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Declare input and output types of commands (#6796)

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* Add failing test that list of ints and floats is List<Number>

* Start defining subtype relation

* Make it possible to declare input and output types for commands

- Enforce them in tests

* Declare input and output types of commands

* Add formatted signatures to `help commands` table

* Revert SyntaxShape::Table -> Type::Table change

* Revert unnecessary derive(Hash) on SyntaxShape

Co-authored-by: JT <547158+jntrnr@users.noreply.github.com>
This commit is contained in:
Dan Davison
2022-11-09 16:55:05 -05:00
committed by GitHub
parent f878276de7
commit df94052180
238 changed files with 2315 additions and 756 deletions
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70
crates/nu-protocol/src/value/mod.rs
View File

@ -399,7 +399,11 @@ impl Value {
match &ty {
Some(x) => {
if &val_ty != x {
ty = Some(Type::Any)
if x.is_numeric() && val_ty.is_numeric() {
ty = Some(Type::Number)
} else {
ty = Some(Type::Any)
}
}
}
None => ty = Some(val_ty),
@ -3181,4 +3185,68 @@ mod tests {
assert!(!one_column_with_empty_string_and_one_value_with_a_string.is_empty());
}
}
mod get_type {
use crate::Type;
use super::*;
#[test]
fn test_list() {
let list_of_ints = Value::List {
vals: vec![Value::Int {
val: 0,
span: Span::unknown(),
}],
span: Span::unknown(),
};
let list_of_floats = Value::List {
vals: vec![Value::Float {
val: 0.0,
span: Span::unknown(),
}],
span: Span::unknown(),
};
let list_of_ints_and_floats = Value::List {
vals: vec![
Value::Int {
val: 0,
span: Span::unknown(),
},
Value::Float {
val: 0.0,
span: Span::unknown(),
},
],
span: Span::unknown(),
};
let list_of_ints_and_floats_and_bools = Value::List {
vals: vec![
Value::Int {
val: 0,
span: Span::unknown(),
},
Value::Float {
val: 0.0,
span: Span::unknown(),
},
Value::Bool {
val: false,
span: Span::unknown(),
},
],
span: Span::unknown(),
};
assert_eq!(list_of_ints.get_type(), Type::List(Box::new(Type::Int)));
assert_eq!(list_of_floats.get_type(), Type::List(Box::new(Type::Float)));
assert_eq!(
list_of_ints_and_floats_and_bools.get_type(),
Type::List(Box::new(Type::Any))
);
assert_eq!(
list_of_ints_and_floats.get_type(),
Type::List(Box::new(Type::Number))
);
}
}
}