pub struct Cfg { /* private fields */ }Expand description
The flags and key = "value" pairs a compile treats as true.
Implementations§
Source§impl Cfg
impl Cfg
Sourcepub fn enable_value(&mut self, key: &str, value: &str)
pub fn enable_value(&mut self, key: &str, value: &str)
Turns the pair on, so @cfg(key = "value") holds. A key may carry
several values at once; each one is its own pair.
Sourcepub fn is_enabled(&self, flag: &str) -> bool
pub fn is_enabled(&self, flag: &str) -> bool
Whether @cfg(flag) holds.
Sourcepub fn scope<R>(&self, f: impl FnOnce() -> R) -> R
pub fn scope<R>(&self, f: impl FnOnce() -> R) -> R
Runs f with this configuration active, and returns what it returns.
Anything compiled inside f reads its @cfg attributes against this
configuration, including the files it imports. The previous one is
restored afterwards, including when f unwinds.
Trait Implementations§
impl Eq for Cfg
Source§impl<S: AsRef<str>> FromIterator<S> for Cfg
Each name enables one flag.
impl<S: AsRef<str>> FromIterator<S> for Cfg
Each name enables one flag.
Source§fn from_iter<I: IntoIterator<Item = S>>(iter: I) -> Self
fn from_iter<I: IntoIterator<Item = S>>(iter: I) -> Self
impl StructuralPartialEq for Cfg
Auto Trait Implementations§
impl !Send for Cfg
impl !Sync for Cfg
impl Freeze for Cfg
impl RefUnwindSafe for Cfg
impl Unpin for Cfg
impl UnsafeUnpin for Cfg
impl UnwindSafe for Cfg
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key and return true if they are equal.§impl<T> Paint for Twhere
T: ?Sized,
impl<T> Paint for Twhere
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Returns a styled value derived from self with the foreground set to
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