GoScrobble/web/node_modules/@babel/preset-env/lib/polyfills/utils.js

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2022-04-25 02:47:15 +00:00
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getImportSource = getImportSource;
exports.getRequireSource = getRequireSource;
exports.isPolyfillSource = isPolyfillSource;
var t = require("@babel/types");
function getImportSource({
node
}) {
if (node.specifiers.length === 0) return node.source.value;
}
function getRequireSource({
node
}) {
if (!t.isExpressionStatement(node)) return;
const {
expression
} = node;
if (t.isCallExpression(expression) && t.isIdentifier(expression.callee) && expression.callee.name === "require" && expression.arguments.length === 1 && t.isStringLiteral(expression.arguments[0])) {
return expression.arguments[0].value;
}
}
function isPolyfillSource(source) {
return source === "@babel/polyfill" || source === "core-js";
}