Struct vrl::stdlib::GetEnvVar

pub struct GetEnvVar;

Trait Implementations

impl Clone for GetEnvVar

fn clone(&self) -> GetEnvVar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for GetEnvVar

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

Formats the value using the given formatter.

impl Function for GetEnvVar

fn identifier(&self) -> &'static str

The identifier by which the function can be called.

fn parameters(&self) -> &'static [Parameter]

An optional list of parameters the function accepts.

fn examples(&self) -> &'static [Example]

One or more examples demonstrating usage of the function in VRL source code.

fn compile( &self, _state: &TypeState, _ctx: &mut FunctionCompileContext, arguments: ArgumentList ) -> Compiled

Compile a Function into a type that can be resolved to an Expression.

fn summary(&self) -> &'static str

A brief single-line description explaining what this function does.

fn usage(&self) -> &'static str

A more elaborate multi-paragraph description on how to use the function.

fn closure(&self) -> Option<Definition>

An optional closure definition for the function.

impl Copy for GetEnvVar