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[JExtract/JNI] Support optionals in JNI mode #340

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Merged
merged 12 commits into from
Aug 1, 2025
Merged

[JExtract/JNI] Support optionals in JNI mode #340

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7cba57b
add support for optionals as parameters
madsodgaard Jul 28, 2025
dc619ae
add support for basic primitive types as optional returns
madsodgaard Jul 29, 2025
04b2d9e
move tests
madsodgaard Jul 29, 2025
cea8b92
add support for primitive types that cannot be widened
madsodgaard Jul 31, 2025
56a9096
add support for jextract classes
madsodgaard Jul 31, 2025
615c671
Merge branch 'main' into jni-optional
madsodgaard Jul 31, 2025
a6c2fb9
small cleanups
madsodgaard Jul 31, 2025
528cbab
PR feedback
madsodgaard Jul 31, 2025
ed42947
add support for optional JavaKit wrapped parameters
madsodgaard Jul 31, 2025
760476c
update supported features
madsodgaard Aug 1, 2025
e087327
fix tests
madsodgaard Aug 1, 2025
df418b0
add codegen tests
madsodgaard Aug 1, 2025
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3 changes: 2 additions & 1 deletion Sources/SwiftJavaDocumentation/Documentation.docc/SupportedFeatures.md
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Expand Up @@ -63,7 +63,8 @@ SwiftJava's `swift-java jextract` tool automates generating Java bindings from S
| `Foundation.Data`, `any Foundation.DataProtocol` | ✅ | ❌ |
| Tuples: `(Int, String)`, `(A, B, C)` | ❌ | ❌ |
| Protocols: `protocol`, existential parameters `any Collection` | ❌ | ❌ |
| Optional types: `Int?`, `AnyObject?` | ❌ | ❌ |
| Optional parameters: `func f(i: Int?, class: MyClass?)` | ✅ | ✅ |
| Optional return types: `func f() -> Int?`, `func g() -> MyClass?` | ❌ | ✅ |
| Primitive types: `Bool`, `Int`, `Int8`, `Int16`, `Int32`, `Int64`, `Float`, `Double` | ✅ | ✅ |
| Parameters: JavaKit wrapped types `JavaLong`, `JavaInteger` | ❌ | ✅ |
| Return values: JavaKit wrapped types `JavaLong`, `JavaInteger` | ❌ | ❌ |
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