.trailer, call_args)])
def fix_main(node):
main_list = []
del_list =[]
if(len(node.children)==0):
return node
# 处理文件头多行注释
temp = False
if (node.children[0].type==syms.simple_stmt) \
and (node.children[0].children[0].type==3):
temp = node.children[0].clone()
node.children[0].remove()
for i in node.children:
if(i.type==syms.funcdef)|(i.type==syms.async_funcdef)|(i.type==syms.classdef)|(i.type==syms.decorated):
continue
if len(i.children)!=0:
if(i.children[0].type==syms.import_name)|(i.children[0].type==syms.import_from):
continue
main_list.append(i.clone())
del_list.append(i)
for i in del_list:
i.remove()
if temp:
node.insert_child(0,temp)
args = [
Leaf(1, 'def'),
Leaf(1, 'main',prefix=' '),
Node(syms.parameters, [
Leaf(7, '('),
Leaf(8, ')'),
]),
Leaf(11, ':'),
Leaf(4, '\r\n')
]
args+=main_list
args+=[Node(syms.suite, [
Leaf(5, '\t'),
Node(syms.simple_stmt, [
Node(syms.return_stmt, [
Leaf(1, 'return '),
Leaf(2, '0'),
]),
Leaf(4, '\r\n'),
]),
Leaf(6, '')
])]
main_node = Node(syms.funcdef,args)
node.append_child(main_node)
def transform(self, node, results): args = [] if results['first']: args.append(Node(syms.simple_stmt,[\ Leaf(1, 'TODO_PyObject'), results['name'].clone(), Leaf(1, ';'), Leaf(4, '\r\n'),])) if results['out'][0].type==syms.trailer: args.append(deal_cout(results['out'][0].children[1])) args.append(deal_cin(results['name'])) result = Node(syms.testlist1,args) result.prefix = node.prefix return result
def deal_cout(node):
return Node(syms.simple_stmt,[\
Node(syms.power, [
Leaf(1, 'std'),
Node(syms.trailer, [
Leaf(23, ':'),
Leaf(23, ':'),
Leaf(1, 'cout'),
]),
]),
Leaf(34, '<<'),
node.clone(),
Leaf(1, ';'),
Leaf(4, '\r\n'),])
def future_import2(feature, node):
"""
An alternative to future_import() which might not work ...
"""
root = find_root(node)
if does_tree_import(u"__future__", feature, node):
return
insert_pos = 0
for idx, node in enumerate(root.children):
if node.type == syms.simple_stmt and node.children and \
node.children[0].type == token.STRING:
insert_pos = idx + 1
break
for thing_after in root.children[insert_pos:]:
if thing_after.type == token.NEWLINE:
insert_pos += 1
continue
prefix = thing_after.prefix
thing_after.prefix = u""
break
else:
prefix = u""
import_ = FromImport(u"__future__",
[Leaf(token.NAME, feature, prefix=u" ")])
children = [import_, Newline()]
root.insert_child(insert_pos,
Node(syms.simple_stmt, children, prefix=prefix))
def append_credentials(src,
access_key,
secret_key,
target='CREDENTIALS',
comment='Added by cornac'):
if isinstance(src, str):
if not src.endswith('\n'):
src += '\n'
src = parse_py(src)
for varname, atom in iter_assign(src):
if varname != target:
continue
if len(atom.children) == 2:
# Atom is an empty dict.
dictmaker = Node(syms.dictsetmaker, [])
atom.children.insert(1, dictmaker)
if atom.children[1].type != syms.dictsetmaker:
raise ValueError(f"{target} is not a plain dict.")
append_to_dict(atom, key=access_key, value=secret_key, comment=comment)
break
else:
raise ValueError(f"{target} is not set.")
return src
def _replace_node(node0: Node, node1: Node) -> None:
suite0 = node0.children[-1]
assert node_name(suite0) == "suite"
for i, x in enumerate(suite0.children):
if node_name(
x) == "simple_stmt" and x.children[0].type == token.STRING:
break
has_comment0 = i < (len(suite0.children) - 1)
suite1 = node1.children[-1]
assert node_name(suite1) == "suite"
before_comments1 = []
for j, x in enumerate(suite1.children):
before_comments1.append(x)
if node_name(
x) == "simple_stmt" and x.children[0].type == token.STRING:
break
has_comment1 = j < (len(suite1.children) - 1)
if has_comment1:
if has_comment0:
suite0.children[i] = suite1.children[j]
else:
assert suite0.children[0].type == token.NEWLINE
assert suite0.children[1].type == token.INDENT
suite0.children = before_comments1 + suite0.children[1:]
suite0.parent.changed()
node0.children = [*node1.children[:-1], node0.children[-1]]
node0.parent.changed()
def add_future(node, symbol):
root = fixer_util.find_root(node)
for idx, node in enumerate(root.children):
if node.type == syms.simple_stmt and \
len(node.children) > 0 and node.children[0].type == token.STRING:
# skip over docstring
continue
names = check_future_import(node)
if not names:
# not a future statement; need to insert before this
break
if symbol in names:
# already imported
return
import_ = fixer_util.FromImport('__future__',
[Leaf(token.NAME, symbol, prefix=" ")])
# Place after any comments or whitespace. (copyright, shebang etc.)
import_.prefix = node.prefix
node.prefix = ''
children = [import_, fixer_util.Newline()]
root.insert_child(idx, Node(syms.simple_stmt, children))
def get_annotated_param(node, arg, *, missing_ok=False):
if node.type not in (token.NAME, syms.tname):
raise NotImplementedError(f"unexpected node token: `{node}`")
actual_ann = None
if node.type == syms.tname:
actual_ann = node.children[2]
node = node.children[0]
if not isinstance(node, Leaf) or arg.arg != node.value:
raise ValueError(
f".pyi file expects argument {arg.arg!r} next but argument " +
f"{minimize_whitespace(str(node))!r} found in source")
if arg.annotation is None:
if actual_ann is None:
if missing_ok:
return new(node)
raise ValueError(
f".pyi file is missing annotation for {arg.arg!r} and source "
+ f"doesn't provide it either")
ann = new(actual_ann)
else:
ann = convert_annotation(arg.annotation)
ann.prefix = ' '
if actual_ann is not None and actual_ann != ann:
ann_str = minimize_whitespace(str(ann))
actual_ann_str = minimize_whitespace(str(actual_ann))
raise ValueError(
f"incompatible annotation for {arg.arg!r}. Expected: " +
f"{ann_str!r}, actual: {actual_ann_str!r}")
return Node(syms.tname, [new(node), new(_colon), ann])
def transform(self, node, results):
u"""
Call __builtins__.long() with the value and the base of the value.
This works because 0b10 is int("10", 2), 0o10 is int("10", 8), etc.
"""
val = node.value
base_ = base(val)
if base_ == 8:
assert val.strip().startswith(u"0o") or \
val.strip().startswith(
u"0O"), u"Invalid format for octal literal"
node.changed()
node.value = u"".join((u"0", val[2:]))
elif base_ == 2:
assert val.startswith(u"0") and val[1] in u"bB", \
u"Invalid format for binary literal"
# __builtins__.long
func_name = Node(syms.power,
Attr(Name(u"__builtins__"), Name(u"long")))
# ("...", 2)
func_args = [
String(u"".join((u"\"", val.strip()[2:], u"\""))),
Comma(),
Number(2, prefix=u" ")
]
new_node = Call(func_name, func_args, node.prefix)
return new_node
def fix_not_a_in_b(node: LN, capture: Capture, filename: Filename):
capture["element"].parent = None
capture["collection"].parent = None
new_comparison = Node(
comparison,
[
capture["element"],
Node(comp_op,
[Leaf(1, "not", prefix=" "),
Leaf(1, "in", prefix=" ")]),
capture["collection"],
],
)
new_comparison.parent = node.parent
return new_comparison
def future_import(feature, node):
"""
This seems to work
"""
root = find_root(node)
if does_tree_import(u"__future__", feature, node):
return
for idx, node in enumerate(root.children):
if node.type == syms.simple_stmt and \
len(node.children) > 0 and node.children[0].type == token.STRING:
# skip over docstring
continue
names = check_future_import(node)
if not names:
# not a future statement; need to insert before this
break
if feature in names:
# already imported
return
import_ = FromImport(u'__future__',
[Leaf(token.NAME, feature, prefix=" ")])
children = [import_, Newline()]
root.insert_child(idx, Node(syms.simple_stmt, children))
def transform(self, node, results):
comp_for = results.get("comp_for").clone()
is_dict = bool(results.get("col")) # is it a dict?
n1 = results.get("n1").clone()
if is_dict:
n2 = results.get("n2").clone()
n2.prefix = " "
impl_assign = tup((n1, n2))
else:
impl_assign = n1
our_gencomp = Node(syms.listmaker, [(impl_assign), (comp_for)])
if is_dict:
new_node = Node(syms.power, [Name("dict"), parenthesize(Node(syms.atom, [our_gencomp]))])
else:
new_node = Node(syms.power, [Name("set"), parenthesize(Node(syms.atom, [our_gencomp]))])
new_node.prefix = node.prefix
return new_node
def insert_annotation(self, arg_type):
"""Modifies tree to set string arg_type as our type annotation"""
# maybe the right way to do this is to insert as next child
# in our parent instead? Or could replace self._arg[-1]
# with modified version of itself
assert self.arg_type is None, 'already annotated'
assert not self._wasModified, 'can only set annotation once'
self._wasModified = True
name = self._name_nodes[-1]
assert name.type == token.NAME
typed_name = Node(syms.tname,
[Leaf(token.NAME, self.name),
Leaf(token.COLON, ':'),
clean_clone(arg_type, False)])
typed_name.prefix = name.prefix
name.replace(typed_name)
def suitify(parent):
u"""
Turn the stuff after the first colon in parent's children
into a suite, if it wasn't already
"""
for node in parent.children:
if node.type == syms.suite:
# already in the prefered format, do nothing
return
# One-liners have no suite node, we have to fake one up
for i, node in enumerate(parent.children):
if node.type == token.COLON:
break
else:
raise ValueError(u"No class suite and no ':'!")
# Move everything into a suite node
suite = Node(syms.suite, [Newline(), Leaf(token.INDENT, indentation(node) + indentation_step(node))])
one_node = parent.children[i+1]
one_node.remove()
one_node.prefix = u''
suite.append_child(one_node)
parent.append_child(suite)
def wrap_parens(arg_node: PyNode, checker_fn: callable) -> PyNode or PyLeaf:
"""
If a node that represents an argument to assert_ function should be grouped, return a new node that adds
parentheses around arg_node. Otherwise, return arg_node.
:param arg_node: the arg_node to parenthesize
:return: the arg_node for the parenthesized expression, or the arg_node itself
"""
if isinstance(arg_node, PyNode) and checker_fn(arg_node):
# log.info('adding parens: "{}" ({}), "{}" ({})'.format(first_child, first_child.type, sibling, sibling.type))
# sometimes arg_node has parent, need to remove it before giving to parenthesize() then re-insert:
parent = arg_node.parent
if parent is not None:
pos_parent = arg_node.remove()
new_node = parenthesize(arg_node)
parent.insert_child(pos_parent, new_node)
else:
new_node = parenthesize(arg_node)
new_node.prefix = arg_node.prefix
arg_node.prefix = ''
return new_node
return arg_node
def fix_leaves(self, node_to_split):
parent_depth = find_indentation(node_to_split)
new_indent = "%s%s" % (' ' * 4, parent_depth)
# For now, just indent additional lines by 4 more spaces
child_leaves = []
combined_prefix = ""
prev_leaf = None
for index, leaf in enumerate(node_to_split.leaves()):
if index and leaf.prefix.count('#'):
if not combined_prefix:
combined_prefix = "%s#" % new_indent
combined_prefix += leaf.prefix.split('#')[-1]
# We want to strip all newlines so we can properly insert newlines
# where they should be
if leaf.type != token.NEWLINE:
if leaf.prefix.count('\n') and index:
# If the line contains a newline, we need to strip all
# whitespace since there were leading indent spaces
if (prev_leaf and prev_leaf.type in [token.DOT, token.LPAR]
or leaf.type in [token.RPAR]):
leaf.prefix = ""
else:
leaf.prefix = " "
# Append any trailing inline comments to the combined
# prefix
child_leaves.append(leaf)
prev_leaf = leaf
# Like TextWrapper, but for nodes. We split on MAX_CHARS - 1 since we
# may need to insert a leading parenth. It's not great, but it would be
# hard to do properly.
split_leaves = wrap_leaves(child_leaves, width=MAX_CHARS - 1,
subsequent_indent=new_indent)
new_node = Node(node_to_split.type, [])
# We want to keep track of if we are breaking inside a parenth
open_count = 0
need_parens = False
for line_index, curr_line_nodes in enumerate(split_leaves):
for node_index, curr_line_node in enumerate(curr_line_nodes):
if line_index and not node_index:
# If first node in non-first line, reset prefix since there
# may have been spaces previously
curr_line_node.prefix = new_indent
new_node.append_child(curr_line_node)
if curr_line_node.type in OPENING_TOKENS:
open_count += 1
if curr_line_node.type in CLOSING_TOKENS:
open_count -= 1
if line_index != len(split_leaves) - 1:
# Don't add newline at the end since it it part of the next
# sibling
new_node.append_child(Leaf(token.NEWLINE, '\n'))
# Checks if we ended a line without being surrounded by parens
if open_count <= 0:
need_parens = True
if need_parens:
# Parenthesize the parent if we're not inside parenths, braces,
# brackets, since we inserted newlines between leaves
parenth_before_equals = Leaf(token.EQUAL, "=") in split_leaves[0]
self.parenthesize_parent(new_node, parenth_before_equals)
node_to_split.replace(new_node)
return combined_prefix
