nushell/crates/nu-command/src/prelude.rs
Leonhard Kipp 6cf8df8685
Move script to nu engine (#3092)
* Move run_script to engine

* Add which dep and feature to engine

* Change unwrap to expect

* Add wasm specification

* Remove which from default, add specification correctly

* Add nu-platform-specifics

* Move is_external_cmd to platform_specifics

* Add is_external_cmd to host and use it instead of nu_platform directly

* Clean up if else logic in is_external_cmd

* Bump nu-platform-specifics version

* Pass context to print_err

* Commit cargo.lock

* Move print functions to own module inside nu-engine

* Hypocratic change to run windows-nightly again

* Add import for Ordering

* Move printing of error to host

* Move platform specific which functionality to basic host

* Allow no use of cmd_name

* Fix windows compile issue
2021-03-12 18:20:54 +13:00

109 lines
2.9 KiB
Rust

#[macro_export]
macro_rules! return_err {
($expr:expr) => {
match $expr {
Err(_) => return,
Ok(expr) => expr,
};
};
}
#[macro_export]
macro_rules! stream {
($($expr:expr),*) => {{
let mut v = VecDeque::new();
$(
v.push_back($expr);
)*
v
}}
}
#[macro_export]
macro_rules! trace_out_stream {
(target: $target:tt, $desc:tt = $expr:expr) => {{
if log::log_enabled!(target: $target, log::Level::Trace) {
use futures::stream::StreamExt;
let objects = $expr.inspect(move |o| {
trace!(
target: $target,
"{} = {}",
$desc,
match o {
Err(err) => format!("{:?}", err),
Ok(value) => value.display(),
}
);
});
nu_stream::OutputStream::new(objects)
} else {
$expr
}
}};
}
pub(crate) use async_trait::async_trait;
pub(crate) use bigdecimal::BigDecimal;
pub(crate) use futures::{Stream, StreamExt};
pub(crate) use indexmap::{indexmap, IndexMap};
pub(crate) use itertools::Itertools;
pub(crate) use nu_data::config;
pub(crate) use nu_data::value;
pub(crate) use nu_engine::EvaluationContext;
pub(crate) use nu_engine::Example;
pub(crate) use nu_engine::Host;
pub(crate) use nu_engine::RawCommandArgs;
pub(crate) use nu_engine::RunnableContext;
pub(crate) use nu_engine::ShellManager;
pub(crate) use nu_engine::{get_full_help, CommandArgs, Scope, WholeStreamCommand};
pub(crate) use nu_parser::ParserScope;
pub(crate) use nu_protocol::{out, row};
pub(crate) use nu_source::{AnchorLocation, PrettyDebug, Span, SpannedItem, Tag, TaggedItem};
pub(crate) use nu_stream::ToInputStream;
pub(crate) use nu_stream::{InputStream, Interruptible, OutputStream};
pub(crate) use nu_value_ext::ValueExt;
pub(crate) use num_bigint::BigInt;
pub(crate) use num_traits::cast::ToPrimitive;
pub(crate) use serde::Deserialize;
pub(crate) use std::collections::VecDeque;
pub(crate) use std::future::Future;
pub(crate) use std::sync::atomic::AtomicBool;
pub(crate) use std::sync::Arc;
#[allow(clippy::wrong_self_convention)]
pub trait FromInputStream {
fn from_input_stream(self) -> OutputStream;
}
impl<T> FromInputStream for T
where
T: Stream<Item = nu_protocol::Value> + Send + 'static,
{
fn from_input_stream(self) -> OutputStream {
OutputStream {
values: self.map(nu_protocol::ReturnSuccess::value).boxed(),
}
}
}
#[allow(clippy::wrong_self_convention)]
pub trait ToOutputStream {
fn to_output_stream(self) -> OutputStream;
}
impl<T, U> ToOutputStream for T
where
T: Stream<Item = U> + Send + 'static,
U: Into<nu_protocol::ReturnValue>,
{
fn to_output_stream(self) -> OutputStream {
OutputStream {
values: self.map(|item| item.into()).boxed(),
}
}
}