A secure TypeScript runtime on V8
-
Supports TypeScript 2.8 out of the box. Uses V8 6.8.275.3. That is, it's very modern JavaScript.
-
No package.json, no npm. Not explicitly compatible with Node.
-
Imports reference source code URLs only.
import { test } from "https://unpkg.com/deno_testing@0.0.5/testing.ts" import { log } from "./util.ts"Remote code is fetched and cached on first execution, and never updated until the code is run with the
--reloadflag. (So this will still work on an airplane. See~/.deno/srcfor details on the cache.) -
File system and network access can be controlled in order to run sandboxed code. Defaults to read-only file system access and no network access. Access between V8 (unprivileged) and Golang (privileged) is only done via serialized messages defined in this protobuf, this makes it easy to audit. To enable write access explicitly use
--allow-writeand--allow-netfor network access. -
Single executable:
> ls -lh deno -rwxrwxr-x 1 ryan ryan 55M May 28 23:46 deno > ldd deno linux-vdso.so.1 => (0x00007ffc6797a000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f104fa47000) libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f104f6c5000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f104f3bc000) libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f104f1a6000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f104eddc000) /lib64/ld-linux-x86-64.so.2 (0x00007f104fc64000) -
Always dies on uncaught errors.
-
Supports top-level await.
-
Aims to be browser compatible.
-
Can be used as a library to easily build your own JavaScript runtime. https://github.com/ry/deno/blob/master/cmd/main.go
Segfaulty.
No docs yet. For some of the public API see: deno.d.ts.
And examples are around here: testdata/004_set_timeout.ts.
Roadmap is here.
Also see this preentation http://tinyclouds.org/jsconf2018.pdf
I will release binaries at some point but for now you have to build it yourself.
You will need Go with $GOPATH defined and
$GOPATH/bin in your $PATH. You will also need
yarn installed.
You need Protobuf 3. On Linux this might work:
cd ~
wget https://github.com/google/protobuf/releases/download/v3.1.0/protoc-3.1.0-linux-x86_64.zip
unzip protoc-3.1.0-linux-x86_64.zip
export PATH=$HOME/bin:$PATHOn macOS, using HomeBrew:
brew install protobufThen you need protoc-gen-go and go-bindata:
go get -u github.com/golang/protobuf/protoc-gen-go
go get -u github.com/jteeuwen/go-bindata/...You need to get and build v8worker2. The package will not build with go get and will log out an error ⚠
# pkg-config --cflags v8.pc
Failed to open 'v8.pc': No such file or directory
No package 'v8.pc' found
pkg-config: exit status 1which can be ignored. It takes about 30 minutes to build:
go get -u github.com/ry/v8worker2
cd $GOPATH/src/github.com/ry/v8worker2
./build.py --use_ccacheMaybe also run git submodule update --init in the v8worker2 dir.
Finally you can get deno and its other Go deps.
go get -u github.com/ry/deno/...Now you can build deno and run it:
cd $GOPATH/src/github.com/ry/deno
make # Wait for redacted
./deno testdata/001_hello.js # Output: Hello Worldmake deno # Builds the deno executable.
make test # Runs the tests.
make fmt # Formats the code.
make clean # Cleans the build.