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57 lines
No EOL
1.5 KiB
JavaScript
57 lines
No EOL
1.5 KiB
JavaScript
import { inputToArray, defaultHashLength } from './hash-fn.js';
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/**
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* Base implementation of hashing.
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*/
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export class BaseHash {
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constructor(implementation, alloc, getReader) {
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this.alloc = alloc;
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this.getReader = getReader;
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this.hash = implementation;
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}
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/**
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* @inheritdoc
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*/
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update(data) {
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if (!this.hash) {
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throw new Error('Cannot continue updating hashing after dispose() has been called');
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}
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this.hash.update(inputToArray(data));
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return this;
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}
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/**
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* @inheritdoc
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*/
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digest({ length = defaultHashLength, dispose = true } = {}) {
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if (!this.hash) {
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throw new Error('Cannot call digest() after dipose() has been called');
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}
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const digested = this.alloc(length);
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this.hash.digest(digested);
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if (dispose) {
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this.dispose();
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}
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return digested;
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}
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/**
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* @inheritdoc
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*/
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reader({ dispose = true } = {}) {
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if (!this.hash) {
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throw new Error('Cannot call reader() after dipose() has been called');
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}
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const reader = this.getReader(this.hash.reader());
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if (dispose) {
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this.dispose();
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}
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return reader;
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}
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/**
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* @inheritdoc
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*/
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dispose() {
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var _a;
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(_a = this.hash) === null || _a === void 0 ? void 0 : _a.free();
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this.hash = undefined;
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}
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}
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//# sourceMappingURL=hash-instance.js.map
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