Move over some lambda tests

This commit is contained in:
Greg Shuflin 2021-10-30 20:27:16 -07:00
parent ea494bb328
commit 46fe03b43f
2 changed files with 135 additions and 90 deletions

View File

@ -85,6 +85,10 @@ macro_rules! qn {
};
}
fn int_anno() -> TypeIdentifier {
TypeIdentifier::Singleton(TypeSingletonName { name: rc("Int"), params: vec![] })
}
macro_rules! assert_ast {
($input:expr, $statements:expr) => {
let ast = parse($input).unwrap();
@ -325,6 +329,134 @@ fn for_expression() {
);
}
#[test]
fn lambda_expressions() {
use ExpressionKind::*;
assert_expr!(
r#"\(x) { x + 1}"#,
expr(Lambda {
params: vec![FormalParam { name: rc!(x), anno: None, default: None }],
type_anno: None,
body:
vec![stmt(StatementKind::Expression(binop("+", expr(Value(qn!(x))), expr(NatLiteral(1))))),]
.into()
})
);
assert_expr!(
r#"\ (x: Int, y) { a;b;c;}"#,
expr(Lambda {
params: vec![
FormalParam { name: rc!(x), anno: Some(int_anno()), default: None },
FormalParam { name: rc!(y), anno: None, default: None },
],
type_anno: None,
body: vec![
stmt(StatementKind::Expression(expr(Value(qn!(a))))),
stmt(StatementKind::Expression(expr(Value(qn!(b))))),
stmt(StatementKind::Expression(expr(Value(qn!(c))))),
]
.into()
})
);
assert_expr!(
r#"\(x){y}(1)"#,
expr(Call {
f: bx(expr(Lambda {
params: vec![FormalParam { name: rc!(x), anno: None, default: None },],
type_anno: None,
body: vec![stmt(StatementKind::Expression(expr(Value(qn!(y))))),].into()
})),
arguments: vec![InvocationArgument::Positional(expr(NatLiteral(1)))],
})
);
assert_expr!(
r#"\(x: Int): String { "q" }"#,
expr(Lambda {
params: vec![FormalParam { name: rc!(x), anno: Some(int_anno()), default: None },],
type_anno: Some(TypeIdentifier::Singleton(TypeSingletonName {
name: rc("String"),
params: vec![]
})),
body: vec![stmt(StatementKind::Expression(expr(StringLiteral(rc("q"))))),].into()
})
);
}
#[test]
fn single_param_lambda() {
use ExpressionKind::*;
assert_expr!(
r#"\x { x + 10 }"#,
expr(Lambda {
params: vec![FormalParam { name: rc!(x), anno: None, default: None },],
type_anno: None,
body: vec![stmt(StatementKind::Expression(binop(
"+",
expr(Value(qn!(x))),
expr(NatLiteral(10))
)))]
.into()
})
);
assert_expr!(
r#"\x: Int { x + 10 }"#,
expr(Lambda {
params: vec![FormalParam { name: rc!(x), anno: Some(int_anno()), default: None },],
type_anno: None,
body: vec![stmt(StatementKind::Expression(binop(
"+",
expr(Value(qn!(x))),
expr(NatLiteral(10))
)))]
.into()
})
);
}
#[test]
fn complex_lambdas() {
use ExpressionKind::*;
assert_ast! {
r#"fn wahoo() { let a = 10; \(x) { x + a } };
wahoo()(3) "#,
vec![
fn_decl(Signature { name: rc("wahoo"), operator: false, type_anno: None, params: vec![] },
vec![
decl(Declaration::Binding {
name: rc("a"),
constant: true,
type_anno: None,
expr: expr(NatLiteral(10))
}),
stmt(StatementKind::Expression(expr(Lambda {
params: vec![
FormalParam { name: rc("x"), default: None, anno: None }
],
type_anno: None,
body: vec![
stmt(StatementKind::Expression(binop("+", expr(Value(qn!(x))), expr(Value(qn!(a)))))),
].into()
}))),
].into()),
stmt(StatementKind::Expression(expr(Call {
f: bx(expr(Call {
f: bx(expr(Value(qn!(wahoo)))),
arguments: vec![] })),
arguments: vec![
InvocationArgument::Positional(expr(NatLiteral(3)))
]
})))
]
};
}
#[test]
fn reserved_words() {
assert_fail!("module::item::call()", "Expected an identifier, got Colon");
@ -532,7 +664,6 @@ fn functions_with_different_whitespace() {
#[test]
fn functions_with_default_args() {
use ExpressionKind::*;
let int_anno = TypeIdentifier::Singleton(TypeSingletonName { name: rc("Int"), params: vec![] });
assert_ast!(
"fn func(x: Int, y: Int = 4) { }",
@ -542,8 +673,8 @@ fn functions_with_default_args() {
operator: false,
type_anno: None,
params: vec![
FormalParam { name: rc("x"), anno: Some(int_anno.clone()), default: None },
FormalParam { name: rc("y"), anno: Some(int_anno), default: Some(expr(NatLiteral(4))) },
FormalParam { name: rc("x"), anno: Some(int_anno()), default: None },
FormalParam { name: rc("y"), anno: Some(int_anno()), default: Some(expr(NatLiteral(4))) },
],
},
vec![].into()

View File

@ -2,6 +2,7 @@
#![allow(clippy::upper_case_acronyms)]
#![allow(clippy::vec_init_then_push)]
use pretty_assertions::assert_eq;
use std::rc::Rc;
use crate::tokenizing::Location;
@ -87,10 +88,6 @@ macro_rules! ex {
};
}
macro_rules! inv {
($expr_type:expr) => { InvocationArgument::Positional($expr_type) }
}
macro_rules! exst {
($expr_type:expr) => { make_statement(StatementKind::Expression(Expression::new(Default::default(), $expr_type).into())) };
($expr_type:expr, $type_anno:expr) => { make_statement(StatementKind::Expression(Expression::with_anno(Default::default(), $expr_type, $type_anno).into())) };
@ -251,89 +248,6 @@ fn parsing_impls() {
}));
}
#[test]
fn parsing_lambdas() {
parse_test_wrap_ast! { r#"\(x) { x + 1}"#, exst!(
Lambda { params: vec![FormalParam { name: rc!(x), anno: None, default: None } ], type_anno: None, body: exst!(s "x + 1").into() }
)
}
parse_test_wrap_ast!(r#"\ (x: Int, y) { a;b;c;}"#,
exst!(Lambda {
params: vec![
FormalParam { name: rc!(x), anno: Some(ty!("Int")), default: None },
FormalParam { name: rc!(y), anno: None, default: None }
],
type_anno: None,
body: vec![exst!(s "a"), exst!(s "b"), exst!(s "c")].into()
})
);
parse_test_wrap_ast! { r#"\(x){y}(1)"#,
exst!(Call { f: bx!(ex!(
Lambda {
params: vec![
FormalParam { name: rc!(x), anno: None, default: None }
],
type_anno: None,
body: exst!(s "y").into() }
)),
arguments: vec![inv!(ex!(NatLiteral(1)))] })
};
parse_test_wrap_ast! {
r#"\(x: Int): String { "q" }"#,
exst!(Lambda {
params: vec![
FormalParam { name: rc!(x), anno: Some(ty!("Int")), default: None },
],
type_anno: Some(ty!("String")),
body: exst!(s r#""q""#).into()
})
}
}
#[test]
fn single_param_lambda() {
parse_test_wrap_ast! {
r"\x { x + 10 }",
exst!(Lambda {
params: vec![FormalParam { name: rc!(x), anno: None, default: None }],
type_anno: None,
body: exst!(s r"x + 10").into()
})
}
parse_test_wrap_ast! {
r"\x: Nat { x + 10 }",
exst!(Lambda {
params: vec![FormalParam { name: rc!(x), anno: Some(ty!("Nat")), default: None }],
type_anno: None,
body: exst!(s r"x + 10").into()
})
}
}
#[test]
fn more_advanced_lambdas() {
parse_test! {
r#"fn wahoo() { let a = 10; \(x) { x + a } };
wahoo()(3) "#,
AST {
id: Default::default(),
statements: vec![
exst!(s r"fn wahoo() { let a = 10; \(x) { x + a } }"),
exst! {
Call {
f: bx!(ex!(Call { f: bx!(ex!(val!("wahoo"))), arguments: vec![] })),
arguments: vec![inv!(ex!(NatLiteral(3)))],
}
}
].into()
}
}
}
#[test]
fn list_literals() {
parse_test_wrap_ast! {