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denoland-deno/cli/ops/runtime.rs
Bartek Iwańczuk 4e1abb4f3a
refactor: use OpError instead of ErrBox for errors in ops (#4058)
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.
2020-02-23 14:51:29 -05:00

68 lines
1.9 KiB
Rust

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
use super::dispatch_json::{JsonOp, Value};
use crate::colors;
use crate::fs as deno_fs;
use crate::op_error::OpError;
use crate::ops::json_op;
use crate::state::State;
use crate::version;
use crate::DenoSubcommand;
use deno_core::*;
use std::env;
/// BUILD_OS and BUILD_ARCH match the values in Deno.build. See js/build.ts.
#[cfg(target_os = "macos")]
static BUILD_OS: &str = "mac";
#[cfg(target_os = "linux")]
static BUILD_OS: &str = "linux";
#[cfg(target_os = "windows")]
static BUILD_OS: &str = "win";
#[cfg(target_arch = "x86_64")]
static BUILD_ARCH: &str = "x64";
pub fn init(i: &mut Isolate, s: &State) {
i.register_op("start", s.core_op(json_op(s.stateful_op(op_start))));
i.register_op("metrics", s.core_op(json_op(s.stateful_op(op_metrics))));
}
fn op_start(
state: &State,
_args: Value,
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let state = state.borrow();
let gs = &state.global_state;
Ok(JsonOp::Sync(json!({
"cwd": deno_fs::normalize_path(&env::current_dir().unwrap()),
"pid": std::process::id(),
"args": gs.flags.argv.clone(),
"repl": gs.flags.subcommand == DenoSubcommand::Repl,
"location": state.main_module.to_string(),
"debugFlag": gs.flags.log_level.map_or(false, |l| l == log::Level::Debug),
"versionFlag": gs.flags.version,
"v8Version": version::v8(),
"denoVersion": version::DENO,
"tsVersion": version::TYPESCRIPT,
"noColor": !colors::use_color(),
"os": BUILD_OS,
"arch": BUILD_ARCH,
})))
}
fn op_metrics(
state: &State,
_args: Value,
_zero_copy: Option<ZeroCopyBuf>,
) -> Result<JsonOp, OpError> {
let state = state.borrow();
let m = &state.metrics;
Ok(JsonOp::Sync(json!({
"opsDispatched": m.ops_dispatched,
"opsCompleted": m.ops_completed,
"bytesSentControl": m.bytes_sent_control,
"bytesSentData": m.bytes_sent_data,
"bytesReceived": m.bytes_received
})))
}