Struct Expression 

pub struct Expression<'a> { /* private fields */ }

A compiled JMESPath expression.

The compiled expression can be used multiple times without incurring the cost of re-parsing the expression each time.

Implementations

impl<'a> Expression<'a>

pub fn new<S>(expression: S, ast: Ast, runtime: &'a Runtime) -> Expression<'a>

where S: Into<String>,

Creates a new JMESPath expression.

pub fn search(&self, data: &Value) -> Result<Value, JmespathError>

Searches data with the compiled expression.

Takes a &Value and returns a Value directly – no conversion needed.

pub fn as_str(&self) -> &str

Returns the JMESPath expression string.

pub fn as_ast(&self) -> &Ast

Returns the AST of the parsed JMESPath expression.

Trait Implementations

impl<'a> Clone for Expression<'a>

fn clone(&self) -> Expression<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Expression<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Expression<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq for Expression<'a>

fn eq(&self, other: &Expression<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.