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- "use strict";
- Object.defineProperty(exports, "__esModule", {
- value: true
- });
- exports.default = void 0;
- var _helperPluginUtils = require("@babel/helper-plugin-utils");
- var _core = require("@babel/core");
- var _default = (0, _helperPluginUtils.declare)(api => {
- api.assertVersion(7);
- const surrogate = /[\ud800-\udfff]/g;
- const unicodeEscape = /(\\+)u\{([0-9a-fA-F]+)\}/g;
- function escape(code) {
- let str = code.toString(16);
- while (str.length < 4) str = "0" + str;
- return "\\u" + str;
- }
- function replacer(match, backslashes, code) {
- if (backslashes.length % 2 === 0) {
- return match;
- }
- const char = String.fromCodePoint(parseInt(code, 16));
- const escaped = backslashes.slice(0, -1) + escape(char.charCodeAt(0));
- return char.length === 1 ? escaped : escaped + escape(char.charCodeAt(1));
- }
- function replaceUnicodeEscapes(str) {
- return str.replace(unicodeEscape, replacer);
- }
- function getUnicodeEscape(str) {
- let match;
- while (match = unicodeEscape.exec(str)) {
- if (match[1].length % 2 === 0) continue;
- unicodeEscape.lastIndex = 0;
- return match[0];
- }
- return null;
- }
- return {
- name: "transform-unicode-escapes",
- manipulateOptions({
- generatorOpts
- }) {
- var _generatorOpts$jsescO, _generatorOpts$jsescO2;
- if (!generatorOpts.jsescOption) {
- generatorOpts.jsescOption = {};
- }
- (_generatorOpts$jsescO2 = (_generatorOpts$jsescO = generatorOpts.jsescOption).minimal) != null ? _generatorOpts$jsescO2 : _generatorOpts$jsescO.minimal = false;
- },
- visitor: {
- Identifier(path) {
- const {
- node,
- key
- } = path;
- const {
- name
- } = node;
- const replaced = name.replace(surrogate, c => {
- return `_u${c.charCodeAt(0).toString(16)}`;
- });
- if (name === replaced) return;
- const str = _core.types.inherits(_core.types.stringLiteral(name), node);
- if (key === "key") {
- path.replaceWith(str);
- return;
- }
- const {
- parentPath,
- scope
- } = path;
- if (parentPath.isMemberExpression({
- property: node
- }) || parentPath.isOptionalMemberExpression({
- property: node
- })) {
- parentPath.node.computed = true;
- path.replaceWith(str);
- return;
- }
- const binding = scope.getBinding(name);
- if (binding) {
- scope.rename(name, scope.generateUid(replaced));
- return;
- }
- throw path.buildCodeFrameError(`Can't reference '${name}' as a bare identifier`);
- },
- "StringLiteral|DirectiveLiteral"(path) {
- const {
- node
- } = path;
- const {
- extra
- } = node;
- if (extra != null && extra.raw) extra.raw = replaceUnicodeEscapes(extra.raw);
- },
- TemplateElement(path) {
- const {
- node,
- parentPath
- } = path;
- const {
- value
- } = node;
- const firstEscape = getUnicodeEscape(value.raw);
- if (!firstEscape) return;
- const grandParent = parentPath.parentPath;
- if (grandParent.isTaggedTemplateExpression()) {
- throw path.buildCodeFrameError(`Can't replace Unicode escape '${firstEscape}' inside tagged template literals. You can enable '@babel/plugin-transform-template-literals' to compile them to classic strings.`);
- }
- value.raw = replaceUnicodeEscapes(value.raw);
- }
- }
- };
- });
- exports.default = _default;
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