From 74c98ef82b94abe7fe7548766471b8e43c149504 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 28 Feb 2016 14:14:47 +0000
Subject: C#: Write super types

---
 .../java/org/zwobble/couscous/ast/ClassNodeBuilder.java  | 11 +++++++++--
 .../org/zwobble/couscous/backends/SourceCodeWriter.java  | 15 +++++++--------
 .../couscous/backends/csharp/CsharpSerializer.java       | 16 ++++++++++++++++
 3 files changed, 32 insertions(+), 10 deletions(-)

(limited to 'src/main/java/org')

diff --git a/src/main/java/org/zwobble/couscous/ast/ClassNodeBuilder.java b/src/main/java/org/zwobble/couscous/ast/ClassNodeBuilder.java
index a4a268a..04491ab 100644
--- a/src/main/java/org/zwobble/couscous/ast/ClassNodeBuilder.java
+++ b/src/main/java/org/zwobble/couscous/ast/ClassNodeBuilder.java
@@ -1,6 +1,7 @@
 package org.zwobble.couscous.ast;
 
 import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
 import org.zwobble.couscous.ast.identifiers.Identifier;
 import org.zwobble.couscous.values.UnitValue;
 
@@ -8,13 +9,13 @@ import java.util.List;
 import java.util.Optional;
 import java.util.function.Function;
 
-import static java.util.Collections.emptySet;
 import static org.zwobble.couscous.ast.FormalArgumentNode.formalArg;
 import static org.zwobble.couscous.ast.VariableDeclaration.var;
 import static org.zwobble.couscous.util.ExtraLists.list;
 
 public class ClassNodeBuilder {
     private final TypeName name;
+    private final ImmutableSet.Builder<TypeName> superTypes;
     private final ImmutableList.Builder<FieldDeclarationNode> fields;
     private List<StatementNode> staticConstructor;
     private Optional<ConstructorNode> constructor;
@@ -22,6 +23,7 @@ public class ClassNodeBuilder {
 
     public ClassNodeBuilder(TypeName name) {
         this.name = name;
+        this.superTypes = ImmutableSet.builder();
         this.fields = ImmutableList.builder();
         staticConstructor = list();
         this.constructor = Optional.empty();
@@ -32,6 +34,11 @@ public class ClassNodeBuilder {
         this(TypeName.of(name));
     }
 
+    public ClassNodeBuilder addSuperType(String type) {
+        this.superTypes.add(TypeName.of(type));
+        return this;
+    }
+
     public ClassNodeBuilder staticField(String name, TypeName type) {
         return field(FieldDeclarationNode.staticField(name, type));
     }
@@ -97,7 +104,7 @@ public class ClassNodeBuilder {
     public ClassNode build() {
         return ClassNode.declareClass(
             name,
-            emptySet(),
+            superTypes.build(),
             fields.build(),
             staticConstructor,
             constructor.orElse(ConstructorNode.DEFAULT),
diff --git a/src/main/java/org/zwobble/couscous/backends/SourceCodeWriter.java b/src/main/java/org/zwobble/couscous/backends/SourceCodeWriter.java
index 301bb61..3908f72 100644
--- a/src/main/java/org/zwobble/couscous/backends/SourceCodeWriter.java
+++ b/src/main/java/org/zwobble/couscous/backends/SourceCodeWriter.java
@@ -3,11 +3,9 @@ package org.zwobble.couscous.backends;
 import com.google.common.base.Strings;
 import org.zwobble.couscous.util.Action;
 
-import java.util.List;
+import java.util.Iterator;
 import java.util.function.Consumer;
 
-import static com.google.common.collect.Iterables.skip;
-
 public class SourceCodeWriter {
     public interface WriterAction {
         void run(SourceCodeWriter writer);
@@ -95,12 +93,13 @@ public class SourceCodeWriter {
         action.run(this);
     }
 
-    public <T> void writeWithSeparator(List<T> values, Consumer<T> writeValue, Action separator) {
-        if (!values.isEmpty()) {
-            writeValue.accept(values.get(0));
-            for (T value : skip(values, 1)) {
+    public <T> void writeWithSeparator(Iterable<T> values, Consumer<T> writeValue, Action separator) {
+        Iterator<T> iterator = values.iterator();
+        if (iterator.hasNext()) {
+            writeValue.accept(iterator.next());
+            while(iterator.hasNext()) {
                 separator.run();
-                writeValue.accept(value);
+                writeValue.accept(iterator.next());
             }
         }
     }
diff --git a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
index 8a92a51..a3479fa 100644
--- a/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
+++ b/src/main/java/org/zwobble/couscous/backends/csharp/CsharpSerializer.java
@@ -337,6 +337,7 @@ public class CsharpSerializer implements NodeVisitor {
                 writer.writeKeyword(keyword);
                 writer.writeSpace();
                 writer.writeIdentifier(node.getName().getSimpleName());
+                writeSuperTypes(node);
                 writer.startBlock();
                 writeBody.run();
                 writer.endBlock();
@@ -346,6 +347,21 @@ public class CsharpSerializer implements NodeVisitor {
         });
     }
 
+    private void writeSuperTypes(TypeNode node) {
+        if (!node.getSuperTypes().isEmpty()) {
+            writer.writeSpace();
+            writer.writeSymbol(":");
+            writer.writeSpace();
+            writer.writeWithSeparator(
+                node.getSuperTypes(),
+                this::writeTypeReference,
+                () -> {
+                    writer.writeSymbol(",");
+                    writer.writeSpace();
+                });
+        }
+    }
+
     private void writeStaticConstructor(ClassNode classNode) {
         if (!classNode.getStaticConstructor().isEmpty()) {
             writer.writeStatement(() -> {
-- 
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