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denoland-deno/op_crates/crypto/lib.rs
2021-02-26 12:06:26 -05:00

48 lines
1.2 KiB
Rust

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
#![deny(warnings)]
use deno_core::error::AnyError;
use deno_core::serde_json::json;
use deno_core::serde_json::Value;
use deno_core::JsRuntime;
use deno_core::OpState;
use deno_core::ZeroCopyBuf;
use rand::rngs::StdRng;
use rand::thread_rng;
use rand::Rng;
use std::path::PathBuf;
pub use rand; // Re-export rand
/// Execute this crates' JS source files.
pub fn init(isolate: &mut JsRuntime) {
let files = vec![(
"deno:op_crates/crypto/01_crypto.js",
include_str!("01_crypto.js"),
)];
for (url, source_code) in files {
isolate.execute(url, source_code).unwrap();
}
}
pub fn op_crypto_get_random_values(
state: &mut OpState,
_args: Value,
zero_copy: &mut [ZeroCopyBuf],
) -> Result<Value, AnyError> {
assert_eq!(zero_copy.len(), 1);
let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
if let Some(seeded_rng) = maybe_seeded_rng {
seeded_rng.fill(&mut *zero_copy[0]);
} else {
let mut rng = thread_rng();
rng.fill(&mut *zero_copy[0]);
}
Ok(json!({}))
}
pub fn get_declaration() -> PathBuf {
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
}