@stringsync/vexml/dist/esm/util/assert.js

MusicXML to Vexflow

export function assertNotNull(value, msg) {
    if (value === null) {
        throw new Error(msg ?? `expected value to be present, got: ${value}`);
    }
}
export function assertNull(value, msg) {
    if (value !== null) {
        throw new Error(msg ?? `expected value to be null, got: ${value}`);
    }
}
export function assertDefined(value, msg) {
    if (typeof value === 'undefined') {
        throw new Error(msg ?? `expected value to be defined, got: ${value}`);
    }
}
export function assert(condition, msg) {
    if (!condition) {
        throw new Error(msg ?? 'assertion failed');
    }
}
export function assertUnreachable() {
    throw new Error('expected to be unreachable');
}