Struct GraphEngine 

pub struct GraphEngine { /* private fields */ }

The reactive dependency graph engine.

Implementations

impl GraphEngine

pub fn new() -> Self

Create a new empty graph engine.

pub fn add_cell(&mut self, cell: CellInfo) -> CellId

Add a cell to the graph (first pass: collect cells).

pub fn resolve_dependencies(&mut self) -> Result<()>

Resolve dependencies and build edges (second pass).

pub fn topological_order(&self) -> Result<Vec<CellId>>

Get cells in topological order (respecting dependencies).

pub fn invalidated_cells(&self, changed: CellId) -> Vec<CellId>

Get cells that need re-execution when changed is modified.

Returns the changed cell plus all its transitive dependents, in topological order.

pub fn topological_levels(&self, cells: &[CellId]) -> Vec<Vec<CellId>>

Group cells by dependency level for parallel execution.

Cells in the same level have no dependencies on each other and can be executed in parallel.

pub fn get_cell(&self, id: CellId) -> Option<&CellInfo>

Get a cell by ID.

pub fn get_cell_by_name(&self, name: &str) -> Option<&CellInfo>

Get a cell by name.

pub fn cells(&self) -> impl Iterator<Item = &CellInfo>

Get all cells.

pub fn len(&self) -> usize

Get the number of cells.

pub fn is_empty(&self) -> bool

Check if the graph is empty.

pub fn dependencies(&self, id: CellId) -> Vec<CellId>

Get direct dependencies of a cell.

pub fn dependents(&self, id: CellId) -> Vec<CellId>

Get direct dependents of a cell (cells that depend on this one).

pub fn add_definition_cell(&mut self, cell: DefinitionCell) -> CellId

Add a definition cell to the graph.

pub fn get_definition_cell(&self, id: CellId) -> Option<&DefinitionCell>

Get a definition cell by ID.

pub fn get_definition_cell_mut( &mut self, id: CellId, ) -> Option<&mut DefinitionCell>

Get a mutable reference to a definition cell by ID.

pub fn definition_cells(&self) -> impl Iterator<Item = &DefinitionCell>

Get all definition cells.

pub fn remove_definition_cell(&mut self, id: CellId) -> Option<DefinitionCell>

Remove a definition cell by ID.

Trait Implementations

impl Default for GraphEngine

fn default() -> Self

Returns the “default value” for a type.