use syntax::codemap::{BytePos, Span, NO_EXPANSION};
use syntax::ptr;
+use comment::filter_normal_code;
use rewrite::RewriteContext;
use shape::Shape;
}
}
+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(context: &RewriteContext, vis: &Visibility) -> Cow<'static, str> {
match vis.node {
}
}
+#[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 {
}
// 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) {
+ if is_valid_str(&filter_normal_code(&s), max_width, shape) {
Some(s)
} else {
None
}
}
+#[inline]
pub fn left_most_sub_expr(e: &ast::Expr) -> &ast::Expr {
match e.node {
ast::ExprKind::Call(ref e, _)
}
}
+#[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))
+}