From cc1543421aafac336be05ac0b75cecc2da4b6818 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Mon, 5 Oct 2015 12:55:11 +0100
Subject: Split interpreter values from primitives

---
 .../backends/python/PythonCodeGenerator.java       | 36 ++++++++++++++++------
 1 file changed, 26 insertions(+), 10 deletions(-)

(limited to 'src/main/java/org/zwobble/couscous/backends/python')

diff --git a/src/main/java/org/zwobble/couscous/backends/python/PythonCodeGenerator.java b/src/main/java/org/zwobble/couscous/backends/python/PythonCodeGenerator.java
index 4c26a0a..eae713c 100644
--- a/src/main/java/org/zwobble/couscous/backends/python/PythonCodeGenerator.java
+++ b/src/main/java/org/zwobble/couscous/backends/python/PythonCodeGenerator.java
@@ -21,8 +21,11 @@ import org.zwobble.couscous.backends.python.ast.PythonExpressionNode;
 import org.zwobble.couscous.backends.python.ast.PythonFunctionDefinitionNode;
 import org.zwobble.couscous.backends.python.ast.PythonModuleNode;
 import org.zwobble.couscous.backends.python.ast.PythonStatementNode;
-import org.zwobble.couscous.interpreter.values.IntegerValue;
-import org.zwobble.couscous.interpreter.values.StringValue;
+import org.zwobble.couscous.values.BooleanValue;
+import org.zwobble.couscous.values.IntegerValue;
+import org.zwobble.couscous.values.PrimitiveValueVisitor;
+import org.zwobble.couscous.values.StringValue;
+import org.zwobble.couscous.values.UnitValue;
 
 import static java.util.Arrays.asList;
 import static org.zwobble.couscous.backends.python.ast.PythonClassNode.pythonClass;
@@ -81,14 +84,27 @@ public class PythonCodeGenerator {
     private static class ExpressionGenerator implements ExpressionNodeVisitor<PythonExpressionNode> {
         @Override
         public PythonExpressionNode visit(LiteralNode literal) {
-            // TODO: use visitor
-            if (literal.getValue() instanceof IntegerValue) {
-                return pythonIntegerLiteral(((IntegerValue)literal.getValue()).getValue());
-            } else if (literal.getValue() instanceof StringValue) {
-                    return pythonStringLiteral(((StringValue)literal.getValue()).getValue());
-            } else {
-                throw new UnsupportedOperationException();
-            }
+            return literal.getValue().accept(new PrimitiveValueVisitor<PythonExpressionNode>() {
+                @Override
+                public PythonExpressionNode visit(IntegerValue value) {
+                    return pythonIntegerLiteral(value.getValue());
+                }
+
+                @Override
+                public PythonExpressionNode visit(StringValue value) {
+                    return pythonStringLiteral(value.getValue());
+                }
+
+                @Override
+                public PythonExpressionNode visit(BooleanValue value) {
+                    throw new UnsupportedOperationException();
+                }
+
+                @Override
+                public PythonExpressionNode visit(UnitValue unitValue) {
+                    throw new UnsupportedOperationException();
+                }
+            });
         }
 
         @Override
-- 
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