devsite/node_modules/sucrase/dist/esm/NameManager.js
2024-07-07 18:49:38 -07:00

28 lines
642 B
JavaScript

import getIdentifierNames from "./util/getIdentifierNames";
export default class NameManager {
__init() {this.usedNames = new Set()}
constructor(code, tokens) {;NameManager.prototype.__init.call(this);
this.usedNames = new Set(getIdentifierNames(code, tokens));
}
claimFreeName(name) {
const newName = this.findFreeName(name);
this.usedNames.add(newName);
return newName;
}
findFreeName(name) {
if (!this.usedNames.has(name)) {
return name;
}
let suffixNum = 2;
while (this.usedNames.has(name + String(suffixNum))) {
suffixNum++;
}
return name + String(suffixNum);
}
}