use std::borrow::Cow;
-use syntax::ast::{self, Attribute, CrateSugar, MetaItem, MetaItemKind, NestedMetaItem,
- NestedMetaItemKind, Path, Visibility, VisibilityKind};
+use rustc_target::spec::abi;
+use syntax::ast::{
+ self, Attribute, CrateSugar, MetaItem, MetaItemKind, NestedMetaItem, NestedMetaItemKind, Path,
+ Visibility, VisibilityKind,
+};
use syntax::codemap::{BytePos, Span, NO_EXPANSION};
-use syntax::{abi, ptr};
+use syntax::ptr;
-use config::Color;
use rewrite::RewriteContext;
use shape::Shape;
-// When we get scoped annotations, we should have rustfmt::skip.
-const SKIP_ANNOTATION: &str = "rustfmt_skip";
+pub const DEPR_SKIP_ANNOTATION: &str = "rustfmt_skip";
+pub const SKIP_ANNOTATION: &str = "rustfmt::skip";
+
+pub fn rewrite_ident<'a>(context: &'a RewriteContext, ident: ast::Ident) -> &'a str {
+ context.snippet(ident.span)
+}
// Computes the length of a string's last line, minus offset.
pub fn extra_offset(text: &str, shape: Shape) -> usize {
match text.rfind('\n') {
// 1 for newline character
- Some(idx) => text.len()
- .checked_sub(idx + 1 + shape.used_width())
- .unwrap_or(0),
+ Some(idx) => text.len().saturating_sub(idx + 1 + shape.used_width()),
None => text.len(),
}
}
+pub fn is_same_visibility(a: &Visibility, b: &Visibility) -> bool {
+ match (&a.node, &b.node) {
+ (
+ VisibilityKind::Restricted { path: p, .. },
+ VisibilityKind::Restricted { path: q, .. },
+ ) => format!("{}", p) == format!("{}", q),
+ (VisibilityKind::Public, VisibilityKind::Public)
+ | (VisibilityKind::Inherited, VisibilityKind::Inherited)
+ | (
+ VisibilityKind::Crate(CrateSugar::PubCrate),
+ VisibilityKind::Crate(CrateSugar::PubCrate),
+ )
+ | (
+ VisibilityKind::Crate(CrateSugar::JustCrate),
+ VisibilityKind::Crate(CrateSugar::JustCrate),
+ ) => true,
+ _ => false,
+ }
+}
+
// Uses Cow to avoid allocating in the common cases.
-pub fn format_visibility(vis: &Visibility) -> Cow<'static, str> {
+pub fn format_visibility(context: &RewriteContext, vis: &Visibility) -> Cow<'static, str> {
match vis.node {
VisibilityKind::Public => Cow::from("pub "),
VisibilityKind::Inherited => Cow::from(""),
VisibilityKind::Crate(CrateSugar::JustCrate) => Cow::from("crate "),
VisibilityKind::Restricted { ref path, .. } => {
let Path { ref segments, .. } = **path;
- let mut segments_iter = segments.iter().map(|seg| seg.ident.name.to_string());
+ let mut segments_iter = segments.iter().map(|seg| rewrite_ident(context, seg.ident));
if path.is_global() {
segments_iter
.next()
}
}
+#[inline]
+pub fn format_async(is_async: ast::IsAsync) -> &'static str {
+ match is_async {
+ ast::IsAsync::Async { .. } => "async ",
+ ast::IsAsync::NotAsync => "",
+ }
+}
+
#[inline]
pub fn format_constness(constness: ast::Constness) -> &'static str {
match constness {
filter_attributes(attrs, ast::AttrStyle::Outer)
}
+#[inline]
+pub fn is_single_line(s: &str) -> bool {
+ s.chars().find(|&c| c == '\n').is_none()
+}
+
+#[inline]
+pub fn first_line_contains_single_line_comment(s: &str) -> bool {
+ s.lines().next().map_or(false, |l| l.contains("//"))
+}
+
#[inline]
pub fn last_line_contains_single_line_comment(s: &str) -> bool {
s.lines().last().map_or(false, |l| l.contains("//"))
#[inline]
fn is_skip(meta_item: &MetaItem) -> bool {
match meta_item.node {
- MetaItemKind::Word => meta_item.ident.name == SKIP_ANNOTATION,
+ MetaItemKind::Word => {
+ let path_str = meta_item.ident.to_string();
+ path_str == SKIP_ANNOTATION || path_str == DEPR_SKIP_ANNOTATION
+ }
MetaItemKind::List(ref l) => {
- meta_item.ident.name == "cfg_attr" && l.len() == 2 && is_skip_nested(&l[1])
+ meta_item.name() == "cfg_attr" && l.len() == 2 && is_skip_nested(&l[1])
}
_ => false,
}
// Return true if the given span does not intersect with file lines.
macro_rules! out_of_file_lines_range {
($self:ident, $span:expr) => {
- !$self.config.file_lines().is_all()
- && !$self
- .config
- .file_lines()
- .intersects(&$self.codemap.lookup_line_range($span))
+ !$self.config.file_lines().is_all() && !$self
+ .config
+ .file_lines()
+ .intersects(&$self.codemap.lookup_line_range($span))
};
}
}
// Wraps String in an Option. Returns Some when the string adheres to the
-// Rewrite constraints defined for the Rewrite trait and else otherwise.
+// Rewrite constraints defined for the Rewrite trait and None otherwise.
pub fn wrap_str(s: String, max_width: usize, shape: Shape) -> Option<String> {
if is_valid_str(&s, max_width, shape) {
Some(s)
}
#[inline]
-pub fn paren_overhead(context: &RewriteContext) -> usize {
- if context.config.spaces_within_parens_and_brackets() {
- 4
- } else {
- 2
- }
-}
-
pub fn left_most_sub_expr(e: &ast::Expr) -> &ast::Expr {
match e.node {
ast::ExprKind::Call(ref e, _)
}
}
-// isatty shamelessly adapted from cargo.
-#[cfg(unix)]
-pub fn isatty() -> bool {
- extern crate libc;
-
- unsafe { libc::isatty(libc::STDOUT_FILENO) != 0 }
-}
-#[cfg(windows)]
-pub fn isatty() -> bool {
- extern crate winapi;
-
- unsafe {
- let handle = winapi::um::processenv::GetStdHandle(winapi::um::winbase::STD_OUTPUT_HANDLE);
- let mut out = 0;
- winapi::um::consoleapi::GetConsoleMode(handle, &mut out) != 0
- }
-}
-
-pub fn use_colored_tty(color: Color) -> bool {
- match color {
- Color::Always => true,
- Color::Never => false,
- Color::Auto => isatty(),
- }
-}
-
+#[inline]
pub fn starts_with_newline(s: &str) -> bool {
s.starts_with('\n') || s.starts_with("\r\n")
}
+
+#[inline]
+pub fn first_line_ends_with(s: &str, c: char) -> bool {
+ s.lines().next().map_or(false, |l| l.ends_with(c))
+}
projects / rust.git / blobdiff