Initial commit

src/main/java/chocopy/common/astnodes/IfExpr.java

@@ -0,0 +1,40 @@
+package chocopy.common.astnodes;
+
+import chocopy.common.analysis.NodeAnalyzer;
+import java_cup.runtime.ComplexSymbolFactory.Location;
+
+/**
+ * Conditional expressions.
+ */
+public class IfExpr extends Expr {
+    /**
+     * Boolean condition.
+     */
+    public final Expr condition;
+    /**
+     * True branch.
+     */
+    public final Expr thenExpr;
+    /**
+     * False branch.
+     */
+    public final Expr elseExpr;
+
+    /**
+     * The AST for
+     * THENEXPR if CONDITION else ELSEEXPR
+     * spanning source locations [LEFT..RIGHT].
+     */
+    public IfExpr(Location left, Location right,
+                  Expr condition, Expr thenExpr, Expr elseExpr) {
+        super(left, right);
+        this.condition = condition;
+        this.thenExpr = thenExpr;
+        this.elseExpr = elseExpr;
+    }
+
+    public <T> T dispatch(NodeAnalyzer<T> analyzer) {
+        return analyzer.analyze(this);
+    }
+
+}