add support for compact_str crate

Author: nerodono

Cargo.lock

@@ -35,6 +35,7 @@ bigdecimal03 = { version = "0.3", default-features = false, optional = true, pac
 bigdecimal04 = { version = "0.4", default-features = false, optional = true, package = "bigdecimal" }
 enumset = { version = "1.0", optional = true }
 smol_str = { version = "0.1.17", optional = true }
+compact_str = { version = "0.8.0", optional = true }
 semver = { version = "1.0.9", features = ["serde"], optional = true }
 
 [dev-dependencies]

schemars/Cargo.toml

@@ -0,0 +1,6 @@
+use crate::gen::SchemaGenerator;
+use crate::schema::*;
+use crate::JsonSchema;
+use compact_str::CompactString;
+
+forward_impl!(CompactString => String);

schemars/src/json_schema_impls/compact_str.rs

@@ -50,6 +50,8 @@ mod atomic;
 mod bytes;
 #[cfg(feature = "chrono")]
 mod chrono;
+#[cfg(feature = "compact_str")]
+mod compact_str;
 mod core;
 #[cfg(any(
     feature = "rust_decimal",

schemars/src/json_schema_impls/mod.rs

@@ -0,0 +1,8 @@
+mod util;
+use compact_str::CompactString;
+use util::*;
+
+#[test]
+fn smol_str() -> TestResult {
+    test_default_generated_schema::<CompactString>("compact_str")
+}

schemars/tests/compact_str.rs

@@ -0,0 +1,5 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "String",
+  "type": "string"
+}