From 4f44375abd3d8a10ee2820db373d4992ab3df42b Mon Sep 17 00:00:00 2001
From: Max Brunsfeld <maxbrunsfeld@gmail.com>
Date: Wed, 28 Sep 2022 13:38:54 -0700
Subject: [PATCH] Make Buffer::language_at fall back to Buffer::language

For languages with no grammar (plain text), there
will be no layers.
---
 crates/language/src/buffer.rs     | 2 ++
 crates/language/src/language.rs   | 9 +++++++++
 crates/language/src/syntax_map.rs | 1 +
 3 files changed, 12 insertions(+)

diff --git a/crates/language/src/buffer.rs b/crates/language/src/buffer.rs
index 372f77cf2033a64b4ae65094299478270ed1df66..4ff1b002b0ba6f04cf1e27ff6c9e72469876ceed 100644
--- a/crates/language/src/buffer.rs
+++ b/crates/language/src/buffer.rs
@@ -648,6 +648,7 @@ impl Buffer {
             .layers_for_range(offset..offset, &self.text)
             .last()
             .map(|info| info.language.clone())
+            .or_else(|| self.language.clone())
     }
 
     pub fn parse_count(&self) -> usize {
@@ -1841,6 +1842,7 @@ impl BufferSnapshot {
             .layers_for_range(offset..offset, &self.text)
             .last()
             .map(|info| info.language)
+            .or(self.language.as_ref())
     }
 
     pub fn surrounding_word<T: ToOffset>(&self, start: T) -> (Range<usize>, Option<CharKind>) {
diff --git a/crates/language/src/language.rs b/crates/language/src/language.rs
index 341f70bff9dc26d442dc8ccf75096576c005b51e..b8d4ca309f943ebd5667b2942f93f461bb874928 100644
--- a/crates/language/src/language.rs
+++ b/crates/language/src/language.rs
@@ -26,6 +26,7 @@ use serde_json::Value;
 use std::{
     any::Any,
     cell::RefCell,
+    fmt::Debug,
     mem,
     ops::Range,
     path::{Path, PathBuf},
@@ -866,6 +867,14 @@ impl Language {
     }
 }
 
+impl Debug for Language {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("Language")
+            .field("name", &self.config.name)
+            .finish()
+    }
+}
+
 impl Grammar {
     pub fn id(&self) -> usize {
         self.id
diff --git a/crates/language/src/syntax_map.rs b/crates/language/src/syntax_map.rs
index a7d9101d7b8a9b8079b557dd435c7945f32df331..8983406690148f8e29f4a07b51bcfc964cd3d4e6 100644
--- a/crates/language/src/syntax_map.rs
+++ b/crates/language/src/syntax_map.rs
@@ -92,6 +92,7 @@ struct SyntaxLayer {
     language: Arc<Language>,
 }
 
+#[derive(Debug)]
 pub struct SyntaxLayerInfo<'a> {
     pub depth: usize,
     pub node: Node<'a>,