dts-jest/lib/utils/get-node-one-line-text.js

A preprocessor for Jest to snapshot test TypeScript declaration (.d.ts) files

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.get_node_one_line_text = void 0;
var get_node_one_line_text = function (node, source_file, ts) {
    var printer = ts.createPrinter({ removeComments: true }, {
        substituteNode: function (_hint, current_node) {
            return ts.transform(current_node, [escape_newlines_in_template_node])
                .transformed[0];
        },
    });
    return printer
        .printNode(ts.EmitHint.Unspecified, node, source_file)
        .replace(/\s*\n\s*/g, ' ')
        .replace(/;+$/, '');
    function escape_newlines_in_template_node(context) {
        return function (node) {
            if (ts.isNoSubstitutionTemplateLiteral(node) && node.rawText) {
                return context.factory.createNoSubstitutionTemplateLiteral(node.text, escape_newlines(node.rawText));
            }
            if (ts.isTemplateHead(node) && node.rawText) {
                return context.factory.createTemplateHead(node.text, escape_newlines(node.rawText), 
                // @ts-expect-error: internal api
                node.templateFlags);
            }
            if (ts.isTemplateMiddle(node) && node.rawText) {
                return context.factory.createTemplateMiddle(node.text, escape_newlines(node.rawText), 
                // @ts-expect-error: internal api
                node.templateFlags);
            }
            if (ts.isTemplateTail(node) && node.rawText) {
                return context.factory.createTemplateTail(node.text, escape_newlines(node.rawText), 
                // @ts-expect-error: internal api
                node.templateFlags);
            }
            return node;
        };
    }
};
exports.get_node_one_line_text = get_node_one_line_text;
function escape_newlines(raw_text) {
    // hack for TypeScript 3.6+ (ref: https://github.com/microsoft/TypeScript/pull/32844)
    return raw_text.replace(/\n/g, '\\n');
}