++= appendAssign operator (#7346) (#7354)

# Description Closes https://github.com/nushell/nushell/issues/7346 # Tests + Formatting ``` > mut a = [1 2 3] > $a ++= [4 5 6] > $a [1 2 3 4 5 6] ```
2022-12-09 16:20:58 +00:00
parent fc5fe4b445
commit b56ad92e25
7 changed files with 124 additions and 0 deletions
--- a/crates/nu-parser/src/parser.rs
+++ b/crates/nu-parser/src/parser.rs
@ -4429,6 +4429,7 @@ pub fn parse_operator(
    let operator = match contents {
        b"=" => Operator::Assignment(Assignment::Assign),
        b"+=" => Operator::Assignment(Assignment::PlusAssign),
+        b"++=" => Operator::Assignment(Assignment::AppendAssign),
        b"-=" => Operator::Assignment(Assignment::MinusAssign),
        b"*=" => Operator::Assignment(Assignment::MultiplyAssign),
        b"/=" => Operator::Assignment(Assignment::DivideAssign),