marko-widgets/dist/components/var/migrate.js

<h1 align="center"> <!-- Logo --> <br/> marko-widgets@8 <br/>

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var migrate_exports = {};
__export(migrate_exports, {
  default: () => migrate_default
});
module.exports = __toCommonJS(migrate_exports);
var import_compiler = require("@marko/compiler");
var import_babel_utils = require("@marko/babel-utils");
var import_compat_utils = require("@marko/compat-utils");
var migrate_default = {
  exit(tag) {
    if (!tag.node.attributes.length) {
      (0, import_babel_utils.diagnosticError)(tag, {
        label: "The <var> tag requires a value.",
        fix() {
          tag.remove();
        }
      });
      return;
    }
    (0, import_babel_utils.diagnosticDeprecate)(tag, {
      label: 'The "<var>" tag is deprecated. Please use "$ <js_code>" for JavaScript in the template. See: https://github.com/marko-js/marko/wiki/Deprecation:-var,-assign,-invoke-tags',
      fix() {
        var _a;
        const statements = [];
        let condition;
        for (const attr of tag.get("attributes")) {
          const { node } = attr;
          if (import_compiler.types.isMarkoSpreadAttribute(node)) {
            (0, import_babel_utils.diagnosticError)(attr, {
              label: "Spread attributes are not supported in <var> tags.",
              fix() {
                attr.remove();
              }
            });
            continue;
          }
          if (node.name === "if" && ((_a = node.arguments) == null ? void 0 : _a.length)) {
            condition = node.arguments.length === 1 ? node.arguments[0] : import_compiler.types.sequenceExpression(node.arguments);
            continue;
          }
          statements.push(
            import_compiler.types.variableDeclaration("var", [
              import_compiler.types.variableDeclarator(
                import_compiler.types.identifier(node.name),
                (0, import_compat_utils.isSourceBooleanAttribute)(node) ? null : node.value
              )
            ])
          );
        }
        if (condition) {
          if (tag.node.body.body.length) {
            tag.replaceWith(
              import_compiler.types.markoTag(
                import_compiler.types.stringLiteral("if"),
                [],
                import_compiler.types.markoTagBody(
                  statements.map(
                    (it) => import_compiler.types.markoScriptlet([it])
                  ).concat(tag.node.body.body)
                ),
                [condition]
              )
            );
          } else {
            tag.replaceWith(
              import_compiler.types.markoScriptlet([
                import_compiler.types.ifStatement(condition, import_compiler.types.blockStatement(statements))
              ])
            );
          }
        } else {
          let body = statements.map(
            (it) => import_compiler.types.markoScriptlet([it])
          );
          if (tag.node.body.body.length) {
            body = body.concat(tag.node.body.body);
          }
          tag.replaceWithMultiple(body);
        }
      }
    });
  }
};