1.17.0

Thanks to @jisungbin, @hfhbd, @evant, @sgjesse, @sebek64 for contributing to this release.

• Change: kotlinx-metadata 0.9.0. Note that the KotlinClassMetadata.read is deprecated in 0.9.0 and replaced with readStrict (#1830).
  • Note: we now also provide lenient parameters to map to the underlying readStrict() and readLenient() calls (#1766).
  • We have also removed various Class/TypeElement/Metadata-to-KmClass APIs from the public API, as these are trivial to write now with kotlinx-metadata's newer APIs and allows us to focus the API surface area of this artifact better (#1891).
• New: Supertype list wraps to one-per-line if the primary constructor spans multiple lines (#1866).
• New: Extract MemberSpecHolder interface for constructs that can hold PropertySpecs and FunSpecs and their builders (#1877).
• New: joinToCode variant which operates on any type, but requires a transform lambda to convert each element into a CodeBlock (#1874).
• New: Support annotation type arguments in KSAnnotation.toAnnotationSpec() (#1889).
• Fix: Prevent name clashes between a function in class and a function call in current scope (#1850).
• Fix: Fix extension function imports (#1814).
• Fix: Omit implicit modifiers on FileSpec.scriptBuilder (#1813).
• Fix: Fix trailing newline in PropertySpec (#1827).
• Fix: KSAnnotation.toAnnotationSpec writes varargs in place instead of making them an array to work around a Kotlin issue with OptIn annotations (#1833).
• Fix: MemberNames without a package are now correctly imported (#1841)
• Fix: Throw if primary constructor delegates to other constructors (#1859).
• Fix: Aliased imports with nested class (#1876).
• Fix: Check for error types in KSType.toClassName() (#1890).
• Fix: Support generating a single import for overloaded MemberNames (#1909).

1.16.0

Thanks to @drawers, @rickclephas for contributing to this release.

• New: Kotlin 1.9.22.
• New: KSP 1.9.22-1.0.16.
• New: Add NameAllocator API to control keyword pre-allocation (#1803).
• Fix: Fix issue with missing suspend modifier in KSTypeReference.toTypeName (#1793).
• Fix: Honour same-package import aliases (#1794).
• Fix: Always include parameter docs in the type header (#1800).

1.15.3

Thanks to @gabrielittner for contributing to this release.

• Fix: Fix nullability of lambdas in KSTypeReference.toTypeName (#1756).

1.15.2

Thanks to @evant for contributing to this release.

• New: Kotlin 1.9.21.
• New: KSP 1.9.21-1.0.15.
• New: KSP: more accurately represent function types (#1742).

1.15.1

• Fix: Fix a regression introduced by #1637, where a superfluous newline is added to a type's KDoc if it has a primary constructor with no docs (#1727).

1.15.0

Thanks to @drawers, @fejesjoco, @takahirom, @martinbonnin, @mcarleio for contributing to this release.

In this release the :kotlinpoet module has been converted to a Kotlin Multiplatform module (#1654), though for now it only supports the JVM target.

• New: Kotlin 1.9.20.
• New: KSP 1.9.20-1.0.14.
• New: Extract TypeSpecHolder interface for constructs that can hold a TypeSpec and their builders (#1723).
• New: Expose relative path from FileSpec (#1720).
• New: Return the generated path from FileSpec.writeTo(). (#1514).
• New: Remove default compatibility from unstable types (#1662).
• New: Deprecate TypeSpec.expectClassBuilder() and TypeSpec.valueClassBuilder() (#1589).
• New: Add option to convert KSAnnotation to AnnotationSpec while omitting default values (#1538).
• New: Add FileSpec.builder convenience for MemberName (#1585).
• Fix: Set DecimalFormatSymbols.minusSign for consistency across locales (#1658).
• Fix: Fix link to incremental KSP in KDoc (#1638).
• Fix: Emit primary constructor KDoc (#1637).
• Change: kotlinx-metadata 0.7.0. This is a breaking change for users of the :kotlinpoet-metadata module, as most Flags-API extensions have been removed in favor of the now-available first-party versions.

1.14.2

• Fix: Fix one more missing API in binary compatibility override in Annotatable.Builder (#1581).

1.14.1

• Fix: Restore ABI stability for annotatable and documentable builders (#1580).

1.14.0

Thanks to @Omico, @drawers, @RBusarow for contributing to this release.

• New: Kotlin 1.8.21.

• New: KSP 1.8.21-1.0.11.

• New: Enable default methods in Java bytecode (#1561).

• New: Group Kotlin and Renovate updates together in Renovate (#1562).

• New: Extract trait interface for annotatable constructs and their builders (#1564).

• New: Extract trait interface for documentable constructs and their builders (#1571).

• New: Document the usage of STAR (#1572).

• New: Add builder for FunSpec which accepts a MemberName (#1574).

• Fix: Omit public modifier on override function or constructor parameters (#1550).

• Fix: Correct handling of members in various types (#1558).

• Fix: Function return types now default to Unit unless explicitly set (#1559).

  Previously the default was null which behaved like Unit for block bodies. When an expression body was produced,
  however, no return type would be emitted. This meant that the return type was implicit based on the contents of
  the body.

  With this change, when no return type is specified and an expression body is produced, the return type will be
  explicitly Unit. Specify the actual return type explicitly to correct the output.

  Old versions:

  val funSpec = FunSpec.builder("foo")
    .addStatement("return 1")
    .build()

  public fun foo() = 1

  This version, incorrect:

  val funSpec = FunSpec.builder("foo")
    .addStatement("return 1")
    .build()

  public fun foo(): Unit = 1 // ❌

  This version, correct:

   val funSpec = FunSpec.builder("foo")
  +  .returns(INT)
     .addStatement("return 1")
     .build()

  public fun foo(): Int = 1 // ✅

  Additionally, as part of this change, FunSpec.returnType has changed to be non-nullable. This is a source- and
  binary-compatible change, although if you were performing null-checks then new warnings may appear after upgrade.

• Fix: Append nested class names to alias during name lookup (#1568).

• Fix: Allow PropertySpec with context receivers and without getter or setter (#1575).

1.13.2

What's Changed

• KSType.toTypeName fixed to work with aliased types by @Squiry in #1534

New Contributors

• @Squiry made their first contribution in #1534

Full Changelog: 1.13.1...1.13.2