Implement JsonSchema for std::time types

schemars/tests/expected/duration_and_systemtime.json

@@ -0,0 +1,45 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "MyStruct",
+  "type": "object",
+  "required": [
+    "duration",
+    "time"
+  ],
+  "properties": {
+    "duration": {
+      "$ref": "#/definitions/Duration"
+    },
+    "time": {
+      "$ref": "#/definitions/SystemTime"
+    }
+  },
+  "definitions": {
+    "Duration": {
+      "type": "object",
+      "properties": {
+        "nanos": {
+          "type": "integer",
+          "format": "uint32"
+        },
+        "secs": {
+          "type": "integer",
+          "format": "uint64"
+        }
+      }
+    },
+    "SystemTime": {
+      "type": "object",
+      "properties": {
+        "nanos_since_epoch": {
+          "type": "integer",
+          "format": "uint32"
+        },
+        "secs_since_epoch": {
+          "type": "integer",
+          "format": "uint64"
+        }
+      }
+    }
+  }
+}

schemars/tests/time.rs

@@ -0,0 +1,15 @@
+mod util;
+use schemars::JsonSchema;
+use util::*;
+use std::time::{Duration, SystemTime};
+
+#[derive(Debug, JsonSchema)]
+struct MyStruct {
+    duration: Duration,
+    time: SystemTime,
+}
+
+#[test]
+fn duration_and_systemtime() -> TestResult {
+    test_default_generated_schema::<MyStruct>("duration_and_systemtime")
+}