borders/node_modules/@babel/types/lib/modifications/typescript/removeTypeDuplicates.js

54 lines
1.0 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = removeTypeDuplicates;
var _generated = require("../../validators/generated");
function removeTypeDuplicates(nodes) {
const generics = {};
const bases = {};
const typeGroups = new Set();
const types = [];
for (let i = 0; i < nodes.length; i++) {
const node = nodes[i];
if (!node) continue;
if (types.indexOf(node) >= 0) {
continue;
}
if ((0, _generated.isTSAnyKeyword)(node)) {
return [node];
}
if ((0, _generated.isTSBaseType)(node)) {
bases[node.type] = node;
continue;
}
if ((0, _generated.isTSUnionType)(node)) {
if (!typeGroups.has(node.types)) {
nodes.push(...node.types);
typeGroups.add(node.types);
}
continue;
}
types.push(node);
}
for (const type of Object.keys(bases)) {
types.push(bases[type]);
}
for (const name of Object.keys(generics)) {
types.push(generics[name]);
}
return types;
}