Report malformed schema JSON as a compile error instead of panicking

typify-macro/src/lib.rs

@@ -252,14 +252,19 @@ fn do_import_types(item: TokenStream) -> Result<TokenStream, syn::Error> {
 
     let path = dir.join(schema.value());
 
-    let root_schema: schemars::schema::RootSchema =
-        serde_json::from_reader(std::fs::File::open(&path).map_err(|e| {
-            syn::Error::new(
-                schema.span(),
-                format!("couldn't read file {}: {}", schema.value(), e),
-            )
-        })?)
-        .unwrap();
+    let file = std::fs::File::open(&path).map_err(|e| {
+        syn::Error::new(
+            schema.span(),
+            format!("couldn't read file {}: {}", schema.value(), e),
+        )
+    })?;
+
+    let root_schema: schemars::schema::RootSchema = serde_json::from_reader(file).map_err(|e| {
+        syn::Error::new(
+            schema.span(),
+            format!("couldn't parse file {}: {}", schema.value(), e),
+        )
+    })?;
 
     let mut type_space = TypeSpace::new(&settings);
     type_space

typify/tests/compile-fail/malformed-schema.rs

@@ -0,0 +1,6 @@
+use typify::import_types;
+
+// Cargo.toml exists in trybuild's generated crate but is not valid JSON.
+import_types!("Cargo.toml");
+
+fn main() {}

typify/tests/compile-fail/malformed-schema.stderr

@@ -0,0 +1,5 @@
+error: couldn't parse file Cargo.toml: invalid type: sequence, expected struct RootSchema at line 1 column 1
+ --> tests/compile-fail/malformed-schema.rs:4:15
+  |
+4 | import_types!("Cargo.toml");
+  |               ^^^^^^^^^^^^

typify/tests/compile_fail.rs

@@ -0,0 +1,6 @@
+// Copyright 2026 Oxide Computer Company
+
+#[test]
+fn test_compile_fail() {
+    trybuild::TestCases::new().compile_fail("tests/compile-fail/*.rs");
+}