use crate::prelude::*;
use crate::utils::{needs_binary_like_parentheses, AnyJsBinaryLikeExpression};
use crate::parentheses::NeedsParentheses;
use biome_js_syntax::{JsInstanceofExpression, JsSyntaxNode};
#[derive(Debug, Clone, Default)]
pub(crate) struct FormatJsInstanceofExpression;
impl FormatNodeRule<JsInstanceofExpression> for FormatJsInstanceofExpression {
fn fmt_fields(
&self,
node: &JsInstanceofExpression,
formatter: &mut JsFormatter,
) -> FormatResult<()> {
AnyJsBinaryLikeExpression::JsInstanceofExpression(node.clone()).fmt(formatter)
}
fn needs_parentheses(&self, item: &JsInstanceofExpression) -> bool {
item.needs_parentheses()
}
}
impl NeedsParentheses for JsInstanceofExpression {
fn needs_parentheses_with_parent(&self, parent: &JsSyntaxNode) -> bool {
needs_binary_like_parentheses(&AnyJsBinaryLikeExpression::from(self.clone()), parent)
}
}
#[cfg(test)]
mod tests {
use crate::{assert_needs_parentheses, assert_not_needs_parentheses};
use biome_js_syntax::{JsFileSource, JsInstanceofExpression};
#[test]
fn needs_parentheses() {
assert_needs_parentheses!(
"class X extends (a instanceof b) {}",
JsInstanceofExpression
);
assert_needs_parentheses!("(a instanceof B) as number", JsInstanceofExpression);
assert_needs_parentheses!("<number>(a instanceof B)", JsInstanceofExpression);
assert_needs_parentheses!("!(a instanceof B)", JsInstanceofExpression);
assert_needs_parentheses!("await (a instanceof B)", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B)!", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B)()", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B)?.()", JsInstanceofExpression);
assert_needs_parentheses!("new (a instanceof B)()", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B)`template`", JsInstanceofExpression);
assert_needs_parentheses!("[...(a instanceof B)]", JsInstanceofExpression);
assert_needs_parentheses!("({...(a instanceof B)})", JsInstanceofExpression);
assert_needs_parentheses!(
"<test {...(a instanceof B)} />",
JsInstanceofExpression,
JsFileSource::tsx()
);
assert_needs_parentheses!(
"<test>{...(a instanceof B)}</test>",
JsInstanceofExpression,
JsFileSource::tsx()
);
assert_needs_parentheses!("(a instanceof B).member", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B)[member]", JsInstanceofExpression);
assert_not_needs_parentheses!("object[a instanceof B]", JsInstanceofExpression);
assert_needs_parentheses!("(a instanceof B) + c", JsInstanceofExpression);
assert_not_needs_parentheses!("a instanceof B > c", JsInstanceofExpression);
assert_not_needs_parentheses!("a instanceof B in c", JsInstanceofExpression);
assert_not_needs_parentheses!("a instanceof B instanceof c", JsInstanceofExpression[0]);
assert_not_needs_parentheses!("a instanceof B instanceof c", JsInstanceofExpression[1]);
}
}