From 3a3f549c3ff0e59bcefef29e1b870686aebec532 Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 24 Jan 2016 15:48:29 +0000
Subject: Introduce separate OperationNode that can be desugarred

---
 .../org/zwobble/couscous/ast/OperationNode.java    | 75 ++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 src/main/java/org/zwobble/couscous/ast/OperationNode.java

(limited to 'src/main/java/org/zwobble/couscous/ast/OperationNode.java')

diff --git a/src/main/java/org/zwobble/couscous/ast/OperationNode.java b/src/main/java/org/zwobble/couscous/ast/OperationNode.java
new file mode 100644
index 0000000..c3447ef
--- /dev/null
+++ b/src/main/java/org/zwobble/couscous/ast/OperationNode.java
@@ -0,0 +1,75 @@
+package org.zwobble.couscous.ast;
+
+import org.zwobble.couscous.ast.visitors.ExpressionNodeMapper;
+import org.zwobble.couscous.ast.visitors.NodeTransformer;
+
+import java.util.List;
+
+public class OperationNode implements ExpressionNode {
+    public static OperationNode operation(Operator operator, List<ExpressionNode> arguments, TypeName type) {
+        return new OperationNode(operator, arguments, type);
+    }
+
+    private final Operator operator;
+    private final List<ExpressionNode> arguments;
+    private TypeName type;
+
+    OperationNode(Operator operator, List<ExpressionNode> arguments, TypeName type) {
+        this.operator = operator;
+        this.arguments = arguments;
+        this.type = type;
+    }
+
+    public ExpressionNode desugar() {
+        return MethodCallNode.methodCall(
+            arguments.get(0),
+            operator.getMethodName(),
+            arguments.subList(1, arguments.size()),
+            type);
+    }
+
+    @Override
+    public TypeName getType() {
+        return type;
+    }
+
+    @Override
+    public <T> T accept(ExpressionNodeMapper<T> visitor) {
+        return desugar().accept(visitor);
+    }
+
+    @Override
+    public ExpressionNode transform(NodeTransformer transformer) {
+        return desugar().transform(transformer);
+    }
+
+    @Override
+    public String toString() {
+        return "OperationNode(" +
+            "operator=" + operator +
+            ", arguments=" + arguments +
+            ", type=" + type +
+            ')';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        OperationNode that = (OperationNode) o;
+
+        if (operator != that.operator) return false;
+        if (!arguments.equals(that.arguments)) return false;
+        return type.equals(that.type);
+
+    }
+
+    @Override
+    public int hashCode() {
+        int result = operator.hashCode();
+        result = 31 * result + arguments.hashCode();
+        result = 31 * result + type.hashCode();
+        return result;
+    }
+}
-- 
cgit v1.2.3