Why it is that C++ can be compiled to JavaScript bytecode that is WebAssembly (using Emscripten), but it cannot be compiled to Java bytecode?

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WebAssembly R JavaScript renjin WASM

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  • lljvm

    Low Level Java Virtual Machine

    • For example, you can find projects like lljvm that seems to work on C code, via an older version of llvm and its intermediate representation of code. I suspect that C++ is possible to a similar degree that C is possible.

  • AECforWebAssembly

    A port of ArithmeticExpressionCompiler from x86 to WebAssembly, so that the programs written in the language can run in a browser. The compiler has been rewritten from JavaScript into C++.

    • I am asking as somebody who knows a lot about WebAssembly (having made a compiler targetting it), but I know next to nothing about Java Bytecode. However, I assume they are rather similar. So, why can C++ be compiled to one but not the other?

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • renjin

    JVM-based interpreter for the R language for the statistical analysis.

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