From d93bdc43e37bd384b83bbed825d2a6192d87890b Mon Sep 17 00:00:00 2001
From: Graham Esau <gesau@hotmail.co.uk>
Date: Tue, 17 May 2022 18:17:17 +0100
Subject: [PATCH] Revert "Support generic default values"

This feature inadvertently introduced a breaking change (#144)

This reverts commits: feb6c4b2fec86f8ac2afd973a3b3a2d6f51135f2
b38a55331b8b6171305359f618e997a7ce275e4d.
---
 schemars/tests/default.rs                    | 12 ------------
 schemars/tests/expected/generic_default.json | 14 --------------
 schemars_derive/src/schema_exprs.rs          |  2 +-
 3 files changed, 1 insertion(+), 27 deletions(-)
 delete mode 100644 schemars/tests/expected/generic_default.json

diff --git a/schemars/tests/default.rs b/schemars/tests/default.rs
index e6546300..fbc1033b 100644
--- a/schemars/tests/default.rs
+++ b/schemars/tests/default.rs
@@ -56,15 +56,3 @@ struct NotSerialize;
 fn schema_default_values() -> TestResult {
     test_default_generated_schema::<MyStruct>("default")
 }
-
-#[allow(dead_code)]
-#[derive(JsonSchema)]
-struct StructWithGenericDefaults {
-    #[serde(default = "Vec::new")]
-    a_vec: Vec<String>,
-}
-
-#[test]
-fn schema_with_generic_default_value() -> TestResult {
-    test_default_generated_schema::<StructWithGenericDefaults>("generic_default")
-}
diff --git a/schemars/tests/expected/generic_default.json b/schemars/tests/expected/generic_default.json
deleted file mode 100644
index 095b9991..00000000
--- a/schemars/tests/expected/generic_default.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "$schema": "http://json-schema.org/draft-07/schema#",
-  "title": "StructWithGenericDefaults",
-  "type": "object",
-  "properties": {
-    "a_vec": {
-      "default": [],
-      "type": "array",
-      "items": {
-        "type": "string"
-      }
-    }
-  }
-}
\ No newline at end of file
diff --git a/schemars_derive/src/schema_exprs.rs b/schemars_derive/src/schema_exprs.rs
index f41e37ae..c5b1672d 100644
--- a/schemars_derive/src/schema_exprs.rs
+++ b/schemars_derive/src/schema_exprs.rs
@@ -581,7 +581,7 @@ fn field_default_expr(field: &Field, container_has_default: bool) -> Option<Toke
             quote!(container_default.#member)
         }
         SerdeDefault::Default => quote!(<#ty>::default()),
-        SerdeDefault::Path(path) => quote!({ #path() as #ty }),
+        SerdeDefault::Path(path) => quote!(#path()),
     };
 
     let default_expr = match field.serde_attrs.skip_serializing_if() {