languages: add CEL, SpiceDB schema language (#9296)

* languages: add CEL language and grammar

* languages: add spicedb schema language

* chore: docgen

* runtime/queries: refine spicedb & cel highlights

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

* languages: update spicedb

---------

Co-authored-by: Michael Davis <mcarsondavis@gmail.com>

3 files changed, 56 insertions, 0 deletions

diff --git a/runtime/queries/spicedb/highlights.scm b/runtime/queries/spicedb/highlights.scm
new file mode 100644
index 00000000..63c93955
--- /dev/null
+++ b/runtime/queries/spicedb/highlights.scm
@@ -0,0 +1,47 @@
+; highlights.scm
+
+[
+  "definition"
+  "caveat"
+  "permission"
+  "relation"
+  "nil"
+] @keyword
+
+[
+  ","
+  ":"
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "{"
+  "}"
+] @punctuation.bracket
+
+[
+  "|"
+  "+"
+  "-"
+  "&"
+  "#"
+  "->"
+  "="
+] @operator
+("with") @keyword.operator
+
+[
+  "nil"
+  "*"
+] @constant.builtin
+
+(comment) @comment
+(type_identifier) @type
+(cel_type_identifier) @type
+(cel_variable_identifier) @variable.parameter
+(field_identifier) @variable.other.member
+[
+  (func_identifier)
+  (method_identifier)
+] @function.method
diff --git a/runtime/queries/spicedb/injections.scm b/runtime/queries/spicedb/injections.scm
new file mode 100644
index 00000000..f8cafc9d
--- /dev/null
+++ b/runtime/queries/spicedb/injections.scm
@@ -0,0 +1,5 @@
+((comment) @injection.content
+ (#set! injection.language "comment"))
+
+((caveat_expr) @injection.content
+ (#set! injection.language "cel"))
diff --git a/runtime/queries/spicedb/tags.scm b/runtime/queries/spicedb/tags.scm
new file mode 100644
index 00000000..a8fe932b
--- /dev/null
+++ b/runtime/queries/spicedb/tags.scm
@@ -0,0 +1,4 @@
+(object_definition
+  name: (type_identifier) @name) @definition.type
+
+(type_identifier) @name @reference.type