mirror of
https://github.com/fluencelabs/asmble
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20 lines
1005 B
Markdown
20 lines
1005 B
Markdown
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### Example: Rust String
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This shows an example of using Rust strings on the JVM. This builds on [rust-simple](../rust-simple).
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In this version, we do allocation and deallocation on the Rust side and we have a Java pointer object that deallocates
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on finalization. Inside of Rust, we make sure not to take ownership of any of the data. To demonstrate string use, we
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implement two functions on the Rust side: one for string length and another for prepending "From Rust: ". Both don't
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take strings directly, but instead pointers and lengths to the byte arrays.
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To run it yourself, run the following from the root `asmble` dir:
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gradlew --no-daemon :examples:rust-string:run
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In release mode, the generated class is 128KB w/ a bit over 200 methods, but it is quite fast. The output:
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Char count of 'tester': 6
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Char count of Russian hello (Здравствуйте): 12
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From Rust: Hello, World!
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For me on Windows, the Russian word above just appears as `????????????`, but the rest is right.
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