prettier-plugin-solidity/dist/slang-printers/print-preserving-empty-lines.js

A Prettier Plugin for automatically formatting your Solidity code.

import { NonterminalKind } from '@nomicfoundation/slang/cst';
import { doc, util } from 'prettier';
import { locEnd } from '../slang-utils/loc.js';
const { hardline } = doc.builders;
export function printPreservingEmptyLines(path, print, options) {
    return path.map((childPath) => {
        const node = childPath.getNode();
        return [
            // Only attempt to prepend an empty line if `node` is not the first item
            !childPath.isFirst &&
                // YulLabel adds a dedented line so we don't have to prepend a hardline.
                (node.kind !== NonterminalKind.YulStatement ||
                    node.variant.kind !== NonterminalKind.YulLabel)
                ? hardline
                : '',
            print(childPath),
            // Only attempt to append an empty line if `node` is not the last item
            !childPath.isLast &&
                // Append an empty line if the original text already had an one after the
                // current `node`
                util.isNextLineEmpty(options.originalText, locEnd(node))
                ? hardline
                : ''
        ];
    }, 'items');
}
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