marko-widgets/dist/components/assign/migrate.mjs

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

// packages/marko-widgets/src/components/assign/migrate.ts
import { types as t } from "@marko/compiler";
import {
  diagnosticDeprecate,
  diagnosticError,
  getEnd,
  getStart,
  parseExpression
} from "@marko/babel-utils";
var migrate_default = {
  exit(tag) {
    if (!tag.node.attributes.length) {
      diagnosticError(tag, {
        label: "The <assign> tag requires a value.",
        fix() {
          tag.remove();
        }
      });
      return;
    }
    diagnosticDeprecate(tag, {
      label: 'The "<assign>" 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 { file } = tag.hub;
        const statements = [];
        let condition;
        for (const attr of tag.get("attributes")) {
          const { node } = attr;
          if (t.isMarkoSpreadAttribute(node)) {
            diagnosticError(attr, {
              label: "Spread attributes are not supported in <assign> tags.",
              fix() {
                attr.remove();
              }
            });
            continue;
          }
          const { name, value } = node;
          if (name === "if" && ((_a = node.arguments) == null ? void 0 : _a.length)) {
            condition = node.arguments.length === 1 ? node.arguments[0] : t.sequenceExpression(node.arguments);
            continue;
          }
          const nodeStart = getStart(file, node);
          const nodeEnd = getEnd(file, node);
          statements.push(
            t.expressionStatement(
              t.isBooleanLiteral(value) && value.value === true && /^[+-]{2,}|[+-]{2,}$/.test(name) ? nodeStart != null && nodeEnd != null ? parseExpression(file, name, nodeStart, nodeEnd) : parseExpression(file, name) : t.assignmentExpression("=", t.identifier(name), value)
            )
          );
        }
        if (condition) {
          tag.replaceWith(
            t.markoScriptlet([
              t.ifStatement(condition, t.blockStatement(statements))
            ])
          );
        } else {
          tag.replaceWithMultiple(
            statements.map((it) => t.markoScriptlet([it]))
          );
        }
      }
    });
  }
};
export {
  migrate_default as default
};