Enum schema_ast::ast::Expression

pub enum Expression {
    NumericValue(String, Span),
    StringValue(String, Span),
    ConstantValue(String, Span),
    Function(String, ArgumentsList, Span),
    Array(Vec<Expression>, Span),
}

Represents arbitrary, even nested, expressions.

Variants

NumericValue(String, Span)

Any numeric value e.g. floats or ints.

StringValue(String, Span)

Any string value.

ConstantValue(String, Span)

Any literal constant, basically a string which was not inside “…”. This is used for representing builtin enums and boolean constants (true and false).

Function(String, ArgumentsList, Span)

A function call like node with a name and arguments.

Array(Vec<Expression>, Span)

An array of other values.

Implementations

impl Expression

pub fn as_array(&self) -> Option<(&[Expression], Span)>

pub fn as_string_value(&self) -> Option<(&str, Span)>

pub fn as_constant_value(&self) -> Option<(&str, Span)>

pub fn as_function(&self) -> Option<(&str, &ArgumentsList, Span)>

pub fn as_numeric_value(&self) -> Option<(&str, Span)>

pub fn span(&self) -> Span

pub fn is_env_expression(&self) -> bool

pub fn describe_value_type(&self) -> &'static str

Creates a friendly readable representation for a value’s type.

pub fn is_function(&self) -> bool

pub fn is_array(&self) -> bool

pub fn is_string(&self) -> bool

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

Returns a copy 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 Display for Expression

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

Formats the value using the given formatter.