Closure Compiler: renaming of variable and its properties

Question

I am using closure compiler for my project.

One of my project files has an declaration like :

var data = window.somedata || {};

The file returns this object which is being used by other files. Closure compiler renames all the properties of this data object (in advanced mode) when it is used.

How to tell the compiler not to rename any property related to this variable?

https://developers.google.com/closure/compiler/docs/api-tutorial3#externs — Sirko, Oct 02 '17 at 12:18

score 0 · Accepted Answer · answered Oct 02 '17 at 14:44

0

You can prevent renaming by either using quotes for every property access:

console.log(data['myprop'])

Or by using externs. Externs are separate files that define types.

extern

/** @typedef {{prop1: string, prop2: boolean}} */
var FileObj;

source

var data = window.somedata || /** @type {FileObj} */ ({});

More about writing externs

answered Oct 02 '17 at 14:44

Chad Killingsworth

14,360
2
34
57

Is it possible to restrict closure compiler from renaming the properties of the FileObj by just mentioning the object and not all its properties and sub-properties explicitly? – Ghanshyam Yadav Oct 03 '17 at 08:10
No - you must specify every property as external to block renaming. – Chad Killingsworth Oct 03 '17 at 11:07

Closure Compiler: renaming of variable and its properties

1 Answers1