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// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
use digest::{Digest, DynDigest};use wasm_bindgen::prelude::*;
#[wasm_bindgen]pub struct DenoHash {  inner: Box<dyn DynDigest>,}
#[wasm_bindgen]pub fn create_hash(algorithm: &str) -> Result<DenoHash, JsValue> {  let hash: Option<Box<dyn DynDigest>> = match algorithm {    "md2" => Some(Box::new(md2::Md2::new())),    "md4" => Some(Box::new(md4::Md4::new())),    "md5" => Some(Box::new(md5::Md5::new())),    "ripemd160" => Some(Box::new(ripemd160::Ripemd160::new())),    "ripemd320" => Some(Box::new(ripemd320::Ripemd320::new())),    "sha1" => Some(Box::new(sha1::Sha1::new())),    "sha224" => Some(Box::new(sha2::Sha224::new())),    "sha256" => Some(Box::new(sha2::Sha256::new())),    "sha384" => Some(Box::new(sha2::Sha384::new())),    "sha512" => Some(Box::new(sha2::Sha512::new())),    "sha3-224" => Some(Box::new(sha3::Sha3_224::new())),    "sha3-256" => Some(Box::new(sha3::Sha3_256::new())),    "sha3-384" => Some(Box::new(sha3::Sha3_384::new())),    "sha3-512" => Some(Box::new(sha3::Sha3_512::new())),    "keccak224" => Some(Box::new(sha3::Keccak224::new())),    "keccak256" => Some(Box::new(sha3::Keccak256::new())),    "keccak384" => Some(Box::new(sha3::Keccak384::new())),    "keccak512" => Some(Box::new(sha3::Keccak512::new())),    "blake3" => Some(Box::new(blake3::Hasher::new())),    "tiger" => Some(Box::new(tiger::Tiger::new())),    _ => None,  };
  if let Some(h) = hash {    Ok(DenoHash { inner: h })  } else {    let err_msg = format!("unsupported hash algorithm: {}", algorithm);    Err(JsValue::from_str(&err_msg))  }}
#[wasm_bindgen]pub fn update_hash(hash: &mut DenoHash, data: &[u8]) {  hash.inner.update(data)}
#[wasm_bindgen]pub fn digest_hash(hash: &mut DenoHash) -> Box<[u8]> {  hash.inner.finalize_reset()}