X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/a2821815af5f5a706c673279d6405e286d6e95b8..716fa08090b6a51e4c72dd0a14b6c45f7da4a9d0:/src/black/comments.py diff --git a/src/black/comments.py b/src/black/comments.py index e733dcc..226968b 100644 --- a/src/black/comments.py +++ b/src/black/comments.py @@ -1,13 +1,7 @@ import re -import sys from dataclasses import dataclass from functools import lru_cache -from typing import Iterator, List, Optional, Union - -if sys.version_info >= (3, 8): - from typing import Final -else: - from typing_extensions import Final +from typing import Final, Iterator, List, Optional, Union from black.nodes import ( CLOSING_BRACKETS, @@ -29,7 +23,7 @@ FMT_SKIP: Final = {"# fmt: skip", "# fmt:skip"} FMT_PASS: Final = {*FMT_OFF, *FMT_SKIP} FMT_ON: Final = {"# fmt: on", "# fmt:on", "# yapf: enable"} -COMMENT_EXCEPTIONS = {True: " !:#'", False: " !:#'%"} +COMMENT_EXCEPTIONS = " !:#'" @dataclass @@ -50,7 +44,7 @@ class ProtoComment: consumed: int # how many characters of the original leaf's prefix did we consume -def generate_comments(leaf: LN, *, preview: bool) -> Iterator[Leaf]: +def generate_comments(leaf: LN) -> Iterator[Leaf]: """Clean the prefix of the `leaf` and generate comments from it, if any. Comments in lib2to3 are shoved into the whitespace prefix. This happens @@ -69,16 +63,12 @@ def generate_comments(leaf: LN, *, preview: bool) -> Iterator[Leaf]: Inline comments are emitted as regular token.COMMENT leaves. Standalone are emitted with a fake STANDALONE_COMMENT token identifier. """ - for pc in list_comments( - leaf.prefix, is_endmarker=leaf.type == token.ENDMARKER, preview=preview - ): + for pc in list_comments(leaf.prefix, is_endmarker=leaf.type == token.ENDMARKER): yield Leaf(pc.type, pc.value, prefix="\n" * pc.newlines) @lru_cache(maxsize=4096) -def list_comments( - prefix: str, *, is_endmarker: bool, preview: bool -) -> List[ProtoComment]: +def list_comments(prefix: str, *, is_endmarker: bool) -> List[ProtoComment]: """Return a list of :class:`ProtoComment` objects parsed from the given `prefix`.""" result: List[ProtoComment] = [] if not prefix or "#" not in prefix: @@ -104,7 +94,7 @@ def list_comments( comment_type = token.COMMENT # simple trailing comment else: comment_type = STANDALONE_COMMENT - comment = make_comment(line, preview=preview) + comment = make_comment(line) result.append( ProtoComment( type=comment_type, value=comment, newlines=nlines, consumed=consumed @@ -114,7 +104,7 @@ def list_comments( return result -def make_comment(content: str, *, preview: bool) -> str: +def make_comment(content: str) -> str: """Return a consistently formatted comment from the given `content` string. All comments (except for "##", "#!", "#:", '#'") should have a single @@ -135,26 +125,26 @@ def make_comment(content: str, *, preview: bool) -> str: and not content.lstrip().startswith("type:") ): content = " " + content[1:] # Replace NBSP by a simple space - if content and content[0] not in COMMENT_EXCEPTIONS[preview]: + if content and content[0] not in COMMENT_EXCEPTIONS: content = " " + content return "#" + content -def normalize_fmt_off(node: Node, *, preview: bool) -> None: +def normalize_fmt_off(node: Node) -> None: """Convert content between `# fmt: off`/`# fmt: on` into standalone comments.""" try_again = True while try_again: - try_again = convert_one_fmt_off_pair(node, preview=preview) + try_again = convert_one_fmt_off_pair(node) -def convert_one_fmt_off_pair(node: Node, *, preview: bool) -> bool: +def convert_one_fmt_off_pair(node: Node) -> bool: """Convert content of a single `# fmt: off`/`# fmt: on` into a standalone comment. Returns True if a pair was converted. """ for leaf in node.leaves(): previous_consumed = 0 - for comment in list_comments(leaf.prefix, is_endmarker=False, preview=preview): + for comment in list_comments(leaf.prefix, is_endmarker=False): if comment.value not in FMT_PASS: previous_consumed = comment.consumed continue @@ -169,7 +159,7 @@ def convert_one_fmt_off_pair(node: Node, *, preview: bool) -> bool: if comment.value in FMT_SKIP and prev.type in WHITESPACE: continue - ignored_nodes = list(generate_ignored_nodes(leaf, comment, preview=preview)) + ignored_nodes = list(generate_ignored_nodes(leaf, comment)) if not ignored_nodes: continue @@ -207,6 +197,7 @@ def convert_one_fmt_off_pair(node: Node, *, preview: bool) -> bool: STANDALONE_COMMENT, hidden_value, prefix=standalone_comment_prefix, + fmt_pass_converted_first_leaf=first_leaf_of(first), ), ) return True @@ -214,26 +205,24 @@ def convert_one_fmt_off_pair(node: Node, *, preview: bool) -> bool: return False -def generate_ignored_nodes( - leaf: Leaf, comment: ProtoComment, *, preview: bool -) -> Iterator[LN]: +def generate_ignored_nodes(leaf: Leaf, comment: ProtoComment) -> Iterator[LN]: """Starting from the container of `leaf`, generate all leaves until `# fmt: on`. If comment is skip, returns leaf only. Stops at the end of the block. """ if comment.value in FMT_SKIP: - yield from _generate_ignored_nodes_from_fmt_skip(leaf, comment, preview=preview) + yield from _generate_ignored_nodes_from_fmt_skip(leaf, comment) return container: Optional[LN] = container_of(leaf) while container is not None and container.type != token.ENDMARKER: - if is_fmt_on(container, preview=preview): + if is_fmt_on(container): return # fix for fmt: on in children - if children_contains_fmt_on(container, preview=preview): + if children_contains_fmt_on(container): for index, child in enumerate(container.children): - if isinstance(child, Leaf) and is_fmt_on(child, preview=preview): + if isinstance(child, Leaf) and is_fmt_on(child): if child.type in CLOSING_BRACKETS: # This means `# fmt: on` is placed at a different bracket level # than `# fmt: off`. This is an invalid use, but as a courtesy, @@ -244,14 +233,12 @@ def generate_ignored_nodes( if ( child.type == token.INDENT and index < len(container.children) - 1 - and children_contains_fmt_on( - container.children[index + 1], preview=preview - ) + and children_contains_fmt_on(container.children[index + 1]) ): # This means `# fmt: on` is placed right after an indentation # level, and we shouldn't swallow the previous INDENT token. return - if children_contains_fmt_on(child, preview=preview): + if children_contains_fmt_on(child): return yield child else: @@ -264,14 +251,14 @@ def generate_ignored_nodes( def _generate_ignored_nodes_from_fmt_skip( - leaf: Leaf, comment: ProtoComment, *, preview: bool + leaf: Leaf, comment: ProtoComment ) -> Iterator[LN]: """Generate all leaves that should be ignored by the `# fmt: skip` from `leaf`.""" prev_sibling = leaf.prev_sibling parent = leaf.parent # Need to properly format the leaf prefix to compare it to comment.value, # which is also formatted - comments = list_comments(leaf.prefix, is_endmarker=False, preview=preview) + comments = list_comments(leaf.prefix, is_endmarker=False) if not comments or comment.value != comments[0].value: return if prev_sibling is not None: @@ -305,12 +292,12 @@ def _generate_ignored_nodes_from_fmt_skip( yield from iter(ignored_nodes) -def is_fmt_on(container: LN, preview: bool) -> bool: +def is_fmt_on(container: LN) -> bool: """Determine whether formatting is switched on within a container. Determined by whether the last `# fmt:` comment is `on` or `off`. """ fmt_on = False - for comment in list_comments(container.prefix, is_endmarker=False, preview=preview): + for comment in list_comments(container.prefix, is_endmarker=False): if comment.value in FMT_ON: fmt_on = True elif comment.value in FMT_OFF: @@ -318,11 +305,11 @@ def is_fmt_on(container: LN, preview: bool) -> bool: return fmt_on -def children_contains_fmt_on(container: LN, *, preview: bool) -> bool: +def children_contains_fmt_on(container: LN) -> bool: """Determine if children have formatting switched on.""" for child in container.children: leaf = first_leaf_of(child) - if leaf is not None and is_fmt_on(leaf, preview=preview): + if leaf is not None and is_fmt_on(leaf): return True return False