X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/20d8ccb54253f8a66321f6708d53e2a05a54079b..2704dc796b49b4c5d348c92ba14ef1cfd908e7f1:/src/black/linegen.py?ds=sidebyside diff --git a/src/black/linegen.py b/src/black/linegen.py index ff54e05..a2e41bf 100644 --- a/src/black/linegen.py +++ b/src/black/linegen.py @@ -1,38 +1,67 @@ """ Generating lines of code. """ -from functools import partial, wraps import sys +from functools import partial, wraps from typing import Collection, Iterator, List, Optional, Set, Union, cast -from black.nodes import WHITESPACE, RARROW, STATEMENT, STANDALONE_COMMENT -from black.nodes import ASSIGNMENTS, OPENING_BRACKETS, CLOSING_BRACKETS -from black.nodes import Visitor, syms, is_arith_like, ensure_visible +from black.brackets import COMMA_PRIORITY, DOT_PRIORITY, max_delimiter_priority_in_atom +from black.comments import FMT_OFF, generate_comments, list_comments +from black.lines import ( + Line, + append_leaves, + can_be_split, + can_omit_invisible_parens, + is_line_short_enough, + line_to_string, +) +from black.mode import Feature, Mode, Preview from black.nodes import ( + ASSIGNMENTS, + CLOSING_BRACKETS, + OPENING_BRACKETS, + RARROW, + STANDALONE_COMMENT, + STATEMENT, + WHITESPACE, + Visitor, + ensure_visible, + is_arith_like, + is_atom_with_invisible_parens, is_docstring, is_empty_tuple, - is_one_tuple, + is_lpar_token, + is_multiline_string, + is_name_token, is_one_sequence_between, + is_one_tuple, + is_rpar_token, + is_stub_body, + is_stub_suite, + is_vararg, + is_walrus_assignment, + is_yield, + syms, + wrap_in_parentheses, ) -from black.nodes import is_name_token, is_lpar_token, is_rpar_token -from black.nodes import is_walrus_assignment, is_yield, is_vararg, is_multiline_string -from black.nodes import is_stub_suite, is_stub_body, is_atom_with_invisible_parens -from black.nodes import wrap_in_parentheses -from black.brackets import max_delimiter_priority_in_atom -from black.brackets import DOT_PRIORITY, COMMA_PRIORITY -from black.lines import Line, line_to_string, is_line_short_enough -from black.lines import can_omit_invisible_parens, can_be_split, append_leaves -from black.comments import generate_comments, list_comments, FMT_OFF from black.numerics import normalize_numeric_literal -from black.strings import get_string_prefix, fix_docstring -from black.strings import normalize_string_prefix, normalize_string_quotes -from black.trans import Transformer, CannotTransform, StringMerger, StringSplitter -from black.trans import StringParenWrapper, StringParenStripper, hug_power_op -from black.mode import Mode, Feature, Preview - -from blib2to3.pytree import Node, Leaf +from black.strings import ( + fix_docstring, + get_string_prefix, + normalize_string_prefix, + normalize_string_quotes, +) +from black.trans import ( + CannotTransform, + StringMerger, + StringParenStripper, + StringParenWrapper, + StringSplitter, + Transformer, + hug_power_op, +) from blib2to3.pgen2 import token - +from blib2to3.pytree import Leaf, Node # types LeafID = int @@ -220,7 +249,9 @@ class LineGenerator(Visitor[Line]): for child in children: yield from self.visit(child) - if child.type == token.ASYNC: + if child.type == token.ASYNC or child.type == STANDALONE_COMMENT: + # STANDALONE_COMMENT happens when `# fmt: skip` is applied on the async + # line. break internal_stmt = next(children) @@ -293,7 +324,24 @@ class LineGenerator(Visitor[Line]): if is_docstring(leaf) and "\\\n" not in leaf.value: # We're ignoring docstrings with backslash newline escapes because changing # indentation of those changes the AST representation of the code. - docstring = normalize_string_prefix(leaf.value) + if Preview.normalize_docstring_quotes_and_prefixes_properly in self.mode: + # There was a bug where --skip-string-normalization wouldn't stop us + # from normalizing docstring prefixes. To maintain stability, we can + # only address this buggy behaviour while the preview style is enabled. + if self.mode.string_normalization: + docstring = normalize_string_prefix(leaf.value) + # visit_default() does handle string normalization for us, but + # since this method acts differently depending on quote style (ex. + # see padding logic below), there's a possibility for unstable + # formatting as visit_default() is called *after*. To avoid a + # situation where this function formats a docstring differently on + # the second pass, normalize it early. + docstring = normalize_string_quotes(docstring) + else: + docstring = leaf.value + else: + # ... otherwise, we'll keep the buggy behaviour >.< + docstring = normalize_string_prefix(leaf.value) prefix = get_string_prefix(docstring) docstring = docstring[len(prefix) :] # Remove the prefix quote_char = docstring[0] @@ -330,13 +378,14 @@ class LineGenerator(Visitor[Line]): # We could enforce triple quotes at this point. quote = quote_char * quote_len - if Preview.long_docstring_quotes_on_newline in self.mode: + # It's invalid to put closing single-character quotes on a new line. + if Preview.long_docstring_quotes_on_newline in self.mode and quote_len == 3: # We need to find the length of the last line of the docstring # to find if we can add the closing quotes to the line without # exceeding the maximum line length. # If docstring is one line, then we need to add the length - # of the indent, prefix, and starting quotes. Ending quote are - # handled later + # of the indent, prefix, and starting quotes. Ending quotes are + # handled later. lines = docstring.splitlines() last_line_length = len(lines[-1]) if docstring else 0