tsd/dist/lib/formatter.js

Check TypeScript type definitions

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const eslint_formatter_pretty_1 = __importDefault(require("eslint-formatter-pretty"));
const jest_diff_1 = require("jest-diff");
/**
 * Format the TypeScript diagnostics to a human readable output.
 *
 * @param diagnostics - List of TypeScript diagnostics.
 * @param showDiff - Display difference between expected and received types.
 * @returns Beautiful diagnostics output
 */
exports.default = (diagnostics, showDiff = false) => {
    const fileMap = new Map();
    for (const diagnostic of diagnostics) {
        let entry = fileMap.get(diagnostic.fileName);
        if (!entry) {
            entry = {
                filePath: diagnostic.fileName,
                errorCount: 0,
                warningCount: 0,
                messages: []
            };
            fileMap.set(diagnostic.fileName, entry);
        }
        if (showDiff && diagnostic.diff) {
            let difference = (0, jest_diff_1.diffStringsUnified)(diagnostic.diff.expected, diagnostic.diff.received, { omitAnnotationLines: true });
            if (difference) {
                difference = difference.split('\n').map(line => `  ${line}`).join('\n');
                diagnostic.message = `${diagnostic.message}\n\n${difference}`;
            }
        }
        if (diagnostic.severity === 'error') {
            entry.errorCount++;
        }
        else if (diagnostic.severity === 'warning') {
            entry.warningCount++;
        }
        entry.messages.push(diagnostic);
    }
    return String((0, eslint_formatter_pretty_1.default)([...fileMap.values()]));
};