Extract Backend interface from PythonBackend

3 files changed, 15 insertions, 4 deletions

diff --git a/src/main/java/org/zwobble/couscous/Backend.java b/src/main/java/org/zwobble/couscous/Backend.java
new file mode 100644
index 0000000..4415593
--- /dev/null
+++ b/src/main/java/org/zwobble/couscous/Backend.java
@@ -0,0 +1,10 @@
+package org.zwobble.couscous;
+
+import java.io.IOException;
+import java.util.List;
+
+import org.zwobble.couscous.ast.ClassNode;
+
+public interface Backend {
+    void compile(List<ClassNode> classes) throws IOException;
+}
diff --git a/src/main/java/org/zwobble/couscous/CouscousCompiler.java b/src/main/java/org/zwobble/couscous/CouscousCompiler.java
index 7c088a4..a1e0787 100644
--- a/src/main/java/org/zwobble/couscous/CouscousCompiler.java
+++ b/src/main/java/org/zwobble/couscous/CouscousCompiler.java
@@ -5,13 +5,12 @@ import java.nio.file.Path;
 import java.util.List;
 
 import org.zwobble.couscous.ast.ClassNode;
-import org.zwobble.couscous.backends.python.PythonBackend;
 import org.zwobble.couscous.frontends.java.JavaFrontend;
 
 public class CouscousCompiler {
-    private final PythonBackend backend;
+    private final Backend backend;
 
-    public CouscousCompiler(PythonBackend backend) {
+    public CouscousCompiler(Backend backend) {
         this.backend = backend;
     }
 
diff --git a/src/main/java/org/zwobble/couscous/backends/python/PythonBackend.java b/src/main/java/org/zwobble/couscous/backends/python/PythonBackend.java
index 5c3d0c5..ca5fe34 100644
--- a/src/main/java/org/zwobble/couscous/backends/python/PythonBackend.java
+++ b/src/main/java/org/zwobble/couscous/backends/python/PythonBackend.java
@@ -7,6 +7,7 @@ import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.List;
 
+import org.zwobble.couscous.Backend;
 import org.zwobble.couscous.ast.ClassNode;
 
 import com.google.common.io.Resources;
@@ -15,7 +16,7 @@ import static java.util.Arrays.asList;
 import static org.zwobble.couscous.backends.python.PythonCodeGenerator.generateCode;
 import static org.zwobble.couscous.backends.python.PythonSerializer.serialize;
 
-public class PythonBackend {
+public class PythonBackend implements Backend {
     private static final List<String> RUNTIME_FILES = asList(
         "java.lang.Object",
         "java.lang.Integer",
@@ -29,6 +30,7 @@ public class PythonBackend {
         this.packageName = packageName;
     }
     
+    @Override
     public void compile(List<ClassNode> classes) throws IOException {
         for (ClassNode classNode : classes) {
             compileClass(classNode);