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Contents
/**
* Safari 10.3 had an issue where async arrow function expressions within any class method would throw.
* After an initial fix, any references to the instance via `this` within those methods would also throw.
* This is fixed by converting arrow functions in class methods into equivalent function expressions.
* @see https://bugs.webkit.org/show_bug.cgi?id=166879
*
* @example
* class X{ a(){ async () => {}; } } // throws
* class X{ a(){ async function() {}; } } // works
*
* @example
* class X{ a(){
* async () => this.a; // throws
* } }
* class X{ a(){
* var _this=this;
* async function() { return _this.a }; // works
* } }
*/
const OPTS = {
allowInsertArrow: false,
specCompliant: false,
};
export default ({ types: t }) => ({
name: "transform-async-arrows-in-class",
visitor: {
ArrowFunctionExpression(path) {
if (path.node.async && path.findParent(t.isClassMethod)) {
path.arrowFunctionToExpression(OPTS);
}
},
},
});
Version data entries
35 entries across 34 versions & 7 rubygems