Release 1.0.200

Only format Unexpected::Float with decimal point if it is finite

serde/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "1.0.199"
+version = "1.0.200"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 build = "build.rs"
 categories = ["encoding", "no-std", "no-std::no-alloc"]
@@ -37,7 +37,7 @@ rustdoc-args = ["--cfg", "doc_cfg", "--generate-link-to-definition"]
 # is compatible with exactly one serde release because the generated code
 # involves nonpublic APIs which are not bound by semver.
 [target.'cfg(any())'.dependencies]
-serde_derive = { version = "=1.0.199", path = "../serde_derive" }
+serde_derive = { version = "=1.0.200", path = "../serde_derive" }
 
 
 ### FEATURES #################################################################

serde/src/de/mod.rs

@@ -2312,13 +2312,17 @@ impl Display for WithDecimalPoint {
             }
         }
 
-        let mut writer = LookForDecimalPoint {
-            formatter,
-            has_decimal_point: false,
-        };
-        tri!(write!(writer, "{}", self.0));
-        if !writer.has_decimal_point {
-            tri!(formatter.write_str(".0"));
+        if self.0.is_finite() {
+            let mut writer = LookForDecimalPoint {
+                formatter,
+                has_decimal_point: false,
+            };
+            tri!(write!(writer, "{}", self.0));
+            if !writer.has_decimal_point {
+                tri!(formatter.write_str(".0"));
+            }
+        } else {
+            tri!(write!(formatter, "{}", self.0));
         }
         Ok(())
     }

serde/src/lib.rs

@@ -95,7 +95,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.199")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.200")]
 // Support using Serde without the standard library!
 #![cfg_attr(not(feature = "std"), no_std)]
 // Show which crate feature enables conditionally compiled APIs in documentation.

serde_derive/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.199"
+version = "1.0.200"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 categories = ["no-std", "no-std::no-alloc"]
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"

serde_derive/src/lib.rs

@@ -13,7 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html
 
-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.199")]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.200")]
 // Ignored clippy lints
 #![allow(
     // clippy false positive: https://github.com/rust-lang/rust-clippy/issues/7054

test_suite/tests/test_de_error.rs

@@ -1438,6 +1438,14 @@ fn test_integer_from_float() {
     );
 }
 
+#[test]
+fn test_nan_no_decimal_point() {
+    assert_de_tokens_error::<isize>(
+        &[Token::F32(f32::NAN)],
+        "invalid type: floating point `NaN`, expected isize",
+    );
+}
+
 #[test]
 fn test_unit_struct_from_seq() {
     assert_de_tokens_error::<UnitStruct>(