forked from extern/nushell
21b84a6d65
This is a follow up from https://github.com/nushell/nushell/pull/7540. Please provide feedback if you have the time! ## Summary This PR lets you use `?` to indicate that a member in a cell path is optional and Nushell should return `null` if that member cannot be accessed. Unlike the previous PR, `?` is now a _postfix_ modifier for cell path members. A cell path of `.foo?.bar` means that `foo` is optional and `bar` is not. `?` does _not_ suppress all errors; it is intended to help in situations where data has "holes", i.e. the data types are correct but something is missing. Type mismatches (like trying to do a string path access on a date) will still fail. ### Record Examples ```bash { foo: 123 }.foo # returns 123 { foo: 123 }.bar # errors { foo: 123 }.bar? # returns null { foo: 123 } | get bar # errors { foo: 123 } | get bar? # returns null { foo: 123 }.bar.baz # errors { foo: 123 }.bar?.baz # errors because `baz` is not present on the result from `bar?` { foo: 123 }.bar.baz? # errors { foo: 123 }.bar?.baz? # returns null ``` ### List Examples ``` 〉[{foo: 1} {foo: 2} {}].foo Error: nu:🐚:column_not_found × Cannot find column ╭─[entry #30:1:1] 1 │ [{foo: 1} {foo: 2} {}].foo · ─┬ ─┬─ · │ ╰── cannot find column 'foo' · ╰── value originates here ╰──── 〉[{foo: 1} {foo: 2} {}].foo? ╭───┬───╮ │ 0 │ 1 │ │ 1 │ 2 │ │ 2 │ │ ╰───┴───╯ 〉[{foo: 1} {foo: 2} {}].foo?.2 | describe nothing 〉[a b c].4? | describe nothing 〉[{foo: 1} {foo: 2} {}] | where foo? == 1 ╭───┬─────╮ │ # │ foo │ ├───┼─────┤ │ 0 │ 1 │ ╰───┴─────╯ ``` # Breaking changes 1. Column names with `?` in them now need to be quoted. 2. The `-i`/`--ignore-errors` flag has been removed from `get` and `select` 1. After this PR, most `get` error handling can be done with `?` and/or `try`/`catch`. 4. Cell path accesses like this no longer work without a `?`: ```bash 〉[{a:1 b:2} {a:3}].b.0 2 ``` We had some clever code that was able to recognize that since we only want row `0`, it's OK if other rows are missing column `b`. I removed that because it's tricky to maintain, and now that query needs to be written like: ```bash 〉[{a:1 b:2} {a:3}].b?.0 2 ``` I think the regression is acceptable for now. I plan to do more work in the future to enable streaming of cell path accesses, and when that happens I'll be able to make `.b.0` work again.
1970 lines
58 KiB
Rust
1970 lines
58 KiB
Rust
use nu_parser::ParseError;
|
|
use nu_parser::*;
|
|
use nu_protocol::ast::{Call, PathMember};
|
|
use nu_protocol::Span;
|
|
use nu_protocol::{
|
|
ast::{Expr, Expression, PipelineElement},
|
|
engine::{Command, EngineState, Stack, StateWorkingSet},
|
|
PipelineData, ShellError, Signature, SyntaxShape,
|
|
};
|
|
|
|
#[cfg(test)]
|
|
#[derive(Clone)]
|
|
pub struct Let;
|
|
|
|
#[cfg(test)]
|
|
impl Command for Let {
|
|
fn name(&self) -> &str {
|
|
"let"
|
|
}
|
|
|
|
fn usage(&self) -> &str {
|
|
"Create a variable and give it a value."
|
|
}
|
|
|
|
fn signature(&self) -> nu_protocol::Signature {
|
|
Signature::build("let")
|
|
.required("var_name", SyntaxShape::VarWithOptType, "variable name")
|
|
.required(
|
|
"initial_value",
|
|
SyntaxShape::Keyword(b"=".to_vec(), Box::new(SyntaxShape::Expression)),
|
|
"equals sign followed by value",
|
|
)
|
|
}
|
|
|
|
fn run(
|
|
&self,
|
|
_engine_state: &EngineState,
|
|
_stack: &mut Stack,
|
|
_call: &Call,
|
|
_input: PipelineData,
|
|
) -> Result<PipelineData, ShellError> {
|
|
todo!()
|
|
}
|
|
}
|
|
|
|
fn test_int(
|
|
test_tag: &str, // name of sub-test
|
|
test: &[u8], // input expression
|
|
expected_val: Expr, // (usually Expr::{Int,String, Float}, not ::BinOp...
|
|
expected_err: Option<&str>,
|
|
) // substring in error text
|
|
{
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, test, true, &[]);
|
|
|
|
if let Some(err_pat) = expected_err {
|
|
if let Some(parse_err) = err {
|
|
let act_err = format!("{:?}", parse_err);
|
|
assert!(
|
|
act_err.contains(err_pat),
|
|
"{test_tag}: expected err to contain {err_pat}, but actual error was {act_err}"
|
|
);
|
|
} else {
|
|
assert!(
|
|
err.is_some(),
|
|
"{test_tag}: expected err containing {err_pat}, but no error returned"
|
|
);
|
|
}
|
|
} else {
|
|
assert!(err.is_none(), "{test_tag}: unexpected error {err:#?}");
|
|
assert_eq!(block.len(), 1, "{test_tag}: result block length > 1");
|
|
let expressions = &block[0];
|
|
assert_eq!(
|
|
expressions.len(),
|
|
1,
|
|
"{test_tag}: got multiple result expressions, expected 1"
|
|
);
|
|
if let PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: observed_val, ..
|
|
},
|
|
) = &expressions[0]
|
|
{
|
|
compare_rhs_binaryOp(test_tag, &expected_val, observed_val);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[allow(non_snake_case)]
|
|
fn compare_rhs_binaryOp(
|
|
test_tag: &str,
|
|
expected: &Expr, // the rhs expr we hope to see (::Int, ::Float, not ::B)
|
|
observed: &Expr, // the Expr actually provided: can be ::Int, ::Float, ::String,
|
|
// or ::BinOp (in which case rhs is checked), or ::Call (in which case cmd is checked)
|
|
) {
|
|
match observed {
|
|
Expr::Int(..) | Expr::Float(..) | Expr::String(..) => {
|
|
assert_eq!(
|
|
expected, observed,
|
|
"{test_tag}: Expected: {expected:#?}, observed {observed:#?}"
|
|
);
|
|
}
|
|
Expr::BinaryOp(_, _, e) => {
|
|
let observed_expr = &e.expr;
|
|
// can't pattern match Box<Foo>, but can match the box, then deref in separate statement.
|
|
assert_eq!(
|
|
expected, observed_expr,
|
|
"{test_tag}: Expected: {expected:#?}, observed: {observed:#?}"
|
|
)
|
|
}
|
|
Expr::ExternalCall(e, _, _) => {
|
|
let observed_expr = &e.expr;
|
|
assert_eq!(
|
|
expected, observed_expr,
|
|
"{test_tag}: Expected: {expected:#?}, observed: {observed_expr:#?}"
|
|
)
|
|
}
|
|
_ => {
|
|
panic!("{test_tag}: Unexpected Expr:: variant returned, observed {observed:#?}");
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn multi_test_parse_int() {
|
|
struct Test<'a>(&'a str, &'a [u8], Expr, Option<&'a str>);
|
|
|
|
// use test expression of form '0 + x' to force parse() to parse x as numeric.
|
|
// if expression were just 'x', parse() would try other items that would mask the error we're looking for.
|
|
let tests = vec![
|
|
Test("binary literal int", b"0 + 0b0", Expr::Int(0), None),
|
|
Test(
|
|
"binary literal invalid digits",
|
|
b"0 + 0b2",
|
|
Expr::Int(0),
|
|
Some("invalid digits for radix 2"),
|
|
),
|
|
Test("octal literal int", b"0 + 0o1", Expr::Int(1), None),
|
|
Test(
|
|
"octal literal int invalid digits",
|
|
b"0 + 0o8",
|
|
Expr::Int(0),
|
|
Some("invalid digits for radix 8"),
|
|
),
|
|
Test(
|
|
"octal literal int truncated",
|
|
b"0 + 0o",
|
|
Expr::Int(0),
|
|
Some("invalid digits for radix 8"),
|
|
),
|
|
Test("hex literal int", b"0 + 0x2", Expr::Int(2), None),
|
|
Test(
|
|
"hex literal int invalid digits",
|
|
b"0 + 0x0aq",
|
|
Expr::Int(0),
|
|
Some("invalid digits for radix 16"),
|
|
),
|
|
Test(
|
|
"hex literal with 'e' not mistaken for float",
|
|
b"0 + 0x00e0",
|
|
Expr::Int(0xe0),
|
|
None,
|
|
),
|
|
// decimal (rad10) literal is anything that starts with
|
|
// optional sign then a digit.
|
|
Test("rad10 literal int", b"0 + 42", Expr::Int(42), None),
|
|
Test(
|
|
"rad10 with leading + sign",
|
|
b"0 + -42",
|
|
Expr::Int(-42),
|
|
None,
|
|
),
|
|
Test("rad10 with leading - sign", b"0 + +42", Expr::Int(42), None),
|
|
Test(
|
|
"flag char is string, not (invalid) int",
|
|
b"-x",
|
|
Expr::String("-x".into()),
|
|
None,
|
|
),
|
|
Test(
|
|
"keyword parameter is string",
|
|
b"--exact",
|
|
Expr::String("--exact".into()),
|
|
None,
|
|
),
|
|
Test(
|
|
"ranges or relative paths not confused for int",
|
|
b"./a/b",
|
|
Expr::String("./a/b".into()),
|
|
None,
|
|
),
|
|
Test(
|
|
"semver data not confused for int",
|
|
b"1.0.1",
|
|
Expr::String("1.0.1".into()),
|
|
None,
|
|
),
|
|
];
|
|
|
|
for test in tests {
|
|
test_int(test.0, test.1, test.2, test.3);
|
|
}
|
|
}
|
|
|
|
#[ignore]
|
|
#[test]
|
|
pub fn multi_test_parse_number() {
|
|
struct Test<'a>(&'a str, &'a [u8], Expr, Option<&'a str>);
|
|
|
|
// use test expression of form '0 + x' to force parse() to parse x as numeric.
|
|
// if expression were just 'x', parse() would try other items that would mask the error we're looking for.
|
|
let tests = vec![
|
|
Test("float decimal", b"0 + 43.5", Expr::Float(43.5), None),
|
|
//Test("float with leading + sign", b"0 + +41.7", Expr::Float(-41.7), None),
|
|
Test(
|
|
"float with leading - sign",
|
|
b"0 + -41.7",
|
|
Expr::Float(-41.7),
|
|
None,
|
|
),
|
|
Test(
|
|
"float scientific notation",
|
|
b"0 + 3e10",
|
|
Expr::Float(3.00e10),
|
|
None,
|
|
),
|
|
Test(
|
|
"float decimal literal invalid digits",
|
|
b"0 + .3foo",
|
|
Expr::Int(0),
|
|
Some("invalid digits"),
|
|
),
|
|
Test(
|
|
"float scientific notation literal invalid digits",
|
|
b"0 + 3e0faa",
|
|
Expr::Int(0),
|
|
Some("invalid digits"),
|
|
),
|
|
Test(
|
|
// odd that error is unsupportedOperation, but it does fail.
|
|
"decimal literal int 2 leading signs",
|
|
b"0 + --9",
|
|
Expr::Int(0),
|
|
Some("UnsupportedOperation"),
|
|
),
|
|
//Test(
|
|
// ".<string> should not be taken as float",
|
|
// b"abc + .foo",
|
|
// Expr::String("..".into()),
|
|
// None,
|
|
//),
|
|
];
|
|
|
|
for test in tests {
|
|
test_int(test.0, test.1, test.2, test.3);
|
|
}
|
|
}
|
|
#[ignore]
|
|
#[test]
|
|
fn test_parse_any() {
|
|
let test = b"1..10";
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, test, true, &[]);
|
|
|
|
match (block, err) {
|
|
(_, Some(e)) => {
|
|
println!("test: {test:?}, error: {e:#?}");
|
|
}
|
|
(b, None) => {
|
|
println!("test: {test:?}, parse: {b:#?}");
|
|
}
|
|
}
|
|
}
|
|
#[test]
|
|
pub fn parse_int() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"3", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Int(3),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_int_with_underscores() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"420_69_2023", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Int(420692023),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_cell_path() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_variable(
|
|
"foo".to_string().into_bytes(),
|
|
Span::test_data(),
|
|
nu_protocol::Type::Record(vec![]),
|
|
false,
|
|
);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"$foo.bar.baz", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
// hoo boy this pattern matching is a pain
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
if let Expr::FullCellPath(b) = &expr.expr {
|
|
assert!(matches!(
|
|
b.head,
|
|
Expression {
|
|
expr: Expr::Var(_),
|
|
..
|
|
}
|
|
));
|
|
if let [a, b] = &b.tail[..] {
|
|
if let PathMember::String { val, optional, .. } = a {
|
|
assert_eq!(val, "bar");
|
|
assert_eq!(optional, &false);
|
|
} else {
|
|
panic!("wrong type")
|
|
}
|
|
|
|
if let PathMember::String { val, optional, .. } = b {
|
|
assert_eq!(val, "baz");
|
|
assert_eq!(optional, &false);
|
|
} else {
|
|
panic!("wrong type")
|
|
}
|
|
} else {
|
|
panic!("cell path tail is unexpected")
|
|
}
|
|
} else {
|
|
panic!("Not a cell path");
|
|
}
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_cell_path_optional() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_variable(
|
|
"foo".to_string().into_bytes(),
|
|
Span::test_data(),
|
|
nu_protocol::Type::Record(vec![]),
|
|
false,
|
|
);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"$foo.bar?.baz", true, &[]);
|
|
|
|
if let Some(err) = err {
|
|
dbg!(err);
|
|
panic!();
|
|
}
|
|
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
// hoo boy this pattern matching is a pain
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
if let Expr::FullCellPath(b) = &expr.expr {
|
|
assert!(matches!(
|
|
b.head,
|
|
Expression {
|
|
expr: Expr::Var(_),
|
|
..
|
|
}
|
|
));
|
|
if let [a, b] = &b.tail[..] {
|
|
if let PathMember::String { val, optional, .. } = a {
|
|
assert_eq!(val, "bar");
|
|
assert_eq!(optional, &true);
|
|
} else {
|
|
panic!("wrong type")
|
|
}
|
|
|
|
if let PathMember::String { val, optional, .. } = b {
|
|
assert_eq!(val, "baz");
|
|
assert_eq!(optional, &false);
|
|
} else {
|
|
panic!("wrong type")
|
|
}
|
|
} else {
|
|
panic!("cell path tail is unexpected")
|
|
}
|
|
} else {
|
|
panic!("Not a cell path");
|
|
}
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_hex_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0x[13]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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![0x13]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_incomplete_hex_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0x[3]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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![0x03]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_binary_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0b[1010 1000]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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![0b10101000]))
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_binary_with_incomplete_binary_format() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0b[10]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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![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, err) = parse(&mut working_set, None, b"0o[250]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"0o[2]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"0b[90]", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, contents, true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"foo", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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());
|
|
|
|
let (_, err) = parse(&mut working_set, None, b"foo --jazz", true, &[]);
|
|
assert!(matches!(err, 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());
|
|
|
|
let (_, err) = parse(&mut working_set, None, b"foo -j", true, &[]);
|
|
assert!(matches!(err, Some(ParseError::MissingFlagParam(..))));
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_call_too_many_shortflag_args() {
|
|
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'))
|
|
.named("--math", SyntaxShape::Int, "math!!", Some('m'));
|
|
working_set.add_decl(sig.predeclare());
|
|
let (_, err) = parse(&mut working_set, None, b"foo -mj", true, &[]);
|
|
assert!(matches!(
|
|
err,
|
|
Some(ParseError::ShortFlagBatchCantTakeArg(..))
|
|
));
|
|
}
|
|
|
|
#[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());
|
|
let (_, err) = parse(&mut working_set, None, b"foo -mj", true, &[]);
|
|
assert!(matches!(err, 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());
|
|
let (_, err) = parse(&mut working_set, None, b"foo -j 100", true, &[]);
|
|
assert!(matches!(err, 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());
|
|
let (_, err) = parse(&mut working_set, None, b"foo", true, &[]);
|
|
assert!(matches!(err, 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());
|
|
let (_, err) = parse(&mut working_set, None, b"foo", true, &[]);
|
|
assert!(matches!(err, Some(ParseError::MissingRequiredFlag(..))));
|
|
}
|
|
|
|
#[test]
|
|
fn test_nothing_comparison_eq() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let (block, err) = parse(&mut working_set, None, b"2 == null", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"2 != null", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"\"hello nushell\"", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, b"$\"hello (39 + 3)\"", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 2);
|
|
|
|
assert_eq!(subexprs[0], &Expr::String("hello ".to_string()));
|
|
|
|
assert!(matches!(subexprs[1], &Expr::FullCellPath(..)));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation_escaped_parenthesis() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"$\"hello \\(39 + 3)\"", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
|
|
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, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
b"$\"hello \\\\(39 + 3)\"",
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
assert!(err.is_none());
|
|
|
|
assert_eq!(block.len(), 1);
|
|
let expressions = &block[0];
|
|
|
|
assert_eq!(expressions.len(), 1);
|
|
|
|
if let PipelineElement::Expression(_, expr) = &expressions[0] {
|
|
let subexprs: Vec<&Expr> = match expr {
|
|
Expression {
|
|
expr: Expr::StringInterpolation(expressions),
|
|
..
|
|
} => expressions.iter().map(|e| &e.expr).collect(),
|
|
_ => panic!("Expected an `Expr::StringInterpolation`"),
|
|
};
|
|
|
|
assert_eq!(subexprs.len(), 2);
|
|
|
|
assert_eq!(subexprs[0], &Expr::String("hello \\".to_string()));
|
|
|
|
assert!(matches!(subexprs[1], &Expr::FullCellPath(..)));
|
|
} else {
|
|
panic!("Not an expression")
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
pub fn parse_string_interpolation_backslash_count_reset_by_expression() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
b"$\"\\(1 + 3)\\(7 - 5)\"",
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
assert!(err.is_none());
|
|
|
|
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,
|
|
);
|
|
|
|
let (_block, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
br#"
|
|
$"(($foo))"
|
|
"#,
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
assert!(err.is_none());
|
|
}
|
|
|
|
#[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,
|
|
);
|
|
|
|
let (_block, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
br#"
|
|
$"Hello ($foo.bar)"
|
|
"#,
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
assert!(err.is_none());
|
|
}
|
|
}
|
|
}
|
|
|
|
mod range {
|
|
use super::*;
|
|
use nu_protocol::ast::{RangeInclusion, RangeOperator};
|
|
|
|
#[test]
|
|
fn parse_inclusive_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0..10", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_exclusive_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0..<10", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::RightExclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_reverse_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"10..0", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_subexpression_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"(3 - 3)..<(8 + 2)", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::RightExclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_variable_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_decl(Box::new(Let));
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"let a = 2; $a..10", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 2);
|
|
|
|
let expressions = &block[1];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_subexpression_variable_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
working_set.add_decl(Box::new(Let));
|
|
|
|
let (block, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
b"let a = 2; $a..<($a + 10)",
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 2);
|
|
|
|
let expressions = &block[1];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::RightExclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_right_unbounded_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"0..", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
None,
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_left_unbounded_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"..10", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
None,
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_negative_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"-10..-3", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
None,
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn parse_float_range() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (block, err) = parse(&mut working_set, None, b"2.0..4.0..10.0", true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 1);
|
|
|
|
let expressions = &block[0];
|
|
assert_eq!(expressions.len(), 1);
|
|
assert!(matches!(
|
|
expressions[0],
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Range(
|
|
Some(_),
|
|
Some(_),
|
|
Some(_),
|
|
RangeOperator {
|
|
inclusion: RangeInclusion::Inclusive,
|
|
..
|
|
}
|
|
),
|
|
..
|
|
}
|
|
)
|
|
))
|
|
}
|
|
|
|
#[test]
|
|
fn bad_parse_does_crash() {
|
|
let engine_state = EngineState::new();
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
|
|
let (_, err) = parse(&mut working_set, None, b"(0)..\"a\"", true, &[]);
|
|
|
|
assert!(err.is_some());
|
|
}
|
|
}
|
|
|
|
#[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_type(Type::Any)
|
|
.output_type(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_type(Type::Custom("custom".into()))
|
|
.output_type(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_type(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_type(Type::Custom("custom".into()))
|
|
.output_type(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_type(Type::Custom("custom".into()))
|
|
.output_type(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::Expression, "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::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, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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::Any)
|
|
.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); $a | agg sum"#;
|
|
|
|
let (block, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
assert_eq!(block.len(), 3);
|
|
|
|
let expressions = &block[2];
|
|
match &expressions[1] {
|
|
PipelineElement::Expression(
|
|
_,
|
|
Expression {
|
|
expr: Expr::Call(call),
|
|
..
|
|
},
|
|
) => {
|
|
let expected_id = working_set
|
|
.find_decl(b"agg", &Type::Custom("custom".into()))
|
|
.unwrap();
|
|
assert_eq!(call.decl_id, expected_id)
|
|
}
|
|
_ => panic!("Expected expression Call not found"),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn stored_variable_operation_test() {
|
|
let mut engine_state = EngineState::new();
|
|
add_declarations(&mut engine_state);
|
|
|
|
let mut working_set = StateWorkingSet::new(&engine_state);
|
|
let input = r#"let a = (ls | to-custom | group-by name other); ($a + $a) | agg sum"#;
|
|
|
|
let (block, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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::Any).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, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none());
|
|
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, err) = parse(&mut working_set, None, input.as_bytes(), true, &[]);
|
|
|
|
assert!(err.is_none(), "testing: {input}");
|
|
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);
|
|
let (_, err) = parse(
|
|
&mut working_set,
|
|
None,
|
|
b"if false { 'a' } else { $foo }",
|
|
true,
|
|
&[],
|
|
);
|
|
|
|
let err = err.unwrap();
|
|
|
|
assert!(matches!(err, ParseError::VariableNotFound(_)));
|
|
}
|
|
}
|