4 files changed, 78 insertions, 1 deletions
diff --git a/main/core/runtime/Function.java b/main/core/runtime/Function.java
index cc4f56f..6989a68 100644
--- a/main/core/runtime/Function.java
+++ b/main/core/runtime/Function.java
@@ -15,6 +15,16 @@ public class Function {
 
     private BlockBodyNode body;
 
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    private String name;
+
     public Function(List<String> argumentNames, BlockBodyNode body) {
         this.argumentNames = argumentNames;
         this.body = body;
diff --git a/main/core/runtime/State.java b/main/core/runtime/State.java
index d825a3a..8563a77 100644
--- a/main/core/runtime/State.java
+++ b/main/core/runtime/State.java
@@ -1,6 +1,7 @@
 package com.jantuomi.interpreter.main.core.runtime;
 
 import com.jantuomi.interpreter.main.core.parser.datatype.DataContainer;
+import com.jantuomi.interpreter.main.core.runtime.builtins.BuiltinManager;
 import com.jantuomi.interpreter.main.exception.InterpreterException;
 
 import java.util.Arrays;
@@ -21,7 +22,14 @@ public class State {
 
     private State() {
         /* Push global scope onto the stack */
-        scopes.push(new Scope());
+        Scope globalScope = new Scope();
+
+        for (Function builtin : BuiltinManager.getInstance().getBuiltins()) {
+            globalScope.addFunction(builtin.getName(), builtin);
+        }
+
+        scopes.push(globalScope);
+
     }
 
     private DataContainer resolveSymbol(String symbol) throws InterpreterException {
diff --git a/main/core/runtime/builtins/BuiltinManager.java b/main/core/runtime/builtins/BuiltinManager.java
new file mode 100644
index 0000000..21027a6
--- /dev/null
+++ b/main/core/runtime/builtins/BuiltinManager.java
@@ -0,0 +1,27 @@
+package com.jantuomi.interpreter.main.core.runtime.builtins;
+
+import com.jantuomi.interpreter.main.core.runtime.Function;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by jan on 21.6.2016.
+ */
+public class BuiltinManager {
+    private static BuiltinManager instance = new BuiltinManager();
+
+    public static BuiltinManager getInstance() {
+        return instance;
+    }
+
+    private List<Function> builtins = new ArrayList<>();
+
+    private BuiltinManager() {
+        builtins.add(new OutBuiltinFunction());
+    }
+
+    public List<Function> getBuiltins() {
+        return builtins;
+    }
+}
diff --git a/main/core/runtime/builtins/OutBuiltinFunction.java b/main/core/runtime/builtins/OutBuiltinFunction.java
new file mode 100644
index 0000000..0611a83
--- /dev/null
+++ b/main/core/runtime/builtins/OutBuiltinFunction.java
@@ -0,0 +1,32 @@
+package com.jantuomi.interpreter.main.core.runtime.builtins;
+
+import com.jantuomi.interpreter.main.core.parser.datatype.DataContainer;
+import com.jantuomi.interpreter.main.core.runtime.Function;
+import com.jantuomi.interpreter.main.exception.InterpreterException;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * Created by jan on 21.6.2016.
+ */
+public class OutBuiltinFunction extends Function {
+    public OutBuiltinFunction() {
+        super(
+                Arrays.asList("expression"),
+                null
+        );
+    }
+
+    @Override
+    public String getName() {
+        return "out";
+    }
+
+    @Override
+    public DataContainer evaluate(List<DataContainer> params) throws InterpreterException {
+        DataContainer param = params.get(0);
+        System.out.println(param.getData().toString());
+        return param;
+    }
+}