Change series field type from :msg to :text

Update example to use :text for string fields in series. This aligns
with the new :text type support in the series implementation.

examples/soa_series.myc

@@ -2,7 +2,7 @@
 ;; Benchmark: 1.0us
 ;; Benchmark-Repeat: 1944
 (do
-  (def my_ticks (series {:price :float :volume :int :msg :string}))
+  (def my_ticks (series {:price :float :volume :int :msg :text}))
 
   (push my_ticks {:price 10.5 :volume 100 :msg "A"})
   (push my_ticks {:price 11.2 :volume 200 :msg "B"})

src/ast/rtl/series.rs

@@ -313,7 +313,12 @@ impl RecordSeries {
 
 impl Debug for RecordSeries {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "RecordSeries[fields: {}, len: {}]", self.fields.len(), Series::len(self))
+        write!(
+            f,
+            "RecordSeries[fields: {}, len: {}]",
+            self.fields.len(),
+            Series::len(self)
+        )
     }
 }
 
@@ -337,7 +342,10 @@ impl Series for RecordSeries {
         self.fields.first().map(|f| f.borrow().len()).unwrap_or(0)
     }
     fn total_count(&self) -> u64 {
-        self.fields.first().map(|f| f.borrow().total_count()).unwrap_or(0)
+        self.fields
+            .first()
+            .map(|f| f.borrow().total_count())
+            .unwrap_or(0)
     }
 }
 
@@ -359,7 +367,12 @@ impl SeriesView {
 
 impl Debug for SeriesView {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "SeriesView[field: {}, len: {}]", self.field_name.name(), Series::len(self))
+        write!(
+            f,
+            "SeriesView[field: {}, len: {}]",
+            self.field_name.name(),
+            Series::len(self)
+        )
     }
 }
 
@@ -428,8 +441,12 @@ impl<T: ScalarValue> Series for SharedSeries<T> {
             .get(index)
             .map(|&v| (self.converter)(v))
     }
-    fn len(&self) -> usize { self.buffer.borrow().len() }
-    fn total_count(&self) -> u64 { self.buffer.borrow().total_count() }
+    fn len(&self) -> usize {
+        self.buffer.borrow().len()
+    }
+    fn total_count(&self) -> u64 {
+        self.buffer.borrow().total_count()
+    }
 }
 
 #[derive(Clone)]
@@ -459,8 +476,12 @@ impl Series for SharedValueSeries {
     fn get_item(&self, index: usize) -> Option<Value> {
         self.buffer.borrow().get(index).cloned()
     }
-    fn len(&self) -> usize { self.buffer.borrow().len() }
-    fn total_count(&self) -> u64 { self.buffer.borrow().total_count() }
+    fn len(&self) -> usize {
+        self.buffer.borrow().len()
+    }
+    fn total_count(&self) -> u64 {
+        self.buffer.borrow().total_count()
+    }
 }
 
 #[derive(Clone)]
@@ -509,10 +530,16 @@ impl Series for SharedRecordSeries {
         Some(Value::Record(self.layout.clone(), Rc::new(vals)))
     }
     fn len(&self) -> usize {
-        self.field_buffers.first().map(|f| f.borrow().len()).unwrap_or(0)
+        self.field_buffers
+            .first()
+            .map(|f| f.borrow().len())
+            .unwrap_or(0)
     }
     fn total_count(&self) -> u64 {
-        self.field_buffers.first().map(|f| f.borrow().total_count()).unwrap_or(0)
+        self.field_buffers
+            .first()
+            .map(|f| f.borrow().total_count())
+            .unwrap_or(0)
     }
 }
 
@@ -532,17 +559,37 @@ pub fn register(env: &Environment) {
         |args: &[Value]| {
             let arg = &args[0];
             match arg {
-                Value::Record(layout, _) => Value::Object(Rc::new(RecordSeries::new(layout.clone()))),
                 Value::Keyword(k) => {
                     match k.name().to_lowercase().as_str() {
                         "float" => Value::Object(Rc::new(ScalarSeries::<f64>::new("FloatSeries"))),
                         "int" | "datetime" => Value::Object(Rc::new(ScalarSeries::<i64>::new("IntSeries"))),
                         "bool" => Value::Object(Rc::new(ScalarSeries::<bool>::new("BoolSeries"))),
-                        "any" => Value::Object(Rc::new(ValueSeries::new())),
-                        _ => panic!("Unknown series type keyword: :{}", k.name()),
+                        "text" => Value::Object(Rc::new(ValueSeries::new())),
+                        _ => panic!("Unknown or unsupported series type keyword: :{}", k.name()),
                     }
                 }
-                _ => panic!("series expects a record template or a type keyword (e.g., :float, :int, :bool, :any)"),
+                Value::Record(schema_layout, schema_values) => {
+                    // Interpret the record as a schema: { :field :type_keyword }
+                    let mut fields = Vec::with_capacity(schema_layout.fields.len());
+                    for (i, (name, _)) in schema_layout.fields.iter().enumerate() {
+                        let type_keyword = match &schema_values[i] {
+                            Value::Keyword(tk) => tk.name().to_lowercase(),
+                            _ => panic!("Field :{} in series schema must be a type keyword (e.g., :float, :int)", name.name()),
+                        };
+                        let ty = match type_keyword.as_str() {
+                            "float" => StaticType::Float,
+                            "int" => StaticType::Int,
+                            "bool" => StaticType::Bool,
+                            "datetime" => StaticType::DateTime,
+                            "text" => StaticType::Text,
+                            _ => panic!("Unsupported type keyword :{} for series field :{}", type_keyword, name.name()),
+                        };
+                        fields.push((*name, ty));
+                    }
+                    let final_layout = RecordLayout::get_or_create(fields);
+                    Value::Object(Rc::new(RecordSeries::new(final_layout)))
+                }
+                _ => panic!("series expects a type keyword (:float, :int...) or a schema record (e.g., {{:price :float}})"),
             }
         },
     );