use super::expr::Expr;
use super::expr::InvalidArgumentError;
use super::unary_op::OneArgOp;
use super::unary_op::OneArgOpTryBuild;
use crate::has_opcode::HasStaticOpCode;
use crate::serialization::op_code::OpCode;
use crate::types::stype::SType;
#[derive(PartialEq, Eq, Debug, Clone)]
pub struct OptionGet {
pub input: Box<Expr>,
elem_tpe: SType,
}
impl OptionGet {
pub fn tpe(&self) -> SType {
self.elem_tpe.clone()
}
}
impl HasStaticOpCode for OptionGet {
const OP_CODE: OpCode = OpCode::OPTION_GET;
}
impl OneArgOp for OptionGet {
fn input(&self) -> &Expr {
&self.input
}
}
impl OneArgOpTryBuild for OptionGet {
fn try_build(input: Expr) -> Result<Self, InvalidArgumentError> {
match input.post_eval_tpe() {
SType::SOption(elem_tpe) => Ok(OptionGet {
input: Box::new(input),
elem_tpe: *elem_tpe,
}),
_ => Err(InvalidArgumentError(format!(
"expected OptionGet::input type to be SOption, got: {0:?}",
input.tpe(),
))),
}
}
}
#[cfg(test)]
#[cfg(feature = "arbitrary")]
#[allow(clippy::unwrap_used)]
mod tests {
use super::*;
use crate::mir::expr::Expr;
use crate::mir::extract_reg_as::ExtractRegisterAs;
use crate::mir::global_vars::GlobalVars;
use crate::serialization::sigma_serialize_roundtrip;
use crate::types::stype::SType;
#[test]
fn ser_roundtrip() {
let get_reg_expr: Expr = ExtractRegisterAs::new(
GlobalVars::SelfBox.into(),
0,
SType::SOption(SType::SLong.into()),
)
.unwrap()
.into();
let e: Expr = OptionGet::try_build(get_reg_expr).unwrap().into();
assert_eq![sigma_serialize_roundtrip(&e), e];
}
}