imported brians code

[nestedvm.git] / src / tests / Env.java

diff --git a/src/tests/Env.java b/src/tests/Env.java
new file mode 100644 (file)
index 0000000..59048b5
--- /dev/null
+++ b/src/tests/Env.java
@@ -0,0 +1,32 @@
+package tests;
+
+import org.xwt.mips.Runtime;
+import org.xwt.mips.Interpreter;
+
+class Env {
+    public static void main(String[] args) throws Exception {
+        int n = 0;
+        while(n < args.length && args[n].indexOf("=") != -1) n++;
+
+        if(n==args.length) {
+            System.err.println("Usage: Env [name=value ...] classname [args ...]");
+            System.exit(1);
+        }
+        
+        String[] env = new String[n];
+        String[] appArgs = new String[args.length-n-1];
+        for(int i=0;i<n;i++) env[i] = args[i];
+        String className = args[n];
+        for(int i=n+1;i<args.length;i++) appArgs[i-n-1] = args[i];
+        
+        Runtime rt;
+        if(className.endsWith(".mips")) {
+            rt = new Interpreter(className);
+        } else {
+            Class c = Class.forName(className);
+            if(!Runtime.class.isAssignableFrom(c)) { System.err.println(className + " isn't a MIPS compiled class"); System.exit(1); }
+            rt = (Runtime) c.newInstance();
+        }
+        System.exit(rt.run(appArgs,env));
+    }
+}