third_party/rust/jexl-eval/src

Name	Description	Size	Coverage
error.rs		1478	-
lib.rs	A JEXL evaluator written in Rust This crate depends on a JEXL parser crate that handles all the parsing and is a part of the same workspace. JEXL is an expression language used by Mozilla, you can find more information here: https://github.com/mozilla/mozjexl # How to use The access point for this crate is the `eval` functions of the Evaluator Struct You can use the `eval` function directly to evaluate standalone statements For example: ```rust use jexl_eval::Evaluator; use serde_json::json as value; let evaluator = Evaluator::new(); assert_eq!(evaluator.eval("'Hello ' + 'World'").unwrap(), value!("Hello World")); ``` You can also run the statements against a context using the `eval_in_context` function The context can be any type that implements the `serde::Serializable` trait and the function will return errors if the statement doesn't match the context For example: ```rust use jexl_eval::Evaluator; use serde_json::json as value; let context = value!({"a": {"b": 2.0}}); let evaluator = Evaluator::new(); assert_eq!(evaluator.eval_in_context("a.b", context).unwrap(), value!(2.0)); ```	31677	91 %