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65 lines
2.0 KiB
65 lines
2.0 KiB
3 years ago
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"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 _pluginSyntaxClassStaticBlock = require("@babel/plugin-syntax-class-static-block");
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var _helperCreateClassFeaturesPlugin = require("@babel/helper-create-class-features-plugin");
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function generateUid(scope, denyList) {
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const name = "";
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let uid;
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let i = 1;
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do {
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uid = scope._generateUid(name, i);
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i++;
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} while (denyList.has(uid));
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return uid;
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}
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var _default = (0, _helperPluginUtils.declare)(({
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types: t,
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template,
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assertVersion
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}) => {
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assertVersion("^7.12.0");
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return {
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name: "proposal-class-static-block",
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inherits: _pluginSyntaxClassStaticBlock.default,
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pre() {
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(0, _helperCreateClassFeaturesPlugin.enableFeature)(this.file, _helperCreateClassFeaturesPlugin.FEATURES.staticBlocks, false);
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},
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visitor: {
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ClassBody(classBody) {
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const {
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scope
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} = classBody;
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const privateNames = new Set();
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const body = classBody.get("body");
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for (const path of body) {
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if (path.isPrivate()) {
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privateNames.add(path.get("key.id").node.name);
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}
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}
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for (const path of body) {
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if (!path.isStaticBlock()) continue;
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const staticBlockPrivateId = generateUid(scope, privateNames);
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privateNames.add(staticBlockPrivateId);
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const staticBlockRef = t.privateName(t.identifier(staticBlockPrivateId));
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let replacement;
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const blockBody = path.node.body;
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if (blockBody.length === 1 && t.isExpressionStatement(blockBody[0])) {
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replacement = blockBody[0].expression;
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} else {
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replacement = template.expression.ast`(() => { ${blockBody} })()`;
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}
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path.replaceWith(t.classPrivateProperty(staticBlockRef, replacement, [], true));
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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;
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//# sourceMappingURL=index.js.map
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