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Rename Arguments::as_const_str to as_statically_known_str

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While `const` has a particular meaning about language guarantees, here
we need a fuzzier notion like whether constant propagation was
effective, and `statically_known` is the best term we have for now.
This commit is contained in:
Josh Stone 2024-03-23 21:49:29 -07:00
parent 2f090c30dd
commit b67ad8f626
1 changed files with 9 additions and 5 deletions
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14
library/core/src/fmt/mod.rs
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@ -201,7 +201,7 @@ trait SpecWriteFmt {
impl<W: Write + ?Sized> SpecWriteFmt for &mut W {
#[inline]
default fn spec_write_fmt(mut self, args: Arguments<'_>) -> Result {
if let Some(s) = args.as_const_str() {
if let Some(s) = args.as_statically_known_str() {
self.write_str(s)
} else {
write(&mut self, args)
@ -212,7 +212,7 @@ impl<W: Write + ?Sized> SpecWriteFmt for &mut W {
impl<W: Write> SpecWriteFmt for &mut W {
#[inline]
fn spec_write_fmt(self, args: Arguments<'_>) -> Result {
if let Some(s) = args.as_const_str() {
if let Some(s) = args.as_statically_known_str() {
self.write_str(s)
} else {
write(self, args)
@ -442,7 +442,7 @@ pub const fn as_str(&self) -> Option<&'static str> {
/// Same as [`Arguments::as_str`], but will only return `Some(s)` if it can be determined at compile time.
#[must_use]
#[inline]
fn as_const_str(&self) -> Option<&'static str> {
fn as_statically_known_str(&self) -> Option<&'static str> {
let s = self.as_str();
if core::intrinsics::is_val_statically_known(s.is_some()) { s } else { None }
}
@ -1617,7 +1617,11 @@ pub fn write_str(&mut self, data: &str) -> Result {
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
pub fn write_fmt(&mut self, fmt: Arguments<'_>) -> Result {
if let Some(s) = fmt.as_const_str() { self.buf.write_str(s) } else { write(self.buf, fmt) }
if let Some(s) = fmt.as_statically_known_str() {
self.buf.write_str(s)
} else {
write(self.buf, fmt)
}
}
/// Flags for formatting
@ -2308,7 +2312,7 @@ fn write_char(&mut self, c: char) -> Result {
#[inline]
fn write_fmt(&mut self, args: Arguments<'_>) -> Result {
if let Some(s) = args.as_const_str() {
if let Some(s) = args.as_statically_known_str() {
self.buf.write_str(s)
} else {
write(self.buf, args)