Struct StateMapping 

pub struct StateMapping {
    pub input_mapping: HashMap<String, String>,
    pub output_mapping: HashMap<String, String>,
    pub passthrough: Vec<String>,
    pub merge_all: bool,
    pub output_prefix: Option<String>,
}

State mapping configuration between parent and child graphs

Fields

input_mapping: HashMap<String, String>

Map parent keys to child keys (parent_key -> child_key)

output_mapping: HashMap<String, String>

Map child keys back to parent keys (child_key -> parent_key)

passthrough: Vec<String>

Keys to pass through unchanged (same key in both)

merge_all: bool

Whether to merge all child state back (vs only mapped keys)

output_prefix: Option<String>

Prefix for child keys when merging all

Implementations

impl StateMapping

pub fn new() -> Self

Create a new state mapping

pub fn map_input( self, parent_key: impl Into<String>, child_key: impl Into<String>, ) -> Self

Map a parent key to a child key on input

pub fn map_output( self, child_key: impl Into<String>, parent_key: impl Into<String>, ) -> Self

Map a child key back to a parent key on output

pub fn passthrough(self, key: impl Into<String>) -> Self

Add a passthrough key (same name in parent and child)

pub fn passthrough_keys(self, keys: Vec<String>) -> Self

Add multiple passthrough keys

pub fn merge_all(self) -> Self

Merge all child state back to parent

pub fn with_prefix(self, prefix: impl Into<String>) -> Self

Set prefix for merged keys

pub fn apply_input(&self, parent_state: &GraphState) -> GraphState

Apply input mapping: parent state -> child state

pub fn apply_output( &self, parent_state: &GraphState, child_state: &GraphState, ) -> GraphState

Apply output mapping: child state -> updated parent state

Trait Implementations

impl Clone for StateMapping

fn clone(&self) -> StateMapping

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StateMapping

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

Formats the value using the given formatter.

impl Default for StateMapping

fn default() -> StateMapping

Returns the “default value” for a type.