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4e1abb4f3a
To better reflect changes in error types in JS from #3662 this PR changes default error type used in ops from "ErrBox" to "OpError". "OpError" is a type that can be sent over to JSON; it has all information needed to construct error in JavaScript. That made "GetErrorKind" trait useless and so it was removed altogether. To provide compatibility with previous use of "ErrBox" an implementation of "From<ErrBox> for OpError" was added, however, it is an escape hatch and ops implementors should strive to use "OpError" directly.
32 lines
804 B
Rust
32 lines
804 B
Rust
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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use super::dispatch_json::{JsonOp, Value};
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use crate::op_error::OpError;
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use crate::ops::json_op;
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use crate::state::State;
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use deno_core::*;
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use rand::thread_rng;
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use rand::Rng;
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pub fn init(i: &mut Isolate, s: &State) {
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i.register_op(
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"get_random_values",
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s.core_op(json_op(s.stateful_op(op_get_random_values))),
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);
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}
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fn op_get_random_values(
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state: &State,
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_args: Value,
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zero_copy: Option<ZeroCopyBuf>,
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) -> Result<JsonOp, OpError> {
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assert!(zero_copy.is_some());
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if let Some(ref mut seeded_rng) = state.borrow_mut().seeded_rng {
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seeded_rng.fill(&mut zero_copy.unwrap()[..]);
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} else {
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let mut rng = thread_rng();
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rng.fill(&mut zero_copy.unwrap()[..]);
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}
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Ok(JsonOp::Sync(json!({})))
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}
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