e77997c93f
Although initial purpose of this comment was null check, it took much time to complete it and it caused many unrelated changes. Besides just implementing null check in quite naive fashion (I could not use the trick with memory protection, since I have to maintain shadow stack, and support WebAssembly), I had to optimize things. I relied on my existing nullness analysis to eliminate as much null checks as possible. However, the whole nullness analysis was wrong. After some thoughts I came up with solution very close to range analysis, which required me to introduce extension to IR sometimes called e-SSA form with so called sigma nodes. Also, I found some bugs in few different places (by the time write this message I could only remember escape analysis/scalar replacement and after-inlining devirtualization) and fixed them. |
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|---|---|---|
| .idea | ||
| all-deps | ||
| classlib | ||
| core | ||
| extras-slf4j | ||
| html4j | ||
| interop/core | ||
| jso | ||
| metaprogramming | ||
| platform | ||
| samples | ||
| tests | ||
| tools | ||
| .gitignore | ||
| .travis.yml | ||
| checkstyle.xml | ||
| LICENSE | ||
| license-regexp.txt | ||
| NOTICE | ||
| pom.xml | ||
| README.md | ||
| set-version.sh | ||
| travis-settings.xml | ||
| upload-files.sh | ||
TeaVM
See documentation at the project web site.
Useful links:
- Getting started
- Gallery
- Flavour source code repository
- Site source code repository
- Discussion on Google groups
Building TeaVM
Simply clone source code (git clone https://github.com/konsoletyper/teavm.git) and run maven build (mvn clean install). You can do things a little faster (mvn clean -DskipTests) or even a little more faster (mvn clean -DskipTests -Dteavm.build.all=false).
Preview builds
You may want to access new features and don't want to wait until stable release is published on Maven Central. In this case you can get latest development build from bintray. All you need is to put the following in your pom.xml:
<repositories>
<repository>
<id>teavm-dev</id>
<url>https://dl.bintray.com/konsoletyper/teavm</url>
</repository>
</repositories>
IDEA plugin is also available in preview builds. You need to add corresponding repository manually to IDEA. Open Settings -> Plugins -> Browse repositories... -> Manage repositories..., click Add button and enter http://teavm.org/idea/dev/teavmRepository.xml. Then get back to Browse repositories and pick TeaVM plugin from list.
Embedding TeaVM
If you are not satisfied with Maven, you can embed TeaVM in your program or even create your own plugin for any build tool, like Ant or Gradle. The starting point for you may be org.teavm.tooling.TeaVMTool class from teavm-tooling artifact. You may want to go deeper and use org.teavm.vm.TeaVM from teavm-core artifact, learn how TeaVMTool initializes it. To learn how to use TeaVMTool class itself, find its usages across project source code. You most likely encounter Maven and IDEA plugins.
Please, notice that these APIs for embedding are still unstable and may change between versions.
WebAssembly
WebAssembly support is in experimental status. It may lack major features available in JavaScript backend. There's no documentation yet and you should do many things by hands (like embedding generated wasm file into your page, importing JavaScript objects, etc). Look at samples/benchmark module. You should first examine pom.xml file to learn how to build wasm file from Java. Then you may want to examine index-teavm.html and index-teavm.js to learn how to embed WebAssembly into your web page.
Feedback
More information is available at the official site: http://teavm.org.
Ask your questions by email: info@teavm.org. Also you can report issues on a project's issue tracker.