From 1bd7a3901cf73a9219470dafc65f3c7119e96cc0 Mon Sep 17 00:00:00 2001
From: Michael Davis <mcarsondavis@gmail.com>
Date: Wed, 12 Mar 2025 17:40:08 -0400
Subject: [PATCH] queries: Add JSON injection for Rust `json!({..})` macros

Note that this injection doesn't work currently because precedence is
not handled by the current syntax highlighter. The switch to tree-house
will properly handle the precedence of this pattern.
---
 runtime/queries/rust/injections.scm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/runtime/queries/rust/injections.scm b/runtime/queries/rust/injections.scm
index 27915e57e..964eec0f8 100644
--- a/runtime/queries/rust/injections.scm
+++ b/runtime/queries/rust/injections.scm
@@ -35,6 +35,18 @@
  (#set! injection.language "rust")
  (#set! injection.include-children))
 
+((macro_invocation
+   macro:
+     [
+       (scoped_identifier name: (_) @_macro_name)
+       (identifier) @_macro_name
+     ]
+   (token_tree
+     (token_tree . "{" "}" .) @injection.content))
+ (#eq? @_macro_name "json")
+ (#set! injection.language "json")
+ (#set! injection.include-children))
+
 (call_expression
   function: (scoped_identifier
     path: (identifier) @_regex (#any-of? @_regex "Regex" "RegexBuilder")