bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-expand/src/name.rs')
-rw-r--r--crates/hir-expand/src/name.rs23
1 files changed, 19 insertions, 4 deletions
diff --git a/crates/hir-expand/src/name.rs b/crates/hir-expand/src/name.rs
index f8dbb84277..7c179c0cf9 100644
--- a/crates/hir-expand/src/name.rs
+++ b/crates/hir-expand/src/name.rs
@@ -24,7 +24,7 @@ enum Repr {
TupleField(usize),
}
-impl<'a> UnescapedName<'a> {
+impl UnescapedName<'_> {
/// Returns the textual representation of this name as a [`SmolStr`]. Prefer using this over
/// [`ToString::to_string`] if possible as this conversion is cheaper in the general case.
pub fn to_smol_str(&self) -> SmolStr {
@@ -40,7 +40,7 @@ impl<'a> UnescapedName<'a> {
}
}
- pub fn display(&'a self, db: &dyn crate::db::ExpandDatabase) -> impl fmt::Display + 'a {
+ pub fn display(&self, db: &dyn crate::db::ExpandDatabase) -> impl fmt::Display + '_ {
_ = db;
UnescapedDisplay { name: self }
}
@@ -96,6 +96,15 @@ impl Name {
Name::new_inline("[missing name]")
}
+ /// Returns true if this is a fake name for things missing in the source code. See
+ /// [`missing()`][Self::missing] for details.
+ ///
+ /// Use this method instead of comparing with `Self::missing()` as missing names
+ /// (ideally should) have a `gensym` semantics.
+ pub fn is_missing(&self) -> bool {
+ self == &Name::missing()
+ }
+
/// Generates a new name which is only equal to itself, by incrementing a counter. Due
/// its implementation, it should not be used in things that salsa considers, like
/// type names or field names, and it should be only used in names of local variables
@@ -162,7 +171,7 @@ struct Display<'a> {
name: &'a Name,
}
-impl<'a> fmt::Display for Display<'a> {
+impl fmt::Display for Display<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match &self.name.0 {
Repr::Text(text) => fmt::Display::fmt(&text, f),
@@ -175,7 +184,7 @@ struct UnescapedDisplay<'a> {
name: &'a UnescapedName<'a>,
}
-impl<'a> fmt::Display for UnescapedDisplay<'a> {
+impl fmt::Display for UnescapedDisplay<'_> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match &self.name.0 .0 {
Repr::Text(text) => {
@@ -282,8 +291,10 @@ pub mod known {
alloc,
iter,
ops,
+ fmt,
future,
result,
+ string,
boxed,
option,
prelude,
@@ -311,6 +322,7 @@ pub mod known {
RangeToInclusive,
RangeTo,
Range,
+ String,
Neg,
Not,
None,
@@ -321,6 +333,7 @@ pub mod known {
iter_mut,
len,
is_empty,
+ as_str,
new,
// Builtin macros
asm,
@@ -334,6 +347,7 @@ pub mod known {
core_panic,
env,
file,
+ format,
format_args_nl,
format_args,
global_asm,
@@ -365,6 +379,7 @@ pub mod known {
cfg_eval,
crate_type,
derive,
+ derive_const,
global_allocator,
no_core,
no_std,