Trait ValueStore

pub trait ValueStore: Debug {
    // Required methods
    fn contains_root(&self, name: &str) -> bool;
    fn roots(&self) -> Vec<&str>;
    fn contains_variable(&self, path: PathRef<'_, '_>) -> bool;
    fn try_get_variable<'a>(
        &'a self,
        path: PathRef<'_, '_>,
    ) -> Option<&'a Value>;
    fn get_variable<'a>(&'a self, path: PathRef<'_, '_>) -> Result<&'a Value>;
}

Immutable view into a template’s global variables.

Required Methods

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

Check if root variable exists.

fn roots(&self) -> Vec<&str>

Enumerate all root variables.

fn contains_variable(&self, path: PathRef<'_, '_>) -> bool

Check if variable exists.

Notes to implementers:

• Don’t forget to reverse-index on negative array indexes
• Don’t forget about arr.first, arr.last.

fn try_get_variable<'a>(&'a self, path: PathRef<'_, '_>) -> Option<&'a Value>

Access a variable.

Notes to implementers:

• Don’t forget to reverse-index on negative array indexes
• Don’t forget about arr.first, arr.last.

fn get_variable<'a>(&'a self, path: PathRef<'_, '_>) -> Result<&'a Value>

Access a variable.

Notes to implementers:

• Don’t forget to reverse-index on negative array indexes
• Don’t forget about arr.first, arr.last.

Implementations on Foreign Types

impl ValueStore for Object

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

fn roots(&self) -> Vec<&str>

fn contains_variable(&self, path: PathRef<'_, '_>) -> bool

fn try_get_variable<'a>(&'a self, path: PathRef<'_, '_>) -> Option<&'a Value>

fn get_variable<'a>(&'a self, path: PathRef<'_, '_>) -> Result<&'a Value>

Implementors