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use crate::parser::tests::check_script_parser;
use boa_ast::{
Declaration, Span, Statement, StatementList, StatementListItem,
declaration::{LexicalDeclaration, Variable},
expression::{Identifier, literal::Literal},
function::{FormalParameterList, FunctionBody, FunctionExpression},
statement::Return,
};
use boa_interner::Interner;
use boa_macros::utf16;
use indoc::indoc;
const PSEUDO_LINEAR_POS: boa_ast::LinearPosition = boa_ast::LinearPosition::new(0);
/// Checks async expression parsing.
#[test]
fn check_function_expression() {
let interner = &mut Interner::default();
let add = interner.get_or_intern_static("add", utf16!("add"));
check_script_parser(
indoc! {"
const add = function() {
return 1;
};
"},
vec![
Declaration::Lexical(LexicalDeclaration::Const(
vec![Variable::from_identifier(
Identifier::new(add, Span::new((1, 7), (1, 10))),
Some(
FunctionExpression::new(
Some(Identifier::new(add, Span::new((1, 7), (1, 10)))),
FormalParameterList::default(),
FunctionBody::new(
StatementList::new(
[StatementListItem::Statement(
Statement::Return(Return::new(Some(
Literal::new(1, Span::new((2, 12), (2, 13))).into(),
)))
.into(),
)],
PSEUDO_LINEAR_POS,
false,
),
Span::new((1, 24), (3, 2)),
),
None,
false,
Span::new((1, 13), (3, 2)),
)
.into(),
),
)]
.try_into()
.unwrap(),
))
.into(),
],
interner,
);
}
#[test]
fn check_nested_function_expression() {
let interner = &mut Interner::default();
let a = interner.get_or_intern_static("a", utf16!("a"));
let b = interner.get_or_intern_static("b", utf16!("b"));
check_script_parser(
indoc! {"
const a = function() {
const b = function() {
return 1;
};
};
"},
vec![
Declaration::Lexical(LexicalDeclaration::Const(
vec![Variable::from_identifier(
Identifier::new(a, Span::new((1, 7), (1, 8))),
Some(
FunctionExpression::new(
Some(Identifier::new(a, Span::new((1, 7), (1, 8)))),
FormalParameterList::default(),
FunctionBody::new(
StatementList::new(
[Declaration::Lexical(LexicalDeclaration::Const(
vec![Variable::from_identifier(
Identifier::new(b, Span::new((2, 11), (2, 12))),
Some(
FunctionExpression::new(
Some(Identifier::new(
b,
Span::new((2, 11), (2, 12)),
)),
FormalParameterList::default(),
FunctionBody::new(
StatementList::new(
[StatementListItem::Statement(
Statement::Return(Return::new(
Some(
Literal::new(
1,
Span::new(
(3, 16),
(3, 17),
),
)
.into(),
),
))
.into(),
)],
PSEUDO_LINEAR_POS,
false,
),
Span::new((2, 26), (4, 6)),
),
None,
false,
Span::new((2, 15), (4, 6)),
)
.into(),
),
)]
.try_into()
.unwrap(),
))
.into()],
PSEUDO_LINEAR_POS,
false,
),
Span::new((1, 22), (5, 2)),
),
None,
false,
Span::new((1, 11), (5, 2)),
)
.into(),
),
)]
.try_into()
.unwrap(),
))
.into(),
],
interner,
);
}
#[test]
fn check_function_non_reserved_keyword() {
macro_rules! genast {
(
$keyword:literal,
$interner:expr,
function: $function_span:expr,
name: $name_span:expr,
body: $body_span:expr,
literal: $literal_span:expr
) => {
vec![Declaration::Lexical(LexicalDeclaration::Const(
vec![Variable::from_identifier(
Identifier::new($interner.get_or_intern_static("add", utf16!("add")), Span::new((1, 7), (1, 10))),
Some(
FunctionExpression::new(
Some(Identifier::new($interner.get_or_intern_static($keyword, utf16!($keyword)), $name_span)),
FormalParameterList::default(),
FunctionBody::new(
StatementList::new(
[StatementListItem::Statement(
Statement::Return(
Return::new(
Some(Literal::new(1, $literal_span).into())
)
).into()
)],
PSEUDO_LINEAR_POS,
false,
),
$body_span,
),
None,
true,
$function_span,
)
.into(),
),
)]
.try_into().unwrap(),
))
.into()]
};
}
let interner = &mut Interner::default();
let ast = genast!(
"as",
interner,
function: Span::new((1, 13), (1, 40)),
name: Span::new((1, 22), (1, 24)),
body: Span::new((1, 27), (1, 40)),
literal: Span::new((1, 36), (1, 37))
);
check_script_parser("const add = function as() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"async",
interner,
function: Span::new((1, 13), (1, 43)),
name: Span::new((1, 22), (1, 27)),
body: Span::new((1, 30), (1, 43)),
literal: Span::new((1, 39), (1, 40))
);
check_script_parser("const add = function async() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"from",
interner,
function: Span::new((1, 13), (1, 42)),
name: Span::new((1, 22), (1, 26)),
body: Span::new((1, 29), (1, 42)),
literal: Span::new((1, 38), (1, 39))
);
check_script_parser("const add = function from() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"get",
interner,
function: Span::new((1, 13), (1, 41)),
name: Span::new((1, 22), (1, 25)),
body: Span::new((1, 28), (1, 41)),
literal: Span::new((1, 37), (1, 38))
);
check_script_parser("const add = function get() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"meta",
interner,
function: Span::new((1, 13), (1, 42)),
name: Span::new((1, 22), (1, 26)),
body: Span::new((1, 29), (1, 42)),
literal: Span::new((1, 38), (1, 39))
);
check_script_parser("const add = function meta() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"of",
interner,
function: Span::new((1, 13), (1, 40)),
name: Span::new((1, 22), (1, 24)),
body: Span::new((1, 27), (1, 40)),
literal: Span::new((1, 36), (1, 37))
);
check_script_parser("const add = function of() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"set",
interner,
function: Span::new((1, 13), (1, 41)),
name: Span::new((1, 22), (1, 25)),
body: Span::new((1, 28), (1, 41)),
literal: Span::new((1, 37), (1, 38))
);
check_script_parser("const add = function set() { return 1; };", ast, interner);
let interner = &mut Interner::default();
let ast = genast!(
"target",
interner,
function: Span::new((1, 13), (1, 44)),
name: Span::new((1, 22), (1, 28)),
body: Span::new((1, 31), (1, 44)),
literal: Span::new((1, 40), (1, 41))
);
check_script_parser(
"const add = function target() { return 1; };",
ast,
interner,
);
}