Implemented code to find out if any comparison checks inside a select are true.

src/renderer/renderer.rs

@@ -528,10 +528,20 @@ impl<'a> DustRenderer<'a> {
                     None,
                     &parameterized_block.explicit_context,
                 );
+                let new_breadcrumbs_ref = new_breadcrumbs.as_ref().unwrap_or(breadcrumbs);
                 match &parameterized_block.contents {
                     None => return Ok("".to_owned()),
                     Some(body) => {
-                        let comparison_helpers = body.elements.iter().filter_map(|te| match te {
+                        let param_map = ParametersContext::new(
+                            self,
+                            breadcrumbs,
+                            &parameterized_block.params,
+                            None,
+                        );
+                        let are_any_checks_true = body
+                            .elements
+                            .iter()
+                            .filter_map(|te| match te {
                                 TemplateElement::TETag(dt) => match dt {
                                     DustTag::DTHelperEquals(_)
                                     | DustTag::DTHelperNotEquals(_)
@@ -542,7 +552,15 @@ impl<'a> DustRenderer<'a> {
                                     _ => None,
                                 },
                                 _ => None,
-                        });
+                            })
+                            .map(|dt| {
+                                self.perform_comparison_check(
+                                    dt,
+                                    new_breadcrumbs_ref,
+                                    Some(&param_map),
+                                )
+                            })
+                            .any(|check_result| check_result.unwrap_or(false));
                     }
                 }
             }