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Add additional assignment operators (#7102)

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JT
2022-11-12 07:50:43 +13:00
committed by GitHub
parent 69b089845c
commit c1105e945e
6 changed files with 84 additions and 4 deletions
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22
crates/nu-engine/src/eval.rs
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@ -434,9 +434,29 @@ pub fn eval_expression(
Bits::ShiftRight => lhs.bit_shr(op_span, &rhs, expr.span),
}
}
Operator::Assignment(Assignment::Assign) => {
Operator::Assignment(assignment) => {
let rhs = eval_expression(engine_state, stack, rhs)?;
let rhs = match assignment {
Assignment::Assign => rhs,
Assignment::PlusAssign => {
let lhs = eval_expression(engine_state, stack, lhs)?;
lhs.add(op_span, &rhs, op_span)?
}
Assignment::MinusAssign => {
let lhs = eval_expression(engine_state, stack, lhs)?;
lhs.sub(op_span, &rhs, op_span)?
}
Assignment::MultiplyAssign => {
let lhs = eval_expression(engine_state, stack, lhs)?;
lhs.mul(op_span, &rhs, op_span)?
}
Assignment::DivideAssign => {
let lhs = eval_expression(engine_state, stack, lhs)?;
lhs.div(op_span, &rhs, op_span)?
}
};
match &lhs.expr {
Expr::Var(var_id) | Expr::VarDecl(var_id) => {
let var_info = engine_state.get_var(*var_id);