Function assertDiagnosticLocation

test/fixtures/snapshot/typescript.js:15290–15297

(file, start, length)

    }
    ts.createDiagnosticForNodeFromMessageChain = createDiagnosticForNodeFromMessageChain;
    function assertDiagnosticLocation(file, start, length) {
        ts.Debug.assertGreaterThanOrEqual(start, 0);
        ts.Debug.assertGreaterThanOrEqual(length, 0);
        if (file) {
            ts.Debug.assertLessThanOrEqual(start, file.text.length);
            ts.Debug.assertLessThanOrEqual(start + length, file.text.length);
        }
    }
    function createFileDiagnosticFromMessageChain(file, start, length, messageChain, relatedInformation) {
        assertDiagnosticLocation(file, start, length);
        return {