Enum perplex::grammar::Symbol [−][src]
pub enum Symbol { Terminal(TerminalId), Nonterminal(NonterminalId), }
A symbol of a production.
Variants
Terminal(TerminalId)
A terminal.
Nonterminal(NonterminalId)
A nonterminal.
Methods
impl Symbol
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impl Symbol
pub fn pretty<'a>(
&'a self,
grammar: &'a Grammar
) -> Pretty<&'a Grammar, &'a Self>
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pub fn pretty<'a>(
&'a self,
grammar: &'a Grammar
) -> Pretty<&'a Grammar, &'a Self>
Get a pretty printer for this symbol.
pub fn is_terminal(&self) -> bool
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pub fn is_terminal(&self) -> bool
Check whether this symbol is a terminal.
pub fn is_nonterminal(&self) -> bool
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pub fn is_nonterminal(&self) -> bool
Check whether this symbol is a nonterminal.
Trait Implementations
impl Debug for Symbol
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impl Debug for Symbol
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Clone for Symbol
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impl Clone for Symbol
fn clone(&self) -> Symbol
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fn clone(&self) -> Symbol
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Copy for Symbol
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impl Copy for Symbol
impl PartialEq for Symbol
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impl PartialEq for Symbol
fn eq(&self, other: &Symbol) -> bool
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fn eq(&self, other: &Symbol) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Symbol) -> bool
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fn ne(&self, other: &Symbol) -> bool
This method tests for !=
.
impl Eq for Symbol
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impl Eq for Symbol
impl PartialOrd for Symbol
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impl PartialOrd for Symbol
fn partial_cmp(&self, other: &Symbol) -> Option<Ordering>
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fn partial_cmp(&self, other: &Symbol) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &Symbol) -> bool
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fn lt(&self, other: &Symbol) -> bool
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Symbol) -> bool
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fn le(&self, other: &Symbol) -> bool
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Symbol) -> bool
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fn gt(&self, other: &Symbol) -> bool
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Symbol) -> bool
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fn ge(&self, other: &Symbol) -> bool
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Ord for Symbol
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impl Ord for Symbol
fn cmp(&self, other: &Symbol) -> Ordering
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fn cmp(&self, other: &Symbol) -> Ordering
This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
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fn max(self, other: Self) -> Self
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
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fn min(self, other: Self) -> Self
Compares and returns the minimum of two values. Read more
impl Hash for Symbol
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impl Hash for Symbol
fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash<__H: Hasher>(&self, state: &mut __H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl From<TerminalId> for Symbol
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impl From<TerminalId> for Symbol
fn from(id: TerminalId) -> Symbol
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fn from(id: TerminalId) -> Symbol
Performs the conversion.
impl From<NonterminalId> for Symbol
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impl From<NonterminalId> for Symbol
fn from(id: NonterminalId) -> Symbol
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fn from(id: NonterminalId) -> Symbol
Performs the conversion.