diff src/luan/LuaClosure.java @ 21:c93d8c781853

add functions git-svn-id: https://luan-java.googlecode.com/svn/trunk@22 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Tue, 04 Dec 2012 09:16:03 +0000
parents
children 1e37f22a34c8
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/luan/LuaClosure.java	Tue Dec 04 09:16:03 2012 +0000
@@ -0,0 +1,29 @@
+package luan;
+
+import luan.interp.Chunk;
+import luan.interp.ReturnException;
+
+
+public final class LuaClosure extends LuaFunction {
+	private final Chunk chunk;
+
+	public LuaClosure(Chunk chunk,LuaState lua) {
+		this.chunk = chunk;
+	}
+
+	public Object[] call(LuaState lua,Object... args) throws LuaException {
+		Object[] stack = lua.newStack(chunk.stackSize);
+		final int n = Math.min(args.length,chunk.numArgs);
+		for( int i=0; i<n; i++ ) {
+			stack[i] = args[i];
+		}
+		try {
+			chunk.block.eval(lua);
+		} catch(ReturnException e) {
+		} finally {
+			lua.popStack();
+		}
+		return lua.returnValues;
+	}
+
+}