js_value

boa_engine

Macro js_value 

Source 
js_value!() { /* proc-macro */ }
Expand description

Create a JsObject object from a simpler DSL that resembles JSON.

let value = js_object!({
  // Comments are allowed inside. String literals will always be transformed to `JsString`.
  "key": "value",
  // Identifiers will be used as keys, like in JavaScript.
  alsoKey: 1,
  // Expressions surrounded by brackets will be expressed, like in JavaScript.
  // Note that in this case, the unit value is represented by `null`.
  [1 + 2]: (),
}, context);

assert_eq!(
    JsValue::from(value).display().to_string(),
    "{\n    3: null,\n    key: \"value\",\n    alsoKey: 1\n}"
);

The js_value! macro creates a JsValue instance based on a JSON-like DSL.