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use crate::{
exec::Executable,
syntax::ast::node::{join_nodes, FormalParameter, Node, StatementList},
BoaProfiler, Context, JsResult, JsValue,
};
use gc::{Finalize, Trace};
use std::fmt;
#[cfg(feature = "deser")]
use serde::{Deserialize, Serialize};
#[cfg_attr(feature = "deser", derive(Serialize, Deserialize))]
#[derive(Clone, Debug, Trace, Finalize, PartialEq)]
pub struct AsyncFunctionDecl {
name: Option<Box<str>>,
parameters: Box<[FormalParameter]>,
body: StatementList,
}
impl AsyncFunctionDecl {
pub(in crate::syntax) fn new<N, P, B>(name: N, parameters: P, body: B) -> Self
where
N: Into<Option<Box<str>>>,
P: Into<Box<[FormalParameter]>>,
B: Into<StatementList>,
{
Self {
name: name.into(),
parameters: parameters.into(),
body: body.into(),
}
}
pub fn name(&self) -> Option<&str> {
self.name.as_deref()
}
pub fn parameters(&self) -> &[FormalParameter] {
&self.parameters
}
pub fn body(&self) -> &[Node] {
self.body.items()
}
pub(in crate::syntax::ast::node) fn display(
&self,
f: &mut fmt::Formatter<'_>,
indentation: usize,
) -> fmt::Result {
match &self.name {
Some(name) => write!(f, "async function {}(", name)?,
None => write!(f, "async function (")?,
}
join_nodes(f, &self.parameters)?;
if self.body().is_empty() {
f.write_str(") {}")
} else {
f.write_str(") {\n")?;
self.body.display(f, indentation + 1)?;
write!(f, "{}}}", " ".repeat(indentation))
}
}
}
impl Executable for AsyncFunctionDecl {
fn run(&self, _: &mut Context) -> JsResult<JsValue> {
let _timer = BoaProfiler::global().start_event("AsyncFunctionDecl", "exec");
Ok(JsValue::undefined())
}
}
impl From<AsyncFunctionDecl> for Node {
fn from(decl: AsyncFunctionDecl) -> Self {
Self::AsyncFunctionDecl(decl)
}
}
impl fmt::Display for AsyncFunctionDecl {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.display(f, 0)
}
}