Enum Stmt

pub enum Stmt<A> {
    NodeStmt(NodeStmt<A>),
    EdgeStmt(EdgeStmt<A>),
    AttrStmt(AttrStmt<A>),
    IDEq(String, String),
    Subgraph(Subgraph<A>),
}

A statement of the graph. This corresponds to the stmt non-terminal of the grammar.

Variants

NodeStmt(NodeStmt<A>)

A node statement.

EdgeStmt(EdgeStmt<A>)

An edge statement.

AttrStmt(AttrStmt<A>)

An attribute statement.

IDEq(String, String)

An alias statement.

Subgraph(Subgraph<A>)

A subgraph.

Implementations

impl<'a, A> Stmt<A>

pub fn is_node_stmt(&self) -> bool

Returns true if self is a NodeStmt variant.

pub fn get_node_ref(&self) -> Option<&NodeStmt<A>>

Returns Some(&node) if &self if a &NodeStmt(node), and None otherwise.

pub fn get_node(self) -> Option<NodeStmt<A>>

Returns Some(node) if self if a NodeStmt(node), and None otherwise.

pub fn is_edge_stmt(&self) -> bool

Returns true if self is a EdgeStmt variant.

pub fn get_edge_ref(&self) -> Option<&EdgeStmt<A>>

Returns Some(&edge) if &self if a &EdgeStmt(edge), and None otherwise.

pub fn get_edge(self) -> Option<EdgeStmt<A>>

Returns Some(edge) if self if a EdgeStmt(edge), and None otherwise.

pub fn is_attr_stmt(&self) -> bool

Returns true if self is a AttrStmt variant.

pub fn get_attr_ref(&self) -> Option<&AttrStmt<A>>

Returns Some(&attr) if &self if a &AttrStmt(attr), and None otherwise.

pub fn get_attr(self) -> Option<AttrStmt<A>>

Returns Some(attr) if self if a AttrStmt(attr), and None otherwise.

pub fn is_ideq_stmt(&self) -> bool

Returns true if self is a IDEq variant.

pub fn get_ideq_ref(&self) -> Option<(&str, &str)>

Returns Some((&id1, &id2)) if &self if a &IDEq(id1, id2) and None otherwise.

pub fn is_subgraph(&self) -> bool

Returns true if self is a Subgraph variant.

Trait Implementations

impl<A: Clone> Clone for Stmt<A>

fn clone(&self) -> Stmt<A>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<A: Debug> Debug for Stmt<A>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<A> FromIterator<Stmt<A>> for StmtList<A>

fn from_iter<T>(iter: T) -> Self

where T: IntoIterator<Item = Stmt<A>>,

Creates a value from an iterator.

impl<A: Hash> Hash for Stmt<A>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<A: Ord> Ord for Stmt<A>

fn cmp(&self, other: &Stmt<A>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<A: PartialEq> PartialEq for Stmt<A>

fn eq(&self, other: &Stmt<A>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A: PartialOrd> PartialOrd for Stmt<A>

fn partial_cmp(&self, other: &Stmt<A>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a, A> TryFrom<Pair<'a, Rule>> for Stmt<A>

where AList<A>: TryFrom<Pair<'a, Rule>, Error = ParseError<'a>>,

type Error = ParseError<'a>

The type returned in the event of a conversion error.

fn try_from(p: Pair<'a, Rule>) -> Result<Self, ParseError<'a>>

Performs the conversion.

impl<A: Eq> Eq for Stmt<A>

impl<A> StructuralPartialEq for Stmt<A>