diff --git a/src/main/java/com/annimon/ownlang/parser/visitors/ModuleDetector.java b/src/main/java/com/annimon/ownlang/parser/visitors/ModuleDetector.java
new file mode 100644
index 0000000..5d62f80
--- /dev/null
+++ b/src/main/java/com/annimon/ownlang/parser/visitors/ModuleDetector.java
@@ -0,0 +1,39 @@
+package com.annimon.ownlang.parser.visitors;
+
+import com.annimon.ownlang.lib.ArrayValue;
+import com.annimon.ownlang.lib.Types;
+import com.annimon.ownlang.lib.Value;
+import com.annimon.ownlang.parser.ast.Statement;
+import com.annimon.ownlang.parser.ast.UseStatement;
+import com.annimon.ownlang.parser.ast.ValueExpression;
+import java.util.HashSet;
+import java.util.Set;
+
+public class ModuleDetector extends AbstractVisitor {
+
+    private Set<String> modules;
+
+    public ModuleDetector() {
+        modules = new HashSet<>();
+    }
+
+    public Set<String> detect(Statement s) {
+        s.accept(this);
+        return modules;
+    }
+
+    @Override
+    public void visit(UseStatement st) {
+        if (st.expression instanceof ValueExpression) {
+            ValueExpression ve = (ValueExpression) st.expression;
+            if (ve.value.type() == Types.ARRAY) {
+                for (Value module : ((ArrayValue) ve.value)) {
+                    modules.add(module.asString());
+                }
+            } else {
+                modules.add(ve.value.asString());
+            }
+        }
+        super.visit(st);
+    }
+}