Initial commit

Author: zhuowei

.gitignore

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+compiler
+swiftwasm-sdk
+prebuilt
+output

README.md

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+Creates packages containing everything needed to build WebAssembly prpgrams with Swift.
+
+# Building
+
+```
+./downloadPrebuilts.sh
+./buildPackages.sh
+```
+
+# Contents of package
+
+- Swift toolchain from [swiftwasm-sdk](https://github.com/swiftwasm/swiftwasm-sdk)
+- WASI modified sysroot from [wasi-sdk](https://github.com/swiftwasm/wasi-sdk)
+- libicu from [icu4c-wasi](https://github.com/swiftwasm/icu4c-wasi)
+- linking helpers from [swiftwasm-wasi-stubs](https://github.com/swiftwasm/swiftwasm-wasi-stubs)
+- wasi-ld, either from wasi-sdk (on Linux) or upstream LLVM 8.0 (on Mac)
+- build script for compiling a Swift file to a .wasm
+- a Getting Started guide
+
+# Notes
+
+This shares a lot with the [swiftwasm-compile-service](https://github.com/swiftwasm/swiftwasm-compile-service).

buildPackages.sh

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+#!/bin/bash
+set -e
+rm -rf output || true
+mkdir output
+echo "Linux"
+cd linux
+./unpackPrebuilts.sh
+echo "Compressing"
+tar cJf ../output/swiftwasm-sdk-linux.tar.xz swiftwasm-sdk
+echo "macOS"
+cd ../macos
+./unpackPrebuilts.sh
+echo "Compressing"
+tar cJf ../output/swiftwasm-sdk-macos.tar.xz swiftwasm-sdk

copy-shared-files.sh

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+#!/bin/bash
+set -e
+cp -r ../sdkroot/* compiler/
+cp compiler/opt/swiftwasm-sdk/lib/swift/wasm/wasm32/glibc.modulemap compiler/extra_utils

downloadPrebuilts.sh

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+#!/bin/bash
+set -e
+rm -r prebuilt || true
+mkdir prebuilt
+cd prebuilt
+wget https://github.com/swiftwasm/swiftwasm-sdk/releases/download/20190503.1/swiftwasm.tar.gz
+wget https://github.com/swiftwasm/wasi-sdk/releases/download/20190421.6/wasi-sdk-3.19gefb17cb478f9.m-linux.tar.gz
+wget https://github.com/swiftwasm/icu4c-wasi/releases/download/20190421.3/icu4c-wasi.tar.xz
+wget https://github.com/WebAssembly/wabt/releases/download/1.0.10/wabt-1.0.10-linux.tar.gz
+# Mac specific
+wget https://github.com/swiftwasm/swiftwasm-sdk/releases/download/20190506.3/swiftwasm-mac.tar.gz
+wget http://releases.llvm.org/8.0.0/clang+llvm-8.0.0-x86_64-apple-darwin.tar.xz

linux/unpackPrebuilts.sh

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+#!/bin/bash
+set -e
+rm -r swiftwasm-sdk compiler || true
+mkdir swiftwasm-sdk
+ln -s swiftwasm-sdk compiler
+cd compiler
+untar="../prebuilt/wasi-sdk-"*"-linux.tar.gz
+../prebuilt/swiftwasm-sdk.tar.gz
+../prebuilt/icu4c-wasi.tar.xz"
+for i in $untar
+do
+	echo $i
+	tar xf $i
+done
+cd ..
+mv "compiler/wasi-sdk-"* "compiler/wasi-sdk"
+mv "compiler/wabt-"* "compiler/wabt"
+bash ../remove-swift-extra-files.sh || true
+bash ../remove-wasi-extra-files.sh || true
+bash ../copy-shared-files.sh || true

macos/unpackPrebuilts.sh

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+#!/bin/sh
+basepath="compiler/opt/swiftwasm-sdk"
+filestoremove="bin/sil-* 
+bin/lldb*
+bin/sourcekitd-*
+bin/swift-api-digester
+bin/swift-autolink-extract
+bin/swift-demangle
+bin/swift-demangle-yamldump
+bin/swift-format
+bin/swift-llvm-opt
+bin/swift-refactor
+bin/swift-reflection-dump
+bin/swift-*-test
+lib/libsourcekitdInProc.so
+lib/swift/clang/lib/linux/*
+lib/swift_static/linux/*
+lib/swift/linux/x86_64/*
+lib/swift/linux/*"
+for i in $filestoremove
+do
+	echo $basepath/$i
+	rm $basepath/$i
+done

remove-swift-extra-files.sh

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+#!/bin/sh
+basepath="compiler/wasi-sdk/opt/wasi-sdk"
+filestoremove="bin/clang*
+bin/llvm*
+bin/llc"
+for i in $filestoremove
+do
+	echo $basepath/$i
+	rm $basepath/$i
+done

remove-wasi-extra-files.sh

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+SwiftWasm: Getting started
+==========================
+
+Thank you for trying SwiftWasm! Here's how to get started.
+
+Please visit our website at https://swiftwasm.org for the latest updates.
+
+
+Install dependencies
+
+====================
+
+Before running SwiftWasm, you will need to install some dependencies.
+
+Ubuntu:
+
+```
+sudo apt-get install libatomic1
+```
+
+macOS:
+
+(No dependencies needed.)
+
+Windows:
+
+Install Windows Subsystem for Linux, then follow the Ubuntu instructions.
+
+
+
+
+Compile SwiftWasm
+
+=================
+
+Run
+
+```
+./swiftwasm example/hello.swift hello.wasm
+```
+
+To compile example/hello.swift to hello.wasm.
+
+
+
+
+Running Wasm files
+
+==================
+
+To run the resulting hello.wasm file:
+
+- open js-polyfill/polyfill.html in your browser
+- select the hello.wasm file
+
+You can also run the file with
+
+- Wasmtime https://github.com/CraneStation/wasmtime
+- Lucet https://github.com/swiftwasm/lucet/tree/swiftwasm
+- or any other WASI-compatible WebAssembly runtime.
+
+
+
+
+Questions and support
+
+=====================
+
+If you have any questions, please open an issue on
+
+https://github.com/swiftwasm/swift
+
+
+
+Third-party licenses
+
+====================
+
+This package contains components with their own license requirements.
+
+Swift compiler: https://github.com/apple/swift/blob/master/LICENSE.txt
+
+LLVM/Clang: https://github.com/llvm/llvm-project/blob/master/lld/LICENSE.TXT
+
+WASI sysroot: https://github.com/CraneStation/wasi-sysroot/blob/master/LICENSE
+
+ICU: https://github.com/unicode-org/icu/blob/master/icu4c/LICENSE

sdkroot/README.txt

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+print("Hello, 🌐!")

sdkroot/example/hello.swift

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+#!/bin/sh
+exec sed -e "s@\"/include@\"$1/include@g" glibc.modulemap