[−][src]Struct cfg::precedence::PrecedencedRuleBuilder
Precedenced rules are built in series of rule alternatives with equal precedence.
Methods
impl<D> PrecedencedRuleBuilder<D> where
D: RuleContainer,
D::History: AssignPrecedence + Default,
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D: RuleContainer,
D::History: AssignPrecedence + Default,
impl<D, Hs> PrecedencedRuleBuilder<D, Hs> where
D: RuleContainer,
D::History: AssignPrecedence + Default,
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D: RuleContainer,
D::History: AssignPrecedence + Default,
pub fn default_history<Hs2>(self, state: Hs2) -> PrecedencedRuleBuilder<D, Hs2>
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Sets the default history source.
pub fn precedenced_rule(self, lhs: Symbol) -> PrecedencedRuleBuilder<D, Hs>
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Starts building a new precedenced rule. The differences in precedence among rules only matter within a particular precedenced rule.
pub fn rule(self, lhs: Symbol) -> RuleBuilder<D, Hs>
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Starts building a new grammar rule.
pub fn history(self, history: D::History) -> Self
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Assigns the rule history, which is used on the next call to rhs
, unless overwritten by
a call to rhs_with_history
.
pub fn rhs<S>(self, syms: S) -> Self where
S: AsRef<[Symbol]>,
Hs: HistorySource<D::History>,
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S: AsRef<[Symbol]>,
Hs: HistorySource<D::History>,
Creates a rule alternative. If history wasn't provided, the rule has the Default
history.
pub fn rhs_with_history<S>(self, syms: S, history: D::History) -> Self where
S: AsRef<[Symbol]>,
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S: AsRef<[Symbol]>,
Creates a rule alternative with the given RHS and history.
pub fn associativity(self, assoc: Associativity) -> Self where
D::History: AssignPrecedence,
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D::History: AssignPrecedence,
Assigns the associativity, which influences the next call to rhs
or rhs_with_history
.
pub fn lower_precedence(self) -> Self
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Assigns lower precedence to rule alternatives that are built after this call.
Trait Implementations
impl<D, Hs> Drop for PrecedencedRuleBuilder<D, Hs> where
D: RuleContainer,
D::History: AssignPrecedence + Default,
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D: RuleContainer,
D::History: AssignPrecedence + Default,
Auto Trait Implementations
impl<D, Hs> Send for PrecedencedRuleBuilder<D, Hs> where
D: Send,
Hs: Send,
<D as RuleContainer>::History: Send,
D: Send,
Hs: Send,
<D as RuleContainer>::History: Send,
impl<D, Hs> Sync for PrecedencedRuleBuilder<D, Hs> where
D: Sync,
Hs: Sync,
<D as RuleContainer>::History: Sync,
D: Sync,
Hs: Sync,
<D as RuleContainer>::History: Sync,
impl<D, Hs> Unpin for PrecedencedRuleBuilder<D, Hs> where
D: Unpin,
Hs: Unpin,
<D as RuleContainer>::History: Unpin,
D: Unpin,
Hs: Unpin,
<D as RuleContainer>::History: Unpin,
impl<D, Hs> UnwindSafe for PrecedencedRuleBuilder<D, Hs> where
D: UnwindSafe,
Hs: UnwindSafe,
<D as RuleContainer>::History: UnwindSafe,
D: UnwindSafe,
Hs: UnwindSafe,
<D as RuleContainer>::History: UnwindSafe,
impl<D, Hs> RefUnwindSafe for PrecedencedRuleBuilder<D, Hs> where
D: RefUnwindSafe,
Hs: RefUnwindSafe,
<D as RuleContainer>::History: RefUnwindSafe,
D: RefUnwindSafe,
Hs: RefUnwindSafe,
<D as RuleContainer>::History: RefUnwindSafe,
Blanket Implementations
impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for 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.
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>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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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,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,