Struct ra_ap_cfg::CfgOptions [−][src]
Configuration options used for conditional compilition on items with cfg
attributes.
We have two kind of options in different namespaces: atomic options like unix
, and
key-value options like target_arch="x86"
.
Note that for key-value options, one key can have multiple values (but not none).
feature
is an example. We have both feature="foo"
and feature="bar"
if features
foo
and bar
are both enabled. And here, we store key-value options as a set of tuple
of key and value in key_values
.
See: https://doc.rust-lang.org/reference/conditional-compilation.html#set-configuration-options
Implementations
impl CfgOptions
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pub fn check(&self, cfg: &CfgExpr) -> Option<bool>
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pub fn insert_atom(&mut self, key: SmolStr)
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pub fn insert_key_value(&mut self, key: SmolStr, value: SmolStr)
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pub fn apply_diff(&mut self, diff: CfgDiff)
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Trait Implementations
impl Clone for CfgOptions
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fn clone(&self) -> CfgOptions
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pub fn clone_from(&mut self, source: &Self)
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impl Debug for CfgOptions
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impl Default for CfgOptions
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fn default() -> CfgOptions
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impl Eq for CfgOptions
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impl PartialEq<CfgOptions> for CfgOptions
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fn eq(&self, other: &CfgOptions) -> bool
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fn ne(&self, other: &CfgOptions) -> bool
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impl StructuralEq for CfgOptions
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impl StructuralPartialEq for CfgOptions
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Auto Trait Implementations
impl RefUnwindSafe for CfgOptions
impl Send for CfgOptions
impl Sync for CfgOptions
impl Unpin for CfgOptions
impl UnwindSafe for CfgOptions
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,