[Parsing] Allow OAS versions 3.1.2 and 3.2.0

Author: mattpolzin

Package.swift

@@ -45,7 +45,7 @@ let package = Package(
         .package(url: "https://github.com/apple/swift-collections", from: "1.1.4"),
 
         // Read OpenAPI documents
-        .package(url: "https://github.com/mattpolzin/OpenAPIKit", from: "3.3.0"),
+        .package(url: "https://github.com/mattpolzin/OpenAPIKit", from: "3.9.0"),
         .package(url: "https://github.com/jpsim/Yams", "4.0.0"..<"7.0.0"),
 
         // CLI Tool

README.md

@@ -17,7 +17,7 @@ The code is generated at build-time, so it's always in sync with the OpenAPI doc
 
 ## Features
 
-- Works with OpenAPI Specification versions 3.0 and 3.1.
+- Works with OpenAPI Specification versions 3.0 and 3.1 and has preliminary support for version 3.2.
 - Streaming request and response bodies enabling use cases such as JSON event streams, and large payloads without buffering.
 - Support for JSON, multipart, URL-encoded form, base64, plain text, and raw bytes, represented as value types with type-safe properties.
 - Client, server, and middleware abstractions, decoupling the generated code from the HTTP client library and web framework.
@@ -91,9 +91,9 @@ The Swift OpenAPI Generator project is split across multiple repositories to ena
 
 ## Requirements and supported features
 
-| Generator versions | Supported OpenAPI versions |
-| ------------------ | -------------------------- |
-| `1.0.0` ... `main` | 3.0, 3.1                   |
+| Generator versions | Supported OpenAPI versions  |
+| ------------------ | --------------------------- |
+| `1.0.0` ... `main` | 3.0, 3.1, 3.2 (preliminary) |
 
 See also [Supported OpenAPI features][supported-openapi-features].
 

Sources/_OpenAPIGeneratorCore/Parser/YamsParser.swift

@@ -54,6 +54,13 @@ public struct YamsParser: ParserProtocol {
         let decoder = YAMLDecoder()
         let openapiData = input.contents
 
+        let decodingOptions = [
+            DocumentConfiguration.versionMapKey: [
+                // Until we move to OpenAPIKit v5.0+ we will parse OAS 3.2.0 as if it were OAS 3.1.2
+                "3.2.0": OpenAPI.Document.Version.v3_1_2
+            ]
+        ]
+
         struct OpenAPIVersionedDocument: Decodable { var openapi: String? }
 
         let versionedDocument: OpenAPIVersionedDocument
@@ -73,7 +80,8 @@ public struct YamsParser: ParserProtocol {
             case "3.0.0", "3.0.1", "3.0.2", "3.0.3", "3.0.4":
                 let openAPI30Document = try decoder.decode(OpenAPIKit30.OpenAPI.Document.self, from: input.contents)
                 document = openAPI30Document.convert(to: .v3_1_0)
-            case "3.1.0", "3.1.1": document = try decoder.decode(OpenAPIKit.OpenAPI.Document.self, from: input.contents)
+            case "3.1.0", "3.1.1", "3.1.2": document = try decoder.decode(OpenAPIKit.OpenAPI.Document.self, from: input.contents)
+            case "3.2.0": document = try decoder.decode(OpenAPIKit.OpenAPI.Document.self, from: input.contents, userInfo: decodingOptions)
             default:
                 throw Diagnostic.openAPIVersionError(
                     versionString: "openapi: \(openAPIVersion)",
@@ -128,7 +136,7 @@ extension Diagnostic {
     static func openAPIVersionError(versionString: String, location: Location) -> Diagnostic {
         error(
             message:
-                "Unsupported document version: \(versionString). Please provide a document with OpenAPI versions in the 3.0.x or 3.1.x sets.",
+                "Unsupported document version: \(versionString). Please provide a document with OpenAPI versions in the 3.0.x, 3.1.x, or 3.2.x sets.",
             location: location
         )
     }
@@ -139,7 +147,7 @@ extension Diagnostic {
     static func openAPIMissingVersionError(location: Location) -> Diagnostic {
         error(
             message:
-                "No key named openapi found. Please provide a valid OpenAPI document with OpenAPI versions in the 3.0.x or 3.1.x sets.",
+                "No key named openapi found. Please provide a valid OpenAPI document with OpenAPI versions in the 3.0.x, 3.1.x, or 3.2.x sets.",
             location: location
         )
     }

Tests/OpenAPIGeneratorCoreTests/Parser/Test_YamsParser.swift

@@ -24,13 +24,15 @@ final class Test_YamsParser: Test_Core {
         XCTAssertNoThrow(try _test(openAPIVersionString: "3.0.4"))
         XCTAssertNoThrow(try _test(openAPIVersionString: "3.1.0"))
         XCTAssertNoThrow(try _test(openAPIVersionString: "3.1.1"))
+        XCTAssertNoThrow(try _test(openAPIVersionString: "3.1.2"))
+        XCTAssertNoThrow(try _test(openAPIVersionString: "3.2.0"))
 
         let expected1 =
-            "/foo.yaml: error: Unsupported document version: openapi: 3.2.0. Please provide a document with OpenAPI versions in the 3.0.x or 3.1.x sets."
-        assertThrownError(try _test(openAPIVersionString: "3.2.0"), expectedDiagnostic: expected1)
+            "/foo.yaml: error: Unsupported document version: openapi: 3.3.0. Please provide a document with OpenAPI versions in the 3.0.x, 3.1.x, or 3.2.x sets."
+        assertThrownError(try _test(openAPIVersionString: "3.3.0"), expectedDiagnostic: expected1)
 
         let expected2 =
-            "/foo.yaml: error: Unsupported document version: openapi: 2.0. Please provide a document with OpenAPI versions in the 3.0.x or 3.1.x sets."
+            "/foo.yaml: error: Unsupported document version: openapi: 2.0. Please provide a document with OpenAPI versions in the 3.0.x, 3.1.x, or 3.2.x sets."
         assertThrownError(try _test(openAPIVersionString: "2.0"), expectedDiagnostic: expected2)
     }
 
@@ -56,7 +58,7 @@ final class Test_YamsParser: Test_Core {
             """
 
         let expected =
-            "/foo.yaml: error: No key named openapi found. Please provide a valid OpenAPI document with OpenAPI versions in the 3.0.x or 3.1.x sets."
+            "/foo.yaml: error: No key named openapi found. Please provide a valid OpenAPI document with OpenAPI versions in the 3.0.x, 3.1.x, or 3.2.x sets."
         assertThrownError(try _test(yaml), expectedDiagnostic: expected)
     }