still not working

crates/nu-command/src/math/abs.rs

@@ -17,33 +17,36 @@ impl Command for SubCommand {
         "Returns absolute values of a list of numbers"
     }
 
-    fn run(&self, context: &EvaluationContext, call: &Call, input: Value) -> Result<Value, ShellError> {
+    fn run(&self, _context: &EvaluationContext, call: &Call, input: Value) -> Result<Value, ShellError> {
-        let mapped = input.map(move |val| match val.value {
+        let head = call.head;
+        input.map(head, move |val| match val {
             Value::Int { val, span } => Value::int(val.abs(), span),
             Value::Float { val, span } => Value::Float{val: val.abs(), span: span},
             Value::Duration { val, span } => Value::Duration{val: val.abs(), span: span},
-            other => abs_default(other)?,
+            other => abs_default(other, head),
-        });
+        })
-        Ok(mapped)
     }
 
     fn examples(&self) -> Vec<Example> {
         vec![Example {
             description: "Get absolute of each value in a list of numbers",
             example: "echo [-50 25] | math abs",
-            result: Some(vec![
+            result: Some(Value:: List {
+                vals: vec![
                     Value::test_int(50),
                     Value::test_int(25),
-            ]),
+                ],
+                span: Span::unknown(),
+            }),
         }]
     }
 }
 
-fn abs_default(_: Value) -> Result<Value, ShellError> {
+fn abs_default(_: Value, head: Span) -> Value {
-    Value::Error(ShellError::unexpected(
+    Value::Error {error: ShellError::UnsupportedInput(
-        "Only numerical values are supported",
+        String::from("Only numerical values are supported"),
-    ))
+        head
-    .into()
+    )}
 }
 
 #[cfg(test)]

crates/nu-command/src/math/mod.rs

@@ -1,3 +1,3 @@
-pub mod abs;
+mod abs;
 
 pub use abs::SubCommand as MathAbs;