swc/crates/swc_ecma_parser/scripts/tsc/copy-test.ts

#!/usr/bin/env npx ts-node

// Usage: ./scripts/copy-ts-tests.ts  ~/projects/TypeScript


import * as ts from "typescript";
import * as fs from 'fs';
import * as path from 'path';
import { promisify } from 'util';

const targetDir = path.resolve(__dirname, '..', '..', 'tests', 'tsc')

const fileToCheck = process.argv[2];



async function compile(fileNames: string[], options: ts.CompilerOptions): Promise<boolean> {
    options.noEmit = true;
    options.jsx = ts.JsxEmit.Preserve;
    let program = ts.createProgram(fileNames, options);
    let emitResult = program.emit();

    let allDiagnostics = ts
        .getPreEmitDiagnostics(program)
        .concat(emitResult.diagnostics);

    for (const d of allDiagnostics) {
        if (!d.file) continue;
        // Parse failure
        if (1000 <= d.code && d.code < 2000) return false;
        if (10000 <= d.code) return false;
        if (2000 <= d.code && d.code < 3000) continue;

        let { line, character } = d.file.getLineAndCharacterOfPosition(d.start!);
        let message = ts.flattenDiagnosticMessageText(d.messageText, "\n");
        console.log(`${d.code} ${d.file.fileName} (${line + 1},${character + 1}): ${message}`);
    }

    return true;
}



async function check(f: string) {
    const ok = await compile([f], {
        noEmitOnError: true,
        target: ts.ScriptTarget.Latest,
        module: ts.ModuleKind.None
    });

    if (ok) {
        const filename = path.basename(f);
        const target = path.join(targetDir, filename)

        console.log('Creating', f, '->', target)

        // We use rename as resumable copy
        fs.renameSync(f, target)
        // console.log('Created', target)
    }
}


check(fileToCheck)