Struct ProgramState 

pub struct ProgramState {
    pub symbol_table: Ref<SymbolTable>,
    pub environment: Option<Ref<SymbolTable>>,
    pub functions: Ref<Functions>,
    pub plan: Plan,
    pub kinds: HashMap<u64, ValueKind>,
    pub enums: HashMap<u64, MechEnum>,
    pub dictionary: Ref<HashMap<u64, String>>,
}

Fields

symbol_table: Ref<SymbolTable>

environment: Option<Ref<SymbolTable>>

functions: Ref<Functions>

plan: Plan

kinds: HashMap<u64, ValueKind>

enums: HashMap<u64, MechEnum>

dictionary: Ref<HashMap<u64, String>>

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<Ref<Value>>

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

pub fn get_environment(&self) -> Option<Ref<SymbolTable>>

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, ) -> Ref<Value>

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

Trait Implementations

impl Clone for ProgramState

fn clone(&self) -> ProgramState

Returns a duplicate of the value.

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

Performs copy-assignment from source.