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use super::{join_nodes, Node};
use crate::{
builtins::{iterable, Array},
exec::Executable,
gc::{Finalize, Trace},
BoaProfiler, Context, JsResult, JsValue,
};
use std::fmt;
#[cfg(feature = "deser")]
use serde::{Deserialize, Serialize};
#[cfg(test)]
mod tests;
#[cfg_attr(feature = "deser", derive(Serialize, Deserialize))]
#[derive(Clone, Debug, Trace, Finalize, PartialEq)]
pub struct ArrayDecl {
#[cfg_attr(feature = "deser", serde(flatten))]
arr: Box<[Node]>,
}
impl Executable for ArrayDecl {
fn run(&self, context: &mut Context) -> JsResult<JsValue> {
let _timer = BoaProfiler::global().start_event("ArrayDecl", "exec");
let array = Array::new_array(context);
let mut elements = Vec::new();
for elem in self.as_ref() {
if let Node::Spread(ref x) = elem {
let val = x.run(context)?;
let iterator_record = iterable::get_iterator(&val, context)?;
loop {
let next = iterator_record.next(context)?;
if next.done {
break;
}
let next_value = next.value;
elements.push(next_value);
}
} else {
elements.push(elem.run(context)?);
}
}
Array::add_to_array_object(&array, &elements, context)?;
Ok(array)
}
}
impl AsRef<[Node]> for ArrayDecl {
fn as_ref(&self) -> &[Node] {
&self.arr
}
}
impl<T> From<T> for ArrayDecl
where
T: Into<Box<[Node]>>,
{
fn from(decl: T) -> Self {
Self { arr: decl.into() }
}
}
impl fmt::Display for ArrayDecl {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str("[")?;
join_nodes(f, &self.arr)?;
f.write_str("]")
}
}
impl From<ArrayDecl> for Node {
fn from(arr: ArrayDecl) -> Self {
Self::ArrayDecl(arr)
}
}