Removed r.session.levelOfObjectDetail setting, and the legacy string-based expansion fallback

Author: Fred-Wu

CHANGELOG.md

@@ -10,8 +10,8 @@
 
 ### Maintenance
 
-* Removed the obsolete `r.session.objectLengthLimit` and `r.session.objectTimeout` settings.
-* Removed confirmed unused workspace viewer code.
+* Removed the obsolete `r.session.objectLengthLimit`, `r.session.objectTimeout`, and `r.session.levelOfObjectDetail` settings.
+* Removed the legacy string-based expansion fallback now that expandable objects provide explicit metadata.
 
 ## 3.0.7 - 2026-04-26
 

R/session/vsc.R

@@ -30,7 +30,6 @@ load_settings <- function() {
         vsc.use_httpgd = plot$useHttpgd,
         vsc.show_object_size = workspaceViewer$showObjectSize,
         vsc.rstudioapi = session$emulateRStudioAPI,
-        vsc.str.max.level = setting(session$levelOfObjectDetail, Minimal = 0, Normal = 1, Detailed = 2),
         vsc.globalenv = session$watchGlobalEnvironment,
         vsc.plot = setting(session$viewers$viewColumn$plot, Disable = FALSE),
         vsc.dev.args = plot$devArgs,

package.json

@@ -1646,21 +1646,6 @@
           "default": true,
           "markdownDescription": "Watch the global environment to provide hover, autocompletions, and workspace viewer information. Changes the option `vsc.globalenv` in R. Requires `#r.sessionWatcher#` to be set to `true`."
         },
-        "r.session.levelOfObjectDetail": {
-          "type": "string",
-          "markdownDescription": "How much of the object to show on hover, autocompletion, and in the workspace viewer? Changes the option `vsc.str.max.level` in R. Requires `#r.sessionWatcher#` to be set to `true`.",
-          "default": "Minimal",
-          "enum": [
-            "Minimal",
-            "Normal",
-            "Detailed"
-          ],
-          "enumDescriptions": [
-            "Display literal values and object types only.",
-            "Display the top level of list content, data frame column values, and example values.",
-            "Display the top two levels of list content, data frame column values, and example values. This option may cause notable delay after each user input in the terminal."
-          ]
-        },
         "r.session.emulateRStudioAPI": {
           "type": "boolean",
           "default": true,

src/workspaceViewer.ts

@@ -356,7 +356,7 @@ export class GlobalEnvItem extends TreeItem {
     ) {
         super(
             label,
-            GlobalEnvItem.setCollapsibleState(type, str, hasChildren)
+            GlobalEnvItem.setCollapsibleState(type, hasChildren)
         );
         this.treeLevel = treeLevel ?? TreeLevel.Scalar;
         this.priority = dim ? 1 : 0;
@@ -430,11 +430,9 @@ export class GlobalEnvItem extends TreeItem {
     in the futere for more tree levels.*/
     private static setCollapsibleState(
         type: string,
-        str: string,
         hasChildren?: boolean
     ): vscode.TreeItemCollapsibleState {
-        const expandable = hasChildren ?? str.includes('\n');
-        if (collapsibleTypes.includes(type) && expandable) {
+        if (collapsibleTypes.includes(type) && hasChildren) {
             return TreeItemCollapsibleState.Collapsed;
         } else {
             return TreeItemCollapsibleState.None;