43 lines
1.4 KiB
JavaScript
43 lines
1.4 KiB
JavaScript
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function number(n) {
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if (!Number.isSafeInteger(n) || n < 0)
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throw new Error(`positive integer expected, not ${n}`);
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}
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function bool(b) {
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if (typeof b !== 'boolean')
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throw new Error(`boolean expected, not ${b}`);
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}
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// copied from utils
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export function isBytes(a) {
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return (a instanceof Uint8Array ||
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(a != null && typeof a === 'object' && a.constructor.name === 'Uint8Array'));
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}
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function bytes(b, ...lengths) {
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if (!isBytes(b))
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throw new Error('Uint8Array expected');
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if (lengths.length > 0 && !lengths.includes(b.length))
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throw new Error(`Uint8Array expected of length ${lengths}, not of length=${b.length}`);
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}
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function hash(h) {
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if (typeof h !== 'function' || typeof h.create !== 'function')
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throw new Error('Hash should be wrapped by utils.wrapConstructor');
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number(h.outputLen);
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number(h.blockLen);
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}
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function exists(instance, checkFinished = true) {
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if (instance.destroyed)
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throw new Error('Hash instance has been destroyed');
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if (checkFinished && instance.finished)
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throw new Error('Hash#digest() has already been called');
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}
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function output(out, instance) {
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bytes(out);
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const min = instance.outputLen;
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if (out.length < min) {
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throw new Error(`digestInto() expects output buffer of length at least ${min}`);
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}
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}
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export { number, bool, bytes, hash, exists, output };
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const assert = { number, bool, bytes, hash, exists, output };
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export default assert;
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//# sourceMappingURL=_assert.js.map
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