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Add dev environment setup instructions (#435)
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@ -75,6 +75,20 @@ You can use `rustup component add --toolchain nightly rustfmt-preview` to instal
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`rustfmt +nightly --unstable-features --skip-children` on the changed files to automatically format your code.
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* Push your commits to GitHub and create a pull request against swc's `master` branch.
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## Getting your development environment set up
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After cloning the project there are a few steps required to get the project running.
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1. `git submodule update --init --recursive` This will pull in the ecmascript test suited
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2. Go to the folder `ecmascript/transforms` and run `yarn install`
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3. You need to setup some environment variables in order for the tests to run
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```
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RUST_MIN_STACK=16777216
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RUSTFLAGS="--cfg procmacro2_semver_exempt"
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```
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4. You can now run the tests with `RUST_BACKTRACE=full cargo test --color always --all --all-features`
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## Pull requests
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