Struct AST 

pub struct AST {
    pub version: f32,
    pub globals: RwLock<HashMap<String, String>>,
    pub vars: RwLock<HashMap<String, String>>,
    pub subs: HashMap<String, String>,
    pub person: HashMap<String, String>,
    pub arrays: HashMap<String, Vec<String>>,
    pub topics: HashMap<String, Topic>,
    pub objects: HashMap<String, Object>,
}

Root of the “abstract syntax tree” representing a RiveScript source document and its useful contents.

Fields

version: f32

globals: RwLock<HashMap<String, String>>

vars: RwLock<HashMap<String, String>>

subs: HashMap<String, String>

person: HashMap<String, String>

arrays: HashMap<String, Vec<String>>

topics: HashMap<String, Topic>

objects: HashMap<String, Object>

Implementations

impl AST

pub fn new() -> Self

Initialize a new AST object ready for populating.

pub fn extend(&mut self, other: AST)

Merge the current AST with the contents of the other.

This is used during parsing when e.g. loading a whole directory of files. All parsed files add to the loaded AST for the root RiveScript instance.

pub fn init_topic(&mut self, name: &String)

Initialize the data structure for a new topic, if it wasn’t already there.

pub fn has_begin_block(&self) -> bool

Returns true if a >begin section exists.

pub fn has_topic(&self, name: &str) -> bool

Returns true if the topic exists.

pub fn get_global(&self, name: &str) -> String

Get a global variable. Returns “undefined” if not set.

pub fn set_global(&self, name: &str, value: &str)

Set a global variable.

pub fn get_bot_var(&self, name: &str) -> String

Get a bot variable. Returns “undefined” if not set.

pub fn set_bot_var(&self, name: &str, value: &str)

Set a bot variable.

Trait Implementations

impl Debug for AST

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

Formats the value using the given formatter.