Struct EdgePattern 

pub struct EdgePattern {
    pub source_var: String,
    pub target_var: String,
    pub label: Option<String>,
    pub constraints: Vec<EdgePredicate>,
    pub negated: bool,
}

(E_P) — an edge between two vertex variables, with an optional label and per-property constraints. negated == true flips it into a “must not exist” pattern, matched after positive edges resolve.

Fields

source_var: String

target_var: String

label: Option<String>

constraints: Vec<EdgePredicate>

negated: bool

Implementations

impl EdgePattern

pub fn new(source: impl Into<String>, target: impl Into<String>) -> Self

pub fn with_label(self, label: impl Into<String>) -> Self

pub fn with(self, predicate: EdgePredicate) -> Self

pub fn negated(self) -> Self

pub fn satisfies(&self, edge: &Edge) -> bool

Trait Implementations

impl Clone for EdgePattern

fn clone(&self) -> EdgePattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdgePattern

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

Formats the value using the given formatter.