Function VariableDeclarator

tools/acorn-optimizer.mjs:327–332

(node, c)

    recursiveWalk(ast, {
      VariableDeclarator(node, c) {
        walkPattern(node.id, c, (name) => {
          ensureData(scopes[scopes.length - 1], name).def = 1;
        });
        if (node.init) c(node.init);
      },
      ObjectExpression(node, c) {
        // ignore the property identifiers
        node.properties.forEach((node) => {