Struct GraphContext 

pub struct GraphContext {
    pub state: HashMap<String, Value>,
}

Shared state flowing through a graph. Nodes read and write entries.

Fields

state: HashMap<String, Value>

Key-value state shared across all nodes.

Implementations

impl GraphContext

pub fn new() -> Self

Creates an empty context.

pub fn set(&mut self, key: impl Into<String>, value: Value)

Sets a state entry.

pub fn get(&self, key: &str) -> Option<&Value>

Gets a state entry.

pub fn get_str(&self, key: &str) -> Option<&str>

Gets a state entry as a string.

pub fn with_input(self, input: impl Into<String>) -> Self

Convenience: set the “input” key.

Trait Implementations

impl Clone for GraphContext

fn clone(&self) -> GraphContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GraphContext

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

Formats the value using the given formatter.

impl Default for GraphContext

fn default() -> GraphContext

Returns the “default value” for a type.