Enum Expression 

pub enum Expression {
    Reference(Reference),
    Literal(Literal),
    Pipeline {
        source: Box<Expression>,
        stages: Vec<PipeStage>,
    },
}

A parsed expression from ceremony YAML.

Expressions can be:

• Simple references: ${artifact.ksr}
• Pipelines: ${artifact.ksr | sha256 | hex}
• Function calls with arguments: ${concat(a | sha256, b | sha256) | hex}

Variants

Reference(Reference)

A simple reference to a parameter or artifact

Literal(Literal)

A literal value

Pipeline

A pipeline of transformations

Fields

source: Box<Expression>

The starting value (reference or literal)

stages: Vec<PipeStage>

The transformation stages

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.

impl PartialEq for Expression

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Expression