2019-09-19 17:39:47 +00:00
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# Feature Table
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## Compiler Backend
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| | Singlepass | Cranelift | LLVM |
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2019-09-30 23:55:41 +00:00
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| - | :-: | :-: | :-: |
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2019-10-01 00:05:40 +00:00
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| Caching | ⬜ | ✅ | ✅ |
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2019-10-01 00:02:58 +00:00
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| Emscripten | ✅ | ✅ | ✅ |
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2019-10-01 00:05:40 +00:00
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| Metering | ✅ | ⬜ | ✅ |
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| Multi-value return | ⬜ | ⬜ | ⬜ |
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2019-10-01 00:02:58 +00:00
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| OSR | 🔄 | ❓ | ❓ |
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2019-10-01 00:05:40 +00:00
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| SIMD | ⬜ | ⬜ | ✅ |
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2019-10-01 00:02:58 +00:00
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| WASI | ✅ | ✅ | ✅ |
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2019-10-30 20:48:41 +00:00
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| WASMER_BACKTRACE | ✅ | ⬜ | ⬜ |
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2019-09-19 17:39:47 +00:00
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2019-10-31 16:55:55 +00:00
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## Operating System
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| | GNU Linux | Mac OSX | Windows NT |
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| - | :-: | :-: | :-: |
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| Cranelift Backend | ✅ | ✅ | ✅ |
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| LLVM Backend | ✅ | ✅ | ✅ |
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2019-11-19 17:48:51 +00:00
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| Singlepass Backend | ✅ | ✅ | [#347](https://github.com/wasmerio/wasmer/issues/347) |
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2019-10-31 16:55:55 +00:00
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| WASI | ✅ | ✅ | ✅* |
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* `poll_fd` is not fully implemented for Windows yet
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2019-09-19 17:39:47 +00:00
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## Language integration
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TODO: define a set of features that are relevant and mark them here
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Current ideas:
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2019-09-21 00:01:41 +00:00
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- Callbacks
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- Metering
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- Caching
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2019-10-30 20:48:41 +00:00
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2019-10-31 19:14:16 +00:00
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> TODO: expand this table, it's focused on new features that we haven't implemented yet and doesn't list all language integrations
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2019-10-30 20:48:41 +00:00
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| | Rust | C / C++ | Go | Python | Ruby |
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| - | :-: | :-: | :-: | :-: | :-: |
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| Terminate in host call | ✅ | ⬜ | ⬜ | ⬜ | ⬜ |
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| WASI | ✅ | ✅ | 🔄 | ⬜ | ⬜ |
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| WASI FS API | ✅ | ⬜ | ⬜ | ⬜ | ⬜ |
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