Dekompiled
summary
Analyzes how Kotlin maps almost every language feature to JVM bytecode — about 40 Kotlin features — by compiling with kotlinc (1.6.x) and decompiling with CFR to inspect strategies. Finds enforcement via kotlin.Metadata D1/D2 plus synthetic runtime checks like Intrinsics.checkParameterIsNotNull, default-arg $default stubs, inline/reified methods inlined to avoid type erasure, ranges lowered to primitive loops, top-level functions placed in a file-named class, and suspend functions that break common decompilers.
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chapters (15)
- 0:00Start
- 3:18Agenda
- 3:48Kotlin Compilation
- 6:42JVM Compilation
- 7:51JVM Bytecode
- 9:19Analyzed Kotlin Features
- 9:55Methodology
- 17:50Kotlin features on the JVM
- 21:59Vote for Kotlin features
- 23:27Operator Overloading
- 25:36Named Argument
- 28:09reified Keyword
- 30:32inline Keyword
- 32:08Iterating over Range
- 33:39Top-Level Function
