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Make Your Java Code Null-Safe Without Rewriting (jplus.hashnode.dev)

submitted 1 month ago* (last edited 1 month ago) by justicecoder@programming.dev to c/programming@programming.dev

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JPlus is fully compatible with Java, offering modern language features like null safety, boilerplate code generation and other modern language features to reduce developer burden and maximize productivity.

Notably, there is currently no ‘superset’ language that keeps Java syntax almost intact while extending the language with features like null checks at the language level. JPlus aims to fill this gap, providing a language that existing Java developers can naturally learn and adopt.

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[–] Pamasich@kbin.earth 2 points 1 month ago (5 children)

However, JPlus is not merely a “preprocessor.” It actually parses Java source like a compiler, performs null-safety checks and boilerplate code generation on the generated parse tree, and finally produces standard Java code. In that sense, JPlus should be considered a compiler. The only difference is that its output is Java code

A preprocessor is basically a compiler which produces input for another compiler. Yes, it's a compiler. The difference is that it produces source files, not bytecode.

From Wikipedia:

In computer science, a preprocessor (or precompiler)[1] is a program that processes its input data to produce output that is used as input in another program. [...], which is often used by some subsequent programs like compilers.

The emphasis is mine.

Both Typescript and SASS are examples of preprocessors.

[–] justicecoder@programming.dev 1 points 1 month ago (4 children)

From Wikipedia:

In computer science, a preprocessor (or precompiler)[1] is a program that processes its input data to produce output that is used as input in another program. […], which is often used by some subsequent programs like compilers.

The emphasis is mine.

Both Typescript and SASS are examples of preprocessors.

By that logic, the C compiler would also be a preprocessor since it converts C code into assembly. Simply calling something a preprocessor just because its output is source code is not logically correct. The same applies to JPlus: the fact that it ultimately produces Java source code does not make it a preprocessor. Internally, it performs compiler-level processes such as AST generation, null-safety checks, and boilerplate code generation, so it should be regarded as a proper compiler.

[–] SavinDWhales@lemmy.world 2 points 1 month ago (1 children)

Wouldn't JPlus be a Transpiler, just like Typescript is?

[–] justicecoder@programming.dev 1 points 1 month ago

t’s true that JPlus holds a similar position to TypeScript. However, it is a programming language. Here’s a definition quoted from the main page of the TypeScript website -> “TypeScript is a strongly typed programming language that builds on JavaScript, giving you better tooling at any scale.”

Similarly,

JPlus is a Java superset programming language — fully compatible with Java, offering modern language features like null safety, boilerplate code generation, and other enhancements to reduce developer burden and maximize productivity.

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