R8 Optimization: Class Constant Operations

Note: This post is part of a series on D8 and R8, Android’s new dexer and optimizer, respectively. For an intro to D8 read “Android’s Java 8 support”. For an intro to R8 read “R8 Optimization: Staticization”. The previous post in the series showed R8 (and D8) invoking string methods at compile-time when the inputs were all constants. R8 is able to do this because the content of constant strings is available inside the bytecode. That post also claimed that strings are the only non-primitive typ...

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