Struct dmntk_feel::Scope

pub struct Scope { /* fields omitted */ }

The FEEL scope.

Implementations

impl Scope

pub fn new() -> Self

Creates a new and empty Scope.

pub fn push(&self, ctx: FeelContext)

Pushes a context on the top of the scope stack.

pub fn pop(&self) -> Option<FeelContext>

Takes and returns a context from the top of the stack.

pub fn peek(&self) -> FeelContext

Peeks a to context from the top of the stack. If the stack is empty, the default context is returned.

pub fn flatten_keys(&self) -> HashSet<String>

Returns a vector of flattened keys in all contexts in scope.

pub fn get_entry(&self, name: &Name) -> Option<Value>

Returns a value for an entry specified by name. Entries are searched from the last to the first context (from top to bottom of scope stack).

pub fn search_deep(&self, names: &[Name]) -> Option<Value>

pub fn set_entry(&self, name: &Name, value: Value)

Sets a specified value for entry name in FeelContext placed on the top of the scope stack (last context).

pub fn insert_null(&self, name: Name)

Sets a null value for entry name in FeelContext placed on the top of the scope stack (last context).

Trait Implementations

impl Debug for Scope

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

Formats the value using the given formatter.

impl Default for Scope

fn default() -> Self

Creates a default Scope containing single default FeelContext.

impl Display for Scope

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

Converts this Scope to its textual representation.

impl From<FeelContext> for Scope

fn from(context: FeelContext) -> Self

Creates a Scope from FeelContext.

impl Jsonify for Scope

fn jsonify(&self) -> String

Converts this Scope to its JSON representation.