pub async fn perform_assignment(
env: &mut Env,
assign: &Assign,
scope: Scope,
export: bool,
xtrace: Option<&mut XTrace>,
) -> Result<Option<ExitStatus>>Expand description
Performs an assignment.
This function expands the value and then assigns it to the environment. The return value is the exit status of the last command substitution performed during the expansion of the assigned value, if any
If xtrace is Some instance of XTrace, the expanded assignment word is
written to its assignments buffer.