From ecfac0740033b048b55001332eb11131b64ddcaf Mon Sep 17 00:00:00 2001
From: Michael Williamson <mike@zwobble.org>
Date: Sun, 17 Apr 2016 15:33:54 +0100
Subject: Add try nodes

---
 .../java/org/zwobble/couscous/ast/TryNode.java     | 71 ++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 src/main/java/org/zwobble/couscous/ast/TryNode.java

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

diff --git a/src/main/java/org/zwobble/couscous/ast/TryNode.java b/src/main/java/org/zwobble/couscous/ast/TryNode.java
new file mode 100644
index 0000000..643e65c
--- /dev/null
+++ b/src/main/java/org/zwobble/couscous/ast/TryNode.java
@@ -0,0 +1,71 @@
+package org.zwobble.couscous.ast;
+
+import org.zwobble.couscous.ast.visitors.NodeTransformer;
+import org.zwobble.couscous.ast.visitors.StatementNodeMapper;
+
+import java.util.List;
+
+import static org.zwobble.couscous.util.ExtraLists.eagerMap;
+
+public class TryNode implements StatementNode {
+    public static TryNode tryStatement(List<StatementNode> body, List<ExceptionHandlerNode> exceptionHandlers) {
+        return new TryNode(body, exceptionHandlers);
+    }
+
+    private final List<StatementNode> body;
+    private final List<ExceptionHandlerNode> exceptionHandlers;
+
+    public TryNode(List<StatementNode> body, List<ExceptionHandlerNode> exceptionHandlers) {
+        this.body = body;
+        this.exceptionHandlers = exceptionHandlers;
+    }
+
+    public List<StatementNode> getBody() {
+        return body;
+    }
+
+    public List<ExceptionHandlerNode> getExceptionHandlers() {
+        return exceptionHandlers;
+    }
+
+    @Override
+    public <T> T accept(StatementNodeMapper<T> visitor) {
+        return visitor.visit(this);
+    }
+
+    @Override
+    public StatementNode transform(NodeTransformer transformer) {
+        return new TryNode(
+            transformer.transformStatements(body),
+            eagerMap(exceptionHandlers, handler -> new ExceptionHandlerNode(
+                transformer.transform(handler.getExceptionType()),
+                transformer.transformStatements(handler.getBody()))));
+    }
+
+    @Override
+    public String toString() {
+        return "TryNode(" +
+            "body=" + body +
+            ", exceptionHandlers=" + exceptionHandlers +
+            ')';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        TryNode tryNode = (TryNode) o;
+
+        if (!body.equals(tryNode.body)) return false;
+        return exceptionHandlers.equals(tryNode.exceptionHandlers);
+
+    }
+
+    @Override
+    public int hashCode() {
+        int result = body.hashCode();
+        result = 31 * result + exceptionHandlers.hashCode();
+        return result;
+    }
+}
-- 
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