Pseudo-KMP Modules

The monorepo is compiled by JPS, which does not support Kotlin Multiplatform. To emulate KMP expect/actual declarations, the Fleet team created the expects-compiler-plugin. This skill covers how to set up and work with modules that use this mechanism.

Documentation

• Multiplatform Migration Guide — step-by-step migration instructions
• Multiplatform Support README — compiler plugin usage and registration
• ExpectInMultiplatform.kt — linkToActual() and @Actual API docs

Module Configuration Checklist

When creating or migrating a pseudo-KMP module:

1. Register in the structure test. Add your module name to the multiplatformModules list in com.intellij.ideaProjectStructure.fast.MultiplatformModuleStructureTest (tests/ideaProjectStructure/testSrc/com/intellij/ideaProjectStructure/fast/MultiplatformModuleStructureTest.kt).