.gitignore

target

Cargo.lock

[root]
name = "emtest"
version = "0.1.0"
dependencies = [
 "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
 "semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "aho-corasick"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "kernel32-sys"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "lazy_static"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "libc"
version = "0.2.17"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "memchr"
version = "0.1.11"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "regex"
version = "0.1.80"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 "thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 "utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "regex-syntax"
version = "0.3.9"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "semver"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "semver-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "semver-parser"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "lazy_static 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "thread-id"
version = "2.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 "libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "thread_local"
version = "0.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
 "thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
]

[[package]]
name = "utf8-ranges"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "winapi"
version = "0.2.8"
source = "registry+https://github.com/rust-lang/crates.io-index"

[[package]]
name = "winapi-build"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"

[metadata]
"checksum aho-corasick 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ca972c2ea5f742bfce5687b9aef75506a764f61d37f8f649047846a9686ddb66"
"checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
"checksum lazy_static 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6abe0ee2e758cd6bc8a2cd56726359007748fbf4128da998b65d0b70f881e19b"
"checksum libc 0.2.17 (registry+https://github.com/rust-lang/crates.io-index)" = "044d1360593a78f5c8e5e710beccdc24ab71d1f01bc19a29bcacdba22e8475d8"
"checksum memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d8b629fb514376c675b98c1421e80b151d3817ac42d7c667717d282761418d20"
"checksum regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)" = "4fd4ace6a8cf7860714a2c2280d6c1f7e6a413486c13298bbc86fd3da019402f"
"checksum regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "f9ec002c35e86791825ed294b50008eea9ddfc8def4420124fbc6b08db834957"
"checksum semver 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ae2ff60ecdb19c255841c066cbfa5f8c2a4ada1eb3ae47c77ab6667128da71f5"
"checksum semver-parser 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "e88e43a5a74dd2a11707f9c21dfd4a423c66bd871df813227bb0a3e78f3a1ae9"
"checksum thread-id 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a9539db560102d1cef46b8b78ce737ff0bb64e7e18d35b2a5688f7d097d0ff03"
"checksum thread_local 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "8576dbbfcaef9641452d5cf0df9b0e7eeab7694956dd33bb61515fb8f18cfdd5"
"checksum utf8-ranges 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1ca13c08c41c9c3e04224ed9ff80461d97e121589ff27c753a16cb10830ae0f"
"checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
"checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"

Cargo.toml

[package]
name = "emtest"
version = "0.1.0"
authors = ["Brian Anderson <banderson@mozilla.com>"]

[dependencies]
semver = "0.5.1"
regex = "0.1.80"

[[bin]]
name = "emtest"
path = "main.rs"

[profile.dev]
panic = "abort"

[profile.release]
panic = "abort"

main.rs

#![feature(link_args)]

#[link_args = "-s EXPORTED_FUNCTIONS=['_hello_world']"]
#[link_args = "-s DEMANGLE_SUPPORT=1"]
#[link_args = "-s DEMANGLE_SUPPORT=1"]
extern {}

extern crate semver;
extern crate regex;

use semver::Version;
use semver::VersionReq;

#[no_mangle]
pub fn hello_world() -> bool {
    // let r = VersionReq::parse(">= 1.0.0").unwrap();
    let v = Version::parse("1.0.0").unwrap();

    true
}

fn main() {
    /* Intentionally left blank */
}

test.html

<!DOCTYPE html>

<meta charset="utf-8">

<script src="target/asmjs-unknown-emscripten/debug/emtest.js"></script>
<script>
var result = _hello_world();
console.log("result: ", result);
</script>

wrapper.js

var Module = require("./target/asmjs-unknown-emscripten/debug/emtest.js");

var hello_world = Module.cwrap('hello_world', 'boolean', []);

var result = hello_world();
console.log("result: ", result);