Fix an issue with editorconfig tab_size (#13216)

Author: Colengms

Extension/src/LanguageServer/client.ts

@@ -2914,16 +2914,22 @@ export class DefaultClient implements Client {
             const settings: CppSettings = new CppSettings(this.RootUri);
             if (settings.useVcFormat(editor.document)) {
                 const editorConfigSettings: any = getEditorConfigSettings(editor.document.uri.fsPath);
-                if (editorConfigSettings.indent_style === "space" || editorConfigSettings.indent_style === "tab") {
-                    editor.options.insertSpaces = editorConfigSettings.indent_style === "space";
+                if (editorConfigSettings.indent_style === "tab") {
+                    editor.options.insertSpaces = false;
+                } else if (editorConfigSettings.indent_style === "space") {
+                    editor.options.insertSpaces = true;
+                }
+                if (editorConfigSettings.indent_size !== undefined) {
                     if (editorConfigSettings.indent_size === "tab") {
-                        if (!editorConfigSettings.tab_width !== undefined) {
-                            editor.options.tabSize = editorConfigSettings.tab_width;
-                        }
-                    } else if (editorConfigSettings.indent_size !== undefined) {
+                        editor.options.indentSize = "tabSize";
+                    } else {
+                        editor.options.indentSize = editorConfigSettings.indent_size;
                         editor.options.tabSize = editorConfigSettings.indent_size;
                     }
                 }
+                if (editorConfigSettings.tab_width !== undefined) {
+                    editor.options.tabSize = editorConfigSettings.tab_width;
+                }
                 if (editorConfigSettings.end_of_line !== undefined) {
                     void editor.edit((edit) => {
                         edit.setEndOfLine(editorConfigSettings.end_of_line === "lf" ? vscode.EndOfLine.LF : vscode.EndOfLine.CRLF);