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use crate::{
builtins::iterable,
exec::Executable,
exec::InterpreterState,
gc::{Finalize, Trace},
syntax::ast::node::{join_nodes, Node},
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 Call {
expr: Box<Node>,
args: Box<[Node]>,
}
impl Call {
pub fn new<E, A>(expr: E, args: A) -> Self
where
E: Into<Node>,
A: Into<Box<[Node]>>,
{
Self {
expr: Box::new(expr.into()),
args: args.into(),
}
}
pub fn expr(&self) -> &Node {
&self.expr
}
pub fn args(&self) -> &[Node] {
&self.args
}
}
impl Executable for Call {
fn run(&self, context: &mut Context) -> JsResult<JsValue> {
let _timer = BoaProfiler::global().start_event("Call", "exec");
let (this, func) = match self.expr() {
Node::GetConstField(ref get_const_field) => {
let mut obj = get_const_field.obj().run(context)?;
if !obj.is_object() {
obj = JsValue::Object(obj.to_object(context)?);
}
(
obj.clone(),
obj.get_field(get_const_field.field(), context)?,
)
}
Node::GetField(ref get_field) => {
let mut obj = get_field.obj().run(context)?;
if !obj.is_object() {
obj = JsValue::Object(obj.to_object(context)?);
}
let field = get_field.field().run(context)?;
(
obj.clone(),
obj.get_field(field.to_property_key(context)?, context)?,
)
}
_ => (
context.global_object().into(),
self.expr().run(context)?,
),
};
let mut v_args = Vec::with_capacity(self.args().len());
for arg in self.args() {
if let Node::Spread(ref x) = arg {
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;
v_args.push(next_value);
}
break; } else {
v_args.push(arg.run(context)?);
}
}
let fnct_result = context.call(&func, &this, &v_args);
context
.executor()
.set_current_state(InterpreterState::Executing);
fnct_result
}
}
impl fmt::Display for Call {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}(", self.expr)?;
join_nodes(f, &self.args)?;
f.write_str(")")
}
}
impl From<Call> for Node {
fn from(call: Call) -> Self {
Self::Call(call)
}
}