Sha256: 189db6f5b330f2019488b63e0c09ec6b63de6d70bb655eae1999d7a30eeaf882
Contents?: true
Size: 1.25 KB
Versions: 34
Compression:
Stored size: 1.25 KB
Contents
/**
* Edge 16 & 17 do not infer function.name from variable assignment.
* All other `function.name` behavior works fine, so we can skip most of @babel/transform-function-name.
* @see https://kangax.github.io/compat-table/es6/#test-function_name_property_variables_(function)
*
* Note: contrary to various Github issues, Edge 16+ *does* correctly infer the name of Arrow Functions.
* The variable declarator name inference issue only affects function expressions, so that's all we fix here.
*
* A Note on Minification: Terser undoes this transform *by default* unless `keep_fnames` is set to true.
* There is by design - if Function.name is critical to your application, you must configure
* your minifier to preserve function names.
*/
export default ({ types: t }) => ({
name: "transform-edge-function-name",
visitor: {
FunctionExpression: {
exit(path) {
if (!path.node.id && t.isIdentifier(path.parent.id)) {
const id = t.cloneNode(path.parent.id);
const binding = path.scope.getBinding(id.name);
// if the binding gets reassigned anywhere, rename it
if (binding?.constantViolations.length) {
path.scope.rename(id.name);
}
path.node.id = id;
}
},
},
},
});
Version data entries
34 entries across 33 versions & 6 rubygems