Struct ProgramState 

pub struct ProgramState {
    pub symbol_table: SymbolTableRef,
    pub environment: Option<SymbolTableRef>,
    pub functions: FunctionsRef,
    pub plan: Plan,
    pub kinds: KindTable,
    pub enums: EnumTable,
    pub dictionary: Ref<Dictionary>,
}

Fields

symbol_table: SymbolTableRef

environment: Option<SymbolTableRef>

functions: FunctionsRef

plan: Plan

kinds: KindTable

enums: EnumTable

dictionary: Ref<Dictionary>

Implementations

impl ProgramState

pub fn new() -> ProgramState

pub fn pretty_print(&self) -> String

pub fn get_symbol(&self, id: u64) -> Option<Ref<Value>>

pub fn get_mutable_symbol(&self, id: u64) -> Option<ValRef>

pub fn contains_symbol(&self, id: u64) -> bool

pub fn get_environment(&self) -> Option<SymbolTableRef>

pub fn get_env_symbol(&self, id: u64) -> Option<Ref<Value>>

Look up symbol in environment first, then in global symbol table

pub fn add_plan_step(&self, step: Box<dyn MechFunction>)

pub fn insert_function(&self, fxn: FunctionDescriptor)

pub fn save_symbol( &self, id: u64, name: String, value: Value, mutable: bool, ) -> ValRef

pub fn save_env_symbol( &self, id: u64, name: String, value: Value, mutable: bool, ) -> ValRef

Trait Implementations

impl Clone for ProgramState

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.