forked from extern/nushell
9068093081
# Description
This PR does a few things to help improve type hovers and, in the
process, fixes a few outstanding issues in the type system. Here's a
list of the changes:
* `for` now will try to infer the type of the iteration variable based
on the expression it's given. This fixes things like `for x in [1, 2, 3]
{ }` where `x` now properly gets the int type.
* Removed old input/output type fields from the signature, focuses on
the vec of signatures. Updated a bunch of dataframe commands that hadn't
moved over. This helps tie things together a bit better
* Fixed inference of types from subexpressions to use the last
expression in the block
* Fixed handling of explicit types in `let` and `mut` calls, so we now
respect that as the authoritative type
I also tried to add `def` input/output type inference, but unfortunately
we only know the predecl types universally, which means we won't have
enough information to properly know what the types of the custom
commands are.
# User-Facing Changes
Script typechecking will get tighter in some cases
Hovers should be more accurate in some cases that previously resorted to
any.
# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.
Make sure you've run and fixed any issues with these commands:
- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect -A clippy::result_large_err` to check that
you're using the standard code style
- `cargo test --workspace` to check that all tests pass
- `cargo run -- crates/nu-std/tests/run.nu` to run the tests for the
standard library
> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->
# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
-->
---------
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
1977 lines
60 KiB
Rust
1977 lines
60 KiB
Rust
use nu_parser::*;
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use nu_protocol::ast::{Argument, Call, PathMember};
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use nu_protocol::Span;
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use nu_protocol::{
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ast::{Expr, Expression, PipelineElement},
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engine::{Command, EngineState, Stack, StateWorkingSet},
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ParseError, PipelineData, ShellError, Signature, SyntaxShape,
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};
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use rstest::rstest;
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#[cfg(test)]
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#[derive(Clone)]
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pub struct Let;
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#[cfg(test)]
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impl Command for Let {
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fn name(&self) -> &str {
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"let"
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}
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fn usage(&self) -> &str {
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"Create a variable and give it a value."
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("let")
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.required("var_name", SyntaxShape::VarWithOptType, "variable name")
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.required(
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"initial_value",
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SyntaxShape::Keyword(b"=".to_vec(), Box::new(SyntaxShape::MathExpression)),
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"equals sign followed by value",
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)
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}
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fn run(
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&self,
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_engine_state: &EngineState,
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_stack: &mut Stack,
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_call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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}
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}
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fn test_int(
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test_tag: &str, // name of sub-test
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test: &[u8], // input expression
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expected_val: Expr, // (usually Expr::{Int,String, Float}, not ::BinOp...
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expected_err: Option<&str>,
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) // substring in error text
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{
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, test, true);
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let err = working_set.parse_errors.first();
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if let Some(err_pat) = expected_err {
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if let Some(parse_err) = err {
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let act_err = format!("{:?}", parse_err);
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assert!(
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act_err.contains(err_pat),
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"{test_tag}: expected err to contain {err_pat}, but actual error was {act_err}"
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);
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} else {
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assert!(
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err.is_some(),
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"{test_tag}: expected err containing {err_pat}, but no error returned"
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);
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}
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} else {
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assert!(err.is_none(), "{test_tag}: unexpected error {err:#?}");
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assert_eq!(block.len(), 1, "{test_tag}: result block length > 1");
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let expressions = &block[0];
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assert_eq!(
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expressions.len(),
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1,
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"{test_tag}: got multiple result expressions, expected 1"
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);
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if let PipelineElement::Expression(
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_,
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Expression {
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expr: observed_val, ..
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},
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) = &expressions[0]
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{
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compare_rhs_binaryOp(test_tag, &expected_val, observed_val);
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}
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}
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}
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#[allow(non_snake_case)]
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fn compare_rhs_binaryOp(
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test_tag: &str,
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expected: &Expr, // the rhs expr we hope to see (::Int, ::Float, not ::B)
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observed: &Expr, // the Expr actually provided: can be ::Int, ::Float, ::String,
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// or ::BinOp (in which case rhs is checked), or ::Call (in which case cmd is checked)
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) {
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match observed {
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Expr::Int(..) | Expr::Float(..) | Expr::String(..) => {
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assert_eq!(
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expected, observed,
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"{test_tag}: Expected: {expected:#?}, observed {observed:#?}"
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);
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}
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Expr::BinaryOp(_, _, e) => {
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let observed_expr = &e.expr;
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// can't pattern match Box<Foo>, but can match the box, then deref in separate statement.
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assert_eq!(
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expected, observed_expr,
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"{test_tag}: Expected: {expected:#?}, observed: {observed:#?}"
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)
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}
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Expr::ExternalCall(e, _, _) => {
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let observed_expr = &e.expr;
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assert_eq!(
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expected, observed_expr,
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"{test_tag}: Expected: {expected:#?}, observed: {observed_expr:#?}"
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)
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}
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_ => {
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panic!("{test_tag}: Unexpected Expr:: variant returned, observed {observed:#?}");
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}
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}
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}
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#[test]
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pub fn multi_test_parse_int() {
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struct Test<'a>(&'a str, &'a [u8], Expr, Option<&'a str>);
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// use test expression of form '0 + x' to force parse() to parse x as numeric.
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// if expression were just 'x', parse() would try other items that would mask the error we're looking for.
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let tests = vec![
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Test("binary literal int", b"0 + 0b0", Expr::Int(0), None),
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Test(
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"binary literal invalid digits",
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b"0 + 0b2",
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Expr::Int(0),
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Some("invalid digits for radix 2"),
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),
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Test("octal literal int", b"0 + 0o1", Expr::Int(1), None),
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Test(
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"octal literal int invalid digits",
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b"0 + 0o8",
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Expr::Int(0),
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Some("invalid digits for radix 8"),
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),
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Test(
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"octal literal int truncated",
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b"0 + 0o",
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Expr::Int(0),
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Some("invalid digits for radix 8"),
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),
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Test("hex literal int", b"0 + 0x2", Expr::Int(2), None),
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Test(
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"hex literal int invalid digits",
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b"0 + 0x0aq",
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Expr::Int(0),
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Some("invalid digits for radix 16"),
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),
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Test(
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"hex literal with 'e' not mistaken for float",
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b"0 + 0x00e0",
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Expr::Int(0xe0),
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None,
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),
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// decimal (rad10) literal is anything that starts with
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// optional sign then a digit.
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Test("rad10 literal int", b"0 + 42", Expr::Int(42), None),
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Test(
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"rad10 with leading + sign",
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b"0 + -42",
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Expr::Int(-42),
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None,
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),
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Test("rad10 with leading - sign", b"0 + +42", Expr::Int(42), None),
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Test(
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"flag char is string, not (invalid) int",
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b"-x",
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Expr::String("-x".into()),
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None,
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),
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Test(
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"keyword parameter is string",
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b"--exact",
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Expr::String("--exact".into()),
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None,
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),
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Test(
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"ranges or relative paths not confused for int",
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b"./a/b",
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Expr::String("./a/b".into()),
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None,
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),
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Test(
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"semver data not confused for int",
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b"'1.0.1'",
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Expr::String("1.0.1".into()),
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None,
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),
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];
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for test in tests {
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test_int(test.0, test.1, test.2, test.3);
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}
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}
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#[ignore]
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#[test]
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pub fn multi_test_parse_number() {
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struct Test<'a>(&'a str, &'a [u8], Expr, Option<&'a str>);
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// use test expression of form '0 + x' to force parse() to parse x as numeric.
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// if expression were just 'x', parse() would try other items that would mask the error we're looking for.
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let tests = vec![
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Test("float decimal", b"0 + 43.5", Expr::Float(43.5), None),
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//Test("float with leading + sign", b"0 + +41.7", Expr::Float(-41.7), None),
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Test(
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"float with leading - sign",
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b"0 + -41.7",
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Expr::Float(-41.7),
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None,
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),
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Test(
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"float scientific notation",
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b"0 + 3e10",
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Expr::Float(3.00e10),
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None,
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),
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Test(
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"float decimal literal invalid digits",
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b"0 + .3foo",
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Expr::Int(0),
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Some("invalid digits"),
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),
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Test(
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"float scientific notation literal invalid digits",
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b"0 + 3e0faa",
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Expr::Int(0),
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Some("invalid digits"),
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),
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Test(
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// odd that error is unsupportedOperation, but it does fail.
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"decimal literal int 2 leading signs",
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b"0 + --9",
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Expr::Int(0),
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Some("UnsupportedOperation"),
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),
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//Test(
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// ".<string> should not be taken as float",
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// b"abc + .foo",
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// Expr::String("..".into()),
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// None,
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//),
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];
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for test in tests {
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test_int(test.0, test.1, test.2, test.3);
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}
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}
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#[ignore]
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#[test]
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fn test_parse_any() {
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let test = b"1..10";
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, test, true);
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match (block, working_set.parse_errors.first()) {
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(_, Some(e)) => {
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println!("test: {test:?}, error: {e:#?}");
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}
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(b, None) => {
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println!("test: {test:?}, parse: {b:#?}");
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}
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}
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}
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#[test]
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pub fn parse_int() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"3", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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assert!(matches!(
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expressions[0],
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PipelineElement::Expression(
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_,
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Expression {
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expr: Expr::Int(3),
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..
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}
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)
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))
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}
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#[test]
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pub fn parse_int_with_underscores() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"420_69_2023", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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assert!(matches!(
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expressions[0],
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PipelineElement::Expression(
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_,
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Expression {
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expr: Expr::Int(420692023),
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..
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}
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)
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))
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}
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#[test]
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pub fn parse_cell_path() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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working_set.add_variable(
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"foo".to_string().into_bytes(),
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Span::test_data(),
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nu_protocol::Type::Record(vec![]),
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false,
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);
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let block = parse(&mut working_set, None, b"$foo.bar.baz", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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// hoo boy this pattern matching is a pain
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if let PipelineElement::Expression(_, expr) = &expressions[0] {
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if let Expr::FullCellPath(b) = &expr.expr {
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assert!(matches!(
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b.head,
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Expression {
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expr: Expr::Var(_),
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..
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}
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));
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if let [a, b] = &b.tail[..] {
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if let PathMember::String { val, optional, .. } = a {
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assert_eq!(val, "bar");
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assert_eq!(optional, &false);
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} else {
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panic!("wrong type")
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}
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if let PathMember::String { val, optional, .. } = b {
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assert_eq!(val, "baz");
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assert_eq!(optional, &false);
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} else {
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panic!("wrong type")
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}
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} else {
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panic!("cell path tail is unexpected")
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}
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} else {
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panic!("Not a cell path");
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}
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} else {
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panic!("Not an expression")
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}
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}
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#[test]
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pub fn parse_cell_path_optional() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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working_set.add_variable(
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"foo".to_string().into_bytes(),
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Span::test_data(),
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nu_protocol::Type::Record(vec![]),
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false,
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);
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let block = parse(&mut working_set, None, b"$foo.bar?.baz", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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// hoo boy this pattern matching is a pain
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if let PipelineElement::Expression(_, expr) = &expressions[0] {
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if let Expr::FullCellPath(b) = &expr.expr {
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assert!(matches!(
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b.head,
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Expression {
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expr: Expr::Var(_),
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..
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}
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));
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if let [a, b] = &b.tail[..] {
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if let PathMember::String { val, optional, .. } = a {
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assert_eq!(val, "bar");
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assert_eq!(optional, &true);
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} else {
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panic!("wrong type")
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}
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if let PathMember::String { val, optional, .. } = b {
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assert_eq!(val, "baz");
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assert_eq!(optional, &false);
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} else {
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panic!("wrong type")
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}
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} else {
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panic!("cell path tail is unexpected")
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}
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} else {
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panic!("Not a cell path");
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}
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} else {
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panic!("Not an expression")
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}
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}
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#[test]
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pub fn parse_binary_with_hex_format() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"0x[13]", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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if let PipelineElement::Expression(_, expr) = &expressions[0] {
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assert_eq!(expr.expr, Expr::Binary(vec![0x13]))
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} else {
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panic!("Not an expression")
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}
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}
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#[test]
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pub fn parse_binary_with_incomplete_hex_format() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"0x[3]", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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if let PipelineElement::Expression(_, expr) = &expressions[0] {
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assert_eq!(expr.expr, Expr::Binary(vec![0x03]))
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} else {
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panic!("Not an expression")
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}
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}
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|
|
#[test]
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pub fn parse_binary_with_binary_format() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"0b[1010 1000]", true);
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
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assert_eq!(expressions.len(), 1);
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if let PipelineElement::Expression(_, expr) = &expressions[0] {
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assert_eq!(expr.expr, Expr::Binary(vec![0b10101000]))
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} else {
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panic!("Not an expression")
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}
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}
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|
|
|
#[test]
|
|
pub fn parse_binary_with_incomplete_binary_format() {
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let engine_state = EngineState::new();
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let mut working_set = StateWorkingSet::new(&engine_state);
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let block = parse(&mut working_set, None, b"0b[10]", true);
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|
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assert!(working_set.parse_errors.is_empty());
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assert_eq!(block.len(), 1);
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let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert_eq!(expr.expr, Expr::Binary(vec![0b00000010]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_octal_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"0o[250]", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert_eq!(expr.expr, Expr::Binary(vec![0o250]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_incomplete_octal_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"0o[2]", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert_eq!(expr.expr, Expr::Binary(vec![0o2]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_invalid_octal_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"0b[90]", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert!(!matches!(&expr.expr, Expr::Binary(_)))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_multi_byte_char() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
// found using fuzzing, Rust can panic if you slice into this string
|
|
let contents = b"0x[\xEF\xBF\xBD]";
|
|
let block = parse(&mut working_set, None, contents, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert!(!matches!(&expr.expr, Expr::Binary(_)))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").named("--jazz", SyntaxShape::Int, "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
let block = parse(&mut working_set, None, b"foo", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) = &expressions[0]
|
|
{
|
|
assert_eq!(call.decl_id, 0);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_missing_flag_arg() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").named("jazz", SyntaxShape::Int, "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
parse(&mut working_set, None, b"foo --jazz", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::MissingFlagParam(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_missing_short_flag_arg() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").named("--jazz", SyntaxShape::Int, "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
parse(&mut working_set, None, b"foo -j", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::MissingFlagParam(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_short_flag_batch_arg_allowed() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo")
|
|
.named("--jazz", SyntaxShape::Int, "jazz!!", Some('j'))
|
|
.switch("--math", "math!!", Some('m'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
let block = parse(&mut working_set, None, b"foo -mj 10", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) = &expressions[0]
|
|
{
|
|
assert_eq!(call.decl_id, 0);
|
|
assert_eq!(call.arguments.len(), 2);
|
|
matches!(call.arguments[0], Argument::Named((_, None, None)));
|
|
matches!(call.arguments[1], Argument::Named((_, None, Some(_))));
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_short_flag_batch_arg_disallowed() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo")
|
|
.named("--jazz", SyntaxShape::Int, "jazz!!", Some('j'))
|
|
.switch("--math", "math!!", Some('m'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
parse(&mut working_set, None, b"foo -jm 10", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::OnlyLastFlagInBatchCanTakeArg(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_short_flag_batch_disallow_multiple_args() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo")
|
|
.named("--math", SyntaxShape::Int, "math!!", Some('m'))
|
|
.named("--jazz", SyntaxShape::Int, "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
|
|
parse(&mut working_set, None, b"foo -mj 10 20", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::OnlyLastFlagInBatchCanTakeArg(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_unknown_shorthand() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").switch("--jazz", "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
parse(&mut working_set, None, b"foo -mj", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::UnknownFlag(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_extra_positional() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").switch("--jazz", "jazz!!", Some('j'));
|
|
working_set.add_decl(sig.predeclare());
|
|
parse(&mut working_set, None, b"foo -j 100", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::ExtraPositional(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_missing_req_positional() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").required("jazz", SyntaxShape::Int, "jazz!!");
|
|
working_set.add_decl(sig.predeclare());
|
|
parse(&mut working_set, None, b"foo", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::MissingPositional(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_missing_req_flag() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let sig = Signature::build("foo").required_named("--jazz", SyntaxShape::Int, "jazz!!", None);
|
|
working_set.add_decl(sig.predeclare());
|
|
parse(&mut working_set, None, b"foo", true);
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::MissingRequiredFlag(..))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
fn test_nothing_comparison_eq() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let block = parse(&mut working_set, None, b"2 == null", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
&expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::BinaryOp(..),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn test_nothing_comparison_neq() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let block = parse(&mut working_set, None, b"2 != null", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
&expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::BinaryOp(..),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
mod string {
|
|
use super::*;
|
|
|
|
#[test]
|
|
pub fn parse_string() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"\"hello nushell\"", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
assert_eq!(expr.expr, Expr::String("hello nushell".to_string()))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
mod interpolation {
|
|
use nu_protocol::Span;
|
|
|
|
use super::*;
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"$\"hello (39 + 3)\"", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 2);
|
|
|
|
assert_eq!(subexprs[0], &Expr::String("hello ".to_string()));
|
|
|
|
assert!(matches!(subexprs[1], &Expr::FullCellPath(..)));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation_escaped_parenthesis() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"$\"hello \\(39 + 3)\"", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 1);
|
|
|
|
assert_eq!(subexprs[0], &Expr::String("hello (39 + 3)".to_string()));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation_escaped_backslash_before_parenthesis() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"$\"hello \\\\(39 + 3)\"", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 2);
|
|
|
|
assert_eq!(subexprs[0], &Expr::String("hello \\".to_string()));
|
|
|
|
assert!(matches!(subexprs[1], &Expr::FullCellPath(..)));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation_backslash_count_reset_by_expression() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, b"$\"\\(1 + 3)\\(7 - 5)\"", true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 1);
|
|
assert_eq!(subexprs[0], &Expr::String("(1 + 3)(7 - 5)".to_string()));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_nested_expressions() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_variable(
|
|
"foo".to_string().into_bytes(),
|
|
Span::new(0, 0),
|
|
nu_protocol::Type::CellPath,
|
|
false,
|
|
);
|
|
|
|
parse(
|
|
&mut working_set,
|
|
None,
|
|
br#"
|
|
$"(($foo))"
|
|
"#,
|
|
true,
|
|
);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_path_expression() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_variable(
|
|
"foo".to_string().into_bytes(),
|
|
Span::new(0, 0),
|
|
nu_protocol::Type::CellPath,
|
|
false,
|
|
);
|
|
|
|
parse(
|
|
&mut working_set,
|
|
None,
|
|
br#"
|
|
$"Hello ($foo.bar)"
|
|
"#,
|
|
true,
|
|
);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
}
|
|
}
|
|
}
|
|
|
|
mod range {
|
|
use super::*;
|
|
use nu_protocol::ast::{RangeInclusion, RangeOperator};
|
|
|
|
#[rstest]
|
|
#[case(b"0..10", RangeInclusion::Inclusive, "inclusive")]
|
|
#[case(b"0..=10", RangeInclusion::Inclusive, "=inclusive")]
|
|
#[case(b"0..<10", RangeInclusion::RightExclusive, "exclusive")]
|
|
#[case(b"10..0", RangeInclusion::Inclusive, "reverse inclusive")]
|
|
#[case(b"10..=0", RangeInclusion::Inclusive, "reverse =inclusive")]
|
|
#[case(
|
|
b"(3 - 3)..<(8 + 2)",
|
|
RangeInclusion::RightExclusive,
|
|
"subexpression exclusive"
|
|
)]
|
|
#[case(
|
|
b"(3 - 3)..(8 + 2)",
|
|
RangeInclusion::Inclusive,
|
|
"subexpression inclusive"
|
|
)]
|
|
#[case(
|
|
b"(3 - 3)..=(8 + 2)",
|
|
RangeInclusion::Inclusive,
|
|
"subexpression =inclusive"
|
|
)]
|
|
#[case(b"-10..-3", RangeInclusion::Inclusive, "negative inclusive")]
|
|
#[case(b"-10..=-3", RangeInclusion::Inclusive, "negative =inclusive")]
|
|
#[case(b"-10..<-3", RangeInclusion::RightExclusive, "negative exclusive")]
|
|
|
|
fn parse_bounded_range(
|
|
#[case] phrase: &[u8],
|
|
#[case] inclusion: RangeInclusion,
|
|
#[case] tag: &str,
|
|
) {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, phrase, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1, "{tag}: block length");
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1, "{tag}: expression length");
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr:
|
|
Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: the_inclusion,
|
|
..
|
|
},
|
|
),
|
|
..
|
|
},
|
|
) = expressions[0]
|
|
{
|
|
assert_eq!(
|
|
the_inclusion, inclusion,
|
|
"{tag}: wrong RangeInclusion {the_inclusion:?}"
|
|
);
|
|
} else {
|
|
panic!("{tag}: expression mismatch.")
|
|
};
|
|
}
|
|
|
|
#[rstest]
|
|
#[case(
|
|
b"let a = 2; $a..10",
|
|
RangeInclusion::Inclusive,
|
|
"variable start inclusive"
|
|
)]
|
|
#[case(
|
|
b"let a = 2; $a..=10",
|
|
RangeInclusion::Inclusive,
|
|
"variable start =inclusive"
|
|
)]
|
|
#[case(
|
|
b"let a = 2; $a..<($a + 10)",
|
|
RangeInclusion::RightExclusive,
|
|
"subexpression variable exclusive"
|
|
)]
|
|
fn parse_variable_range(
|
|
#[case] phrase: &[u8],
|
|
#[case] inclusion: RangeInclusion,
|
|
#[case] tag: &str,
|
|
) {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_decl(Box::new(Let));
|
|
|
|
let block = parse(&mut working_set, None, phrase, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 2, "{tag} block len 2");
|
|
|
|
let expressions = &block[1];
|
|
assert_eq!(expressions.len(), 1, "{tag}: expression length 1");
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr:
|
|
Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: the_inclusion,
|
|
..
|
|
},
|
|
),
|
|
..
|
|
},
|
|
) = expressions[0]
|
|
{
|
|
assert_eq!(
|
|
the_inclusion, inclusion,
|
|
"{tag}: wrong RangeInclusion {the_inclusion:?}"
|
|
);
|
|
} else {
|
|
panic!("{tag}: expression mismatch.")
|
|
};
|
|
}
|
|
|
|
#[rstest]
|
|
#[case(b"0..", RangeInclusion::Inclusive, "right unbounded")]
|
|
#[case(b"0..=", RangeInclusion::Inclusive, "right unbounded =inclusive")]
|
|
#[case(b"0..<", RangeInclusion::RightExclusive, "right unbounded")]
|
|
|
|
fn parse_right_unbounded_range(
|
|
#[case] phrase: &[u8],
|
|
#[case] inclusion: RangeInclusion,
|
|
#[case] tag: &str,
|
|
) {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, phrase, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1, "{tag}: block len 1");
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1, "{tag}: expression length 1");
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr:
|
|
Expr::Range(
|
|
Some(_),
|
|
None,
|
|
None,
|
|
RangeOperator {
|
|
inclusion: the_inclusion,
|
|
..
|
|
},
|
|
),
|
|
..
|
|
},
|
|
) = expressions[0]
|
|
{
|
|
assert_eq!(
|
|
the_inclusion, inclusion,
|
|
"{tag}: wrong RangeInclusion {the_inclusion:?}"
|
|
);
|
|
} else {
|
|
panic!("{tag}: expression mismatch.")
|
|
};
|
|
}
|
|
|
|
#[rstest]
|
|
#[case(b"..10", RangeInclusion::Inclusive, "left unbounded inclusive")]
|
|
#[case(b"..=10", RangeInclusion::Inclusive, "left unbounded =inclusive")]
|
|
#[case(b"..<10", RangeInclusion::RightExclusive, "left unbounded exclusive")]
|
|
|
|
fn parse_left_unbounded_range(
|
|
#[case] phrase: &[u8],
|
|
#[case] inclusion: RangeInclusion,
|
|
#[case] tag: &str,
|
|
) {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, phrase, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1, "{tag}: block len 1");
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1, "{tag}: expression length 1");
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr:
|
|
Expr::Range(
|
|
None,
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: the_inclusion,
|
|
..
|
|
},
|
|
),
|
|
..
|
|
},
|
|
) = expressions[0]
|
|
{
|
|
assert_eq!(
|
|
the_inclusion, inclusion,
|
|
"{tag}: wrong RangeInclusion {the_inclusion:?}"
|
|
);
|
|
} else {
|
|
panic!("{tag}: expression mismatch.")
|
|
};
|
|
}
|
|
|
|
#[rstest]
|
|
#[case(b"2.0..4.0..10.0", RangeInclusion::Inclusive, "float inclusive")]
|
|
#[case(b"2.0..4.0..=10.0", RangeInclusion::Inclusive, "float =inclusive")]
|
|
#[case(b"2.0..4.0..<10.0", RangeInclusion::RightExclusive, "float exclusive")]
|
|
|
|
fn parse_float_range(
|
|
#[case] phrase: &[u8],
|
|
#[case] inclusion: RangeInclusion,
|
|
#[case] tag: &str,
|
|
) {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let block = parse(&mut working_set, None, phrase, true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1, "{tag}: block length 1");
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1, "{tag}: expression length 1");
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr:
|
|
Expr::Range(
|
|
Some(_),
|
|
Some(_),
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: the_inclusion,
|
|
..
|
|
},
|
|
),
|
|
..
|
|
},
|
|
) = expressions[0]
|
|
{
|
|
assert_eq!(
|
|
the_inclusion, inclusion,
|
|
"{tag}: wrong RangeInclusion {the_inclusion:?}"
|
|
);
|
|
} else {
|
|
panic!("{tag}: expression mismatch.")
|
|
};
|
|
}
|
|
|
|
#[test]
|
|
fn bad_parse_does_crash() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let _ = parse(&mut working_set, None, b"(0)..\"a\"", true);
|
|
|
|
assert!(!working_set.parse_errors.is_empty());
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod input_types {
|
|
use super::*;
|
|
use nu_protocol::ast::Call;
|
|
use nu_protocol::{ast::Argument, Category, PipelineData, ShellError, Type};
|
|
|
|
#[derive(Clone)]
|
|
pub struct LsTest;
|
|
|
|
impl Command for LsTest {
|
|
fn name(&self) -> &str {
|
|
"ls"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock ls command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name()).category(Category::Default)
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct GroupBy;
|
|
|
|
impl Command for GroupBy {
|
|
fn name(&self) -> &str {
|
|
"group-by"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock group-by command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.required("column", SyntaxShape::String, "column name")
|
|
.category(Category::Default)
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct ToCustom;
|
|
|
|
impl Command for ToCustom {
|
|
fn name(&self) -> &str {
|
|
"to-custom"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock converter command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.input_output_type(Type::Any, Type::Custom("custom".into()))
|
|
.category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct GroupByCustom;
|
|
|
|
impl Command for GroupByCustom {
|
|
fn name(&self) -> &str {
|
|
"group-by"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock custom group-by command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.required("column", SyntaxShape::String, "column name")
|
|
.required("other", SyntaxShape::String, "other value")
|
|
.input_output_type(Type::Custom("custom".into()), Type::Custom("custom".into()))
|
|
.category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct AggCustom;
|
|
|
|
impl Command for AggCustom {
|
|
fn name(&self) -> &str {
|
|
"agg"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock custom agg command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.required("operation", SyntaxShape::String, "operation")
|
|
.input_output_type(Type::Custom("custom".into()), Type::Custom("custom".into()))
|
|
.category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct AggMin;
|
|
|
|
impl Command for AggMin {
|
|
fn name(&self) -> &str {
|
|
"min"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock custom min command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name()).category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct WithColumn;
|
|
|
|
impl Command for WithColumn {
|
|
fn name(&self) -> &str {
|
|
"with-column"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock custom with-column command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.rest("operation", SyntaxShape::Any, "operation")
|
|
.input_output_type(Type::Custom("custom".into()), Type::Custom("custom".into()))
|
|
.category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct Collect;
|
|
|
|
impl Command for Collect {
|
|
fn name(&self) -> &str {
|
|
"collect"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock custom collect command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build(self.name())
|
|
.input_output_type(Type::Custom("custom".into()), Type::Custom("custom".into()))
|
|
.category(Category::Custom("custom".into()))
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
#[derive(Clone)]
|
|
pub struct IfMocked;
|
|
|
|
impl Command for IfMocked {
|
|
fn name(&self) -> &str {
|
|
"if"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Mock if command."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build("if")
|
|
.required("cond", SyntaxShape::MathExpression, "condition to check")
|
|
.required(
|
|
"then_block",
|
|
SyntaxShape::Block,
|
|
"block to run if check succeeds",
|
|
)
|
|
.optional(
|
|
"else_expression",
|
|
SyntaxShape::Keyword(
|
|
b"else".to_vec(),
|
|
Box::new(SyntaxShape::OneOf(vec![
|
|
SyntaxShape::Block,
|
|
SyntaxShape::Expression,
|
|
])),
|
|
),
|
|
"expression or block to run if check fails",
|
|
)
|
|
.category(Category::Core)
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
fn add_declarations(engine_state: &mut EngineState) {
|
|
let delta = {
|
|
let mut working_set = StateWorkingSet::new(engine_state);
|
|
working_set.add_decl(Box::new(Let));
|
|
working_set.add_decl(Box::new(AggCustom));
|
|
working_set.add_decl(Box::new(GroupByCustom));
|
|
working_set.add_decl(Box::new(GroupBy));
|
|
working_set.add_decl(Box::new(LsTest));
|
|
working_set.add_decl(Box::new(ToCustom));
|
|
working_set.add_decl(Box::new(AggMin));
|
|
working_set.add_decl(Box::new(Collect));
|
|
working_set.add_decl(Box::new(WithColumn));
|
|
working_set.add_decl(Box::new(IfMocked));
|
|
|
|
working_set.render()
|
|
};
|
|
|
|
engine_state
|
|
.merge_delta(delta)
|
|
.expect("Error merging delta");
|
|
}
|
|
|
|
#[test]
|
|
fn call_types_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"ls | to-custom | group-by name other"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 3);
|
|
|
|
match &expressions[0] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"ls", &Type::Nothing)
|
|
.expect("Error merging delta");
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set.find_decl(b"to-custom", &Type::Any).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
|
|
match &expressions[2] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"group-by", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn storing_variable_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input =
|
|
r#"let a = (ls | to-custom | group-by name other); let b = (1+3); $a | agg sum"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 3);
|
|
|
|
let expressions = &block[2];
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"agg", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn stored_variable_operation_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"let a = (ls | to-custom | group-by name other); ($a + $a) | agg sum"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 2);
|
|
|
|
let expressions = &block[1];
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"agg", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn multiple_stored_variable_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"
|
|
let a = (ls | to-custom | group-by name other); [1 2 3] | to-custom; [1 2 3] | to-custom"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 3);
|
|
|
|
let expressions = &block[1];
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set.find_decl(b"to-custom", &Type::Any).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
|
|
let expressions = &block[2];
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set.find_decl(b"to-custom", &Type::Any).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn call_non_custom_types_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"ls | group-by name"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 2);
|
|
|
|
match &expressions[0] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set.find_decl(b"ls", &Type::Nothing).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set.find_decl(b"group-by", &Type::Any).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn nested_operations_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let (block, delta) = {
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"ls | to-custom | group-by name other | agg ("b" | min)"#;
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
(block, working_set.render())
|
|
};
|
|
|
|
engine_state.merge_delta(delta).unwrap();
|
|
|
|
let expressions = &block[0];
|
|
match &expressions[3] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let arg = &call.arguments[0];
|
|
match arg {
|
|
Argument::Positional(a) => match &a.expr {
|
|
Expr::FullCellPath(path) => match &path.head.expr {
|
|
Expr::Subexpression(id) => {
|
|
let block = engine_state.get_block(*id);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 2);
|
|
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let working_set = StateWorkingSet::new(&engine_state);
|
|
let expected_id =
|
|
working_set.find_decl(b"min", &Type::Any).unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
_ => panic!("Expected Subexpression not found"),
|
|
},
|
|
_ => panic!("Expected FullCellPath not found"),
|
|
},
|
|
_ => panic!("Expected Argument Positional not found"),
|
|
}
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn call_with_list_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"[[a b]; [1 2] [3 4]] | to-custom | with-column [ ("a" | min) ("b" | min) ] | collect"#;
|
|
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
match &expressions[2] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"with-column", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
|
|
match &expressions[3] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"collect", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn operations_within_blocks_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let inputs = vec![
|
|
r#"let a = 'b'; ($a == 'b') or ($a == 'b')"#,
|
|
r#"let a = 'b'; ($a == 'b') or ($a == 'b') and ($a == 'b')"#,
|
|
r#"let a = 1; ($a == 1) or ($a == 2) and ($a == 3)"#,
|
|
r#"let a = 'b'; if ($a == 'b') or ($a == 'b') { true } else { false }"#,
|
|
r#"let a = 1; if ($a == 1) or ($a > 0) { true } else { false }"#,
|
|
];
|
|
|
|
for input in inputs {
|
|
let block = parse(&mut working_set, None, input.as_bytes(), true);
|
|
|
|
assert!(working_set.parse_errors.is_empty());
|
|
assert_eq!(block.len(), 2, "testing: {input}");
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn else_errors_correctly() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
parse(
|
|
&mut working_set,
|
|
None,
|
|
b"if false { 'a' } else { $foo }",
|
|
true,
|
|
);
|
|
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::VariableNotFound(_, _))
|
|
));
|
|
}
|
|
|
|
#[test]
|
|
fn else_if_errors_correctly() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
parse(
|
|
&mut working_set,
|
|
None,
|
|
b"if false { 'a' } else $foo { 'b' }",
|
|
true,
|
|
);
|
|
|
|
assert!(matches!(
|
|
working_set.parse_errors.first(),
|
|
Some(ParseError::VariableNotFound(_, _))
|
|
));
|
|
}
|
|
}
|