74 lines
1.8 KiB
JavaScript
Vendored
74 lines
1.8 KiB
JavaScript
Vendored
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _helperPluginUtils = require("@babel/helper-plugin-utils");
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var _core = require("@babel/core");
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function getName(key) {
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if (_core.types.isIdentifier(key)) {
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return key.name;
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}
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return key.value.toString();
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}
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var _default = (0, _helperPluginUtils.declare)(api => {
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api.assertVersion(7);
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return {
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name: "transform-duplicate-keys",
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visitor: {
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ObjectExpression(path) {
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const {
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node
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} = path;
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const plainProps = node.properties.filter(prop => !_core.types.isSpreadElement(prop) && !prop.computed);
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const alreadySeenData = Object.create(null);
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const alreadySeenGetters = Object.create(null);
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const alreadySeenSetters = Object.create(null);
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for (const prop of plainProps) {
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const name = getName(prop.key);
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let isDuplicate = false;
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switch (prop.kind) {
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case "get":
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if (alreadySeenData[name] || alreadySeenGetters[name]) {
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isDuplicate = true;
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}
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alreadySeenGetters[name] = true;
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break;
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case "set":
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if (alreadySeenData[name] || alreadySeenSetters[name]) {
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isDuplicate = true;
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}
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alreadySeenSetters[name] = true;
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break;
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default:
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if (alreadySeenData[name] || alreadySeenGetters[name] || alreadySeenSetters[name]) {
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isDuplicate = true;
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}
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alreadySeenData[name] = true;
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}
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if (isDuplicate) {
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prop.computed = true;
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prop.key = _core.types.stringLiteral(name);
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}
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}
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}
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}
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};
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});
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exports.default = _default; |