Merge pull request #6 from naqvis/fix/issue4

chore: updated to work with latest crystal version. closes #4

README.md

@@ -50,7 +50,7 @@ it's the best place for a complete introduction!
 <br/>
 
 > **_NOTE:_** 
-Shard assumes you have [wasmer](https://github.com/wasmerio/wasmer) runtime installed and environment variable **`WASMER_DIR`** is setup properly, or you will encounter issues during compilation.
+Shard assumes you have [wasmer](https://github.com/wasmerio/wasmer) runtime version 2.XX installed and environment variable **`WASMER_DIR`** is setup properly, or you will encounter issues during compilation.
 
 <br/>
 

shard.yml

@@ -1,5 +1,5 @@
 name: wasmer
-version: 0.2.2
+version: 0.2.3
 
 authors:
   - Ali Naqvi <[email protected]>

src/wasmer/function.cr

@@ -118,9 +118,10 @@ module Wasmer
 
     private def initialize(store : Store, type : FunctionType, env : UserEnv, func : HostFunction)
       host = HostFunc.new(store, func, env)
-      @env = FuncEnv.new(@@func_store.store(host))
+      fenv = FuncEnv.new(@@func_store.store(host))
+      @env = fenv
       @ptr = LibWasmer.wasm_func_new_with_env(store, type,
-        ->Function.trampoline, Box(FuncEnv).box(@env), ->Function.env_finalizer)
+        ->Function.trampoline, Box(FuncEnv).box(fenv), ->Function.env_finalizer)
     end
 
     # :nodoc: