Add an alias denylist for expansions (#4871)

crates/nu-cli/src/commands.rs

@@ -31,7 +31,7 @@ pub fn evaluate_commands(
             (commands.item.as_bytes(), commands.span.start)
         };
 
-        let (output, err) = parse(&mut working_set, None, input, false);
+        let (output, err) = parse(&mut working_set, None, input, false, &[]);
         if let Some(err) = err {
             report_error(&working_set, &err);
 

crates/nu-cli/src/completions.rs

@@ -206,7 +206,13 @@ impl NuCompleter {
         let mut line = line.to_string();
         line.insert(pos, 'a');
         let pos = offset + pos;
-        let (output, _err) = parse(&mut working_set, Some("completer"), line.as_bytes(), false);
+        let (output, _err) = parse(
+            &mut working_set,
+            Some("completer"),
+            line.as_bytes(),
+            false,
+            &[],
+        );
 
         for pipeline in output.pipelines.into_iter() {
             for expr in pipeline.expressions {

crates/nu-cli/src/eval_file.rs

@@ -36,7 +36,7 @@ pub fn evaluate_file(
     let mut working_set = StateWorkingSet::new(engine_state);
     trace!("parsing file: {}", path);
 
-    let _ = parse(&mut working_set, Some(&path), &file, false);
+    let _ = parse(&mut working_set, Some(&path), &file, false, &[]);
 
     if working_set.find_decl(b"main").is_some() {
         let args = format!("main {}", args.join(" "));

crates/nu-cli/src/prompt_update.rs

@@ -104,7 +104,7 @@ fn get_prompt_string(
             }
             Value::String { val: source, .. } => {
                 let mut working_set = StateWorkingSet::new(engine_state);
-                let (block, _) = parse(&mut working_set, None, source.as_bytes(), true);
+                let (block, _) = parse(&mut working_set, None, source.as_bytes(), true, &[]);
                 // Use eval_subexpression to force a redirection of output, so we can use everything in prompt
                 let ret_val = eval_subexpression(
                     engine_state,

crates/nu-cli/src/syntax_highlight.rs

@@ -17,7 +17,7 @@ impl Highlighter for NuHighlighter {
 
         let (shapes, global_span_offset) = {
             let mut working_set = StateWorkingSet::new(&self.engine_state);
-            let (block, _) = parse(&mut working_set, None, line.as_bytes(), false);
+            let (block, _) = parse(&mut working_set, None, line.as_bytes(), false, &[]);
 
             let shapes = flatten_block(&working_set, &block);
             (shapes, self.engine_state.next_span_start())

crates/nu-cli/src/util.rs

@@ -287,6 +287,7 @@ pub fn eval_source(
             Some(fname), // format!("entry #{}", entry_num)
             source,
             false,
+            &[],
         );
         if let Some(err) = err {
             report_error(&working_set, &err);

crates/nu-cli/src/validation.rs

@@ -9,7 +9,7 @@ pub struct NuValidator {
 impl Validator for NuValidator {
     fn validate(&self, line: &str) -> ValidationResult {
         let mut working_set = StateWorkingSet::new(&self.engine_state);
-        let (_, err) = parse(&mut working_set, None, line.as_bytes(), false);
+        let (_, err) = parse(&mut working_set, None, line.as_bytes(), false, &[]);
 
         if matches!(err, Some(ParseError::UnexpectedEof(..))) {
             ValidationResult::Incomplete