You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
1.4 KiB
28 lines
1.4 KiB
4 years ago
|
"use strict";
|
||
|
|
|
||
|
|
Object.defineProperty(exports, "__esModule", {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
exports.default = annotateAsPure;
|
||
|
|
|
||
|
|
var t = _interopRequireWildcard(require("@babel/types"));
|
||
|
|
|
||
|
|
function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
|
||
|
|
|
||
|
|
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
|
||
|
|
|
||
|
|
const PURE_ANNOTATION = "#__PURE__";
|
||
|
|
|
||
|
|
const isPureAnnotated = ({
|
||
|
|
leadingComments
|
||
|
|
}) => !!leadingComments && leadingComments.some(comment => /[@#]__PURE__/.test(comment.value));
|
||
|
|
|
||
|
|
function annotateAsPure(pathOrNode) {
|
||
|
|
const node = pathOrNode.node || pathOrNode;
|
||
|
|
|
||
|
|
if (isPureAnnotated(node)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
t.addComment(node, "leading", PURE_ANNOTATION);
|
||
|
|
}
|