From f726499aa56b0b35d087d7fc25e7b8c11f0238b6 Mon Sep 17 00:00:00 2001
From: Roman Cinis <52065414+tsinis@users.noreply.github.com>
Date: Fri, 27 Mar 2026 09:10:10 +0100
Subject: [PATCH] extension_api: Expose hard_tabs in LanguageSettings

Add hard_tabs field to LanguageSettings and include it in the
serialization of language settings for extensions.
Reference: https://github.com/zed-industries/zed/issues/21822#issuecomment-4139809956
---
 crates/extension_api/wit/since_v0.8.0/settings.rs       | 2 ++
 crates/extension_host/src/wasm_host/wit/since_v0_8_0.rs | 1 +
 2 files changed, 3 insertions(+)

diff --git a/crates/extension_api/wit/since_v0.8.0/settings.rs b/crates/extension_api/wit/since_v0.8.0/settings.rs
index 7c77dc79baf7ab..0f8d2c52b2cf81 100644
--- a/crates/extension_api/wit/since_v0.8.0/settings.rs
+++ b/crates/extension_api/wit/since_v0.8.0/settings.rs
@@ -6,6 +6,8 @@ use std::{collections::HashMap, num::NonZeroU32};
 pub struct LanguageSettings {
     /// How many columns a tab should occupy.
     pub tab_size: NonZeroU32,
+    /// Whether to indent with hard tabs (true) or spaces (false).
+    pub hard_tabs: bool,
     /// The preferred line length (column at which to wrap).
     pub preferred_line_length: u32,
 }
diff --git a/crates/extension_host/src/wasm_host/wit/since_v0_8_0.rs b/crates/extension_host/src/wasm_host/wit/since_v0_8_0.rs
index 15e5ff94062094..25cd0c2d368274 100644
--- a/crates/extension_host/src/wasm_host/wit/since_v0_8_0.rs
+++ b/crates/extension_host/src/wasm_host/wit/since_v0_8_0.rs
@@ -968,6 +968,7 @@ impl ExtensionImports for WasmState {
                         );
                         Ok(serde_json::to_string(&settings::LanguageSettings {
                             tab_size: settings.tab_size,
+                            hard_tabs: settings.hard_tabs,
                             preferred_line_length: settings.preferred_line_length,
                         })?)
                     }